config DRM_IMX_PARALLEL_DISPLAY
tristate "Support for parallel displays"
depends on DRM_IMX
+
+config DRM_IMX_IPUV3_CORE
+ tristate "IPUv3 core support"
+ depends on DRM_IMX
+ help
+ Choose this if you have a i.MX5/6 system and want
+ to use the IPU. This option only enables IPU base
+ support.
obj-$(CONFIG_DRM_IMX_PARALLEL_DISPLAY) += parallel-display.o
obj-$(CONFIG_DRM_IMX_FB_HELPER) += imx-fbdev.o
+obj-$(CONFIG_DRM_IMX_IPUV3_CORE) += ipu-v3/
encoder_type, interface_pix_fmt);
return 0;
}
+EXPORT_SYMBOL_GPL(imx_drm_crtc_panel_format);
int imx_drm_crtc_vblank_get(struct imx_drm_crtc *imx_drm_crtc)
{
return 0;
}
+EXPORT_SYMBOL_GPL(imx_drm_encoder_add_possible_crtcs);
int imx_drm_encoder_get_mux_id(struct imx_drm_encoder *imx_drm_encoder,
struct drm_crtc *crtc)
--- /dev/null
+obj-$(CONFIG_DRM_IMX_IPUV3_CORE) += imx-ipu-v3.o
+
+imx-ipu-v3-objs := ipu-common.o ipu-dc.o ipu-di.o ipu-dp.o ipu-dmfc.o
--- /dev/null
+/*
+ * Copyright 2005-2009 Freescale Semiconductor, Inc.
+ *
+ * The code contained herein is licensed under the GNU Lesser General
+ * Public License. You may obtain a copy of the GNU Lesser General
+ * Public License Version 2.1 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/lgpl-license.html
+ * http://www.gnu.org/copyleft/lgpl.html
+ */
+
+#ifndef __DRM_IPU_H__
+#define __DRM_IPU_H__
+
+#include <linux/types.h>
+#include <linux/videodev2.h>
+#include <linux/bitmap.h>
+#include <linux/fb.h>
+#include <linux/videodev2.h>
+
+struct ipu_soc;
+
+enum ipuv3_type {
+ IPUV3EX,
+ IPUV3M,
+ IPUV3H,
+};
+
+/*
+ * Bitfield of Display Interface signal polarities.
+ */
+struct ipu_di_signal_cfg {
+ unsigned datamask_en:1;
+ unsigned interlaced:1;
+ unsigned odd_field_first:1;
+ unsigned clksel_en:1;
+ unsigned clkidle_en:1;
+ unsigned data_pol:1; /* true = inverted */
+ unsigned clk_pol:1; /* true = rising edge */
+ unsigned enable_pol:1;
+ unsigned Hsync_pol:1; /* true = active high */
+ unsigned Vsync_pol:1;
+
+ u16 width;
+ u16 height;
+ u32 pixel_fmt;
+ u16 h_start_width;
+ u16 h_sync_width;
+ u16 h_end_width;
+ u16 v_start_width;
+ u16 v_sync_width;
+ u16 v_end_width;
+ u32 v_to_h_sync;
+ unsigned long pixelclock;
+#define IPU_DI_CLKMODE_SYNC (1 << 0)
+#define IPU_DI_CLKMODE_EXT (1 << 1)
+ unsigned long clkflags;
+};
+
+enum ipu_color_space {
+ IPUV3_COLORSPACE_RGB,
+ IPUV3_COLORSPACE_YUV,
+ IPUV3_COLORSPACE_UNKNOWN,
+};
+
+struct ipuv3_channel;
+
+enum ipu_channel_irq {
+ IPU_IRQ_EOF = 0,
+ IPU_IRQ_NFACK = 64,
+ IPU_IRQ_NFB4EOF = 128,
+ IPU_IRQ_EOS = 192,
+};
+
+int ipu_idmac_channel_irq(struct ipu_soc *ipu, struct ipuv3_channel *channel,
+ enum ipu_channel_irq irq);
+
+#define IPU_IRQ_DP_SF_START (448 + 2)
+#define IPU_IRQ_DP_SF_END (448 + 3)
+#define IPU_IRQ_BG_SF_END IPU_IRQ_DP_SF_END,
+#define IPU_IRQ_DC_FC_0 (448 + 8)
+#define IPU_IRQ_DC_FC_1 (448 + 9)
+#define IPU_IRQ_DC_FC_2 (448 + 10)
+#define IPU_IRQ_DC_FC_3 (448 + 11)
+#define IPU_IRQ_DC_FC_4 (448 + 12)
+#define IPU_IRQ_DC_FC_6 (448 + 13)
+#define IPU_IRQ_VSYNC_PRE_0 (448 + 14)
+#define IPU_IRQ_VSYNC_PRE_1 (448 + 15)
+
+/*
+ * IPU Image DMA Controller (idmac) functions
+ */
+struct ipuv3_channel *ipu_idmac_get(struct ipu_soc *ipu, unsigned channel);
+void ipu_idmac_put(struct ipuv3_channel *);
+
+int ipu_idmac_enable_channel(struct ipuv3_channel *channel);
+int ipu_idmac_disable_channel(struct ipuv3_channel *channel);
+
+void ipu_idmac_set_double_buffer(struct ipuv3_channel *channel,
+ bool doublebuffer);
+void ipu_idmac_select_buffer(struct ipuv3_channel *channel, u32 buf_num);
+
+/*
+ * IPU Display Controller (dc) functions
+ */
+struct ipu_dc;
+struct ipu_di;
+struct ipu_dc *ipu_dc_get(struct ipu_soc *ipu, int channel);
+void ipu_dc_put(struct ipu_dc *dc);
+int ipu_dc_init_sync(struct ipu_dc *dc, struct ipu_di *di, bool interlaced,
+ u32 pixel_fmt, u32 width);
+void ipu_dc_enable_channel(struct ipu_dc *dc);
+void ipu_dc_disable_channel(struct ipu_dc *dc);
+
+/*
+ * IPU Display Interface (di) functions
+ */
+struct ipu_di *ipu_di_get(struct ipu_soc *ipu, int disp);
+void ipu_di_put(struct ipu_di *);
+int ipu_di_disable(struct ipu_di *);
+int ipu_di_enable(struct ipu_di *);
+int ipu_di_get_num(struct ipu_di *);
+int ipu_di_init_sync_panel(struct ipu_di *, struct ipu_di_signal_cfg *sig);
+
+/*
+ * IPU Display Multi FIFO Controller (dmfc) functions
+ */
+struct dmfc_channel;
+int ipu_dmfc_enable_channel(struct dmfc_channel *dmfc);
+void ipu_dmfc_disable_channel(struct dmfc_channel *dmfc);
+int ipu_dmfc_alloc_bandwidth(struct dmfc_channel *dmfc,
+ unsigned long bandwidth_mbs, int burstsize);
+void ipu_dmfc_free_bandwidth(struct dmfc_channel *dmfc);
+int ipu_dmfc_init_channel(struct dmfc_channel *dmfc, int width);
+struct dmfc_channel *ipu_dmfc_get(struct ipu_soc *ipu, int ipuv3_channel);
+void ipu_dmfc_put(struct dmfc_channel *dmfc);
+
+/*
+ * IPU Display Processor (dp) functions
+ */
+#define IPU_DP_FLOW_SYNC_BG 0
+#define IPU_DP_FLOW_SYNC_FG 1
+#define IPU_DP_FLOW_ASYNC0_BG 2
+#define IPU_DP_FLOW_ASYNC0_FG 3
+#define IPU_DP_FLOW_ASYNC1_BG 4
+#define IPU_DP_FLOW_ASYNC1_FG 5
+
+struct ipu_dp *ipu_dp_get(struct ipu_soc *ipu, unsigned int flow);
+void ipu_dp_put(struct ipu_dp *);
+int ipu_dp_enable_channel(struct ipu_dp *dp);
+void ipu_dp_disable_channel(struct ipu_dp *dp);
+int ipu_dp_setup_channel(struct ipu_dp *dp,
+ enum ipu_color_space in, enum ipu_color_space out);
+int ipu_dp_set_window_pos(struct ipu_dp *, u16 x_pos, u16 y_pos);
+int ipu_dp_set_global_alpha(struct ipu_dp *dp, bool enable, u8 alpha,
+ bool bg_chan);
+
+#define IPU_CPMEM_WORD(word, ofs, size) ((((word) * 160 + (ofs)) << 8) | (size))
+
+#define IPU_FIELD_UBO IPU_CPMEM_WORD(0, 46, 22)
+#define IPU_FIELD_VBO IPU_CPMEM_WORD(0, 68, 22)
+#define IPU_FIELD_IOX IPU_CPMEM_WORD(0, 90, 4)
+#define IPU_FIELD_RDRW IPU_CPMEM_WORD(0, 94, 1)
+#define IPU_FIELD_SO IPU_CPMEM_WORD(0, 113, 1)
+#define IPU_FIELD_SLY IPU_CPMEM_WORD(1, 102, 14)
+#define IPU_FIELD_SLUV IPU_CPMEM_WORD(1, 128, 14)
+
+#define IPU_FIELD_XV IPU_CPMEM_WORD(0, 0, 10)
+#define IPU_FIELD_YV IPU_CPMEM_WORD(0, 10, 9)
+#define IPU_FIELD_XB IPU_CPMEM_WORD(0, 19, 13)
+#define IPU_FIELD_YB IPU_CPMEM_WORD(0, 32, 12)
+#define IPU_FIELD_NSB_B IPU_CPMEM_WORD(0, 44, 1)
+#define IPU_FIELD_CF IPU_CPMEM_WORD(0, 45, 1)
+#define IPU_FIELD_SX IPU_CPMEM_WORD(0, 46, 12)
+#define IPU_FIELD_SY IPU_CPMEM_WORD(0, 58, 11)
+#define IPU_FIELD_NS IPU_CPMEM_WORD(0, 69, 10)
+#define IPU_FIELD_SDX IPU_CPMEM_WORD(0, 79, 7)
+#define IPU_FIELD_SM IPU_CPMEM_WORD(0, 86, 10)
+#define IPU_FIELD_SCC IPU_CPMEM_WORD(0, 96, 1)
+#define IPU_FIELD_SCE IPU_CPMEM_WORD(0, 97, 1)
+#define IPU_FIELD_SDY IPU_CPMEM_WORD(0, 98, 7)
+#define IPU_FIELD_SDRX IPU_CPMEM_WORD(0, 105, 1)
+#define IPU_FIELD_SDRY IPU_CPMEM_WORD(0, 106, 1)
+#define IPU_FIELD_BPP IPU_CPMEM_WORD(0, 107, 3)
+#define IPU_FIELD_DEC_SEL IPU_CPMEM_WORD(0, 110, 2)
+#define IPU_FIELD_DIM IPU_CPMEM_WORD(0, 112, 1)
+#define IPU_FIELD_BNDM IPU_CPMEM_WORD(0, 114, 3)
+#define IPU_FIELD_BM IPU_CPMEM_WORD(0, 117, 2)
+#define IPU_FIELD_ROT IPU_CPMEM_WORD(0, 119, 1)
+#define IPU_FIELD_HF IPU_CPMEM_WORD(0, 120, 1)
+#define IPU_FIELD_VF IPU_CPMEM_WORD(0, 121, 1)
+#define IPU_FIELD_THE IPU_CPMEM_WORD(0, 122, 1)
+#define IPU_FIELD_CAP IPU_CPMEM_WORD(0, 123, 1)
+#define IPU_FIELD_CAE IPU_CPMEM_WORD(0, 124, 1)
+#define IPU_FIELD_FW IPU_CPMEM_WORD(0, 125, 13)
+#define IPU_FIELD_FH IPU_CPMEM_WORD(0, 138, 12)
+#define IPU_FIELD_EBA0 IPU_CPMEM_WORD(1, 0, 29)
+#define IPU_FIELD_EBA1 IPU_CPMEM_WORD(1, 29, 29)
+#define IPU_FIELD_ILO IPU_CPMEM_WORD(1, 58, 20)
+#define IPU_FIELD_NPB IPU_CPMEM_WORD(1, 78, 7)
+#define IPU_FIELD_PFS IPU_CPMEM_WORD(1, 85, 4)
+#define IPU_FIELD_ALU IPU_CPMEM_WORD(1, 89, 1)
+#define IPU_FIELD_ALBM IPU_CPMEM_WORD(1, 90, 3)
+#define IPU_FIELD_ID IPU_CPMEM_WORD(1, 93, 2)
+#define IPU_FIELD_TH IPU_CPMEM_WORD(1, 95, 7)
+#define IPU_FIELD_SL IPU_CPMEM_WORD(1, 102, 14)
+#define IPU_FIELD_WID0 IPU_CPMEM_WORD(1, 116, 3)
+#define IPU_FIELD_WID1 IPU_CPMEM_WORD(1, 119, 3)
+#define IPU_FIELD_WID2 IPU_CPMEM_WORD(1, 122, 3)
+#define IPU_FIELD_WID3 IPU_CPMEM_WORD(1, 125, 3)
+#define IPU_FIELD_OFS0 IPU_CPMEM_WORD(1, 128, 5)
+#define IPU_FIELD_OFS1 IPU_CPMEM_WORD(1, 133, 5)
+#define IPU_FIELD_OFS2 IPU_CPMEM_WORD(1, 138, 5)
+#define IPU_FIELD_OFS3 IPU_CPMEM_WORD(1, 143, 5)
+#define IPU_FIELD_SXYS IPU_CPMEM_WORD(1, 148, 1)
+#define IPU_FIELD_CRE IPU_CPMEM_WORD(1, 149, 1)
+#define IPU_FIELD_DEC_SEL2 IPU_CPMEM_WORD(1, 150, 1)
+
+struct ipu_cpmem_word {
+ u32 data[5];
+ u32 res[3];
+};
+
+struct ipu_ch_param {
+ struct ipu_cpmem_word word[2];
+};
+
+void ipu_ch_param_write_field(struct ipu_ch_param __iomem *base, u32 wbs, u32 v);
+u32 ipu_ch_param_read_field(struct ipu_ch_param __iomem *base, u32 wbs);
+struct ipu_ch_param __iomem *ipu_get_cpmem(struct ipuv3_channel *channel);
+void ipu_ch_param_dump(struct ipu_ch_param __iomem *p);
+
+static inline void ipu_ch_param_zero(struct ipu_ch_param __iomem *p)
+{
+ int i;
+ void __iomem *base = p;
+
+ for (i = 0; i < sizeof(*p) / sizeof(u32); i++)
+ writel(0, base + i * sizeof(u32));
+}
+
+static inline void ipu_cpmem_set_buffer(struct ipu_ch_param __iomem *p,
+ int bufnum, dma_addr_t buf)
+{
+ if (bufnum)
+ ipu_ch_param_write_field(p, IPU_FIELD_EBA1, buf >> 3);
+ else
+ ipu_ch_param_write_field(p, IPU_FIELD_EBA0, buf >> 3);
+}
+
+static inline void ipu_cpmem_set_resolution(struct ipu_ch_param __iomem *p,
+ int xres, int yres)
+{
+ ipu_ch_param_write_field(p, IPU_FIELD_FW, xres - 1);
+ ipu_ch_param_write_field(p, IPU_FIELD_FH, yres - 1);
+}
+
+static inline void ipu_cpmem_set_stride(struct ipu_ch_param __iomem *p,
+ int stride)
+{
+ ipu_ch_param_write_field(p, IPU_FIELD_SLY, stride - 1);
+}
+
+void ipu_cpmem_set_high_priority(struct ipuv3_channel *channel);
+
+struct ipu_rgb {
+ struct fb_bitfield red;
+ struct fb_bitfield green;
+ struct fb_bitfield blue;
+ struct fb_bitfield transp;
+ int bits_per_pixel;
+};
+
+struct ipu_image {
+ struct v4l2_pix_format pix;
+ struct v4l2_rect rect;
+ dma_addr_t phys;
+};
+
+int ipu_cpmem_set_format_passthrough(struct ipu_ch_param __iomem *p,
+ int width);
+
+int ipu_cpmem_set_format_rgb(struct ipu_ch_param __iomem *,
+ struct ipu_rgb *rgb);
+
+static inline void ipu_cpmem_interlaced_scan(struct ipu_ch_param *p,
+ int stride)
+{
+ ipu_ch_param_write_field(p, IPU_FIELD_SO, 1);
+ ipu_ch_param_write_field(p, IPU_FIELD_ILO, stride / 8);
+ ipu_ch_param_write_field(p, IPU_FIELD_SLY, (stride * 2) - 1);
+};
+
+void ipu_cpmem_set_yuv_planar(struct ipu_ch_param __iomem *p, u32 pixel_format,
+ int stride, int height);
+void ipu_cpmem_set_yuv_planar_full(struct ipu_ch_param __iomem *p,
+ u32 pixel_format, int stride, int u_offset, int v_offset);
+int ipu_cpmem_set_fmt(struct ipu_ch_param __iomem *cpmem, u32 pixelformat);
+int ipu_cpmem_set_image(struct ipu_ch_param __iomem *cpmem,
+ struct ipu_image *image);
+
+enum ipu_color_space ipu_pixelformat_to_colorspace(u32 pixelformat);
+
+static inline void ipu_cpmem_set_burstsize(struct ipu_ch_param __iomem *p,
+ int burstsize)
+{
+ ipu_ch_param_write_field(p, IPU_FIELD_NPB, burstsize - 1);
+};
+
+struct ipu_client_platformdata {
+ int di;
+ int dc;
+ int dp;
+ int dmfc;
+ int dma[2];
+};
+
+#endif /* __DRM_IPU_H__ */
--- /dev/null
+/*
+ * Copyright (c) 2010 Sascha Hauer <s.hauer@pengutronix.de>
+ * Copyright (C) 2005-2009 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ */
+#include <linux/module.h>
+#include <linux/export.h>
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/err.h>
+#include <linux/spinlock.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/clk.h>
+#include <linux/list.h>
+#include <linux/irq.h>
+#include <linux/of_device.h>
+#include <asm/mach/irq.h>
+
+#include "imx-ipu-v3.h"
+#include "ipu-prv.h"
+
+static inline u32 ipu_cm_read(struct ipu_soc *ipu, unsigned offset)
+{
+ return readl(ipu->cm_reg + offset);
+}
+
+static inline void ipu_cm_write(struct ipu_soc *ipu, u32 value, unsigned offset)
+{
+ writel(value, ipu->cm_reg + offset);
+}
+
+static inline u32 ipu_idmac_read(struct ipu_soc *ipu, unsigned offset)
+{
+ return readl(ipu->idmac_reg + offset);
+}
+
+static inline void ipu_idmac_write(struct ipu_soc *ipu, u32 value,
+ unsigned offset)
+{
+ writel(value, ipu->idmac_reg + offset);
+}
+
+void ipu_srm_dp_sync_update(struct ipu_soc *ipu)
+{
+ u32 val;
+
+ val = ipu_cm_read(ipu, IPU_SRM_PRI2);
+ val |= 0x8;
+ ipu_cm_write(ipu, val, IPU_SRM_PRI2);
+}
+EXPORT_SYMBOL_GPL(ipu_srm_dp_sync_update);
+
+struct ipu_ch_param __iomem *ipu_get_cpmem(struct ipuv3_channel *channel)
+{
+ struct ipu_soc *ipu = channel->ipu;
+
+ return ipu->cpmem_base + channel->num;
+}
+EXPORT_SYMBOL_GPL(ipu_get_cpmem);
+
+void ipu_cpmem_set_high_priority(struct ipuv3_channel *channel)
+{
+ struct ipu_soc *ipu = channel->ipu;
+ struct ipu_ch_param __iomem *p = ipu_get_cpmem(channel);
+ u32 val;
+
+ if (ipu->ipu_type == IPUV3EX)
+ ipu_ch_param_write_field(p, IPU_FIELD_ID, 1);
+
+ val = ipu_idmac_read(ipu, IDMAC_CHA_PRI(channel->num));
+ val |= 1 << (channel->num % 32);
+ ipu_idmac_write(ipu, val, IDMAC_CHA_PRI(channel->num));
+};
+EXPORT_SYMBOL_GPL(ipu_cpmem_set_high_priority);
+
+void ipu_ch_param_write_field(struct ipu_ch_param __iomem *base, u32 wbs, u32 v)
+{
+ u32 bit = (wbs >> 8) % 160;
+ u32 size = wbs & 0xff;
+ u32 word = (wbs >> 8) / 160;
+ u32 i = bit / 32;
+ u32 ofs = bit % 32;
+ u32 mask = (1 << size) - 1;
+ u32 val;
+
+ pr_debug("%s %d %d %d\n", __func__, word, bit , size);
+
+ val = readl(&base->word[word].data[i]);
+ val &= ~(mask << ofs);
+ val |= v << ofs;
+ writel(val, &base->word[word].data[i]);
+
+ if ((bit + size - 1) / 32 > i) {
+ val = readl(&base->word[word].data[i + 1]);
+ val &= ~(mask >> (ofs ? (32 - ofs) : 0));
+ val |= v >> (ofs ? (32 - ofs) : 0);
+ writel(val, &base->word[word].data[i + 1]);
+ }
+}
+EXPORT_SYMBOL_GPL(ipu_ch_param_write_field);
+
+u32 ipu_ch_param_read_field(struct ipu_ch_param __iomem *base, u32 wbs)
+{
+ u32 bit = (wbs >> 8) % 160;
+ u32 size = wbs & 0xff;
+ u32 word = (wbs >> 8) / 160;
+ u32 i = bit / 32;
+ u32 ofs = bit % 32;
+ u32 mask = (1 << size) - 1;
+ u32 val = 0;
+
+ pr_debug("%s %d %d %d\n", __func__, word, bit , size);
+
+ val = (readl(&base->word[word].data[i]) >> ofs) & mask;
+
+ if ((bit + size - 1) / 32 > i) {
+ u32 tmp;
+ tmp = readl(&base->word[word].data[i + 1]);
+ tmp &= mask >> (ofs ? (32 - ofs) : 0);
+ val |= tmp << (ofs ? (32 - ofs) : 0);
+ }
+
+ return val;
+}
+EXPORT_SYMBOL_GPL(ipu_ch_param_read_field);
+
+int ipu_cpmem_set_format_rgb(struct ipu_ch_param __iomem *p,
+ struct ipu_rgb *rgb)
+{
+ int bpp = 0, npb = 0, ro, go, bo, to;
+
+ ro = rgb->bits_per_pixel - rgb->red.length - rgb->red.offset;
+ go = rgb->bits_per_pixel - rgb->green.length - rgb->green.offset;
+ bo = rgb->bits_per_pixel - rgb->blue.length - rgb->blue.offset;
+ to = rgb->bits_per_pixel - rgb->transp.length - rgb->transp.offset;
+
+ ipu_ch_param_write_field(p, IPU_FIELD_WID0, rgb->red.length - 1);
+ ipu_ch_param_write_field(p, IPU_FIELD_OFS0, ro);
+ ipu_ch_param_write_field(p, IPU_FIELD_WID1, rgb->green.length - 1);
+ ipu_ch_param_write_field(p, IPU_FIELD_OFS1, go);
+ ipu_ch_param_write_field(p, IPU_FIELD_WID2, rgb->blue.length - 1);
+ ipu_ch_param_write_field(p, IPU_FIELD_OFS2, bo);
+
+ if (rgb->transp.length) {
+ ipu_ch_param_write_field(p, IPU_FIELD_WID3,
+ rgb->transp.length - 1);
+ ipu_ch_param_write_field(p, IPU_FIELD_OFS3, to);
+ } else {
+ ipu_ch_param_write_field(p, IPU_FIELD_WID3, 7);
+ ipu_ch_param_write_field(p, IPU_FIELD_OFS3,
+ rgb->bits_per_pixel);
+ }
+
+ switch (rgb->bits_per_pixel) {
+ case 32:
+ bpp = 0;
+ npb = 15;
+ break;
+ case 24:
+ bpp = 1;
+ npb = 19;
+ break;
+ case 16:
+ bpp = 3;
+ npb = 31;
+ break;
+ case 8:
+ bpp = 5;
+ npb = 63;
+ break;
+ default:
+ return -EINVAL;
+ }
+ ipu_ch_param_write_field(p, IPU_FIELD_BPP, bpp);
+ ipu_ch_param_write_field(p, IPU_FIELD_NPB, npb);
+ ipu_ch_param_write_field(p, IPU_FIELD_PFS, 7); /* rgb mode */
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(ipu_cpmem_set_format_rgb);
+
+int ipu_cpmem_set_format_passthrough(struct ipu_ch_param __iomem *p,
+ int width)
+{
+ int bpp = 0, npb = 0;
+
+ switch (width) {
+ case 32:
+ bpp = 0;
+ npb = 15;
+ break;
+ case 24:
+ bpp = 1;
+ npb = 19;
+ break;
+ case 16:
+ bpp = 3;
+ npb = 31;
+ break;
+ case 8:
+ bpp = 5;
+ npb = 63;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ ipu_ch_param_write_field(p, IPU_FIELD_BPP, bpp);
+ ipu_ch_param_write_field(p, IPU_FIELD_NPB, npb);
+ ipu_ch_param_write_field(p, IPU_FIELD_PFS, 6); /* raw mode */
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(ipu_cpmem_set_format_passthrough);
+
+void ipu_cpmem_set_yuv_planar_full(struct ipu_ch_param __iomem *p,
+ u32 pixel_format, int stride, int u_offset, int v_offset)
+{
+ switch (pixel_format) {
+ case V4L2_PIX_FMT_YUV420:
+ ipu_ch_param_write_field(p, IPU_FIELD_SLUV, (stride / 2) - 1);
+ ipu_ch_param_write_field(p, IPU_FIELD_UBO, u_offset / 8);
+ ipu_ch_param_write_field(p, IPU_FIELD_VBO, v_offset / 8);
+ break;
+ }
+}
+EXPORT_SYMBOL_GPL(ipu_cpmem_set_yuv_planar_full);
+
+void ipu_cpmem_set_yuv_planar(struct ipu_ch_param __iomem *p, u32 pixel_format,
+ int stride, int height)
+{
+ int u_offset, v_offset;
+ int uv_stride = 0;
+
+ switch (pixel_format) {
+ case V4L2_PIX_FMT_YUV420:
+ uv_stride = stride / 2;
+ u_offset = stride * height;
+ v_offset = u_offset + (uv_stride * height / 2);
+ ipu_cpmem_set_yuv_planar_full(p, V4L2_PIX_FMT_YUV420, stride,
+ u_offset, v_offset);
+ break;
+ }
+}
+EXPORT_SYMBOL_GPL(ipu_cpmem_set_yuv_planar);
+
+static struct ipu_rgb def_rgb_32 = {
+ .red = { .offset = 16, .length = 8, },
+ .green = { .offset = 8, .length = 8, },
+ .blue = { .offset = 0, .length = 8, },
+ .transp = { .offset = 24, .length = 8, },
+ .bits_per_pixel = 32,
+};
+
+static struct ipu_rgb def_bgr_32 = {
+ .red = { .offset = 16, .length = 8, },
+ .green = { .offset = 8, .length = 8, },
+ .blue = { .offset = 0, .length = 8, },
+ .transp = { .offset = 24, .length = 8, },
+ .bits_per_pixel = 32,
+};
+
+static struct ipu_rgb def_rgb_24 = {
+ .red = { .offset = 0, .length = 8, },
+ .green = { .offset = 8, .length = 8, },
+ .blue = { .offset = 16, .length = 8, },
+ .transp = { .offset = 0, .length = 0, },
+ .bits_per_pixel = 24,
+};
+
+static struct ipu_rgb def_bgr_24 = {
+ .red = { .offset = 16, .length = 8, },
+ .green = { .offset = 8, .length = 8, },
+ .blue = { .offset = 0, .length = 8, },
+ .transp = { .offset = 0, .length = 0, },
+ .bits_per_pixel = 24,
+};
+
+static struct ipu_rgb def_rgb_16 = {
+ .red = { .offset = 11, .length = 5, },
+ .green = { .offset = 5, .length = 6, },
+ .blue = { .offset = 0, .length = 5, },
+ .transp = { .offset = 0, .length = 0, },
+ .bits_per_pixel = 16,
+};
+
+#define Y_OFFSET(pix, x, y) ((x) + pix->width * (y))
+#define U_OFFSET(pix, x, y) ((pix->width * pix->height) + \
+ (pix->width * (y) / 4) + (x) / 2)
+#define V_OFFSET(pix, x, y) ((pix->width * pix->height) + \
+ (pix->width * pix->height / 4) + \
+ (pix->width * (y) / 4) + (x) / 2)
+
+int ipu_cpmem_set_fmt(struct ipu_ch_param __iomem *cpmem, u32 pixelformat)
+{
+ switch (pixelformat) {
+ case V4L2_PIX_FMT_YUV420:
+ /* pix format */
+ ipu_ch_param_write_field(cpmem, IPU_FIELD_PFS, 2);
+ /* burst size */
+ ipu_ch_param_write_field(cpmem, IPU_FIELD_NPB, 63);
+ break;
+ case V4L2_PIX_FMT_UYVY:
+ /* bits/pixel */
+ ipu_ch_param_write_field(cpmem, IPU_FIELD_BPP, 3);
+ /* pix format */
+ ipu_ch_param_write_field(cpmem, IPU_FIELD_PFS, 0xA);
+ /* burst size */
+ ipu_ch_param_write_field(cpmem, IPU_FIELD_NPB, 31);
+ break;
+ case V4L2_PIX_FMT_YUYV:
+ /* bits/pixel */
+ ipu_ch_param_write_field(cpmem, IPU_FIELD_BPP, 3);
+ /* pix format */
+ ipu_ch_param_write_field(cpmem, IPU_FIELD_PFS, 0x8);
+ /* burst size */
+ ipu_ch_param_write_field(cpmem, IPU_FIELD_NPB, 31);
+ break;
+ case V4L2_PIX_FMT_RGB32:
+ ipu_cpmem_set_format_rgb(cpmem, &def_rgb_32);
+ break;
+ case V4L2_PIX_FMT_RGB565:
+ ipu_cpmem_set_format_rgb(cpmem, &def_rgb_16);
+ break;
+ case V4L2_PIX_FMT_BGR32:
+ ipu_cpmem_set_format_rgb(cpmem, &def_bgr_32);
+ break;
+ case V4L2_PIX_FMT_RGB24:
+ ipu_cpmem_set_format_rgb(cpmem, &def_rgb_24);
+ break;
+ case V4L2_PIX_FMT_BGR24:
+ ipu_cpmem_set_format_rgb(cpmem, &def_bgr_24);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(ipu_cpmem_set_fmt);
+
+int ipu_cpmem_set_image(struct ipu_ch_param __iomem *cpmem,
+ struct ipu_image *image)
+{
+ struct v4l2_pix_format *pix = &image->pix;
+ int y_offset, u_offset, v_offset;
+
+ pr_debug("%s: resolution: %dx%d stride: %d\n",
+ __func__, pix->width, pix->height,
+ pix->bytesperline);
+
+ ipu_cpmem_set_resolution(cpmem, image->rect.width,
+ image->rect.height);
+ ipu_cpmem_set_stride(cpmem, pix->bytesperline);
+
+ ipu_cpmem_set_fmt(cpmem, pix->pixelformat);
+
+ switch (pix->pixelformat) {
+ case V4L2_PIX_FMT_YUV420:
+ y_offset = Y_OFFSET(pix, image->rect.left, image->rect.top);
+ u_offset = U_OFFSET(pix, image->rect.left,
+ image->rect.top) - y_offset;
+ v_offset = V_OFFSET(pix, image->rect.left,
+ image->rect.top) - y_offset;
+
+ ipu_cpmem_set_yuv_planar_full(cpmem, pix->pixelformat,
+ pix->bytesperline, u_offset, v_offset);
+ ipu_cpmem_set_buffer(cpmem, 0, image->phys + y_offset);
+ break;
+ case V4L2_PIX_FMT_UYVY:
+ ipu_cpmem_set_buffer(cpmem, 0, image->phys +
+ image->rect.left * 2 +
+ image->rect.top * image->pix.bytesperline);
+ break;
+ case V4L2_PIX_FMT_RGB32:
+ case V4L2_PIX_FMT_BGR32:
+ ipu_cpmem_set_buffer(cpmem, 0, image->phys +
+ image->rect.left * 4 +
+ image->rect.top * image->pix.bytesperline);
+ break;
+ case V4L2_PIX_FMT_RGB565:
+ ipu_cpmem_set_buffer(cpmem, 0, image->phys +
+ image->rect.left * 2 +
+ image->rect.top * image->pix.bytesperline);
+ break;
+ case V4L2_PIX_FMT_RGB24:
+ case V4L2_PIX_FMT_BGR24:
+ ipu_cpmem_set_buffer(cpmem, 0, image->phys +
+ image->rect.left * 3 +
+ image->rect.top * image->pix.bytesperline);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(ipu_cpmem_set_image);
+
+enum ipu_color_space ipu_pixelformat_to_colorspace(u32 pixelformat)
+{
+ switch (pixelformat) {
+ case V4L2_PIX_FMT_YUV420:
+ case V4L2_PIX_FMT_UYVY:
+ case V4L2_PIX_FMT_YVYU:
+ return IPUV3_COLORSPACE_YUV;
+ case V4L2_PIX_FMT_RGB32:
+ case V4L2_PIX_FMT_BGR32:
+ case V4L2_PIX_FMT_RGB24:
+ case V4L2_PIX_FMT_BGR24:
+ case V4L2_PIX_FMT_RGB565:
+ return IPUV3_COLORSPACE_RGB;
+ default:
+ return IPUV3_COLORSPACE_UNKNOWN;
+ }
+}
+EXPORT_SYMBOL_GPL(ipu_pixelformat_to_colorspace);
+
+struct ipuv3_channel *ipu_idmac_get(struct ipu_soc *ipu, unsigned num)
+{
+ struct ipuv3_channel *channel;
+
+ dev_dbg(ipu->dev, "%s %d\n", __func__, num);
+
+ if (num > 63)
+ return ERR_PTR(-ENODEV);
+
+ mutex_lock(&ipu->channel_lock);
+
+ channel = &ipu->channel[num];
+
+ if (channel->busy) {
+ channel = ERR_PTR(-EBUSY);
+ goto out;
+ }
+
+ channel->busy = 1;
+ channel->num = num;
+
+out:
+ mutex_unlock(&ipu->channel_lock);
+
+ return channel;
+}
+EXPORT_SYMBOL_GPL(ipu_idmac_get);
+
+void ipu_idmac_put(struct ipuv3_channel *channel)
+{
+ struct ipu_soc *ipu = channel->ipu;
+
+ dev_dbg(ipu->dev, "%s %d\n", __func__, channel->num);
+
+ mutex_lock(&ipu->channel_lock);
+
+ channel->busy = 0;
+
+ mutex_unlock(&ipu->channel_lock);
+}
+EXPORT_SYMBOL_GPL(ipu_idmac_put);
+
+#define idma_mask(ch) (1 << (ch & 0x1f))
+
+void ipu_idmac_set_double_buffer(struct ipuv3_channel *channel,
+ bool doublebuffer)
+{
+ struct ipu_soc *ipu = channel->ipu;
+ unsigned long flags;
+ u32 reg;
+
+ spin_lock_irqsave(&ipu->lock, flags);
+
+ reg = ipu_cm_read(ipu, IPU_CHA_DB_MODE_SEL(channel->num));
+ if (doublebuffer)
+ reg |= idma_mask(channel->num);
+ else
+ reg &= ~idma_mask(channel->num);
+ ipu_cm_write(ipu, reg, IPU_CHA_DB_MODE_SEL(channel->num));
+
+ spin_unlock_irqrestore(&ipu->lock, flags);
+}
+EXPORT_SYMBOL_GPL(ipu_idmac_set_double_buffer);
+
+int ipu_module_enable(struct ipu_soc *ipu, u32 mask)
+{
+ unsigned long lock_flags;
+ u32 val;
+
+ spin_lock_irqsave(&ipu->lock, lock_flags);
+
+ val = ipu_cm_read(ipu, IPU_DISP_GEN);
+
+ if (mask & IPU_CONF_DI0_EN)
+ val |= IPU_DI0_COUNTER_RELEASE;
+ if (mask & IPU_CONF_DI1_EN)
+ val |= IPU_DI1_COUNTER_RELEASE;
+
+ ipu_cm_write(ipu, val, IPU_DISP_GEN);
+
+ val = ipu_cm_read(ipu, IPU_CONF);
+ val |= mask;
+ ipu_cm_write(ipu, val, IPU_CONF);
+
+ spin_unlock_irqrestore(&ipu->lock, lock_flags);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(ipu_module_enable);
+
+int ipu_module_disable(struct ipu_soc *ipu, u32 mask)
+{
+ unsigned long lock_flags;
+ u32 val;
+
+ spin_lock_irqsave(&ipu->lock, lock_flags);
+
+ val = ipu_cm_read(ipu, IPU_CONF);
+ val &= ~mask;
+ ipu_cm_write(ipu, val, IPU_CONF);
+
+ val = ipu_cm_read(ipu, IPU_DISP_GEN);
+
+ if (mask & IPU_CONF_DI0_EN)
+ val &= ~IPU_DI0_COUNTER_RELEASE;
+ if (mask & IPU_CONF_DI1_EN)
+ val &= ~IPU_DI1_COUNTER_RELEASE;
+
+ ipu_cm_write(ipu, val, IPU_DISP_GEN);
+
+ spin_unlock_irqrestore(&ipu->lock, lock_flags);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(ipu_module_disable);
+
+void ipu_idmac_select_buffer(struct ipuv3_channel *channel, u32 buf_num)
+{
+ struct ipu_soc *ipu = channel->ipu;
+ unsigned int chno = channel->num;
+ unsigned long flags;
+
+ spin_lock_irqsave(&ipu->lock, flags);
+
+ /* Mark buffer as ready. */
+ if (buf_num == 0)
+ ipu_cm_write(ipu, idma_mask(chno), IPU_CHA_BUF0_RDY(chno));
+ else
+ ipu_cm_write(ipu, idma_mask(chno), IPU_CHA_BUF1_RDY(chno));
+
+ spin_unlock_irqrestore(&ipu->lock, flags);
+}
+EXPORT_SYMBOL_GPL(ipu_idmac_select_buffer);
+
+int ipu_idmac_enable_channel(struct ipuv3_channel *channel)
+{
+ struct ipu_soc *ipu = channel->ipu;
+ u32 val;
+ unsigned long flags;
+
+ spin_lock_irqsave(&ipu->lock, flags);
+
+ val = ipu_idmac_read(ipu, IDMAC_CHA_EN(channel->num));
+ val |= idma_mask(channel->num);
+ ipu_idmac_write(ipu, val, IDMAC_CHA_EN(channel->num));
+
+ spin_unlock_irqrestore(&ipu->lock, flags);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(ipu_idmac_enable_channel);
+
+int ipu_idmac_disable_channel(struct ipuv3_channel *channel)
+{
+ struct ipu_soc *ipu = channel->ipu;
+ u32 val;
+ unsigned long flags;
+ unsigned long timeout;
+
+ timeout = jiffies + msecs_to_jiffies(50);
+ while (ipu_idmac_read(ipu, IDMAC_CHA_BUSY(channel->num)) &
+ idma_mask(channel->num)) {
+ if (time_after(jiffies, timeout)) {
+ dev_warn(ipu->dev, "disabling busy idmac channel %d\n",
+ channel->num);
+ break;
+ }
+ cpu_relax();
+ }
+
+ spin_lock_irqsave(&ipu->lock, flags);
+
+ /* Disable DMA channel(s) */
+ val = ipu_idmac_read(ipu, IDMAC_CHA_EN(channel->num));
+ val &= ~idma_mask(channel->num);
+ ipu_idmac_write(ipu, val, IDMAC_CHA_EN(channel->num));
+
+ /* Set channel buffers NOT to be ready */
+ ipu_cm_write(ipu, 0xf0000000, IPU_GPR); /* write one to clear */
+
+ if (ipu_cm_read(ipu, IPU_CHA_BUF0_RDY(channel->num)) &
+ idma_mask(channel->num)) {
+ ipu_cm_write(ipu, idma_mask(channel->num),
+ IPU_CHA_BUF0_RDY(channel->num));
+ }
+
+ if (ipu_cm_read(ipu, IPU_CHA_BUF1_RDY(channel->num)) &
+ idma_mask(channel->num)) {
+ ipu_cm_write(ipu, idma_mask(channel->num),
+ IPU_CHA_BUF1_RDY(channel->num));
+ }
+
+ ipu_cm_write(ipu, 0x0, IPU_GPR); /* write one to set */
+
+ /* Reset the double buffer */
+ val = ipu_cm_read(ipu, IPU_CHA_DB_MODE_SEL(channel->num));
+ val &= ~idma_mask(channel->num);
+ ipu_cm_write(ipu, val, IPU_CHA_DB_MODE_SEL(channel->num));
+
+ spin_unlock_irqrestore(&ipu->lock, flags);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(ipu_idmac_disable_channel);
+
+static int ipu_reset(struct ipu_soc *ipu)
+{
+ unsigned long timeout;
+
+ ipu_cm_write(ipu, 0x807FFFFF, IPU_MEM_RST);
+
+ timeout = jiffies + msecs_to_jiffies(1000);
+ while (ipu_cm_read(ipu, IPU_MEM_RST) & 0x80000000) {
+ if (time_after(jiffies, timeout))
+ return -ETIME;
+ cpu_relax();
+ }
+
+ mdelay(300);
+
+ return 0;
+}
+
+struct ipu_devtype {
+ const char *name;
+ unsigned long cm_ofs;
+ unsigned long cpmem_ofs;
+ unsigned long srm_ofs;
+ unsigned long tpm_ofs;
+ unsigned long disp0_ofs;
+ unsigned long disp1_ofs;
+ unsigned long dc_tmpl_ofs;
+ unsigned long vdi_ofs;
+ enum ipuv3_type type;
+};
+
+static struct ipu_devtype ipu_type_imx51 = {
+ .name = "IPUv3EX",
+ .cm_ofs = 0x1e000000,
+ .cpmem_ofs = 0x1f000000,
+ .srm_ofs = 0x1f040000,
+ .tpm_ofs = 0x1f060000,
+ .disp0_ofs = 0x1e040000,
+ .disp1_ofs = 0x1e048000,
+ .dc_tmpl_ofs = 0x1f080000,
+ .vdi_ofs = 0x1e068000,
+ .type = IPUV3EX,
+};
+
+static struct ipu_devtype ipu_type_imx53 = {
+ .name = "IPUv3M",
+ .cm_ofs = 0x06000000,
+ .cpmem_ofs = 0x07000000,
+ .srm_ofs = 0x07040000,
+ .tpm_ofs = 0x07060000,
+ .disp0_ofs = 0x06040000,
+ .disp1_ofs = 0x06048000,
+ .dc_tmpl_ofs = 0x07080000,
+ .vdi_ofs = 0x06068000,
+ .type = IPUV3M,
+};
+
+static struct ipu_devtype ipu_type_imx6q = {
+ .name = "IPUv3H",
+ .cm_ofs = 0x00200000,
+ .cpmem_ofs = 0x00300000,
+ .srm_ofs = 0x00340000,
+ .tpm_ofs = 0x00360000,
+ .disp0_ofs = 0x00240000,
+ .disp1_ofs = 0x00248000,
+ .dc_tmpl_ofs = 0x00380000,
+ .vdi_ofs = 0x00268000,
+ .type = IPUV3H,
+};
+
+static const struct of_device_id imx_ipu_dt_ids[] = {
+ { .compatible = "fsl,imx51-ipu", .data = &ipu_type_imx51, },
+ { .compatible = "fsl,imx53-ipu", .data = &ipu_type_imx53, },
+ { .compatible = "fsl,imx6q-ipu", .data = &ipu_type_imx6q, },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, imx_ipu_dt_ids);
+
+static int ipu_submodules_init(struct ipu_soc *ipu,
+ struct platform_device *pdev, unsigned long ipu_base,
+ struct clk *ipu_clk)
+{
+ char *unit;
+ int ret;
+ struct device *dev = &pdev->dev;
+ const struct ipu_devtype *devtype = ipu->devtype;
+
+ ret = ipu_di_init(ipu, dev, 0, ipu_base + devtype->disp0_ofs,
+ IPU_CONF_DI0_EN, ipu_clk);
+ if (ret) {
+ unit = "di0";
+ goto err_di_0;
+ }
+
+ ret = ipu_di_init(ipu, dev, 1, ipu_base + devtype->disp1_ofs,
+ IPU_CONF_DI1_EN, ipu_clk);
+ if (ret) {
+ unit = "di1";
+ goto err_di_1;
+ }
+
+ ret = ipu_dc_init(ipu, dev, ipu_base + devtype->cm_ofs +
+ IPU_CM_DC_REG_OFS, ipu_base + devtype->dc_tmpl_ofs);
+ if (ret) {
+ unit = "dc_template";
+ goto err_dc;
+ }
+
+ ret = ipu_dmfc_init(ipu, dev, ipu_base +
+ devtype->cm_ofs + IPU_CM_DMFC_REG_OFS, ipu_clk);
+ if (ret) {
+ unit = "dmfc";
+ goto err_dmfc;
+ }
+
+ ret = ipu_dp_init(ipu, dev, ipu_base + devtype->srm_ofs);
+ if (ret) {
+ unit = "dp";
+ goto err_dp;
+ }
+
+ return 0;
+
+err_dp:
+ ipu_dmfc_exit(ipu);
+err_dmfc:
+ ipu_dc_exit(ipu);
+err_dc:
+ ipu_di_exit(ipu, 1);
+err_di_1:
+ ipu_di_exit(ipu, 0);
+err_di_0:
+ dev_err(&pdev->dev, "init %s failed with %d\n", unit, ret);
+ return ret;
+}
+
+static void ipu_irq_handle(struct ipu_soc *ipu, const int *regs, int num_regs)
+{
+ unsigned long status;
+ int i, bit, irq_base;
+
+ for (i = 0; i < num_regs; i++) {
+
+ status = ipu_cm_read(ipu, IPU_INT_STAT(regs[i]));
+ status &= ipu_cm_read(ipu, IPU_INT_CTRL(regs[i]));
+
+ irq_base = ipu->irq_start + regs[i] * 32;
+ for_each_set_bit(bit, &status, 32)
+ generic_handle_irq(irq_base + bit);
+ }
+}
+
+static void ipu_irq_handler(unsigned int irq, struct irq_desc *desc)
+{
+ struct ipu_soc *ipu = irq_desc_get_handler_data(desc);
+ const int int_reg[] = { 0, 1, 2, 3, 10, 11, 12, 13, 14};
+ struct irq_chip *chip = irq_get_chip(irq);
+
+ chained_irq_enter(chip, desc);
+
+ ipu_irq_handle(ipu, int_reg, ARRAY_SIZE(int_reg));
+
+ chained_irq_exit(chip, desc);
+}
+
+static void ipu_err_irq_handler(unsigned int irq, struct irq_desc *desc)
+{
+ struct ipu_soc *ipu = irq_desc_get_handler_data(desc);
+ const int int_reg[] = { 4, 5, 8, 9};
+ struct irq_chip *chip = irq_get_chip(irq);
+
+ chained_irq_enter(chip, desc);
+
+ ipu_irq_handle(ipu, int_reg, ARRAY_SIZE(int_reg));
+
+ chained_irq_exit(chip, desc);
+}
+
+static void ipu_ack_irq(struct irq_data *d)
+{
+ struct ipu_soc *ipu = irq_data_get_irq_chip_data(d);
+ unsigned int irq = d->irq - ipu->irq_start;
+
+ ipu_cm_write(ipu, 1 << (irq % 32), IPU_INT_STAT(irq / 32));
+}
+
+static void ipu_unmask_irq(struct irq_data *d)
+{
+ struct ipu_soc *ipu = irq_data_get_irq_chip_data(d);
+ unsigned int irq = d->irq - ipu->irq_start;
+ unsigned long flags;
+ u32 reg;
+
+ spin_lock_irqsave(&ipu->lock, flags);
+
+ reg = ipu_cm_read(ipu, IPU_INT_CTRL(irq / 32));
+ reg |= 1 << (irq % 32);
+ ipu_cm_write(ipu, reg, IPU_INT_CTRL(irq / 32));
+
+ spin_unlock_irqrestore(&ipu->lock, flags);
+}
+
+static void ipu_mask_irq(struct irq_data *d)
+{
+ struct ipu_soc *ipu = irq_data_get_irq_chip_data(d);
+ unsigned int irq = d->irq - ipu->irq_start;
+ unsigned long flags;
+ u32 reg;
+
+ spin_lock_irqsave(&ipu->lock, flags);
+
+ reg = ipu_cm_read(ipu, IPU_INT_CTRL(irq / 32));
+ reg &= ~(1 << (irq % 32));
+ ipu_cm_write(ipu, reg, IPU_INT_CTRL(irq / 32));
+
+ spin_unlock_irqrestore(&ipu->lock, flags);
+}
+
+static struct irq_chip ipu_irq_chip = {
+ .name = "IPU",
+ .irq_ack = ipu_ack_irq,
+ .irq_mask = ipu_mask_irq,
+ .irq_unmask = ipu_unmask_irq,
+};
+
+int ipu_idmac_channel_irq(struct ipu_soc *ipu, struct ipuv3_channel *channel,
+ enum ipu_channel_irq irq_type)
+{
+ return ipu->irq_start + irq_type + channel->num;
+}
+EXPORT_SYMBOL_GPL(ipu_idmac_channel_irq);
+
+static void ipu_submodules_exit(struct ipu_soc *ipu)
+{
+ ipu_dp_exit(ipu);
+ ipu_dmfc_exit(ipu);
+ ipu_dc_exit(ipu);
+ ipu_di_exit(ipu, 1);
+ ipu_di_exit(ipu, 0);
+}
+
+static int platform_remove_devices_fn(struct device *dev, void *unused)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+
+ platform_device_unregister(pdev);
+
+ return 0;
+}
+
+static void platform_device_unregister_children(struct platform_device *pdev)
+{
+ device_for_each_child(&pdev->dev, NULL, platform_remove_devices_fn);
+}
+
+struct ipu_platform_reg {
+ struct ipu_client_platformdata pdata;
+ const char *name;
+};
+
+static const struct ipu_platform_reg client_reg[] = {
+ {
+ .pdata = {
+ .di = 0,
+ .dc = 5,
+ .dp = IPU_DP_FLOW_SYNC_BG,
+ .dma[0] = IPUV3_CHANNEL_MEM_BG_SYNC,
+ .dma[1] = -EINVAL,
+ },
+ .name = "imx-ipuv3-crtc",
+ }, {
+ .pdata = {
+ .di = 1,
+ .dc = 1,
+ .dp = -EINVAL,
+ .dma[0] = IPUV3_CHANNEL_MEM_DC_SYNC,
+ .dma[1] = -EINVAL,
+ },
+ .name = "imx-ipuv3-crtc",
+ },
+};
+
+static int ipu_client_id;
+
+static int ipu_add_subdevice_pdata(struct device *dev,
+ const struct ipu_platform_reg *reg)
+{
+ struct platform_device *pdev;
+
+ pdev = platform_device_register_data(dev, reg->name, ipu_client_id++,
+ ®->pdata, sizeof(struct ipu_platform_reg));
+
+ return pdev ? 0 : -EINVAL;
+}
+
+static int ipu_add_client_devices(struct ipu_soc *ipu)
+{
+ int ret;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(client_reg); i++) {
+ const struct ipu_platform_reg *reg = &client_reg[i];
+ ret = ipu_add_subdevice_pdata(ipu->dev, reg);
+ if (ret)
+ goto err_register;
+ }
+
+ return 0;
+
+err_register:
+ platform_device_unregister_children(to_platform_device(ipu->dev));
+
+ return ret;
+}
+
+static int ipu_irq_init(struct ipu_soc *ipu)
+{
+ int i;
+
+ ipu->irq_start = irq_alloc_descs(-1, 0, IPU_NUM_IRQS, 0);
+ if (ipu->irq_start < 0)
+ return ipu->irq_start;
+
+ for (i = ipu->irq_start; i < ipu->irq_start + IPU_NUM_IRQS; i++) {
+ irq_set_chip_and_handler(i, &ipu_irq_chip, handle_level_irq);
+ set_irq_flags(i, IRQF_VALID);
+ irq_set_chip_data(i, ipu);
+ }
+
+ irq_set_chained_handler(ipu->irq_sync, ipu_irq_handler);
+ irq_set_handler_data(ipu->irq_sync, ipu);
+ irq_set_chained_handler(ipu->irq_err, ipu_err_irq_handler);
+ irq_set_handler_data(ipu->irq_err, ipu);
+
+ return 0;
+}
+
+static void ipu_irq_exit(struct ipu_soc *ipu)
+{
+ int i;
+
+ irq_set_chained_handler(ipu->irq_err, NULL);
+ irq_set_handler_data(ipu->irq_err, NULL);
+ irq_set_chained_handler(ipu->irq_sync, NULL);
+ irq_set_handler_data(ipu->irq_sync, NULL);
+
+ for (i = ipu->irq_start; i < ipu->irq_start + IPU_NUM_IRQS; i++) {
+ set_irq_flags(i, 0);
+ irq_set_chip(i, NULL);
+ irq_set_chip_data(i, NULL);
+ }
+
+ irq_free_descs(ipu->irq_start, IPU_NUM_IRQS);
+}
+
+static int __devinit ipu_probe(struct platform_device *pdev)
+{
+ const struct of_device_id *of_id =
+ of_match_device(imx_ipu_dt_ids, &pdev->dev);
+ struct ipu_soc *ipu;
+ struct resource *res;
+ unsigned long ipu_base;
+ int i, ret, irq_sync, irq_err;
+ const struct ipu_devtype *devtype;
+
+ devtype = of_id->data;
+
+ dev_info(&pdev->dev, "Initializing %s\n", devtype->name);
+
+ irq_sync = platform_get_irq(pdev, 0);
+ irq_err = platform_get_irq(pdev, 1);
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+
+ dev_info(&pdev->dev, "irq_sync: %d irq_err: %d\n",
+ irq_sync, irq_err);
+
+ if (!res || irq_sync < 0 || irq_err < 0)
+ return -ENODEV;
+
+ ipu_base = res->start;
+
+ ipu = devm_kzalloc(&pdev->dev, sizeof(*ipu), GFP_KERNEL);
+ if (!ipu)
+ return -ENODEV;
+
+ for (i = 0; i < 64; i++)
+ ipu->channel[i].ipu = ipu;
+ ipu->devtype = devtype;
+ ipu->ipu_type = devtype->type;
+
+ spin_lock_init(&ipu->lock);
+ mutex_init(&ipu->channel_lock);
+
+ dev_info(&pdev->dev, "cm_reg: 0x%08lx\n",
+ ipu_base + devtype->cm_ofs);
+ dev_info(&pdev->dev, "idmac: 0x%08lx\n",
+ ipu_base + devtype->cm_ofs + IPU_CM_IDMAC_REG_OFS);
+ dev_info(&pdev->dev, "cpmem: 0x%08lx\n",
+ ipu_base + devtype->cpmem_ofs);
+ dev_info(&pdev->dev, "disp0: 0x%08lx\n",
+ ipu_base + devtype->disp0_ofs);
+ dev_info(&pdev->dev, "disp1: 0x%08lx\n",
+ ipu_base + devtype->disp1_ofs);
+ dev_info(&pdev->dev, "srm: 0x%08lx\n",
+ ipu_base + devtype->srm_ofs);
+ dev_info(&pdev->dev, "tpm: 0x%08lx\n",
+ ipu_base + devtype->tpm_ofs);
+ dev_info(&pdev->dev, "dc: 0x%08lx\n",
+ ipu_base + devtype->cm_ofs + IPU_CM_DC_REG_OFS);
+ dev_info(&pdev->dev, "ic: 0x%08lx\n",
+ ipu_base + devtype->cm_ofs + IPU_CM_IC_REG_OFS);
+ dev_info(&pdev->dev, "dmfc: 0x%08lx\n",
+ ipu_base + devtype->cm_ofs + IPU_CM_DMFC_REG_OFS);
+ dev_info(&pdev->dev, "vdi: 0x%08lx\n",
+ ipu_base + devtype->vdi_ofs);
+
+ ipu->cm_reg = devm_ioremap(&pdev->dev,
+ ipu_base + devtype->cm_ofs, PAGE_SIZE);
+ ipu->idmac_reg = devm_ioremap(&pdev->dev,
+ ipu_base + devtype->cm_ofs + IPU_CM_IDMAC_REG_OFS,
+ PAGE_SIZE);
+ ipu->cpmem_base = devm_ioremap(&pdev->dev,
+ ipu_base + devtype->cpmem_ofs, PAGE_SIZE);
+
+ if (!ipu->cm_reg || !ipu->idmac_reg || !ipu->cpmem_base) {
+ ret = -ENOMEM;
+ goto failed_ioremap;
+ }
+
+ ipu->clk = devm_clk_get(&pdev->dev, "bus");
+ if (IS_ERR(ipu->clk)) {
+ ret = PTR_ERR(ipu->clk);
+ dev_err(&pdev->dev, "clk_get failed with %d", ret);
+ goto failed_clk_get;
+ }
+
+ platform_set_drvdata(pdev, ipu);
+
+ clk_prepare_enable(ipu->clk);
+
+ ipu->dev = &pdev->dev;
+ ipu->irq_sync = irq_sync;
+ ipu->irq_err = irq_err;
+
+ ret = ipu_irq_init(ipu);
+ if (ret)
+ goto out_failed_irq;
+
+ ipu_reset(ipu);
+
+ /* Set MCU_T to divide MCU access window into 2 */
+ ipu_cm_write(ipu, 0x00400000L | (IPU_MCU_T_DEFAULT << 18),
+ IPU_DISP_GEN);
+
+ ret = ipu_submodules_init(ipu, pdev, ipu_base, ipu->clk);
+ if (ret)
+ goto failed_submodules_init;
+
+ ret = ipu_add_client_devices(ipu);
+ if (ret) {
+ dev_err(&pdev->dev, "adding client devices failed with %d\n",
+ ret);
+ goto failed_add_clients;
+ }
+
+ return 0;
+
+failed_add_clients:
+ ipu_submodules_exit(ipu);
+failed_submodules_init:
+ ipu_irq_exit(ipu);
+out_failed_irq:
+ clk_disable_unprepare(ipu->clk);
+failed_clk_get:
+failed_ioremap:
+ return ret;
+}
+
+static int __devexit ipu_remove(struct platform_device *pdev)
+{
+ struct ipu_soc *ipu = platform_get_drvdata(pdev);
+ struct resource *res;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+
+ platform_device_unregister_children(pdev);
+ ipu_submodules_exit(ipu);
+ ipu_irq_exit(ipu);
+
+ clk_disable_unprepare(ipu->clk);
+
+ return 0;
+}
+
+static struct platform_driver imx_ipu_driver = {
+ .driver = {
+ .name = "imx-ipuv3",
+ .of_match_table = imx_ipu_dt_ids,
+ },
+ .probe = ipu_probe,
+ .remove = __devexit_p(ipu_remove),
+};
+
+module_platform_driver(imx_ipu_driver);
+
+MODULE_DESCRIPTION("i.MX IPU v3 driver");
+MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");
+MODULE_LICENSE("GPL");
--- /dev/null
+/*
+ * Copyright (c) 2010 Sascha Hauer <s.hauer@pengutronix.de>
+ * Copyright (C) 2005-2009 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ */
+
+#include <linux/export.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/delay.h>
+#include <linux/io.h>
+
+#include "imx-ipu-v3.h"
+#include "ipu-prv.h"
+
+#define DC_MAP_CONF_PTR(n) (0x108 + ((n) & ~0x1) * 2)
+#define DC_MAP_CONF_VAL(n) (0x144 + ((n) & ~0x1) * 2)
+
+#define DC_EVT_NF 0
+#define DC_EVT_NL 1
+#define DC_EVT_EOF 2
+#define DC_EVT_NFIELD 3
+#define DC_EVT_EOL 4
+#define DC_EVT_EOFIELD 5
+#define DC_EVT_NEW_ADDR 6
+#define DC_EVT_NEW_CHAN 7
+#define DC_EVT_NEW_DATA 8
+
+#define DC_EVT_NEW_ADDR_W_0 0
+#define DC_EVT_NEW_ADDR_W_1 1
+#define DC_EVT_NEW_CHAN_W_0 2
+#define DC_EVT_NEW_CHAN_W_1 3
+#define DC_EVT_NEW_DATA_W_0 4
+#define DC_EVT_NEW_DATA_W_1 5
+#define DC_EVT_NEW_ADDR_R_0 6
+#define DC_EVT_NEW_ADDR_R_1 7
+#define DC_EVT_NEW_CHAN_R_0 8
+#define DC_EVT_NEW_CHAN_R_1 9
+#define DC_EVT_NEW_DATA_R_0 10
+#define DC_EVT_NEW_DATA_R_1 11
+
+#define DC_WR_CH_CONF 0x0
+#define DC_WR_CH_ADDR 0x4
+#define DC_RL_CH(evt) (8 + ((evt) & ~0x1) * 2)
+
+#define DC_GEN 0xd4
+#define DC_DISP_CONF1(disp) (0xd8 + (disp) * 4)
+#define DC_DISP_CONF2(disp) (0xe8 + (disp) * 4)
+#define DC_STAT 0x1c8
+
+#define WROD(lf) (0x18 | ((lf) << 1))
+#define WRG 0x01
+
+#define SYNC_WAVE 0
+
+#define DC_GEN_SYNC_1_6_SYNC (2 << 1)
+#define DC_GEN_SYNC_PRIORITY_1 (1 << 7)
+
+#define DC_WR_CH_CONF_WORD_SIZE_8 (0 << 0)
+#define DC_WR_CH_CONF_WORD_SIZE_16 (1 << 0)
+#define DC_WR_CH_CONF_WORD_SIZE_24 (2 << 0)
+#define DC_WR_CH_CONF_WORD_SIZE_32 (3 << 0)
+#define DC_WR_CH_CONF_DISP_ID_PARALLEL(i) (((i) & 0x1) << 3)
+#define DC_WR_CH_CONF_DISP_ID_SERIAL (2 << 3)
+#define DC_WR_CH_CONF_DISP_ID_ASYNC (3 << 4)
+#define DC_WR_CH_CONF_FIELD_MODE (1 << 9)
+#define DC_WR_CH_CONF_PROG_TYPE_NORMAL (4 << 5)
+#define DC_WR_CH_CONF_PROG_TYPE_MASK (7 << 5)
+#define DC_WR_CH_CONF_PROG_DI_ID (1 << 2)
+#define DC_WR_CH_CONF_PROG_DISP_ID(i) (((i) & 0x1) << 3)
+
+#define IPU_DC_NUM_CHANNELS 10
+
+struct ipu_dc_priv;
+
+enum ipu_dc_map {
+ IPU_DC_MAP_RGB24,
+ IPU_DC_MAP_RGB565,
+};
+
+struct ipu_dc {
+ /* The display interface number assigned to this dc channel */
+ unsigned int di;
+ void __iomem *base;
+ struct ipu_dc_priv *priv;
+ int chno;
+ bool in_use;
+};
+
+struct ipu_dc_priv {
+ void __iomem *dc_reg;
+ void __iomem *dc_tmpl_reg;
+ struct ipu_soc *ipu;
+ struct device *dev;
+ struct ipu_dc channels[IPU_DC_NUM_CHANNELS];
+ struct mutex mutex;
+};
+
+static void dc_link_event(struct ipu_dc *dc, int event, int addr, int priority)
+{
+ u32 reg;
+
+ reg = readl(dc->base + DC_RL_CH(event));
+ reg &= ~(0xffff << (16 * (event & 0x1)));
+ reg |= ((addr << 8) | priority) << (16 * (event & 0x1));
+ writel(reg, dc->base + DC_RL_CH(event));
+}
+
+static void dc_write_tmpl(struct ipu_dc *dc, int word, u32 opcode, u32 operand,
+ int map, int wave, int glue, int sync)
+{
+ struct ipu_dc_priv *priv = dc->priv;
+ u32 reg;
+ int stop = 1;
+
+ reg = sync | glue << 4 | ++wave << 11 | ++map << 15 | ((operand << 20) & 0xfff00000);
+ writel(reg, priv->dc_tmpl_reg + word * 8);
+ reg = operand >> 12 | opcode << 4 | stop << 9;
+ writel(reg, priv->dc_tmpl_reg + word * 8 + 4);
+}
+
+static int ipu_pixfmt_to_map(u32 fmt)
+{
+ switch (fmt) {
+ case V4L2_PIX_FMT_RGB24:
+ return IPU_DC_MAP_RGB24;
+ case V4L2_PIX_FMT_RGB565:
+ return IPU_DC_MAP_RGB565;
+ default:
+ return -EINVAL;
+ }
+}
+
+int ipu_dc_init_sync(struct ipu_dc *dc, struct ipu_di *di, bool interlaced,
+ u32 pixel_fmt, u32 width)
+{
+ struct ipu_dc_priv *priv = dc->priv;
+ u32 reg = 0, map;
+
+ dc->di = ipu_di_get_num(di);
+
+ map = ipu_pixfmt_to_map(pixel_fmt);
+ if (map < 0) {
+ dev_dbg(priv->dev, "IPU_DISP: No MAP\n");
+ return -EINVAL;
+ }
+
+ if (interlaced) {
+ dc_link_event(dc, DC_EVT_NL, 0, 3);
+ dc_link_event(dc, DC_EVT_EOL, 0, 2);
+ dc_link_event(dc, DC_EVT_NEW_DATA, 0, 1);
+
+ /* Init template microcode */
+ dc_write_tmpl(dc, 0, WROD(0), 0, map, SYNC_WAVE, 0, 8);
+ } else {
+ if (dc->di) {
+ dc_link_event(dc, DC_EVT_NL, 2, 3);
+ dc_link_event(dc, DC_EVT_EOL, 3, 2);
+ dc_link_event(dc, DC_EVT_NEW_DATA, 4, 1);
+ /* Init template microcode */
+ dc_write_tmpl(dc, 2, WROD(0), 0, map, SYNC_WAVE, 8, 5);
+ dc_write_tmpl(dc, 3, WROD(0), 0, map, SYNC_WAVE, 4, 5);
+ dc_write_tmpl(dc, 4, WROD(0), 0, map, SYNC_WAVE, 0, 5);
+ } else {
+ dc_link_event(dc, DC_EVT_NL, 5, 3);
+ dc_link_event(dc, DC_EVT_EOL, 6, 2);
+ dc_link_event(dc, DC_EVT_NEW_DATA, 7, 1);
+ /* Init template microcode */
+ dc_write_tmpl(dc, 5, WROD(0), 0, map, SYNC_WAVE, 8, 5);
+ dc_write_tmpl(dc, 6, WROD(0), 0, map, SYNC_WAVE, 4, 5);
+ dc_write_tmpl(dc, 7, WROD(0), 0, map, SYNC_WAVE, 0, 5);
+ }
+ }
+ dc_link_event(dc, DC_EVT_NF, 0, 0);
+ dc_link_event(dc, DC_EVT_NFIELD, 0, 0);
+ dc_link_event(dc, DC_EVT_EOF, 0, 0);
+ dc_link_event(dc, DC_EVT_EOFIELD, 0, 0);
+ dc_link_event(dc, DC_EVT_NEW_CHAN, 0, 0);
+ dc_link_event(dc, DC_EVT_NEW_ADDR, 0, 0);
+
+ reg = readl(dc->base + DC_WR_CH_CONF);
+ if (interlaced)
+ reg |= DC_WR_CH_CONF_FIELD_MODE;
+ else
+ reg &= ~DC_WR_CH_CONF_FIELD_MODE;
+ writel(reg, dc->base + DC_WR_CH_CONF);
+
+ writel(0x0, dc->base + DC_WR_CH_ADDR);
+ writel(width, priv->dc_reg + DC_DISP_CONF2(dc->di));
+
+ ipu_module_enable(priv->ipu, IPU_CONF_DC_EN);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(ipu_dc_init_sync);
+
+void ipu_dc_enable_channel(struct ipu_dc *dc)
+{
+ int di;
+ u32 reg;
+
+ di = dc->di;
+
+ reg = readl(dc->base + DC_WR_CH_CONF);
+ reg |= DC_WR_CH_CONF_PROG_TYPE_NORMAL;
+ writel(reg, dc->base + DC_WR_CH_CONF);
+}
+EXPORT_SYMBOL_GPL(ipu_dc_enable_channel);
+
+void ipu_dc_disable_channel(struct ipu_dc *dc)
+{
+ struct ipu_dc_priv *priv = dc->priv;
+ u32 val;
+ int irq = 0, timeout = 50;
+
+ if (dc->chno == 1)
+ irq = IPU_IRQ_DC_FC_1;
+ else if (dc->chno == 5)
+ irq = IPU_IRQ_DP_SF_END;
+ else
+ return;
+
+ /* should wait for the interrupt here */
+ mdelay(50);
+
+ if (dc->di == 0)
+ val = 0x00000002;
+ else
+ val = 0x00000020;
+
+ /* Wait for DC triple buffer to empty */
+ while ((readl(priv->dc_reg + DC_STAT) & val) != val) {
+ msleep(2);
+ timeout -= 2;
+ if (timeout <= 0)
+ break;
+ }
+
+ val = readl(dc->base + DC_WR_CH_CONF);
+ val &= ~DC_WR_CH_CONF_PROG_TYPE_MASK;
+ writel(val, dc->base + DC_WR_CH_CONF);
+}
+EXPORT_SYMBOL_GPL(ipu_dc_disable_channel);
+
+static void ipu_dc_map_config(struct ipu_dc_priv *priv, enum ipu_dc_map map,
+ int byte_num, int offset, int mask)
+{
+ int ptr = map * 3 + byte_num;
+ u32 reg;
+
+ reg = readl(priv->dc_reg + DC_MAP_CONF_VAL(ptr));
+ reg &= ~(0xffff << (16 * (ptr & 0x1)));
+ reg |= ((offset << 8) | mask) << (16 * (ptr & 0x1));
+ writel(reg, priv->dc_reg + DC_MAP_CONF_VAL(ptr));
+
+ reg = readl(priv->dc_reg + DC_MAP_CONF_PTR(map));
+ reg &= ~(0x1f << ((16 * (map & 0x1)) + (5 * byte_num)));
+ reg |= ptr << ((16 * (map & 0x1)) + (5 * byte_num));
+ writel(reg, priv->dc_reg + DC_MAP_CONF_PTR(map));
+}
+
+static void ipu_dc_map_clear(struct ipu_dc_priv *priv, int map)
+{
+ u32 reg = readl(priv->dc_reg + DC_MAP_CONF_PTR(map));
+
+ writel(reg & ~(0xffff << (16 * (map & 0x1))),
+ priv->dc_reg + DC_MAP_CONF_PTR(map));
+}
+
+struct ipu_dc *ipu_dc_get(struct ipu_soc *ipu, int channel)
+{
+ struct ipu_dc_priv *priv = ipu->dc_priv;
+ struct ipu_dc *dc;
+
+ if (channel >= IPU_DC_NUM_CHANNELS)
+ return ERR_PTR(-ENODEV);
+
+ dc = &priv->channels[channel];
+
+ mutex_lock(&priv->mutex);
+
+ if (dc->in_use) {
+ mutex_unlock(&priv->mutex);
+ return ERR_PTR(-EBUSY);
+ }
+
+ dc->in_use = 1;
+
+ mutex_unlock(&priv->mutex);
+
+ return dc;
+}
+EXPORT_SYMBOL_GPL(ipu_dc_get);
+
+void ipu_dc_put(struct ipu_dc *dc)
+{
+ struct ipu_dc_priv *priv = dc->priv;
+
+ mutex_lock(&priv->mutex);
+ dc->in_use = 0;
+ mutex_unlock(&priv->mutex);
+}
+EXPORT_SYMBOL_GPL(ipu_dc_put);
+
+int ipu_dc_init(struct ipu_soc *ipu, struct device *dev,
+ unsigned long base, unsigned long template_base)
+{
+ struct ipu_dc_priv *priv;
+ static int channel_offsets[] = { 0, 0x1c, 0x38, 0x54, 0x58, 0x5c,
+ 0x78, 0, 0x94, 0xb4};
+ int i;
+
+ priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ mutex_init(&priv->mutex);
+
+ priv->dev = dev;
+ priv->ipu = ipu;
+ priv->dc_reg = devm_ioremap(dev, base, PAGE_SIZE);
+ priv->dc_tmpl_reg = devm_ioremap(dev, template_base, PAGE_SIZE);
+ if (!priv->dc_reg || !priv->dc_tmpl_reg)
+ return -ENOMEM;
+
+ for (i = 0; i < IPU_DC_NUM_CHANNELS; i++) {
+ priv->channels[i].chno = i;
+ priv->channels[i].priv = priv;
+ priv->channels[i].base = priv->dc_reg + channel_offsets[i];
+ }
+
+ writel(DC_WR_CH_CONF_WORD_SIZE_24 | DC_WR_CH_CONF_DISP_ID_PARALLEL(1) |
+ DC_WR_CH_CONF_PROG_DI_ID,
+ priv->channels[1].base + DC_WR_CH_CONF);
+ writel(DC_WR_CH_CONF_WORD_SIZE_24 | DC_WR_CH_CONF_DISP_ID_PARALLEL(0),
+ priv->channels[5].base + DC_WR_CH_CONF);
+
+ writel(DC_GEN_SYNC_1_6_SYNC | DC_GEN_SYNC_PRIORITY_1, priv->dc_reg + DC_GEN);
+
+ ipu->dc_priv = priv;
+
+ dev_dbg(dev, "DC base: 0x%08lx template base: 0x%08lx\n",
+ base, template_base);
+
+ /* rgb24 */
+ ipu_dc_map_clear(priv, IPU_DC_MAP_RGB24);
+ ipu_dc_map_config(priv, IPU_DC_MAP_RGB24, 0, 7, 0xff); /* blue */
+ ipu_dc_map_config(priv, IPU_DC_MAP_RGB24, 1, 15, 0xff); /* green */
+ ipu_dc_map_config(priv, IPU_DC_MAP_RGB24, 2, 23, 0xff); /* red */
+
+ /* rgb565 */
+ ipu_dc_map_clear(priv, IPU_DC_MAP_RGB565);
+ ipu_dc_map_config(priv, IPU_DC_MAP_RGB565, 0, 4, 0xf8); /* blue */
+ ipu_dc_map_config(priv, IPU_DC_MAP_RGB565, 1, 10, 0xfc); /* green */
+ ipu_dc_map_config(priv, IPU_DC_MAP_RGB565, 2, 15, 0xf8); /* red */
+
+ return 0;
+}
+
+void ipu_dc_exit(struct ipu_soc *ipu)
+{
+}
--- /dev/null
+/*
+ * Copyright (c) 2010 Sascha Hauer <s.hauer@pengutronix.de>
+ * Copyright (C) 2005-2009 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ */
+#include <linux/export.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/io.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+#include <linux/clk-provider.h>
+#include <linux/clkdev.h>
+
+#include "imx-ipu-v3.h"
+#include "ipu-prv.h"
+
+struct ipu_di {
+ void __iomem *base;
+ int id;
+ u32 module;
+ struct clk *clk_di; /* display input clock */
+ struct clk *clk_ipu; /* IPU bus clock */
+ struct clk *clk_di_pixel; /* resulting pixel clock */
+ struct clk_hw clk_hw_out;
+ char *clk_name;
+ bool inuse;
+ unsigned long clkflags;
+ struct ipu_soc *ipu;
+};
+
+static DEFINE_MUTEX(di_mutex);
+
+struct di_sync_config {
+ int run_count;
+ int run_src;
+ int offset_count;
+ int offset_src;
+ int repeat_count;
+ int cnt_clr_src;
+ int cnt_polarity_gen_en;
+ int cnt_polarity_clr_src;
+ int cnt_polarity_trigger_src;
+ int cnt_up;
+ int cnt_down;
+};
+
+enum di_pins {
+ DI_PIN11 = 0,
+ DI_PIN12 = 1,
+ DI_PIN13 = 2,
+ DI_PIN14 = 3,
+ DI_PIN15 = 4,
+ DI_PIN16 = 5,
+ DI_PIN17 = 6,
+ DI_PIN_CS = 7,
+
+ DI_PIN_SER_CLK = 0,
+ DI_PIN_SER_RS = 1,
+};
+
+enum di_sync_wave {
+ DI_SYNC_NONE = 0,
+ DI_SYNC_CLK = 1,
+ DI_SYNC_INT_HSYNC = 2,
+ DI_SYNC_HSYNC = 3,
+ DI_SYNC_VSYNC = 4,
+ DI_SYNC_DE = 6,
+};
+
+#define SYNC_WAVE 0
+
+#define DI_GENERAL 0x0000
+#define DI_BS_CLKGEN0 0x0004
+#define DI_BS_CLKGEN1 0x0008
+#define DI_SW_GEN0(gen) (0x000c + 4 * ((gen) - 1))
+#define DI_SW_GEN1(gen) (0x0030 + 4 * ((gen) - 1))
+#define DI_STP_REP(gen) (0x0148 + 4 * (((gen) - 1)/2))
+#define DI_SYNC_AS_GEN 0x0054
+#define DI_DW_GEN(gen) (0x0058 + 4 * (gen))
+#define DI_DW_SET(gen, set) (0x0088 + 4 * ((gen) + 0xc * (set)))
+#define DI_SER_CONF 0x015c
+#define DI_SSC 0x0160
+#define DI_POL 0x0164
+#define DI_AW0 0x0168
+#define DI_AW1 0x016c
+#define DI_SCR_CONF 0x0170
+#define DI_STAT 0x0174
+
+#define DI_SW_GEN0_RUN_COUNT(x) ((x) << 19)
+#define DI_SW_GEN0_RUN_SRC(x) ((x) << 16)
+#define DI_SW_GEN0_OFFSET_COUNT(x) ((x) << 3)
+#define DI_SW_GEN0_OFFSET_SRC(x) ((x) << 0)
+
+#define DI_SW_GEN1_CNT_POL_GEN_EN(x) ((x) << 29)
+#define DI_SW_GEN1_CNT_CLR_SRC(x) ((x) << 25)
+#define DI_SW_GEN1_CNT_POL_TRIGGER_SRC(x) ((x) << 12)
+#define DI_SW_GEN1_CNT_POL_CLR_SRC(x) ((x) << 9)
+#define DI_SW_GEN1_CNT_DOWN(x) ((x) << 16)
+#define DI_SW_GEN1_CNT_UP(x) (x)
+#define DI_SW_GEN1_AUTO_RELOAD (0x10000000)
+
+#define DI_DW_GEN_ACCESS_SIZE_OFFSET 24
+#define DI_DW_GEN_COMPONENT_SIZE_OFFSET 16
+
+#define DI_GEN_POLARITY_1 (1 << 0)
+#define DI_GEN_POLARITY_2 (1 << 1)
+#define DI_GEN_POLARITY_3 (1 << 2)
+#define DI_GEN_POLARITY_4 (1 << 3)
+#define DI_GEN_POLARITY_5 (1 << 4)
+#define DI_GEN_POLARITY_6 (1 << 5)
+#define DI_GEN_POLARITY_7 (1 << 6)
+#define DI_GEN_POLARITY_8 (1 << 7)
+#define DI_GEN_POLARITY_DISP_CLK (1 << 17)
+#define DI_GEN_DI_CLK_EXT (1 << 20)
+#define DI_GEN_DI_VSYNC_EXT (1 << 21)
+
+#define DI_POL_DRDY_DATA_POLARITY (1 << 7)
+#define DI_POL_DRDY_POLARITY_15 (1 << 4)
+
+#define DI_VSYNC_SEL_OFFSET 13
+
+static inline u32 ipu_di_read(struct ipu_di *di, unsigned offset)
+{
+ return readl(di->base + offset);
+}
+
+static inline void ipu_di_write(struct ipu_di *di, u32 value, unsigned offset)
+{
+ writel(value, di->base + offset);
+}
+
+static int ipu_di_clk_calc_div(unsigned long inrate, unsigned long outrate)
+{
+ u64 tmp = inrate;
+ int div;
+
+ tmp *= 16;
+
+ do_div(tmp, outrate);
+
+ div = tmp;
+
+ if (div < 0x10)
+ div = 0x10;
+
+#ifdef WTF_IS_THIS
+ /*
+ * Freescale has this in their Kernel. It is neither clear what
+ * it does nor why it does it
+ */
+ if (div & 0x10)
+ div &= ~0x7;
+ else {
+ /* Round up divider if it gets us closer to desired pix clk */
+ if ((div & 0xC) == 0xC) {
+ div += 0x10;
+ div &= ~0xF;
+ }
+ }
+#endif
+ return div;
+}
+
+static unsigned long clk_di_recalc_rate(struct clk_hw *hw,
+ unsigned long parent_rate)
+{
+ struct ipu_di *di = container_of(hw, struct ipu_di, clk_hw_out);
+ unsigned long outrate;
+ u32 div = ipu_di_read(di, DI_BS_CLKGEN0);
+
+ if (div < 0x10)
+ div = 0x10;
+
+ outrate = (parent_rate / div) * 16;
+
+ return outrate;
+}
+
+static long clk_di_round_rate(struct clk_hw *hw, unsigned long rate,
+ unsigned long *prate)
+{
+ struct ipu_di *di = container_of(hw, struct ipu_di, clk_hw_out);
+ unsigned long outrate;
+ int div;
+ u32 val;
+
+ div = ipu_di_clk_calc_div(*prate, rate);
+
+ outrate = (*prate / div) * 16;
+
+ val = ipu_di_read(di, DI_GENERAL);
+
+ if (!(val & DI_GEN_DI_CLK_EXT) && outrate > *prate / 2)
+ outrate = *prate / 2;
+
+ dev_dbg(di->ipu->dev,
+ "%s: inrate: %ld div: 0x%08x outrate: %ld wanted: %ld\n",
+ __func__, *prate, div, outrate, rate);
+
+ return outrate;
+}
+
+static int clk_di_set_rate(struct clk_hw *hw, unsigned long rate,
+ unsigned long parent_rate)
+{
+ struct ipu_di *di = container_of(hw, struct ipu_di, clk_hw_out);
+ int div;
+ u32 clkgen0;
+
+ clkgen0 = ipu_di_read(di, DI_BS_CLKGEN0) & ~0xfff;
+
+ div = ipu_di_clk_calc_div(parent_rate, rate);
+
+ ipu_di_write(di, clkgen0 | div, DI_BS_CLKGEN0);
+
+ dev_dbg(di->ipu->dev, "%s: inrate: %ld desired: %ld div: 0x%08x\n",
+ __func__, parent_rate, rate, div);
+ return 0;
+}
+
+static u8 clk_di_get_parent(struct clk_hw *hw)
+{
+ struct ipu_di *di = container_of(hw, struct ipu_di, clk_hw_out);
+ u32 val;
+
+ val = ipu_di_read(di, DI_GENERAL);
+
+ return val & DI_GEN_DI_CLK_EXT ? 1 : 0;
+}
+
+static int clk_di_set_parent(struct clk_hw *hw, u8 index)
+{
+ struct ipu_di *di = container_of(hw, struct ipu_di, clk_hw_out);
+ u32 val;
+
+ val = ipu_di_read(di, DI_GENERAL);
+
+ if (index)
+ val |= DI_GEN_DI_CLK_EXT;
+ else
+ val &= ~DI_GEN_DI_CLK_EXT;
+
+ ipu_di_write(di, val, DI_GENERAL);
+
+ return 0;
+}
+
+static struct clk_ops clk_di_ops = {
+ .round_rate = clk_di_round_rate,
+ .set_rate = clk_di_set_rate,
+ .recalc_rate = clk_di_recalc_rate,
+ .set_parent = clk_di_set_parent,
+ .get_parent = clk_di_get_parent,
+};
+
+static void ipu_di_data_wave_config(struct ipu_di *di,
+ int wave_gen,
+ int access_size, int component_size)
+{
+ u32 reg;
+ reg = (access_size << DI_DW_GEN_ACCESS_SIZE_OFFSET) |
+ (component_size << DI_DW_GEN_COMPONENT_SIZE_OFFSET);
+ ipu_di_write(di, reg, DI_DW_GEN(wave_gen));
+}
+
+static void ipu_di_data_pin_config(struct ipu_di *di, int wave_gen, int di_pin,
+ int set, int up, int down)
+{
+ u32 reg;
+
+ reg = ipu_di_read(di, DI_DW_GEN(wave_gen));
+ reg &= ~(0x3 << (di_pin * 2));
+ reg |= set << (di_pin * 2);
+ ipu_di_write(di, reg, DI_DW_GEN(wave_gen));
+
+ ipu_di_write(di, (down << 16) | up, DI_DW_SET(wave_gen, set));
+}
+
+static void ipu_di_sync_config(struct ipu_di *di, struct di_sync_config *config,
+ int start, int count)
+{
+ u32 reg;
+ int i;
+
+ for (i = 0; i < count; i++) {
+ struct di_sync_config *c = &config[i];
+ int wave_gen = start + i + 1;
+
+ if ((c->run_count >= 0x1000) || (c->offset_count >= 0x1000) ||
+ (c->repeat_count >= 0x1000) ||
+ (c->cnt_up >= 0x400) ||
+ (c->cnt_down >= 0x400)) {
+ dev_err(di->ipu->dev, "DI%d counters out of range.\n",
+ di->id);
+ return;
+ }
+
+ reg = DI_SW_GEN0_RUN_COUNT(c->run_count) |
+ DI_SW_GEN0_RUN_SRC(c->run_src) |
+ DI_SW_GEN0_OFFSET_COUNT(c->offset_count) |
+ DI_SW_GEN0_OFFSET_SRC(c->offset_src);
+ ipu_di_write(di, reg, DI_SW_GEN0(wave_gen));
+
+ reg = DI_SW_GEN1_CNT_POL_GEN_EN(c->cnt_polarity_gen_en) |
+ DI_SW_GEN1_CNT_CLR_SRC(c->cnt_clr_src) |
+ DI_SW_GEN1_CNT_POL_TRIGGER_SRC(
+ c->cnt_polarity_trigger_src) |
+ DI_SW_GEN1_CNT_POL_CLR_SRC(c->cnt_polarity_clr_src) |
+ DI_SW_GEN1_CNT_DOWN(c->cnt_down) |
+ DI_SW_GEN1_CNT_UP(c->cnt_up);
+
+ /* Enable auto reload */
+ if (c->repeat_count == 0)
+ reg |= DI_SW_GEN1_AUTO_RELOAD;
+
+ ipu_di_write(di, reg, DI_SW_GEN1(wave_gen));
+
+ reg = ipu_di_read(di, DI_STP_REP(wave_gen));
+ reg &= ~(0xffff << (16 * ((wave_gen - 1) & 0x1)));
+ reg |= c->repeat_count << (16 * ((wave_gen - 1) & 0x1));
+ ipu_di_write(di, reg, DI_STP_REP(wave_gen));
+ }
+}
+
+static void ipu_di_sync_config_interlaced(struct ipu_di *di,
+ struct ipu_di_signal_cfg *sig)
+{
+ u32 h_total = sig->width + sig->h_sync_width +
+ sig->h_start_width + sig->h_end_width;
+ u32 v_total = sig->height + sig->v_sync_width +
+ sig->v_start_width + sig->v_end_width;
+ u32 reg;
+ struct di_sync_config cfg[] = {
+ {
+ .run_count = h_total / 2 - 1,
+ .run_src = DI_SYNC_CLK,
+ }, {
+ .run_count = h_total - 11,
+ .run_src = DI_SYNC_CLK,
+ .cnt_down = 4,
+ }, {
+ .run_count = v_total * 2 - 1,
+ .run_src = DI_SYNC_INT_HSYNC,
+ .offset_count = 1,
+ .offset_src = DI_SYNC_INT_HSYNC,
+ .cnt_down = 4,
+ }, {
+ .run_count = v_total / 2 - 1,
+ .run_src = DI_SYNC_HSYNC,
+ .offset_count = sig->v_start_width,
+ .offset_src = DI_SYNC_HSYNC,
+ .repeat_count = 2,
+ .cnt_clr_src = DI_SYNC_VSYNC,
+ }, {
+ .run_src = DI_SYNC_HSYNC,
+ .repeat_count = sig->height / 2,
+ .cnt_clr_src = 4,
+ }, {
+ .run_count = v_total - 1,
+ .run_src = DI_SYNC_HSYNC,
+ }, {
+ .run_count = v_total / 2 - 1,
+ .run_src = DI_SYNC_HSYNC,
+ .offset_count = 9,
+ .offset_src = DI_SYNC_HSYNC,
+ .repeat_count = 2,
+ .cnt_clr_src = DI_SYNC_VSYNC,
+ }, {
+ .run_src = DI_SYNC_CLK,
+ .offset_count = sig->h_start_width,
+ .offset_src = DI_SYNC_CLK,
+ .repeat_count = sig->width,
+ .cnt_clr_src = 5,
+ }, {
+ .run_count = v_total - 1,
+ .run_src = DI_SYNC_INT_HSYNC,
+ .offset_count = v_total / 2,
+ .offset_src = DI_SYNC_INT_HSYNC,
+ .cnt_clr_src = DI_SYNC_HSYNC,
+ .cnt_down = 4,
+ }
+ };
+
+ ipu_di_sync_config(di, cfg, 0, ARRAY_SIZE(cfg));
+
+ /* set gentime select and tag sel */
+ reg = ipu_di_read(di, DI_SW_GEN1(9));
+ reg &= 0x1FFFFFFF;
+ reg |= (3 - 1) << 29 | 0x00008000;
+ ipu_di_write(di, reg, DI_SW_GEN1(9));
+
+ ipu_di_write(di, v_total / 2 - 1, DI_SCR_CONF);
+}
+
+static void ipu_di_sync_config_noninterlaced(struct ipu_di *di,
+ struct ipu_di_signal_cfg *sig, int div)
+{
+ u32 h_total = sig->width + sig->h_sync_width + sig->h_start_width +
+ sig->h_end_width;
+ u32 v_total = sig->height + sig->v_sync_width + sig->v_start_width +
+ sig->v_end_width;
+ struct di_sync_config cfg[] = {
+ {
+ .run_count = h_total - 1,
+ .run_src = DI_SYNC_CLK,
+ } , {
+ .run_count = h_total - 1,
+ .run_src = DI_SYNC_CLK,
+ .offset_count = div * sig->v_to_h_sync,
+ .offset_src = DI_SYNC_CLK,
+ .cnt_polarity_gen_en = 1,
+ .cnt_polarity_trigger_src = DI_SYNC_CLK,
+ .cnt_down = sig->h_sync_width * 2,
+ } , {
+ .run_count = v_total - 1,
+ .run_src = DI_SYNC_INT_HSYNC,
+ .cnt_polarity_gen_en = 1,
+ .cnt_polarity_trigger_src = DI_SYNC_INT_HSYNC,
+ .cnt_down = sig->v_sync_width * 2,
+ } , {
+ .run_src = DI_SYNC_HSYNC,
+ .offset_count = sig->v_sync_width + sig->v_start_width,
+ .offset_src = DI_SYNC_HSYNC,
+ .repeat_count = sig->height,
+ .cnt_clr_src = DI_SYNC_VSYNC,
+ } , {
+ .run_src = DI_SYNC_CLK,
+ .offset_count = sig->h_sync_width + sig->h_start_width,
+ .offset_src = DI_SYNC_CLK,
+ .repeat_count = sig->width,
+ .cnt_clr_src = 5,
+ } , {
+ /* unused */
+ } , {
+ /* unused */
+ } , {
+ /* unused */
+ } , {
+ /* unused */
+ },
+ };
+
+ ipu_di_write(di, v_total - 1, DI_SCR_CONF);
+ ipu_di_sync_config(di, cfg, 0, ARRAY_SIZE(cfg));
+}
+
+int ipu_di_init_sync_panel(struct ipu_di *di, struct ipu_di_signal_cfg *sig)
+{
+ u32 reg;
+ u32 di_gen, vsync_cnt;
+ u32 div;
+ u32 h_total, v_total;
+ int ret;
+ unsigned long round;
+ struct clk *parent;
+
+ dev_dbg(di->ipu->dev, "disp %d: panel size = %d x %d\n",
+ di->id, sig->width, sig->height);
+
+ if ((sig->v_sync_width == 0) || (sig->h_sync_width == 0))
+ return -EINVAL;
+
+ if (sig->clkflags & IPU_DI_CLKMODE_EXT)
+ parent = di->clk_di;
+ else
+ parent = di->clk_ipu;
+
+ ret = clk_set_parent(di->clk_di_pixel, parent);
+ if (ret) {
+ dev_err(di->ipu->dev,
+ "setting pixel clock to parent %s failed with %d\n",
+ __clk_get_name(parent), ret);
+ return ret;
+ }
+
+ if (sig->clkflags & IPU_DI_CLKMODE_SYNC)
+ round = clk_get_rate(parent);
+ else
+ round = clk_round_rate(di->clk_di_pixel, sig->pixelclock);
+
+ ret = clk_set_rate(di->clk_di_pixel, round);
+
+ h_total = sig->width + sig->h_sync_width + sig->h_start_width +
+ sig->h_end_width;
+ v_total = sig->height + sig->v_sync_width + sig->v_start_width +
+ sig->v_end_width;
+
+ mutex_lock(&di_mutex);
+
+ div = ipu_di_read(di, DI_BS_CLKGEN0) & 0xfff;
+ div = div / 16; /* Now divider is integer portion */
+
+ /* Setup pixel clock timing */
+ /* Down time is half of period */
+ ipu_di_write(di, (div << 16), DI_BS_CLKGEN1);
+
+ ipu_di_data_wave_config(di, SYNC_WAVE, div - 1, div - 1);
+ ipu_di_data_pin_config(di, SYNC_WAVE, DI_PIN15, 3, 0, div * 2);
+
+ di_gen = ipu_di_read(di, DI_GENERAL) & DI_GEN_DI_CLK_EXT;
+ di_gen |= DI_GEN_DI_VSYNC_EXT;
+
+ if (sig->interlaced) {
+ ipu_di_sync_config_interlaced(di, sig);
+
+ /* set y_sel = 1 */
+ di_gen |= 0x10000000;
+ di_gen |= DI_GEN_POLARITY_5;
+ di_gen |= DI_GEN_POLARITY_8;
+
+ vsync_cnt = 7;
+
+ if (sig->Hsync_pol)
+ di_gen |= DI_GEN_POLARITY_3;
+ if (sig->Vsync_pol)
+ di_gen |= DI_GEN_POLARITY_2;
+ } else {
+ ipu_di_sync_config_noninterlaced(di, sig, div);
+
+ vsync_cnt = 3;
+
+ if (sig->Hsync_pol)
+ di_gen |= DI_GEN_POLARITY_2;
+ if (sig->Vsync_pol)
+ di_gen |= DI_GEN_POLARITY_3;
+ }
+
+ if (!sig->clk_pol)
+ di_gen |= DI_GEN_POLARITY_DISP_CLK;
+
+ ipu_di_write(di, di_gen, DI_GENERAL);
+
+ ipu_di_write(di, (--vsync_cnt << DI_VSYNC_SEL_OFFSET) | 0x00000002,
+ DI_SYNC_AS_GEN);
+
+ reg = ipu_di_read(di, DI_POL);
+ reg &= ~(DI_POL_DRDY_DATA_POLARITY | DI_POL_DRDY_POLARITY_15);
+
+ if (sig->enable_pol)
+ reg |= DI_POL_DRDY_POLARITY_15;
+ if (sig->data_pol)
+ reg |= DI_POL_DRDY_DATA_POLARITY;
+
+ ipu_di_write(di, reg, DI_POL);
+
+ mutex_unlock(&di_mutex);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(ipu_di_init_sync_panel);
+
+int ipu_di_enable(struct ipu_di *di)
+{
+ clk_prepare_enable(di->clk_di_pixel);
+
+ ipu_module_enable(di->ipu, di->module);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(ipu_di_enable);
+
+int ipu_di_disable(struct ipu_di *di)
+{
+ ipu_module_disable(di->ipu, di->module);
+
+ clk_disable_unprepare(di->clk_di_pixel);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(ipu_di_disable);
+
+int ipu_di_get_num(struct ipu_di *di)
+{
+ return di->id;
+}
+EXPORT_SYMBOL_GPL(ipu_di_get_num);
+
+static DEFINE_MUTEX(ipu_di_lock);
+
+struct ipu_di *ipu_di_get(struct ipu_soc *ipu, int disp)
+{
+ struct ipu_di *di;
+
+ if (disp > 1)
+ return ERR_PTR(-EINVAL);
+
+ di = ipu->di_priv[disp];
+
+ mutex_lock(&ipu_di_lock);
+
+ if (di->inuse) {
+ di = ERR_PTR(-EBUSY);
+ goto out;
+ }
+
+ di->inuse = true;
+out:
+ mutex_unlock(&ipu_di_lock);
+
+ return di;
+}
+EXPORT_SYMBOL_GPL(ipu_di_get);
+
+void ipu_di_put(struct ipu_di *di)
+{
+ mutex_lock(&ipu_di_lock);
+
+ di->inuse = false;
+
+ mutex_unlock(&ipu_di_lock);
+}
+EXPORT_SYMBOL_GPL(ipu_di_put);
+
+int ipu_di_init(struct ipu_soc *ipu, struct device *dev, int id,
+ unsigned long base,
+ u32 module, struct clk *clk_ipu)
+{
+ struct ipu_di *di;
+ int ret;
+ const char *di_parent[2];
+ struct clk_init_data init = {
+ .ops = &clk_di_ops,
+ .num_parents = 2,
+ .flags = 0,
+ };
+
+ if (id > 1)
+ return -ENODEV;
+
+ di = devm_kzalloc(dev, sizeof(*di), GFP_KERNEL);
+ if (!di)
+ return -ENOMEM;
+
+ ipu->di_priv[id] = di;
+
+ di->clk_di = devm_clk_get(dev, id ? "di1" : "di0");
+ if (IS_ERR(di->clk_di))
+ return PTR_ERR(di->clk_di);
+
+ di->module = module;
+ di->id = id;
+ di->clk_ipu = clk_ipu;
+ di->base = devm_ioremap(dev, base, PAGE_SIZE);
+ if (!di->base)
+ return -ENOMEM;
+
+ di_parent[0] = __clk_get_name(di->clk_ipu);
+ di_parent[1] = __clk_get_name(di->clk_di);
+
+ ipu_di_write(di, 0x10, DI_BS_CLKGEN0);
+
+ init.parent_names = (const char **)&di_parent;
+ di->clk_name = kasprintf(GFP_KERNEL, "%s_di%d_pixel",
+ dev_name(dev), id);
+ if (!di->clk_name)
+ return -ENOMEM;
+
+ init.name = di->clk_name;
+
+ di->clk_hw_out.init = &init;
+ di->clk_di_pixel = clk_register(dev, &di->clk_hw_out);
+
+ if (IS_ERR(di->clk_di_pixel)) {
+ ret = PTR_ERR(di->clk_di_pixel);
+ goto failed_clk_register;
+ }
+
+ dev_info(dev, "DI%d base: 0x%08lx remapped to %p\n",
+ id, base, di->base);
+ di->inuse = false;
+ di->ipu = ipu;
+
+ return 0;
+
+failed_clk_register:
+
+ kfree(di->clk_name);
+
+ return ret;
+}
+
+void ipu_di_exit(struct ipu_soc *ipu, int id)
+{
+ struct ipu_di *di = ipu->di_priv[id];
+
+ clk_unregister(di->clk_di_pixel);
+ kfree(di->clk_name);
+}
--- /dev/null
+/*
+ * Copyright (c) 2010 Sascha Hauer <s.hauer@pengutronix.de>
+ * Copyright (C) 2005-2009 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ */
+#include <linux/export.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/io.h>
+
+#include "imx-ipu-v3.h"
+#include "ipu-prv.h"
+
+#define DMFC_RD_CHAN 0x0000
+#define DMFC_WR_CHAN 0x0004
+#define DMFC_WR_CHAN_DEF 0x0008
+#define DMFC_DP_CHAN 0x000c
+#define DMFC_DP_CHAN_DEF 0x0010
+#define DMFC_GENERAL1 0x0014
+#define DMFC_GENERAL2 0x0018
+#define DMFC_IC_CTRL 0x001c
+#define DMFC_STAT 0x0020
+
+#define DMFC_WR_CHAN_1_28 0
+#define DMFC_WR_CHAN_2_41 8
+#define DMFC_WR_CHAN_1C_42 16
+#define DMFC_WR_CHAN_2C_43 24
+
+#define DMFC_DP_CHAN_5B_23 0
+#define DMFC_DP_CHAN_5F_27 8
+#define DMFC_DP_CHAN_6B_24 16
+#define DMFC_DP_CHAN_6F_29 24
+
+#define DMFC_FIFO_SIZE_64 (3 << 3)
+#define DMFC_FIFO_SIZE_128 (2 << 3)
+#define DMFC_FIFO_SIZE_256 (1 << 3)
+#define DMFC_FIFO_SIZE_512 (0 << 3)
+
+#define DMFC_SEGMENT(x) ((x & 0x7) << 0)
+#define DMFC_BURSTSIZE_128 (0 << 6)
+#define DMFC_BURSTSIZE_64 (1 << 6)
+#define DMFC_BURSTSIZE_32 (2 << 6)
+#define DMFC_BURSTSIZE_16 (3 << 6)
+
+struct dmfc_channel_data {
+ int ipu_channel;
+ unsigned long channel_reg;
+ unsigned long shift;
+ unsigned eot_shift;
+ unsigned max_fifo_lines;
+};
+
+static const struct dmfc_channel_data dmfcdata[] = {
+ {
+ .ipu_channel = 23,
+ .channel_reg = DMFC_DP_CHAN,
+ .shift = DMFC_DP_CHAN_5B_23,
+ .eot_shift = 20,
+ .max_fifo_lines = 3,
+ }, {
+ .ipu_channel = 24,
+ .channel_reg = DMFC_DP_CHAN,
+ .shift = DMFC_DP_CHAN_6B_24,
+ .eot_shift = 22,
+ .max_fifo_lines = 1,
+ }, {
+ .ipu_channel = 27,
+ .channel_reg = DMFC_DP_CHAN,
+ .shift = DMFC_DP_CHAN_5F_27,
+ .eot_shift = 21,
+ .max_fifo_lines = 2,
+ }, {
+ .ipu_channel = 28,
+ .channel_reg = DMFC_WR_CHAN,
+ .shift = DMFC_WR_CHAN_1_28,
+ .eot_shift = 16,
+ .max_fifo_lines = 2,
+ }, {
+ .ipu_channel = 29,
+ .channel_reg = DMFC_DP_CHAN,
+ .shift = DMFC_DP_CHAN_6F_29,
+ .eot_shift = 23,
+ .max_fifo_lines = 1,
+ },
+};
+
+#define DMFC_NUM_CHANNELS ARRAY_SIZE(dmfcdata)
+
+struct ipu_dmfc_priv;
+
+struct dmfc_channel {
+ unsigned slots;
+ unsigned slotmask;
+ unsigned segment;
+ int burstsize;
+ struct ipu_soc *ipu;
+ struct ipu_dmfc_priv *priv;
+ const struct dmfc_channel_data *data;
+};
+
+struct ipu_dmfc_priv {
+ struct ipu_soc *ipu;
+ struct device *dev;
+ struct dmfc_channel channels[DMFC_NUM_CHANNELS];
+ struct mutex mutex;
+ unsigned long bandwidth_per_slot;
+ void __iomem *base;
+ int use_count;
+};
+
+int ipu_dmfc_enable_channel(struct dmfc_channel *dmfc)
+{
+ struct ipu_dmfc_priv *priv = dmfc->priv;
+ mutex_lock(&priv->mutex);
+
+ if (!priv->use_count)
+ ipu_module_enable(priv->ipu, IPU_CONF_DMFC_EN);
+
+ priv->use_count++;
+
+ mutex_unlock(&priv->mutex);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(ipu_dmfc_enable_channel);
+
+void ipu_dmfc_disable_channel(struct dmfc_channel *dmfc)
+{
+ struct ipu_dmfc_priv *priv = dmfc->priv;
+
+ mutex_lock(&priv->mutex);
+
+ priv->use_count--;
+
+ if (!priv->use_count)
+ ipu_module_disable(priv->ipu, IPU_CONF_DMFC_EN);
+
+ if (priv->use_count < 0)
+ priv->use_count = 0;
+
+ mutex_unlock(&priv->mutex);
+}
+EXPORT_SYMBOL_GPL(ipu_dmfc_disable_channel);
+
+static int ipu_dmfc_setup_channel(struct dmfc_channel *dmfc, int slots,
+ int segment, int burstsize)
+{
+ struct ipu_dmfc_priv *priv = dmfc->priv;
+ u32 val, field;
+
+ dev_dbg(priv->dev,
+ "dmfc: using %d slots starting from segment %d for IPU channel %d\n",
+ slots, segment, dmfc->data->ipu_channel);
+
+ if (!dmfc)
+ return -EINVAL;
+
+ switch (slots) {
+ case 1:
+ field = DMFC_FIFO_SIZE_64;
+ break;
+ case 2:
+ field = DMFC_FIFO_SIZE_128;
+ break;
+ case 4:
+ field = DMFC_FIFO_SIZE_256;
+ break;
+ case 8:
+ field = DMFC_FIFO_SIZE_512;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ switch (burstsize) {
+ case 16:
+ field |= DMFC_BURSTSIZE_16;
+ break;
+ case 32:
+ field |= DMFC_BURSTSIZE_32;
+ break;
+ case 64:
+ field |= DMFC_BURSTSIZE_64;
+ break;
+ case 128:
+ field |= DMFC_BURSTSIZE_128;
+ break;
+ }
+
+ field |= DMFC_SEGMENT(segment);
+
+ val = readl(priv->base + dmfc->data->channel_reg);
+
+ val &= ~(0xff << dmfc->data->shift);
+ val |= field << dmfc->data->shift;
+
+ writel(val, priv->base + dmfc->data->channel_reg);
+
+ dmfc->slots = slots;
+ dmfc->segment = segment;
+ dmfc->burstsize = burstsize;
+ dmfc->slotmask = ((1 << slots) - 1) << segment;
+
+ return 0;
+}
+
+static int dmfc_bandwidth_to_slots(struct ipu_dmfc_priv *priv,
+ unsigned long bandwidth)
+{
+ int slots = 1;
+
+ while (slots * priv->bandwidth_per_slot < bandwidth)
+ slots *= 2;
+
+ return slots;
+}
+
+static int dmfc_find_slots(struct ipu_dmfc_priv *priv, int slots)
+{
+ unsigned slotmask_need, slotmask_used = 0;
+ int i, segment = 0;
+
+ slotmask_need = (1 << slots) - 1;
+
+ for (i = 0; i < DMFC_NUM_CHANNELS; i++)
+ slotmask_used |= priv->channels[i].slotmask;
+
+ while (slotmask_need <= 0xff) {
+ if (!(slotmask_used & slotmask_need))
+ return segment;
+
+ slotmask_need <<= 1;
+ segment++;
+ }
+
+ return -EBUSY;
+}
+
+void ipu_dmfc_free_bandwidth(struct dmfc_channel *dmfc)
+{
+ struct ipu_dmfc_priv *priv = dmfc->priv;
+ int i;
+
+ dev_dbg(priv->dev, "dmfc: freeing %d slots starting from segment %d\n",
+ dmfc->slots, dmfc->segment);
+
+ mutex_lock(&priv->mutex);
+
+ if (!dmfc->slots)
+ goto out;
+
+ dmfc->slotmask = 0;
+ dmfc->slots = 0;
+ dmfc->segment = 0;
+
+ for (i = 0; i < DMFC_NUM_CHANNELS; i++)
+ priv->channels[i].slotmask = 0;
+
+ for (i = 0; i < DMFC_NUM_CHANNELS; i++) {
+ if (priv->channels[i].slots > 0) {
+ priv->channels[i].segment =
+ dmfc_find_slots(priv, priv->channels[i].slots);
+ priv->channels[i].slotmask =
+ ((1 << priv->channels[i].slots) - 1) <<
+ priv->channels[i].segment;
+ }
+ }
+
+ for (i = 0; i < DMFC_NUM_CHANNELS; i++) {
+ if (priv->channels[i].slots > 0)
+ ipu_dmfc_setup_channel(&priv->channels[i],
+ priv->channels[i].slots,
+ priv->channels[i].segment,
+ priv->channels[i].burstsize);
+ }
+out:
+ mutex_unlock(&priv->mutex);
+}
+EXPORT_SYMBOL_GPL(ipu_dmfc_free_bandwidth);
+
+int ipu_dmfc_alloc_bandwidth(struct dmfc_channel *dmfc,
+ unsigned long bandwidth_pixel_per_second, int burstsize)
+{
+ struct ipu_dmfc_priv *priv = dmfc->priv;
+ int slots = dmfc_bandwidth_to_slots(priv, bandwidth_pixel_per_second);
+ int segment = 0, ret = 0;
+
+ dev_dbg(priv->dev, "dmfc: trying to allocate %ldMpixel/s for IPU channel %d\n",
+ bandwidth_pixel_per_second / 1000000,
+ dmfc->data->ipu_channel);
+
+ ipu_dmfc_free_bandwidth(dmfc);
+
+ mutex_lock(&priv->mutex);
+
+ if (slots > 8) {
+ ret = -EBUSY;
+ goto out;
+ }
+
+ segment = dmfc_find_slots(priv, slots);
+ if (segment < 0) {
+ ret = -EBUSY;
+ goto out;
+ }
+
+ ipu_dmfc_setup_channel(dmfc, slots, segment, burstsize);
+
+out:
+ mutex_unlock(&priv->mutex);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(ipu_dmfc_alloc_bandwidth);
+
+int ipu_dmfc_init_channel(struct dmfc_channel *dmfc, int width)
+{
+ struct ipu_dmfc_priv *priv = dmfc->priv;
+ u32 dmfc_gen1;
+
+ dmfc_gen1 = readl(priv->base + DMFC_GENERAL1);
+
+ if ((dmfc->slots * 64 * 4) / width > dmfc->data->max_fifo_lines)
+ dmfc_gen1 |= 1 << dmfc->data->eot_shift;
+ else
+ dmfc_gen1 &= ~(1 << dmfc->data->eot_shift);
+
+ writel(dmfc_gen1, priv->base + DMFC_GENERAL1);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(ipu_dmfc_init_channel);
+
+struct dmfc_channel *ipu_dmfc_get(struct ipu_soc *ipu, int ipu_channel)
+{
+ struct ipu_dmfc_priv *priv = ipu->dmfc_priv;
+ int i;
+
+ for (i = 0; i < DMFC_NUM_CHANNELS; i++)
+ if (dmfcdata[i].ipu_channel == ipu_channel)
+ return &priv->channels[i];
+ return ERR_PTR(-ENODEV);
+}
+EXPORT_SYMBOL_GPL(ipu_dmfc_get);
+
+void ipu_dmfc_put(struct dmfc_channel *dmfc)
+{
+ ipu_dmfc_free_bandwidth(dmfc);
+}
+EXPORT_SYMBOL_GPL(ipu_dmfc_put);
+
+int ipu_dmfc_init(struct ipu_soc *ipu, struct device *dev, unsigned long base,
+ struct clk *ipu_clk)
+{
+ struct ipu_dmfc_priv *priv;
+ int i;
+
+ priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ priv->base = devm_ioremap(dev, base, PAGE_SIZE);
+ if (!priv->base)
+ return -ENOMEM;
+
+ priv->dev = dev;
+ priv->ipu = ipu;
+ mutex_init(&priv->mutex);
+
+ ipu->dmfc_priv = priv;
+
+ for (i = 0; i < DMFC_NUM_CHANNELS; i++) {
+ priv->channels[i].priv = priv;
+ priv->channels[i].ipu = ipu;
+ priv->channels[i].data = &dmfcdata[i];
+ }
+
+ writel(0x0, priv->base + DMFC_WR_CHAN);
+ writel(0x0, priv->base + DMFC_DP_CHAN);
+
+ /*
+ * We have a total bandwidth of clkrate * 4pixel divided
+ * into 8 slots.
+ */
+ priv->bandwidth_per_slot = clk_get_rate(ipu_clk) / 8;
+
+ dev_dbg(dev, "dmfc: 8 slots with %ldMpixel/s bandwidth each\n",
+ priv->bandwidth_per_slot / 1000000);
+
+ writel(0x202020f6, priv->base + DMFC_WR_CHAN_DEF);
+ writel(0x2020f6f6, priv->base + DMFC_DP_CHAN_DEF);
+ writel(0x00000003, priv->base + DMFC_GENERAL1);
+
+ return 0;
+}
+
+void ipu_dmfc_exit(struct ipu_soc *ipu)
+{
+}
--- /dev/null
+/*
+ * Copyright (c) 2010 Sascha Hauer <s.hauer@pengutronix.de>
+ * Copyright (C) 2005-2009 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ */
+#include <linux/export.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/io.h>
+#include <linux/err.h>
+
+#include "imx-ipu-v3.h"
+#include "ipu-prv.h"
+
+#define DP_SYNC 0
+#define DP_ASYNC0 0x60
+#define DP_ASYNC1 0xBC
+
+#define DP_COM_CONF 0x0
+#define DP_GRAPH_WIND_CTRL 0x0004
+#define DP_FG_POS 0x0008
+#define DP_CSC_A_0 0x0044
+#define DP_CSC_A_1 0x0048
+#define DP_CSC_A_2 0x004C
+#define DP_CSC_A_3 0x0050
+#define DP_CSC_0 0x0054
+#define DP_CSC_1 0x0058
+
+#define DP_COM_CONF_FG_EN (1 << 0)
+#define DP_COM_CONF_GWSEL (1 << 1)
+#define DP_COM_CONF_GWAM (1 << 2)
+#define DP_COM_CONF_GWCKE (1 << 3)
+#define DP_COM_CONF_CSC_DEF_MASK (3 << 8)
+#define DP_COM_CONF_CSC_DEF_OFFSET 8
+#define DP_COM_CONF_CSC_DEF_FG (3 << 8)
+#define DP_COM_CONF_CSC_DEF_BG (2 << 8)
+#define DP_COM_CONF_CSC_DEF_BOTH (1 << 8)
+
+struct ipu_dp_priv;
+
+struct ipu_dp {
+ u32 flow;
+ bool in_use;
+ bool foreground;
+ enum ipu_color_space in_cs;
+};
+
+struct ipu_flow {
+ struct ipu_dp foreground;
+ struct ipu_dp background;
+ enum ipu_color_space out_cs;
+ void __iomem *base;
+ struct ipu_dp_priv *priv;
+};
+
+struct ipu_dp_priv {
+ struct ipu_soc *ipu;
+ struct device *dev;
+ void __iomem *base;
+ struct ipu_flow flow[3];
+ struct mutex mutex;
+ int use_count;
+};
+
+static u32 ipu_dp_flow_base[] = {DP_SYNC, DP_ASYNC0, DP_ASYNC1};
+
+static inline struct ipu_flow *to_flow(struct ipu_dp *dp)
+{
+ if (dp->foreground)
+ return container_of(dp, struct ipu_flow, foreground);
+ else
+ return container_of(dp, struct ipu_flow, background);
+}
+
+int ipu_dp_set_global_alpha(struct ipu_dp *dp, bool enable,
+ u8 alpha, bool bg_chan)
+{
+ struct ipu_flow *flow = to_flow(dp);
+ struct ipu_dp_priv *priv = flow->priv;
+ u32 reg;
+
+ mutex_lock(&priv->mutex);
+
+ reg = readl(flow->base + DP_COM_CONF);
+ if (bg_chan)
+ reg &= ~DP_COM_CONF_GWSEL;
+ else
+ reg |= DP_COM_CONF_GWSEL;
+ writel(reg, flow->base + DP_COM_CONF);
+
+ if (enable) {
+ reg = readl(flow->base + DP_GRAPH_WIND_CTRL) & 0x00FFFFFFL;
+ writel(reg | ((u32) alpha << 24),
+ flow->base + DP_GRAPH_WIND_CTRL);
+
+ reg = readl(flow->base + DP_COM_CONF);
+ writel(reg | DP_COM_CONF_GWAM, flow->base + DP_COM_CONF);
+ } else {
+ reg = readl(flow->base + DP_COM_CONF);
+ writel(reg & ~DP_COM_CONF_GWAM, flow->base + DP_COM_CONF);
+ }
+
+ ipu_srm_dp_sync_update(priv->ipu);
+
+ mutex_unlock(&priv->mutex);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(ipu_dp_set_global_alpha);
+
+int ipu_dp_set_window_pos(struct ipu_dp *dp, u16 x_pos, u16 y_pos)
+{
+ struct ipu_flow *flow = to_flow(dp);
+ struct ipu_dp_priv *priv = flow->priv;
+
+ writel((x_pos << 16) | y_pos, flow->base + DP_FG_POS);
+
+ ipu_srm_dp_sync_update(priv->ipu);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(ipu_dp_set_window_pos);
+
+static void ipu_dp_csc_init(struct ipu_flow *flow,
+ enum ipu_color_space in,
+ enum ipu_color_space out,
+ u32 place)
+{
+ u32 reg;
+
+ reg = readl(flow->base + DP_COM_CONF);
+ reg &= ~DP_COM_CONF_CSC_DEF_MASK;
+
+ if (in == out) {
+ writel(reg, flow->base + DP_COM_CONF);
+ return;
+ }
+
+ if (in == IPUV3_COLORSPACE_RGB && out == IPUV3_COLORSPACE_YUV) {
+ writel(0x099 | (0x12d << 16), flow->base + DP_CSC_A_0);
+ writel(0x03a | (0x3a9 << 16), flow->base + DP_CSC_A_1);
+ writel(0x356 | (0x100 << 16), flow->base + DP_CSC_A_2);
+ writel(0x100 | (0x329 << 16), flow->base + DP_CSC_A_3);
+ writel(0x3d6 | (0x0000 << 16) | (2 << 30),
+ flow->base + DP_CSC_0);
+ writel(0x200 | (2 << 14) | (0x200 << 16) | (2 << 30),
+ flow->base + DP_CSC_1);
+ } else {
+ writel(0x095 | (0x000 << 16), flow->base + DP_CSC_A_0);
+ writel(0x0cc | (0x095 << 16), flow->base + DP_CSC_A_1);
+ writel(0x3ce | (0x398 << 16), flow->base + DP_CSC_A_2);
+ writel(0x095 | (0x0ff << 16), flow->base + DP_CSC_A_3);
+ writel(0x000 | (0x3e42 << 16) | (1 << 30),
+ flow->base + DP_CSC_0);
+ writel(0x10a | (1 << 14) | (0x3dd6 << 16) | (1 << 30),
+ flow->base + DP_CSC_1);
+ }
+
+ reg |= place;
+
+ writel(reg, flow->base + DP_COM_CONF);
+}
+
+int ipu_dp_setup_channel(struct ipu_dp *dp,
+ enum ipu_color_space in,
+ enum ipu_color_space out)
+{
+ struct ipu_flow *flow = to_flow(dp);
+ struct ipu_dp_priv *priv = flow->priv;
+
+ mutex_lock(&priv->mutex);
+
+ dp->in_cs = in;
+
+ if (!dp->foreground)
+ flow->out_cs = out;
+
+ if (flow->foreground.in_cs == flow->background.in_cs) {
+ /*
+ * foreground and background are of same colorspace, put
+ * colorspace converter after combining unit.
+ */
+ ipu_dp_csc_init(flow, flow->foreground.in_cs, flow->out_cs,
+ DP_COM_CONF_CSC_DEF_BOTH);
+ } else {
+ if (flow->foreground.in_cs == flow->out_cs)
+ /*
+ * foreground identical to output, apply color
+ * conversion on background
+ */
+ ipu_dp_csc_init(flow, flow->background.in_cs,
+ flow->out_cs, DP_COM_CONF_CSC_DEF_BG);
+ else
+ ipu_dp_csc_init(flow, flow->foreground.in_cs,
+ flow->out_cs, DP_COM_CONF_CSC_DEF_FG);
+ }
+
+ ipu_srm_dp_sync_update(priv->ipu);
+
+ mutex_unlock(&priv->mutex);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(ipu_dp_setup_channel);
+
+int ipu_dp_enable_channel(struct ipu_dp *dp)
+{
+ struct ipu_flow *flow = to_flow(dp);
+ struct ipu_dp_priv *priv = flow->priv;
+
+ mutex_lock(&priv->mutex);
+
+ if (!priv->use_count)
+ ipu_module_enable(priv->ipu, IPU_CONF_DP_EN);
+
+ priv->use_count++;
+
+ if (dp->foreground) {
+ u32 reg;
+
+ reg = readl(flow->base + DP_COM_CONF);
+ reg |= DP_COM_CONF_FG_EN;
+ writel(reg, flow->base + DP_COM_CONF);
+
+ ipu_srm_dp_sync_update(priv->ipu);
+ }
+
+ mutex_unlock(&priv->mutex);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(ipu_dp_enable_channel);
+
+void ipu_dp_disable_channel(struct ipu_dp *dp)
+{
+ struct ipu_flow *flow = to_flow(dp);
+ struct ipu_dp_priv *priv = flow->priv;
+
+ mutex_lock(&priv->mutex);
+
+ priv->use_count--;
+
+ if (dp->foreground) {
+ u32 reg, csc;
+
+ reg = readl(flow->base + DP_COM_CONF);
+ csc = reg & DP_COM_CONF_CSC_DEF_MASK;
+ if (csc == DP_COM_CONF_CSC_DEF_FG)
+ reg &= ~DP_COM_CONF_CSC_DEF_MASK;
+
+ reg &= ~DP_COM_CONF_FG_EN;
+ writel(reg, flow->base + DP_COM_CONF);
+
+ writel(0, flow->base + DP_FG_POS);
+ ipu_srm_dp_sync_update(priv->ipu);
+ }
+
+ if (!priv->use_count)
+ ipu_module_disable(priv->ipu, IPU_CONF_DP_EN);
+
+ if (priv->use_count < 0)
+ priv->use_count = 0;
+
+ mutex_unlock(&priv->mutex);
+}
+EXPORT_SYMBOL_GPL(ipu_dp_disable_channel);
+
+struct ipu_dp *ipu_dp_get(struct ipu_soc *ipu, unsigned int flow)
+{
+ struct ipu_dp_priv *priv = ipu->dp_priv;
+ struct ipu_dp *dp;
+
+ if (flow > 5)
+ return ERR_PTR(-EINVAL);
+
+ if (flow & 1)
+ dp = &priv->flow[flow >> 1].foreground;
+ else
+ dp = &priv->flow[flow >> 1].background;
+
+ if (dp->in_use)
+ return ERR_PTR(-EBUSY);
+
+ dp->in_use = true;
+
+ return dp;
+}
+EXPORT_SYMBOL_GPL(ipu_dp_get);
+
+void ipu_dp_put(struct ipu_dp *dp)
+{
+ dp->in_use = false;
+}
+EXPORT_SYMBOL_GPL(ipu_dp_put);
+
+int ipu_dp_init(struct ipu_soc *ipu, struct device *dev, unsigned long base)
+{
+ struct ipu_dp_priv *priv;
+ int i;
+
+ priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+ priv->dev = dev;
+ priv->ipu = ipu;
+
+ ipu->dp_priv = priv;
+
+ priv->base = devm_ioremap(dev, base, PAGE_SIZE);
+ if (!priv->base) {
+ kfree(priv);
+ return -ENOMEM;
+ }
+
+ mutex_init(&priv->mutex);
+
+ for (i = 0; i < 3; i++) {
+ priv->flow[i].foreground.foreground = 1;
+ priv->flow[i].base = priv->base + ipu_dp_flow_base[i];
+ priv->flow[i].priv = priv;
+ }
+
+ return 0;
+}
+
+void ipu_dp_exit(struct ipu_soc *ipu)
+{
+}
--- /dev/null
+/*
+ * Copyright (c) 2010 Sascha Hauer <s.hauer@pengutronix.de>
+ * Copyright (C) 2005-2009 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ */
+#ifndef __IPU_PRV_H__
+#define __IPU_PRV_H__
+
+struct ipu_soc;
+
+#include <linux/types.h>
+#include <linux/device.h>
+#include <linux/clk.h>
+#include <linux/platform_device.h>
+
+#include "imx-ipu-v3.h"
+
+#define IPUV3_CHANNEL_CSI0 0
+#define IPUV3_CHANNEL_CSI1 1
+#define IPUV3_CHANNEL_CSI2 2
+#define IPUV3_CHANNEL_CSI3 3
+#define IPUV3_CHANNEL_MEM_BG_SYNC 23
+#define IPUV3_CHANNEL_MEM_FG_SYNC 27
+#define IPUV3_CHANNEL_MEM_DC_SYNC 28
+#define IPUV3_CHANNEL_MEM_FG_SYNC_ALPHA 31
+#define IPUV3_CHANNEL_MEM_DC_ASYNC 41
+#define IPUV3_CHANNEL_ROT_ENC_MEM 45
+#define IPUV3_CHANNEL_ROT_VF_MEM 46
+#define IPUV3_CHANNEL_ROT_PP_MEM 47
+#define IPUV3_CHANNEL_ROT_ENC_MEM_OUT 48
+#define IPUV3_CHANNEL_ROT_VF_MEM_OUT 49
+#define IPUV3_CHANNEL_ROT_PP_MEM_OUT 50
+#define IPUV3_CHANNEL_MEM_BG_SYNC_ALPHA 51
+
+#define IPU_MCU_T_DEFAULT 8
+#define IPU_CM_IDMAC_REG_OFS 0x00008000
+#define IPU_CM_IC_REG_OFS 0x00020000
+#define IPU_CM_IRT_REG_OFS 0x00028000
+#define IPU_CM_CSI0_REG_OFS 0x00030000
+#define IPU_CM_CSI1_REG_OFS 0x00038000
+#define IPU_CM_SMFC_REG_OFS 0x00050000
+#define IPU_CM_DC_REG_OFS 0x00058000
+#define IPU_CM_DMFC_REG_OFS 0x00060000
+
+/* Register addresses */
+/* IPU Common registers */
+#define IPU_CM_REG(offset) (offset)
+
+#define IPU_CONF IPU_CM_REG(0)
+
+#define IPU_SRM_PRI1 IPU_CM_REG(0x00a0)
+#define IPU_SRM_PRI2 IPU_CM_REG(0x00a4)
+#define IPU_FS_PROC_FLOW1 IPU_CM_REG(0x00a8)
+#define IPU_FS_PROC_FLOW2 IPU_CM_REG(0x00ac)
+#define IPU_FS_PROC_FLOW3 IPU_CM_REG(0x00b0)
+#define IPU_FS_DISP_FLOW1 IPU_CM_REG(0x00b4)
+#define IPU_FS_DISP_FLOW2 IPU_CM_REG(0x00b8)
+#define IPU_SKIP IPU_CM_REG(0x00bc)
+#define IPU_DISP_ALT_CONF IPU_CM_REG(0x00c0)
+#define IPU_DISP_GEN IPU_CM_REG(0x00c4)
+#define IPU_DISP_ALT1 IPU_CM_REG(0x00c8)
+#define IPU_DISP_ALT2 IPU_CM_REG(0x00cc)
+#define IPU_DISP_ALT3 IPU_CM_REG(0x00d0)
+#define IPU_DISP_ALT4 IPU_CM_REG(0x00d4)
+#define IPU_SNOOP IPU_CM_REG(0x00d8)
+#define IPU_MEM_RST IPU_CM_REG(0x00dc)
+#define IPU_PM IPU_CM_REG(0x00e0)
+#define IPU_GPR IPU_CM_REG(0x00e4)
+#define IPU_CHA_DB_MODE_SEL(ch) IPU_CM_REG(0x0150 + 4 * ((ch) / 32))
+#define IPU_ALT_CHA_DB_MODE_SEL(ch) IPU_CM_REG(0x0168 + 4 * ((ch) / 32))
+#define IPU_CHA_CUR_BUF(ch) IPU_CM_REG(0x023C + 4 * ((ch) / 32))
+#define IPU_ALT_CUR_BUF0 IPU_CM_REG(0x0244)
+#define IPU_ALT_CUR_BUF1 IPU_CM_REG(0x0248)
+#define IPU_SRM_STAT IPU_CM_REG(0x024C)
+#define IPU_PROC_TASK_STAT IPU_CM_REG(0x0250)
+#define IPU_DISP_TASK_STAT IPU_CM_REG(0x0254)
+#define IPU_CHA_BUF0_RDY(ch) IPU_CM_REG(0x0268 + 4 * ((ch) / 32))
+#define IPU_CHA_BUF1_RDY(ch) IPU_CM_REG(0x0270 + 4 * ((ch) / 32))
+#define IPU_ALT_CHA_BUF0_RDY(ch) IPU_CM_REG(0x0278 + 4 * ((ch) / 32))
+#define IPU_ALT_CHA_BUF1_RDY(ch) IPU_CM_REG(0x0280 + 4 * ((ch) / 32))
+
+#define IPU_INT_CTRL(n) IPU_CM_REG(0x003C + 4 * (n))
+#define IPU_INT_STAT(n) IPU_CM_REG(0x0200 + 4 * (n))
+
+#define IPU_DI0_COUNTER_RELEASE (1 << 24)
+#define IPU_DI1_COUNTER_RELEASE (1 << 25)
+
+#define IPU_IDMAC_REG(offset) (offset)
+
+#define IDMAC_CONF IPU_IDMAC_REG(0x0000)
+#define IDMAC_CHA_EN(ch) IPU_IDMAC_REG(0x0004 + 4 * ((ch) / 32))
+#define IDMAC_SEP_ALPHA IPU_IDMAC_REG(0x000c)
+#define IDMAC_ALT_SEP_ALPHA IPU_IDMAC_REG(0x0010)
+#define IDMAC_CHA_PRI(ch) IPU_IDMAC_REG(0x0014 + 4 * ((ch) / 32))
+#define IDMAC_WM_EN(ch) IPU_IDMAC_REG(0x001c + 4 * ((ch) / 32))
+#define IDMAC_CH_LOCK_EN_1 IPU_IDMAC_REG(0x0024)
+#define IDMAC_CH_LOCK_EN_2 IPU_IDMAC_REG(0x0028)
+#define IDMAC_SUB_ADDR_0 IPU_IDMAC_REG(0x002c)
+#define IDMAC_SUB_ADDR_1 IPU_IDMAC_REG(0x0030)
+#define IDMAC_SUB_ADDR_2 IPU_IDMAC_REG(0x0034)
+#define IDMAC_BAND_EN(ch) IPU_IDMAC_REG(0x0040 + 4 * ((ch) / 32))
+#define IDMAC_CHA_BUSY(ch) IPU_IDMAC_REG(0x0100 + 4 * ((ch) / 32))
+
+#define IPU_NUM_IRQS (32 * 5)
+
+enum ipu_modules {
+ IPU_CONF_CSI0_EN = (1 << 0),
+ IPU_CONF_CSI1_EN = (1 << 1),
+ IPU_CONF_IC_EN = (1 << 2),
+ IPU_CONF_ROT_EN = (1 << 3),
+ IPU_CONF_ISP_EN = (1 << 4),
+ IPU_CONF_DP_EN = (1 << 5),
+ IPU_CONF_DI0_EN = (1 << 6),
+ IPU_CONF_DI1_EN = (1 << 7),
+ IPU_CONF_SMFC_EN = (1 << 8),
+ IPU_CONF_DC_EN = (1 << 9),
+ IPU_CONF_DMFC_EN = (1 << 10),
+
+ IPU_CONF_VDI_EN = (1 << 12),
+
+ IPU_CONF_IDMAC_DIS = (1 << 22),
+
+ IPU_CONF_IC_DMFC_SEL = (1 << 25),
+ IPU_CONF_IC_DMFC_SYNC = (1 << 26),
+ IPU_CONF_VDI_DMFC_SYNC = (1 << 27),
+
+ IPU_CONF_CSI0_DATA_SOURCE = (1 << 28),
+ IPU_CONF_CSI1_DATA_SOURCE = (1 << 29),
+ IPU_CONF_IC_INPUT = (1 << 30),
+ IPU_CONF_CSI_SEL = (1 << 31),
+};
+
+struct ipuv3_channel {
+ unsigned int num;
+
+ bool enabled;
+ bool busy;
+
+ struct ipu_soc *ipu;
+};
+
+struct ipu_dc_priv;
+struct ipu_dmfc_priv;
+struct ipu_di;
+struct ipu_devtype;
+
+struct ipu_soc {
+ struct device *dev;
+ const struct ipu_devtype *devtype;
+ enum ipuv3_type ipu_type;
+ spinlock_t lock;
+ struct mutex channel_lock;
+
+ void __iomem *cm_reg;
+ void __iomem *idmac_reg;
+ struct ipu_ch_param __iomem *cpmem_base;
+
+ int usecount;
+
+ struct clk *clk;
+
+ struct ipuv3_channel channel[64];
+
+ int irq_start;
+ int irq_sync;
+ int irq_err;
+
+ struct ipu_dc_priv *dc_priv;
+ struct ipu_dp_priv *dp_priv;
+ struct ipu_dmfc_priv *dmfc_priv;
+ struct ipu_di *di_priv[2];
+};
+
+void ipu_srm_dp_sync_update(struct ipu_soc *ipu);
+
+int ipu_module_enable(struct ipu_soc *ipu, u32 mask);
+int ipu_module_disable(struct ipu_soc *ipu, u32 mask);
+
+int ipu_di_init(struct ipu_soc *ipu, struct device *dev, int id,
+ unsigned long base, u32 module, struct clk *ipu_clk);
+void ipu_di_exit(struct ipu_soc *ipu, int id);
+
+int ipu_dmfc_init(struct ipu_soc *ipu, struct device *dev, unsigned long base,
+ struct clk *ipu_clk);
+void ipu_dmfc_exit(struct ipu_soc *ipu);
+
+int ipu_dp_init(struct ipu_soc *ipu, struct device *dev, unsigned long base);
+void ipu_dp_exit(struct ipu_soc *ipu);
+
+int ipu_dc_init(struct ipu_soc *ipu, struct device *dev, unsigned long base,
+ unsigned long template_base);
+void ipu_dc_exit(struct ipu_soc *ipu);
+
+int ipu_cpmem_init(struct ipu_soc *ipu, struct device *dev, unsigned long base);
+void ipu_cpmem_exit(struct ipu_soc *ipu);
+
+#endif /* __IPU_PRV_H__ */
projects / profile / ivi / kernel-adaptation-intel-automotive.git / commitdiff