--- /dev/null
+/*
+ * Copyright (c) 2017, Fuzhou Rockchip Electronics Co., Ltd
+ * Author: Eric Gao <eric.gao@rock-chips.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <clk.h>
+#include <display.h>
+#include <dm.h>
+#include <fdtdec.h>
+#include <panel.h>
+#include <regmap.h>
+#include "rk_mipi.h"
+#include <syscon.h>
+#include <asm/gpio.h>
+#include <asm/hardware.h>
+#include <asm/io.h>
+#include <dm/uclass-internal.h>
+#include <linux/kernel.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/cru_rk3399.h>
+#include <asm/arch/grf_rk3399.h>
+#include <asm/arch/rockchip_mipi_dsi.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/* Select mipi dsi source, big or little vop */
+static int rk_mipi_dsi_source_select(struct udevice *dev)
+{
+ struct rk_mipi_priv *priv = dev_get_priv(dev);
+ struct rk3399_grf_regs *grf = priv->grf;
+ struct display_plat *disp_uc_plat = dev_get_uclass_platdata(dev);
+
+ /* Select the video source */
+ switch (disp_uc_plat->source_id) {
+ case VOP_B:
+ rk_clrsetreg(&grf->soc_con20, GRF_DSI0_VOP_SEL_MASK,
+ GRF_DSI0_VOP_SEL_B << GRF_DSI0_VOP_SEL_SHIFT);
+ break;
+ case VOP_L:
+ rk_clrsetreg(&grf->soc_con20, GRF_DSI0_VOP_SEL_MASK,
+ GRF_DSI0_VOP_SEL_L << GRF_DSI0_VOP_SEL_SHIFT);
+ break;
+ default:
+ debug("%s: Invalid VOP id\n", __func__);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/* Setup mipi dphy working mode */
+static void rk_mipi_dphy_mode_set(struct udevice *dev)
+{
+ struct rk_mipi_priv *priv = dev_get_priv(dev);
+ struct rk3399_grf_regs *grf = priv->grf;
+ int val;
+
+ /* Set Controller as TX mode */
+ val = GRF_DPHY_TX0_RXMODE_DIS << GRF_DPHY_TX0_RXMODE_SHIFT;
+ rk_clrsetreg(&grf->soc_con22, GRF_DPHY_TX0_RXMODE_MASK, val);
+
+ /* Exit tx stop mode */
+ val |= GRF_DPHY_TX0_TXSTOPMODE_DIS << GRF_DPHY_TX0_TXSTOPMODE_SHIFT;
+ rk_clrsetreg(&grf->soc_con22, GRF_DPHY_TX0_TXSTOPMODE_MASK, val);
+
+ /* Disable turnequest */
+ val |= GRF_DPHY_TX0_TURNREQUEST_DIS << GRF_DPHY_TX0_TURNREQUEST_SHIFT;
+ rk_clrsetreg(&grf->soc_con22, GRF_DPHY_TX0_TURNREQUEST_MASK, val);
+}
+
+/*
+ * This function is called by rk_display_init() using rk_mipi_dsi_enable() and
+ * rk_mipi_phy_enable() to initialize mipi controller and dphy. If success,
+ * enable backlight.
+ */
+static int rk_display_enable(struct udevice *dev, int panel_bpp,
+ const struct display_timing *timing)
+{
+ int ret;
+ struct rk_mipi_priv *priv = dev_get_priv(dev);
+
+ /* Fill the mipi controller parameter */
+ priv->ref_clk = 24 * MHz;
+ priv->sys_clk = priv->ref_clk;
+ priv->pix_clk = timing->pixelclock.typ;
+ priv->phy_clk = priv->pix_clk * 6;
+ priv->txbyte_clk = priv->phy_clk / 8;
+ priv->txesc_clk = 20 * MHz;
+
+ /* Select vop port, big or little */
+ rk_mipi_dsi_source_select(dev);
+
+ /* Set mipi dphy work mode */
+ rk_mipi_dphy_mode_set(dev);
+
+ /* Config and enable mipi dsi according to timing */
+ ret = rk_mipi_dsi_enable(dev, timing);
+ if (ret) {
+ debug("%s: rk_mipi_dsi_enable() failed (err=%d)\n",
+ __func__, ret);
+ return ret;
+ }
+
+ /* Config and enable mipi phy */
+ ret = rk_mipi_phy_enable(dev);
+ if (ret) {
+ debug("%s: rk_mipi_phy_enable() failed (err=%d)\n",
+ __func__, ret);
+ return ret;
+ }
+
+ /* Enable backlight */
+ ret = panel_enable_backlight(priv->panel);
+ if (ret) {
+ debug("%s: panel_enable_backlight() failed (err=%d)\n",
+ __func__, ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int rk_mipi_ofdata_to_platdata(struct udevice *dev)
+{
+ struct rk_mipi_priv *priv = dev_get_priv(dev);
+
+ priv->grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF);
+ if (priv->grf <= 0) {
+ debug("%s: Get syscon grf failed (ret=%p)\n",
+ __func__, priv->grf);
+ return -ENXIO;
+ }
+ priv->regs = dev_read_addr(dev);
+ if (priv->regs == FDT_ADDR_T_NONE) {
+ debug("%s: Get MIPI dsi address failed\n", __func__);
+ return -ENXIO;
+ }
+
+ return 0;
+}
+
+/*
+ * Probe function: check panel existence and readingit's timing. Then config
+ * mipi dsi controller and enable it according to the timing parameter.
+ */
+static int rk_mipi_probe(struct udevice *dev)
+{
+ int ret;
+ struct rk_mipi_priv *priv = dev_get_priv(dev);
+
+ ret = uclass_get_device_by_phandle(UCLASS_PANEL, dev, "rockchip,panel",
+ &priv->panel);
+ if (ret) {
+ debug("%s: Can not find panel (err=%d)\n", __func__, ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static const struct dm_display_ops rk_mipi_dsi_ops = {
+ .read_timing = rk_mipi_read_timing,
+ .enable = rk_display_enable,
+};
+
+static const struct udevice_id rk_mipi_dsi_ids[] = {
+ { .compatible = "rockchip,rk3399_mipi_dsi" },
+ { }
+};
+
+U_BOOT_DRIVER(rk_mipi_dsi) = {
+ .name = "rk_mipi_dsi",
+ .id = UCLASS_DISPLAY,
+ .of_match = rk_mipi_dsi_ids,
+ .ofdata_to_platdata = rk_mipi_ofdata_to_platdata,
+ .probe = rk_mipi_probe,
+ .ops = &rk_mipi_dsi_ops,
+ .priv_auto_alloc_size = sizeof(struct rk_mipi_priv),
+};
#include <fdtdec.h>
#include <panel.h>
#include <regmap.h>
+#include "rk_mipi.h"
#include <syscon.h>
#include <asm/gpio.h>
#include <asm/hardware.h>
#include <asm/arch/cru_rk3399.h>
#include <asm/arch/grf_rk3399.h>
#include <asm/arch/rockchip_mipi_dsi.h>
-#include <dt-bindings/clock/rk3288-cru.h>
DECLARE_GLOBAL_DATA_PTR;
-/*
- * Private information for rk mipi
- *
- * @regs: mipi controller address
- * @grf: GRF register
- * @panel: panel assined by device tree
- * @ref_clk: reference clock for mipi dsi pll
- * @sysclk: config clock for mipi dsi register
- * @pix_clk: pixel clock for vop->dsi data transmission
- * @phy_clk: mipi dphy output clock
- * @txbyte_clk: clock for dsi->dphy high speed data transmission
- * @txesc_clk: clock for tx esc mode
- */
-struct rk_mipi_priv {
- uintptr_t regs;
- struct rk3399_grf_regs *grf;
- struct udevice *panel;
- struct mipi_dsi *dsi;
- u32 ref_clk;
- u32 sys_clk;
- u32 pix_clk;
- u32 phy_clk;
- u32 txbyte_clk;
- u32 txesc_clk;
-};
-
-static int rk_mipi_read_timing(struct udevice *dev,
- struct display_timing *timing)
+int rk_mipi_read_timing(struct udevice *dev,
+ struct display_timing *timing)
{
int ret;
writel(dat, addr);
}
-static int rk_mipi_dsi_enable(struct udevice *dev,
- const struct display_timing *timing)
+int rk_mipi_dsi_enable(struct udevice *dev,
+ const struct display_timing *timing)
{
int node, timing_node;
int val;
struct rk_mipi_priv *priv = dev_get_priv(dev);
uintptr_t regs = priv->regs;
- struct display_plat *disp_uc_plat = dev_get_uclass_platdata(dev);
u32 txbyte_clk = priv->txbyte_clk;
u32 txesc_clk = priv->txesc_clk;
txesc_clk = txbyte_clk/(txbyte_clk/txesc_clk + 1);
- /* Select the video source */
- switch (disp_uc_plat->source_id) {
- case VOP_B:
- rk_clrsetreg(&priv->grf->soc_con20, GRF_DSI0_VOP_SEL_MASK,
- GRF_DSI0_VOP_SEL_B << GRF_DSI0_VOP_SEL_SHIFT);
- break;
- case VOP_L:
- rk_clrsetreg(&priv->grf->soc_con20, GRF_DSI0_VOP_SEL_MASK,
- GRF_DSI0_VOP_SEL_L << GRF_DSI0_VOP_SEL_SHIFT);
- break;
- default:
- debug("%s: Invalid VOP id\n", __func__);
- return -EINVAL;
- }
-
- /* Set Controller as TX mode */
- val = GRF_DPHY_TX0_RXMODE_DIS << GRF_DPHY_TX0_RXMODE_SHIFT;
- rk_clrsetreg(&priv->grf->soc_con22, GRF_DPHY_TX0_RXMODE_MASK, val);
-
- /* Exit tx stop mode */
- val |= GRF_DPHY_TX0_TXSTOPMODE_DIS << GRF_DPHY_TX0_TXSTOPMODE_SHIFT;
- rk_clrsetreg(&priv->grf->soc_con22, GRF_DPHY_TX0_TXSTOPMODE_MASK, val);
-
- /* Disable turnequest */
- val |= GRF_DPHY_TX0_TURNREQUEST_DIS << GRF_DPHY_TX0_TURNREQUEST_SHIFT;
- rk_clrsetreg(&priv->grf->soc_con22, GRF_DPHY_TX0_TURNREQUEST_MASK, val);
-
/* Set Display timing parameter */
rk_mipi_dsi_write(regs, VID_HSA_TIME, timing->hsync_len.typ);
rk_mipi_dsi_write(regs, VID_HBP_TIME, timing->hback_porch.typ);
* fsfreqrang value ,cap ,lpf and so on according to the given pix clk rate,
* and then enable phy.
*/
-static int rk_mipi_phy_enable(struct udevice *dev)
+int rk_mipi_phy_enable(struct udevice *dev)
{
int i;
struct rk_mipi_priv *priv = dev_get_priv(dev);
return 0;
}
-/*
- * This function is called by rk_display_init() using rk_mipi_dsi_enable() and
- * rk_mipi_phy_enable() to initialize mipi controller and dphy. If success,
- * enable backlight.
- */
-static int rk_display_enable(struct udevice *dev, int panel_bpp,
- const struct display_timing *timing)
-{
- int ret;
- struct rk_mipi_priv *priv = dev_get_priv(dev);
-
- /* Fill the mipi controller parameter */
- priv->ref_clk = 24 * MHz;
- priv->sys_clk = priv->ref_clk;
- priv->pix_clk = timing->pixelclock.typ;
- priv->phy_clk = priv->pix_clk * 6;
- priv->txbyte_clk = priv->phy_clk / 8;
- priv->txesc_clk = 20 * MHz;
-
- /* Config and enable mipi dsi according to timing */
- ret = rk_mipi_dsi_enable(dev, timing);
- if (ret) {
- debug("%s: rk_mipi_dsi_enable() failed (err=%d)\n",
- __func__, ret);
- return ret;
- }
-
- /* Config and enable mipi phy */
- ret = rk_mipi_phy_enable(dev);
- if (ret) {
- debug("%s: rk_mipi_phy_enable() failed (err=%d)\n",
- __func__, ret);
- return ret;
- }
-
- /* Enable backlight */
- ret = panel_enable_backlight(priv->panel);
- if (ret) {
- debug("%s: panel_enable_backlight() failed (err=%d)\n",
- __func__, ret);
- return ret;
- }
-
- return 0;
-}
-
-static int rk_mipi_ofdata_to_platdata(struct udevice *dev)
-{
- struct rk_mipi_priv *priv = dev_get_priv(dev);
-
- priv->grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF);
- if (priv->grf <= 0) {
- debug("%s: Get syscon grf failed (ret=%p)\n",
- __func__, priv->grf);
- return -ENXIO;
- }
- priv->regs = devfdt_get_addr(dev);
- if (priv->regs <= 0) {
- debug("%s: Get MIPI dsi address failed (ret=%lu)\n", __func__,
- priv->regs);
- return -ENXIO;
- }
-
- return 0;
-}
-
-/*
- * Probe function: check panel existence and readingit's timing. Then config
- * mipi dsi controller and enable it according to the timing parameter.
- */
-static int rk_mipi_probe(struct udevice *dev)
-{
- int ret;
- struct rk_mipi_priv *priv = dev_get_priv(dev);
-
- ret = uclass_get_device_by_phandle(UCLASS_PANEL, dev, "rockchip,panel",
- &priv->panel);
- if (ret) {
- debug("%s: Can not find panel (err=%d)\n", __func__, ret);
- return ret;
- }
-
- return 0;
-}
-
-static const struct dm_display_ops rk_mipi_dsi_ops = {
- .read_timing = rk_mipi_read_timing,
- .enable = rk_display_enable,
-};
-
-static const struct udevice_id rk_mipi_dsi_ids[] = {
- { .compatible = "rockchip,rk3399_mipi_dsi" },
- { }
-};
-
-U_BOOT_DRIVER(rk_mipi_dsi) = {
- .name = "rk_mipi_dsi",
- .id = UCLASS_DISPLAY,
- .of_match = rk_mipi_dsi_ids,
- .ofdata_to_platdata = rk_mipi_ofdata_to_platdata,
- .probe = rk_mipi_probe,
- .ops = &rk_mipi_dsi_ops,
- .priv_auto_alloc_size = sizeof(struct rk_mipi_priv),
-};
projects / platform / kernel / u-boot.git / commitdiff