--- /dev/null
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Intersil ISL7998x analog to MIPI CSI-2 or BT.656 decoder driver.
+ *
+ * Copyright (C) 2018-2019 Marek Vasut <marex@denx.de>
+ * Copyright (C) 2021 Michael Tretter <kernel@pengutronix.de>
+ */
+
+#include <linux/bitfield.h>
+#include <linux/delay.h>
+#include <linux/gpio.h>
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/of_graph.h>
+#include <linux/pm_runtime.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+#include <linux/v4l2-mediabus.h>
+#include <linux/videodev2.h>
+
+#include <media/v4l2-async.h>
+#include <media/v4l2-common.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-fwnode.h>
+#include <media/v4l2-ioctl.h>
+
+/*
+ * This control allows to activate and deactivate the test pattern on
+ * selected output channels.
+ * This value is ISL7998x specific.
+ */
+#define V4L2_CID_TEST_PATTERN_CHANNELS (V4L2_CID_USER_ISL7998X_BASE + 0)
+
+/*
+ * This control allows to specify the color of the test pattern.
+ * This value is ISL7998x specific.
+ */
+#define V4L2_CID_TEST_PATTERN_COLOR (V4L2_CID_USER_ISL7998X_BASE + 1)
+
+/*
+ * This control allows to specify the bar pattern in the test pattern.
+ * This value is ISL7998x specific.
+ */
+#define V4L2_CID_TEST_PATTERN_BARS (V4L2_CID_USER_ISL7998X_BASE + 2)
+
+#define ISL7998X_INPUTS 4
+
+#define ISL7998X_REG(page, reg) (((page) << 8) | (reg))
+
+#define ISL7998X_REG_PN_SIZE 256
+#define ISL7998X_REG_PN_BASE(n) ((n) * ISL7998X_REG_PN_SIZE)
+
+#define ISL7998X_REG_PX_DEC_PAGE(page) ISL7998X_REG((page), 0xff)
+#define ISL7998X_REG_PX_DEC_PAGE_MASK 0xf
+#define ISL7998X_REG_P0_PRODUCT_ID_CODE ISL7998X_REG(0, 0x00)
+#define ISL7998X_REG_P0_PRODUCT_REV_CODE ISL7998X_REG(0, 0x01)
+#define ISL7998X_REG_P0_SW_RESET_CTL ISL7998X_REG(0, 0x02)
+#define ISL7998X_REG_P0_IO_BUFFER_CTL ISL7998X_REG(0, 0x03)
+#define ISL7998X_REG_P0_IO_BUFFER_CTL_1_1 ISL7998X_REG(0, 0x04)
+#define ISL7998X_REG_P0_IO_PAD_PULL_EN_CTL ISL7998X_REG(0, 0x05)
+#define ISL7998X_REG_P0_IO_BUFFER_CTL_1_2 ISL7998X_REG(0, 0x06)
+#define ISL7998X_REG_P0_VIDEO_IN_CHAN_CTL ISL7998X_REG(0, 0x07)
+#define ISL7998X_REG_P0_CLK_CTL_1 ISL7998X_REG(0, 0x08)
+#define ISL7998X_REG_P0_CLK_CTL_2 ISL7998X_REG(0, 0x09)
+#define ISL7998X_REG_P0_CLK_CTL_3 ISL7998X_REG(0, 0x0a)
+#define ISL7998X_REG_P0_CLK_CTL_4 ISL7998X_REG(0, 0x0b)
+#define ISL7998X_REG_P0_MPP1_SYNC_CTL ISL7998X_REG(0, 0x0c)
+#define ISL7998X_REG_P0_MPP2_SYNC_CTL ISL7998X_REG(0, 0x0d)
+#define ISL7998X_REG_P0_IRQ_SYNC_CTL ISL7998X_REG(0, 0x0e)
+#define ISL7998X_REG_P0_INTERRUPT_STATUS ISL7998X_REG(0, 0x10)
+#define ISL7998X_REG_P0_CHAN_1_IRQ ISL7998X_REG(0, 0x11)
+#define ISL7998X_REG_P0_CHAN_2_IRQ ISL7998X_REG(0, 0x12)
+#define ISL7998X_REG_P0_CHAN_3_IRQ ISL7998X_REG(0, 0x13)
+#define ISL7998X_REG_P0_CHAN_4_IRQ ISL7998X_REG(0, 0x14)
+#define ISL7998X_REG_P0_SHORT_DIAG_IRQ ISL7998X_REG(0, 0x15)
+#define ISL7998X_REG_P0_CHAN_1_IRQ_EN ISL7998X_REG(0, 0x16)
+#define ISL7998X_REG_P0_CHAN_2_IRQ_EN ISL7998X_REG(0, 0x17)
+#define ISL7998X_REG_P0_CHAN_3_IRQ_EN ISL7998X_REG(0, 0x18)
+#define ISL7998X_REG_P0_CHAN_4_IRQ_EN ISL7998X_REG(0, 0x19)
+#define ISL7998X_REG_P0_SHORT_DIAG_IRQ_EN ISL7998X_REG(0, 0x1a)
+#define ISL7998X_REG_P0_CHAN_1_STATUS ISL7998X_REG(0, 0x1b)
+#define ISL7998X_REG_P0_CHAN_2_STATUS ISL7998X_REG(0, 0x1c)
+#define ISL7998X_REG_P0_CHAN_3_STATUS ISL7998X_REG(0, 0x1d)
+#define ISL7998X_REG_P0_CHAN_4_STATUS ISL7998X_REG(0, 0x1e)
+#define ISL7998X_REG_P0_SHORT_DIAG_STATUS ISL7998X_REG(0, 0x1f)
+#define ISL7998X_REG_P0_CLOCK_DELAY ISL7998X_REG(0, 0x20)
+
+#define ISL7998X_REG_PX_DEC_INPUT_FMT(pg) ISL7998X_REG((pg), 0x02)
+#define ISL7998X_REG_PX_DEC_STATUS_1(pg) ISL7998X_REG((pg), 0x03)
+#define ISL7998X_REG_PX_DEC_STATUS_1_VDLOSS BIT(7)
+#define ISL7998X_REG_PX_DEC_STATUS_1_HLOCK BIT(6)
+#define ISL7998X_REG_PX_DEC_STATUS_1_VLOCK BIT(3)
+#define ISL7998X_REG_PX_DEC_HS_DELAY_CTL(pg) ISL7998X_REG((pg), 0x04)
+#define ISL7998X_REG_PX_DEC_ANCTL(pg) ISL7998X_REG((pg), 0x06)
+#define ISL7998X_REG_PX_DEC_CROP_HI(pg) ISL7998X_REG((pg), 0x07)
+#define ISL7998X_REG_PX_DEC_VDELAY_LO(pg) ISL7998X_REG((pg), 0x08)
+#define ISL7998X_REG_PX_DEC_VACTIVE_LO(pg) ISL7998X_REG((pg), 0x09)
+#define ISL7998X_REG_PX_DEC_HDELAY_LO(pg) ISL7998X_REG((pg), 0x0a)
+#define ISL7998X_REG_PX_DEC_HACTIVE_LO(pg) ISL7998X_REG((pg), 0x0b)
+#define ISL7998X_REG_PX_DEC_CNTRL1(pg) ISL7998X_REG((pg), 0x0c)
+#define ISL7998X_REG_PX_DEC_CSC_CTL(pg) ISL7998X_REG((pg), 0x0d)
+#define ISL7998X_REG_PX_DEC_BRIGHT(pg) ISL7998X_REG((pg), 0x10)
+#define ISL7998X_REG_PX_DEC_CONTRAST(pg) ISL7998X_REG((pg), 0x11)
+#define ISL7998X_REG_PX_DEC_SHARPNESS(pg) ISL7998X_REG((pg), 0x12)
+#define ISL7998X_REG_PX_DEC_SAT_U(pg) ISL7998X_REG((pg), 0x13)
+#define ISL7998X_REG_PX_DEC_SAT_V(pg) ISL7998X_REG((pg), 0x14)
+#define ISL7998X_REG_PX_DEC_HUE(pg) ISL7998X_REG((pg), 0x15)
+#define ISL7998X_REG_PX_DEC_VERT_PEAK(pg) ISL7998X_REG((pg), 0x17)
+#define ISL7998X_REG_PX_DEC_CORING(pg) ISL7998X_REG((pg), 0x18)
+#define ISL7998X_REG_PX_DEC_SDT(pg) ISL7998X_REG((pg), 0x1c)
+#define ISL7998X_REG_PX_DEC_SDT_DET BIT(7)
+#define ISL7998X_REG_PX_DEC_SDT_NOW GENMASK(6, 4)
+#define ISL7998X_REG_PX_DEC_SDT_STANDARD GENMASK(2, 0)
+#define ISL7998X_REG_PX_DEC_SDT_STANDARD_NTSC_M 0
+#define ISL7998X_REG_PX_DEC_SDT_STANDARD_PAL 1
+#define ISL7998X_REG_PX_DEC_SDT_STANDARD_SECAM 2
+#define ISL7998X_REG_PX_DEC_SDT_STANDARD_NTSC_443 3
+#define ISL7998X_REG_PX_DEC_SDT_STANDARD_PAL_M 4
+#define ISL7998X_REG_PX_DEC_SDT_STANDARD_PAL_CN 5
+#define ISL7998X_REG_PX_DEC_SDT_STANDARD_PAL_60 6
+#define ISL7998X_REG_PX_DEC_SDT_STANDARD_UNKNOWN 7
+#define ISL7998X_REG_PX_DEC_SDTR(pg) ISL7998X_REG((pg), 0x1d)
+#define ISL7998X_REG_PX_DEC_SDTR_ATSTART BIT(7)
+#define ISL7998X_REG_PX_DEC_CLMPG(pg) ISL7998X_REG((pg), 0x20)
+#define ISL7998X_REG_PX_DEC_IAGC(pg) ISL7998X_REG((pg), 0x21)
+#define ISL7998X_REG_PX_DEC_AGCGAIN(pg) ISL7998X_REG((pg), 0x22)
+#define ISL7998X_REG_PX_DEC_PEAKWT(pg) ISL7998X_REG((pg), 0x23)
+#define ISL7998X_REG_PX_DEC_CLMPL(pg) ISL7998X_REG((pg), 0x24)
+#define ISL7998X_REG_PX_DEC_SYNCT(pg) ISL7998X_REG((pg), 0x25)
+#define ISL7998X_REG_PX_DEC_MISSCNT(pg) ISL7998X_REG((pg), 0x26)
+#define ISL7998X_REG_PX_DEC_PCLAMP(pg) ISL7998X_REG((pg), 0x27)
+#define ISL7998X_REG_PX_DEC_VERT_CTL_1(pg) ISL7998X_REG((pg), 0x28)
+#define ISL7998X_REG_PX_DEC_VERT_CTL_2(pg) ISL7998X_REG((pg), 0x29)
+#define ISL7998X_REG_PX_DEC_CLR_KILL_LVL(pg) ISL7998X_REG((pg), 0x2a)
+#define ISL7998X_REG_PX_DEC_COMB_FILTER_CTL(pg) ISL7998X_REG((pg), 0x2b)
+#define ISL7998X_REG_PX_DEC_LUMA_DELAY(pg) ISL7998X_REG((pg), 0x2c)
+#define ISL7998X_REG_PX_DEC_MISC1(pg) ISL7998X_REG((pg), 0x2d)
+#define ISL7998X_REG_PX_DEC_MISC2(pg) ISL7998X_REG((pg), 0x2e)
+#define ISL7998X_REG_PX_DEC_MISC3(pg) ISL7998X_REG((pg), 0x2f)
+#define ISL7998X_REG_PX_DEC_MVSN(pg) ISL7998X_REG((pg), 0x30)
+#define ISL7998X_REG_PX_DEC_CSTATUS2(pg) ISL7998X_REG((pg), 0x31)
+#define ISL7998X_REG_PX_DEC_HFREF(pg) ISL7998X_REG((pg), 0x32)
+#define ISL7998X_REG_PX_DEC_CLMD(pg) ISL7998X_REG((pg), 0x33)
+#define ISL7998X_REG_PX_DEC_ID_DET_CTL(pg) ISL7998X_REG((pg), 0x34)
+#define ISL7998X_REG_PX_DEC_CLCNTL(pg) ISL7998X_REG((pg), 0x35)
+#define ISL7998X_REG_PX_DEC_DIFF_CLMP_CTL_1(pg) ISL7998X_REG((pg), 0x36)
+#define ISL7998X_REG_PX_DEC_DIFF_CLMP_CTL_2(pg) ISL7998X_REG((pg), 0x37)
+#define ISL7998X_REG_PX_DEC_DIFF_CLMP_CTL_3(pg) ISL7998X_REG((pg), 0x38)
+#define ISL7998X_REG_PX_DEC_DIFF_CLMP_CTL_4(pg) ISL7998X_REG((pg), 0x39)
+#define ISL7998X_REG_PX_DEC_SHORT_DET_CTL(pg) ISL7998X_REG((pg), 0x3a)
+#define ISL7998X_REG_PX_DEC_SHORT_DET_CTL_1(pg) ISL7998X_REG((pg), 0x3b)
+#define ISL7998X_REG_PX_DEC_AFE_TST_MUX_CTL(pg) ISL7998X_REG((pg), 0x3c)
+#define ISL7998X_REG_PX_DEC_DATA_CONV(pg) ISL7998X_REG((pg), 0x3d)
+#define ISL7998X_REG_PX_DEC_INTERNAL_TEST(pg) ISL7998X_REG((pg), 0x3f)
+#define ISL7998X_REG_PX_DEC_H_DELAY_CTL(pg) ISL7998X_REG((pg), 0x43)
+#define ISL7998X_REG_PX_DEC_H_DELAY_II_HI(pg) ISL7998X_REG((pg), 0x44)
+#define ISL7998X_REG_PX_DEC_H_DELAY_II_LOW(pg) ISL7998X_REG((pg), 0x45)
+
+#define ISL7998X_REG_PX_ACA_CTL_1(pg) ISL7998X_REG((pg), 0x80)
+#define ISL7998X_REG_PX_ACA_GAIN_CTL(pg) ISL7998X_REG((pg), 0x81)
+#define ISL7998X_REG_PX_ACA_Y_AVG_HI_LIMIT(pg) ISL7998X_REG((pg), 0x82)
+#define ISL7998X_REG_PX_ACA_Y_AVG_LO_LIMIT(pg) ISL7998X_REG((pg), 0x83)
+#define ISL7998X_REG_PX_ACA_Y_DET_THRESHOLD(pg) ISL7998X_REG((pg), 0x84)
+#define ISL7998X_REG_PX_ACA_BLACK_LVL(pg) ISL7998X_REG((pg), 0x85)
+#define ISL7998X_REG_PX_ACA_CENTER_LVL(pg) ISL7998X_REG((pg), 0x86)
+#define ISL7998X_REG_PX_ACA_WHITE_LVL(pg) ISL7998X_REG((pg), 0x87)
+#define ISL7998X_REG_PX_ACA_MEAN_OFF_LIMIT(pg) ISL7998X_REG((pg), 0x88)
+#define ISL7998X_REG_PX_ACA_MEAN_OFF_UPGAIN(pg) ISL7998X_REG((pg), 0x89)
+#define ISL7998X_REG_PX_ACA_MEAN_OFF_SLOPE(pg) ISL7998X_REG((pg), 0x8a)
+#define ISL7998X_REG_PX_ACA_MEAN_OFF_DNGAIN(pg) ISL7998X_REG((pg), 0x8b)
+#define ISL7998X_REG_PX_ACA_DELTA_CO_THRES(pg) ISL7998X_REG((pg), 0x8c)
+#define ISL7998X_REG_PX_ACA_DELTA_SLOPE(pg) ISL7998X_REG((pg), 0x8d)
+#define ISL7998X_REG_PX_ACA_LO_HI_AVG_THRES(pg) ISL7998X_REG((pg), 0x8e)
+#define ISL7998X_REG_PX_ACA_LO_MAX_LVL_CTL(pg) ISL7998X_REG((pg), 0x8f)
+#define ISL7998X_REG_PX_ACA_HI_MAX_LVL_CTL(pg) ISL7998X_REG((pg), 0x90)
+#define ISL7998X_REG_PX_ACA_LO_UPGAIN_CTL(pg) ISL7998X_REG((pg), 0x91)
+#define ISL7998X_REG_PX_ACA_LO_DNGAIN_CTL(pg) ISL7998X_REG((pg), 0x92)
+#define ISL7998X_REG_PX_ACA_HI_UPGAIN_CTL(pg) ISL7998X_REG((pg), 0x93)
+#define ISL7998X_REG_PX_ACA_HI_DNGAIN_CTL(pg) ISL7998X_REG((pg), 0x94)
+#define ISL7998X_REG_PX_ACA_LOPASS_FLT_COEF(pg) ISL7998X_REG((pg), 0x95)
+#define ISL7998X_REG_PX_ACA_PDF_INDEX(pg) ISL7998X_REG((pg), 0x96)
+#define ISL7998X_REG_PX_ACA_HIST_WIN_H_STT(pg) ISL7998X_REG((pg), 0x97)
+#define ISL7998X_REG_PX_ACA_HIST_WIN_H_SZ1(pg) ISL7998X_REG((pg), 0x98)
+#define ISL7998X_REG_PX_ACA_HIST_WIN_H_SZ2(pg) ISL7998X_REG((pg), 0x99)
+#define ISL7998X_REG_PX_ACA_HIST_WIN_V_STT(pg) ISL7998X_REG((pg), 0x9a)
+#define ISL7998X_REG_PX_ACA_HIST_WIN_V_SZ1(pg) ISL7998X_REG((pg), 0x9b)
+#define ISL7998X_REG_PX_ACA_HIST_WIN_V_SZ2(pg) ISL7998X_REG((pg), 0x9c)
+#define ISL7998X_REG_PX_ACA_Y_AVG(pg) ISL7998X_REG((pg), 0xa0)
+#define ISL7998X_REG_PX_ACA_Y_AVG_LIM(pg) ISL7998X_REG((pg), 0xa1)
+#define ISL7998X_REG_PX_ACA_LO_AVG(pg) ISL7998X_REG((pg), 0xa2)
+#define ISL7998X_REG_PX_ACA_HI_AVG(pg) ISL7998X_REG((pg), 0xa3)
+#define ISL7998X_REG_PX_ACA_Y_MAX(pg) ISL7998X_REG((pg), 0xa4)
+#define ISL7998X_REG_PX_ACA_Y_MIN(pg) ISL7998X_REG((pg), 0xa5)
+#define ISL7998X_REG_PX_ACA_MOFFSET(pg) ISL7998X_REG((pg), 0xa6)
+#define ISL7998X_REG_PX_ACA_LO_GAIN(pg) ISL7998X_REG((pg), 0xa7)
+#define ISL7998X_REG_PX_ACA_HI_GAIN(pg) ISL7998X_REG((pg), 0xa8)
+#define ISL7998X_REG_PX_ACA_LL_SLOPE(pg) ISL7998X_REG((pg), 0xa9)
+#define ISL7998X_REG_PX_ACA_LH_SLOPE(pg) ISL7998X_REG((pg), 0xaa)
+#define ISL7998X_REG_PX_ACA_HL_SLOPE(pg) ISL7998X_REG((pg), 0xab)
+#define ISL7998X_REG_PX_ACA_HH_SLOPE(pg) ISL7998X_REG((pg), 0xac)
+#define ISL7998X_REG_PX_ACA_X_LOW(pg) ISL7998X_REG((pg), 0xad)
+#define ISL7998X_REG_PX_ACA_X_MEAN(pg) ISL7998X_REG((pg), 0xae)
+#define ISL7998X_REG_PX_ACA_X_HIGH(pg) ISL7998X_REG((pg), 0xaf)
+#define ISL7998X_REG_PX_ACA_Y_LOW(pg) ISL7998X_REG((pg), 0xb0)
+#define ISL7998X_REG_PX_ACA_Y_MEAN(pg) ISL7998X_REG((pg), 0xb1)
+#define ISL7998X_REG_PX_ACA_Y_HIGH(pg) ISL7998X_REG((pg), 0xb2)
+#define ISL7998X_REG_PX_ACA_CTL_2(pg) ISL7998X_REG((pg), 0xb3)
+#define ISL7998X_REG_PX_ACA_CTL_3(pg) ISL7998X_REG((pg), 0xb4)
+#define ISL7998X_REG_PX_ACA_CTL_4(pg) ISL7998X_REG((pg), 0xb5)
+#define ISL7998X_REG_PX_ACA_FLEX_WIN_HIST(pg) ISL7998X_REG((pg), 0xc0)
+#define ISL7998X_REG_PX_ACA_FLEX_WIN_X_TL_H(pg) ISL7998X_REG((pg), 0xc1)
+#define ISL7998X_REG_PX_ACA_FLEX_WIN_X_TL_L(pg) ISL7998X_REG((pg), 0xc2)
+#define ISL7998X_REG_PX_ACA_FLEX_WIN_Y_TL_H(pg) ISL7998X_REG((pg), 0xc3)
+#define ISL7998X_REG_PX_ACA_FLEX_WIN_Y_TL_L(pg) ISL7998X_REG((pg), 0xc4)
+#define ISL7998X_REG_PX_ACA_FLEX_WIN_X_TR_H(pg) ISL7998X_REG((pg), 0xc5)
+#define ISL7998X_REG_PX_ACA_FLEX_WIN_X_TR_L(pg) ISL7998X_REG((pg), 0xc6)
+#define ISL7998X_REG_PX_ACA_FLEX_WIN_Y_TR_H(pg) ISL7998X_REG((pg), 0xc7)
+#define ISL7998X_REG_PX_ACA_FLEX_WIN_Y_TR_L(pg) ISL7998X_REG((pg), 0xc8)
+#define ISL7998X_REG_PX_ACA_FLEX_WIN_X_BL_H(pg) ISL7998X_REG((pg), 0xc9)
+#define ISL7998X_REG_PX_ACA_FLEX_WIN_X_BL_L(pg) ISL7998X_REG((pg), 0xca)
+#define ISL7998X_REG_PX_ACA_FLEX_WIN_Y_BL_H(pg) ISL7998X_REG((pg), 0xcb)
+#define ISL7998X_REG_PX_ACA_FLEX_WIN_Y_BL_L(pg) ISL7998X_REG((pg), 0xcc)
+#define ISL7998X_REG_PX_ACA_FLEX_WIN_X_BR_H(pg) ISL7998X_REG((pg), 0xcd)
+#define ISL7998X_REG_PX_ACA_FLEX_WIN_X_BR_L(pg) ISL7998X_REG((pg), 0xce)
+#define ISL7998X_REG_PX_ACA_FLEX_WIN_Y_BR_H(pg) ISL7998X_REG((pg), 0xcf)
+#define ISL7998X_REG_PX_ACA_FLEX_WIN_Y_BR_L(pg) ISL7998X_REG((pg), 0xd0)
+#define ISL7998X_REG_PX_ACA_FLEX_WIN_X_LM_H(pg) ISL7998X_REG((pg), 0xd1)
+#define ISL7998X_REG_PX_ACA_FLEX_WIN_X_LM_L(pg) ISL7998X_REG((pg), 0xd2)
+#define ISL7998X_REG_PX_ACA_FLEX_WIN_Y_LM_H(pg) ISL7998X_REG((pg), 0xd3)
+#define ISL7998X_REG_PX_ACA_FLEX_WIN_Y_LM_L(pg) ISL7998X_REG((pg), 0xd4)
+#define ISL7998X_REG_PX_ACA_FLEX_WIN_X_TM_H(pg) ISL7998X_REG((pg), 0xd5)
+#define ISL7998X_REG_PX_ACA_FLEX_WIN_X_TM_L(pg) ISL7998X_REG((pg), 0xd6)
+#define ISL7998X_REG_PX_ACA_FLEX_WIN_Y_TM_H(pg) ISL7998X_REG((pg), 0xd7)
+#define ISL7998X_REG_PX_ACA_FLEX_WIN_Y_TM_L(pg) ISL7998X_REG((pg), 0xd8)
+#define ISL7998X_REG_PX_ACA_FLEX_WIN_X_BM_H(pg) ISL7998X_REG((pg), 0xd9)
+#define ISL7998X_REG_PX_ACA_FLEX_WIN_X_BM_L(pg) ISL7998X_REG((pg), 0xda)
+#define ISL7998X_REG_PX_ACA_FLEX_WIN_Y_BM_H(pg) ISL7998X_REG((pg), 0xdb)
+#define ISL7998X_REG_PX_ACA_FLEX_WIN_Y_BM_L(pg) ISL7998X_REG((pg), 0xdc)
+#define ISL7998X_REG_PX_ACA_FLEX_WIN_X_RM_H(pg) ISL7998X_REG((pg), 0xdd)
+#define ISL7998X_REG_PX_ACA_FLEX_WIN_X_RM_L(pg) ISL7998X_REG((pg), 0xde)
+#define ISL7998X_REG_PX_ACA_FLEX_WIN_Y_RM_H(pg) ISL7998X_REG((pg), 0xdf)
+#define ISL7998X_REG_PX_ACA_FLEX_WIN_Y_RM_L(pg) ISL7998X_REG((pg), 0xe0)
+#define ISL7998X_REG_PX_ACA_HIST_DATA_LO(pg) ISL7998X_REG((pg), 0xe1)
+#define ISL7998X_REG_PX_ACA_HIST_DATA_MID(pg) ISL7998X_REG((pg), 0xe2)
+#define ISL7998X_REG_PX_ACA_HIST_DATA_HI(pg) ISL7998X_REG((pg), 0xe3)
+#define ISL7998X_REG_PX_ACA_FLEX_WIN_Y_CLR(pg) ISL7998X_REG((pg), 0xe4)
+#define ISL7998X_REG_PX_ACA_FLEX_WIN_CB_CLR(pg) ISL7998X_REG((pg), 0xe5)
+#define ISL7998X_REG_PX_ACA_FLEX_WIN_CR_CLR(pg) ISL7998X_REG((pg), 0xe6)
+#define ISL7998X_REG_PX_ACA_XFER_HIST_HOST(pg) ISL7998X_REG((pg), 0xe7)
+
+#define ISL7998X_REG_P5_LI_ENGINE_CTL ISL7998X_REG(5, 0x00)
+#define ISL7998X_REG_P5_LI_ENGINE_LINE_CTL ISL7998X_REG(5, 0x01)
+#define ISL7998X_REG_P5_LI_ENGINE_PIC_WIDTH ISL7998X_REG(5, 0x02)
+#define ISL7998X_REG_P5_LI_ENGINE_SYNC_CTL ISL7998X_REG(5, 0x03)
+#define ISL7998X_REG_P5_LI_ENGINE_VC_ASSIGNMENT ISL7998X_REG(5, 0x04)
+#define ISL7998X_REG_P5_LI_ENGINE_TYPE_CTL ISL7998X_REG(5, 0x05)
+#define ISL7998X_REG_P5_LI_ENGINE_FIFO_CTL ISL7998X_REG(5, 0x06)
+#define ISL7998X_REG_P5_MIPI_READ_START_CTL ISL7998X_REG(5, 0x07)
+#define ISL7998X_REG_P5_PSEUDO_FRM_FIELD_CTL ISL7998X_REG(5, 0x08)
+#define ISL7998X_REG_P5_ONE_FIELD_MODE_CTL ISL7998X_REG(5, 0x09)
+#define ISL7998X_REG_P5_MIPI_INT_HW_TST_CTR ISL7998X_REG(5, 0x0a)
+#define ISL7998X_REG_P5_TP_GEN_BAR_PATTERN ISL7998X_REG(5, 0x0b)
+#define ISL7998X_REG_P5_MIPI_PCNT_PSFRM ISL7998X_REG(5, 0x0c)
+#define ISL7998X_REG_P5_LI_ENGINE_TP_GEN_CTL ISL7998X_REG(5, 0x0d)
+#define ISL7998X_REG_P5_MIPI_VBLANK_PSFRM ISL7998X_REG(5, 0x0e)
+#define ISL7998X_REG_P5_LI_ENGINE_CTL_2 ISL7998X_REG(5, 0x0f)
+#define ISL7998X_REG_P5_MIPI_WCNT_1 ISL7998X_REG(5, 0x10)
+#define ISL7998X_REG_P5_MIPI_WCNT_2 ISL7998X_REG(5, 0x11)
+#define ISL7998X_REG_P5_MIPI_DPHY_TIMING_CTL_1 ISL7998X_REG(5, 0x12)
+#define ISL7998X_REG_P5_MIPI_DPHY_TIMING_CTL_2 ISL7998X_REG(5, 0x13)
+#define ISL7998X_REG_P5_MIPI_DPHY_TIMING_CTL_3 ISL7998X_REG(5, 0x14)
+#define ISL7998X_REG_P5_MIPI_DPHY_TIMING_CTL_4 ISL7998X_REG(5, 0x15)
+#define ISL7998X_REG_P5_MIPI_DPHY_TIMING_CTL_5 ISL7998X_REG(5, 0x16)
+#define ISL7998X_REG_P5_MIPI_DPHY_TIMING_CTL_6 ISL7998X_REG(5, 0x17)
+#define ISL7998X_REG_P5_MIPI_DPHY_PARAMS_1 ISL7998X_REG(5, 0x18)
+#define ISL7998X_REG_P5_MIPI_DPHY_SOT_PERIOD ISL7998X_REG(5, 0x19)
+#define ISL7998X_REG_P5_MIPI_DPHY_EOT_PERIOD ISL7998X_REG(5, 0x1a)
+#define ISL7998X_REG_P5_MIPI_DPHY_PARAMS_2 ISL7998X_REG(5, 0x1b)
+#define ISL7998X_REG_P5_MIPI_DPHY_TIMING_CTL_7 ISL7998X_REG(5, 0x1c)
+#define ISL7998X_REG_P5_MIPI_DPHY_TIMING_CTL_8 ISL7998X_REG(5, 0x1d)
+#define ISL7998X_REG_P5_MIPI_DPHY_TIMING_CTL_9 ISL7998X_REG(5, 0x1e)
+#define ISL7998X_REG_P5_MIPI_DPHY_TIMING_CTL_10 ISL7998X_REG(5, 0x1f)
+#define ISL7998X_REG_P5_TP_GEN_MIPI ISL7998X_REG(5, 0x20)
+#define ISL7998X_REG_P5_ESC_MODE_TIME_CTL ISL7998X_REG(5, 0x21)
+#define ISL7998X_REG_P5_AUTO_TEST_ERR_DET ISL7998X_REG(5, 0x22)
+#define ISL7998X_REG_P5_MIPI_TIMING ISL7998X_REG(5, 0x23)
+#define ISL7998X_REG_P5_PIC_HEIGHT_HIGH ISL7998X_REG(5, 0x24)
+#define ISL7998X_REG_P5_PIC_HEIGHT_LOW ISL7998X_REG(5, 0x25)
+#define ISL7998X_REG_P5_MIPI_SP_HS_TRL_CTL ISL7998X_REG(5, 0x26)
+#define ISL7998X_REG_P5_FIFO_THRSH_CNT_1 ISL7998X_REG(5, 0x28)
+#define ISL7998X_REG_P5_FIFO_THRSH_CNT_2 ISL7998X_REG(5, 0x29)
+#define ISL7998X_REG_P5_TP_GEN_RND_SYNC_CTL_1 ISL7998X_REG(5, 0x2a)
+#define ISL7998X_REG_P5_TP_GEN_RND_SYNC_CTL_2 ISL7998X_REG(5, 0x2b)
+#define ISL7998X_REG_P5_PSF_FIELD_END_CTL_1 ISL7998X_REG(5, 0x2c)
+#define ISL7998X_REG_P5_PSF_FIELD_END_CTL_2 ISL7998X_REG(5, 0x2d)
+#define ISL7998X_REG_P5_PSF_FIELD_END_CTL_3 ISL7998X_REG(5, 0x2e)
+#define ISL7998X_REG_P5_PSF_FIELD_END_CTL_4 ISL7998X_REG(5, 0x2f)
+#define ISL7998X_REG_P5_MIPI_ANA_DATA_CTL_1 ISL7998X_REG(5, 0x30)
+#define ISL7998X_REG_P5_MIPI_ANA_DATA_CTL_2 ISL7998X_REG(5, 0x31)
+#define ISL7998X_REG_P5_MIPI_ANA_CLK_CTL ISL7998X_REG(5, 0x32)
+#define ISL7998X_REG_P5_PLL_ANA_STATUS ISL7998X_REG(5, 0x33)
+#define ISL7998X_REG_P5_PLL_ANA_MISC_CTL ISL7998X_REG(5, 0x34)
+#define ISL7998X_REG_P5_MIPI_ANA ISL7998X_REG(5, 0x35)
+#define ISL7998X_REG_P5_PLL_ANA ISL7998X_REG(5, 0x36)
+#define ISL7998X_REG_P5_TOTAL_PF_LINE_CNT_1 ISL7998X_REG(5, 0x38)
+#define ISL7998X_REG_P5_TOTAL_PF_LINE_CNT_2 ISL7998X_REG(5, 0x39)
+#define ISL7998X_REG_P5_H_LINE_CNT_1 ISL7998X_REG(5, 0x3a)
+#define ISL7998X_REG_P5_H_LINE_CNT_2 ISL7998X_REG(5, 0x3b)
+#define ISL7998X_REG_P5_HIST_LINE_CNT_1 ISL7998X_REG(5, 0x3c)
+#define ISL7998X_REG_P5_HIST_LINE_CNT_2 ISL7998X_REG(5, 0x3d)
+
+static const struct reg_sequence isl7998x_init_seq_1[] = {
+ { ISL7998X_REG_P0_SHORT_DIAG_IRQ_EN, 0xff },
+ { ISL7998X_REG_PX_DEC_SDT(0x1), 0x00 },
+ { ISL7998X_REG_PX_DEC_SHORT_DET_CTL_1(0x1), 0x03 },
+ { ISL7998X_REG_PX_DEC_SDT(0x2), 0x00 },
+ { ISL7998X_REG_PX_DEC_SHORT_DET_CTL_1(0x2), 0x03 },
+ { ISL7998X_REG_PX_DEC_SDT(0x3), 0x00 },
+ { ISL7998X_REG_PX_DEC_SHORT_DET_CTL_1(0x3), 0x03 },
+ { ISL7998X_REG_PX_DEC_SDT(0x4), 0x00 },
+ { ISL7998X_REG_PX_DEC_SHORT_DET_CTL_1(0x4), 0x03 },
+ { ISL7998X_REG_P5_LI_ENGINE_CTL, 0x00 },
+ { ISL7998X_REG_P0_SW_RESET_CTL, 0x1f, 10 },
+ { ISL7998X_REG_P0_IO_BUFFER_CTL, 0x00 },
+ { ISL7998X_REG_P0_MPP2_SYNC_CTL, 0xc9 },
+ { ISL7998X_REG_P0_IRQ_SYNC_CTL, 0xc9 },
+ { ISL7998X_REG_P0_CHAN_1_IRQ, 0x03 },
+ { ISL7998X_REG_P0_CHAN_2_IRQ, 0x00 },
+ { ISL7998X_REG_P0_CHAN_3_IRQ, 0x00 },
+ { ISL7998X_REG_P0_CHAN_4_IRQ, 0x00 },
+ { ISL7998X_REG_P5_LI_ENGINE_CTL, 0x02 },
+ { ISL7998X_REG_P5_LI_ENGINE_LINE_CTL, 0x85 },
+ { ISL7998X_REG_P5_LI_ENGINE_PIC_WIDTH, 0xa0 },
+ { ISL7998X_REG_P5_LI_ENGINE_SYNC_CTL, 0x18 },
+ { ISL7998X_REG_P5_LI_ENGINE_TYPE_CTL, 0x40 },
+ { ISL7998X_REG_P5_LI_ENGINE_FIFO_CTL, 0x40 },
+ { ISL7998X_REG_P5_MIPI_WCNT_1, 0x05 },
+ { ISL7998X_REG_P5_MIPI_WCNT_2, 0xa0 },
+ { ISL7998X_REG_P5_TP_GEN_MIPI, 0x00 },
+ { ISL7998X_REG_P5_ESC_MODE_TIME_CTL, 0x0c },
+ { ISL7998X_REG_P5_MIPI_SP_HS_TRL_CTL, 0x00 },
+ { ISL7998X_REG_P5_TP_GEN_RND_SYNC_CTL_1, 0x00 },
+ { ISL7998X_REG_P5_TP_GEN_RND_SYNC_CTL_2, 0x19 },
+ { ISL7998X_REG_P5_PSF_FIELD_END_CTL_1, 0x18 },
+ { ISL7998X_REG_P5_PSF_FIELD_END_CTL_2, 0xf1 },
+ { ISL7998X_REG_P5_PSF_FIELD_END_CTL_3, 0x00 },
+ { ISL7998X_REG_P5_PSF_FIELD_END_CTL_4, 0xf1 },
+ { ISL7998X_REG_P5_MIPI_ANA_DATA_CTL_1, 0x00 },
+ { ISL7998X_REG_P5_MIPI_ANA_DATA_CTL_2, 0x00 },
+ { ISL7998X_REG_P5_MIPI_ANA_CLK_CTL, 0x00 },
+ { ISL7998X_REG_P5_PLL_ANA_STATUS, 0xc0 },
+ { ISL7998X_REG_P5_PLL_ANA_MISC_CTL, 0x18 },
+ { ISL7998X_REG_P5_PLL_ANA, 0x00 },
+ { ISL7998X_REG_P0_SW_RESET_CTL, 0x10, 10 },
+ /* Page 0xf means write to all of pages 1,2,3,4 */
+ { ISL7998X_REG_PX_DEC_VDELAY_LO(0xf), 0x14 },
+ { ISL7998X_REG_PX_DEC_MISC3(0xf), 0xe6 },
+ { ISL7998X_REG_PX_DEC_CLMD(0xf), 0x85 },
+ { ISL7998X_REG_PX_DEC_H_DELAY_II_LOW(0xf), 0x11 },
+ { ISL7998X_REG_PX_ACA_XFER_HIST_HOST(0xf), 0x00 },
+ { ISL7998X_REG_P0_CLK_CTL_1, 0x1f },
+ { ISL7998X_REG_P0_CLK_CTL_2, 0x43 },
+ { ISL7998X_REG_P0_CLK_CTL_3, 0x4f },
+};
+
+static const struct reg_sequence isl7998x_init_seq_2[] = {
+ { ISL7998X_REG_P5_LI_ENGINE_SYNC_CTL, 0x10 },
+ { ISL7998X_REG_P5_LI_ENGINE_VC_ASSIGNMENT, 0xe4 },
+ { ISL7998X_REG_P5_LI_ENGINE_TYPE_CTL, 0x00 },
+ { ISL7998X_REG_P5_LI_ENGINE_FIFO_CTL, 0x60 },
+ { ISL7998X_REG_P5_MIPI_READ_START_CTL, 0x2b },
+ { ISL7998X_REG_P5_PSEUDO_FRM_FIELD_CTL, 0x02 },
+ { ISL7998X_REG_P5_ONE_FIELD_MODE_CTL, 0x00 },
+ { ISL7998X_REG_P5_MIPI_INT_HW_TST_CTR, 0x62 },
+ { ISL7998X_REG_P5_TP_GEN_BAR_PATTERN, 0x02 },
+ { ISL7998X_REG_P5_MIPI_PCNT_PSFRM, 0x36 },
+ { ISL7998X_REG_P5_LI_ENGINE_TP_GEN_CTL, 0x00 },
+ { ISL7998X_REG_P5_MIPI_VBLANK_PSFRM, 0x6c },
+ { ISL7998X_REG_P5_LI_ENGINE_CTL_2, 0x00 },
+ { ISL7998X_REG_P5_MIPI_WCNT_1, 0x05 },
+ { ISL7998X_REG_P5_MIPI_WCNT_2, 0xa0 },
+ { ISL7998X_REG_P5_MIPI_DPHY_TIMING_CTL_1, 0x77 },
+ { ISL7998X_REG_P5_MIPI_DPHY_TIMING_CTL_2, 0x17 },
+ { ISL7998X_REG_P5_MIPI_DPHY_TIMING_CTL_3, 0x08 },
+ { ISL7998X_REG_P5_MIPI_DPHY_TIMING_CTL_4, 0x38 },
+ { ISL7998X_REG_P5_MIPI_DPHY_TIMING_CTL_5, 0x14 },
+ { ISL7998X_REG_P5_MIPI_DPHY_TIMING_CTL_6, 0xf6 },
+ { ISL7998X_REG_P5_MIPI_DPHY_PARAMS_1, 0x00 },
+ { ISL7998X_REG_P5_MIPI_DPHY_SOT_PERIOD, 0x17 },
+ { ISL7998X_REG_P5_MIPI_DPHY_EOT_PERIOD, 0x0a },
+ { ISL7998X_REG_P5_MIPI_DPHY_PARAMS_2, 0x71 },
+ { ISL7998X_REG_P5_MIPI_DPHY_TIMING_CTL_7, 0x7a },
+ { ISL7998X_REG_P5_MIPI_DPHY_TIMING_CTL_8, 0x0f },
+ { ISL7998X_REG_P5_MIPI_DPHY_TIMING_CTL_9, 0x8c },
+ { ISL7998X_REG_P5_MIPI_SP_HS_TRL_CTL, 0x08 },
+ { ISL7998X_REG_P5_FIFO_THRSH_CNT_1, 0x01 },
+ { ISL7998X_REG_P5_FIFO_THRSH_CNT_2, 0x0e },
+ { ISL7998X_REG_P5_TP_GEN_RND_SYNC_CTL_1, 0x00 },
+ { ISL7998X_REG_P5_TP_GEN_RND_SYNC_CTL_2, 0x00 },
+ { ISL7998X_REG_P5_TOTAL_PF_LINE_CNT_1, 0x03 },
+ { ISL7998X_REG_P5_TOTAL_PF_LINE_CNT_2, 0xc0 },
+ { ISL7998X_REG_P5_H_LINE_CNT_1, 0x06 },
+ { ISL7998X_REG_P5_H_LINE_CNT_2, 0xb3 },
+ { ISL7998X_REG_P5_HIST_LINE_CNT_1, 0x00 },
+ { ISL7998X_REG_P5_HIST_LINE_CNT_2, 0xf1 },
+ { ISL7998X_REG_P5_LI_ENGINE_FIFO_CTL, 0x00 },
+ { ISL7998X_REG_P5_MIPI_ANA, 0x00 },
+ /*
+ * Wait a bit after reset so that the chip can capture a frame
+ * and update internal line counters.
+ */
+ { ISL7998X_REG_P0_SW_RESET_CTL, 0x00, 50 },
+};
+
+enum isl7998x_pads {
+ ISL7998X_PAD_OUT,
+ ISL7998X_PAD_VIN1,
+ ISL7998X_PAD_VIN2,
+ ISL7998X_PAD_VIN3,
+ ISL7998X_PAD_VIN4,
+ ISL7998X_NUM_PADS
+};
+
+struct isl7998x_datafmt {
+ u32 code;
+ enum v4l2_colorspace colorspace;
+};
+
+static const struct isl7998x_datafmt isl7998x_colour_fmts[] = {
+ { MEDIA_BUS_FMT_UYVY8_2X8, V4L2_COLORSPACE_SRGB },
+};
+
+/* Menu items for LINK_FREQ V4L2 control */
+static const s64 link_freq_menu_items[] = {
+ /* 1 channel, 1 lane or 2 channels, 2 lanes */
+ 108000000,
+ /* 2 channels, 1 lane or 4 channels, 2 lanes */
+ 216000000,
+ /* 4 channels, 1 lane */
+ 432000000,
+};
+
+/* Menu items for TEST_PATTERN V4L2 control */
+static const char * const isl7998x_test_pattern_menu[] = {
+ "Disabled",
+ "Enabled",
+};
+
+static const char * const isl7998x_test_pattern_bars[] = {
+ "bbbbwb", "bbbwwb", "bbwbwb", "bbwwwb",
+};
+
+static const char * const isl7998x_test_pattern_colors[] = {
+ "Yellow", "Blue", "Green", "Pink",
+};
+
+struct isl7998x_mode {
+ unsigned int width;
+ unsigned int height;
+ enum v4l2_field field;
+};
+
+static const struct isl7998x_mode supported_modes[] = {
+ {
+ .width = 720,
+ .height = 576,
+ .field = V4L2_FIELD_SEQ_TB,
+ },
+ {
+ .width = 720,
+ .height = 480,
+ .field = V4L2_FIELD_SEQ_BT,
+ },
+};
+
+static const struct isl7998x_video_std {
+ const v4l2_std_id norm;
+ unsigned int id;
+ const struct isl7998x_mode *mode;
+} isl7998x_std_res[] = {
+ { V4L2_STD_NTSC_443,
+ ISL7998X_REG_PX_DEC_SDT_STANDARD_NTSC_443,
+ &supported_modes[1] },
+ { V4L2_STD_PAL_M,
+ ISL7998X_REG_PX_DEC_SDT_STANDARD_PAL_M,
+ &supported_modes[1] },
+ { V4L2_STD_PAL_Nc,
+ ISL7998X_REG_PX_DEC_SDT_STANDARD_PAL_CN,
+ &supported_modes[0] },
+ { V4L2_STD_PAL_N,
+ ISL7998X_REG_PX_DEC_SDT_STANDARD_PAL,
+ &supported_modes[0] },
+ { V4L2_STD_PAL_60,
+ ISL7998X_REG_PX_DEC_SDT_STANDARD_PAL_60,
+ &supported_modes[1] },
+ { V4L2_STD_NTSC,
+ ISL7998X_REG_PX_DEC_SDT_STANDARD_NTSC_M,
+ &supported_modes[1] },
+ { V4L2_STD_PAL,
+ ISL7998X_REG_PX_DEC_SDT_STANDARD_PAL,
+ &supported_modes[0] },
+ { V4L2_STD_SECAM,
+ ISL7998X_REG_PX_DEC_SDT_STANDARD_SECAM,
+ &supported_modes[0] },
+ { V4L2_STD_UNKNOWN,
+ ISL7998X_REG_PX_DEC_SDT_STANDARD_UNKNOWN,
+ &supported_modes[1] },
+};
+
+struct isl7998x {
+ struct v4l2_subdev subdev;
+ struct regmap *regmap;
+ struct gpio_desc *pd_gpio;
+ struct gpio_desc *rstb_gpio;
+ unsigned int nr_mipi_lanes;
+ u32 nr_inputs;
+
+ const struct isl7998x_datafmt *fmt;
+ v4l2_std_id norm;
+ struct media_pad pads[ISL7998X_NUM_PADS];
+
+ int enabled;
+
+ /* protect fmt, norm, enabled */
+ struct mutex lock;
+
+ struct v4l2_ctrl_handler ctrl_handler;
+ /* protect ctrl_handler */
+ struct mutex ctrl_mutex;
+
+ /* V4L2 Controls */
+ struct v4l2_ctrl *link_freq;
+ u8 test_pattern;
+ u8 test_pattern_bars;
+ u8 test_pattern_chans;
+ u8 test_pattern_color;
+};
+
+static struct isl7998x *sd_to_isl7998x(struct v4l2_subdev *sd)
+{
+ return container_of(sd, struct isl7998x, subdev);
+}
+
+static struct isl7998x *i2c_to_isl7998x(const struct i2c_client *client)
+{
+ return sd_to_isl7998x(i2c_get_clientdata(client));
+}
+
+static unsigned int isl7998x_norm_to_val(v4l2_std_id norm)
+{
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(isl7998x_std_res); i++)
+ if (isl7998x_std_res[i].norm & norm)
+ break;
+ if (i == ARRAY_SIZE(isl7998x_std_res))
+ return ISL7998X_REG_PX_DEC_SDT_STANDARD_UNKNOWN;
+
+ return isl7998x_std_res[i].id;
+}
+
+static const struct isl7998x_mode *isl7998x_norm_to_mode(v4l2_std_id norm)
+{
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(isl7998x_std_res); i++)
+ if (isl7998x_std_res[i].norm & norm)
+ break;
+ /* Use NTSC default resolution during standard detection */
+ if (i == ARRAY_SIZE(isl7998x_std_res))
+ return &supported_modes[1];
+
+ return isl7998x_std_res[i].mode;
+}
+
+static int isl7998x_get_nr_inputs(struct device_node *of_node)
+{
+ struct device_node *port;
+ unsigned int inputs = 0;
+ unsigned int i;
+
+ if (of_graph_get_endpoint_count(of_node) > ISL7998X_NUM_PADS)
+ return -EINVAL;
+
+ /*
+ * The driver does not provide means to remap the input ports. It
+ * always configures input ports to start from VID1. Ensure that the
+ * device tree is correct.
+ */
+ for (i = ISL7998X_PAD_VIN1; i <= ISL7998X_PAD_VIN4; i++) {
+ port = of_graph_get_port_by_id(of_node, i);
+ if (!port)
+ continue;
+
+ inputs |= BIT(i);
+ of_node_put(port);
+ }
+
+ switch (inputs) {
+ case BIT(ISL7998X_PAD_VIN1):
+ return 1;
+ case BIT(ISL7998X_PAD_VIN1) | BIT(ISL7998X_PAD_VIN2):
+ return 2;
+ case BIT(ISL7998X_PAD_VIN1) | BIT(ISL7998X_PAD_VIN2) |
+ BIT(ISL7998X_PAD_VIN3) | BIT(ISL7998X_PAD_VIN4):
+ return 4;
+ default:
+ return -EINVAL;
+ }
+}
+
+static int isl7998x_wait_power_on(struct isl7998x *isl7998x)
+{
+ struct device *dev = isl7998x->subdev.dev;
+ u32 chip_id;
+ int ret;
+ int err;
+
+ ret = read_poll_timeout(regmap_read, err, !err, 2000, 20000, false,
+ isl7998x->regmap,
+ ISL7998X_REG_P0_PRODUCT_ID_CODE, &chip_id);
+ if (ret) {
+ dev_err(dev, "timeout while waiting for ISL7998X\n");
+ return ret;
+ }
+
+ dev_dbg(dev, "Found ISL799%x\n", chip_id);
+
+ return ret;
+}
+
+static int isl7998x_set_standard(struct isl7998x *isl7998x, v4l2_std_id norm)
+{
+ const struct isl7998x_mode *mode = isl7998x_norm_to_mode(norm);
+ unsigned int val = isl7998x_norm_to_val(norm);
+ unsigned int width = mode->width;
+ unsigned int i;
+ int ret;
+
+ for (i = 0; i < ISL7998X_INPUTS; i++) {
+ ret = regmap_write_bits(isl7998x->regmap,
+ ISL7998X_REG_PX_DEC_SDT(i + 1),
+ ISL7998X_REG_PX_DEC_SDT_STANDARD,
+ val);
+ if (ret)
+ return ret;
+ }
+
+ ret = regmap_write(isl7998x->regmap,
+ ISL7998X_REG_P5_LI_ENGINE_LINE_CTL,
+ 0x20 | ((width >> 7) & 0x1f));
+ if (ret)
+ return ret;
+
+ ret = regmap_write(isl7998x->regmap,
+ ISL7998X_REG_P5_LI_ENGINE_PIC_WIDTH,
+ (width << 1) & 0xff);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+static int isl7998x_init(struct isl7998x *isl7998x)
+{
+ const unsigned int lanes = isl7998x->nr_mipi_lanes;
+ const u32 isl7998x_video_in_chan_map[] = { 0x00, 0x11, 0x02, 0x02 };
+ const struct reg_sequence isl7998x_init_seq_custom[] = {
+ { ISL7998X_REG_P0_VIDEO_IN_CHAN_CTL,
+ isl7998x_video_in_chan_map[isl7998x->nr_inputs - 1] },
+ { ISL7998X_REG_P0_CLK_CTL_4,
+ (lanes == 1) ? 0x40 : 0x41 },
+ { ISL7998X_REG_P5_LI_ENGINE_CTL,
+ (lanes == 1) ? 0x01 : 0x02 },
+ };
+ struct device *dev = isl7998x->subdev.dev;
+ struct regmap *regmap = isl7998x->regmap;
+ int ret;
+
+ dev_dbg(dev, "configuring %d lanes for %d inputs (norm %s)\n",
+ isl7998x->nr_mipi_lanes, isl7998x->nr_inputs,
+ v4l2_norm_to_name(isl7998x->norm));
+
+ ret = regmap_register_patch(regmap, isl7998x_init_seq_1,
+ ARRAY_SIZE(isl7998x_init_seq_1));
+ if (ret)
+ return ret;
+
+ mutex_lock(&isl7998x->lock);
+ ret = isl7998x_set_standard(isl7998x, isl7998x->norm);
+ mutex_unlock(&isl7998x->lock);
+ if (ret)
+ return ret;
+
+ ret = regmap_register_patch(regmap, isl7998x_init_seq_custom,
+ ARRAY_SIZE(isl7998x_init_seq_custom));
+ if (ret)
+ return ret;
+
+ return regmap_register_patch(regmap, isl7998x_init_seq_2,
+ ARRAY_SIZE(isl7998x_init_seq_2));
+}
+
+static int isl7998x_set_test_pattern(struct isl7998x *isl7998x)
+{
+ const struct reg_sequence isl7998x_init_seq_tpg_off[] = {
+ { ISL7998X_REG_P5_LI_ENGINE_TP_GEN_CTL, 0 },
+ { ISL7998X_REG_P5_LI_ENGINE_CTL_2, 0 }
+ };
+ const struct reg_sequence isl7998x_init_seq_tpg_on[] = {
+ { ISL7998X_REG_P5_TP_GEN_BAR_PATTERN,
+ isl7998x->test_pattern_bars << 6 },
+ { ISL7998X_REG_P5_LI_ENGINE_CTL_2,
+ isl7998x->norm & V4L2_STD_PAL ? BIT(2) : 0 },
+ { ISL7998X_REG_P5_LI_ENGINE_TP_GEN_CTL,
+ (isl7998x->test_pattern_chans << 4) |
+ (isl7998x->test_pattern_color << 2) }
+ };
+ struct device *dev = isl7998x->subdev.dev;
+ struct regmap *regmap = isl7998x->regmap;
+ int ret;
+
+ if (pm_runtime_get_if_in_use(dev) <= 0)
+ return 0;
+
+ if (isl7998x->test_pattern != 0) {
+ dev_dbg(dev, "enabling test pattern: channels 0x%x, %s, %s\n",
+ isl7998x->test_pattern_chans,
+ isl7998x_test_pattern_bars[isl7998x->test_pattern_bars],
+ isl7998x_test_pattern_colors[isl7998x->test_pattern_color]);
+ ret = regmap_register_patch(regmap, isl7998x_init_seq_tpg_on,
+ ARRAY_SIZE(isl7998x_init_seq_tpg_on));
+ } else {
+ ret = regmap_register_patch(regmap, isl7998x_init_seq_tpg_off,
+ ARRAY_SIZE(isl7998x_init_seq_tpg_off));
+ }
+
+ pm_runtime_put(dev);
+
+ return ret;
+}
+
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+static int isl7998x_g_register(struct v4l2_subdev *sd,
+ struct v4l2_dbg_register *reg)
+{
+ struct isl7998x *isl7998x = sd_to_isl7998x(sd);
+ int ret;
+ u32 val;
+
+ ret = regmap_read(isl7998x->regmap, reg->reg, &val);
+ if (ret)
+ return ret;
+
+ reg->size = 1;
+ reg->val = val;
+
+ return 0;
+}
+
+static int isl7998x_s_register(struct v4l2_subdev *sd,
+ const struct v4l2_dbg_register *reg)
+{
+ struct isl7998x *isl7998x = sd_to_isl7998x(sd);
+
+ return regmap_write(isl7998x->regmap, reg->reg, reg->val);
+}
+#endif
+
+static int isl7998x_g_std(struct v4l2_subdev *sd, v4l2_std_id *norm)
+{
+ struct isl7998x *isl7998x = sd_to_isl7998x(sd);
+
+ mutex_lock(&isl7998x->lock);
+ *norm = isl7998x->norm;
+ mutex_unlock(&isl7998x->lock);
+
+ return 0;
+}
+
+static int isl7998x_s_std(struct v4l2_subdev *sd, v4l2_std_id norm)
+{
+ struct isl7998x *isl7998x = sd_to_isl7998x(sd);
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ struct device *dev = &client->dev;
+ int ret = 0;
+
+ mutex_lock(&isl7998x->lock);
+ if (isl7998x->enabled) {
+ ret = -EBUSY;
+ mutex_unlock(&isl7998x->lock);
+ return ret;
+ }
+ isl7998x->norm = norm;
+ mutex_unlock(&isl7998x->lock);
+
+ if (pm_runtime_get_if_in_use(dev) <= 0)
+ return ret;
+
+ ret = isl7998x_set_standard(isl7998x, norm);
+
+ pm_runtime_put(dev);
+
+ return ret;
+}
+
+static int isl7998x_querystd(struct v4l2_subdev *sd, v4l2_std_id *std)
+{
+ struct isl7998x *isl7998x = sd_to_isl7998x(sd);
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ struct device *dev = &client->dev;
+ unsigned int std_id[ISL7998X_INPUTS];
+ unsigned int i;
+ int ret;
+ u32 reg;
+
+ ret = pm_runtime_resume_and_get(dev);
+ if (ret)
+ return ret;
+
+ dev_dbg(dev, "starting video standard detection\n");
+
+ mutex_lock(&isl7998x->lock);
+ if (isl7998x->enabled) {
+ ret = -EBUSY;
+ goto out_unlock;
+ }
+
+ ret = isl7998x_set_standard(isl7998x, V4L2_STD_UNKNOWN);
+ if (ret)
+ goto out_unlock;
+
+ for (i = 0; i < ISL7998X_INPUTS; i++) {
+ ret = regmap_write(isl7998x->regmap,
+ ISL7998X_REG_PX_DEC_SDTR(i + 1),
+ ISL7998X_REG_PX_DEC_SDTR_ATSTART);
+ if (ret)
+ goto out_reset_std;
+ }
+
+ for (i = 0; i < ISL7998X_INPUTS; i++) {
+ ret = regmap_read_poll_timeout(isl7998x->regmap,
+ ISL7998X_REG_PX_DEC_SDT(i + 1),
+ reg,
+ !(reg & ISL7998X_REG_PX_DEC_SDT_DET),
+ 2000, 500 * USEC_PER_MSEC);
+ if (ret)
+ goto out_reset_std;
+ std_id[i] = FIELD_GET(ISL7998X_REG_PX_DEC_SDT_NOW, reg);
+ }
+
+ /*
+ * According to Renesas FAE, all input cameras must have the
+ * same standard on this chip.
+ */
+ for (i = 0; i < isl7998x->nr_inputs; i++) {
+ dev_dbg(dev, "input %d: detected %s\n",
+ i, v4l2_norm_to_name(isl7998x_std_res[std_id[i]].norm));
+ if (std_id[0] != std_id[i])
+ dev_warn(dev,
+ "incompatible standards: %s on input %d (expected %s)\n",
+ v4l2_norm_to_name(isl7998x_std_res[std_id[i]].norm), i,
+ v4l2_norm_to_name(isl7998x_std_res[std_id[0]].norm));
+ }
+
+ *std = isl7998x_std_res[std_id[0]].norm;
+
+out_reset_std:
+ isl7998x_set_standard(isl7998x, isl7998x->norm);
+out_unlock:
+ mutex_unlock(&isl7998x->lock);
+ pm_runtime_put(dev);
+
+ return ret;
+}
+
+static int isl7998x_g_tvnorms(struct v4l2_subdev *sd, v4l2_std_id *std)
+{
+ *std = V4L2_STD_ALL;
+
+ return 0;
+}
+
+static int isl7998x_g_input_status(struct v4l2_subdev *sd, u32 *status)
+{
+ struct isl7998x *isl7998x = sd_to_isl7998x(sd);
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ struct device *dev = &client->dev;
+ unsigned int i;
+ int ret = 0;
+ u32 reg;
+
+ if (!pm_runtime_active(dev)) {
+ *status |= V4L2_IN_ST_NO_POWER;
+ return 0;
+ }
+
+ for (i = 0; i < isl7998x->nr_inputs; i++) {
+ ret = regmap_read(isl7998x->regmap,
+ ISL7998X_REG_PX_DEC_STATUS_1(i + 1), ®);
+ if (!ret) {
+ if (reg & ISL7998X_REG_PX_DEC_STATUS_1_VDLOSS)
+ *status |= V4L2_IN_ST_NO_SIGNAL;
+ if (!(reg & ISL7998X_REG_PX_DEC_STATUS_1_HLOCK))
+ *status |= V4L2_IN_ST_NO_H_LOCK;
+ if (!(reg & ISL7998X_REG_PX_DEC_STATUS_1_VLOCK))
+ *status |= V4L2_IN_ST_NO_V_LOCK;
+ }
+ }
+
+ return ret;
+}
+
+static int isl7998x_s_stream(struct v4l2_subdev *sd, int enable)
+{
+ struct isl7998x *isl7998x = sd_to_isl7998x(sd);
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ struct device *dev = &client->dev;
+ int ret = 0;
+ u32 reg;
+
+ dev_dbg(dev, "stream %s\n", enable ? "ON" : "OFF");
+
+ mutex_lock(&isl7998x->lock);
+ if (isl7998x->enabled == enable)
+ goto out;
+ isl7998x->enabled = enable;
+
+ if (enable) {
+ ret = isl7998x_set_test_pattern(isl7998x);
+ if (ret)
+ goto out;
+ }
+
+ regmap_read(isl7998x->regmap,
+ ISL7998X_REG_P5_LI_ENGINE_CTL, ®);
+ if (enable)
+ reg &= ~BIT(7);
+ else
+ reg |= BIT(7);
+ ret = regmap_write(isl7998x->regmap,
+ ISL7998X_REG_P5_LI_ENGINE_CTL, reg);
+
+out:
+ mutex_unlock(&isl7998x->lock);
+
+ return ret;
+}
+
+static int isl7998x_pre_streamon(struct v4l2_subdev *sd, u32 flags)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ struct device *dev = &client->dev;
+
+ return pm_runtime_resume_and_get(dev);
+}
+
+static int isl7998x_post_streamoff(struct v4l2_subdev *sd)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ struct device *dev = &client->dev;
+
+ pm_runtime_put(dev);
+
+ return 0;
+}
+
+static int isl7998x_enum_mbus_code(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_mbus_code_enum *code)
+{
+ if (code->index >= ARRAY_SIZE(isl7998x_colour_fmts))
+ return -EINVAL;
+
+ code->code = isl7998x_colour_fmts[code->index].code;
+
+ return 0;
+}
+
+static int isl7998x_enum_frame_size(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_frame_size_enum *fse)
+{
+ if (fse->index >= ARRAY_SIZE(supported_modes))
+ return -EINVAL;
+
+ if (fse->code != isl7998x_colour_fmts[0].code)
+ return -EINVAL;
+
+ fse->min_width = supported_modes[fse->index].width;
+ fse->max_width = fse->min_width;
+ fse->min_height = supported_modes[fse->index].height;
+ fse->max_height = fse->min_height;
+
+ return 0;
+}
+
+static int isl7998x_get_fmt(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_format *format)
+{
+ struct isl7998x *isl7998x = sd_to_isl7998x(sd);
+ struct v4l2_mbus_framefmt *mf = &format->format;
+ const struct isl7998x_mode *mode;
+
+ mutex_lock(&isl7998x->lock);
+
+ if (format->which == V4L2_SUBDEV_FORMAT_TRY) {
+ format->format = *v4l2_subdev_get_try_format(sd, sd_state,
+ format->pad);
+ goto out;
+ }
+
+ mode = isl7998x_norm_to_mode(isl7998x->norm);
+
+ mf->width = mode->width;
+ mf->height = mode->height;
+ mf->code = isl7998x->fmt->code;
+ mf->field = mode->field;
+ mf->colorspace = 0;
+
+out:
+ mutex_unlock(&isl7998x->lock);
+
+ return 0;
+}
+
+static int isl7998x_set_fmt(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_format *format)
+{
+ struct isl7998x *isl7998x = sd_to_isl7998x(sd);
+ struct v4l2_mbus_framefmt *mf = &format->format;
+ const struct isl7998x_mode *mode;
+
+ mutex_lock(&isl7998x->lock);
+
+ mode = isl7998x_norm_to_mode(isl7998x->norm);
+
+ mf->width = mode->width;
+ mf->height = mode->height;
+ mf->code = isl7998x->fmt->code;
+ mf->field = mode->field;
+
+ if (format->which == V4L2_SUBDEV_FORMAT_TRY)
+ *v4l2_subdev_get_try_format(sd, sd_state, format->pad) = format->format;
+
+ mutex_unlock(&isl7998x->lock);
+
+ return 0;
+}
+
+static int isl7998x_set_ctrl(struct v4l2_ctrl *ctrl)
+{
+ struct isl7998x *isl7998x = container_of(ctrl->handler,
+ struct isl7998x, ctrl_handler);
+ int ret = 0;
+
+ switch (ctrl->id) {
+ case V4L2_CID_TEST_PATTERN_BARS:
+ mutex_lock(&isl7998x->lock);
+ isl7998x->test_pattern_bars = ctrl->val & 0x3;
+ ret = isl7998x_set_test_pattern(isl7998x);
+ mutex_unlock(&isl7998x->lock);
+ break;
+ case V4L2_CID_TEST_PATTERN_CHANNELS:
+ mutex_lock(&isl7998x->lock);
+ isl7998x->test_pattern_chans = ctrl->val & 0xf;
+ ret = isl7998x_set_test_pattern(isl7998x);
+ mutex_unlock(&isl7998x->lock);
+ break;
+ case V4L2_CID_TEST_PATTERN_COLOR:
+ mutex_lock(&isl7998x->lock);
+ isl7998x->test_pattern_color = ctrl->val & 0x3;
+ ret = isl7998x_set_test_pattern(isl7998x);
+ mutex_unlock(&isl7998x->lock);
+ break;
+ case V4L2_CID_TEST_PATTERN:
+ mutex_lock(&isl7998x->lock);
+ isl7998x->test_pattern = ctrl->val;
+ ret = isl7998x_set_test_pattern(isl7998x);
+ mutex_unlock(&isl7998x->lock);
+ break;
+ }
+
+ return ret;
+}
+
+static const struct v4l2_subdev_core_ops isl7998x_subdev_core_ops = {
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+ .g_register = isl7998x_g_register,
+ .s_register = isl7998x_s_register,
+#endif
+};
+
+static const struct v4l2_subdev_video_ops isl7998x_subdev_video_ops = {
+ .g_std = isl7998x_g_std,
+ .s_std = isl7998x_s_std,
+ .querystd = isl7998x_querystd,
+ .g_tvnorms = isl7998x_g_tvnorms,
+ .g_input_status = isl7998x_g_input_status,
+ .s_stream = isl7998x_s_stream,
+ .pre_streamon = isl7998x_pre_streamon,
+ .post_streamoff = isl7998x_post_streamoff,
+};
+
+static const struct v4l2_subdev_pad_ops isl7998x_subdev_pad_ops = {
+ .enum_mbus_code = isl7998x_enum_mbus_code,
+ .enum_frame_size = isl7998x_enum_frame_size,
+ .get_fmt = isl7998x_get_fmt,
+ .set_fmt = isl7998x_set_fmt,
+};
+
+static const struct v4l2_subdev_ops isl7998x_subdev_ops = {
+ .core = &isl7998x_subdev_core_ops,
+ .video = &isl7998x_subdev_video_ops,
+ .pad = &isl7998x_subdev_pad_ops,
+};
+
+static const struct media_entity_operations isl7998x_entity_ops = {
+ .link_validate = v4l2_subdev_link_validate,
+};
+
+static const struct v4l2_ctrl_ops isl7998x_ctrl_ops = {
+ .s_ctrl = isl7998x_set_ctrl,
+};
+
+static const struct v4l2_ctrl_config isl7998x_ctrls[] = {
+ {
+ .ops = &isl7998x_ctrl_ops,
+ .id = V4L2_CID_TEST_PATTERN_BARS,
+ .type = V4L2_CTRL_TYPE_MENU,
+ .name = "Test Pattern Bars",
+ .max = ARRAY_SIZE(isl7998x_test_pattern_bars) - 1,
+ .def = 0,
+ .qmenu = isl7998x_test_pattern_bars,
+ }, {
+ .ops = &isl7998x_ctrl_ops,
+ .id = V4L2_CID_TEST_PATTERN_CHANNELS,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "Test Pattern Channels",
+ .min = 0,
+ .max = 0xf,
+ .step = 1,
+ .def = 0xf,
+ .flags = 0,
+ }, {
+ .ops = &isl7998x_ctrl_ops,
+ .id = V4L2_CID_TEST_PATTERN_COLOR,
+ .type = V4L2_CTRL_TYPE_MENU,
+ .name = "Test Pattern Color",
+ .max = ARRAY_SIZE(isl7998x_test_pattern_colors) - 1,
+ .def = 0,
+ .qmenu = isl7998x_test_pattern_colors,
+ },
+};
+
+#define ISL7998X_REG_DECODER_ACA_READABLE_RANGE(page) \
+ /* Decoder range */ \
+ regmap_reg_range(ISL7998X_REG_PX_DEC_INPUT_FMT(page), \
+ ISL7998X_REG_PX_DEC_HS_DELAY_CTL(page)), \
+ regmap_reg_range(ISL7998X_REG_PX_DEC_ANCTL(page), \
+ ISL7998X_REG_PX_DEC_CSC_CTL(page)), \
+ regmap_reg_range(ISL7998X_REG_PX_DEC_BRIGHT(page), \
+ ISL7998X_REG_PX_DEC_HUE(page)), \
+ regmap_reg_range(ISL7998X_REG_PX_DEC_VERT_PEAK(page), \
+ ISL7998X_REG_PX_DEC_CORING(page)), \
+ regmap_reg_range(ISL7998X_REG_PX_DEC_SDT(page), \
+ ISL7998X_REG_PX_DEC_SDTR(page)), \
+ regmap_reg_range(ISL7998X_REG_PX_DEC_CLMPG(page), \
+ ISL7998X_REG_PX_DEC_DATA_CONV(page)), \
+ regmap_reg_range(ISL7998X_REG_PX_DEC_INTERNAL_TEST(page), \
+ ISL7998X_REG_PX_DEC_INTERNAL_TEST(page)), \
+ regmap_reg_range(ISL7998X_REG_PX_DEC_H_DELAY_CTL(page), \
+ ISL7998X_REG_PX_DEC_H_DELAY_II_LOW(page)), \
+ /* ACA range */ \
+ regmap_reg_range(ISL7998X_REG_PX_ACA_CTL_1(page), \
+ ISL7998X_REG_PX_ACA_HIST_WIN_V_SZ2(page)), \
+ regmap_reg_range(ISL7998X_REG_PX_ACA_Y_AVG(page), \
+ ISL7998X_REG_PX_ACA_CTL_4(page)), \
+ regmap_reg_range(ISL7998X_REG_PX_ACA_FLEX_WIN_HIST(page), \
+ ISL7998X_REG_PX_ACA_XFER_HIST_HOST(page)), \
+ regmap_reg_range(ISL7998X_REG_PX_DEC_PAGE(page), \
+ ISL7998X_REG_PX_DEC_PAGE(page))
+
+#define ISL7998X_REG_DECODER_ACA_WRITEABLE_RANGE(page) \
+ /* Decoder range */ \
+ regmap_reg_range(ISL7998X_REG_PX_DEC_INPUT_FMT(page), \
+ ISL7998X_REG_PX_DEC_INPUT_FMT(page)), \
+ regmap_reg_range(ISL7998X_REG_PX_DEC_HS_DELAY_CTL(page), \
+ ISL7998X_REG_PX_DEC_HS_DELAY_CTL(page)), \
+ regmap_reg_range(ISL7998X_REG_PX_DEC_ANCTL(page), \
+ ISL7998X_REG_PX_DEC_CSC_CTL(page)), \
+ regmap_reg_range(ISL7998X_REG_PX_DEC_BRIGHT(page), \
+ ISL7998X_REG_PX_DEC_HUE(page)), \
+ regmap_reg_range(ISL7998X_REG_PX_DEC_VERT_PEAK(page), \
+ ISL7998X_REG_PX_DEC_CORING(page)), \
+ regmap_reg_range(ISL7998X_REG_PX_DEC_SDT(page), \
+ ISL7998X_REG_PX_DEC_SDTR(page)), \
+ regmap_reg_range(ISL7998X_REG_PX_DEC_CLMPG(page), \
+ ISL7998X_REG_PX_DEC_MISC3(page)), \
+ regmap_reg_range(ISL7998X_REG_PX_DEC_CLMD(page), \
+ ISL7998X_REG_PX_DEC_DATA_CONV(page)), \
+ regmap_reg_range(ISL7998X_REG_PX_DEC_INTERNAL_TEST(page), \
+ ISL7998X_REG_PX_DEC_INTERNAL_TEST(page)), \
+ regmap_reg_range(ISL7998X_REG_PX_DEC_H_DELAY_CTL(page), \
+ ISL7998X_REG_PX_DEC_H_DELAY_II_LOW(page)), \
+ /* ACA range */ \
+ regmap_reg_range(ISL7998X_REG_PX_ACA_CTL_1(page), \
+ ISL7998X_REG_PX_ACA_HIST_WIN_V_SZ2(page)), \
+ regmap_reg_range(ISL7998X_REG_PX_ACA_CTL_2(page), \
+ ISL7998X_REG_PX_ACA_CTL_4(page)), \
+ regmap_reg_range(ISL7998X_REG_PX_ACA_FLEX_WIN_HIST(page), \
+ ISL7998X_REG_PX_ACA_HIST_DATA_LO(page)), \
+ regmap_reg_range(ISL7998X_REG_PX_ACA_XFER_HIST_HOST(page), \
+ ISL7998X_REG_PX_ACA_XFER_HIST_HOST(page)), \
+ regmap_reg_range(ISL7998X_REG_PX_DEC_PAGE(page), \
+ ISL7998X_REG_PX_DEC_PAGE(page))
+
+#define ISL7998X_REG_DECODER_ACA_VOLATILE_RANGE(page) \
+ /* Decoder range */ \
+ regmap_reg_range(ISL7998X_REG_PX_DEC_STATUS_1(page), \
+ ISL7998X_REG_PX_DEC_STATUS_1(page)), \
+ regmap_reg_range(ISL7998X_REG_PX_DEC_SDT(page), \
+ ISL7998X_REG_PX_DEC_SDT(page)), \
+ regmap_reg_range(ISL7998X_REG_PX_DEC_MVSN(page), \
+ ISL7998X_REG_PX_DEC_HFREF(page)), \
+ /* ACA range */ \
+ regmap_reg_range(ISL7998X_REG_PX_ACA_Y_AVG(page), \
+ ISL7998X_REG_PX_ACA_Y_HIGH(page)), \
+ regmap_reg_range(ISL7998X_REG_PX_ACA_HIST_DATA_LO(page), \
+ ISL7998X_REG_PX_ACA_FLEX_WIN_CR_CLR(page))
+
+static const struct regmap_range isl7998x_readable_ranges[] = {
+ regmap_reg_range(ISL7998X_REG_P0_PRODUCT_ID_CODE,
+ ISL7998X_REG_P0_IRQ_SYNC_CTL),
+ regmap_reg_range(ISL7998X_REG_P0_INTERRUPT_STATUS,
+ ISL7998X_REG_P0_CLOCK_DELAY),
+ regmap_reg_range(ISL7998X_REG_PX_DEC_PAGE(0),
+ ISL7998X_REG_PX_DEC_PAGE(0)),
+
+ ISL7998X_REG_DECODER_ACA_READABLE_RANGE(1),
+ ISL7998X_REG_DECODER_ACA_READABLE_RANGE(2),
+ ISL7998X_REG_DECODER_ACA_READABLE_RANGE(3),
+ ISL7998X_REG_DECODER_ACA_READABLE_RANGE(4),
+
+ regmap_reg_range(ISL7998X_REG_P5_LI_ENGINE_CTL,
+ ISL7998X_REG_P5_MIPI_SP_HS_TRL_CTL),
+ regmap_reg_range(ISL7998X_REG_P5_FIFO_THRSH_CNT_1,
+ ISL7998X_REG_P5_PLL_ANA),
+ regmap_reg_range(ISL7998X_REG_P5_TOTAL_PF_LINE_CNT_1,
+ ISL7998X_REG_P5_HIST_LINE_CNT_2),
+ regmap_reg_range(ISL7998X_REG_PX_DEC_PAGE(5),
+ ISL7998X_REG_PX_DEC_PAGE(5)),
+};
+
+static const struct regmap_range isl7998x_writeable_ranges[] = {
+ regmap_reg_range(ISL7998X_REG_P0_SW_RESET_CTL,
+ ISL7998X_REG_P0_IRQ_SYNC_CTL),
+ regmap_reg_range(ISL7998X_REG_P0_CHAN_1_IRQ,
+ ISL7998X_REG_P0_SHORT_DIAG_IRQ_EN),
+ regmap_reg_range(ISL7998X_REG_P0_CLOCK_DELAY,
+ ISL7998X_REG_P0_CLOCK_DELAY),
+ regmap_reg_range(ISL7998X_REG_PX_DEC_PAGE(0),
+ ISL7998X_REG_PX_DEC_PAGE(0)),
+
+ ISL7998X_REG_DECODER_ACA_WRITEABLE_RANGE(1),
+ ISL7998X_REG_DECODER_ACA_WRITEABLE_RANGE(2),
+ ISL7998X_REG_DECODER_ACA_WRITEABLE_RANGE(3),
+ ISL7998X_REG_DECODER_ACA_WRITEABLE_RANGE(4),
+
+ regmap_reg_range(ISL7998X_REG_P5_LI_ENGINE_CTL,
+ ISL7998X_REG_P5_ESC_MODE_TIME_CTL),
+ regmap_reg_range(ISL7998X_REG_P5_MIPI_SP_HS_TRL_CTL,
+ ISL7998X_REG_P5_PLL_ANA),
+ regmap_reg_range(ISL7998X_REG_P5_TOTAL_PF_LINE_CNT_1,
+ ISL7998X_REG_P5_HIST_LINE_CNT_2),
+ regmap_reg_range(ISL7998X_REG_PX_DEC_PAGE(5),
+ ISL7998X_REG_PX_DEC_PAGE(5)),
+
+ ISL7998X_REG_DECODER_ACA_WRITEABLE_RANGE(0xf),
+};
+
+static const struct regmap_range isl7998x_volatile_ranges[] = {
+ /* Product id code register is used to check availability */
+ regmap_reg_range(ISL7998X_REG_P0_PRODUCT_ID_CODE,
+ ISL7998X_REG_P0_PRODUCT_ID_CODE),
+ regmap_reg_range(ISL7998X_REG_P0_MPP1_SYNC_CTL,
+ ISL7998X_REG_P0_IRQ_SYNC_CTL),
+ regmap_reg_range(ISL7998X_REG_P0_INTERRUPT_STATUS,
+ ISL7998X_REG_P0_INTERRUPT_STATUS),
+ regmap_reg_range(ISL7998X_REG_P0_CHAN_1_STATUS,
+ ISL7998X_REG_P0_SHORT_DIAG_STATUS),
+
+ ISL7998X_REG_DECODER_ACA_VOLATILE_RANGE(1),
+ ISL7998X_REG_DECODER_ACA_VOLATILE_RANGE(2),
+ ISL7998X_REG_DECODER_ACA_VOLATILE_RANGE(3),
+ ISL7998X_REG_DECODER_ACA_VOLATILE_RANGE(4),
+
+ regmap_reg_range(ISL7998X_REG_P5_AUTO_TEST_ERR_DET,
+ ISL7998X_REG_P5_PIC_HEIGHT_LOW),
+};
+
+static const struct regmap_access_table isl7998x_readable_table = {
+ .yes_ranges = isl7998x_readable_ranges,
+ .n_yes_ranges = ARRAY_SIZE(isl7998x_readable_ranges),
+};
+
+static const struct regmap_access_table isl7998x_writeable_table = {
+ .yes_ranges = isl7998x_writeable_ranges,
+ .n_yes_ranges = ARRAY_SIZE(isl7998x_writeable_ranges),
+};
+
+static const struct regmap_access_table isl7998x_volatile_table = {
+ .yes_ranges = isl7998x_volatile_ranges,
+ .n_yes_ranges = ARRAY_SIZE(isl7998x_volatile_ranges),
+};
+
+static const struct regmap_range_cfg isl7998x_ranges[] = {
+ {
+ .range_min = ISL7998X_REG_PN_BASE(0),
+ .range_max = ISL7998X_REG_PX_ACA_XFER_HIST_HOST(0xf),
+ .selector_reg = ISL7998X_REG_PX_DEC_PAGE(0),
+ .selector_mask = ISL7998X_REG_PX_DEC_PAGE_MASK,
+ .window_start = 0,
+ .window_len = 256,
+ }
+};
+
+static const struct regmap_config isl7998x_regmap = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .max_register = ISL7998X_REG_PX_ACA_XFER_HIST_HOST(0xf),
+ .ranges = isl7998x_ranges,
+ .num_ranges = ARRAY_SIZE(isl7998x_ranges),
+ .rd_table = &isl7998x_readable_table,
+ .wr_table = &isl7998x_writeable_table,
+ .volatile_table = &isl7998x_volatile_table,
+ .cache_type = REGCACHE_RBTREE,
+};
+
+static int isl7998x_mc_init(struct isl7998x *isl7998x)
+{
+ unsigned int i;
+
+ isl7998x->subdev.entity.ops = &isl7998x_entity_ops;
+ isl7998x->subdev.entity.function = MEDIA_ENT_F_VID_IF_BRIDGE;
+
+ isl7998x->pads[ISL7998X_PAD_OUT].flags = MEDIA_PAD_FL_SOURCE;
+ for (i = ISL7998X_PAD_VIN1; i < ISL7998X_NUM_PADS; i++)
+ isl7998x->pads[i].flags = MEDIA_PAD_FL_SINK;
+
+ return media_entity_pads_init(&isl7998x->subdev.entity,
+ ISL7998X_NUM_PADS,
+ isl7998x->pads);
+}
+
+static int get_link_freq_menu_index(unsigned int lanes,
+ unsigned int inputs)
+{
+ int ret = -EINVAL;
+
+ switch (lanes) {
+ case 1:
+ if (inputs == 1)
+ ret = 0;
+ if (inputs == 2)
+ ret = 1;
+ if (inputs == 4)
+ ret = 2;
+ break;
+ case 2:
+ if (inputs == 2)
+ ret = 0;
+ if (inputs == 4)
+ ret = 1;
+ break;
+ default:
+ break;
+ }
+
+ return ret;
+}
+
+static void isl7998x_remove_controls(struct isl7998x *isl7998x)
+{
+ v4l2_ctrl_handler_free(&isl7998x->ctrl_handler);
+ mutex_destroy(&isl7998x->ctrl_mutex);
+}
+
+static int isl7998x_init_controls(struct isl7998x *isl7998x)
+{
+ struct v4l2_subdev *sd = &isl7998x->subdev;
+ int link_freq_index;
+ unsigned int i;
+ int ret;
+
+ ret = v4l2_ctrl_handler_init(&isl7998x->ctrl_handler,
+ 2 + ARRAY_SIZE(isl7998x_ctrls));
+ if (ret)
+ return ret;
+
+ mutex_init(&isl7998x->ctrl_mutex);
+ isl7998x->ctrl_handler.lock = &isl7998x->ctrl_mutex;
+ link_freq_index = get_link_freq_menu_index(isl7998x->nr_mipi_lanes,
+ isl7998x->nr_inputs);
+ if (link_freq_index < 0 ||
+ link_freq_index >= ARRAY_SIZE(link_freq_menu_items)) {
+ dev_err(sd->dev,
+ "failed to find MIPI link freq: %d lanes, %d inputs\n",
+ isl7998x->nr_mipi_lanes, isl7998x->nr_inputs);
+ ret = -EINVAL;
+ goto err;
+ }
+
+ isl7998x->link_freq = v4l2_ctrl_new_int_menu(&isl7998x->ctrl_handler,
+ &isl7998x_ctrl_ops,
+ V4L2_CID_LINK_FREQ,
+ ARRAY_SIZE(link_freq_menu_items) - 1,
+ link_freq_index,
+ link_freq_menu_items);
+ if (isl7998x->link_freq)
+ isl7998x->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY;
+
+ for (i = 0; i < ARRAY_SIZE(isl7998x_ctrls); i++)
+ v4l2_ctrl_new_custom(&isl7998x->ctrl_handler,
+ &isl7998x_ctrls[i], NULL);
+
+ v4l2_ctrl_new_std_menu_items(&isl7998x->ctrl_handler,
+ &isl7998x_ctrl_ops,
+ V4L2_CID_TEST_PATTERN,
+ ARRAY_SIZE(isl7998x_test_pattern_menu) - 1,
+ 0, 0, isl7998x_test_pattern_menu);
+
+ ret = isl7998x->ctrl_handler.error;
+ if (ret)
+ goto err;
+
+ isl7998x->subdev.ctrl_handler = &isl7998x->ctrl_handler;
+ v4l2_ctrl_handler_setup(&isl7998x->ctrl_handler);
+
+ return 0;
+
+err:
+ isl7998x_remove_controls(isl7998x);
+
+ return ret;
+}
+
+static int isl7998x_probe(struct i2c_client *client)
+{
+ struct device *dev = &client->dev;
+ struct v4l2_fwnode_endpoint endpoint = {
+ .bus_type = V4L2_MBUS_CSI2_DPHY,
+ };
+ struct fwnode_handle *ep;
+ struct isl7998x *isl7998x;
+ struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
+ int nr_inputs;
+ int ret;
+
+ ret = i2c_check_functionality(adapter, I2C_FUNC_SMBUS_WORD_DATA);
+ if (!ret) {
+ dev_warn(&adapter->dev,
+ "I2C-Adapter doesn't support I2C_FUNC_SMBUS_WORD\n");
+ return -EIO;
+ }
+
+ isl7998x = devm_kzalloc(dev, sizeof(*isl7998x), GFP_KERNEL);
+ if (!isl7998x)
+ return -ENOMEM;
+
+ isl7998x->pd_gpio = devm_gpiod_get_optional(dev, "powerdown",
+ GPIOD_OUT_HIGH);
+ if (IS_ERR(isl7998x->pd_gpio))
+ return dev_err_probe(dev, PTR_ERR(isl7998x->pd_gpio),
+ "Failed to retrieve/request PD GPIO\n");
+
+ isl7998x->rstb_gpio = devm_gpiod_get_optional(dev, "reset",
+ GPIOD_OUT_HIGH);
+ if (IS_ERR(isl7998x->rstb_gpio))
+ return dev_err_probe(dev, PTR_ERR(isl7998x->rstb_gpio),
+ "Failed to retrieve/request RSTB GPIO\n");
+
+ isl7998x->regmap = devm_regmap_init_i2c(client, &isl7998x_regmap);
+ if (IS_ERR(isl7998x->regmap))
+ return dev_err_probe(dev, PTR_ERR(isl7998x->regmap),
+ "Failed to allocate register map\n");
+
+ ep = fwnode_graph_get_endpoint_by_id(dev_fwnode(dev),
+ ISL7998X_PAD_OUT, 0, 0);
+ if (!ep)
+ return dev_err_probe(dev, -EINVAL, "Missing endpoint node\n");
+
+ ret = v4l2_fwnode_endpoint_parse(ep, &endpoint);
+ fwnode_handle_put(ep);
+ if (ret)
+ return dev_err_probe(dev, ret, "Failed to parse endpoint\n");
+
+ if (endpoint.bus.mipi_csi2.num_data_lanes == 0 ||
+ endpoint.bus.mipi_csi2.num_data_lanes > 2)
+ return dev_err_probe(dev, -EINVAL,
+ "Invalid number of MIPI lanes\n");
+
+ isl7998x->nr_mipi_lanes = endpoint.bus.mipi_csi2.num_data_lanes;
+
+ nr_inputs = isl7998x_get_nr_inputs(dev->of_node);
+ if (nr_inputs < 0)
+ return dev_err_probe(dev, nr_inputs,
+ "Invalid number of input ports\n");
+ isl7998x->nr_inputs = nr_inputs;
+
+ v4l2_i2c_subdev_init(&isl7998x->subdev, client, &isl7998x_subdev_ops);
+ isl7998x->subdev.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
+
+ ret = isl7998x_mc_init(isl7998x);
+ if (ret < 0)
+ return ret;
+
+ isl7998x->fmt = &isl7998x_colour_fmts[0];
+ isl7998x->norm = V4L2_STD_NTSC;
+ isl7998x->enabled = 0;
+
+ mutex_init(&isl7998x->lock);
+
+ ret = isl7998x_init_controls(isl7998x);
+ if (ret)
+ goto err_entity_cleanup;
+
+ ret = v4l2_async_register_subdev(&isl7998x->subdev);
+ if (ret < 0)
+ goto err_controls_cleanup;
+
+ pm_runtime_enable(dev);
+
+ return 0;
+
+err_controls_cleanup:
+ isl7998x_remove_controls(isl7998x);
+err_entity_cleanup:
+ media_entity_cleanup(&isl7998x->subdev.entity);
+
+ return ret;
+}
+
+static int isl7998x_remove(struct i2c_client *client)
+{
+ struct isl7998x *isl7998x = i2c_to_isl7998x(client);
+
+ pm_runtime_disable(&client->dev);
+ v4l2_async_unregister_subdev(&isl7998x->subdev);
+ isl7998x_remove_controls(isl7998x);
+ media_entity_cleanup(&isl7998x->subdev.entity);
+
+ return 0;
+}
+
+static const struct of_device_id isl7998x_of_match[] = {
+ { .compatible = "isil,isl79987", },
+ { /* sentinel */ },
+};
+MODULE_DEVICE_TABLE(of, isl7998x_of_match);
+
+static const struct i2c_device_id isl7998x_id[] = {
+ { "isl79987", 0 },
+ { /* sentinel */ },
+};
+MODULE_DEVICE_TABLE(i2c, isl7998x_id);
+
+static int __maybe_unused isl7998x_runtime_resume(struct device *dev)
+{
+ struct v4l2_subdev *sd = dev_get_drvdata(dev);
+ struct isl7998x *isl7998x = sd_to_isl7998x(sd);
+ int ret;
+
+ gpiod_set_value(isl7998x->rstb_gpio, 1);
+ gpiod_set_value(isl7998x->pd_gpio, 0);
+ gpiod_set_value(isl7998x->rstb_gpio, 0);
+
+ ret = isl7998x_wait_power_on(isl7998x);
+ if (ret)
+ goto err;
+
+ ret = isl7998x_init(isl7998x);
+ if (ret)
+ goto err;
+
+ return 0;
+
+err:
+ gpiod_set_value(isl7998x->pd_gpio, 1);
+
+ return ret;
+}
+
+static int __maybe_unused isl7998x_runtime_suspend(struct device *dev)
+{
+ struct v4l2_subdev *sd = dev_get_drvdata(dev);
+ struct isl7998x *isl7998x = sd_to_isl7998x(sd);
+
+ gpiod_set_value(isl7998x->pd_gpio, 1);
+
+ return 0;
+}
+
+static const struct dev_pm_ops isl7998x_pm_ops = {
+ SET_RUNTIME_PM_OPS(isl7998x_runtime_suspend,
+ isl7998x_runtime_resume,
+ NULL)
+};
+
+static struct i2c_driver isl7998x_i2c_driver = {
+ .driver = {
+ .name = "isl7998x",
+ .of_match_table = of_match_ptr(isl7998x_of_match),
+ .pm = &isl7998x_pm_ops,
+ },
+ .probe_new = isl7998x_probe,
+ .remove = isl7998x_remove,
+ .id_table = isl7998x_id,
+};
+
+module_i2c_driver(isl7998x_i2c_driver);
+
+MODULE_DESCRIPTION("Intersil ISL7998x Analog to MIPI CSI-2/BT656 decoder");
+MODULE_AUTHOR("Marek Vasut <marex@denx.de>");
+MODULE_LICENSE("GPL v2");
projects / platform / kernel / linux-rpi.git / commitdiff