Hi Michael,
Thanks for the patch.
On Thu, Jun 17, 2021 at 11:25:38AM +0200, Michael Tretter wrote:
> From: Marek Vasut <marex@xxxxxxx>
>
> Add driver for the Intersil ISL7998x Analog to MIPI CSI-2/BT656 decoder.
> This chip supports 1/2/4 analog video inputs and converts them into
> 1/2/4 VCs in MIPI CSI2 stream.
>
> This driver currently supports ISL79987 and both 720x480 and 720x576
> resolutions, however as per specification, all inputs must use the
> same resolution and standard. The only supported pixel format is now
> YUYV/YUV422. The chip should support RGB565 on the CSI2 as well, but
> this is currently unsupported.
>
> Signed-off-by: Marek Vasut <marex@xxxxxxx>
> Cc: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>
> Cc: Mauro Carvalho Chehab <mchehab+samsung@xxxxxxxxxx>
> Cc: Rob Herring <robh+dt@xxxxxxxxxx>
> To: linux-media@xxxxxxxxxxxxxxx
> Signed-off-by: Michael Tretter <m.tretter@xxxxxxxxxxxxxx>
> ---
> Changelog:
>
> v3:
>
> - follow dt binding change: pd-gpios -> powerdown-gpios
>
> v2:
>
> - general cleanup
> - remove isl7998x_g_mbus_config function
> - implement enum_frame_size function
> - replace msleep with usleep_range
> - rework set_fmt/get_fmt functions
> - calculate number of inputs using number of input ports
> - switch to runtime_pm
> - add reset gpio
> - add adv_debug support
> - add MAINTAINERS entry
>
> fixup! media: i2c: isl7998x: Add driver for Intersil ISL7998x
> ---
> MAINTAINERS | 8 +
> drivers/media/i2c/Kconfig | 9 +
> drivers/media/i2c/Makefile | 1 +
> drivers/media/i2c/isl7998x.c | 1421 ++++++++++++++++++++++++++++++++++
> 4 files changed, 1439 insertions(+)
> create mode 100644 drivers/media/i2c/isl7998x.c
>
> diff --git a/MAINTAINERS b/MAINTAINERS
> index f086d2c305b5..c1283e4589fc 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -9501,6 +9501,14 @@ L: linux-iio@xxxxxxxxxxxxxxx
> F: Documentation/devicetree/bindings/counter/interrupt-counter.yaml
> F: drivers/counter/interrupt-cnt.c
>
> +INTERSIL ISL7998X VIDEO DECODER DRIVER
> +M: Michael Tretter <m.tretter@xxxxxxxxxxxxxx>
> +R: Pengutronix Kernel Team <kernel@xxxxxxxxxxxxxx>
> +L: linux-media@xxxxxxxxxxxxxxx
> +S: Maintained
> +F: Documentation/devicetree/bindings/media/i2c/isil,isl79987.yaml
> +F: drivers/media/i2c/isl7998x.c
> +
> INVENSENSE ICM-426xx IMU DRIVER
> M: Jean-Baptiste Maneyrol <jmaneyrol@xxxxxxxxxxxxxx>
> L: linux-iio@xxxxxxxxxxxxxxx
> diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig
> index 588f8eb95984..f743d7ba9f64 100644
> --- a/drivers/media/i2c/Kconfig
> +++ b/drivers/media/i2c/Kconfig
> @@ -325,6 +325,15 @@ config VIDEO_BT866
> To compile this driver as a module, choose M here: the
> module will be called bt866.
>
> +config VIDEO_ISL7998X
> + tristate "Intersil ISL7998x video decoder"
> + depends on VIDEO_V4L2 && I2C
> + depends on OF_GPIO
> + select VIDEO_V4L2_SUBDEV_API
> + help
> + Support for Intersil ISL7998x analog to MIPI-CSI2 or
> + BT.656 decoder.
> +
> config VIDEO_KS0127
> tristate "KS0127 video decoder"
> depends on VIDEO_V4L2 && I2C
> diff --git a/drivers/media/i2c/Makefile b/drivers/media/i2c/Makefile
> index 1168fa6b84ed..be859fe5f739 100644
> --- a/drivers/media/i2c/Makefile
> +++ b/drivers/media/i2c/Makefile
> @@ -125,6 +125,7 @@ obj-$(CONFIG_VIDEO_IMX290) += imx290.o
> obj-$(CONFIG_VIDEO_IMX319) += imx319.o
> obj-$(CONFIG_VIDEO_IMX334) += imx334.o
> obj-$(CONFIG_VIDEO_IMX355) += imx355.o
> +obj-$(CONFIG_VIDEO_ISL7998X) += isl7998x.o
> obj-$(CONFIG_VIDEO_MAX9286) += max9286.o
> obj-$(CONFIG_VIDEO_MAX9271_LIB) += max9271.o
> obj-$(CONFIG_VIDEO_RDACM20) += rdacm20.o
> diff --git a/drivers/media/i2c/isl7998x.c b/drivers/media/i2c/isl7998x.c
> new file mode 100644
> index 000000000000..529fb228663d
> --- /dev/null
> +++ b/drivers/media/i2c/isl7998x.c
> @@ -0,0 +1,1421 @@
> +// 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@xxxxxxx>
> + * Copyright (C) 2021 Michael Tretter <kernel@xxxxxxxxxxxxxx>
> + */
> +
> +#include <linux/bitfield.h>
> +#include <linux/delay.h>
> +#include <linux/gpio.h>
> +#include <linux/i2c.h>
> +#include <linux/log2.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>
> +
> +#define V4L2_CID_TEST_PATTERN_COLOR (V4L2_CID_USER_BASE | 0x1001)
> +#define V4L2_CID_TEST_PATTERN_CHANNELS (V4L2_CID_USER_BASE | 0x1002)
> +#define V4L2_CID_TEST_PATTERN_BARS (V4L2_CID_USER_BASE | 0x1003)
> +
> +#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_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_NOW GENMASK(6, 4)
> +#define ISL7998x_REG_Px_DEC_SDT_DET BIT(7)
> +#define ISL7998x_REG_Px_DEC_SDTR(pg) ISL7998x_REG((pg), 0x1d)
> +#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), 0x07 },
> + { ISL7998x_REG_Px_DEC_SHORT_DET_CTL_1(0x1), 0x03 },
> + { ISL7998x_REG_Px_DEC_SDT(0x2), 0x07 },
> + { ISL7998x_REG_Px_DEC_SHORT_DET_CTL_1(0x2), 0x03 },
> + { ISL7998x_REG_Px_DEC_SDT(0x3), 0x07 },
> + { ISL7998x_REG_Px_DEC_SHORT_DET_CTL_1(0x3), 0x03 },
> + { ISL7998x_REG_Px_DEC_SDT(0x4), 0x07 },
> + { 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_YUYV8_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,
This should come from DT, or at least you should check the information in
DT matches with what the driver can do.
> +};
> +
> +/* Menu items for TEST_PATTERN V4L2 control */
> +static const char * const isl7998x_test_pattern_menu[] = {
> + "Disabled",
> + "PAL (720x576)",
> + "NTSC (720x480)",
> +};
> +
> +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;
> +};
> +
> +static const struct isl7998x_mode supported_modes[] = {
> + {
> + .width = 720,
> + .height = 576,
> + },
> + {
> + .width = 720,
> + .height = 480,
> + },
> +};
> +
> +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_mode *mode;
> + const struct isl7998x_datafmt *fmt;
> +#ifdef CONFIG_MEDIA_CONTROLLER
> + struct media_pad pads[ISL7998x_NUM_PADS];
> +#endif
> +
> + 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 const struct isl7998x_mode *isl7998x_get_mode(struct isl7998x *isl7998x)
> +{
> + switch (isl7998x->test_pattern) {
> + case 1:
> + return &supported_modes[0];
> + case 2:
> + return &supported_modes[1];
> + default:
> + return isl7998x->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) > 5)
> + 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 = 0; i < 4; i++) {
It'd be nicer to have a human-readable name instead of plain 4.
> + port = of_graph_get_port_by_id(of_node, i + 1);
> + if (!port)
> + continue;
> +
> + inputs |= BIT(i);
> + of_node_put(port);
> + }
> +
> + switch (inputs) {
> + case 0x1:
> + return 1;
> + case 0x3:
> + return 2;
> + case 0xf:
> + return 4;
> + default:
> + return -EINVAL;
> + }
> +}
> +
> +static int isl7998x_wait_power_on(struct isl7998x *isl7998x)
> +{
> + struct device *dev = isl7998x->subdev.dev;
> + unsigned int retry;
> + u32 chip_id;
> + int ret = -ETIMEDOUT;
> +
> + for (retry = 10; ret && retry > 0; retry--) {
> + ret = regmap_read(isl7998x->regmap,
> + ISL7998x_REG_P0_PRODUCT_ID_CODE, &chip_id);
> + usleep_range(1000, 2000);
> + }
> + if (ret)
> + return -ETIMEDOUT;
> +
> + dev_dbg(dev, "Found ISL799%x\n", chip_id);
> +
> + 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 },
> + { ISL7998x_REG_P5_LI_ENGINE_LINE_CTL,
> + 0x20 | ((isl7998x->mode->width >> 7) & 0x1f) },
> + { ISL7998x_REG_P5_LI_ENGINE_PIC_WIDTH,
> + (isl7998x->mode->width << 1) & 0xff },
> + };
> + struct device *dev = isl7998x->subdev.dev;
> + struct regmap *regmap = isl7998x->regmap;
> + int ret;
> +
> + dev_dbg(dev, "configuring %d lanes for %d inputs (%dx%d)\n",
> + isl7998x->nr_mipi_lanes, isl7998x->nr_inputs,
> + isl7998x->mode->width, isl7998x->mode->height);
> +
> + ret = regmap_register_patch(regmap, isl7998x_init_seq_1,
> + ARRAY_SIZE(isl7998x_init_seq_1));
> + 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 const struct isl7998x_video_std {
> + int id;
> + const char *name;
> + const struct isl7998x_mode *mode;
> +} isl7998x_std_res[] = {
> + { 0, "NTSC (M)", &supported_modes[1]},
> + { 1, "PAL (B, D, G, H, I)", &supported_modes[0]},
> + { 2, "SECAM", &supported_modes[0]},
> + { 3, "NTSC4.43", &supported_modes[1]},
> + { 4, "PAL (M)", &supported_modes[1]},
> + { 5, "PAL (CN)", &supported_modes[0]},
> + { 6, "PAL 60", &supported_modes[1]},
> + { 7, "N/A", NULL},
> +};
> +
> +/*
> + * Detect and set video standard on video inputs.
> + */
> +static int isl7998x_update_std(struct isl7998x *isl7998x)
> +{
> +#define ISL7998x_INPUTS 4
> + struct device *dev = isl7998x->subdev.dev;
> + unsigned int std_id[ISL7998x_INPUTS];
> + u8 scanning = GENMASK(ISL7998x_INPUTS - 1, 0);
> + unsigned int i;
> + int ret;
> + u32 reg;
> +
> + ret = pm_runtime_resume_and_get(dev);
> + if (ret)
> + return ret;
> +
> + while (true) {
> + for (i = 0; i < ISL7998x_INPUTS; i++) {
> + ret = regmap_read(isl7998x->regmap,
> + ISL7998x_REG_Px_DEC_SDT(i + 1), ®);
> + if (ret)
> + goto out;
> +
> + /* Detection is still in progress, restart. */
> + if (reg & ISL7998x_REG_Px_DEC_SDT_DET) {
> + scanning = GENMASK(ISL7998x_INPUTS - 1, 0);
> + break;
> + }
> +
> + scanning &= ~BIT(i);
> + std_id[i] = FIELD_GET(ISL7998x_REG_Px_DEC_SDT_NOW, reg);
> + }
> +
> + if (!scanning)
> + break;
> +
> + /*
> + * Duration of standard detection is not documented. Wait for
> + * an arbitrary time before checking again.
> + */
> + usleep_range(1000, 2000);
> + }
> +
> + /*
> + * 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(isl7998x->subdev.dev, "input %d: detected %s\n",
> + i, isl7998x_std_res[std_id[i]].name);
> + if (std_id[0] != std_id[i])
> + dev_warn(isl7998x->subdev.dev,
> + "incompatible standards: %s on input %d (expected %s)\n",
> + isl7998x_std_res[std_id[i]].name, i,
> + isl7998x_std_res[std_id[0]].name);
> + }
> +
> + isl7998x->mode = isl7998x_std_res[std_id[0]].mode;
> +
> +out:
> + pm_runtime_put(dev);
> +
> + return ret;
> +}
> +
> +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->test_pattern == 1 ? 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))
> + return 0;
> +
> + if (isl7998x->test_pattern != 0) {
> + dev_dbg(dev, "test pattern: %s, channels 0x%x, %s, %s\n",
> + isl7998x_test_pattern_menu[isl7998x->test_pattern],
> + 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;
> +}
> +
> +static int isl7998x_power_on(struct isl7998x *isl7998x)
> +{
> + int ret;
> +
> + if (isl7998x->rstb_gpio)
> + gpiod_set_value(isl7998x->rstb_gpio, 1);
> + if (isl7998x->pd_gpio)
> + gpiod_set_value(isl7998x->pd_gpio, 0);
> + if (isl7998x->rstb_gpio)
> + gpiod_set_value(isl7998x->rstb_gpio, 0);
The gpiod API checks for NULL, no need to do that here.
> +
> + ret = isl7998x_wait_power_on(isl7998x);
> + if (ret)
> + goto err;
> +
> + return isl7998x_init(isl7998x);
> +
> +err:
> + if (isl7998x->pd_gpio)
> + gpiod_set_value(isl7998x->pd_gpio, 1);
> +
> + return ret;
> +}
> +
> +static int isl7998x_power_off(struct isl7998x *isl7998x)
> +{
> + if (isl7998x->pd_gpio)
> + gpiod_set_value(isl7998x->pd_gpio, 1);
> +
> + return 0;
> +}
> +
> +static int isl7998x_s_power(struct v4l2_subdev *sd, int on)
> +{
> + struct i2c_client *client = v4l2_get_subdevdata(sd);
> + struct device *dev = &client->dev;
> + int ret = 0;
> +
> + dev_dbg(dev, "power %s\n", on ? "ON" : "OFF");
> +
> + if (on) {
> + ret = pm_runtime_resume_and_get(dev);
> + if (ret < 0)
> + return ret;
> + } else {
> + 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_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");
> +
I think you need to resume the device here when streaming is started, and
stop it when it's stopped (at the end).
> + if (enable) {
> + ret = isl7998x_set_test_pattern(isl7998x);
> + if (ret)
> + return ret;
> + }
> +
> + 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);
> +
> + return ret;
> +}
> +
> +static int isl7998x_enum_mbus_code(struct v4l2_subdev *sd,
> + struct v4l2_subdev_pad_config *cfg,
> + 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_pad_config *cfg,
> + 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_pad_config *cfg,
> + struct v4l2_subdev_format *format)
> +{
> + struct isl7998x *isl7998x = sd_to_isl7998x(sd);
> + struct v4l2_mbus_framefmt *mf = &format->format;
> + const struct isl7998x_mode *mode = isl7998x_get_mode(isl7998x);
> +
> + if (format->which == V4L2_SUBDEV_FORMAT_TRY) {
> + format->format = *v4l2_subdev_get_try_format(sd, cfg, format->pad);
There seem to be a number of lines over 80 that also seem be better wrapped
on the next one. Could you do that?
> + return 0;
> + }
> +
> + mf->width = mode->width;
> + mf->height = mode->height;
> + mf->code = isl7998x->fmt->code;
> + mf->field = V4L2_FIELD_INTERLACED;
> + mf->colorspace = 0;
> +
> + return 0;
> +}
> +
> +static int isl7998x_set_fmt(struct v4l2_subdev *sd,
> + struct v4l2_subdev_pad_config *cfg,
> + struct v4l2_subdev_format *format)
> +{
> + struct isl7998x *isl7998x = sd_to_isl7998x(sd);
> + struct v4l2_mbus_framefmt *mf = &format->format;
> + const struct isl7998x_mode *mode = isl7998x_get_mode(isl7998x);
> +
> + mf->width = mode->width;
> + mf->height = mode->height;
> + mf->code = isl7998x->fmt->code;
> + mf->field = V4L2_FIELD_INTERLACED;
> +
> + if (format->which == V4L2_SUBDEV_FORMAT_TRY)
> + *v4l2_subdev_get_try_format(sd, cfg, format->pad) = format->format;
> +
> + return 0;
> +}
> +
> +static int isl7998x_set_ctrl(struct v4l2_ctrl *ctrl)
> +{
> + struct isl7998x *isl7998x = container_of(ctrl->handler,
> + struct isl7998x, ctrl_handler);
> +
> + switch (ctrl->id) {
> + case V4L2_CID_TEST_PATTERN_BARS:
> + isl7998x->test_pattern_bars = ctrl->val & 0x3;
> + return isl7998x_set_test_pattern(isl7998x);
> + case V4L2_CID_TEST_PATTERN_CHANNELS:
> + isl7998x->test_pattern_chans = ctrl->val & 0xf;
> + return isl7998x_set_test_pattern(isl7998x);
> + case V4L2_CID_TEST_PATTERN_COLOR:
> + isl7998x->test_pattern_color = ctrl->val & 0x3;
> + return isl7998x_set_test_pattern(isl7998x);
> + case V4L2_CID_TEST_PATTERN:
> + isl7998x->test_pattern = ctrl->val;
> + return isl7998x_set_test_pattern(isl7998x);
> + }
> +
> + return 0;
> +}
> +
> +static const struct v4l2_subdev_core_ops isl7998x_subdev_core_ops = {
> + .s_power = isl7998x_s_power,
The driver appears to be using runtime PM already; please drop the s_power
callback.
> +#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 = {
> + .s_stream = isl7998x_s_stream,
> +};
> +
> +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 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);
> + isl7998x->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY;
Note that isl7998x->link_freq may be NULL here.
> +
> + 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;
> +
> + return 0;
> +
> +err:
> + mutex_destroy(&isl7998x->ctrl_mutex);
> +
> + return ret;
> +}
> +
> +static void isl7998x_remove_controls(struct isl7998x *isl7998x)
> +{
> + v4l2_ctrl_handler_free(isl7998x->subdev.ctrl_handler);
> + mutex_destroy(&isl7998x->ctrl_mutex);
> +}
> +
> +static int isl7998x_probe(struct i2c_client *client)
> +{
> + struct device *dev = &client->dev;
> + struct v4l2_fwnode_endpoint endpoint = {
> + .bus_type = V4L2_MBUS_UNKNOWN
Please assign bus_type to V4L2_MBUS_CSI2_DPHY here.
Then you can also remove the check for the typ a few tens of lines below.
> + };
> + struct device_node *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 = of_graph_get_endpoint_by_regs(dev->of_node, 0, 0);
> + if (!ep)
> + return dev_err_probe(dev, -EINVAL, "Missing endpoint node\n");
> +
> + ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(ep), &endpoint);
> + of_node_put(ep);
> + if (ret)
> + return dev_err_probe(dev, ret, "Failed to parse endpoint\n");
> +
> + if (endpoint.bus_type != V4L2_MBUS_CSI2_DPHY ||
> + endpoint.bus.mipi_csi2.num_data_lanes == 0 ||
> + endpoint.bus.mipi_csi2.num_data_lanes > 2)
> + return dev_err_probe(dev, -EINVAL,
> + "Invalid bus type or 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->mode = &supported_modes[0];
> + isl7998x->fmt = &isl7998x_colour_fmts[0];
> +
> + 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);
> +
> + ret = isl7998x_update_std(isl7998x);
> + if (ret)
> + goto err_init_cleanup;
> +
> + return 0;
> +
> +err_init_cleanup:
> + pm_runtime_disable(dev);
> + v4l2_async_unregister_subdev(&isl7998x->subdev);
> +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);
> +
> + return isl7998x_power_on(isl7998x);
> +}
> +
> +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);
> +
> + isl7998x_power_off(isl7998x);
Please merge the two functions; same for runtime_resume callback above.
> +
> + 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@xxxxxxx>");
> +MODULE_LICENSE("GPL v2");
--
Kind regards,
Sakari Ailus
