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-rw-r--r--target/linux/bcm27xx/patches-5.4/950-0816-media-i2c-Add-IMX290-CMOS-image-sensor-driver.patch939
1 files changed, 939 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.4/950-0816-media-i2c-Add-IMX290-CMOS-image-sensor-driver.patch b/target/linux/bcm27xx/patches-5.4/950-0816-media-i2c-Add-IMX290-CMOS-image-sensor-driver.patch
new file mode 100644
index 0000000000..a44aa767bd
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.4/950-0816-media-i2c-Add-IMX290-CMOS-image-sensor-driver.patch
@@ -0,0 +1,939 @@
+From d13c94482be9ca356df8a04f8fd5f3738dc31ab1 Mon Sep 17 00:00:00 2001
+From: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
+Date: Fri, 4 Oct 2019 13:05:25 -0300
+Subject: [PATCH] media: i2c: Add IMX290 CMOS image sensor driver
+
+Commit 828dbc299278065b634e913d2700d254a3224853 upstream.
+
+Add driver for Sony IMX290 CMOS image sensor driver. The driver only
+supports I2C interface for programming and MIPI CSI-2 for sensor output.
+
+[Sakari Ailus: Rewrapped a few lines over 80 chars a little.]
+
+Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
+Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
+Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
+---
+ drivers/media/i2c/Kconfig | 11 +
+ drivers/media/i2c/Makefile | 1 +
+ drivers/media/i2c/imx290.c | 884 +++++++++++++++++++++++++++++++++++++
+ 3 files changed, 896 insertions(+)
+ create mode 100644 drivers/media/i2c/imx290.c
+
+--- a/drivers/media/i2c/Kconfig
++++ b/drivers/media/i2c/Kconfig
+@@ -609,6 +609,17 @@ config VIDEO_IMX274
+ This is a V4L2 sensor driver for the Sony IMX274
+ CMOS image sensor.
+
++config VIDEO_IMX290
++ tristate "Sony IMX290 sensor support"
++ depends on I2C && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API
++ select V4L2_FWNODE
++ help
++ This is a Video4Linux2 sensor driver for the Sony
++ IMX290 camera sensor.
++
++ To compile this driver as a module, choose M here: the
++ module will be called imx290.
++
+ config VIDEO_IMX477
+ tristate "Sony IMX477 sensor support"
+ depends on I2C && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API
+--- a/drivers/media/i2c/Makefile
++++ b/drivers/media/i2c/Makefile
+@@ -114,6 +114,7 @@ obj-$(CONFIG_VIDEO_IMX214) += imx214.o
+ obj-$(CONFIG_VIDEO_IMX219) += imx219.o
+ obj-$(CONFIG_VIDEO_IMX258) += imx258.o
+ obj-$(CONFIG_VIDEO_IMX274) += imx274.o
++obj-$(CONFIG_VIDEO_IMX290) += imx290.o
+ obj-$(CONFIG_VIDEO_IMX477) += imx477.o
+ obj-$(CONFIG_VIDEO_IMX319) += imx319.o
+ obj-$(CONFIG_VIDEO_IMX355) += imx355.o
+--- /dev/null
++++ b/drivers/media/i2c/imx290.c
+@@ -0,0 +1,884 @@
++// SPDX-License-Identifier: GPL-2.0
++/*
++ * Sony IMX290 CMOS Image Sensor Driver
++ *
++ * Copyright (C) 2019 FRAMOS GmbH.
++ *
++ * Copyright (C) 2019 Linaro Ltd.
++ * Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
++ */
++
++#include <linux/clk.h>
++#include <linux/delay.h>
++#include <linux/gpio/consumer.h>
++#include <linux/i2c.h>
++#include <linux/module.h>
++#include <linux/pm_runtime.h>
++#include <linux/regmap.h>
++#include <linux/regulator/consumer.h>
++#include <media/media-entity.h>
++#include <media/v4l2-ctrls.h>
++#include <media/v4l2-device.h>
++#include <media/v4l2-fwnode.h>
++#include <media/v4l2-subdev.h>
++
++#define IMX290_STANDBY 0x3000
++#define IMX290_REGHOLD 0x3001
++#define IMX290_XMSTA 0x3002
++#define IMX290_GAIN 0x3014
++
++#define IMX290_DEFAULT_LINK_FREQ 445500000
++
++static const char * const imx290_supply_name[] = {
++ "vdda",
++ "vddd",
++ "vdddo",
++};
++
++#define IMX290_NUM_SUPPLIES ARRAY_SIZE(imx290_supply_name)
++
++struct imx290_regval {
++ u16 reg;
++ u8 val;
++};
++
++struct imx290_mode {
++ u32 width;
++ u32 height;
++ u32 pixel_rate;
++ u32 link_freq_index;
++
++ const struct imx290_regval *data;
++ u32 data_size;
++};
++
++struct imx290 {
++ struct device *dev;
++ struct clk *xclk;
++ struct regmap *regmap;
++
++ struct v4l2_subdev sd;
++ struct v4l2_fwnode_endpoint ep;
++ struct media_pad pad;
++ struct v4l2_mbus_framefmt current_format;
++ const struct imx290_mode *current_mode;
++
++ struct regulator_bulk_data supplies[IMX290_NUM_SUPPLIES];
++ struct gpio_desc *rst_gpio;
++
++ struct v4l2_ctrl_handler ctrls;
++ struct v4l2_ctrl *link_freq;
++ struct v4l2_ctrl *pixel_rate;
++
++ struct mutex lock;
++};
++
++struct imx290_pixfmt {
++ u32 code;
++};
++
++static const struct imx290_pixfmt imx290_formats[] = {
++ { MEDIA_BUS_FMT_SRGGB10_1X10 },
++};
++
++static const struct regmap_config imx290_regmap_config = {
++ .reg_bits = 16,
++ .val_bits = 8,
++ .cache_type = REGCACHE_RBTREE,
++};
++
++static const struct imx290_regval imx290_global_init_settings[] = {
++ { 0x3007, 0x00 },
++ { 0x3009, 0x00 },
++ { 0x3018, 0x65 },
++ { 0x3019, 0x04 },
++ { 0x301a, 0x00 },
++ { 0x3443, 0x03 },
++ { 0x3444, 0x20 },
++ { 0x3445, 0x25 },
++ { 0x3407, 0x03 },
++ { 0x303a, 0x0c },
++ { 0x3040, 0x00 },
++ { 0x3041, 0x00 },
++ { 0x303c, 0x00 },
++ { 0x303d, 0x00 },
++ { 0x3042, 0x9c },
++ { 0x3043, 0x07 },
++ { 0x303e, 0x49 },
++ { 0x303f, 0x04 },
++ { 0x304b, 0x0a },
++ { 0x300f, 0x00 },
++ { 0x3010, 0x21 },
++ { 0x3012, 0x64 },
++ { 0x3016, 0x09 },
++ { 0x3070, 0x02 },
++ { 0x3071, 0x11 },
++ { 0x309b, 0x10 },
++ { 0x309c, 0x22 },
++ { 0x30a2, 0x02 },
++ { 0x30a6, 0x20 },
++ { 0x30a8, 0x20 },
++ { 0x30aa, 0x20 },
++ { 0x30ac, 0x20 },
++ { 0x30b0, 0x43 },
++ { 0x3119, 0x9e },
++ { 0x311c, 0x1e },
++ { 0x311e, 0x08 },
++ { 0x3128, 0x05 },
++ { 0x313d, 0x83 },
++ { 0x3150, 0x03 },
++ { 0x317e, 0x00 },
++ { 0x32b8, 0x50 },
++ { 0x32b9, 0x10 },
++ { 0x32ba, 0x00 },
++ { 0x32bb, 0x04 },
++ { 0x32c8, 0x50 },
++ { 0x32c9, 0x10 },
++ { 0x32ca, 0x00 },
++ { 0x32cb, 0x04 },
++ { 0x332c, 0xd3 },
++ { 0x332d, 0x10 },
++ { 0x332e, 0x0d },
++ { 0x3358, 0x06 },
++ { 0x3359, 0xe1 },
++ { 0x335a, 0x11 },
++ { 0x3360, 0x1e },
++ { 0x3361, 0x61 },
++ { 0x3362, 0x10 },
++ { 0x33b0, 0x50 },
++ { 0x33b2, 0x1a },
++ { 0x33b3, 0x04 },
++};
++
++static const struct imx290_regval imx290_1080p_settings[] = {
++ /* mode settings */
++ { 0x3007, 0x00 },
++ { 0x303a, 0x0c },
++ { 0x3414, 0x0a },
++ { 0x3472, 0x80 },
++ { 0x3473, 0x07 },
++ { 0x3418, 0x38 },
++ { 0x3419, 0x04 },
++ { 0x3012, 0x64 },
++ { 0x3013, 0x00 },
++ { 0x305c, 0x18 },
++ { 0x305d, 0x03 },
++ { 0x305e, 0x20 },
++ { 0x305f, 0x01 },
++ { 0x315e, 0x1a },
++ { 0x3164, 0x1a },
++ { 0x3480, 0x49 },
++ /* data rate settings */
++ { 0x3009, 0x01 },
++ { 0x3405, 0x10 },
++ { 0x3446, 0x57 },
++ { 0x3447, 0x00 },
++ { 0x3448, 0x37 },
++ { 0x3449, 0x00 },
++ { 0x344a, 0x1f },
++ { 0x344b, 0x00 },
++ { 0x344c, 0x1f },
++ { 0x344d, 0x00 },
++ { 0x344e, 0x1f },
++ { 0x344f, 0x00 },
++ { 0x3450, 0x77 },
++ { 0x3451, 0x00 },
++ { 0x3452, 0x1f },
++ { 0x3453, 0x00 },
++ { 0x3454, 0x17 },
++ { 0x3455, 0x00 },
++ { 0x301c, 0x98 },
++ { 0x301d, 0x08 },
++};
++
++static const struct imx290_regval imx290_720p_settings[] = {
++ /* mode settings */
++ { 0x3007, 0x10 },
++ { 0x303a, 0x06 },
++ { 0x3414, 0x04 },
++ { 0x3472, 0x00 },
++ { 0x3473, 0x05 },
++ { 0x3418, 0xd0 },
++ { 0x3419, 0x02 },
++ { 0x3012, 0x64 },
++ { 0x3013, 0x00 },
++ { 0x305c, 0x20 },
++ { 0x305d, 0x00 },
++ { 0x305e, 0x20 },
++ { 0x305f, 0x01 },
++ { 0x315e, 0x1a },
++ { 0x3164, 0x1a },
++ { 0x3480, 0x49 },
++ /* data rate settings */
++ { 0x3009, 0x01 },
++ { 0x3405, 0x10 },
++ { 0x3446, 0x4f },
++ { 0x3447, 0x00 },
++ { 0x3448, 0x2f },
++ { 0x3449, 0x00 },
++ { 0x344a, 0x17 },
++ { 0x344b, 0x00 },
++ { 0x344c, 0x17 },
++ { 0x344d, 0x00 },
++ { 0x344e, 0x17 },
++ { 0x344f, 0x00 },
++ { 0x3450, 0x57 },
++ { 0x3451, 0x00 },
++ { 0x3452, 0x17 },
++ { 0x3453, 0x00 },
++ { 0x3454, 0x17 },
++ { 0x3455, 0x00 },
++ { 0x301c, 0xe4 },
++ { 0x301d, 0x0c },
++};
++
++static const struct imx290_regval imx290_10bit_settings[] = {
++ { 0x3005, 0x00},
++ { 0x3046, 0x00},
++ { 0x3129, 0x1d},
++ { 0x317c, 0x12},
++ { 0x31ec, 0x37},
++ { 0x3441, 0x0a},
++ { 0x3442, 0x0a},
++ { 0x300a, 0x3c},
++ { 0x300b, 0x00},
++};
++
++/* supported link frequencies */
++static const s64 imx290_link_freq[] = {
++ IMX290_DEFAULT_LINK_FREQ,
++};
++
++/* Mode configs */
++static const struct imx290_mode imx290_modes[] = {
++ {
++ .width = 1920,
++ .height = 1080,
++ .data = imx290_1080p_settings,
++ .data_size = ARRAY_SIZE(imx290_1080p_settings),
++ .pixel_rate = 178200000,
++ .link_freq_index = 0,
++ },
++ {
++ .width = 1280,
++ .height = 720,
++ .data = imx290_720p_settings,
++ .data_size = ARRAY_SIZE(imx290_720p_settings),
++ .pixel_rate = 178200000,
++ .link_freq_index = 0,
++ },
++};
++
++static inline struct imx290 *to_imx290(struct v4l2_subdev *_sd)
++{
++ return container_of(_sd, struct imx290, sd);
++}
++
++static inline int imx290_read_reg(struct imx290 *imx290, u16 addr, u8 *value)
++{
++ unsigned int regval;
++ int ret;
++
++ ret = regmap_read(imx290->regmap, addr, &regval);
++ if (ret) {
++ dev_err(imx290->dev, "I2C read failed for addr: %x\n", addr);
++ return ret;
++ }
++
++ *value = regval & 0xff;
++
++ return 0;
++}
++
++static int imx290_write_reg(struct imx290 *imx290, u16 addr, u8 value)
++{
++ int ret;
++
++ ret = regmap_write(imx290->regmap, addr, value);
++ if (ret) {
++ dev_err(imx290->dev, "I2C write failed for addr: %x\n", addr);
++ return ret;
++ }
++
++ return ret;
++}
++
++static int imx290_set_register_array(struct imx290 *imx290,
++ const struct imx290_regval *settings,
++ unsigned int num_settings)
++{
++ unsigned int i;
++ int ret;
++
++ for (i = 0; i < num_settings; ++i, ++settings) {
++ ret = imx290_write_reg(imx290, settings->reg, settings->val);
++ if (ret < 0)
++ return ret;
++
++ /* Settle time is 10ms for all registers */
++ msleep(10);
++ }
++
++ return 0;
++}
++
++static int imx290_write_buffered_reg(struct imx290 *imx290, u16 address_low,
++ u8 nr_regs, u32 value)
++{
++ unsigned int i;
++ int ret;
++
++ ret = imx290_write_reg(imx290, IMX290_REGHOLD, 0x01);
++ if (ret) {
++ dev_err(imx290->dev, "Error setting hold register\n");
++ return ret;
++ }
++
++ for (i = 0; i < nr_regs; i++) {
++ ret = imx290_write_reg(imx290, address_low + i,
++ (u8)(value >> (i * 8)));
++ if (ret) {
++ dev_err(imx290->dev, "Error writing buffered registers\n");
++ return ret;
++ }
++ }
++
++ ret = imx290_write_reg(imx290, IMX290_REGHOLD, 0x00);
++ if (ret) {
++ dev_err(imx290->dev, "Error setting hold register\n");
++ return ret;
++ }
++
++ return ret;
++}
++
++static int imx290_set_gain(struct imx290 *imx290, u32 value)
++{
++ int ret;
++
++ ret = imx290_write_buffered_reg(imx290, IMX290_GAIN, 1, value);
++ if (ret)
++ dev_err(imx290->dev, "Unable to write gain\n");
++
++ return ret;
++}
++
++/* Stop streaming */
++static int imx290_stop_streaming(struct imx290 *imx290)
++{
++ int ret;
++
++ ret = imx290_write_reg(imx290, IMX290_STANDBY, 0x01);
++ if (ret < 0)
++ return ret;
++
++ msleep(30);
++
++ return imx290_write_reg(imx290, IMX290_XMSTA, 0x01);
++}
++
++static int imx290_set_ctrl(struct v4l2_ctrl *ctrl)
++{
++ struct imx290 *imx290 = container_of(ctrl->handler,
++ struct imx290, ctrls);
++ int ret = 0;
++
++ /* V4L2 controls values will be applied only when power is already up */
++ if (!pm_runtime_get_if_in_use(imx290->dev))
++ return 0;
++
++ switch (ctrl->id) {
++ case V4L2_CID_GAIN:
++ ret = imx290_set_gain(imx290, ctrl->val);
++ break;
++ default:
++ ret = -EINVAL;
++ break;
++ }
++
++ pm_runtime_put(imx290->dev);
++
++ return ret;
++}
++
++static const struct v4l2_ctrl_ops imx290_ctrl_ops = {
++ .s_ctrl = imx290_set_ctrl,
++};
++
++static int imx290_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(imx290_formats))
++ return -EINVAL;
++
++ code->code = imx290_formats[code->index].code;
++
++ return 0;
++}
++
++static int imx290_get_fmt(struct v4l2_subdev *sd,
++ struct v4l2_subdev_pad_config *cfg,
++ struct v4l2_subdev_format *fmt)
++{
++ struct imx290 *imx290 = to_imx290(sd);
++ struct v4l2_mbus_framefmt *framefmt;
++
++ mutex_lock(&imx290->lock);
++
++ if (fmt->which == V4L2_SUBDEV_FORMAT_TRY)
++ framefmt = v4l2_subdev_get_try_format(&imx290->sd, cfg,
++ fmt->pad);
++ else
++ framefmt = &imx290->current_format;
++
++ fmt->format = *framefmt;
++
++ mutex_unlock(&imx290->lock);
++
++ return 0;
++}
++
++static int imx290_set_fmt(struct v4l2_subdev *sd,
++ struct v4l2_subdev_pad_config *cfg,
++ struct v4l2_subdev_format *fmt)
++{
++ struct imx290 *imx290 = to_imx290(sd);
++ const struct imx290_mode *mode;
++ struct v4l2_mbus_framefmt *format;
++ unsigned int i;
++
++ mutex_lock(&imx290->lock);
++
++ mode = v4l2_find_nearest_size(imx290_modes,
++ ARRAY_SIZE(imx290_modes),
++ width, height,
++ fmt->format.width, fmt->format.height);
++
++ fmt->format.width = mode->width;
++ fmt->format.height = mode->height;
++
++ for (i = 0; i < ARRAY_SIZE(imx290_formats); i++)
++ if (imx290_formats[i].code == fmt->format.code)
++ break;
++
++ if (i >= ARRAY_SIZE(imx290_formats))
++ i = 0;
++
++ fmt->format.code = imx290_formats[i].code;
++ fmt->format.field = V4L2_FIELD_NONE;
++
++ if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
++ format = v4l2_subdev_get_try_format(sd, cfg, fmt->pad);
++ } else {
++ format = &imx290->current_format;
++ __v4l2_ctrl_s_ctrl(imx290->link_freq, mode->link_freq_index);
++ __v4l2_ctrl_s_ctrl_int64(imx290->pixel_rate, mode->pixel_rate);
++
++ imx290->current_mode = mode;
++ }
++
++ *format = fmt->format;
++
++ mutex_unlock(&imx290->lock);
++
++ return 0;
++}
++
++static int imx290_entity_init_cfg(struct v4l2_subdev *subdev,
++ struct v4l2_subdev_pad_config *cfg)
++{
++ struct v4l2_subdev_format fmt = { 0 };
++
++ fmt.which = cfg ? V4L2_SUBDEV_FORMAT_TRY : V4L2_SUBDEV_FORMAT_ACTIVE;
++ fmt.format.width = 1920;
++ fmt.format.height = 1080;
++
++ imx290_set_fmt(subdev, cfg, &fmt);
++
++ return 0;
++}
++
++static int imx290_write_current_format(struct imx290 *imx290,
++ struct v4l2_mbus_framefmt *format)
++{
++ int ret;
++
++ switch (format->code) {
++ case MEDIA_BUS_FMT_SRGGB10_1X10:
++ ret = imx290_set_register_array(imx290, imx290_10bit_settings,
++ ARRAY_SIZE(
++ imx290_10bit_settings));
++ if (ret < 0) {
++ dev_err(imx290->dev, "Could not set format registers\n");
++ return ret;
++ }
++ break;
++ default:
++ dev_err(imx290->dev, "Unknown pixel format\n");
++ return -EINVAL;
++ }
++
++ return 0;
++}
++
++/* Start streaming */
++static int imx290_start_streaming(struct imx290 *imx290)
++{
++ int ret;
++
++ /* Set init register settings */
++ ret = imx290_set_register_array(imx290, imx290_global_init_settings,
++ ARRAY_SIZE(
++ imx290_global_init_settings));
++ if (ret < 0) {
++ dev_err(imx290->dev, "Could not set init registers\n");
++ return ret;
++ }
++
++ /* Set current frame format */
++ ret = imx290_write_current_format(imx290, &imx290->current_format);
++ if (ret < 0) {
++ dev_err(imx290->dev, "Could not set frame format\n");
++ return ret;
++ }
++
++ /* Apply default values of current mode */
++ ret = imx290_set_register_array(imx290, imx290->current_mode->data,
++ imx290->current_mode->data_size);
++ if (ret < 0) {
++ dev_err(imx290->dev, "Could not set current mode\n");
++ return ret;
++ }
++
++ /* Apply customized values from user */
++ ret = v4l2_ctrl_handler_setup(imx290->sd.ctrl_handler);
++ if (ret) {
++ dev_err(imx290->dev, "Could not sync v4l2 controls\n");
++ return ret;
++ }
++
++ ret = imx290_write_reg(imx290, IMX290_STANDBY, 0x00);
++ if (ret < 0)
++ return ret;
++
++ msleep(30);
++
++ /* Start streaming */
++ return imx290_write_reg(imx290, IMX290_XMSTA, 0x00);
++}
++
++static int imx290_set_stream(struct v4l2_subdev *sd, int enable)
++{
++ struct imx290 *imx290 = to_imx290(sd);
++ int ret = 0;
++
++ if (enable) {
++ ret = pm_runtime_get_sync(imx290->dev);
++ if (ret < 0) {
++ pm_runtime_put_noidle(imx290->dev);
++ goto unlock_and_return;
++ }
++
++ ret = imx290_start_streaming(imx290);
++ if (ret) {
++ dev_err(imx290->dev, "Start stream failed\n");
++ pm_runtime_put(imx290->dev);
++ goto unlock_and_return;
++ }
++ } else {
++ imx290_stop_streaming(imx290);
++ pm_runtime_put(imx290->dev);
++ }
++
++unlock_and_return:
++
++ return ret;
++}
++
++static int imx290_get_regulators(struct device *dev, struct imx290 *imx290)
++{
++ unsigned int i;
++
++ for (i = 0; i < IMX290_NUM_SUPPLIES; i++)
++ imx290->supplies[i].supply = imx290_supply_name[i];
++
++ return devm_regulator_bulk_get(dev, IMX290_NUM_SUPPLIES,
++ imx290->supplies);
++}
++
++static int imx290_power_on(struct device *dev)
++{
++ struct i2c_client *client = to_i2c_client(dev);
++ struct v4l2_subdev *sd = i2c_get_clientdata(client);
++ struct imx290 *imx290 = to_imx290(sd);
++ int ret;
++
++ ret = clk_prepare_enable(imx290->xclk);
++ if (ret) {
++ dev_err(imx290->dev, "Failed to enable clock\n");
++ return ret;
++ }
++
++ ret = regulator_bulk_enable(IMX290_NUM_SUPPLIES, imx290->supplies);
++ if (ret) {
++ dev_err(imx290->dev, "Failed to enable regulators\n");
++ clk_disable_unprepare(imx290->xclk);
++ return ret;
++ }
++
++ usleep_range(1, 2);
++ gpiod_set_value_cansleep(imx290->rst_gpio, 1);
++ usleep_range(30000, 31000);
++
++ return 0;
++}
++
++static int imx290_power_off(struct device *dev)
++{
++ struct i2c_client *client = to_i2c_client(dev);
++ struct v4l2_subdev *sd = i2c_get_clientdata(client);
++ struct imx290 *imx290 = to_imx290(sd);
++
++ clk_disable_unprepare(imx290->xclk);
++ gpiod_set_value_cansleep(imx290->rst_gpio, 0);
++ regulator_bulk_disable(IMX290_NUM_SUPPLIES, imx290->supplies);
++
++ return 0;
++}
++
++static const struct dev_pm_ops imx290_pm_ops = {
++ SET_RUNTIME_PM_OPS(imx290_power_on, imx290_power_off, NULL)
++};
++
++static const struct v4l2_subdev_video_ops imx290_video_ops = {
++ .s_stream = imx290_set_stream,
++};
++
++static const struct v4l2_subdev_pad_ops imx290_pad_ops = {
++ .init_cfg = imx290_entity_init_cfg,
++ .enum_mbus_code = imx290_enum_mbus_code,
++ .get_fmt = imx290_get_fmt,
++ .set_fmt = imx290_set_fmt,
++};
++
++static const struct v4l2_subdev_ops imx290_subdev_ops = {
++ .video = &imx290_video_ops,
++ .pad = &imx290_pad_ops,
++};
++
++static const struct media_entity_operations imx290_subdev_entity_ops = {
++ .link_validate = v4l2_subdev_link_validate,
++};
++
++static int imx290_probe(struct i2c_client *client)
++{
++ struct device *dev = &client->dev;
++ struct fwnode_handle *endpoint;
++ struct imx290 *imx290;
++ u32 xclk_freq;
++ int ret;
++
++ imx290 = devm_kzalloc(dev, sizeof(*imx290), GFP_KERNEL);
++ if (!imx290)
++ return -ENOMEM;
++
++ imx290->dev = dev;
++ imx290->regmap = devm_regmap_init_i2c(client, &imx290_regmap_config);
++ if (IS_ERR(imx290->regmap)) {
++ dev_err(dev, "Unable to initialize I2C\n");
++ return -ENODEV;
++ }
++
++ endpoint = fwnode_graph_get_next_endpoint(dev_fwnode(dev), NULL);
++ if (!endpoint) {
++ dev_err(dev, "Endpoint node not found\n");
++ return -EINVAL;
++ }
++
++ ret = v4l2_fwnode_endpoint_alloc_parse(endpoint, &imx290->ep);
++ fwnode_handle_put(endpoint);
++ if (ret) {
++ dev_err(dev, "Parsing endpoint node failed\n");
++ goto free_err;
++ }
++
++ if (!imx290->ep.nr_of_link_frequencies) {
++ dev_err(dev, "link-frequency property not found in DT\n");
++ ret = -EINVAL;
++ goto free_err;
++ }
++
++ if (imx290->ep.link_frequencies[0] != IMX290_DEFAULT_LINK_FREQ) {
++ dev_err(dev, "Unsupported link frequency\n");
++ ret = -EINVAL;
++ goto free_err;
++ }
++
++ /* Only CSI2 is supported for now */
++ if (imx290->ep.bus_type != V4L2_MBUS_CSI2_DPHY) {
++ dev_err(dev, "Unsupported bus type, should be CSI2\n");
++ ret = -EINVAL;
++ goto free_err;
++ }
++
++ /* Set default mode to max resolution */
++ imx290->current_mode = &imx290_modes[0];
++
++ /* get system clock (xclk) */
++ imx290->xclk = devm_clk_get(dev, "xclk");
++ if (IS_ERR(imx290->xclk)) {
++ dev_err(dev, "Could not get xclk");
++ ret = PTR_ERR(imx290->xclk);
++ goto free_err;
++ }
++
++ ret = fwnode_property_read_u32(dev_fwnode(dev), "clock-frequency",
++ &xclk_freq);
++ if (ret) {
++ dev_err(dev, "Could not get xclk frequency\n");
++ goto free_err;
++ }
++
++ /* external clock must be 37.125 MHz */
++ if (xclk_freq != 37125000) {
++ dev_err(dev, "External clock frequency %u is not supported\n",
++ xclk_freq);
++ ret = -EINVAL;
++ goto free_err;
++ }
++
++ ret = clk_set_rate(imx290->xclk, xclk_freq);
++ if (ret) {
++ dev_err(dev, "Could not set xclk frequency\n");
++ goto free_err;
++ }
++
++ ret = imx290_get_regulators(dev, imx290);
++ if (ret < 0) {
++ dev_err(dev, "Cannot get regulators\n");
++ goto free_err;
++ }
++
++ imx290->rst_gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_ASIS);
++ if (IS_ERR(imx290->rst_gpio)) {
++ dev_err(dev, "Cannot get reset gpio\n");
++ ret = PTR_ERR(imx290->rst_gpio);
++ goto free_err;
++ }
++
++ mutex_init(&imx290->lock);
++
++ v4l2_ctrl_handler_init(&imx290->ctrls, 3);
++
++ v4l2_ctrl_new_std(&imx290->ctrls, &imx290_ctrl_ops,
++ V4L2_CID_GAIN, 0, 72, 1, 0);
++ imx290->link_freq =
++ v4l2_ctrl_new_int_menu(&imx290->ctrls,
++ &imx290_ctrl_ops,
++ V4L2_CID_LINK_FREQ,
++ ARRAY_SIZE(imx290_link_freq) - 1,
++ 0, imx290_link_freq);
++ if (imx290->link_freq)
++ imx290->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY;
++
++ imx290->pixel_rate = v4l2_ctrl_new_std(&imx290->ctrls, &imx290_ctrl_ops,
++ V4L2_CID_PIXEL_RATE, 1,
++ INT_MAX, 1,
++ imx290_modes[0].pixel_rate);
++
++ imx290->sd.ctrl_handler = &imx290->ctrls;
++
++ if (imx290->ctrls.error) {
++ dev_err(dev, "Control initialization error %d\n",
++ imx290->ctrls.error);
++ ret = imx290->ctrls.error;
++ goto free_ctrl;
++ }
++
++ v4l2_i2c_subdev_init(&imx290->sd, client, &imx290_subdev_ops);
++ imx290->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
++ imx290->sd.dev = &client->dev;
++ imx290->sd.entity.ops = &imx290_subdev_entity_ops;
++ imx290->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;
++
++ imx290->pad.flags = MEDIA_PAD_FL_SOURCE;
++ ret = media_entity_pads_init(&imx290->sd.entity, 1, &imx290->pad);
++ if (ret < 0) {
++ dev_err(dev, "Could not register media entity\n");
++ goto free_ctrl;
++ }
++
++ ret = v4l2_async_register_subdev(&imx290->sd);
++ if (ret < 0) {
++ dev_err(dev, "Could not register v4l2 device\n");
++ goto free_entity;
++ }
++
++ /* Power on the device to match runtime PM state below */
++ ret = imx290_power_on(dev);
++ if (ret < 0) {
++ dev_err(dev, "Could not power on the device\n");
++ goto free_entity;
++ }
++
++ pm_runtime_set_active(dev);
++ pm_runtime_enable(dev);
++ pm_runtime_idle(dev);
++
++ v4l2_fwnode_endpoint_free(&imx290->ep);
++
++ return 0;
++
++free_entity:
++ media_entity_cleanup(&imx290->sd.entity);
++free_ctrl:
++ v4l2_ctrl_handler_free(&imx290->ctrls);
++ mutex_destroy(&imx290->lock);
++free_err:
++ v4l2_fwnode_endpoint_free(&imx290->ep);
++
++ return ret;
++}
++
++static int imx290_remove(struct i2c_client *client)
++{
++ struct v4l2_subdev *sd = i2c_get_clientdata(client);
++ struct imx290 *imx290 = to_imx290(sd);
++
++ v4l2_async_unregister_subdev(sd);
++ media_entity_cleanup(&sd->entity);
++ v4l2_ctrl_handler_free(sd->ctrl_handler);
++
++ mutex_destroy(&imx290->lock);
++
++ pm_runtime_disable(imx290->dev);
++ if (!pm_runtime_status_suspended(imx290->dev))
++ imx290_power_off(imx290->dev);
++ pm_runtime_set_suspended(imx290->dev);
++
++ return 0;
++}
++
++static const struct of_device_id imx290_of_match[] = {
++ { .compatible = "sony,imx290" },
++ { /* sentinel */ }
++};
++MODULE_DEVICE_TABLE(of, imx290_of_match);
++
++static struct i2c_driver imx290_i2c_driver = {
++ .probe_new = imx290_probe,
++ .remove = imx290_remove,
++ .driver = {
++ .name = "imx290",
++ .pm = &imx290_pm_ops,
++ .of_match_table = of_match_ptr(imx290_of_match),
++ },
++};
++
++module_i2c_driver(imx290_i2c_driver);
++
++MODULE_DESCRIPTION("Sony IMX290 CMOS Image Sensor Driver");
++MODULE_AUTHOR("FRAMOS GmbH");
++MODULE_AUTHOR("Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>");
++MODULE_LICENSE("GPL v2");
generated by cgit v1.2.3 (git 2.25.1) at 2025-01-12 23:55:48 +0000