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author | Álvaro Fernández Rojas <noltari@gmail.com> | 2021-02-18 18:04:33 +0100 |
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committer | Álvaro Fernández Rojas <noltari@gmail.com> | 2021-02-19 07:17:21 +0100 |
commit | 62b7f5931c54e96fca56dd8761b0e466d355c881 (patch) | |
tree | 1258b392752379833a075df006c2f6d7ac4be51d /target/linux/bcm27xx/patches-5.4/950-0816-media-i2c-Add-IMX290-CMOS-image-sensor-driver.patch | |
parent | 76d1168d0d4b9d76e2ad78c0fc6b255561deb284 (diff) | |
download | upstream-62b7f5931c54e96fca56dd8761b0e466d355c881.tar.gz upstream-62b7f5931c54e96fca56dd8761b0e466d355c881.tar.bz2 upstream-62b7f5931c54e96fca56dd8761b0e466d355c881.zip |
bcm27xx: import latest patches from the RPi foundation
bcm2708: boot tested on RPi B+ v1.2
bcm2709: boot tested on RPi 3B v1.2 and RPi 4B v1.1 4G
bcm2710: boot tested on RPi 3B v1.2
bcm2711: boot tested on RPi 4B v1.1 4G
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
(cherry-picked from commit f07e572f64)
Diffstat (limited to 'target/linux/bcm27xx/patches-5.4/950-0816-media-i2c-Add-IMX290-CMOS-image-sensor-driver.patch')
-rw-r--r-- | target/linux/bcm27xx/patches-5.4/950-0816-media-i2c-Add-IMX290-CMOS-image-sensor-driver.patch | 939 |
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, ®val); ++ 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"); |