* [PATCH v4 0/2] Add IMX290 CMOS image sensor support @ 2019-10-03 9:55 ` Manivannan Sadhasivam 0 siblings, 0 replies; 12+ messages in thread From: Manivannan Sadhasivam @ 2019-10-03 9:55 UTC (permalink / raw) To: mchehab, robh+dt, sakari.ailus Cc: linux-media, linux-kernel, devicetree, linux-arm-kernel, c.barrett, a.brela, Manivannan Sadhasivam Hello, This patchset adds support for IMX290 CMOS image sensor from Sony. Sensor can be programmed through I2C and 4-wire interface but the current driver only supports I2C interface. Also, the sensor is capable of outputting frames in following 3 interfaces: * CMOS logic parallel SDR output * Low voltage LVDS serial DDR output * CSI-2 serial data output But the current driver only supports CSI-2 output available from 4 lanes. In the case of sensor resolution, driver only supports 1920x1080 and 1280x720 at mid data rate of 445.5 Mpbs. The driver has been validated using Framos IMX290 module interfaced to 96Boards Dragonboard410c. Thanks, Mani Changes in v4: As per the review by Sakari: * Squashed the MAINTAINERS changes with driver patch * Some misc changes to the driver Changes in v3: As per the review by Sakari: * Switched to pm runtime * Used link-frequency property * Removed useless read calls from buffered read function * Some other misc changes to the driver and binding Changes in v2: * Added Reviewed-by tag from Rob for bindings patch Manivannan Sadhasivam (2): dt-bindings: media: i2c: Add IMX290 CMOS sensor binding media: i2c: Add IMX290 CMOS image sensor driver .../devicetree/bindings/media/i2c/imx290.txt | 57 ++ MAINTAINERS | 8 + drivers/media/i2c/Kconfig | 11 + drivers/media/i2c/Makefile | 1 + drivers/media/i2c/imx290.c | 885 ++++++++++++++++++ 5 files changed, 962 insertions(+) create mode 100644 Documentation/devicetree/bindings/media/i2c/imx290.txt create mode 100644 drivers/media/i2c/imx290.c -- 2.17.1 ^ permalink raw reply [flat|nested] 12+ messages in thread
* [PATCH v4 0/2] Add IMX290 CMOS image sensor support @ 2019-10-03 9:55 ` Manivannan Sadhasivam 0 siblings, 0 replies; 12+ messages in thread From: Manivannan Sadhasivam @ 2019-10-03 9:55 UTC (permalink / raw) To: mchehab, robh+dt, sakari.ailus Cc: devicetree, c.barrett, linux-kernel, a.brela, Manivannan Sadhasivam, linux-arm-kernel, linux-media Hello, This patchset adds support for IMX290 CMOS image sensor from Sony. Sensor can be programmed through I2C and 4-wire interface but the current driver only supports I2C interface. Also, the sensor is capable of outputting frames in following 3 interfaces: * CMOS logic parallel SDR output * Low voltage LVDS serial DDR output * CSI-2 serial data output But the current driver only supports CSI-2 output available from 4 lanes. In the case of sensor resolution, driver only supports 1920x1080 and 1280x720 at mid data rate of 445.5 Mpbs. The driver has been validated using Framos IMX290 module interfaced to 96Boards Dragonboard410c. Thanks, Mani Changes in v4: As per the review by Sakari: * Squashed the MAINTAINERS changes with driver patch * Some misc changes to the driver Changes in v3: As per the review by Sakari: * Switched to pm runtime * Used link-frequency property * Removed useless read calls from buffered read function * Some other misc changes to the driver and binding Changes in v2: * Added Reviewed-by tag from Rob for bindings patch Manivannan Sadhasivam (2): dt-bindings: media: i2c: Add IMX290 CMOS sensor binding media: i2c: Add IMX290 CMOS image sensor driver .../devicetree/bindings/media/i2c/imx290.txt | 57 ++ MAINTAINERS | 8 + drivers/media/i2c/Kconfig | 11 + drivers/media/i2c/Makefile | 1 + drivers/media/i2c/imx290.c | 885 ++++++++++++++++++ 5 files changed, 962 insertions(+) create mode 100644 Documentation/devicetree/bindings/media/i2c/imx290.txt create mode 100644 drivers/media/i2c/imx290.c -- 2.17.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel ^ permalink raw reply [flat|nested] 12+ messages in thread
* [PATCH v4 1/2] dt-bindings: media: i2c: Add IMX290 CMOS sensor binding 2019-10-03 9:55 ` Manivannan Sadhasivam @ 2019-10-03 9:55 ` Manivannan Sadhasivam -1 siblings, 0 replies; 12+ messages in thread From: Manivannan Sadhasivam @ 2019-10-03 9:55 UTC (permalink / raw) To: mchehab, robh+dt, sakari.ailus Cc: linux-media, linux-kernel, devicetree, linux-arm-kernel, c.barrett, a.brela, Manivannan Sadhasivam Add devicetree binding for IMX290 CMOS image sensor. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Reviewed-by: Rob Herring <robh@kernel.org> --- .../devicetree/bindings/media/i2c/imx290.txt | 57 +++++++++++++++++++ 1 file changed, 57 insertions(+) create mode 100644 Documentation/devicetree/bindings/media/i2c/imx290.txt diff --git a/Documentation/devicetree/bindings/media/i2c/imx290.txt b/Documentation/devicetree/bindings/media/i2c/imx290.txt new file mode 100644 index 000000000000..a3cc21410f7c --- /dev/null +++ b/Documentation/devicetree/bindings/media/i2c/imx290.txt @@ -0,0 +1,57 @@ +* Sony IMX290 1/2.8-Inch CMOS Image Sensor + +The Sony IMX290 is a 1/2.8-Inch CMOS Solid-state image sensor with +Square Pixel for Color Cameras. It is programmable through I2C and 4-wire +interfaces. The sensor output is available via CMOS logic parallel SDR output, +Low voltage LVDS DDR output and CSI-2 serial data output. The CSI-2 bus is the +default. No bindings have been defined for the other busses. + +Required Properties: +- compatible: Should be "sony,imx290" +- reg: I2C bus address of the device +- clocks: Reference to the xclk clock. +- clock-names: Should be "xclk". +- clock-frequency: Frequency of the xclk clock in Hz. +- vdddo-supply: Sensor digital IO regulator. +- vdda-supply: Sensor analog regulator. +- vddd-supply: Sensor digital core regulator. + +Optional Properties: +- reset-gpios: Sensor reset GPIO + +The imx290 device node should contain one 'port' child node with +an 'endpoint' subnode. For further reading on port node refer to +Documentation/devicetree/bindings/media/video-interfaces.txt. + +Required Properties on endpoint: +- data-lanes: check ../video-interfaces.txt +- link-frequencies: check ../video-interfaces.txt +- remote-endpoint: check ../video-interfaces.txt + +Example: + &i2c1 { + ... + imx290: camera-sensor@1a { + compatible = "sony,imx290"; + reg = <0x1a>; + + reset-gpios = <&msmgpio 35 GPIO_ACTIVE_LOW>; + pinctrl-names = "default"; + pinctrl-0 = <&camera_rear_default>; + + clocks = <&gcc GCC_CAMSS_MCLK0_CLK>; + clock-names = "xclk"; + clock-frequency = <37125000>; + + vdddo-supply = <&camera_vdddo_1v8>; + vdda-supply = <&camera_vdda_2v8>; + vddd-supply = <&camera_vddd_1v5>; + + port { + imx290_ep: endpoint { + data-lanes = <1 2 3 4>; + link-frequencies = /bits/ 64 <445500000>; + remote-endpoint = <&csiphy0_ep>; + }; + }; + }; -- 2.17.1 ^ permalink raw reply related [flat|nested] 12+ messages in thread
* [PATCH v4 1/2] dt-bindings: media: i2c: Add IMX290 CMOS sensor binding @ 2019-10-03 9:55 ` Manivannan Sadhasivam 0 siblings, 0 replies; 12+ messages in thread From: Manivannan Sadhasivam @ 2019-10-03 9:55 UTC (permalink / raw) To: mchehab, robh+dt, sakari.ailus Cc: devicetree, c.barrett, linux-kernel, a.brela, Manivannan Sadhasivam, linux-arm-kernel, linux-media Add devicetree binding for IMX290 CMOS image sensor. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Reviewed-by: Rob Herring <robh@kernel.org> --- .../devicetree/bindings/media/i2c/imx290.txt | 57 +++++++++++++++++++ 1 file changed, 57 insertions(+) create mode 100644 Documentation/devicetree/bindings/media/i2c/imx290.txt diff --git a/Documentation/devicetree/bindings/media/i2c/imx290.txt b/Documentation/devicetree/bindings/media/i2c/imx290.txt new file mode 100644 index 000000000000..a3cc21410f7c --- /dev/null +++ b/Documentation/devicetree/bindings/media/i2c/imx290.txt @@ -0,0 +1,57 @@ +* Sony IMX290 1/2.8-Inch CMOS Image Sensor + +The Sony IMX290 is a 1/2.8-Inch CMOS Solid-state image sensor with +Square Pixel for Color Cameras. It is programmable through I2C and 4-wire +interfaces. The sensor output is available via CMOS logic parallel SDR output, +Low voltage LVDS DDR output and CSI-2 serial data output. The CSI-2 bus is the +default. No bindings have been defined for the other busses. + +Required Properties: +- compatible: Should be "sony,imx290" +- reg: I2C bus address of the device +- clocks: Reference to the xclk clock. +- clock-names: Should be "xclk". +- clock-frequency: Frequency of the xclk clock in Hz. +- vdddo-supply: Sensor digital IO regulator. +- vdda-supply: Sensor analog regulator. +- vddd-supply: Sensor digital core regulator. + +Optional Properties: +- reset-gpios: Sensor reset GPIO + +The imx290 device node should contain one 'port' child node with +an 'endpoint' subnode. For further reading on port node refer to +Documentation/devicetree/bindings/media/video-interfaces.txt. + +Required Properties on endpoint: +- data-lanes: check ../video-interfaces.txt +- link-frequencies: check ../video-interfaces.txt +- remote-endpoint: check ../video-interfaces.txt + +Example: + &i2c1 { + ... + imx290: camera-sensor@1a { + compatible = "sony,imx290"; + reg = <0x1a>; + + reset-gpios = <&msmgpio 35 GPIO_ACTIVE_LOW>; + pinctrl-names = "default"; + pinctrl-0 = <&camera_rear_default>; + + clocks = <&gcc GCC_CAMSS_MCLK0_CLK>; + clock-names = "xclk"; + clock-frequency = <37125000>; + + vdddo-supply = <&camera_vdddo_1v8>; + vdda-supply = <&camera_vdda_2v8>; + vddd-supply = <&camera_vddd_1v5>; + + port { + imx290_ep: endpoint { + data-lanes = <1 2 3 4>; + link-frequencies = /bits/ 64 <445500000>; + remote-endpoint = <&csiphy0_ep>; + }; + }; + }; -- 2.17.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel ^ permalink raw reply related [flat|nested] 12+ messages in thread
* [PATCH v4 2/2] media: i2c: Add IMX290 CMOS image sensor driver 2019-10-03 9:55 ` Manivannan Sadhasivam @ 2019-10-03 9:55 ` Manivannan Sadhasivam -1 siblings, 0 replies; 12+ messages in thread From: Manivannan Sadhasivam @ 2019-10-03 9:55 UTC (permalink / raw) To: mchehab, robh+dt, sakari.ailus Cc: linux-media, linux-kernel, devicetree, linux-arm-kernel, c.barrett, a.brela, Manivannan Sadhasivam Add driver for Sony IMX290 CMOS image sensor driver. The driver only supports I2C interface for programming and MIPI CSI-2 for sensor output. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> --- MAINTAINERS | 8 + drivers/media/i2c/Kconfig | 11 + drivers/media/i2c/Makefile | 1 + drivers/media/i2c/imx290.c | 885 +++++++++++++++++++++++++++++++++++++ 4 files changed, 905 insertions(+) create mode 100644 drivers/media/i2c/imx290.c diff --git a/MAINTAINERS b/MAINTAINERS index f7c84004187d..0ee261fca602 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -14962,6 +14962,14 @@ S: Maintained F: drivers/media/i2c/imx274.c F: Documentation/devicetree/bindings/media/i2c/imx274.txt +SONY IMX290 SENSOR DRIVER +M: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> +L: linux-media@vger.kernel.org +T: git git://linuxtv.org/media_tree.git +S: Maintained +F: drivers/media/i2c/imx290.c +F: Documentation/devicetree/bindings/media/i2c/imx290.txt + SONY IMX319 SENSOR DRIVER M: Bingbu Cao <bingbu.cao@intel.com> L: linux-media@vger.kernel.org diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig index 79ce9ec6fc1b..cd02ad227d35 100644 --- a/drivers/media/i2c/Kconfig +++ b/drivers/media/i2c/Kconfig @@ -595,6 +595,17 @@ 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_IMX319 tristate "Sony IMX319 sensor support" depends on I2C && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API diff --git a/drivers/media/i2c/Makefile b/drivers/media/i2c/Makefile index fd4ea86dedd5..04411ddb4922 100644 --- a/drivers/media/i2c/Makefile +++ b/drivers/media/i2c/Makefile @@ -111,6 +111,7 @@ obj-$(CONFIG_VIDEO_TC358743) += tc358743.o obj-$(CONFIG_VIDEO_IMX214) += imx214.o obj-$(CONFIG_VIDEO_IMX258) += imx258.o obj-$(CONFIG_VIDEO_IMX274) += imx274.o +obj-$(CONFIG_VIDEO_IMX290) += imx290.o obj-$(CONFIG_VIDEO_IMX319) += imx319.o obj-$(CONFIG_VIDEO_IMX355) += imx355.o obj-$(CONFIG_VIDEO_ST_MIPID02) += st-mipid02.o diff --git a/drivers/media/i2c/imx290.c b/drivers/media/i2c/imx290.c new file mode 100644 index 000000000000..2554447eb5dc --- /dev/null +++ b/drivers/media/i2c/imx290.c @@ -0,0 +1,885 @@ +// 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; + int ret = 0; + + 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 ret; +} + +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"); + goto xclk_off; + } + + usleep_range(1, 2); + gpiod_set_value_cansleep(imx290->rst_gpio, 1); + usleep_range(30000, 31000); + + return 0; + +xclk_off: + clk_disable_unprepare(imx290->xclk); + return ret; +} + +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"); -- 2.17.1 ^ permalink raw reply related [flat|nested] 12+ messages in thread
* [PATCH v4 2/2] media: i2c: Add IMX290 CMOS image sensor driver @ 2019-10-03 9:55 ` Manivannan Sadhasivam 0 siblings, 0 replies; 12+ messages in thread From: Manivannan Sadhasivam @ 2019-10-03 9:55 UTC (permalink / raw) To: mchehab, robh+dt, sakari.ailus Cc: devicetree, c.barrett, linux-kernel, a.brela, Manivannan Sadhasivam, linux-arm-kernel, linux-media Add driver for Sony IMX290 CMOS image sensor driver. The driver only supports I2C interface for programming and MIPI CSI-2 for sensor output. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> --- MAINTAINERS | 8 + drivers/media/i2c/Kconfig | 11 + drivers/media/i2c/Makefile | 1 + drivers/media/i2c/imx290.c | 885 +++++++++++++++++++++++++++++++++++++ 4 files changed, 905 insertions(+) create mode 100644 drivers/media/i2c/imx290.c diff --git a/MAINTAINERS b/MAINTAINERS index f7c84004187d..0ee261fca602 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -14962,6 +14962,14 @@ S: Maintained F: drivers/media/i2c/imx274.c F: Documentation/devicetree/bindings/media/i2c/imx274.txt +SONY IMX290 SENSOR DRIVER +M: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> +L: linux-media@vger.kernel.org +T: git git://linuxtv.org/media_tree.git +S: Maintained +F: drivers/media/i2c/imx290.c +F: Documentation/devicetree/bindings/media/i2c/imx290.txt + SONY IMX319 SENSOR DRIVER M: Bingbu Cao <bingbu.cao@intel.com> L: linux-media@vger.kernel.org diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig index 79ce9ec6fc1b..cd02ad227d35 100644 --- a/drivers/media/i2c/Kconfig +++ b/drivers/media/i2c/Kconfig @@ -595,6 +595,17 @@ 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_IMX319 tristate "Sony IMX319 sensor support" depends on I2C && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API diff --git a/drivers/media/i2c/Makefile b/drivers/media/i2c/Makefile index fd4ea86dedd5..04411ddb4922 100644 --- a/drivers/media/i2c/Makefile +++ b/drivers/media/i2c/Makefile @@ -111,6 +111,7 @@ obj-$(CONFIG_VIDEO_TC358743) += tc358743.o obj-$(CONFIG_VIDEO_IMX214) += imx214.o obj-$(CONFIG_VIDEO_IMX258) += imx258.o obj-$(CONFIG_VIDEO_IMX274) += imx274.o +obj-$(CONFIG_VIDEO_IMX290) += imx290.o obj-$(CONFIG_VIDEO_IMX319) += imx319.o obj-$(CONFIG_VIDEO_IMX355) += imx355.o obj-$(CONFIG_VIDEO_ST_MIPID02) += st-mipid02.o diff --git a/drivers/media/i2c/imx290.c b/drivers/media/i2c/imx290.c new file mode 100644 index 000000000000..2554447eb5dc --- /dev/null +++ b/drivers/media/i2c/imx290.c @@ -0,0 +1,885 @@ +// 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; + int ret = 0; + + 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 ret; +} + +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"); + goto xclk_off; + } + + usleep_range(1, 2); + gpiod_set_value_cansleep(imx290->rst_gpio, 1); + usleep_range(30000, 31000); + + return 0; + +xclk_off: + clk_disable_unprepare(imx290->xclk); + return ret; +} + +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"); -- 2.17.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel ^ permalink raw reply related [flat|nested] 12+ messages in thread
* Re: [PATCH v4 2/2] media: i2c: Add IMX290 CMOS image sensor driver 2019-10-03 9:55 ` Manivannan Sadhasivam @ 2019-10-04 9:23 ` Sakari Ailus -1 siblings, 0 replies; 12+ messages in thread From: Sakari Ailus @ 2019-10-04 9:23 UTC (permalink / raw) To: Manivannan Sadhasivam Cc: mchehab, robh+dt, linux-media, linux-kernel, devicetree, linux-arm-kernel, c.barrett, a.brela Hi Manivannan, On Thu, Oct 03, 2019 at 03:25:03PM +0530, Manivannan Sadhasivam wrote: > Add driver for Sony IMX290 CMOS image sensor driver. The driver only > supports I2C interface for programming and MIPI CSI-2 for sensor output. > > Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Could you remove the unneeded ret variable from imx290_power_on() and unneeded goto in the same function? The MAINTAINERS entry belongs to the first patch adding new files. Then I think this is good. -- Regards, Sakari Ailus ^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [PATCH v4 2/2] media: i2c: Add IMX290 CMOS image sensor driver @ 2019-10-04 9:23 ` Sakari Ailus 0 siblings, 0 replies; 12+ messages in thread From: Sakari Ailus @ 2019-10-04 9:23 UTC (permalink / raw) To: Manivannan Sadhasivam Cc: devicetree, c.barrett, linux-kernel, a.brela, robh+dt, mchehab, linux-arm-kernel, linux-media Hi Manivannan, On Thu, Oct 03, 2019 at 03:25:03PM +0530, Manivannan Sadhasivam wrote: > Add driver for Sony IMX290 CMOS image sensor driver. The driver only > supports I2C interface for programming and MIPI CSI-2 for sensor output. > > Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Could you remove the unneeded ret variable from imx290_power_on() and unneeded goto in the same function? The MAINTAINERS entry belongs to the first patch adding new files. Then I think this is good. -- Regards, Sakari Ailus _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel ^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [PATCH v4 2/2] media: i2c: Add IMX290 CMOS image sensor driver 2019-10-04 9:23 ` Sakari Ailus @ 2019-10-04 10:19 ` Manivannan Sadhasivam -1 siblings, 0 replies; 12+ messages in thread From: Manivannan Sadhasivam @ 2019-10-04 10:19 UTC (permalink / raw) To: Sakari Ailus Cc: mchehab, robh+dt, linux-media, linux-kernel, devicetree, linux-arm-kernel, c.barrett, a.brela Hi Sakari, On Fri, Oct 04, 2019 at 12:23:36PM +0300, Sakari Ailus wrote: > Hi Manivannan, > > On Thu, Oct 03, 2019 at 03:25:03PM +0530, Manivannan Sadhasivam wrote: > > Add driver for Sony IMX290 CMOS image sensor driver. The driver only > > supports I2C interface for programming and MIPI CSI-2 for sensor output. > > > > Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> > > Could you remove the unneeded ret variable from imx290_power_on() and > unneeded goto in the same function? > yep, sure. > The MAINTAINERS entry belongs to the first patch adding new files. > You mean the bindings patch? If then, sorry no. Usually the devicetree bindings belongs to a separate patch and that is what perferred by Rob. I prefer the MAINTAINERS entry in a separate patch but I've seen subsystems maintainers asking to squash it with the driver patch. But squashing it with bindings patch seems weird to me. Thanks, Mani > Then I think this is good. > > -- > Regards, > > Sakari Ailus ^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [PATCH v4 2/2] media: i2c: Add IMX290 CMOS image sensor driver @ 2019-10-04 10:19 ` Manivannan Sadhasivam 0 siblings, 0 replies; 12+ messages in thread From: Manivannan Sadhasivam @ 2019-10-04 10:19 UTC (permalink / raw) To: Sakari Ailus Cc: devicetree, c.barrett, linux-kernel, a.brela, robh+dt, mchehab, linux-arm-kernel, linux-media Hi Sakari, On Fri, Oct 04, 2019 at 12:23:36PM +0300, Sakari Ailus wrote: > Hi Manivannan, > > On Thu, Oct 03, 2019 at 03:25:03PM +0530, Manivannan Sadhasivam wrote: > > Add driver for Sony IMX290 CMOS image sensor driver. The driver only > > supports I2C interface for programming and MIPI CSI-2 for sensor output. > > > > Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> > > Could you remove the unneeded ret variable from imx290_power_on() and > unneeded goto in the same function? > yep, sure. > The MAINTAINERS entry belongs to the first patch adding new files. > You mean the bindings patch? If then, sorry no. Usually the devicetree bindings belongs to a separate patch and that is what perferred by Rob. I prefer the MAINTAINERS entry in a separate patch but I've seen subsystems maintainers asking to squash it with the driver patch. But squashing it with bindings patch seems weird to me. Thanks, Mani > Then I think this is good. > > -- > Regards, > > Sakari Ailus _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel ^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [PATCH v4 2/2] media: i2c: Add IMX290 CMOS image sensor driver 2019-10-04 10:19 ` Manivannan Sadhasivam @ 2019-10-04 10:59 ` Sakari Ailus -1 siblings, 0 replies; 12+ messages in thread From: Sakari Ailus @ 2019-10-04 10:59 UTC (permalink / raw) To: Manivannan Sadhasivam Cc: mchehab, robh+dt, linux-media, linux-kernel, devicetree, linux-arm-kernel, c.barrett, a.brela Hi Manivannan, On Fri, Oct 04, 2019 at 03:49:02PM +0530, Manivannan Sadhasivam wrote: > Hi Sakari, > > On Fri, Oct 04, 2019 at 12:23:36PM +0300, Sakari Ailus wrote: > > Hi Manivannan, > > > > On Thu, Oct 03, 2019 at 03:25:03PM +0530, Manivannan Sadhasivam wrote: > > > Add driver for Sony IMX290 CMOS image sensor driver. The driver only > > > supports I2C interface for programming and MIPI CSI-2 for sensor output. > > > > > > Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> > > > > Could you remove the unneeded ret variable from imx290_power_on() and > > unneeded goto in the same function? > > > > yep, sure. > > > The MAINTAINERS entry belongs to the first patch adding new files. > > > > You mean the bindings patch? If then, sorry no. Usually the devicetree bindings > belongs to a separate patch and that is what perferred by Rob. I prefer the > MAINTAINERS entry in a separate patch but I've seen subsystems maintainers > asking to squash it with the driver patch. But squashing it with bindings > patch seems weird to me. This has been an established practice at least in the media tree. The MAINTAINERS change is small, and bindings come before the driver. And the MAINTAINERS change needs to come no later than files are being added, or a checkpatch.pl warning follows --- which is entirely reasonable. You could put the MAINTAINERS change to a separate patch, yes, but I personally think it fits fine with the DT binding patch. -- Regards, Sakari Ailus ^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [PATCH v4 2/2] media: i2c: Add IMX290 CMOS image sensor driver @ 2019-10-04 10:59 ` Sakari Ailus 0 siblings, 0 replies; 12+ messages in thread From: Sakari Ailus @ 2019-10-04 10:59 UTC (permalink / raw) To: Manivannan Sadhasivam Cc: devicetree, c.barrett, linux-kernel, a.brela, robh+dt, mchehab, linux-arm-kernel, linux-media Hi Manivannan, On Fri, Oct 04, 2019 at 03:49:02PM +0530, Manivannan Sadhasivam wrote: > Hi Sakari, > > On Fri, Oct 04, 2019 at 12:23:36PM +0300, Sakari Ailus wrote: > > Hi Manivannan, > > > > On Thu, Oct 03, 2019 at 03:25:03PM +0530, Manivannan Sadhasivam wrote: > > > Add driver for Sony IMX290 CMOS image sensor driver. The driver only > > > supports I2C interface for programming and MIPI CSI-2 for sensor output. > > > > > > Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> > > > > Could you remove the unneeded ret variable from imx290_power_on() and > > unneeded goto in the same function? > > > > yep, sure. > > > The MAINTAINERS entry belongs to the first patch adding new files. > > > > You mean the bindings patch? If then, sorry no. Usually the devicetree bindings > belongs to a separate patch and that is what perferred by Rob. I prefer the > MAINTAINERS entry in a separate patch but I've seen subsystems maintainers > asking to squash it with the driver patch. But squashing it with bindings > patch seems weird to me. This has been an established practice at least in the media tree. The MAINTAINERS change is small, and bindings come before the driver. And the MAINTAINERS change needs to come no later than files are being added, or a checkpatch.pl warning follows --- which is entirely reasonable. You could put the MAINTAINERS change to a separate patch, yes, but I personally think it fits fine with the DT binding patch. -- Regards, Sakari Ailus _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel ^ permalink raw reply [flat|nested] 12+ messages in thread
end of thread, other threads:[~2019-10-04 10:59 UTC | newest] Thread overview: 12+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2019-10-03 9:55 [PATCH v4 0/2] Add IMX290 CMOS image sensor support Manivannan Sadhasivam 2019-10-03 9:55 ` Manivannan Sadhasivam 2019-10-03 9:55 ` [PATCH v4 1/2] dt-bindings: media: i2c: Add IMX290 CMOS sensor binding Manivannan Sadhasivam 2019-10-03 9:55 ` Manivannan Sadhasivam 2019-10-03 9:55 ` [PATCH v4 2/2] media: i2c: Add IMX290 CMOS image sensor driver Manivannan Sadhasivam 2019-10-03 9:55 ` Manivannan Sadhasivam 2019-10-04 9:23 ` Sakari Ailus 2019-10-04 9:23 ` Sakari Ailus 2019-10-04 10:19 ` Manivannan Sadhasivam 2019-10-04 10:19 ` Manivannan Sadhasivam 2019-10-04 10:59 ` Sakari Ailus 2019-10-04 10:59 ` Sakari Ailus
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