From 58483dcbbb5feca6da79970665950b6b43928e60 Mon Sep 17 00:00:00 2001 From: Naushir Patuck Date: Fri, 8 May 2020 10:00:12 +0100 Subject: [PATCH] media: i2c: Add driver for Sony IMX477 sensor Adds a driver for the 12MPix Sony IMX477 CSI2 sensor. Whilst the sensor supports 2 or 4 CSI2 data lanes, this driver currently only supports 2 lanes. The following Bayer modes are currently available: 4056x3040 12-bit @ 10fps 2028x1520 12-bit (binned) @ 40fps 2028x1050 12-bit (cropped/binned) @ 50fps 1012x760 10-bit (scaled) @ 120 fps Signed-off-by: Naushir Patuck --- MAINTAINERS | 8 + drivers/media/i2c/Kconfig | 11 + drivers/media/i2c/Makefile | 1 + drivers/media/i2c/imx477.c | 2191 ++++++++++++++++++++++++++++++++++++ 4 files changed, 2211 insertions(+) create mode 100644 drivers/media/i2c/imx477.c --- a/MAINTAINERS +++ b/MAINTAINERS @@ -15198,6 +15198,14 @@ T: git git://linuxtv.org/media_tree.git S: Maintained F: drivers/media/i2c/imx355.c +SONY IMX477 SENSOR DRIVER +M: Raspberry Pi Kernel Maintenance +L: linux-media@vger.kernel.org +T: git git://linuxtv.org/media_tree.git +S: Maintained +F: drivers/media/i2c/imx477.c +F: Documentation/devicetree/bindings/media/i2c/imx477.yaml + SONY MEMORYSTICK SUBSYSTEM M: Maxim Levitsky M: Alex Dubov --- 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_IMX477 + tristate "Sony IMX477 sensor support" + depends on I2C && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API + depends on MEDIA_CAMERA_SUPPORT + help + This is a Video4Linux2 sensor driver for the Sony + IMX477 camera. + + To compile this driver as a module, choose M here: the + module will be called imx477. + config VIDEO_IMX319 tristate "Sony IMX319 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-$(CONFIG_VIDEO_IMX477) += imx477.o obj-$(CONFIG_VIDEO_IMX319) += imx319.o obj-$(CONFIG_VIDEO_IMX355) += imx355.o obj-$(CONFIG_VIDEO_ST_MIPID02) += st-mipid02.o --- /dev/null +++ b/drivers/media/i2c/imx477.c @@ -0,0 +1,2191 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * A V4L2 driver for Sony IMX477 cameras. + * Copyright (C) 2020, Raspberry Pi (Trading) Ltd + * + * Based on Sony imx219 camera driver + * Copyright (C) 2019-2020 Raspberry Pi (Trading) Ltd + */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define IMX477_REG_VALUE_08BIT 1 +#define IMX477_REG_VALUE_16BIT 2 + +/* Chip ID */ +#define IMX477_REG_CHIP_ID 0x0016 +#define IMX477_CHIP_ID 0x0477 + +#define IMX477_REG_MODE_SELECT 0x0100 +#define IMX477_MODE_STANDBY 0x00 +#define IMX477_MODE_STREAMING 0x01 + +#define IMX477_REG_ORIENTATION 0x101 + +#define IMX477_XCLK_FREQ 24000000 + +#define IMX477_DEFAULT_LINK_FREQ 450000000 + +/* Pixel rate is fixed at 840MHz for all the modes */ +#define IMX477_PIXEL_RATE 840000000 + +/* V_TIMING internal */ +#define IMX477_REG_FRAME_LENGTH 0x0340 +#define IMX477_FRAME_LENGTH_MAX 0xffdc + +/* Exposure control */ +#define IMX477_REG_EXPOSURE 0x0202 +#define IMX477_EXPOSURE_OFFSET 22 +#define IMX477_EXPOSURE_MIN 20 +#define IMX477_EXPOSURE_STEP 1 +#define IMX477_EXPOSURE_DEFAULT 0x640 +#define IMX477_EXPOSURE_MAX (IMX477_FRAME_LENGTH_MAX - \ + IMX477_EXPOSURE_OFFSET) + +/* Analog gain control */ +#define IMX477_REG_ANALOG_GAIN 0x0204 +#define IMX477_ANA_GAIN_MIN 0 +#define IMX477_ANA_GAIN_MAX 978 +#define IMX477_ANA_GAIN_STEP 1 +#define IMX477_ANA_GAIN_DEFAULT 0x0 + +/* Digital gain control */ +#define IMX477_REG_DIGITAL_GAIN 0x020e +#define IMX477_DGTL_GAIN_MIN 0x0100 +#define IMX477_DGTL_GAIN_MAX 0xffff +#define IMX477_DGTL_GAIN_DEFAULT 0x0100 +#define IMX477_DGTL_GAIN_STEP 1 + +/* Test Pattern Control */ +#define IMX477_REG_TEST_PATTERN 0x0600 +#define IMX477_TEST_PATTERN_DISABLE 0 +#define IMX477_TEST_PATTERN_SOLID_COLOR 1 +#define IMX477_TEST_PATTERN_COLOR_BARS 2 +#define IMX477_TEST_PATTERN_GREY_COLOR 3 +#define IMX477_TEST_PATTERN_PN9 4 + +/* Test pattern colour components */ +#define IMX477_REG_TEST_PATTERN_R 0x0602 +#define IMX477_REG_TEST_PATTERN_GR 0x0604 +#define IMX477_REG_TEST_PATTERN_B 0x0606 +#define IMX477_REG_TEST_PATTERN_GB 0x0608 +#define IMX477_TEST_PATTERN_COLOUR_MIN 0 +#define IMX477_TEST_PATTERN_COLOUR_MAX 0x0fff +#define IMX477_TEST_PATTERN_COLOUR_STEP 1 +#define IMX477_TEST_PATTERN_R_DEFAULT IMX477_TEST_PATTERN_COLOUR_MAX +#define IMX477_TEST_PATTERN_GR_DEFAULT 0 +#define IMX477_TEST_PATTERN_B_DEFAULT 0 +#define IMX477_TEST_PATTERN_GB_DEFAULT 0 + +/* Embedded metadata stream structure */ +#define IMX477_EMBEDDED_LINE_WIDTH 16384 +#define IMX477_NUM_EMBEDDED_LINES 1 + +enum pad_types { + IMAGE_PAD, + METADATA_PAD, + NUM_PADS +}; + +/* IMX477 native and active pixel array size. */ +#define IMX477_NATIVE_WIDTH 4072U +#define IMX477_NATIVE_HEIGHT 3176U +#define IMX477_PIXEL_ARRAY_LEFT 8U +#define IMX477_PIXEL_ARRAY_TOP 16U +#define IMX477_PIXEL_ARRAY_WIDTH 4056U +#define IMX477_PIXEL_ARRAY_HEIGHT 3040U + +struct imx477_reg { + u16 address; + u8 val; +}; + +struct imx477_reg_list { + unsigned int num_of_regs; + const struct imx477_reg *regs; +}; + +/* Mode : resolution and related config&values */ +struct imx477_mode { + /* Frame width */ + unsigned int width; + + /* Frame height */ + unsigned int height; + + /* H-timing in pixels */ + unsigned int line_length_pix; + + /* Analog crop rectangle. */ + struct v4l2_rect crop; + + /* Highest possible framerate. */ + struct v4l2_fract timeperframe_min; + + /* Default framerate. */ + struct v4l2_fract timeperframe_default; + + /* Default register values */ + struct imx477_reg_list reg_list; +}; + +static const struct imx477_reg mode_common_regs[] = { + {0x0136, 0x18}, + {0x0137, 0x00}, + {0xe000, 0x00}, + {0xe07a, 0x01}, + {0x0808, 0x02}, + {0x4ae9, 0x18}, + {0x4aea, 0x08}, + {0xf61c, 0x04}, + {0xf61e, 0x04}, + {0x4ae9, 0x21}, + {0x4aea, 0x80}, + {0x38a8, 0x1f}, + {0x38a9, 0xff}, + {0x38aa, 0x1f}, + {0x38ab, 0xff}, + {0x55d4, 0x00}, + {0x55d5, 0x00}, + {0x55d6, 0x07}, + {0x55d7, 0xff}, + {0x55e8, 0x07}, + {0x55e9, 0xff}, + {0x55ea, 0x00}, + {0x55eb, 0x00}, + {0x574c, 0x07}, + {0x574d, 0xff}, + {0x574e, 0x00}, + {0x574f, 0x00}, + {0x5754, 0x00}, + {0x5755, 0x00}, + {0x5756, 0x07}, + {0x5757, 0xff}, + {0x5973, 0x04}, + {0x5974, 0x01}, + {0x5d13, 0xc3}, + {0x5d14, 0x58}, + {0x5d15, 0xa3}, + {0x5d16, 0x1d}, + {0x5d17, 0x65}, + {0x5d18, 0x8c}, + {0x5d1a, 0x06}, + {0x5d1b, 0xa9}, + {0x5d1c, 0x45}, + {0x5d1d, 0x3a}, + {0x5d1e, 0xab}, + {0x5d1f, 0x15}, + {0x5d21, 0x0e}, + {0x5d22, 0x52}, + {0x5d23, 0xaa}, + {0x5d24, 0x7d}, + {0x5d25, 0x57}, + {0x5d26, 0xa8}, + {0x5d37, 0x5a}, + {0x5d38, 0x5a}, + {0x5d77, 0x7f}, + {0x7b75, 0x0e}, + {0x7b76, 0x0b}, + {0x7b77, 0x08}, + {0x7b78, 0x0a}, + {0x7b79, 0x47}, + {0x7b7c, 0x00}, + {0x7b7d, 0x00}, + {0x8d1f, 0x00}, + {0x8d27, 0x00}, + {0x9004, 0x03}, + {0x9200, 0x50}, + {0x9201, 0x6c}, + {0x9202, 0x71}, + {0x9203, 0x00}, + {0x9204, 0x71}, + {0x9205, 0x01}, + {0x9371, 0x6a}, + {0x9373, 0x6a}, + {0x9375, 0x64}, + {0x991a, 0x00}, + {0x996b, 0x8c}, + {0x996c, 0x64}, + {0x996d, 0x50}, + {0x9a4c, 0x0d}, + {0x9a4d, 0x0d}, + {0xa001, 0x0a}, + {0xa003, 0x0a}, + {0xa005, 0x0a}, + {0xa006, 0x01}, + {0xa007, 0xc0}, + {0xa009, 0xc0}, + {0x3d8a, 0x01}, + {0x4421, 0x04}, + {0x7b3b, 0x01}, + {0x7b4c, 0x00}, + {0x9905, 0x00}, + {0x9907, 0x00}, + {0x9909, 0x00}, + {0x990b, 0x00}, + {0x9944, 0x3c}, + {0x9947, 0x3c}, + {0x994a, 0x8c}, + {0x994b, 0x50}, + {0x994c, 0x1b}, + {0x994d, 0x8c}, + {0x994e, 0x50}, + {0x994f, 0x1b}, + {0x9950, 0x8c}, + {0x9951, 0x1b}, + {0x9952, 0x0a}, + {0x9953, 0x8c}, + {0x9954, 0x1b}, + {0x9955, 0x0a}, + {0x9a13, 0x04}, + {0x9a14, 0x04}, + {0x9a19, 0x00}, + {0x9a1c, 0x04}, + {0x9a1d, 0x04}, + {0x9a26, 0x05}, + {0x9a27, 0x05}, + {0x9a2c, 0x01}, + {0x9a2d, 0x03}, + {0x9a2f, 0x05}, + {0x9a30, 0x05}, + {0x9a41, 0x00}, + {0x9a46, 0x00}, + {0x9a47, 0x00}, + {0x9c17, 0x35}, + {0x9c1d, 0x31}, + {0x9c29, 0x50}, + {0x9c3b, 0x2f}, + {0x9c41, 0x6b}, + {0x9c47, 0x2d}, + {0x9c4d, 0x40}, + {0x9c6b, 0x00}, + {0x9c71, 0xc8}, + {0x9c73, 0x32}, + {0x9c75, 0x04}, + {0x9c7d, 0x2d}, + {0x9c83, 0x40}, + {0x9c94, 0x3f}, + {0x9c95, 0x3f}, + {0x9c96, 0x3f}, + {0x9c97, 0x00}, + {0x9c98, 0x00}, + {0x9c99, 0x00}, + {0x9c9a, 0x3f}, + {0x9c9b, 0x3f}, + {0x9c9c, 0x3f}, + {0x9ca0, 0x0f}, + {0x9ca1, 0x0f}, + {0x9ca2, 0x0f}, + {0x9ca3, 0x00}, + {0x9ca4, 0x00}, + {0x9ca5, 0x00}, + {0x9ca6, 0x1e}, + {0x9ca7, 0x1e}, + {0x9ca8, 0x1e}, + {0x9ca9, 0x00}, + {0x9caa, 0x00}, + {0x9cab, 0x00}, + {0x9cac, 0x09}, + {0x9cad, 0x09}, + {0x9cae, 0x09}, + {0x9cbd, 0x50}, + {0x9cbf, 0x50}, + {0x9cc1, 0x50}, + {0x9cc3, 0x40}, + {0x9cc5, 0x40}, + {0x9cc7, 0x40}, + {0x9cc9, 0x0a}, + {0x9ccb, 0x0a}, + {0x9ccd, 0x0a}, + {0x9d17, 0x35}, + {0x9d1d, 0x31}, + {0x9d29, 0x50}, + {0x9d3b, 0x2f}, + {0x9d41, 0x6b}, + {0x9d47, 0x42}, + {0x9d4d, 0x5a}, + {0x9d6b, 0x00}, + {0x9d71, 0xc8}, + {0x9d73, 0x32}, + {0x9d75, 0x04}, + {0x9d7d, 0x42}, + {0x9d83, 0x5a}, + {0x9d94, 0x3f}, + {0x9d95, 0x3f}, + {0x9d96, 0x3f}, + {0x9d97, 0x00}, + {0x9d98, 0x00}, + {0x9d99, 0x00}, + {0x9d9a, 0x3f}, + {0x9d9b, 0x3f}, + {0x9d9c, 0x3f}, + {0x9d9d, 0x1f}, + {0x9d9e, 0x1f}, + {0x9d9f, 0x1f}, + {0x9da0, 0x0f}, + {0x9da1, 0x0f}, + {0x9da2, 0x0f}, + {0x9da3, 0x00}, + {0x9da4, 0x00}, + {0x9da5, 0x00}, + {0x9da6, 0x1e}, + {0x9da7, 0x1e}, + {0x9da8, 0x1e}, + {0x9da9, 0x00}, + {0x9daa, 0x00}, + {0x9dab, 0x00}, + {0x9dac, 0x09}, + {0x9dad, 0x09}, + {0x9dae, 0x09}, + {0x9dc9, 0x0a}, + {0x9dcb, 0x0a}, + {0x9dcd, 0x0a}, + {0x9e17, 0x35}, + {0x9e1d, 0x31}, + {0x9e29, 0x50}, + {0x9e3b, 0x2f}, + {0x9e41, 0x6b}, + {0x9e47, 0x2d}, + {0x9e4d, 0x40}, + {0x9e6b, 0x00}, + {0x9e71, 0xc8}, + {0x9e73, 0x32}, + {0x9e75, 0x04}, + {0x9e94, 0x0f}, + {0x9e95, 0x0f}, + {0x9e96, 0x0f}, + {0x9e97, 0x00}, + {0x9e98, 0x00}, + {0x9e99, 0x00}, + {0x9ea0, 0x0f}, + {0x9ea1, 0x0f}, + {0x9ea2, 0x0f}, + {0x9ea3, 0x00}, + {0x9ea4, 0x00}, + {0x9ea5, 0x00}, + {0x9ea6, 0x3f}, + {0x9ea7, 0x3f}, + {0x9ea8, 0x3f}, + {0x9ea9, 0x00}, + {0x9eaa, 0x00}, + {0x9eab, 0x00}, + {0x9eac, 0x09}, + {0x9ead, 0x09}, + {0x9eae, 0x09}, + {0x9ec9, 0x0a}, + {0x9ecb, 0x0a}, + {0x9ecd, 0x0a}, + {0x9f17, 0x35}, + {0x9f1d, 0x31}, + {0x9f29, 0x50}, + {0x9f3b, 0x2f}, + {0x9f41, 0x6b}, + {0x9f47, 0x42}, + {0x9f4d, 0x5a}, + {0x9f6b, 0x00}, + {0x9f71, 0xc8}, + {0x9f73, 0x32}, + {0x9f75, 0x04}, + {0x9f94, 0x0f}, + {0x9f95, 0x0f}, + {0x9f96, 0x0f}, + {0x9f97, 0x00}, + {0x9f98, 0x00}, + {0x9f99, 0x00}, + {0x9f9a, 0x2f}, + {0x9f9b, 0x2f}, + {0x9f9c, 0x2f}, + {0x9f9d, 0x00}, + {0x9f9e, 0x00}, + {0x9f9f, 0x00}, + {0x9fa0, 0x0f}, + {0x9fa1, 0x0f}, + {0x9fa2, 0x0f}, + {0x9fa3, 0x00}, + {0x9fa4, 0x00}, + {0x9fa5, 0x00}, + {0x9fa6, 0x1e}, + {0x9fa7, 0x1e}, + {0x9fa8, 0x1e}, + {0x9fa9, 0x00}, + {0x9faa, 0x00}, + {0x9fab, 0x00}, + {0x9fac, 0x09}, + {0x9fad, 0x09}, + {0x9fae, 0x09}, + {0x9fc9, 0x0a}, + {0x9fcb, 0x0a}, + {0x9fcd, 0x0a}, + {0xa14b, 0xff}, + {0xa151, 0x0c}, + {0xa153, 0x50}, + {0xa155, 0x02}, + {0xa157, 0x00}, + {0xa1ad, 0xff}, + {0xa1b3, 0x0c}, + {0xa1b5, 0x50}, + {0xa1b9, 0x00}, + {0xa24b, 0xff}, + {0xa257, 0x00}, + {0xa2ad, 0xff}, + {0xa2b9, 0x00}, + {0xb21f, 0x04}, + {0xb35c, 0x00}, + {0xb35e, 0x08}, + {0x0112, 0x0c}, + {0x0113, 0x0c}, + {0x0114, 0x01}, + {0x0350, 0x00}, + {0xbcf1, 0x02}, + {0x3ff9, 0x01}, +}; + +/* 12 mpix 10fps */ +static const struct imx477_reg mode_4056x3040_regs[] = { + {0x0342, 0x5d}, + {0x0343, 0xc0}, + {0x0344, 0x00}, + {0x0345, 0x00}, + {0x0346, 0x00}, + {0x0347, 0x00}, + {0x0348, 0x0f}, + {0x0349, 0xd7}, + {0x034a, 0x0b}, + {0x034b, 0xdf}, + {0x00e3, 0x00}, + {0x00e4, 0x00}, + {0x00fc, 0x0a}, + {0x00fd, 0x0a}, + {0x00fe, 0x0a}, + {0x00ff, 0x0a}, + {0x0220, 0x00}, + {0x0221, 0x11}, + {0x0381, 0x01}, + {0x0383, 0x01}, + {0x0385, 0x01}, + {0x0387, 0x01}, + {0x0900, 0x00}, + {0x0901, 0x11}, + {0x0902, 0x02}, + {0x3140, 0x02}, + {0x3c00, 0x00}, + {0x3c01, 0x03}, + {0x3c02, 0xa2}, + {0x3f0d, 0x01}, + {0x5748, 0x07}, + {0x5749, 0xff}, + {0x574a, 0x00}, + {0x574b, 0x00}, + {0x7b75, 0x0a}, + {0x7b76, 0x0c}, + {0x7b77, 0x07}, + {0x7b78, 0x06}, + {0x7b79, 0x3c}, + {0x7b53, 0x01}, + {0x9369, 0x5a}, + {0x936b, 0x55}, + {0x936d, 0x28}, + {0x9304, 0x00}, + {0x9305, 0x00}, + {0x9e9a, 0x2f}, + {0x9e9b, 0x2f}, + {0x9e9c, 0x2f}, + {0x9e9d, 0x00}, + {0x9e9e, 0x00}, + {0x9e9f, 0x00}, + {0xa2a9, 0x60}, + {0xa2b7, 0x00}, + {0x0401, 0x00}, + {0x0404, 0x00}, + {0x0405, 0x10}, + {0x0408, 0x00}, + {0x0409, 0x00}, + {0x040a, 0x00}, + {0x040b, 0x00}, + {0x040c, 0x0f}, + {0x040d, 0xd8}, + {0x040e, 0x0b}, + {0x040f, 0xe0}, + {0x034c, 0x0f}, + {0x034d, 0xd8}, + {0x034e, 0x0b}, + {0x034f, 0xe0}, + {0x0301, 0x05}, + {0x0303, 0x02}, + {0x0305, 0x04}, + {0x0306, 0x01}, + {0x0307, 0x5e}, + {0x0309, 0x0c}, + {0x030b, 0x02}, + {0x030d, 0x02}, + {0x030e, 0x00}, + {0x030f, 0x96}, + {0x0310, 0x01}, + {0x0820, 0x07}, + {0x0821, 0x08}, + {0x0822, 0x00}, + {0x0823, 0x00}, + {0x080a, 0x00}, + {0x080b, 0x7f}, + {0x080c, 0x00}, + {0x080d, 0x4f}, + {0x080e, 0x00}, + {0x080f, 0x77}, + {0x0810, 0x00}, + {0x0811, 0x5f}, + {0x0812, 0x00}, + {0x0813, 0x57}, + {0x0814, 0x00}, + {0x0815, 0x4f}, + {0x0816, 0x01}, + {0x0817, 0x27}, + {0x0818, 0x00}, + {0x0819, 0x3f}, + {0xe04c, 0x00}, + {0xe04d, 0x7f}, + {0xe04e, 0x00}, + {0xe04f, 0x1f}, + {0x3e20, 0x01}, + {0x3e37, 0x00}, + {0x3f50, 0x00}, + {0x3f56, 0x02}, + {0x3f57, 0xae}, +}; + +/* 2x2 binned. 40fps */ +static const struct imx477_reg mode_2028x1520_regs[] = { + {0x0342, 0x31}, + {0x0343, 0xc4}, + {0x0344, 0x00}, + {0x0345, 0x00}, + {0x0346, 0x00}, + {0x0347, 0x00}, + {0x0348, 0x0f}, + {0x0349, 0xd7}, + {0x034a, 0x0b}, + {0x034b, 0xdf}, + {0x0220, 0x00}, + {0x0221, 0x11}, + {0x0381, 0x01}, + {0x0383, 0x01}, + {0x0385, 0x01}, + {0x0387, 0x01}, + {0x0900, 0x01}, + {0x0901, 0x12}, + {0x0902, 0x02}, + {0x3140, 0x02}, + {0x3c00, 0x00}, + {0x3c01, 0x03}, + {0x3c02, 0xa2}, + {0x3f0d, 0x01}, + {0x5748, 0x07}, + {0x5749, 0xff}, + {0x574a, 0x00}, + {0x574b, 0x00}, + {0x7b53, 0x01}, + {0x9369, 0x73}, + {0x936b, 0x64}, + {0x936d, 0x5f}, + {0x9304, 0x00}, + {0x9305, 0x00}, + {0x9e9a, 0x2f}, + {0x9e9b, 0x2f}, + {0x9e9c, 0x2f}, + {0x9e9d, 0x00}, + {0x9e9e, 0x00}, + {0x9e9f, 0x00}, + {0xa2a9, 0x60}, + {0xa2b7, 0x00}, + {0x0401, 0x01}, + {0x0404, 0x00}, + {0x0405, 0x20}, + {0x0408, 0x00}, + {0x0409, 0x00}, + {0x040a, 0x00}, + {0x040b, 0x00}, + {0x040c, 0x0f}, + {0x040d, 0xd8}, + {0x040e, 0x0b}, + {0x040f, 0xe0}, + {0x034c, 0x07}, + {0x034d, 0xec}, + {0x034e, 0x05}, + {0x034f, 0xf0}, + {0x0301, 0x05}, + {0x0303, 0x02}, + {0x0305, 0x04}, + {0x0306, 0x01}, + {0x0307, 0x5e}, + {0x0309, 0x0c}, + {0x030b, 0x02}, + {0x030d, 0x02}, + {0x030e, 0x00}, + {0x030f, 0x96}, + {0x0310, 0x01}, + {0x0820, 0x07}, + {0x0821, 0x08}, + {0x0822, 0x00}, + {0x0823, 0x00}, + {0x080a, 0x00}, + {0x080b, 0x7f}, + {0x080c, 0x00}, + {0x080d, 0x4f}, + {0x080e, 0x00}, + {0x080f, 0x77}, + {0x0810, 0x00}, + {0x0811, 0x5f}, + {0x0812, 0x00}, + {0x0813, 0x57}, + {0x0814, 0x00}, + {0x0815, 0x4f}, + {0x0816, 0x01}, + {0x0817, 0x27}, + {0x0818, 0x00}, + {0x0819, 0x3f}, + {0xe04c, 0x00}, + {0xe04d, 0x7f}, + {0xe04e, 0x00}, + {0xe04f, 0x1f}, + {0x3e20, 0x01}, + {0x3e37, 0x00}, + {0x3f50, 0x00}, + {0x3f56, 0x01}, + {0x3f57, 0x6c}, +}; + +/* 1080p cropped mode */ +static const struct imx477_reg mode_2028x1080_regs[] = { + {0x0342, 0x31}, + {0x0343, 0xc4}, + {0x0344, 0x00}, + {0x0345, 0x00}, + {0x0346, 0x01}, + {0x0347, 0xb8}, + {0x0348, 0x0f}, + {0x0349, 0xd7}, + {0x034a, 0x0a}, + {0x034b, 0x27}, + {0x0220, 0x00}, + {0x0221, 0x11}, + {0x0381, 0x01}, + {0x0383, 0x01}, + {0x0385, 0x01}, + {0x0387, 0x01}, + {0x0900, 0x01}, + {0x0901, 0x12}, + {0x0902, 0x02}, + {0x3140, 0x02}, + {0x3c00, 0x00}, + {0x3c01, 0x03}, + {0x3c02, 0xa2}, + {0x3f0d, 0x01}, + {0x5748, 0x07}, + {0x5749, 0xff}, + {0x574a, 0x00}, + {0x574b, 0x00}, + {0x7b53, 0x01}, + {0x9369, 0x73}, + {0x936b, 0x64}, + {0x936d, 0x5f}, + {0x9304, 0x00}, + {0x9305, 0x00}, + {0x9e9a, 0x2f}, + {0x9e9b, 0x2f}, + {0x9e9c, 0x2f}, + {0x9e9d, 0x00}, + {0x9e9e, 0x00}, + {0x9e9f, 0x00}, + {0xa2a9, 0x60}, + {0xa2b7, 0x00}, + {0x0401, 0x01}, + {0x0404, 0x00}, + {0x0405, 0x20}, + {0x0408, 0x00}, + {0x0409, 0x00}, + {0x040a, 0x00}, + {0x040b, 0x00}, + {0x040c, 0x0f}, + {0x040d, 0xd8}, + {0x040e, 0x04}, + {0x040f, 0x38}, + {0x034c, 0x07}, + {0x034d, 0xec}, + {0x034e, 0x04}, + {0x034f, 0x38}, + {0x0301, 0x05}, + {0x0303, 0x02}, + {0x0305, 0x04}, + {0x0306, 0x01}, + {0x0307, 0x5e}, + {0x0309, 0x0c}, + {0x030b, 0x02}, + {0x030d, 0x02}, + {0x030e, 0x00}, + {0x030f, 0x96}, + {0x0310, 0x01}, + {0x0820, 0x07}, + {0x0821, 0x08}, + {0x0822, 0x00}, + {0x0823, 0x00}, + {0x080a, 0x00}, + {0x080b, 0x7f}, + {0x080c, 0x00}, + {0x080d, 0x4f}, + {0x080e, 0x00}, + {0x080f, 0x77}, + {0x0810, 0x00}, + {0x0811, 0x5f}, + {0x0812, 0x00}, + {0x0813, 0x57}, + {0x0814, 0x00}, + {0x0815, 0x4f}, + {0x0816, 0x01}, + {0x0817, 0x27}, + {0x0818, 0x00}, + {0x0819, 0x3f}, + {0xe04c, 0x00}, + {0xe04d, 0x7f}, + {0xe04e, 0x00}, + {0xe04f, 0x1f}, + {0x3e20, 0x01}, + {0x3e37, 0x00}, + {0x3f50, 0x00}, + {0x3f56, 0x01}, + {0x3f57, 0x6c}, +}; + +/* 4x4 binned. 120fps */ +static const struct imx477_reg mode_1012x760_regs[] = { + {0x420b, 0x01}, + {0x990c, 0x00}, + {0x990d, 0x08}, + {0x9956, 0x8c}, + {0x9957, 0x64}, + {0x9958, 0x50}, + {0x9a48, 0x06}, + {0x9a49, 0x06}, + {0x9a4a, 0x06}, + {0x9a4b, 0x06}, + {0x9a4c, 0x06}, + {0x9a4d, 0x06}, + {0x0112, 0x0a}, + {0x0113, 0x0a}, + {0x0114, 0x01}, + {0x0342, 0x14}, + {0x0343, 0x60}, + {0x0344, 0x00}, + {0x0345, 0x00}, + {0x0346, 0x00}, + {0x0347, 0x00}, + {0x0348, 0x0f}, + {0x0349, 0xd3}, + {0x034a, 0x0b}, + {0x034b, 0xdf}, + {0x00e3, 0x00}, + {0x00e4, 0x00}, + {0x00fc, 0x0a}, + {0x00fd, 0x0a}, + {0x00fe, 0x0a}, + {0x00ff, 0x0a}, + {0x0220, 0x00}, + {0x0221, 0x11}, + {0x0381, 0x01}, + {0x0383, 0x01}, + {0x0385, 0x01}, + {0x0387, 0x03}, + {0x0900, 0x01}, + {0x0901, 0x22}, + {0x0902, 0x02}, + {0x3140, 0x02}, + {0x3c00, 0x00}, + {0x3c01, 0x01}, + {0x3c02, 0x9c}, + {0x3f0d, 0x00}, + {0x5748, 0x00}, + {0x5749, 0x00}, + {0x574a, 0x00}, + {0x574b, 0xa4}, + {0x7b75, 0x0e}, + {0x7b76, 0x09}, + {0x7b77, 0x08}, + {0x7b78, 0x06}, + {0x7b79, 0x34}, + {0x7b53, 0x00}, + {0x9369, 0x73}, + {0x936b, 0x64}, + {0x936d, 0x5f}, + {0x9304, 0x03}, + {0x9305, 0x80}, + {0x9e9a, 0x3f}, + {0x9e9b, 0x3f}, + {0x9e9c, 0x3f}, + {0x9e9d, 0x27}, + {0x9e9e, 0x27}, + {0x9e9f, 0x27}, + {0xa2a9, 0x27}, + {0xa2b7, 0x03}, + {0x0401, 0x01}, + {0x0404, 0x00}, + {0x0405, 0x20}, + {0x0408, 0x00}, + {0x0409, 0x00}, + {0x040a, 0x00}, + {0x040b, 0x00}, + {0x040c, 0x07}, + {0x040d, 0xea}, + {0x040e, 0x02}, + {0x040f, 0xf8}, + {0x034c, 0x03}, + {0x034d, 0xf4}, + {0x034e, 0x02}, + {0x034f, 0xf8}, + {0x0301, 0x05}, + {0x0303, 0x02}, + {0x0305, 0x02}, + {0x0306, 0x00}, + {0x0307, 0xaf}, + {0x0309, 0x0a}, + {0x030b, 0x02}, + {0x030d, 0x02}, + {0x030e, 0x00}, + {0x030f, 0x96}, + {0x0310, 0x01}, + {0x0820, 0x07}, + {0x0821, 0x08}, + {0x0822, 0x00}, + {0x0823, 0x00}, + {0x080a, 0x00}, + {0x080b, 0x6f}, + {0x080c, 0x00}, + {0x080d, 0x3f}, + {0x080e, 0x00}, + {0x080f, 0xff}, + {0x0810, 0x00}, + {0x0811, 0x4f}, + {0x0812, 0x00}, + {0x0813, 0x47}, + {0x0814, 0x00}, + {0x0815, 0x37}, + {0x0816, 0x00}, + {0x0817, 0xe7}, + {0x0818, 0x00}, + {0x0819, 0x2f}, + {0xe04c, 0x00}, + {0xe04d, 0x5f}, + {0xe04e, 0x00}, + {0xe04f, 0x1f}, + {0x3e20, 0x01}, + {0x3e37, 0x00}, + {0x3f50, 0x00}, + {0x3f56, 0x00}, + {0x3f57, 0x96}, +}; + +/* Mode configs */ +static const struct imx477_mode supported_modes_12bit[] = { + { + /* 12MPix 10fps mode */ + .width = 4056, + .height = 3040, + .line_length_pix = 0x5dc0, + .crop = { + .left = 0, + .top = 0, + .width = 4056, + .height = 3040, + }, + .timeperframe_min = { + .numerator = 100, + .denominator = 1000 + }, + .timeperframe_default = { + .numerator = 100, + .denominator = 1000 + }, + .reg_list = { + .num_of_regs = ARRAY_SIZE(mode_4056x3040_regs), + .regs = mode_4056x3040_regs, + }, + }, + { + /* 2x2 binned 40fps mode */ + .width = 2028, + .height = 1520, + .line_length_pix = 0x31c4, + .crop = { + .left = 0, + .top = 0, + .width = 4056, + .height = 3040, + }, + .timeperframe_min = { + .numerator = 100, + .denominator = 4000 + }, + .timeperframe_default = { + .numerator = 100, + .denominator = 3000 + }, + .reg_list = { + .num_of_regs = ARRAY_SIZE(mode_2028x1520_regs), + .regs = mode_2028x1520_regs, + }, + }, + { + /* 1080p 50fps cropped mode */ + .width = 2028, + .height = 1080, + .line_length_pix = 0x31c4, + .crop = { + .left = 0, + .top = 440, + .width = 4056, + .height = 2600, + }, + .timeperframe_min = { + .numerator = 100, + .denominator = 5000 + }, + .timeperframe_default = { + .numerator = 100, + .denominator = 3000 + }, + .reg_list = { + .num_of_regs = ARRAY_SIZE(mode_2028x1080_regs), + .regs = mode_2028x1080_regs, + }, + } +}; + +static const struct imx477_mode supported_modes_10bit[] = { + { + /* 720P 120fps. 4x4 binned */ + .width = 1012, + .height = 760, + .line_length_pix = 0x1460, + .crop = { + /* + * FIXME: the analog crop rectangle is actually + * programmed with a horizontal displacement of 0 + * pixels, not 4. It gets shrunk after going through + * the scaler. Move this information to the compose + * rectangle once the driver is expanded to represent + * its processing blocks with multiple subdevs. + */ + .left = 4, + .top = 0, + .width = 4052, + .height = 3040, + }, + .timeperframe_min = { + .numerator = 100, + .denominator = 12000 + }, + .timeperframe_default = { + .numerator = 100, + .denominator = 60000 + }, + .reg_list = { + .num_of_regs = ARRAY_SIZE(mode_1012x760_regs), + .regs = mode_1012x760_regs, + } + } +}; + +/* + * The supported formats. + * This table MUST contain 4 entries per format, to cover the various flip + * combinations in the order + * - no flip + * - h flip + * - v flip + * - h&v flips + */ +static const u32 codes[] = { + /* 12-bit modes. */ + MEDIA_BUS_FMT_SRGGB12_1X12, + MEDIA_BUS_FMT_SGRBG12_1X12, + MEDIA_BUS_FMT_SGBRG12_1X12, + MEDIA_BUS_FMT_SBGGR12_1X12, + /* 10-bit modes. */ + MEDIA_BUS_FMT_SRGGB10_1X10, + MEDIA_BUS_FMT_SGRBG10_1X10, + MEDIA_BUS_FMT_SGBRG10_1X10, + MEDIA_BUS_FMT_SBGGR10_1X10, +}; + +static const char * const imx477_test_pattern_menu[] = { + "Disabled", + "Color Bars", + "Solid Color", + "Grey Color Bars", + "PN9" +}; + +static const int imx477_test_pattern_val[] = { + IMX477_TEST_PATTERN_DISABLE, + IMX477_TEST_PATTERN_COLOR_BARS, + IMX477_TEST_PATTERN_SOLID_COLOR, + IMX477_TEST_PATTERN_GREY_COLOR, + IMX477_TEST_PATTERN_PN9, +}; + +/* regulator supplies */ +static const char * const imx477_supply_name[] = { + /* Supplies can be enabled in any order */ + "VANA", /* Analog (2.8V) supply */ + "VDIG", /* Digital Core (1.05V) supply */ + "VDDL", /* IF (1.8V) supply */ +}; + +#define IMX477_NUM_SUPPLIES ARRAY_SIZE(imx477_supply_name) + +/* + * Initialisation delay between XCLR low->high and the moment when the sensor + * can start capture (i.e. can leave software standby), given by T7 in the + * datasheet is 8ms. This does include I2C setup time as well. + * + * Note, that delay between XCLR low->high and reading the CCI ID register (T6 + * in the datasheet) is much smaller - 600us. + */ +#define IMX477_XCLR_MIN_DELAY_US 8000 +#define IMX477_XCLR_DELAY_RANGE_US 1000 + +struct imx477 { + struct v4l2_subdev sd; + struct media_pad pad[NUM_PADS]; + + struct v4l2_mbus_framefmt fmt; + + struct clk *xclk; + u32 xclk_freq; + + struct gpio_desc *reset_gpio; + struct regulator_bulk_data supplies[IMX477_NUM_SUPPLIES]; + + struct v4l2_ctrl_handler ctrl_handler; + /* V4L2 Controls */ + struct v4l2_ctrl *pixel_rate; + struct v4l2_ctrl *exposure; + struct v4l2_ctrl *vflip; + struct v4l2_ctrl *hflip; + struct v4l2_ctrl *vblank; + struct v4l2_ctrl *hblank; + + /* Current mode */ + const struct imx477_mode *mode; + + /* + * Mutex for serialized access: + * Protect sensor module set pad format and start/stop streaming safely. + */ + struct mutex mutex; + + /* Streaming on/off */ + bool streaming; + + /* Rewrite common registers on stream on? */ + bool common_regs_written; +}; + +static inline struct imx477 *to_imx477(struct v4l2_subdev *_sd) +{ + return container_of(_sd, struct imx477, sd); +} + +static inline void get_mode_table(unsigned int code, + const struct imx477_mode **mode_list, + unsigned int *num_modes) +{ + switch (code) { + /* 12-bit */ + case MEDIA_BUS_FMT_SRGGB12_1X12: + case MEDIA_BUS_FMT_SGRBG12_1X12: + case MEDIA_BUS_FMT_SGBRG12_1X12: + case MEDIA_BUS_FMT_SBGGR12_1X12: + *mode_list = supported_modes_12bit; + *num_modes = ARRAY_SIZE(supported_modes_12bit); + break; + /* 10-bit */ + case MEDIA_BUS_FMT_SRGGB10_1X10: + case MEDIA_BUS_FMT_SGRBG10_1X10: + case MEDIA_BUS_FMT_SGBRG10_1X10: + case MEDIA_BUS_FMT_SBGGR10_1X10: + *mode_list = supported_modes_10bit; + *num_modes = ARRAY_SIZE(supported_modes_10bit); + break; + default: + *mode_list = NULL; + *num_modes = 0; + } +} + +/* Read registers up to 2 at a time */ +static int imx477_read_reg(struct imx477 *imx477, u16 reg, u32 len, u32 *val) +{ + struct i2c_client *client = v4l2_get_subdevdata(&imx477->sd); + struct i2c_msg msgs[2]; + u8 addr_buf[2] = { reg >> 8, reg & 0xff }; + u8 data_buf[4] = { 0, }; + int ret; + + if (len > 4) + return -EINVAL; + + /* Write register address */ + msgs[0].addr = client->addr; + msgs[0].flags = 0; + msgs[0].len = ARRAY_SIZE(addr_buf); + msgs[0].buf = addr_buf; + + /* Read data from register */ + msgs[1].addr = client->addr; + msgs[1].flags = I2C_M_RD; + msgs[1].len = len; + msgs[1].buf = &data_buf[4 - len]; + + ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs)); + if (ret != ARRAY_SIZE(msgs)) + return -EIO; + + *val = get_unaligned_be32(data_buf); + + return 0; +} + +/* Write registers up to 2 at a time */ +static int imx477_write_reg(struct imx477 *imx477, u16 reg, u32 len, u32 val) +{ + struct i2c_client *client = v4l2_get_subdevdata(&imx477->sd); + u8 buf[6]; + + if (len > 4) + return -EINVAL; + + put_unaligned_be16(reg, buf); + put_unaligned_be32(val << (8 * (4 - len)), buf + 2); + if (i2c_master_send(client, buf, len + 2) != len + 2) + return -EIO; + + return 0; +} + +/* Write a list of registers */ +static int imx477_write_regs(struct imx477 *imx477, + const struct imx477_reg *regs, u32 len) +{ + struct i2c_client *client = v4l2_get_subdevdata(&imx477->sd); + unsigned int i; + int ret; + + for (i = 0; i < len; i++) { + ret = imx477_write_reg(imx477, regs[i].address, 1, regs[i].val); + if (ret) { + dev_err_ratelimited(&client->dev, + "Failed to write reg 0x%4.4x. error = %d\n", + regs[i].address, ret); + + return ret; + } + } + + return 0; +} + +/* Get bayer order based on flip setting. */ +static u32 imx477_get_format_code(struct imx477 *imx477, u32 code) +{ + unsigned int i; + + lockdep_assert_held(&imx477->mutex); + + for (i = 0; i < ARRAY_SIZE(codes); i++) + if (codes[i] == code) + break; + + if (i >= ARRAY_SIZE(codes)) + i = 0; + + i = (i & ~3) | (imx477->vflip->val ? 2 : 0) | + (imx477->hflip->val ? 1 : 0); + + return codes[i]; +} + +static void imx477_set_default_format(struct imx477 *imx477) +{ + struct v4l2_mbus_framefmt *fmt = &imx477->fmt; + + /* Set default mode to max resolution */ + imx477->mode = &supported_modes_12bit[0]; + + fmt->code = MEDIA_BUS_FMT_SRGGB12_1X12; + fmt->colorspace = V4L2_COLORSPACE_SRGB; + fmt->ycbcr_enc = V4L2_MAP_YCBCR_ENC_DEFAULT(fmt->colorspace); + fmt->quantization = V4L2_MAP_QUANTIZATION_DEFAULT(true, + fmt->colorspace, + fmt->ycbcr_enc); + fmt->xfer_func = V4L2_MAP_XFER_FUNC_DEFAULT(fmt->colorspace); + fmt->width = imx477->mode->width; + fmt->height = imx477->mode->height; + fmt->field = V4L2_FIELD_NONE; +} + +static int imx477_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) +{ + struct imx477 *imx477 = to_imx477(sd); + struct v4l2_mbus_framefmt *try_fmt_img = + v4l2_subdev_get_try_format(sd, fh->pad, IMAGE_PAD); + struct v4l2_mbus_framefmt *try_fmt_meta = + v4l2_subdev_get_try_format(sd, fh->pad, METADATA_PAD); + struct v4l2_rect *try_crop; + + mutex_lock(&imx477->mutex); + + /* Initialize try_fmt for the image pad */ + try_fmt_img->width = supported_modes_12bit[0].width; + try_fmt_img->height = supported_modes_12bit[0].height; + try_fmt_img->code = imx477_get_format_code(imx477, + MEDIA_BUS_FMT_SRGGB12_1X12); + try_fmt_img->field = V4L2_FIELD_NONE; + + /* Initialize try_fmt for the embedded metadata pad */ + try_fmt_meta->width = IMX477_EMBEDDED_LINE_WIDTH; + try_fmt_meta->height = IMX477_NUM_EMBEDDED_LINES; + try_fmt_meta->code = MEDIA_BUS_FMT_SENSOR_DATA; + try_fmt_meta->field = V4L2_FIELD_NONE; + + /* Initialize try_crop */ + try_crop = v4l2_subdev_get_try_crop(sd, fh->pad, IMAGE_PAD); + try_crop->left = IMX477_PIXEL_ARRAY_LEFT; + try_crop->top = IMX477_PIXEL_ARRAY_TOP; + try_crop->width = IMX477_PIXEL_ARRAY_WIDTH; + try_crop->height = IMX477_PIXEL_ARRAY_HEIGHT; + + mutex_unlock(&imx477->mutex); + + return 0; +} + +static int imx477_set_ctrl(struct v4l2_ctrl *ctrl) +{ + struct imx477 *imx477 = + container_of(ctrl->handler, struct imx477, ctrl_handler); + struct i2c_client *client = v4l2_get_subdevdata(&imx477->sd); + int ret = 0; + + if (ctrl->id == V4L2_CID_VBLANK) { + int exposure_max, exposure_def; + + /* Update max exposure while meeting expected vblanking */ + exposure_max = imx477->mode->height + ctrl->val - + IMX477_EXPOSURE_OFFSET; + exposure_def = min(exposure_max, imx477->exposure->val); + __v4l2_ctrl_modify_range(imx477->exposure, + imx477->exposure->minimum, + exposure_max, imx477->exposure->step, + exposure_def); + } + + /* + * Applying V4L2 control value only happens + * when power is up for streaming + */ + if (pm_runtime_get_if_in_use(&client->dev) == 0) + return 0; + + switch (ctrl->id) { + case V4L2_CID_ANALOGUE_GAIN: + ret = imx477_write_reg(imx477, IMX477_REG_ANALOG_GAIN, + IMX477_REG_VALUE_16BIT, ctrl->val); + break; + case V4L2_CID_EXPOSURE: + ret = imx477_write_reg(imx477, IMX477_REG_EXPOSURE, + IMX477_REG_VALUE_16BIT, ctrl->val); + break; + case V4L2_CID_DIGITAL_GAIN: + ret = imx477_write_reg(imx477, IMX477_REG_DIGITAL_GAIN, + IMX477_REG_VALUE_16BIT, ctrl->val); + break; + case V4L2_CID_TEST_PATTERN: + ret = imx477_write_reg(imx477, IMX477_REG_TEST_PATTERN, + IMX477_REG_VALUE_16BIT, + imx477_test_pattern_val[ctrl->val]); + break; + case V4L2_CID_TEST_PATTERN_RED: + ret = imx477_write_reg(imx477, IMX477_REG_TEST_PATTERN_R, + IMX477_REG_VALUE_16BIT, ctrl->val); + break; + case V4L2_CID_TEST_PATTERN_GREENR: + ret = imx477_write_reg(imx477, IMX477_REG_TEST_PATTERN_GR, + IMX477_REG_VALUE_16BIT, ctrl->val); + break; + case V4L2_CID_TEST_PATTERN_BLUE: + ret = imx477_write_reg(imx477, IMX477_REG_TEST_PATTERN_B, + IMX477_REG_VALUE_16BIT, ctrl->val); + break; + case V4L2_CID_TEST_PATTERN_GREENB: + ret = imx477_write_reg(imx477, IMX477_REG_TEST_PATTERN_GB, + IMX477_REG_VALUE_16BIT, ctrl->val); + break; + case V4L2_CID_HFLIP: + case V4L2_CID_VFLIP: + ret = imx477_write_reg(imx477, IMX477_REG_ORIENTATION, 1, + imx477->hflip->val | + imx477->vflip->val << 1); + break; + case V4L2_CID_VBLANK: + ret = imx477_write_reg(imx477, IMX477_REG_FRAME_LENGTH, + IMX477_REG_VALUE_16BIT, + imx477->mode->height + ctrl->val); + break; + default: + dev_info(&client->dev, + "ctrl(id:0x%x,val:0x%x) is not handled\n", + ctrl->id, ctrl->val); + ret = -EINVAL; + break; + } + + pm_runtime_put(&client->dev); + + return ret; +} + +static const struct v4l2_ctrl_ops imx477_ctrl_ops = { + .s_ctrl = imx477_set_ctrl, +}; + +static int imx477_enum_mbus_code(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_mbus_code_enum *code) +{ + struct imx477 *imx477 = to_imx477(sd); + + if (code->pad >= NUM_PADS) + return -EINVAL; + + if (code->pad == IMAGE_PAD) { + if (code->index >= (ARRAY_SIZE(codes) / 4)) + return -EINVAL; + + code->code = imx477_get_format_code(imx477, + codes[code->index * 4]); + } else { + if (code->index > 0) + return -EINVAL; + + code->code = MEDIA_BUS_FMT_SENSOR_DATA; + } + + return 0; +} + +static int imx477_enum_frame_size(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_frame_size_enum *fse) +{ + struct imx477 *imx477 = to_imx477(sd); + + if (fse->pad >= NUM_PADS) + return -EINVAL; + + if (fse->pad == IMAGE_PAD) { + const struct imx477_mode *mode_list; + unsigned int num_modes; + + get_mode_table(fse->code, &mode_list, &num_modes); + + if (fse->index >= num_modes) + return -EINVAL; + + if (fse->code != imx477_get_format_code(imx477, fse->code)) + return -EINVAL; + + fse->min_width = mode_list[fse->index].width; + fse->max_width = fse->min_width; + fse->min_height = mode_list[fse->index].height; + fse->max_height = fse->min_height; + } else { + if (fse->code != MEDIA_BUS_FMT_SENSOR_DATA || fse->index > 0) + return -EINVAL; + + fse->min_width = IMX477_EMBEDDED_LINE_WIDTH; + fse->max_width = fse->min_width; + fse->min_height = IMX477_NUM_EMBEDDED_LINES; + fse->max_height = fse->min_height; + } + + return 0; +} + +static void imx477_reset_colorspace(struct v4l2_mbus_framefmt *fmt) +{ + fmt->colorspace = V4L2_COLORSPACE_SRGB; + fmt->ycbcr_enc = V4L2_MAP_YCBCR_ENC_DEFAULT(fmt->colorspace); + fmt->quantization = V4L2_MAP_QUANTIZATION_DEFAULT(true, + fmt->colorspace, + fmt->ycbcr_enc); + fmt->xfer_func = V4L2_MAP_XFER_FUNC_DEFAULT(fmt->colorspace); +} + +static void imx477_update_image_pad_format(struct imx477 *imx477, + const struct imx477_mode *mode, + struct v4l2_subdev_format *fmt) +{ + fmt->format.width = mode->width; + fmt->format.height = mode->height; + fmt->format.field = V4L2_FIELD_NONE; + imx477_reset_colorspace(&fmt->format); +} + +static void imx477_update_metadata_pad_format(struct v4l2_subdev_format *fmt) +{ + fmt->format.width = IMX477_EMBEDDED_LINE_WIDTH; + fmt->format.height = IMX477_NUM_EMBEDDED_LINES; + fmt->format.code = MEDIA_BUS_FMT_SENSOR_DATA; + fmt->format.field = V4L2_FIELD_NONE; +} + +static int imx477_get_pad_format(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_format *fmt) +{ + struct imx477 *imx477 = to_imx477(sd); + + if (fmt->pad >= NUM_PADS) + return -EINVAL; + + mutex_lock(&imx477->mutex); + + if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { + struct v4l2_mbus_framefmt *try_fmt = + v4l2_subdev_get_try_format(&imx477->sd, cfg, fmt->pad); + /* update the code which could change due to vflip or hflip: */ + try_fmt->code = fmt->pad == IMAGE_PAD ? + imx477_get_format_code(imx477, try_fmt->code) : + MEDIA_BUS_FMT_SENSOR_DATA; + fmt->format = *try_fmt; + } else { + if (fmt->pad == IMAGE_PAD) { + imx477_update_image_pad_format(imx477, imx477->mode, + fmt); + fmt->format.code = + imx477_get_format_code(imx477, imx477->fmt.code); + } else { + imx477_update_metadata_pad_format(fmt); + } + } + + mutex_unlock(&imx477->mutex); + return 0; +} + +static +unsigned int imx477_get_frame_length(const struct imx477_mode *mode, + const struct v4l2_fract *timeperframe) +{ + u64 frame_length; + + frame_length = (u64)timeperframe->numerator * IMX477_PIXEL_RATE; + do_div(frame_length, + (u64)timeperframe->denominator * mode->line_length_pix); + + if (WARN_ON(frame_length > IMX477_FRAME_LENGTH_MAX)) + frame_length = IMX477_FRAME_LENGTH_MAX; + + return max_t(unsigned int, frame_length, mode->height); +} + +static void imx477_set_framing_limits(struct imx477 *imx477) +{ + const struct imx477_mode *mode = imx477->mode; + unsigned int frm_length_min, frm_length_default; + unsigned int exposure_max, exposure_def, hblank; + + frm_length_min = imx477_get_frame_length(mode, &mode->timeperframe_min); + frm_length_default = + imx477_get_frame_length(mode, &mode->timeperframe_default); + + /* Update limits and set FPS to default */ + __v4l2_ctrl_modify_range(imx477->vblank, frm_length_min - mode->height, + IMX477_FRAME_LENGTH_MAX - mode->height, + 1, frm_length_default - mode->height); + __v4l2_ctrl_s_ctrl(imx477->vblank, frm_length_default - mode->height); + + /* Update max exposure while meeting expected vblanking */ + exposure_max = IMX477_FRAME_LENGTH_MAX - IMX477_EXPOSURE_OFFSET; + exposure_def = frm_length_default - mode->height - + IMX477_EXPOSURE_OFFSET; + __v4l2_ctrl_modify_range(imx477->exposure, imx477->exposure->minimum, + exposure_max, imx477->exposure->step, + exposure_def); + /* + * Currently PPL is fixed to the mode specified value, so hblank + * depends on mode->width only, and is not changeable in any + * way other than changing the mode. + */ + hblank = mode->line_length_pix - mode->width; + __v4l2_ctrl_modify_range(imx477->hblank, hblank, hblank, 1, hblank); +} + +static int imx477_set_pad_format(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_format *fmt) +{ + struct v4l2_mbus_framefmt *framefmt; + const struct imx477_mode *mode; + struct imx477 *imx477 = to_imx477(sd); + + if (fmt->pad >= NUM_PADS) + return -EINVAL; + + mutex_lock(&imx477->mutex); + + if (fmt->pad == IMAGE_PAD) { + const struct imx477_mode *mode_list; + unsigned int num_modes; + + /* Bayer order varies with flips */ + fmt->format.code = imx477_get_format_code(imx477, + fmt->format.code); + + get_mode_table(fmt->format.code, &mode_list, &num_modes); + + mode = v4l2_find_nearest_size(mode_list, + num_modes, + width, height, + fmt->format.width, + fmt->format.height); + imx477_update_image_pad_format(imx477, mode, fmt); + if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { + framefmt = v4l2_subdev_get_try_format(sd, cfg, + fmt->pad); + *framefmt = fmt->format; + } else { + imx477->mode = mode; + imx477_set_framing_limits(imx477); + } + } else { + if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { + framefmt = v4l2_subdev_get_try_format(sd, cfg, + fmt->pad); + *framefmt = fmt->format; + } else { + /* Only one embedded data mode is supported */ + imx477_update_metadata_pad_format(fmt); + } + } + + mutex_unlock(&imx477->mutex); + + return 0; +} + +static const struct v4l2_rect * +__imx477_get_pad_crop(struct imx477 *imx477, struct v4l2_subdev_pad_config *cfg, + unsigned int pad, enum v4l2_subdev_format_whence which) +{ + switch (which) { + case V4L2_SUBDEV_FORMAT_TRY: + return v4l2_subdev_get_try_crop(&imx477->sd, cfg, pad); + case V4L2_SUBDEV_FORMAT_ACTIVE: + return &imx477->mode->crop; + } + + return NULL; +} + +static int imx477_get_selection(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_selection *sel) +{ + switch (sel->target) { + case V4L2_SEL_TGT_CROP: { + struct imx477 *imx477 = to_imx477(sd); + + mutex_lock(&imx477->mutex); + sel->r = *__imx477_get_pad_crop(imx477, cfg, sel->pad, + sel->which); + mutex_unlock(&imx477->mutex); + + return 0; + } + + case V4L2_SEL_TGT_NATIVE_SIZE: + sel->r.left = 0; + sel->r.top = 0; + sel->r.width = IMX477_NATIVE_WIDTH; + sel->r.height = IMX477_NATIVE_HEIGHT; + + return 0; + + case V4L2_SEL_TGT_CROP_DEFAULT: + sel->r.left = IMX477_PIXEL_ARRAY_LEFT; + sel->r.top = IMX477_PIXEL_ARRAY_TOP; + sel->r.width = IMX477_PIXEL_ARRAY_WIDTH; + sel->r.height = IMX477_PIXEL_ARRAY_HEIGHT; + + return 0; + } + + return -EINVAL; +} + +/* Start streaming */ +static int imx477_start_streaming(struct imx477 *imx477) +{ + struct i2c_client *client = v4l2_get_subdevdata(&imx477->sd); + const struct imx477_reg_list *reg_list; + int ret; + + if (!imx477->common_regs_written) { + ret = imx477_write_regs(imx477, mode_common_regs, + ARRAY_SIZE(mode_common_regs)); + if (ret) { + dev_err(&client->dev, "%s failed to set common settings\n", + __func__); + return ret; + } + imx477->common_regs_written = true; + } + + /* Apply default values of current mode */ + reg_list = &imx477->mode->reg_list; + ret = imx477_write_regs(imx477, reg_list->regs, reg_list->num_of_regs); + if (ret) { + dev_err(&client->dev, "%s failed to set mode\n", __func__); + return ret; + } + + /* Apply customized values from user */ + ret = __v4l2_ctrl_handler_setup(imx477->sd.ctrl_handler); + if (ret) + return ret; + + /* set stream on register */ + return imx477_write_reg(imx477, IMX477_REG_MODE_SELECT, + IMX477_REG_VALUE_08BIT, IMX477_MODE_STREAMING); +} + +/* Stop streaming */ +static void imx477_stop_streaming(struct imx477 *imx477) +{ + struct i2c_client *client = v4l2_get_subdevdata(&imx477->sd); + int ret; + + /* set stream off register */ + ret = imx477_write_reg(imx477, IMX477_REG_MODE_SELECT, + IMX477_REG_VALUE_08BIT, IMX477_MODE_STANDBY); + if (ret) + dev_err(&client->dev, "%s failed to set stream\n", __func__); +} + +static int imx477_set_stream(struct v4l2_subdev *sd, int enable) +{ + struct imx477 *imx477 = to_imx477(sd); + struct i2c_client *client = v4l2_get_subdevdata(sd); + int ret = 0; + + mutex_lock(&imx477->mutex); + if (imx477->streaming == enable) { + mutex_unlock(&imx477->mutex); + return 0; + } + + if (enable) { + ret = pm_runtime_get_sync(&client->dev); + if (ret < 0) { + pm_runtime_put_noidle(&client->dev); + goto err_unlock; + } + + /* + * Apply default & customized values + * and then start streaming. + */ + ret = imx477_start_streaming(imx477); + if (ret) + goto err_rpm_put; + } else { + imx477_stop_streaming(imx477); + pm_runtime_put(&client->dev); + } + + imx477->streaming = enable; + + /* vflip and hflip cannot change during streaming */ + __v4l2_ctrl_grab(imx477->vflip, enable); + __v4l2_ctrl_grab(imx477->hflip, enable); + + mutex_unlock(&imx477->mutex); + + return ret; + +err_rpm_put: + pm_runtime_put(&client->dev); +err_unlock: + mutex_unlock(&imx477->mutex); + + return ret; +} + +/* Power/clock management functions */ +static int imx477_power_on(struct device *dev) +{ + struct i2c_client *client = to_i2c_client(dev); + struct v4l2_subdev *sd = i2c_get_clientdata(client); + struct imx477 *imx477 = to_imx477(sd); + int ret; + + ret = regulator_bulk_enable(IMX477_NUM_SUPPLIES, + imx477->supplies); + if (ret) { + dev_err(&client->dev, "%s: failed to enable regulators\n", + __func__); + return ret; + } + + ret = clk_prepare_enable(imx477->xclk); + if (ret) { + dev_err(&client->dev, "%s: failed to enable clock\n", + __func__); + goto reg_off; + } + + gpiod_set_value_cansleep(imx477->reset_gpio, 1); + usleep_range(IMX477_XCLR_MIN_DELAY_US, + IMX477_XCLR_MIN_DELAY_US + IMX477_XCLR_DELAY_RANGE_US); + + return 0; + +reg_off: + regulator_bulk_disable(IMX477_NUM_SUPPLIES, imx477->supplies); + return ret; +} + +static int imx477_power_off(struct device *dev) +{ + struct i2c_client *client = to_i2c_client(dev); + struct v4l2_subdev *sd = i2c_get_clientdata(client); + struct imx477 *imx477 = to_imx477(sd); + + gpiod_set_value_cansleep(imx477->reset_gpio, 0); + regulator_bulk_disable(IMX477_NUM_SUPPLIES, imx477->supplies); + clk_disable_unprepare(imx477->xclk); + + /* Force reprogramming of the common registers when powered up again. */ + imx477->common_regs_written = false; + + return 0; +} + +static int __maybe_unused imx477_suspend(struct device *dev) +{ + struct i2c_client *client = to_i2c_client(dev); + struct v4l2_subdev *sd = i2c_get_clientdata(client); + struct imx477 *imx477 = to_imx477(sd); + + if (imx477->streaming) + imx477_stop_streaming(imx477); + + return 0; +} + +static int __maybe_unused imx477_resume(struct device *dev) +{ + struct i2c_client *client = to_i2c_client(dev); + struct v4l2_subdev *sd = i2c_get_clientdata(client); + struct imx477 *imx477 = to_imx477(sd); + int ret; + + if (imx477->streaming) { + ret = imx477_start_streaming(imx477); + if (ret) + goto error; + } + + return 0; + +error: + imx477_stop_streaming(imx477); + imx477->streaming = 0; + return ret; +} + +static int imx477_get_regulators(struct imx477 *imx477) +{ + struct i2c_client *client = v4l2_get_subdevdata(&imx477->sd); + unsigned int i; + + for (i = 0; i < IMX477_NUM_SUPPLIES; i++) + imx477->supplies[i].supply = imx477_supply_name[i]; + + return devm_regulator_bulk_get(&client->dev, + IMX477_NUM_SUPPLIES, + imx477->supplies); +} + +/* Verify chip ID */ +static int imx477_identify_module(struct imx477 *imx477) +{ + struct i2c_client *client = v4l2_get_subdevdata(&imx477->sd); + int ret; + u32 val; + + ret = imx477_read_reg(imx477, IMX477_REG_CHIP_ID, + IMX477_REG_VALUE_16BIT, &val); + if (ret) { + dev_err(&client->dev, "failed to read chip id %x, with error %d\n", + IMX477_CHIP_ID, ret); + return ret; + } + + if (val != IMX477_CHIP_ID) { + dev_err(&client->dev, "chip id mismatch: %x!=%x\n", + IMX477_CHIP_ID, val); + ret = -EINVAL; + } + + return 0; +} + +static const struct v4l2_subdev_core_ops imx477_core_ops = { + .subscribe_event = v4l2_ctrl_subdev_subscribe_event, + .unsubscribe_event = v4l2_event_subdev_unsubscribe, +}; + +static const struct v4l2_subdev_video_ops imx477_video_ops = { + .s_stream = imx477_set_stream, +}; + +static const struct v4l2_subdev_pad_ops imx477_pad_ops = { + .enum_mbus_code = imx477_enum_mbus_code, + .get_fmt = imx477_get_pad_format, + .set_fmt = imx477_set_pad_format, + .get_selection = imx477_get_selection, + .enum_frame_size = imx477_enum_frame_size, +}; + +static const struct v4l2_subdev_ops imx477_subdev_ops = { + .core = &imx477_core_ops, + .video = &imx477_video_ops, + .pad = &imx477_pad_ops, +}; + +static const struct v4l2_subdev_internal_ops imx477_internal_ops = { + .open = imx477_open, +}; + +/* Initialize control handlers */ +static int imx477_init_controls(struct imx477 *imx477) +{ + struct v4l2_ctrl_handler *ctrl_hdlr; + struct i2c_client *client = v4l2_get_subdevdata(&imx477->sd); + unsigned int i; + int ret; + + ctrl_hdlr = &imx477->ctrl_handler; + ret = v4l2_ctrl_handler_init(ctrl_hdlr, 14); + if (ret) + return ret; + + mutex_init(&imx477->mutex); + ctrl_hdlr->lock = &imx477->mutex; + + /* By default, PIXEL_RATE is read only */ + imx477->pixel_rate = v4l2_ctrl_new_std(ctrl_hdlr, &imx477_ctrl_ops, + V4L2_CID_PIXEL_RATE, + IMX477_PIXEL_RATE, + IMX477_PIXEL_RATE, 1, + IMX477_PIXEL_RATE); + + /* + * Create the controls here, but mode specific limits are setup + * in the imx477_set_framing_limits() call below. + */ + imx477->vblank = v4l2_ctrl_new_std(ctrl_hdlr, &imx477_ctrl_ops, + V4L2_CID_VBLANK, 0, 0xffff, 1, 0); + imx477->hblank = v4l2_ctrl_new_std(ctrl_hdlr, &imx477_ctrl_ops, + V4L2_CID_HBLANK, 0, 0xffff, 1, 0); + + /* HBLANK is read-only for now, but does change with mode. */ + if (imx477->hblank) + imx477->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY; + + imx477->exposure = v4l2_ctrl_new_std(ctrl_hdlr, &imx477_ctrl_ops, + V4L2_CID_EXPOSURE, + IMX477_EXPOSURE_MIN, + IMX477_EXPOSURE_MAX, + IMX477_EXPOSURE_STEP, + IMX477_EXPOSURE_DEFAULT); + + v4l2_ctrl_new_std(ctrl_hdlr, &imx477_ctrl_ops, V4L2_CID_ANALOGUE_GAIN, + IMX477_ANA_GAIN_MIN, IMX477_ANA_GAIN_MAX, + IMX477_ANA_GAIN_STEP, IMX477_ANA_GAIN_DEFAULT); + + v4l2_ctrl_new_std(ctrl_hdlr, &imx477_ctrl_ops, V4L2_CID_DIGITAL_GAIN, + IMX477_DGTL_GAIN_MIN, IMX477_DGTL_GAIN_MAX, + IMX477_DGTL_GAIN_STEP, IMX477_DGTL_GAIN_DEFAULT); + + imx477->hflip = v4l2_ctrl_new_std(ctrl_hdlr, &imx477_ctrl_ops, + V4L2_CID_HFLIP, 0, 1, 1, 0); + if (imx477->hflip) + imx477->hflip->flags |= V4L2_CTRL_FLAG_MODIFY_LAYOUT; + + imx477->vflip = v4l2_ctrl_new_std(ctrl_hdlr, &imx477_ctrl_ops, + V4L2_CID_VFLIP, 0, 1, 1, 0); + if (imx477->vflip) + imx477->vflip->flags |= V4L2_CTRL_FLAG_MODIFY_LAYOUT; + + v4l2_ctrl_new_std_menu_items(ctrl_hdlr, &imx477_ctrl_ops, + V4L2_CID_TEST_PATTERN, + ARRAY_SIZE(imx477_test_pattern_menu) - 1, + 0, 0, imx477_test_pattern_menu); + for (i = 0; i < 4; i++) { + /* + * The assumption is that + * V4L2_CID_TEST_PATTERN_GREENR == V4L2_CID_TEST_PATTERN_RED + 1 + * V4L2_CID_TEST_PATTERN_BLUE == V4L2_CID_TEST_PATTERN_RED + 2 + * V4L2_CID_TEST_PATTERN_GREENB == V4L2_CID_TEST_PATTERN_RED + 3 + */ + v4l2_ctrl_new_std(ctrl_hdlr, &imx477_ctrl_ops, + V4L2_CID_TEST_PATTERN_RED + i, + IMX477_TEST_PATTERN_COLOUR_MIN, + IMX477_TEST_PATTERN_COLOUR_MAX, + IMX477_TEST_PATTERN_COLOUR_STEP, + IMX477_TEST_PATTERN_COLOUR_MAX); + /* The "Solid color" pattern is white by default */ + } + + if (ctrl_hdlr->error) { + ret = ctrl_hdlr->error; + dev_err(&client->dev, "%s control init failed (%d)\n", + __func__, ret); + goto error; + } + + imx477->sd.ctrl_handler = ctrl_hdlr; + + /* Setup exposure and frame/line length limits. */ + imx477_set_framing_limits(imx477); + + return 0; + +error: + v4l2_ctrl_handler_free(ctrl_hdlr); + mutex_destroy(&imx477->mutex); + + return ret; +} + +static void imx477_free_controls(struct imx477 *imx477) +{ + v4l2_ctrl_handler_free(imx477->sd.ctrl_handler); + mutex_destroy(&imx477->mutex); +} + +static int imx477_check_hwcfg(struct device *dev) +{ + struct fwnode_handle *endpoint; + struct v4l2_fwnode_endpoint ep_cfg = { + .bus_type = V4L2_MBUS_CSI2_DPHY + }; + int ret = -EINVAL; + + endpoint = fwnode_graph_get_next_endpoint(dev_fwnode(dev), NULL); + if (!endpoint) { + dev_err(dev, "endpoint node not found\n"); + return -EINVAL; + } + + if (v4l2_fwnode_endpoint_alloc_parse(endpoint, &ep_cfg)) { + dev_err(dev, "could not parse endpoint\n"); + goto error_out; + } + + /* Check the number of MIPI CSI2 data lanes */ + if (ep_cfg.bus.mipi_csi2.num_data_lanes != 2) { + dev_err(dev, "only 2 data lanes are currently supported\n"); + goto error_out; + } + + /* Check the link frequency set in device tree */ + if (!ep_cfg.nr_of_link_frequencies) { + dev_err(dev, "link-frequency property not found in DT\n"); + goto error_out; + } + + if (ep_cfg.nr_of_link_frequencies != 1 || + ep_cfg.link_frequencies[0] != IMX477_DEFAULT_LINK_FREQ) { + dev_err(dev, "Link frequency not supported: %lld\n", + ep_cfg.link_frequencies[0]); + goto error_out; + } + + ret = 0; + +error_out: + v4l2_fwnode_endpoint_free(&ep_cfg); + fwnode_handle_put(endpoint); + + return ret; +} + +static int imx477_probe(struct i2c_client *client) +{ + struct device *dev = &client->dev; + struct imx477 *imx477; + int ret; + + imx477 = devm_kzalloc(&client->dev, sizeof(*imx477), GFP_KERNEL); + if (!imx477) + return -ENOMEM; + + v4l2_i2c_subdev_init(&imx477->sd, client, &imx477_subdev_ops); + + /* Check the hardware configuration in device tree */ + if (imx477_check_hwcfg(dev)) + return -EINVAL; + + /* Get system clock (xclk) */ + imx477->xclk = devm_clk_get(dev, NULL); + if (IS_ERR(imx477->xclk)) { + dev_err(dev, "failed to get xclk\n"); + return PTR_ERR(imx477->xclk); + } + + imx477->xclk_freq = clk_get_rate(imx477->xclk); + if (imx477->xclk_freq != IMX477_XCLK_FREQ) { + dev_err(dev, "xclk frequency not supported: %d Hz\n", + imx477->xclk_freq); + return -EINVAL; + } + + ret = imx477_get_regulators(imx477); + if (ret) { + dev_err(dev, "failed to get regulators\n"); + return ret; + } + + /* Request optional enable pin */ + imx477->reset_gpio = devm_gpiod_get_optional(dev, "reset", + GPIOD_OUT_HIGH); + + /* + * The sensor must be powered for imx477_identify_module() + * to be able to read the CHIP_ID register + */ + ret = imx477_power_on(dev); + if (ret) + return ret; + + ret = imx477_identify_module(imx477); + if (ret) + goto error_power_off; + + /* Initialize default format */ + imx477_set_default_format(imx477); + + /* Enable runtime PM and turn off the device */ + pm_runtime_set_active(dev); + pm_runtime_enable(dev); + pm_runtime_idle(dev); + + /* This needs the pm runtime to be registered. */ + ret = imx477_init_controls(imx477); + if (ret) + goto error_power_off; + + /* Initialize subdev */ + imx477->sd.internal_ops = &imx477_internal_ops; + imx477->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE | + V4L2_SUBDEV_FL_HAS_EVENTS; + imx477->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR; + + /* Initialize source pads */ + imx477->pad[IMAGE_PAD].flags = MEDIA_PAD_FL_SOURCE; + imx477->pad[METADATA_PAD].flags = MEDIA_PAD_FL_SOURCE; + + ret = media_entity_pads_init(&imx477->sd.entity, NUM_PADS, imx477->pad); + if (ret) { + dev_err(dev, "failed to init entity pads: %d\n", ret); + goto error_handler_free; + } + + ret = v4l2_async_register_subdev_sensor_common(&imx477->sd); + if (ret < 0) { + dev_err(dev, "failed to register sensor sub-device: %d\n", ret); + goto error_media_entity; + } + + return 0; + +error_media_entity: + media_entity_cleanup(&imx477->sd.entity); + +error_handler_free: + imx477_free_controls(imx477); + +error_power_off: + pm_runtime_disable(&client->dev); + pm_runtime_set_suspended(&client->dev); + imx477_power_off(&client->dev); + + return ret; +} + +static int imx477_remove(struct i2c_client *client) +{ + struct v4l2_subdev *sd = i2c_get_clientdata(client); + struct imx477 *imx477 = to_imx477(sd); + + v4l2_async_unregister_subdev(sd); + media_entity_cleanup(&sd->entity); + imx477_free_controls(imx477); + + pm_runtime_disable(&client->dev); + if (!pm_runtime_status_suspended(&client->dev)) + imx477_power_off(&client->dev); + pm_runtime_set_suspended(&client->dev); + + return 0; +} + +static const struct of_device_id imx477_dt_ids[] = { + { .compatible = "sony,imx477" }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, imx477_dt_ids); + +static const struct dev_pm_ops imx477_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(imx477_suspend, imx477_resume) + SET_RUNTIME_PM_OPS(imx477_power_off, imx477_power_on, NULL) +}; + +static struct i2c_driver imx477_i2c_driver = { + .driver = { + .name = "imx477", + .of_match_table = imx477_dt_ids, + .pm = &imx477_pm_ops, + }, + .probe_new = imx477_probe, + .remove = imx477_remove, +}; + +module_i2c_driver(imx477_i2c_driver); + +MODULE_AUTHOR("Naushir Patuck "); +MODULE_DESCRIPTION("Sony IMX477 sensor driver"); +MODULE_LICENSE("GPL v2");