From eb3a99bc183e36922b9e8314620e4e64964bcaf0 Mon Sep 17 00:00:00 2001
From: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Date: Tue, 5 Oct 2021 20:51:18 +0200
Subject: bcm27xx: remove obsolete kernel 5.4

With the upgrade to kernel 5.10 per default the old version is no
longer required to be in tree.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
---
 ...dia-i2c-Add-driver-for-Sony-IMX219-sensor.patch | 1372 --------------------
 1 file changed, 1372 deletions(-)
 delete mode 100644 target/linux/bcm27xx/patches-5.4/950-0452-media-i2c-Add-driver-for-Sony-IMX219-sensor.patch

(limited to 'target/linux/bcm27xx/patches-5.4/950-0452-media-i2c-Add-driver-for-Sony-IMX219-sensor.patch')

diff --git a/target/linux/bcm27xx/patches-5.4/950-0452-media-i2c-Add-driver-for-Sony-IMX219-sensor.patch b/target/linux/bcm27xx/patches-5.4/950-0452-media-i2c-Add-driver-for-Sony-IMX219-sensor.patch
deleted file mode 100644
index 4ca345f2ad..0000000000
--- a/target/linux/bcm27xx/patches-5.4/950-0452-media-i2c-Add-driver-for-Sony-IMX219-sensor.patch
+++ /dev/null
@@ -1,1372 +0,0 @@
-From 5cd8c4efeb46ce1ef370dd3012a7951ba430b58f Mon Sep 17 00:00:00 2001
-From: Dave Stevenson <dave.stevenson@raspberrypi.com>
-Date: Mon, 20 Jan 2020 05:15:58 -0300
-Subject: [PATCH] media: i2c: Add driver for Sony IMX219 sensor
-
-Commit 1283b3b8f82b9004fbb94398cade5c8e797a2c8d upstream.
-(Currently on linux-media/master, queued for 5.7)
-
-Adds a driver for the 8MPix Sony IMX219 CSI2 sensor.
-Whilst the sensor supports 2 or 4 CSI2 data lanes, this driver
-currently only supports 2 lanes.
-8MPix @ 15fps, 1080P @ 30fps (cropped FOV), and 1640x1232 (2x2 binned)
-@ 30fps are currently supported.
-
-[Sakari Ailus: make imx219_check_hwcfg static]
-
-Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
-Signed-off-by: Andrey Konovalov <andrey.konovalov@linaro.org>
-Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
-Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
----
- drivers/media/i2c/Kconfig  |   11 +
- drivers/media/i2c/Makefile |    1 +
- drivers/media/i2c/imx219.c | 1312 ++++++++++++++++++++++++++++++++++++
- 3 files changed, 1324 insertions(+)
- create mode 100644 drivers/media/i2c/imx219.c
-
---- a/drivers/media/i2c/Kconfig
-+++ b/drivers/media/i2c/Kconfig
-@@ -578,6 +578,17 @@ config VIDEO_IMX214
- 	  To compile this driver as a module, choose M here: the
- 	  module will be called imx214.
- 
-+config VIDEO_IMX219
-+	tristate "Sony IMX219 sensor support"
-+	depends on I2C && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API
-+	select V4L2_FWNODE
-+	help
-+	  This is a Video4Linux2 sensor driver for the Sony
-+	  IMX219 camera.
-+
-+	  To compile this driver as a module, choose M here: the
-+	  module will be called imx219.
-+
- config VIDEO_IMX258
- 	tristate "Sony IMX258 sensor support"
- 	depends on I2C && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API
---- a/drivers/media/i2c/Makefile
-+++ b/drivers/media/i2c/Makefile
-@@ -111,6 +111,7 @@ obj-$(CONFIG_VIDEO_ML86V7667)	+= ml86v76
- obj-$(CONFIG_VIDEO_OV2659)	+= ov2659.o
- obj-$(CONFIG_VIDEO_TC358743)	+= tc358743.o
- obj-$(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_IMX319)	+= imx319.o
---- /dev/null
-+++ b/drivers/media/i2c/imx219.c
-@@ -0,0 +1,1312 @@
-+// SPDX-License-Identifier: GPL-2.0
-+/*
-+ * A V4L2 driver for Sony IMX219 cameras.
-+ * Copyright (C) 2019, Raspberry Pi (Trading) Ltd
-+ *
-+ * Based on Sony imx258 camera driver
-+ * Copyright (C) 2018 Intel Corporation
-+ *
-+ * DT / fwnode changes, and regulator / GPIO control taken from imx214 driver
-+ * Copyright 2018 Qtechnology A/S
-+ *
-+ * Flip handling taken from the Sony IMX319 driver.
-+ * Copyright (C) 2018 Intel Corporation
-+ *
-+ */
-+
-+#include <linux/clk.h>
-+#include <linux/clk-provider.h>
-+#include <linux/clkdev.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/regulator/consumer.h>
-+#include <media/v4l2-ctrls.h>
-+#include <media/v4l2-device.h>
-+#include <media/v4l2-event.h>
-+#include <media/v4l2-fwnode.h>
-+#include <media/v4l2-mediabus.h>
-+#include <asm/unaligned.h>
-+
-+#define IMX219_REG_VALUE_08BIT		1
-+#define IMX219_REG_VALUE_16BIT		2
-+
-+#define IMX219_REG_MODE_SELECT		0x0100
-+#define IMX219_MODE_STANDBY		0x00
-+#define IMX219_MODE_STREAMING		0x01
-+
-+/* Chip ID */
-+#define IMX219_REG_CHIP_ID		0x0000
-+#define IMX219_CHIP_ID			0x0219
-+
-+/* External clock frequency is 24.0M */
-+#define IMX219_XCLK_FREQ		24000000
-+
-+/* Pixel rate is fixed at 182.4M for all the modes */
-+#define IMX219_PIXEL_RATE		182400000
-+
-+#define IMX219_DEFAULT_LINK_FREQ	456000000
-+
-+/* V_TIMING internal */
-+#define IMX219_REG_VTS			0x0160
-+#define IMX219_VTS_15FPS		0x0dc6
-+#define IMX219_VTS_30FPS_1080P		0x06e3
-+#define IMX219_VTS_30FPS_BINNED		0x06e3
-+#define IMX219_VTS_MAX			0xffff
-+
-+#define IMX219_VBLANK_MIN		4
-+
-+/*Frame Length Line*/
-+#define IMX219_FLL_MIN			0x08a6
-+#define IMX219_FLL_MAX			0xffff
-+#define IMX219_FLL_STEP			1
-+#define IMX219_FLL_DEFAULT		0x0c98
-+
-+/* HBLANK control - read only */
-+#define IMX219_PPL_DEFAULT		3448
-+
-+/* Exposure control */
-+#define IMX219_REG_EXPOSURE		0x015a
-+#define IMX219_EXPOSURE_MIN		4
-+#define IMX219_EXPOSURE_STEP		1
-+#define IMX219_EXPOSURE_DEFAULT		0x640
-+#define IMX219_EXPOSURE_MAX		65535
-+
-+/* Analog gain control */
-+#define IMX219_REG_ANALOG_GAIN		0x0157
-+#define IMX219_ANA_GAIN_MIN		0
-+#define IMX219_ANA_GAIN_MAX		232
-+#define IMX219_ANA_GAIN_STEP		1
-+#define IMX219_ANA_GAIN_DEFAULT		0x0
-+
-+/* Digital gain control */
-+#define IMX219_REG_DIGITAL_GAIN		0x0158
-+#define IMX219_DGTL_GAIN_MIN		0x0100
-+#define IMX219_DGTL_GAIN_MAX		0x0fff
-+#define IMX219_DGTL_GAIN_DEFAULT	0x0100
-+#define IMX219_DGTL_GAIN_STEP		1
-+
-+#define IMX219_REG_ORIENTATION		0x0172
-+
-+/* Test Pattern Control */
-+#define IMX219_REG_TEST_PATTERN		0x0600
-+#define IMX219_TEST_PATTERN_DISABLE	0
-+#define IMX219_TEST_PATTERN_SOLID_COLOR	1
-+#define IMX219_TEST_PATTERN_COLOR_BARS	2
-+#define IMX219_TEST_PATTERN_GREY_COLOR	3
-+#define IMX219_TEST_PATTERN_PN9		4
-+
-+/* Test pattern colour components */
-+#define IMX219_REG_TESTP_RED		0x0602
-+#define IMX219_REG_TESTP_GREENR		0x0604
-+#define IMX219_REG_TESTP_BLUE		0x0606
-+#define IMX219_REG_TESTP_GREENB		0x0608
-+#define IMX219_TESTP_COLOUR_MIN		0
-+#define IMX219_TESTP_COLOUR_MAX		0x03ff
-+#define IMX219_TESTP_COLOUR_STEP	1
-+#define IMX219_TESTP_RED_DEFAULT	IMX219_TESTP_COLOUR_MAX
-+#define IMX219_TESTP_GREENR_DEFAULT	0
-+#define IMX219_TESTP_BLUE_DEFAULT	0
-+#define IMX219_TESTP_GREENB_DEFAULT	0
-+
-+struct imx219_reg {
-+	u16 address;
-+	u8 val;
-+};
-+
-+struct imx219_reg_list {
-+	unsigned int num_of_regs;
-+	const struct imx219_reg *regs;
-+};
-+
-+/* Mode : resolution and related config&values */
-+struct imx219_mode {
-+	/* Frame width */
-+	unsigned int width;
-+	/* Frame height */
-+	unsigned int height;
-+
-+	/* V-timing */
-+	unsigned int vts_def;
-+
-+	/* Default register values */
-+	struct imx219_reg_list reg_list;
-+};
-+
-+/*
-+ * Register sets lifted off the i2C interface from the Raspberry Pi firmware
-+ * driver.
-+ * 3280x2464 = mode 2, 1920x1080 = mode 1, and 1640x1232 = mode 4.
-+ */
-+static const struct imx219_reg mode_3280x2464_regs[] = {
-+	{0x0100, 0x00},
-+	{0x30eb, 0x0c},
-+	{0x30eb, 0x05},
-+	{0x300a, 0xff},
-+	{0x300b, 0xff},
-+	{0x30eb, 0x05},
-+	{0x30eb, 0x09},
-+	{0x0114, 0x01},
-+	{0x0128, 0x00},
-+	{0x012a, 0x18},
-+	{0x012b, 0x00},
-+	{0x0164, 0x00},
-+	{0x0165, 0x00},
-+	{0x0166, 0x0c},
-+	{0x0167, 0xcf},
-+	{0x0168, 0x00},
-+	{0x0169, 0x00},
-+	{0x016a, 0x09},
-+	{0x016b, 0x9f},
-+	{0x016c, 0x0c},
-+	{0x016d, 0xd0},
-+	{0x016e, 0x09},
-+	{0x016f, 0xa0},
-+	{0x0170, 0x01},
-+	{0x0171, 0x01},
-+	{0x0174, 0x00},
-+	{0x0175, 0x00},
-+	{0x018c, 0x0a},
-+	{0x018d, 0x0a},
-+	{0x0301, 0x05},
-+	{0x0303, 0x01},
-+	{0x0304, 0x03},
-+	{0x0305, 0x03},
-+	{0x0306, 0x00},
-+	{0x0307, 0x39},
-+	{0x0309, 0x0a},
-+	{0x030b, 0x01},
-+	{0x030c, 0x00},
-+	{0x030d, 0x72},
-+	{0x0624, 0x0c},
-+	{0x0625, 0xd0},
-+	{0x0626, 0x09},
-+	{0x0627, 0xa0},
-+	{0x455e, 0x00},
-+	{0x471e, 0x4b},
-+	{0x4767, 0x0f},
-+	{0x4750, 0x14},
-+	{0x4540, 0x00},
-+	{0x47b4, 0x14},
-+	{0x4713, 0x30},
-+	{0x478b, 0x10},
-+	{0x478f, 0x10},
-+	{0x4793, 0x10},
-+	{0x4797, 0x0e},
-+	{0x479b, 0x0e},
-+	{0x0162, 0x0d},
-+	{0x0163, 0x78},
-+};
-+
-+static const struct imx219_reg mode_1920_1080_regs[] = {
-+	{0x0100, 0x00},
-+	{0x30eb, 0x05},
-+	{0x30eb, 0x0c},
-+	{0x300a, 0xff},
-+	{0x300b, 0xff},
-+	{0x30eb, 0x05},
-+	{0x30eb, 0x09},
-+	{0x0114, 0x01},
-+	{0x0128, 0x00},
-+	{0x012a, 0x18},
-+	{0x012b, 0x00},
-+	{0x0162, 0x0d},
-+	{0x0163, 0x78},
-+	{0x0164, 0x02},
-+	{0x0165, 0xa8},
-+	{0x0166, 0x0a},
-+	{0x0167, 0x27},
-+	{0x0168, 0x02},
-+	{0x0169, 0xb4},
-+	{0x016a, 0x06},
-+	{0x016b, 0xeb},
-+	{0x016c, 0x07},
-+	{0x016d, 0x80},
-+	{0x016e, 0x04},
-+	{0x016f, 0x38},
-+	{0x0170, 0x01},
-+	{0x0171, 0x01},
-+	{0x0174, 0x00},
-+	{0x0175, 0x00},
-+	{0x018c, 0x0a},
-+	{0x018d, 0x0a},
-+	{0x0301, 0x05},
-+	{0x0303, 0x01},
-+	{0x0304, 0x03},
-+	{0x0305, 0x03},
-+	{0x0306, 0x00},
-+	{0x0307, 0x39},
-+	{0x0309, 0x0a},
-+	{0x030b, 0x01},
-+	{0x030c, 0x00},
-+	{0x030d, 0x72},
-+	{0x0624, 0x07},
-+	{0x0625, 0x80},
-+	{0x0626, 0x04},
-+	{0x0627, 0x38},
-+	{0x455e, 0x00},
-+	{0x471e, 0x4b},
-+	{0x4767, 0x0f},
-+	{0x4750, 0x14},
-+	{0x4540, 0x00},
-+	{0x47b4, 0x14},
-+	{0x4713, 0x30},
-+	{0x478b, 0x10},
-+	{0x478f, 0x10},
-+	{0x4793, 0x10},
-+	{0x4797, 0x0e},
-+	{0x479b, 0x0e},
-+	{0x0162, 0x0d},
-+	{0x0163, 0x78},
-+};
-+
-+static const struct imx219_reg mode_1640_1232_regs[] = {
-+	{0x0100, 0x00},
-+	{0x30eb, 0x0c},
-+	{0x30eb, 0x05},
-+	{0x300a, 0xff},
-+	{0x300b, 0xff},
-+	{0x30eb, 0x05},
-+	{0x30eb, 0x09},
-+	{0x0114, 0x01},
-+	{0x0128, 0x00},
-+	{0x012a, 0x18},
-+	{0x012b, 0x00},
-+	{0x0164, 0x00},
-+	{0x0165, 0x00},
-+	{0x0166, 0x0c},
-+	{0x0167, 0xcf},
-+	{0x0168, 0x00},
-+	{0x0169, 0x00},
-+	{0x016a, 0x09},
-+	{0x016b, 0x9f},
-+	{0x016c, 0x06},
-+	{0x016d, 0x68},
-+	{0x016e, 0x04},
-+	{0x016f, 0xd0},
-+	{0x0170, 0x01},
-+	{0x0171, 0x01},
-+	{0x0174, 0x01},
-+	{0x0175, 0x01},
-+	{0x018c, 0x0a},
-+	{0x018d, 0x0a},
-+	{0x0301, 0x05},
-+	{0x0303, 0x01},
-+	{0x0304, 0x03},
-+	{0x0305, 0x03},
-+	{0x0306, 0x00},
-+	{0x0307, 0x39},
-+	{0x0309, 0x0a},
-+	{0x030b, 0x01},
-+	{0x030c, 0x00},
-+	{0x030d, 0x72},
-+	{0x0624, 0x06},
-+	{0x0625, 0x68},
-+	{0x0626, 0x04},
-+	{0x0627, 0xd0},
-+	{0x455e, 0x00},
-+	{0x471e, 0x4b},
-+	{0x4767, 0x0f},
-+	{0x4750, 0x14},
-+	{0x4540, 0x00},
-+	{0x47b4, 0x14},
-+	{0x4713, 0x30},
-+	{0x478b, 0x10},
-+	{0x478f, 0x10},
-+	{0x4793, 0x10},
-+	{0x4797, 0x0e},
-+	{0x479b, 0x0e},
-+	{0x0162, 0x0d},
-+	{0x0163, 0x78},
-+};
-+
-+static const char * const imx219_test_pattern_menu[] = {
-+	"Disabled",
-+	"Color Bars",
-+	"Solid Color",
-+	"Grey Color Bars",
-+	"PN9"
-+};
-+
-+static const int imx219_test_pattern_val[] = {
-+	IMX219_TEST_PATTERN_DISABLE,
-+	IMX219_TEST_PATTERN_COLOR_BARS,
-+	IMX219_TEST_PATTERN_SOLID_COLOR,
-+	IMX219_TEST_PATTERN_GREY_COLOR,
-+	IMX219_TEST_PATTERN_PN9,
-+};
-+
-+/* regulator supplies */
-+static const char * const imx219_supply_name[] = {
-+	/* Supplies can be enabled in any order */
-+	"VANA",  /* Analog (2.8V) supply */
-+	"VDIG",  /* Digital Core (1.8V) supply */
-+	"VDDL",  /* IF (1.2V) supply */
-+};
-+
-+#define IMX219_NUM_SUPPLIES ARRAY_SIZE(imx219_supply_name)
-+
-+/*
-+ * Initialisation delay between XCLR low->high and the moment when the sensor
-+ * can start capture (i.e. can leave software stanby) must be not less than:
-+ *   t4 + max(t5, t6 + <time to initialize the sensor register over I2C>)
-+ * where
-+ *   t4 is fixed, and is max 200uS,
-+ *   t5 is fixed, and is 6000uS,
-+ *   t6 depends on the sensor external clock, and is max 32000 clock periods.
-+ * As per sensor datasheet, the external clock must be from 6MHz to 27MHz.
-+ * So for any acceptable external clock t6 is always within the range of
-+ * 1185 to 5333 uS, and is always less than t5.
-+ * For this reason this is always safe to wait (t4 + t5) = 6200 uS, then
-+ * initialize the sensor over I2C, and then exit the software standby.
-+ *
-+ * This start-up time can be optimized a bit more, if we start the writes
-+ * over I2C after (t4+t6), but before (t4+t5) expires. But then sensor
-+ * initialization over I2C may complete before (t4+t5) expires, and we must
-+ * ensure that capture is not started before (t4+t5).
-+ *
-+ * This delay doesn't account for the power supply startup time. If needed,
-+ * this should be taken care of via the regulator framework. E.g. in the
-+ * case of DT for regulator-fixed one should define the startup-delay-us
-+ * property.
-+ */
-+#define IMX219_XCLR_MIN_DELAY_US	6200
-+#define IMX219_XCLR_DELAY_RANGE_US	1000
-+
-+/* Mode configs */
-+static const struct imx219_mode supported_modes[] = {
-+	{
-+		/* 8MPix 15fps mode */
-+		.width = 3280,
-+		.height = 2464,
-+		.vts_def = IMX219_VTS_15FPS,
-+		.reg_list = {
-+			.num_of_regs = ARRAY_SIZE(mode_3280x2464_regs),
-+			.regs = mode_3280x2464_regs,
-+		},
-+	},
-+	{
-+		/* 1080P 30fps cropped */
-+		.width = 1920,
-+		.height = 1080,
-+		.vts_def = IMX219_VTS_30FPS_1080P,
-+		.reg_list = {
-+			.num_of_regs = ARRAY_SIZE(mode_1920_1080_regs),
-+			.regs = mode_1920_1080_regs,
-+		},
-+	},
-+	{
-+		/* 2x2 binned 30fps mode */
-+		.width = 1640,
-+		.height = 1232,
-+		.vts_def = IMX219_VTS_30FPS_BINNED,
-+		.reg_list = {
-+			.num_of_regs = ARRAY_SIZE(mode_1640_1232_regs),
-+			.regs = mode_1640_1232_regs,
-+		},
-+	},
-+};
-+
-+struct imx219 {
-+	struct v4l2_subdev sd;
-+	struct media_pad pad;
-+
-+	struct clk *xclk; /* system clock to IMX219 */
-+	u32 xclk_freq;
-+
-+	struct gpio_desc *reset_gpio;
-+	struct regulator_bulk_data supplies[IMX219_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 imx219_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;
-+};
-+
-+static inline struct imx219 *to_imx219(struct v4l2_subdev *_sd)
-+{
-+	return container_of(_sd, struct imx219, sd);
-+}
-+
-+/* Read registers up to 2 at a time */
-+static int imx219_read_reg(struct imx219 *imx219, u16 reg, u32 len, u32 *val)
-+{
-+	struct i2c_client *client = v4l2_get_subdevdata(&imx219->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 imx219_write_reg(struct imx219 *imx219, u16 reg, u32 len, u32 val)
-+{
-+	struct i2c_client *client = v4l2_get_subdevdata(&imx219->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 imx219_write_regs(struct imx219 *imx219,
-+			     const struct imx219_reg *regs, u32 len)
-+{
-+	struct i2c_client *client = v4l2_get_subdevdata(&imx219->sd);
-+	unsigned int i;
-+	int ret;
-+
-+	for (i = 0; i < len; i++) {
-+		ret = imx219_write_reg(imx219, 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 imx219_get_format_code(struct imx219 *imx219)
-+{
-+	/*
-+	 * Only one bayer order is supported.
-+	 * It depends on the flip settings.
-+	 */
-+	static const u32 codes[2][2] = {
-+		{ MEDIA_BUS_FMT_SRGGB10_1X10, MEDIA_BUS_FMT_SGRBG10_1X10, },
-+		{ MEDIA_BUS_FMT_SGBRG10_1X10, MEDIA_BUS_FMT_SBGGR10_1X10, },
-+	};
-+
-+	lockdep_assert_held(&imx219->mutex);
-+	return codes[imx219->vflip->val][imx219->hflip->val];
-+}
-+
-+static int imx219_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
-+{
-+	struct imx219 *imx219 = to_imx219(sd);
-+	struct v4l2_mbus_framefmt *try_fmt =
-+		v4l2_subdev_get_try_format(sd, fh->pad, 0);
-+
-+	mutex_lock(&imx219->mutex);
-+
-+	/* Initialize try_fmt */
-+	try_fmt->width = supported_modes[0].width;
-+	try_fmt->height = supported_modes[0].height;
-+	try_fmt->code = imx219_get_format_code(imx219);
-+	try_fmt->field = V4L2_FIELD_NONE;
-+
-+	mutex_unlock(&imx219->mutex);
-+
-+	return 0;
-+}
-+
-+static int imx219_set_ctrl(struct v4l2_ctrl *ctrl)
-+{
-+	struct imx219 *imx219 =
-+		container_of(ctrl->handler, struct imx219, ctrl_handler);
-+	struct i2c_client *client = v4l2_get_subdevdata(&imx219->sd);
-+	int ret;
-+
-+	if (ctrl->id == V4L2_CID_VBLANK) {
-+		int exposure_max, exposure_def;
-+
-+		/* Update max exposure while meeting expected vblanking */
-+		exposure_max = imx219->mode->height + ctrl->val - 4;
-+		exposure_def = (exposure_max < IMX219_EXPOSURE_DEFAULT) ?
-+			exposure_max : IMX219_EXPOSURE_DEFAULT;
-+		__v4l2_ctrl_modify_range(imx219->exposure,
-+					 imx219->exposure->minimum,
-+					 exposure_max, imx219->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 = imx219_write_reg(imx219, IMX219_REG_ANALOG_GAIN,
-+				       IMX219_REG_VALUE_08BIT, ctrl->val);
-+		break;
-+	case V4L2_CID_EXPOSURE:
-+		ret = imx219_write_reg(imx219, IMX219_REG_EXPOSURE,
-+				       IMX219_REG_VALUE_16BIT, ctrl->val);
-+		break;
-+	case V4L2_CID_DIGITAL_GAIN:
-+		ret = imx219_write_reg(imx219, IMX219_REG_DIGITAL_GAIN,
-+				       IMX219_REG_VALUE_16BIT, ctrl->val);
-+		break;
-+	case V4L2_CID_TEST_PATTERN:
-+		ret = imx219_write_reg(imx219, IMX219_REG_TEST_PATTERN,
-+				       IMX219_REG_VALUE_16BIT,
-+				       imx219_test_pattern_val[ctrl->val]);
-+		break;
-+	case V4L2_CID_HFLIP:
-+	case V4L2_CID_VFLIP:
-+		ret = imx219_write_reg(imx219, IMX219_REG_ORIENTATION, 1,
-+				       imx219->hflip->val |
-+				       imx219->vflip->val << 1);
-+		break;
-+	case V4L2_CID_VBLANK:
-+		ret = imx219_write_reg(imx219, IMX219_REG_VTS,
-+				       IMX219_REG_VALUE_16BIT,
-+				       imx219->mode->height + ctrl->val);
-+		break;
-+	case V4L2_CID_TEST_PATTERN_RED:
-+		ret = imx219_write_reg(imx219, IMX219_REG_TESTP_RED,
-+				       IMX219_REG_VALUE_16BIT, ctrl->val);
-+		break;
-+	case V4L2_CID_TEST_PATTERN_GREENR:
-+		ret = imx219_write_reg(imx219, IMX219_REG_TESTP_GREENR,
-+				       IMX219_REG_VALUE_16BIT, ctrl->val);
-+		break;
-+	case V4L2_CID_TEST_PATTERN_BLUE:
-+		ret = imx219_write_reg(imx219, IMX219_REG_TESTP_BLUE,
-+				       IMX219_REG_VALUE_16BIT, ctrl->val);
-+		break;
-+	case V4L2_CID_TEST_PATTERN_GREENB:
-+		ret = imx219_write_reg(imx219, IMX219_REG_TESTP_GREENB,
-+				       IMX219_REG_VALUE_16BIT, 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 imx219_ctrl_ops = {
-+	.s_ctrl = imx219_set_ctrl,
-+};
-+
-+static int imx219_enum_mbus_code(struct v4l2_subdev *sd,
-+				 struct v4l2_subdev_pad_config *cfg,
-+				 struct v4l2_subdev_mbus_code_enum *code)
-+{
-+	struct imx219 *imx219 = to_imx219(sd);
-+
-+	/*
-+	 * Only one bayer order is supported (though it depends on the flip
-+	 * settings)
-+	 */
-+	if (code->index > 0)
-+		return -EINVAL;
-+
-+	code->code = imx219_get_format_code(imx219);
-+
-+	return 0;
-+}
-+
-+static int imx219_enum_frame_size(struct v4l2_subdev *sd,
-+				  struct v4l2_subdev_pad_config *cfg,
-+				  struct v4l2_subdev_frame_size_enum *fse)
-+{
-+	struct imx219 *imx219 = to_imx219(sd);
-+
-+	if (fse->index >= ARRAY_SIZE(supported_modes))
-+		return -EINVAL;
-+
-+	if (fse->code != imx219_get_format_code(imx219))
-+		return -EINVAL;
-+
-+	fse->min_width = supported_modes[fse->index].width;
-+	fse->max_width = fse->min_width;
-+	fse->min_height = supported_modes[fse->index].height;
-+	fse->max_height = fse->min_height;
-+
-+	return 0;
-+}
-+
-+static void imx219_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 imx219_update_pad_format(struct imx219 *imx219,
-+				     const struct imx219_mode *mode,
-+				     struct v4l2_subdev_format *fmt)
-+{
-+	fmt->format.width = mode->width;
-+	fmt->format.height = mode->height;
-+	fmt->format.code = imx219_get_format_code(imx219);
-+	fmt->format.field = V4L2_FIELD_NONE;
-+
-+	imx219_reset_colorspace(&fmt->format);
-+}
-+
-+static int __imx219_get_pad_format(struct imx219 *imx219,
-+				   struct v4l2_subdev_pad_config *cfg,
-+				   struct v4l2_subdev_format *fmt)
-+{
-+	if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
-+		struct v4l2_mbus_framefmt *try_fmt =
-+			v4l2_subdev_get_try_format(&imx219->sd, cfg, fmt->pad);
-+		/* update the code which could change due to vflip or hflip: */
-+		try_fmt->code = imx219_get_format_code(imx219);
-+		fmt->format = *try_fmt;
-+	} else {
-+		imx219_update_pad_format(imx219, imx219->mode, fmt);
-+	}
-+
-+	return 0;
-+}
-+
-+static int imx219_get_pad_format(struct v4l2_subdev *sd,
-+				 struct v4l2_subdev_pad_config *cfg,
-+				 struct v4l2_subdev_format *fmt)
-+{
-+	struct imx219 *imx219 = to_imx219(sd);
-+	int ret;
-+
-+	mutex_lock(&imx219->mutex);
-+	ret = __imx219_get_pad_format(imx219, cfg, fmt);
-+	mutex_unlock(&imx219->mutex);
-+
-+	return ret;
-+}
-+
-+static int imx219_set_pad_format(struct v4l2_subdev *sd,
-+				 struct v4l2_subdev_pad_config *cfg,
-+				 struct v4l2_subdev_format *fmt)
-+{
-+	struct imx219 *imx219 = to_imx219(sd);
-+	const struct imx219_mode *mode;
-+	struct v4l2_mbus_framefmt *framefmt;
-+	int exposure_max, exposure_def, hblank;
-+
-+	mutex_lock(&imx219->mutex);
-+
-+	/* Bayer order varies with flips */
-+	fmt->format.code = imx219_get_format_code(imx219);
-+
-+	mode = v4l2_find_nearest_size(supported_modes,
-+				      ARRAY_SIZE(supported_modes),
-+				      width, height,
-+				      fmt->format.width, fmt->format.height);
-+	imx219_update_pad_format(imx219, mode, fmt);
-+	if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
-+		framefmt = v4l2_subdev_get_try_format(sd, cfg, fmt->pad);
-+		*framefmt = fmt->format;
-+	} else if (imx219->mode != mode) {
-+		imx219->mode = mode;
-+		/* Update limits and set FPS to default */
-+		__v4l2_ctrl_modify_range(imx219->vblank, IMX219_VBLANK_MIN,
-+					 IMX219_VTS_MAX - mode->height, 1,
-+					 mode->vts_def - mode->height);
-+		__v4l2_ctrl_s_ctrl(imx219->vblank,
-+				   mode->vts_def - mode->height);
-+		/* Update max exposure while meeting expected vblanking */
-+		exposure_max = mode->vts_def - 4;
-+		exposure_def = (exposure_max < IMX219_EXPOSURE_DEFAULT) ?
-+			exposure_max : IMX219_EXPOSURE_DEFAULT;
-+		__v4l2_ctrl_modify_range(imx219->exposure,
-+					 imx219->exposure->minimum,
-+					 exposure_max, imx219->exposure->step,
-+					 exposure_def);
-+		/*
-+		 * Currently PPL is fixed to IMX219_PPL_DEFAULT, so hblank
-+		 * depends on mode->width only, and is not changeble in any
-+		 * way other than changing the mode.
-+		 */
-+		hblank = IMX219_PPL_DEFAULT - mode->width;
-+		__v4l2_ctrl_modify_range(imx219->hblank, hblank, hblank, 1,
-+					 hblank);
-+	}
-+
-+	mutex_unlock(&imx219->mutex);
-+
-+	return 0;
-+}
-+
-+static int imx219_start_streaming(struct imx219 *imx219)
-+{
-+	struct i2c_client *client = v4l2_get_subdevdata(&imx219->sd);
-+	const struct imx219_reg_list *reg_list;
-+	int ret;
-+
-+	/* Apply default values of current mode */
-+	reg_list = &imx219->mode->reg_list;
-+	ret = imx219_write_regs(imx219, 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(imx219->sd.ctrl_handler);
-+	if (ret)
-+		return ret;
-+
-+	/* set stream on register */
-+	return imx219_write_reg(imx219, IMX219_REG_MODE_SELECT,
-+				IMX219_REG_VALUE_08BIT, IMX219_MODE_STREAMING);
-+}
-+
-+static void imx219_stop_streaming(struct imx219 *imx219)
-+{
-+	struct i2c_client *client = v4l2_get_subdevdata(&imx219->sd);
-+	int ret;
-+
-+	/* set stream off register */
-+	ret = imx219_write_reg(imx219, IMX219_REG_MODE_SELECT,
-+			       IMX219_REG_VALUE_08BIT, IMX219_MODE_STANDBY);
-+	if (ret)
-+		dev_err(&client->dev, "%s failed to set stream\n", __func__);
-+}
-+
-+static int imx219_set_stream(struct v4l2_subdev *sd, int enable)
-+{
-+	struct imx219 *imx219 = to_imx219(sd);
-+	struct i2c_client *client = v4l2_get_subdevdata(sd);
-+	int ret = 0;
-+
-+	mutex_lock(&imx219->mutex);
-+	if (imx219->streaming == enable) {
-+		mutex_unlock(&imx219->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 = imx219_start_streaming(imx219);
-+		if (ret)
-+			goto err_rpm_put;
-+	} else {
-+		imx219_stop_streaming(imx219);
-+		pm_runtime_put(&client->dev);
-+	}
-+
-+	imx219->streaming = enable;
-+
-+	/* vflip and hflip cannot change during streaming */
-+	__v4l2_ctrl_grab(imx219->vflip, enable);
-+	__v4l2_ctrl_grab(imx219->hflip, enable);
-+
-+	mutex_unlock(&imx219->mutex);
-+
-+	return ret;
-+
-+err_rpm_put:
-+	pm_runtime_put(&client->dev);
-+err_unlock:
-+	mutex_unlock(&imx219->mutex);
-+
-+	return ret;
-+}
-+
-+/* Power/clock management functions */
-+static int imx219_power_on(struct device *dev)
-+{
-+	struct i2c_client *client = to_i2c_client(dev);
-+	struct v4l2_subdev *sd = i2c_get_clientdata(client);
-+	struct imx219 *imx219 = to_imx219(sd);
-+	int ret;
-+
-+	ret = regulator_bulk_enable(IMX219_NUM_SUPPLIES,
-+				    imx219->supplies);
-+	if (ret) {
-+		dev_err(&client->dev, "%s: failed to enable regulators\n",
-+			__func__);
-+		return ret;
-+	}
-+
-+	ret = clk_prepare_enable(imx219->xclk);
-+	if (ret) {
-+		dev_err(&client->dev, "%s: failed to enable clock\n",
-+			__func__);
-+		goto reg_off;
-+	}
-+
-+	gpiod_set_value_cansleep(imx219->reset_gpio, 1);
-+	usleep_range(IMX219_XCLR_MIN_DELAY_US,
-+		     IMX219_XCLR_MIN_DELAY_US + IMX219_XCLR_DELAY_RANGE_US);
-+
-+	return 0;
-+
-+reg_off:
-+	regulator_bulk_disable(IMX219_NUM_SUPPLIES, imx219->supplies);
-+
-+	return ret;
-+}
-+
-+static int imx219_power_off(struct device *dev)
-+{
-+	struct i2c_client *client = to_i2c_client(dev);
-+	struct v4l2_subdev *sd = i2c_get_clientdata(client);
-+	struct imx219 *imx219 = to_imx219(sd);
-+
-+	gpiod_set_value_cansleep(imx219->reset_gpio, 0);
-+	regulator_bulk_disable(IMX219_NUM_SUPPLIES, imx219->supplies);
-+	clk_disable_unprepare(imx219->xclk);
-+
-+	return 0;
-+}
-+
-+static int __maybe_unused imx219_suspend(struct device *dev)
-+{
-+	struct i2c_client *client = to_i2c_client(dev);
-+	struct v4l2_subdev *sd = i2c_get_clientdata(client);
-+	struct imx219 *imx219 = to_imx219(sd);
-+
-+	if (imx219->streaming)
-+		imx219_stop_streaming(imx219);
-+
-+	return 0;
-+}
-+
-+static int __maybe_unused imx219_resume(struct device *dev)
-+{
-+	struct i2c_client *client = to_i2c_client(dev);
-+	struct v4l2_subdev *sd = i2c_get_clientdata(client);
-+	struct imx219 *imx219 = to_imx219(sd);
-+	int ret;
-+
-+	if (imx219->streaming) {
-+		ret = imx219_start_streaming(imx219);
-+		if (ret)
-+			goto error;
-+	}
-+
-+	return 0;
-+
-+error:
-+	imx219_stop_streaming(imx219);
-+	imx219->streaming = 0;
-+
-+	return ret;
-+}
-+
-+static int imx219_get_regulators(struct imx219 *imx219)
-+{
-+	struct i2c_client *client = v4l2_get_subdevdata(&imx219->sd);
-+	unsigned int i;
-+
-+	for (i = 0; i < IMX219_NUM_SUPPLIES; i++)
-+		imx219->supplies[i].supply = imx219_supply_name[i];
-+
-+	return devm_regulator_bulk_get(&client->dev,
-+				       IMX219_NUM_SUPPLIES,
-+				       imx219->supplies);
-+}
-+
-+/* Verify chip ID */
-+static int imx219_identify_module(struct imx219 *imx219)
-+{
-+	struct i2c_client *client = v4l2_get_subdevdata(&imx219->sd);
-+	int ret;
-+	u32 val;
-+
-+	ret = imx219_read_reg(imx219, IMX219_REG_CHIP_ID,
-+			      IMX219_REG_VALUE_16BIT, &val);
-+	if (ret) {
-+		dev_err(&client->dev, "failed to read chip id %x\n",
-+			IMX219_CHIP_ID);
-+		return ret;
-+	}
-+
-+	if (val != IMX219_CHIP_ID) {
-+		dev_err(&client->dev, "chip id mismatch: %x!=%x\n",
-+			IMX219_CHIP_ID, val);
-+		return -EIO;
-+	}
-+
-+	return 0;
-+}
-+
-+static const struct v4l2_subdev_core_ops imx219_core_ops = {
-+	.subscribe_event = v4l2_ctrl_subdev_subscribe_event,
-+	.unsubscribe_event = v4l2_event_subdev_unsubscribe,
-+};
-+
-+static const struct v4l2_subdev_video_ops imx219_video_ops = {
-+	.s_stream = imx219_set_stream,
-+};
-+
-+static const struct v4l2_subdev_pad_ops imx219_pad_ops = {
-+	.enum_mbus_code = imx219_enum_mbus_code,
-+	.get_fmt = imx219_get_pad_format,
-+	.set_fmt = imx219_set_pad_format,
-+	.enum_frame_size = imx219_enum_frame_size,
-+};
-+
-+static const struct v4l2_subdev_ops imx219_subdev_ops = {
-+	.core = &imx219_core_ops,
-+	.video = &imx219_video_ops,
-+	.pad = &imx219_pad_ops,
-+};
-+
-+static const struct v4l2_subdev_internal_ops imx219_internal_ops = {
-+	.open = imx219_open,
-+};
-+
-+/* Initialize control handlers */
-+static int imx219_init_controls(struct imx219 *imx219)
-+{
-+	struct i2c_client *client = v4l2_get_subdevdata(&imx219->sd);
-+	struct v4l2_ctrl_handler *ctrl_hdlr;
-+	unsigned int height = imx219->mode->height;
-+	int exposure_max, exposure_def, hblank;
-+	int i, ret;
-+
-+	ctrl_hdlr = &imx219->ctrl_handler;
-+	ret = v4l2_ctrl_handler_init(ctrl_hdlr, 9);
-+	if (ret)
-+		return ret;
-+
-+	mutex_init(&imx219->mutex);
-+	ctrl_hdlr->lock = &imx219->mutex;
-+
-+	/* By default, PIXEL_RATE is read only */
-+	imx219->pixel_rate = v4l2_ctrl_new_std(ctrl_hdlr, &imx219_ctrl_ops,
-+					       V4L2_CID_PIXEL_RATE,
-+					       IMX219_PIXEL_RATE,
-+					       IMX219_PIXEL_RATE, 1,
-+					       IMX219_PIXEL_RATE);
-+
-+	/* Initial vblank/hblank/exposure parameters based on current mode */
-+	imx219->vblank = v4l2_ctrl_new_std(ctrl_hdlr, &imx219_ctrl_ops,
-+					   V4L2_CID_VBLANK, IMX219_VBLANK_MIN,
-+					   IMX219_VTS_MAX - height, 1,
-+					   imx219->mode->vts_def - height);
-+	hblank = IMX219_PPL_DEFAULT - imx219->mode->width;
-+	imx219->hblank = v4l2_ctrl_new_std(ctrl_hdlr, &imx219_ctrl_ops,
-+					   V4L2_CID_HBLANK, hblank, hblank,
-+					   1, hblank);
-+	if (imx219->hblank)
-+		imx219->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
-+	exposure_max = imx219->mode->vts_def - 4;
-+	exposure_def = (exposure_max < IMX219_EXPOSURE_DEFAULT) ?
-+		exposure_max : IMX219_EXPOSURE_DEFAULT;
-+	imx219->exposure = v4l2_ctrl_new_std(ctrl_hdlr, &imx219_ctrl_ops,
-+					     V4L2_CID_EXPOSURE,
-+					     IMX219_EXPOSURE_MIN, exposure_max,
-+					     IMX219_EXPOSURE_STEP,
-+					     exposure_def);
-+
-+	v4l2_ctrl_new_std(ctrl_hdlr, &imx219_ctrl_ops, V4L2_CID_ANALOGUE_GAIN,
-+			  IMX219_ANA_GAIN_MIN, IMX219_ANA_GAIN_MAX,
-+			  IMX219_ANA_GAIN_STEP, IMX219_ANA_GAIN_DEFAULT);
-+
-+	v4l2_ctrl_new_std(ctrl_hdlr, &imx219_ctrl_ops, V4L2_CID_DIGITAL_GAIN,
-+			  IMX219_DGTL_GAIN_MIN, IMX219_DGTL_GAIN_MAX,
-+			  IMX219_DGTL_GAIN_STEP, IMX219_DGTL_GAIN_DEFAULT);
-+
-+	imx219->hflip = v4l2_ctrl_new_std(ctrl_hdlr, &imx219_ctrl_ops,
-+					  V4L2_CID_HFLIP, 0, 1, 1, 0);
-+	if (imx219->hflip)
-+		imx219->hflip->flags |= V4L2_CTRL_FLAG_MODIFY_LAYOUT;
-+
-+	imx219->vflip = v4l2_ctrl_new_std(ctrl_hdlr, &imx219_ctrl_ops,
-+					  V4L2_CID_VFLIP, 0, 1, 1, 0);
-+	if (imx219->vflip)
-+		imx219->vflip->flags |= V4L2_CTRL_FLAG_MODIFY_LAYOUT;
-+
-+	v4l2_ctrl_new_std_menu_items(ctrl_hdlr, &imx219_ctrl_ops,
-+				     V4L2_CID_TEST_PATTERN,
-+				     ARRAY_SIZE(imx219_test_pattern_menu) - 1,
-+				     0, 0, imx219_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, &imx219_ctrl_ops,
-+				  V4L2_CID_TEST_PATTERN_RED + i,
-+				  IMX219_TESTP_COLOUR_MIN,
-+				  IMX219_TESTP_COLOUR_MAX,
-+				  IMX219_TESTP_COLOUR_STEP,
-+				  IMX219_TESTP_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;
-+	}
-+
-+	imx219->sd.ctrl_handler = ctrl_hdlr;
-+
-+	return 0;
-+
-+error:
-+	v4l2_ctrl_handler_free(ctrl_hdlr);
-+	mutex_destroy(&imx219->mutex);
-+
-+	return ret;
-+}
-+
-+static void imx219_free_controls(struct imx219 *imx219)
-+{
-+	v4l2_ctrl_handler_free(imx219->sd.ctrl_handler);
-+	mutex_destroy(&imx219->mutex);
-+}
-+
-+static int imx219_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] != IMX219_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 imx219_probe(struct i2c_client *client)
-+{
-+	struct device *dev = &client->dev;
-+	struct imx219 *imx219;
-+	int ret;
-+
-+	imx219 = devm_kzalloc(&client->dev, sizeof(*imx219), GFP_KERNEL);
-+	if (!imx219)
-+		return -ENOMEM;
-+
-+	v4l2_i2c_subdev_init(&imx219->sd, client, &imx219_subdev_ops);
-+
-+	/* Check the hardware configuration in device tree */
-+	if (imx219_check_hwcfg(dev))
-+		return -EINVAL;
-+
-+	/* Get system clock (xclk) */
-+	imx219->xclk = devm_clk_get(dev, NULL);
-+	if (IS_ERR(imx219->xclk)) {
-+		dev_err(dev, "failed to get xclk\n");
-+		return PTR_ERR(imx219->xclk);
-+	}
-+
-+	imx219->xclk_freq = clk_get_rate(imx219->xclk);
-+	if (imx219->xclk_freq != IMX219_XCLK_FREQ) {
-+		dev_err(dev, "xclk frequency not supported: %d Hz\n",
-+			imx219->xclk_freq);
-+		return -EINVAL;
-+	}
-+
-+	ret = imx219_get_regulators(imx219);
-+	if (ret) {
-+		dev_err(dev, "failed to get regulators\n");
-+		return ret;
-+	}
-+
-+	/* Request optional enable pin */
-+	imx219->reset_gpio = devm_gpiod_get_optional(dev, "reset",
-+						     GPIOD_OUT_HIGH);
-+
-+	/*
-+	 * The sensor must be powered for imx219_identify_module()
-+	 * to be able to read the CHIP_ID register
-+	 */
-+	ret = imx219_power_on(dev);
-+	if (ret)
-+		return ret;
-+
-+	ret = imx219_identify_module(imx219);
-+	if (ret)
-+		goto error_power_off;
-+
-+	/* Set default mode to max resolution */
-+	imx219->mode = &supported_modes[0];
-+
-+	ret = imx219_init_controls(imx219);
-+	if (ret)
-+		goto error_power_off;
-+
-+	/* Initialize subdev */
-+	imx219->sd.internal_ops = &imx219_internal_ops;
-+	imx219->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
-+	imx219->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;
-+
-+	/* Initialize source pad */
-+	imx219->pad.flags = MEDIA_PAD_FL_SOURCE;
-+
-+	ret = media_entity_pads_init(&imx219->sd.entity, 1, &imx219->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(&imx219->sd);
-+	if (ret < 0) {
-+		dev_err(dev, "failed to register sensor sub-device: %d\n", ret);
-+		goto error_media_entity;
-+	}
-+
-+	/* Enable runtime PM and turn off the device */
-+	pm_runtime_set_active(dev);
-+	pm_runtime_enable(dev);
-+	pm_runtime_idle(dev);
-+
-+	return 0;
-+
-+error_media_entity:
-+	media_entity_cleanup(&imx219->sd.entity);
-+
-+error_handler_free:
-+	imx219_free_controls(imx219);
-+
-+error_power_off:
-+	imx219_power_off(dev);
-+
-+	return ret;
-+}
-+
-+static int imx219_remove(struct i2c_client *client)
-+{
-+	struct v4l2_subdev *sd = i2c_get_clientdata(client);
-+	struct imx219 *imx219 = to_imx219(sd);
-+
-+	v4l2_async_unregister_subdev(sd);
-+	media_entity_cleanup(&sd->entity);
-+	imx219_free_controls(imx219);
-+
-+	pm_runtime_disable(&client->dev);
-+	if (!pm_runtime_status_suspended(&client->dev))
-+		imx219_power_off(&client->dev);
-+	pm_runtime_set_suspended(&client->dev);
-+
-+	return 0;
-+}
-+
-+static const struct of_device_id imx219_dt_ids[] = {
-+	{ .compatible = "sony,imx219" },
-+	{ /* sentinel */ }
-+};
-+MODULE_DEVICE_TABLE(of, imx219_dt_ids);
-+
-+static const struct dev_pm_ops imx219_pm_ops = {
-+	SET_SYSTEM_SLEEP_PM_OPS(imx219_suspend, imx219_resume)
-+	SET_RUNTIME_PM_OPS(imx219_power_off, imx219_power_on, NULL)
-+};
-+
-+static struct i2c_driver imx219_i2c_driver = {
-+	.driver = {
-+		.name = "imx219",
-+		.of_match_table	= imx219_dt_ids,
-+		.pm = &imx219_pm_ops,
-+	},
-+	.probe_new = imx219_probe,
-+	.remove = imx219_remove,
-+};
-+
-+module_i2c_driver(imx219_i2c_driver);
-+
-+MODULE_AUTHOR("Dave Stevenson <dave.stevenson@raspberrypi.com");
-+MODULE_DESCRIPTION("Sony IMX219 sensor driver");
-+MODULE_LICENSE("GPL v2");
-- 
cgit v1.2.3