Re: [PATCH v7 16/34] [media] add Omnivision OV5640 sensor driver

From: Sakari Ailus
Date: Mon May 29 2017 - 11:56:06 EST

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Hi Steve,

A few comments below.

On Wed, May 24, 2017 at 05:29:31PM -0700, Steve Longerbeam wrote:
> This driver is based on ov5640_mipi.c from Freescale imx_3.10.17_1.0.0_beta
> branch, modified heavily to bring forward to latest interfaces and code
> cleanup.
>
> Signed-off-by: Steve Longerbeam <steve_longerbeam@xxxxxxxxxx>
> ---
> drivers/media/i2c/Kconfig | 9 +
> drivers/media/i2c/Makefile | 1 +
> drivers/media/i2c/ov5640.c | 2224 ++++++++++++++++++++++++++++++++++++++++++++
> 3 files changed, 2234 insertions(+)
> create mode 100644 drivers/media/i2c/ov5640.c
>
> diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig
> index fd181c9..ff082a7 100644
> --- a/drivers/media/i2c/Kconfig
> +++ b/drivers/media/i2c/Kconfig
> @@ -539,6 +539,15 @@ config VIDEO_OV2659
> To compile this driver as a module, choose M here: the
> module will be called ov2659.
>
> +config VIDEO_OV5640
> + tristate "OmniVision OV5640 sensor support"
> + depends on OF
> + depends on GPIOLIB && VIDEO_V4L2 && I2C && VIDEO_V4L2_SUBDEV_API
> + depends on MEDIA_CAMERA_SUPPORT
> + ---help---
> + This is a Video4Linux2 sensor-level driver for the Omnivision
> + OV5640 camera sensor with a MIPI CSI-2 interface.
> +
> config VIDEO_OV5645
> tristate "OmniVision OV5645 sensor support"
> depends on OF
> diff --git a/drivers/media/i2c/Makefile b/drivers/media/i2c/Makefile
> index 62323ec..dc6b0c4 100644
> --- a/drivers/media/i2c/Makefile
> +++ b/drivers/media/i2c/Makefile
> @@ -58,6 +58,7 @@ obj-$(CONFIG_VIDEO_SONY_BTF_MPX) += sony-btf-mpx.o
> obj-$(CONFIG_VIDEO_UPD64031A) += upd64031a.o
> obj-$(CONFIG_VIDEO_UPD64083) += upd64083.o
> obj-$(CONFIG_VIDEO_OV2640) += ov2640.o
> +obj-$(CONFIG_VIDEO_OV5640) += ov5640.o
> obj-$(CONFIG_VIDEO_OV5645) += ov5645.o
> obj-$(CONFIG_VIDEO_OV5647) += ov5647.o
> obj-$(CONFIG_VIDEO_OV7640) += ov7640.o
> diff --git a/drivers/media/i2c/ov5640.c b/drivers/media/i2c/ov5640.c
> new file mode 100644
> index 0000000..2a032bc
> --- /dev/null
> +++ b/drivers/media/i2c/ov5640.c
> @@ -0,0 +1,2224 @@
> +/*
> + * Copyright (C) 2011-2013 Freescale Semiconductor, Inc. All Rights Reserved.
> + * Copyright (C) 2014-2017 Mentor Graphics Inc.
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License as published by
> + * the Free Software Foundation; either version 2 of the License, or
> + * (at your option) any later version.
> + */
> +
> +#include <linux/clk.h>
> +#include <linux/clk-provider.h>
> +#include <linux/clkdev.h>
> +#include <linux/ctype.h>
> +#include <linux/delay.h>
> +#include <linux/device.h>
> +#include <linux/i2c.h>
> +#include <linux/init.h>
> +#include <linux/module.h>
> +#include <linux/of_device.h>
> +#include <linux/slab.h>
> +#include <linux/types.h>
> +#include <linux/gpio/consumer.h>
> +#include <linux/regulator/consumer.h>
> +#include <media/v4l2-async.h>
> +#include <media/v4l2-ctrls.h>
> +#include <media/v4l2-device.h>
> +#include <media/v4l2-of.h>

Could you rebase this on the V4L2 fwnode patchset here, please?

<URL:https://git.linuxtv.org/sailus/media_tree.git/log/?h=v4l2-acpi>

> +#include <media/v4l2-subdev.h>
> +
> +/* min/typical/max system clock (xclk) frequencies */
> +#define OV5640_XCLK_MIN 6000000
> +#define OV5640_XCLK_MAX 24000000
> +
> +/*
> + * FIXME: there is no subdev API to set the MIPI CSI-2
> + * virtual channel yet, so this is hardcoded for now.
> + */
> +#define OV5640_MIPI_VC 1
> +
> +#define OV5640_DEFAULT_SLAVE_ID 0x3c
> +
> +#define OV5640_REG_CHIP_ID 0x300a
> +#define OV5640_REG_PAD_OUTPUT00 0x3019
> +#define OV5640_REG_SC_PLL_CTRL0 0x3034
> +#define OV5640_REG_SC_PLL_CTRL1 0x3035
> +#define OV5640_REG_SC_PLL_CTRL2 0x3036
> +#define OV5640_REG_SC_PLL_CTRL3 0x3037
> +#define OV5640_REG_SLAVE_ID 0x3100
> +#define OV5640_REG_SYS_ROOT_DIVIDER 0x3108
> +#define OV5640_REG_AWB_R_GAIN 0x3400
> +#define OV5640_REG_AWB_G_GAIN 0x3402
> +#define OV5640_REG_AWB_B_GAIN 0x3404
> +#define OV5640_REG_AWB_MANUAL_CTRL 0x3406
> +#define OV5640_REG_AEC_PK_EXPOSURE_HI 0x3500
> +#define OV5640_REG_AEC_PK_EXPOSURE_MED 0x3501
> +#define OV5640_REG_AEC_PK_EXPOSURE_LO 0x3502
> +#define OV5640_REG_AEC_PK_MANUAL 0x3503
> +#define OV5640_REG_AEC_PK_REAL_GAIN 0x350a
> +#define OV5640_REG_AEC_PK_VTS 0x350c
> +#define OV5640_REG_TIMING_HTS 0x380c
> +#define OV5640_REG_TIMING_VTS 0x380e
> +#define OV5640_REG_TIMING_TC_REG21 0x3821
> +#define OV5640_REG_AEC_CTRL00 0x3a00
> +#define OV5640_REG_AEC_B50_STEP 0x3a08
> +#define OV5640_REG_AEC_B60_STEP 0x3a0a
> +#define OV5640_REG_AEC_CTRL0D 0x3a0d
> +#define OV5640_REG_AEC_CTRL0E 0x3a0e
> +#define OV5640_REG_AEC_CTRL0F 0x3a0f
> +#define OV5640_REG_AEC_CTRL10 0x3a10
> +#define OV5640_REG_AEC_CTRL11 0x3a11
> +#define OV5640_REG_AEC_CTRL1B 0x3a1b
> +#define OV5640_REG_AEC_CTRL1E 0x3a1e
> +#define OV5640_REG_AEC_CTRL1F 0x3a1f
> +#define OV5640_REG_HZ5060_CTRL00 0x3c00
> +#define OV5640_REG_HZ5060_CTRL01 0x3c01
> +#define OV5640_REG_SIGMADELTA_CTRL0C 0x3c0c
> +#define OV5640_REG_FRAME_CTRL01 0x4202
> +#define OV5640_REG_MIPI_CTRL00 0x4800
> +#define OV5640_REG_DEBUG_MODE 0x4814
> +#define OV5640_REG_PRE_ISP_TEST_SET1 0x503d
> +#define OV5640_REG_SDE_CTRL0 0x5580
> +#define OV5640_REG_SDE_CTRL1 0x5581
> +#define OV5640_REG_SDE_CTRL3 0x5583
> +#define OV5640_REG_SDE_CTRL4 0x5584
> +#define OV5640_REG_SDE_CTRL5 0x5585
> +#define OV5640_REG_AVG_READOUT 0x56a1
> +
> +enum ov5640_mode_id {
> + OV5640_MODE_QCIF_176_144 = 0,
> + OV5640_MODE_QVGA_320_240,
> + OV5640_MODE_VGA_640_480,
> + OV5640_MODE_NTSC_720_480,
> + OV5640_MODE_PAL_720_576,
> + OV5640_MODE_XGA_1024_768,
> + OV5640_MODE_720P_1280_720,
> + OV5640_MODE_1080P_1920_1080,
> + OV5640_MODE_QSXGA_2592_1944,
> + OV5640_NUM_MODES,
> +};
> +
> +enum ov5640_frame_rate {
> + OV5640_15_FPS = 0,
> + OV5640_30_FPS,
> + OV5640_NUM_FRAMERATES,
> +};
> +
> +static const int ov5640_framerates[] = {
> + [OV5640_15_FPS] = 15,
> + [OV5640_30_FPS] = 30,
> +};
> +
> +/* regulator supplies */
> +static const char * const ov5640_supply_name[] = {
> + "DOVDD", /* Digital I/O (1.8V) suppply */
> + "DVDD", /* Digital Core (1.5V) supply */
> + "AVDD", /* Analog (2.8V) supply */
> +};
> +
> +#define OV5640_NUM_SUPPLIES ARRAY_SIZE(ov5640_supply_name)
> +
> +/*
> + * image size under 1280 * 960 are SUBSAMPLING
> + * image size upper 1280 * 960 are SCALING
> + */
> +enum ov5640_downsize_mode {
> + SUBSAMPLING,
> + SCALING,
> +};
> +
> +struct reg_value {
> + u16 reg_addr;
> + u8 val;
> + u8 mask;
> + u32 delay_ms;
> +};
> +
> +struct ov5640_mode_info {
> + enum ov5640_mode_id id;
> + enum ov5640_downsize_mode dn_mode;
> + u32 width;
> + u32 height;
> + const struct reg_value *reg_data;
> + u32 reg_data_size;
> +};
> +
> +struct ov5640_ctrls {
> + struct v4l2_ctrl_handler handler;
> + struct {
> + struct v4l2_ctrl *auto_exp;
> + struct v4l2_ctrl *exposure;
> + };
> + struct {
> + struct v4l2_ctrl *auto_wb;
> + struct v4l2_ctrl *blue_balance;
> + struct v4l2_ctrl *red_balance;
> + };
> + struct {
> + struct v4l2_ctrl *auto_gain;
> + struct v4l2_ctrl *gain;
> + };
> + struct v4l2_ctrl *brightness;
> + struct v4l2_ctrl *saturation;
> + struct v4l2_ctrl *contrast;
> + struct v4l2_ctrl *hue;
> + struct v4l2_ctrl *test_pattern;
> +};
> +
> +struct ov5640_dev {
> + struct i2c_client *i2c_client;
> + struct v4l2_subdev sd;
> + struct media_pad pad;
> + struct v4l2_of_endpoint ep; /* the parsed DT endpoint info */
> + struct clk *xclk; /* system clock to OV5640 */
> + u32 xclk_freq;
> +
> + struct regulator_bulk_data supplies[OV5640_NUM_SUPPLIES];
> + struct gpio_desc *reset_gpio;
> + struct gpio_desc *pwdn_gpio;
> +
> + /* lock to protect all members below */
> + struct mutex lock;
> +
> + int power_count;
> +
> + struct v4l2_mbus_framefmt fmt;
> +
> + const struct ov5640_mode_info *current_mode;
> + enum ov5640_frame_rate current_fr;
> + struct v4l2_fract frame_interval;
> +
> + struct ov5640_ctrls ctrls;
> +
> + u32 prev_sysclk, prev_hts;
> + u32 ae_low, ae_high, ae_target;
> +
> + bool pending_mode_change;
> + bool streaming;
> +};
> +
> +static inline struct ov5640_dev *to_ov5640_dev(struct v4l2_subdev *sd)
> +{
> + return container_of(sd, struct ov5640_dev, sd);
> +}
> +
> +static inline struct v4l2_subdev *ctrl_to_sd(struct v4l2_ctrl *ctrl)
> +{
> + return &container_of(ctrl->handler, struct ov5640_dev,
> + ctrls.handler)->sd;
> +}
> +
> +/*
> + * FIXME: all of these register tables are likely filled with
> + * entries that set the register to their power-on default values,
> + * and which are otherwise not touched by this driver. Those entries
> + * should be identified and removed to speed register load time
> + * over i2c.
> + */
> +
> +static const struct reg_value ov5640_init_setting_30fps_VGA[] = {
> +
> + {0x3103, 0x11, 0, 0}, {0x3008, 0x82, 0, 5}, {0x3008, 0x42, 0, 0},
> + {0x3103, 0x03, 0, 0}, {0x3017, 0x00, 0, 0}, {0x3018, 0x00, 0, 0},
> + {0x3034, 0x18, 0, 0}, {0x3035, 0x14, 0, 0}, {0x3036, 0x38, 0, 0},
> + {0x3037, 0x13, 0, 0}, {0x3108, 0x01, 0, 0}, {0x3630, 0x36, 0, 0},
> + {0x3631, 0x0e, 0, 0}, {0x3632, 0xe2, 0, 0}, {0x3633, 0x12, 0, 0},
> + {0x3621, 0xe0, 0, 0}, {0x3704, 0xa0, 0, 0}, {0x3703, 0x5a, 0, 0},
> + {0x3715, 0x78, 0, 0}, {0x3717, 0x01, 0, 0}, {0x370b, 0x60, 0, 0},
> + {0x3705, 0x1a, 0, 0}, {0x3905, 0x02, 0, 0}, {0x3906, 0x10, 0, 0},
> + {0x3901, 0x0a, 0, 0}, {0x3731, 0x12, 0, 0}, {0x3600, 0x08, 0, 0},
> + {0x3601, 0x33, 0, 0}, {0x302d, 0x60, 0, 0}, {0x3620, 0x52, 0, 0},
> + {0x371b, 0x20, 0, 0}, {0x471c, 0x50, 0, 0}, {0x3a13, 0x43, 0, 0},
> + {0x3a18, 0x00, 0, 0}, {0x3a19, 0xf8, 0, 0}, {0x3635, 0x13, 0, 0},
> + {0x3636, 0x03, 0, 0}, {0x3634, 0x40, 0, 0}, {0x3622, 0x01, 0, 0},
> + {0x3c01, 0xa4, 0, 0}, {0x3c04, 0x28, 0, 0}, {0x3c05, 0x98, 0, 0},
> + {0x3c06, 0x00, 0, 0}, {0x3c07, 0x08, 0, 0}, {0x3c08, 0x00, 0, 0},
> + {0x3c09, 0x1c, 0, 0}, {0x3c0a, 0x9c, 0, 0}, {0x3c0b, 0x40, 0, 0},
> + {0x3820, 0x41, 0, 0}, {0x3821, 0x07, 0, 0}, {0x3814, 0x31, 0, 0},
> + {0x3815, 0x31, 0, 0}, {0x3800, 0x00, 0, 0}, {0x3801, 0x00, 0, 0},
> + {0x3802, 0x00, 0, 0}, {0x3803, 0x04, 0, 0}, {0x3804, 0x0a, 0, 0},
> + {0x3805, 0x3f, 0, 0}, {0x3806, 0x07, 0, 0}, {0x3807, 0x9b, 0, 0},
> + {0x3808, 0x02, 0, 0}, {0x3809, 0x80, 0, 0}, {0x380a, 0x01, 0, 0},
> + {0x380b, 0xe0, 0, 0}, {0x380c, 0x07, 0, 0}, {0x380d, 0x68, 0, 0},
> + {0x380e, 0x03, 0, 0}, {0x380f, 0xd8, 0, 0}, {0x3810, 0x00, 0, 0},
> + {0x3811, 0x10, 0, 0}, {0x3812, 0x00, 0, 0}, {0x3813, 0x06, 0, 0},
> + {0x3618, 0x00, 0, 0}, {0x3612, 0x29, 0, 0}, {0x3708, 0x64, 0, 0},
> + {0x3709, 0x52, 0, 0}, {0x370c, 0x03, 0, 0}, {0x3a02, 0x03, 0, 0},
> + {0x3a03, 0xd8, 0, 0}, {0x3a08, 0x01, 0, 0}, {0x3a09, 0x27, 0, 0},
> + {0x3a0a, 0x00, 0, 0}, {0x3a0b, 0xf6, 0, 0}, {0x3a0e, 0x03, 0, 0},
> + {0x3a0d, 0x04, 0, 0}, {0x3a14, 0x03, 0, 0}, {0x3a15, 0xd8, 0, 0},
> + {0x4001, 0x02, 0, 0}, {0x4004, 0x02, 0, 0}, {0x3000, 0x00, 0, 0},
> + {0x3002, 0x1c, 0, 0}, {0x3004, 0xff, 0, 0}, {0x3006, 0xc3, 0, 0},
> + {0x300e, 0x45, 0, 0}, {0x302e, 0x08, 0, 0}, {0x4300, 0x3f, 0, 0},
> + {0x501f, 0x00, 0, 0}, {0x4713, 0x03, 0, 0}, {0x4407, 0x04, 0, 0},
> + {0x440e, 0x00, 0, 0}, {0x460b, 0x35, 0, 0}, {0x460c, 0x22, 0, 0},
> + {0x4837, 0x0a, 0, 0}, {0x4800, 0x04, 0, 0}, {0x3824, 0x02, 0, 0},
> + {0x5000, 0xa7, 0, 0}, {0x5001, 0xa3, 0, 0}, {0x5180, 0xff, 0, 0},
> + {0x5181, 0xf2, 0, 0}, {0x5182, 0x00, 0, 0}, {0x5183, 0x14, 0, 0},
> + {0x5184, 0x25, 0, 0}, {0x5185, 0x24, 0, 0}, {0x5186, 0x09, 0, 0},
> + {0x5187, 0x09, 0, 0}, {0x5188, 0x09, 0, 0}, {0x5189, 0x88, 0, 0},
> + {0x518a, 0x54, 0, 0}, {0x518b, 0xee, 0, 0}, {0x518c, 0xb2, 0, 0},
> + {0x518d, 0x50, 0, 0}, {0x518e, 0x34, 0, 0}, {0x518f, 0x6b, 0, 0},
> + {0x5190, 0x46, 0, 0}, {0x5191, 0xf8, 0, 0}, {0x5192, 0x04, 0, 0},
> + {0x5193, 0x70, 0, 0}, {0x5194, 0xf0, 0, 0}, {0x5195, 0xf0, 0, 0},
> + {0x5196, 0x03, 0, 0}, {0x5197, 0x01, 0, 0}, {0x5198, 0x04, 0, 0},
> + {0x5199, 0x6c, 0, 0}, {0x519a, 0x04, 0, 0}, {0x519b, 0x00, 0, 0},
> + {0x519c, 0x09, 0, 0}, {0x519d, 0x2b, 0, 0}, {0x519e, 0x38, 0, 0},
> + {0x5381, 0x1e, 0, 0}, {0x5382, 0x5b, 0, 0}, {0x5383, 0x08, 0, 0},
> + {0x5384, 0x0a, 0, 0}, {0x5385, 0x7e, 0, 0}, {0x5386, 0x88, 0, 0},
> + {0x5387, 0x7c, 0, 0}, {0x5388, 0x6c, 0, 0}, {0x5389, 0x10, 0, 0},
> + {0x538a, 0x01, 0, 0}, {0x538b, 0x98, 0, 0}, {0x5300, 0x08, 0, 0},
> + {0x5301, 0x30, 0, 0}, {0x5302, 0x10, 0, 0}, {0x5303, 0x00, 0, 0},
> + {0x5304, 0x08, 0, 0}, {0x5305, 0x30, 0, 0}, {0x5306, 0x08, 0, 0},
> + {0x5307, 0x16, 0, 0}, {0x5309, 0x08, 0, 0}, {0x530a, 0x30, 0, 0},
> + {0x530b, 0x04, 0, 0}, {0x530c, 0x06, 0, 0}, {0x5480, 0x01, 0, 0},
> + {0x5481, 0x08, 0, 0}, {0x5482, 0x14, 0, 0}, {0x5483, 0x28, 0, 0},
> + {0x5484, 0x51, 0, 0}, {0x5485, 0x65, 0, 0}, {0x5486, 0x71, 0, 0},
> + {0x5487, 0x7d, 0, 0}, {0x5488, 0x87, 0, 0}, {0x5489, 0x91, 0, 0},
> + {0x548a, 0x9a, 0, 0}, {0x548b, 0xaa, 0, 0}, {0x548c, 0xb8, 0, 0},
> + {0x548d, 0xcd, 0, 0}, {0x548e, 0xdd, 0, 0}, {0x548f, 0xea, 0, 0},
> + {0x5490, 0x1d, 0, 0}, {0x5580, 0x02, 0, 0}, {0x5583, 0x40, 0, 0},
> + {0x5584, 0x10, 0, 0}, {0x5589, 0x10, 0, 0}, {0x558a, 0x00, 0, 0},
> + {0x558b, 0xf8, 0, 0}, {0x5800, 0x23, 0, 0}, {0x5801, 0x14, 0, 0},
> + {0x5802, 0x0f, 0, 0}, {0x5803, 0x0f, 0, 0}, {0x5804, 0x12, 0, 0},
> + {0x5805, 0x26, 0, 0}, {0x5806, 0x0c, 0, 0}, {0x5807, 0x08, 0, 0},
> + {0x5808, 0x05, 0, 0}, {0x5809, 0x05, 0, 0}, {0x580a, 0x08, 0, 0},
> + {0x580b, 0x0d, 0, 0}, {0x580c, 0x08, 0, 0}, {0x580d, 0x03, 0, 0},
> + {0x580e, 0x00, 0, 0}, {0x580f, 0x00, 0, 0}, {0x5810, 0x03, 0, 0},
> + {0x5811, 0x09, 0, 0}, {0x5812, 0x07, 0, 0}, {0x5813, 0x03, 0, 0},
> + {0x5814, 0x00, 0, 0}, {0x5815, 0x01, 0, 0}, {0x5816, 0x03, 0, 0},
> + {0x5817, 0x08, 0, 0}, {0x5818, 0x0d, 0, 0}, {0x5819, 0x08, 0, 0},
> + {0x581a, 0x05, 0, 0}, {0x581b, 0x06, 0, 0}, {0x581c, 0x08, 0, 0},
> + {0x581d, 0x0e, 0, 0}, {0x581e, 0x29, 0, 0}, {0x581f, 0x17, 0, 0},
> + {0x5820, 0x11, 0, 0}, {0x5821, 0x11, 0, 0}, {0x5822, 0x15, 0, 0},
> + {0x5823, 0x28, 0, 0}, {0x5824, 0x46, 0, 0}, {0x5825, 0x26, 0, 0},
> + {0x5826, 0x08, 0, 0}, {0x5827, 0x26, 0, 0}, {0x5828, 0x64, 0, 0},
> + {0x5829, 0x26, 0, 0}, {0x582a, 0x24, 0, 0}, {0x582b, 0x22, 0, 0},
> + {0x582c, 0x24, 0, 0}, {0x582d, 0x24, 0, 0}, {0x582e, 0x06, 0, 0},
> + {0x582f, 0x22, 0, 0}, {0x5830, 0x40, 0, 0}, {0x5831, 0x42, 0, 0},
> + {0x5832, 0x24, 0, 0}, {0x5833, 0x26, 0, 0}, {0x5834, 0x24, 0, 0},
> + {0x5835, 0x22, 0, 0}, {0x5836, 0x22, 0, 0}, {0x5837, 0x26, 0, 0},
> + {0x5838, 0x44, 0, 0}, {0x5839, 0x24, 0, 0}, {0x583a, 0x26, 0, 0},
> + {0x583b, 0x28, 0, 0}, {0x583c, 0x42, 0, 0}, {0x583d, 0xce, 0, 0},
> + {0x5025, 0x00, 0, 0}, {0x3a0f, 0x30, 0, 0}, {0x3a10, 0x28, 0, 0},
> + {0x3a1b, 0x30, 0, 0}, {0x3a1e, 0x26, 0, 0}, {0x3a11, 0x60, 0, 0},
> + {0x3a1f, 0x14, 0, 0}, {0x3008, 0x02, 0, 0}, {0x3c00, 0x04, 0, 300},
> +};
> +
> +static const struct reg_value ov5640_setting_30fps_VGA_640_480[] = {
> +
> + {0x3035, 0x14, 0, 0}, {0x3036, 0x38, 0, 0}, {0x3c07, 0x08, 0, 0},
> + {0x3c09, 0x1c, 0, 0}, {0x3c0a, 0x9c, 0, 0}, {0x3c0b, 0x40, 0, 0},
> + {0x3820, 0x41, 0, 0}, {0x3821, 0x07, 0, 0}, {0x3814, 0x31, 0, 0},
> + {0x3815, 0x31, 0, 0}, {0x3800, 0x00, 0, 0}, {0x3801, 0x00, 0, 0},
> + {0x3802, 0x00, 0, 0}, {0x3803, 0x04, 0, 0}, {0x3804, 0x0a, 0, 0},
> + {0x3805, 0x3f, 0, 0}, {0x3806, 0x07, 0, 0}, {0x3807, 0x9b, 0, 0},
> + {0x3808, 0x02, 0, 0}, {0x3809, 0x80, 0, 0}, {0x380a, 0x01, 0, 0},
> + {0x380b, 0xe0, 0, 0}, {0x380c, 0x07, 0, 0}, {0x380d, 0x68, 0, 0},
> + {0x380e, 0x04, 0, 0}, {0x380f, 0x38, 0, 0}, {0x3810, 0x00, 0, 0},
> + {0x3811, 0x10, 0, 0}, {0x3812, 0x00, 0, 0}, {0x3813, 0x06, 0, 0},
> + {0x3618, 0x00, 0, 0}, {0x3612, 0x29, 0, 0}, {0x3708, 0x64, 0, 0},
> + {0x3709, 0x52, 0, 0}, {0x370c, 0x03, 0, 0}, {0x3a02, 0x03, 0, 0},
> + {0x3a03, 0xd8, 0, 0}, {0x3a08, 0x01, 0, 0}, {0x3a09, 0x0e, 0, 0},
> + {0x3a0a, 0x00, 0, 0}, {0x3a0b, 0xf6, 0, 0}, {0x3a0e, 0x03, 0, 0},
> + {0x3a0d, 0x04, 0, 0}, {0x3a14, 0x03, 0, 0}, {0x3a15, 0xd8, 0, 0},
> + {0x4001, 0x02, 0, 0}, {0x4004, 0x02, 0, 0}, {0x4713, 0x03, 0, 0},
> + {0x4407, 0x04, 0, 0}, {0x460b, 0x35, 0, 0}, {0x460c, 0x22, 0, 0},
> + {0x3824, 0x02, 0, 0}, {0x5001, 0xa3, 0, 0}, {0x3503, 0x00, 0, 0},
> +};
> +
> +static const struct reg_value ov5640_setting_15fps_VGA_640_480[] = {
> + {0x3035, 0x22, 0, 0}, {0x3036, 0x38, 0, 0}, {0x3c07, 0x08, 0, 0},
> + {0x3c09, 0x1c, 0, 0}, {0x3c0a, 0x9c, 0, 0}, {0x3c0b, 0x40, 0, 0},
> + {0x3820, 0x41, 0, 0}, {0x3821, 0x07, 0, 0}, {0x3814, 0x31, 0, 0},
> + {0x3815, 0x31, 0, 0}, {0x3800, 0x00, 0, 0}, {0x3801, 0x00, 0, 0},
> + {0x3802, 0x00, 0, 0}, {0x3803, 0x04, 0, 0}, {0x3804, 0x0a, 0, 0},
> + {0x3805, 0x3f, 0, 0}, {0x3806, 0x07, 0, 0}, {0x3807, 0x9b, 0, 0},
> + {0x3808, 0x02, 0, 0}, {0x3809, 0x80, 0, 0}, {0x380a, 0x01, 0, 0},
> + {0x380b, 0xe0, 0, 0}, {0x380c, 0x07, 0, 0}, {0x380d, 0x68, 0, 0},
> + {0x380e, 0x03, 0, 0}, {0x380f, 0xd8, 0, 0}, {0x3810, 0x00, 0, 0},
> + {0x3811, 0x10, 0, 0}, {0x3812, 0x00, 0, 0}, {0x3813, 0x06, 0, 0},
> + {0x3618, 0x00, 0, 0}, {0x3612, 0x29, 0, 0}, {0x3708, 0x64, 0, 0},
> + {0x3709, 0x52, 0, 0}, {0x370c, 0x03, 0, 0}, {0x3a02, 0x03, 0, 0},
> + {0x3a03, 0xd8, 0, 0}, {0x3a08, 0x01, 0, 0}, {0x3a09, 0x27, 0, 0},
> + {0x3a0a, 0x00, 0, 0}, {0x3a0b, 0xf6, 0, 0}, {0x3a0e, 0x03, 0, 0},
> + {0x3a0d, 0x04, 0, 0}, {0x3a14, 0x03, 0, 0}, {0x3a15, 0xd8, 0, 0},
> + {0x4001, 0x02, 0, 0}, {0x4004, 0x02, 0, 0}, {0x4713, 0x03, 0, 0},
> + {0x4407, 0x04, 0, 0}, {0x460b, 0x35, 0, 0}, {0x460c, 0x22, 0, 0},
> + {0x3824, 0x02, 0, 0}, {0x5001, 0xa3, 0, 0},
> +};
> +
> +static const struct reg_value ov5640_setting_30fps_XGA_1024_768[] = {
> +
> + {0x3035, 0x14, 0, 0}, {0x3036, 0x38, 0, 0}, {0x3c07, 0x08, 0, 0},
> + {0x3c09, 0x1c, 0, 0}, {0x3c0a, 0x9c, 0, 0}, {0x3c0b, 0x40, 0, 0},
> + {0x3820, 0x41, 0, 0}, {0x3821, 0x07, 0, 0}, {0x3814, 0x31, 0, 0},
> + {0x3815, 0x31, 0, 0}, {0x3800, 0x00, 0, 0}, {0x3801, 0x00, 0, 0},
> + {0x3802, 0x00, 0, 0}, {0x3803, 0x04, 0, 0}, {0x3804, 0x0a, 0, 0},
> + {0x3805, 0x3f, 0, 0}, {0x3806, 0x07, 0, 0}, {0x3807, 0x9b, 0, 0},
> + {0x3808, 0x02, 0, 0}, {0x3809, 0x80, 0, 0}, {0x380a, 0x01, 0, 0},
> + {0x380b, 0xe0, 0, 0}, {0x380c, 0x07, 0, 0}, {0x380d, 0x68, 0, 0},
> + {0x380e, 0x04, 0, 0}, {0x380f, 0x38, 0, 0}, {0x3810, 0x00, 0, 0},
> + {0x3811, 0x10, 0, 0}, {0x3812, 0x00, 0, 0}, {0x3813, 0x06, 0, 0},
> + {0x3618, 0x00, 0, 0}, {0x3612, 0x29, 0, 0}, {0x3708, 0x64, 0, 0},
> + {0x3709, 0x52, 0, 0}, {0x370c, 0x03, 0, 0}, {0x3a02, 0x03, 0, 0},
> + {0x3a03, 0xd8, 0, 0}, {0x3a08, 0x01, 0, 0}, {0x3a09, 0x0e, 0, 0},
> + {0x3a0a, 0x00, 0, 0}, {0x3a0b, 0xf6, 0, 0}, {0x3a0e, 0x03, 0, 0},
> + {0x3a0d, 0x04, 0, 0}, {0x3a14, 0x03, 0, 0}, {0x3a15, 0xd8, 0, 0},
> + {0x4001, 0x02, 0, 0}, {0x4004, 0x02, 0, 0}, {0x4713, 0x03, 0, 0},
> + {0x4407, 0x04, 0, 0}, {0x460b, 0x35, 0, 0}, {0x460c, 0x22, 0, 0},
> + {0x3824, 0x02, 0, 0}, {0x5001, 0xa3, 0, 0}, {0x3503, 0x00, 0, 0},
> + {0x3808, 0x04, 0, 0}, {0x3809, 0x00, 0, 0}, {0x380a, 0x03, 0, 0},
> + {0x380b, 0x00, 0, 0}, {0x3035, 0x12, 0, 0},
> +};
> +
> +static const struct reg_value ov5640_setting_15fps_XGA_1024_768[] = {
> + {0x3035, 0x22, 0, 0}, {0x3036, 0x38, 0, 0}, {0x3c07, 0x08, 0, 0},
> + {0x3c09, 0x1c, 0, 0}, {0x3c0a, 0x9c, 0, 0}, {0x3c0b, 0x40, 0, 0},
> + {0x3820, 0x41, 0, 0}, {0x3821, 0x07, 0, 0}, {0x3814, 0x31, 0, 0},
> + {0x3815, 0x31, 0, 0}, {0x3800, 0x00, 0, 0}, {0x3801, 0x00, 0, 0},
> + {0x3802, 0x00, 0, 0}, {0x3803, 0x04, 0, 0}, {0x3804, 0x0a, 0, 0},
> + {0x3805, 0x3f, 0, 0}, {0x3806, 0x07, 0, 0}, {0x3807, 0x9b, 0, 0},
> + {0x3808, 0x02, 0, 0}, {0x3809, 0x80, 0, 0}, {0x380a, 0x01, 0, 0},
> + {0x380b, 0xe0, 0, 0}, {0x380c, 0x07, 0, 0}, {0x380d, 0x68, 0, 0},
> + {0x380e, 0x03, 0, 0}, {0x380f, 0xd8, 0, 0}, {0x3810, 0x00, 0, 0},
> + {0x3811, 0x10, 0, 0}, {0x3812, 0x00, 0, 0}, {0x3813, 0x06, 0, 0},
> + {0x3618, 0x00, 0, 0}, {0x3612, 0x29, 0, 0}, {0x3708, 0x64, 0, 0},
> + {0x3709, 0x52, 0, 0}, {0x370c, 0x03, 0, 0}, {0x3a02, 0x03, 0, 0},
> + {0x3a03, 0xd8, 0, 0}, {0x3a08, 0x01, 0, 0}, {0x3a09, 0x27, 0, 0},
> + {0x3a0a, 0x00, 0, 0}, {0x3a0b, 0xf6, 0, 0}, {0x3a0e, 0x03, 0, 0},
> + {0x3a0d, 0x04, 0, 0}, {0x3a14, 0x03, 0, 0}, {0x3a15, 0xd8, 0, 0},
> + {0x4001, 0x02, 0, 0}, {0x4004, 0x02, 0, 0}, {0x4713, 0x03, 0, 0},
> + {0x4407, 0x04, 0, 0}, {0x460b, 0x35, 0, 0}, {0x460c, 0x22, 0, 0},
> + {0x3824, 0x02, 0, 0}, {0x5001, 0xa3, 0, 0}, {0x3808, 0x04, 0, 0},
> + {0x3809, 0x00, 0, 0}, {0x380a, 0x03, 0, 0}, {0x380b, 0x00, 0, 0},
> +};
> +
> +static const struct reg_value ov5640_setting_30fps_QVGA_320_240[] = {
> + {0x3035, 0x14, 0, 0}, {0x3036, 0x38, 0, 0}, {0x3c07, 0x08, 0, 0},
> + {0x3c09, 0x1c, 0, 0}, {0x3c0a, 0x9c, 0, 0}, {0x3c0b, 0x40, 0, 0},
> + {0x3820, 0x41, 0, 0}, {0x3821, 0x07, 0, 0}, {0x3814, 0x31, 0, 0},
> + {0x3815, 0x31, 0, 0}, {0x3800, 0x00, 0, 0}, {0x3801, 0x00, 0, 0},
> + {0x3802, 0x00, 0, 0}, {0x3803, 0x04, 0, 0}, {0x3804, 0x0a, 0, 0},
> + {0x3805, 0x3f, 0, 0}, {0x3806, 0x07, 0, 0}, {0x3807, 0x9b, 0, 0},
> + {0x3808, 0x01, 0, 0}, {0x3809, 0x40, 0, 0}, {0x380a, 0x00, 0, 0},
> + {0x380b, 0xf0, 0, 0}, {0x380c, 0x07, 0, 0}, {0x380d, 0x68, 0, 0},
> + {0x380e, 0x03, 0, 0}, {0x380f, 0xd8, 0, 0}, {0x3810, 0x00, 0, 0},
> + {0x3811, 0x10, 0, 0}, {0x3812, 0x00, 0, 0}, {0x3813, 0x06, 0, 0},
> + {0x3618, 0x00, 0, 0}, {0x3612, 0x29, 0, 0}, {0x3708, 0x64, 0, 0},
> + {0x3709, 0x52, 0, 0}, {0x370c, 0x03, 0, 0}, {0x3a02, 0x03, 0, 0},
> + {0x3a03, 0xd8, 0, 0}, {0x3a08, 0x01, 0, 0}, {0x3a09, 0x27, 0, 0},
> + {0x3a0a, 0x00, 0, 0}, {0x3a0b, 0xf6, 0, 0}, {0x3a0e, 0x03, 0, 0},
> + {0x3a0d, 0x04, 0, 0}, {0x3a14, 0x03, 0, 0}, {0x3a15, 0xd8, 0, 0},
> + {0x4001, 0x02, 0, 0}, {0x4004, 0x02, 0, 0}, {0x4713, 0x03, 0, 0},
> + {0x4407, 0x04, 0, 0}, {0x460b, 0x35, 0, 0}, {0x460c, 0x22, 0, 0},
> + {0x3824, 0x02, 0, 0}, {0x5001, 0xa3, 0, 0},
> +};
> +
> +static const struct reg_value ov5640_setting_15fps_QVGA_320_240[] = {
> + {0x3035, 0x22, 0, 0}, {0x3036, 0x38, 0, 0}, {0x3c07, 0x08, 0, 0},
> + {0x3c09, 0x1c, 0, 0}, {0x3c0a, 0x9c, 0, 0}, {0x3c0b, 0x40, 0, 0},
> + {0x3820, 0x41, 0, 0}, {0x3821, 0x07, 0, 0}, {0x3814, 0x31, 0, 0},
> + {0x3815, 0x31, 0, 0}, {0x3800, 0x00, 0, 0}, {0x3801, 0x00, 0, 0},
> + {0x3802, 0x00, 0, 0}, {0x3803, 0x04, 0, 0}, {0x3804, 0x0a, 0, 0},
> + {0x3805, 0x3f, 0, 0}, {0x3806, 0x07, 0, 0}, {0x3807, 0x9b, 0, 0},
> + {0x3808, 0x01, 0, 0}, {0x3809, 0x40, 0, 0}, {0x380a, 0x00, 0, 0},
> + {0x380b, 0xf0, 0, 0}, {0x380c, 0x07, 0, 0}, {0x380d, 0x68, 0, 0},
> + {0x380e, 0x03, 0, 0}, {0x380f, 0xd8, 0, 0}, {0x3810, 0x00, 0, 0},
> + {0x3811, 0x10, 0, 0}, {0x3812, 0x00, 0, 0}, {0x3813, 0x06, 0, 0},
> + {0x3618, 0x00, 0, 0}, {0x3612, 0x29, 0, 0}, {0x3708, 0x64, 0, 0},
> + {0x3709, 0x52, 0, 0}, {0x370c, 0x03, 0, 0}, {0x3a02, 0x03, 0, 0},
> + {0x3a03, 0xd8, 0, 0}, {0x3a08, 0x01, 0, 0}, {0x3a09, 0x27, 0, 0},
> + {0x3a0a, 0x00, 0, 0}, {0x3a0b, 0xf6, 0, 0}, {0x3a0e, 0x03, 0, 0},
> + {0x3a0d, 0x04, 0, 0}, {0x3a14, 0x03, 0, 0}, {0x3a15, 0xd8, 0, 0},
> + {0x4001, 0x02, 0, 0}, {0x4004, 0x02, 0, 0}, {0x4713, 0x03, 0, 0},
> + {0x4407, 0x04, 0, 0}, {0x460b, 0x35, 0, 0}, {0x460c, 0x22, 0, 0},
> + {0x3824, 0x02, 0, 0}, {0x5001, 0xa3, 0, 0},
> +};
> +
> +static const struct reg_value ov5640_setting_30fps_QCIF_176_144[] = {
> + {0x3035, 0x14, 0, 0}, {0x3036, 0x38, 0, 0}, {0x3c07, 0x08, 0, 0},
> + {0x3c09, 0x1c, 0, 0}, {0x3c0a, 0x9c, 0, 0}, {0x3c0b, 0x40, 0, 0},
> + {0x3820, 0x41, 0, 0}, {0x3821, 0x07, 0, 0}, {0x3814, 0x31, 0, 0},
> + {0x3815, 0x31, 0, 0}, {0x3800, 0x00, 0, 0}, {0x3801, 0x00, 0, 0},
> + {0x3802, 0x00, 0, 0}, {0x3803, 0x04, 0, 0}, {0x3804, 0x0a, 0, 0},
> + {0x3805, 0x3f, 0, 0}, {0x3806, 0x07, 0, 0}, {0x3807, 0x9b, 0, 0},
> + {0x3808, 0x00, 0, 0}, {0x3809, 0xb0, 0, 0}, {0x380a, 0x00, 0, 0},
> + {0x380b, 0x90, 0, 0}, {0x380c, 0x07, 0, 0}, {0x380d, 0x68, 0, 0},
> + {0x380e, 0x03, 0, 0}, {0x380f, 0xd8, 0, 0}, {0x3810, 0x00, 0, 0},
> + {0x3811, 0x10, 0, 0}, {0x3812, 0x00, 0, 0}, {0x3813, 0x06, 0, 0},
> + {0x3618, 0x00, 0, 0}, {0x3612, 0x29, 0, 0}, {0x3708, 0x64, 0, 0},
> + {0x3709, 0x52, 0, 0}, {0x370c, 0x03, 0, 0}, {0x3a02, 0x03, 0, 0},
> + {0x3a03, 0xd8, 0, 0}, {0x3a08, 0x01, 0, 0}, {0x3a09, 0x27, 0, 0},
> + {0x3a0a, 0x00, 0, 0}, {0x3a0b, 0xf6, 0, 0}, {0x3a0e, 0x03, 0, 0},
> + {0x3a0d, 0x04, 0, 0}, {0x3a14, 0x03, 0, 0}, {0x3a15, 0xd8, 0, 0},
> + {0x4001, 0x02, 0, 0}, {0x4004, 0x02, 0, 0}, {0x4713, 0x03, 0, 0},
> + {0x4407, 0x04, 0, 0}, {0x460b, 0x35, 0, 0}, {0x460c, 0x22, 0, 0},
> + {0x3824, 0x02, 0, 0}, {0x5001, 0xa3, 0, 0},
> +};
> +static const struct reg_value ov5640_setting_15fps_QCIF_176_144[] = {
> + {0x3035, 0x22, 0, 0}, {0x3036, 0x38, 0, 0}, {0x3c07, 0x08, 0, 0},
> + {0x3c09, 0x1c, 0, 0}, {0x3c0a, 0x9c, 0, 0}, {0x3c0b, 0x40, 0, 0},
> + {0x3820, 0x41, 0, 0}, {0x3821, 0x07, 0, 0}, {0x3814, 0x31, 0, 0},
> + {0x3815, 0x31, 0, 0}, {0x3800, 0x00, 0, 0}, {0x3801, 0x00, 0, 0},
> + {0x3802, 0x00, 0, 0}, {0x3803, 0x04, 0, 0}, {0x3804, 0x0a, 0, 0},
> + {0x3805, 0x3f, 0, 0}, {0x3806, 0x07, 0, 0}, {0x3807, 0x9b, 0, 0},
> + {0x3808, 0x00, 0, 0}, {0x3809, 0xb0, 0, 0}, {0x380a, 0x00, 0, 0},
> + {0x380b, 0x90, 0, 0}, {0x380c, 0x07, 0, 0}, {0x380d, 0x68, 0, 0},
> + {0x380e, 0x03, 0, 0}, {0x380f, 0xd8, 0, 0}, {0x3810, 0x00, 0, 0},
> + {0x3811, 0x10, 0, 0}, {0x3812, 0x00, 0, 0}, {0x3813, 0x06, 0, 0},
> + {0x3618, 0x00, 0, 0}, {0x3612, 0x29, 0, 0}, {0x3708, 0x64, 0, 0},
> + {0x3709, 0x52, 0, 0}, {0x370c, 0x03, 0, 0}, {0x3a02, 0x03, 0, 0},
> + {0x3a03, 0xd8, 0, 0}, {0x3a08, 0x01, 0, 0}, {0x3a09, 0x27, 0, 0},
> + {0x3a0a, 0x00, 0, 0}, {0x3a0b, 0xf6, 0, 0}, {0x3a0e, 0x03, 0, 0},
> + {0x3a0d, 0x04, 0, 0}, {0x3a14, 0x03, 0, 0}, {0x3a15, 0xd8, 0, 0},
> + {0x4001, 0x02, 0, 0}, {0x4004, 0x02, 0, 0}, {0x4713, 0x03, 0, 0},
> + {0x4407, 0x04, 0, 0}, {0x460b, 0x35, 0, 0}, {0x460c, 0x22, 0, 0},
> + {0x3824, 0x02, 0, 0}, {0x5001, 0xa3, 0, 0},
> +};
> +
> +static const struct reg_value ov5640_setting_30fps_NTSC_720_480[] = {
> + {0x3035, 0x12, 0, 0}, {0x3036, 0x38, 0, 0}, {0x3c07, 0x08, 0, 0},
> + {0x3c09, 0x1c, 0, 0}, {0x3c0a, 0x9c, 0, 0}, {0x3c0b, 0x40, 0, 0},
> + {0x3820, 0x41, 0, 0}, {0x3821, 0x07, 0, 0}, {0x3814, 0x31, 0, 0},
> + {0x3815, 0x31, 0, 0}, {0x3800, 0x00, 0, 0}, {0x3801, 0x00, 0, 0},
> + {0x3802, 0x00, 0, 0}, {0x3803, 0x04, 0, 0}, {0x3804, 0x0a, 0, 0},
> + {0x3805, 0x3f, 0, 0}, {0x3806, 0x07, 0, 0}, {0x3807, 0x9b, 0, 0},
> + {0x3808, 0x02, 0, 0}, {0x3809, 0xd0, 0, 0}, {0x380a, 0x01, 0, 0},
> + {0x380b, 0xe0, 0, 0}, {0x380c, 0x07, 0, 0}, {0x380d, 0x68, 0, 0},
> + {0x380e, 0x03, 0, 0}, {0x380f, 0xd8, 0, 0}, {0x3810, 0x00, 0, 0},
> + {0x3811, 0x10, 0, 0}, {0x3812, 0x00, 0, 0}, {0x3813, 0x3c, 0, 0},
> + {0x3618, 0x00, 0, 0}, {0x3612, 0x29, 0, 0}, {0x3708, 0x64, 0, 0},
> + {0x3709, 0x52, 0, 0}, {0x370c, 0x03, 0, 0}, {0x3a02, 0x03, 0, 0},
> + {0x3a03, 0xd8, 0, 0}, {0x3a08, 0x01, 0, 0}, {0x3a09, 0x27, 0, 0},
> + {0x3a0a, 0x00, 0, 0}, {0x3a0b, 0xf6, 0, 0}, {0x3a0e, 0x03, 0, 0},
> + {0x3a0d, 0x04, 0, 0}, {0x3a14, 0x03, 0, 0}, {0x3a15, 0xd8, 0, 0},
> + {0x4001, 0x02, 0, 0}, {0x4004, 0x02, 0, 0}, {0x4713, 0x03, 0, 0},
> + {0x4407, 0x04, 0, 0}, {0x460b, 0x35, 0, 0}, {0x460c, 0x22, 0, 0},
> + {0x3824, 0x02, 0, 0}, {0x5001, 0xa3, 0, 0},
> +};
> +
> +static const struct reg_value ov5640_setting_15fps_NTSC_720_480[] = {
> + {0x3035, 0x22, 0, 0}, {0x3036, 0x38, 0, 0}, {0x3c07, 0x08, 0, 0},
> + {0x3c09, 0x1c, 0, 0}, {0x3c0a, 0x9c, 0, 0}, {0x3c0b, 0x40, 0, 0},
> + {0x3820, 0x41, 0, 0}, {0x3821, 0x07, 0, 0}, {0x3814, 0x31, 0, 0},
> + {0x3815, 0x31, 0, 0}, {0x3800, 0x00, 0, 0}, {0x3801, 0x00, 0, 0},
> + {0x3802, 0x00, 0, 0}, {0x3803, 0x04, 0, 0}, {0x3804, 0x0a, 0, 0},
> + {0x3805, 0x3f, 0, 0}, {0x3806, 0x07, 0, 0}, {0x3807, 0x9b, 0, 0},
> + {0x3808, 0x02, 0, 0}, {0x3809, 0xd0, 0, 0}, {0x380a, 0x01, 0, 0},
> + {0x380b, 0xe0, 0, 0}, {0x380c, 0x07, 0, 0}, {0x380d, 0x68, 0, 0},
> + {0x380e, 0x03, 0, 0}, {0x380f, 0xd8, 0, 0}, {0x3810, 0x00, 0, 0},
> + {0x3811, 0x10, 0, 0}, {0x3812, 0x00, 0, 0}, {0x3813, 0x3c, 0, 0},
> + {0x3618, 0x00, 0, 0}, {0x3612, 0x29, 0, 0}, {0x3708, 0x64, 0, 0},
> + {0x3709, 0x52, 0, 0}, {0x370c, 0x03, 0, 0}, {0x3a02, 0x03, 0, 0},
> + {0x3a03, 0xd8, 0, 0}, {0x3a08, 0x01, 0, 0}, {0x3a09, 0x27, 0, 0},
> + {0x3a0a, 0x00, 0, 0}, {0x3a0b, 0xf6, 0, 0}, {0x3a0e, 0x03, 0, 0},
> + {0x3a0d, 0x04, 0, 0}, {0x3a14, 0x03, 0, 0}, {0x3a15, 0xd8, 0, 0},
> + {0x4001, 0x02, 0, 0}, {0x4004, 0x02, 0, 0}, {0x4713, 0x03, 0, 0},
> + {0x4407, 0x04, 0, 0}, {0x460b, 0x35, 0, 0}, {0x460c, 0x22, 0, 0},
> + {0x3824, 0x02, 0, 0}, {0x5001, 0xa3, 0, 0},
> +};
> +
> +static const struct reg_value ov5640_setting_30fps_PAL_720_576[] = {
> + {0x3035, 0x12, 0, 0}, {0x3036, 0x38, 0, 0}, {0x3c07, 0x08, 0, 0},
> + {0x3c09, 0x1c, 0, 0}, {0x3c0a, 0x9c, 0, 0}, {0x3c0b, 0x40, 0, 0},
> + {0x3820, 0x41, 0, 0}, {0x3821, 0x07, 0, 0}, {0x3814, 0x31, 0, 0},
> + {0x3815, 0x31, 0, 0}, {0x3800, 0x00, 0, 0}, {0x3801, 0x00, 0, 0},
> + {0x3802, 0x00, 0, 0}, {0x3803, 0x04, 0, 0}, {0x3804, 0x0a, 0, 0},
> + {0x3805, 0x3f, 0, 0}, {0x3806, 0x07, 0, 0}, {0x3807, 0x9b, 0, 0},
> + {0x3808, 0x02, 0, 0}, {0x3809, 0xd0, 0, 0}, {0x380a, 0x02, 0, 0},
> + {0x380b, 0x40, 0, 0}, {0x380c, 0x07, 0, 0}, {0x380d, 0x68, 0, 0},
> + {0x380e, 0x03, 0, 0}, {0x380f, 0xd8, 0, 0}, {0x3810, 0x00, 0, 0},
> + {0x3811, 0x38, 0, 0}, {0x3812, 0x00, 0, 0}, {0x3813, 0x06, 0, 0},
> + {0x3618, 0x00, 0, 0}, {0x3612, 0x29, 0, 0}, {0x3708, 0x64, 0, 0},
> + {0x3709, 0x52, 0, 0}, {0x370c, 0x03, 0, 0}, {0x3a02, 0x03, 0, 0},
> + {0x3a03, 0xd8, 0, 0}, {0x3a08, 0x01, 0, 0}, {0x3a09, 0x27, 0, 0},
> + {0x3a0a, 0x00, 0, 0}, {0x3a0b, 0xf6, 0, 0}, {0x3a0e, 0x03, 0, 0},
> + {0x3a0d, 0x04, 0, 0}, {0x3a14, 0x03, 0, 0}, {0x3a15, 0xd8, 0, 0},
> + {0x4001, 0x02, 0, 0}, {0x4004, 0x02, 0, 0}, {0x4713, 0x03, 0, 0},
> + {0x4407, 0x04, 0, 0}, {0x460b, 0x35, 0, 0}, {0x460c, 0x22, 0, 0},
> + {0x3824, 0x02, 0, 0}, {0x5001, 0xa3, 0, 0},
> +};
> +
> +static const struct reg_value ov5640_setting_15fps_PAL_720_576[] = {
> + {0x3035, 0x22, 0, 0}, {0x3036, 0x38, 0, 0}, {0x3c07, 0x08, 0, 0},
> + {0x3c09, 0x1c, 0, 0}, {0x3c0a, 0x9c, 0, 0}, {0x3c0b, 0x40, 0, 0},
> + {0x3820, 0x41, 0, 0}, {0x3821, 0x07, 0, 0}, {0x3814, 0x31, 0, 0},
> + {0x3815, 0x31, 0, 0}, {0x3800, 0x00, 0, 0}, {0x3801, 0x00, 0, 0},
> + {0x3802, 0x00, 0, 0}, {0x3803, 0x04, 0, 0}, {0x3804, 0x0a, 0, 0},
> + {0x3805, 0x3f, 0, 0}, {0x3806, 0x07, 0, 0}, {0x3807, 0x9b, 0, 0},
> + {0x3808, 0x02, 0, 0}, {0x3809, 0xd0, 0, 0}, {0x380a, 0x02, 0, 0},
> + {0x380b, 0x40, 0, 0}, {0x380c, 0x07, 0, 0}, {0x380d, 0x68, 0, 0},
> + {0x380e, 0x03, 0, 0}, {0x380f, 0xd8, 0, 0}, {0x3810, 0x00, 0, 0},
> + {0x3811, 0x38, 0, 0}, {0x3812, 0x00, 0, 0}, {0x3813, 0x06, 0, 0},
> + {0x3618, 0x00, 0, 0}, {0x3612, 0x29, 0, 0}, {0x3708, 0x64, 0, 0},
> + {0x3709, 0x52, 0, 0}, {0x370c, 0x03, 0, 0}, {0x3a02, 0x03, 0, 0},
> + {0x3a03, 0xd8, 0, 0}, {0x3a08, 0x01, 0, 0}, {0x3a09, 0x27, 0, 0},
> + {0x3a0a, 0x00, 0, 0}, {0x3a0b, 0xf6, 0, 0}, {0x3a0e, 0x03, 0, 0},
> + {0x3a0d, 0x04, 0, 0}, {0x3a14, 0x03, 0, 0}, {0x3a15, 0xd8, 0, 0},
> + {0x4001, 0x02, 0, 0}, {0x4004, 0x02, 0, 0}, {0x4713, 0x03, 0, 0},
> + {0x4407, 0x04, 0, 0}, {0x460b, 0x35, 0, 0}, {0x460c, 0x22, 0, 0},
> + {0x3824, 0x02, 0, 0}, {0x5001, 0xa3, 0, 0},
> +};
> +
> +static const struct reg_value ov5640_setting_30fps_720P_1280_720[] = {
> + {0x3008, 0x42, 0, 0},
> + {0x3035, 0x21, 0, 0}, {0x3036, 0x54, 0, 0}, {0x3c07, 0x07, 0, 0},
> + {0x3c09, 0x1c, 0, 0}, {0x3c0a, 0x9c, 0, 0}, {0x3c0b, 0x40, 0, 0},
> + {0x3820, 0x41, 0, 0}, {0x3821, 0x07, 0, 0}, {0x3814, 0x31, 0, 0},
> + {0x3815, 0x31, 0, 0}, {0x3800, 0x00, 0, 0}, {0x3801, 0x00, 0, 0},
> + {0x3802, 0x00, 0, 0}, {0x3803, 0xfa, 0, 0}, {0x3804, 0x0a, 0, 0},
> + {0x3805, 0x3f, 0, 0}, {0x3806, 0x06, 0, 0}, {0x3807, 0xa9, 0, 0},
> + {0x3808, 0x05, 0, 0}, {0x3809, 0x00, 0, 0}, {0x380a, 0x02, 0, 0},
> + {0x380b, 0xd0, 0, 0}, {0x380c, 0x07, 0, 0}, {0x380d, 0x64, 0, 0},
> + {0x380e, 0x02, 0, 0}, {0x380f, 0xe4, 0, 0}, {0x3810, 0x00, 0, 0},
> + {0x3811, 0x10, 0, 0}, {0x3812, 0x00, 0, 0}, {0x3813, 0x04, 0, 0},
> + {0x3618, 0x00, 0, 0}, {0x3612, 0x29, 0, 0}, {0x3708, 0x64, 0, 0},
> + {0x3709, 0x52, 0, 0}, {0x370c, 0x03, 0, 0}, {0x3a02, 0x02, 0, 0},
> + {0x3a03, 0xe4, 0, 0}, {0x3a08, 0x01, 0, 0}, {0x3a09, 0xbc, 0, 0},
> + {0x3a0a, 0x01, 0, 0}, {0x3a0b, 0x72, 0, 0}, {0x3a0e, 0x01, 0, 0},
> + {0x3a0d, 0x02, 0, 0}, {0x3a14, 0x02, 0, 0}, {0x3a15, 0xe4, 0, 0},
> + {0x4001, 0x02, 0, 0}, {0x4004, 0x02, 0, 0}, {0x4713, 0x02, 0, 0},
> + {0x4407, 0x04, 0, 0}, {0x460b, 0x37, 0, 0}, {0x460c, 0x20, 0, 0},
> + {0x3824, 0x04, 0, 0}, {0x5001, 0x83, 0, 0}, {0x4005, 0x1a, 0, 0},
> + {0x3008, 0x02, 0, 0}, {0x3503, 0, 0, 0},
> +};
> +
> +static const struct reg_value ov5640_setting_15fps_720P_1280_720[] = {
> + {0x3035, 0x41, 0, 0}, {0x3036, 0x54, 0, 0}, {0x3c07, 0x07, 0, 0},
> + {0x3c09, 0x1c, 0, 0}, {0x3c0a, 0x9c, 0, 0}, {0x3c0b, 0x40, 0, 0},
> + {0x3820, 0x41, 0, 0}, {0x3821, 0x07, 0, 0}, {0x3814, 0x31, 0, 0},
> + {0x3815, 0x31, 0, 0}, {0x3800, 0x00, 0, 0}, {0x3801, 0x00, 0, 0},
> + {0x3802, 0x00, 0, 0}, {0x3803, 0xfa, 0, 0}, {0x3804, 0x0a, 0, 0},
> + {0x3805, 0x3f, 0, 0}, {0x3806, 0x06, 0, 0}, {0x3807, 0xa9, 0, 0},
> + {0x3808, 0x05, 0, 0}, {0x3809, 0x00, 0, 0}, {0x380a, 0x02, 0, 0},
> + {0x380b, 0xd0, 0, 0}, {0x380c, 0x07, 0, 0}, {0x380d, 0x64, 0, 0},
> + {0x380e, 0x02, 0, 0}, {0x380f, 0xe4, 0, 0}, {0x3810, 0x00, 0, 0},
> + {0x3811, 0x10, 0, 0}, {0x3812, 0x00, 0, 0}, {0x3813, 0x04, 0, 0},
> + {0x3618, 0x00, 0, 0}, {0x3612, 0x29, 0, 0}, {0x3708, 0x64, 0, 0},
> + {0x3709, 0x52, 0, 0}, {0x370c, 0x03, 0, 0}, {0x3a02, 0x02, 0, 0},
> + {0x3a03, 0xe4, 0, 0}, {0x3a08, 0x01, 0, 0}, {0x3a09, 0xbc, 0, 0},
> + {0x3a0a, 0x01, 0, 0}, {0x3a0b, 0x72, 0, 0}, {0x3a0e, 0x01, 0, 0},
> + {0x3a0d, 0x02, 0, 0}, {0x3a14, 0x02, 0, 0}, {0x3a15, 0xe4, 0, 0},
> + {0x4001, 0x02, 0, 0}, {0x4004, 0x02, 0, 0}, {0x4713, 0x02, 0, 0},
> + {0x4407, 0x04, 0, 0}, {0x460b, 0x37, 0, 0}, {0x460c, 0x20, 0, 0},
> + {0x3824, 0x04, 0, 0}, {0x5001, 0x83, 0, 0},
> +};
> +
> +static const struct reg_value ov5640_setting_30fps_1080P_1920_1080[] = {
> + {0x3008, 0x42, 0, 0},
> + {0x3035, 0x21, 0, 0}, {0x3036, 0x54, 0, 0}, {0x3c07, 0x08, 0, 0},
> + {0x3c09, 0x1c, 0, 0}, {0x3c0a, 0x9c, 0, 0}, {0x3c0b, 0x40, 0, 0},
> + {0x3820, 0x40, 0, 0}, {0x3821, 0x06, 0, 0}, {0x3814, 0x11, 0, 0},
> + {0x3815, 0x11, 0, 0}, {0x3800, 0x00, 0, 0}, {0x3801, 0x00, 0, 0},
> + {0x3802, 0x00, 0, 0}, {0x3803, 0x00, 0, 0}, {0x3804, 0x0a, 0, 0},
> + {0x3805, 0x3f, 0, 0}, {0x3806, 0x07, 0, 0}, {0x3807, 0x9f, 0, 0},
> + {0x3808, 0x0a, 0, 0}, {0x3809, 0x20, 0, 0}, {0x380a, 0x07, 0, 0},
> + {0x380b, 0x98, 0, 0}, {0x380c, 0x0b, 0, 0}, {0x380d, 0x1c, 0, 0},
> + {0x380e, 0x07, 0, 0}, {0x380f, 0xb0, 0, 0}, {0x3810, 0x00, 0, 0},
> + {0x3811, 0x10, 0, 0}, {0x3812, 0x00, 0, 0}, {0x3813, 0x04, 0, 0},
> + {0x3618, 0x04, 0, 0}, {0x3612, 0x29, 0, 0}, {0x3708, 0x21, 0, 0},
> + {0x3709, 0x12, 0, 0}, {0x370c, 0x00, 0, 0}, {0x3a02, 0x03, 0, 0},
> + {0x3a03, 0xd8, 0, 0}, {0x3a08, 0x01, 0, 0}, {0x3a09, 0x27, 0, 0},
> + {0x3a0a, 0x00, 0, 0}, {0x3a0b, 0xf6, 0, 0}, {0x3a0e, 0x03, 0, 0},
> + {0x3a0d, 0x04, 0, 0}, {0x3a14, 0x03, 0, 0}, {0x3a15, 0xd8, 0, 0},
> + {0x4001, 0x02, 0, 0}, {0x4004, 0x06, 0, 0}, {0x4713, 0x03, 0, 0},
> + {0x4407, 0x04, 0, 0}, {0x460b, 0x35, 0, 0}, {0x460c, 0x22, 0, 0},
> + {0x3824, 0x02, 0, 0}, {0x5001, 0x83, 0, 0}, {0x3035, 0x11, 0, 0},
> + {0x3036, 0x54, 0, 0}, {0x3c07, 0x07, 0, 0}, {0x3c08, 0x00, 0, 0},
> + {0x3c09, 0x1c, 0, 0}, {0x3c0a, 0x9c, 0, 0}, {0x3c0b, 0x40, 0, 0},
> + {0x3800, 0x01, 0, 0}, {0x3801, 0x50, 0, 0}, {0x3802, 0x01, 0, 0},
> + {0x3803, 0xb2, 0, 0}, {0x3804, 0x08, 0, 0}, {0x3805, 0xef, 0, 0},
> + {0x3806, 0x05, 0, 0}, {0x3807, 0xf1, 0, 0}, {0x3808, 0x07, 0, 0},
> + {0x3809, 0x80, 0, 0}, {0x380a, 0x04, 0, 0}, {0x380b, 0x38, 0, 0},
> + {0x380c, 0x09, 0, 0}, {0x380d, 0xc4, 0, 0}, {0x380e, 0x04, 0, 0},
> + {0x380f, 0x60, 0, 0}, {0x3612, 0x2b, 0, 0}, {0x3708, 0x64, 0, 0},
> + {0x3a02, 0x04, 0, 0}, {0x3a03, 0x60, 0, 0}, {0x3a08, 0x01, 0, 0},
> + {0x3a09, 0x50, 0, 0}, {0x3a0a, 0x01, 0, 0}, {0x3a0b, 0x18, 0, 0},
> + {0x3a0e, 0x03, 0, 0}, {0x3a0d, 0x04, 0, 0}, {0x3a14, 0x04, 0, 0},
> + {0x3a15, 0x60, 0, 0}, {0x4713, 0x02, 0, 0}, {0x4407, 0x04, 0, 0},
> + {0x460b, 0x37, 0, 0}, {0x460c, 0x20, 0, 0}, {0x3824, 0x04, 0, 0},
> + {0x4005, 0x1a, 0, 0}, {0x3008, 0x02, 0, 0},
> + {0x3503, 0, 0, 0},
> +};
> +
> +static const struct reg_value ov5640_setting_15fps_1080P_1920_1080[] = {
> + {0x3008, 0x42, 0, 0},
> + {0x3035, 0x21, 0, 0}, {0x3036, 0x54, 0, 0}, {0x3c07, 0x08, 0, 0},
> + {0x3c09, 0x1c, 0, 0}, {0x3c0a, 0x9c, 0, 0}, {0x3c0b, 0x40, 0, 0},
> + {0x3820, 0x40, 0, 0}, {0x3821, 0x06, 0, 0}, {0x3814, 0x11, 0, 0},
> + {0x3815, 0x11, 0, 0}, {0x3800, 0x00, 0, 0}, {0x3801, 0x00, 0, 0},
> + {0x3802, 0x00, 0, 0}, {0x3803, 0x00, 0, 0}, {0x3804, 0x0a, 0, 0},
> + {0x3805, 0x3f, 0, 0}, {0x3806, 0x07, 0, 0}, {0x3807, 0x9f, 0, 0},
> + {0x3808, 0x0a, 0, 0}, {0x3809, 0x20, 0, 0}, {0x380a, 0x07, 0, 0},
> + {0x380b, 0x98, 0, 0}, {0x380c, 0x0b, 0, 0}, {0x380d, 0x1c, 0, 0},
> + {0x380e, 0x07, 0, 0}, {0x380f, 0xb0, 0, 0}, {0x3810, 0x00, 0, 0},
> + {0x3811, 0x10, 0, 0}, {0x3812, 0x00, 0, 0}, {0x3813, 0x04, 0, 0},
> + {0x3618, 0x04, 0, 0}, {0x3612, 0x29, 0, 0}, {0x3708, 0x21, 0, 0},
> + {0x3709, 0x12, 0, 0}, {0x370c, 0x00, 0, 0}, {0x3a02, 0x03, 0, 0},
> + {0x3a03, 0xd8, 0, 0}, {0x3a08, 0x01, 0, 0}, {0x3a09, 0x27, 0, 0},
> + {0x3a0a, 0x00, 0, 0}, {0x3a0b, 0xf6, 0, 0}, {0x3a0e, 0x03, 0, 0},
> + {0x3a0d, 0x04, 0, 0}, {0x3a14, 0x03, 0, 0}, {0x3a15, 0xd8, 0, 0},
> + {0x4001, 0x02, 0, 0}, {0x4004, 0x06, 0, 0}, {0x4713, 0x03, 0, 0},
> + {0x4407, 0x04, 0, 0}, {0x460b, 0x35, 0, 0}, {0x460c, 0x22, 0, 0},
> + {0x3824, 0x02, 0, 0}, {0x5001, 0x83, 0, 0}, {0x3035, 0x21, 0, 0},
> + {0x3036, 0x54, 0, 1}, {0x3c07, 0x07, 0, 0}, {0x3c08, 0x00, 0, 0},
> + {0x3c09, 0x1c, 0, 0}, {0x3c0a, 0x9c, 0, 0}, {0x3c0b, 0x40, 0, 0},
> + {0x3800, 0x01, 0, 0}, {0x3801, 0x50, 0, 0}, {0x3802, 0x01, 0, 0},
> + {0x3803, 0xb2, 0, 0}, {0x3804, 0x08, 0, 0}, {0x3805, 0xef, 0, 0},
> + {0x3806, 0x05, 0, 0}, {0x3807, 0xf1, 0, 0}, {0x3808, 0x07, 0, 0},
> + {0x3809, 0x80, 0, 0}, {0x380a, 0x04, 0, 0}, {0x380b, 0x38, 0, 0},
> + {0x380c, 0x09, 0, 0}, {0x380d, 0xc4, 0, 0}, {0x380e, 0x04, 0, 0},
> + {0x380f, 0x60, 0, 0}, {0x3612, 0x2b, 0, 0}, {0x3708, 0x64, 0, 0},
> + {0x3a02, 0x04, 0, 0}, {0x3a03, 0x60, 0, 0}, {0x3a08, 0x01, 0, 0},
> + {0x3a09, 0x50, 0, 0}, {0x3a0a, 0x01, 0, 0}, {0x3a0b, 0x18, 0, 0},
> + {0x3a0e, 0x03, 0, 0}, {0x3a0d, 0x04, 0, 0}, {0x3a14, 0x04, 0, 0},
> + {0x3a15, 0x60, 0, 0}, {0x4713, 0x02, 0, 0}, {0x4407, 0x04, 0, 0},
> + {0x460b, 0x37, 0, 0}, {0x460c, 0x20, 0, 0}, {0x3824, 0x04, 0, 0},
> + {0x4005, 0x1a, 0, 0}, {0x3008, 0x02, 0, 0}, {0x3503, 0, 0, 0},
> +};
> +
> +static const struct reg_value ov5640_setting_15fps_QSXGA_2592_1944[] = {
> + {0x3820, 0x40, 0, 0}, {0x3821, 0x06, 0, 0},
> + {0x3035, 0x21, 0, 0}, {0x3036, 0x54, 0, 0}, {0x3c07, 0x08, 0, 0},
> + {0x3c09, 0x1c, 0, 0}, {0x3c0a, 0x9c, 0, 0}, {0x3c0b, 0x40, 0, 0},
> + {0x3820, 0x40, 0, 0}, {0x3821, 0x06, 0, 0}, {0x3814, 0x11, 0, 0},
> + {0x3815, 0x11, 0, 0}, {0x3800, 0x00, 0, 0}, {0x3801, 0x00, 0, 0},
> + {0x3802, 0x00, 0, 0}, {0x3803, 0x00, 0, 0}, {0x3804, 0x0a, 0, 0},
> + {0x3805, 0x3f, 0, 0}, {0x3806, 0x07, 0, 0}, {0x3807, 0x9f, 0, 0},
> + {0x3808, 0x0a, 0, 0}, {0x3809, 0x20, 0, 0}, {0x380a, 0x07, 0, 0},
> + {0x380b, 0x98, 0, 0}, {0x380c, 0x0b, 0, 0}, {0x380d, 0x1c, 0, 0},
> + {0x380e, 0x07, 0, 0}, {0x380f, 0xb0, 0, 0}, {0x3810, 0x00, 0, 0},
> + {0x3811, 0x10, 0, 0}, {0x3812, 0x00, 0, 0}, {0x3813, 0x04, 0, 0},
> + {0x3618, 0x04, 0, 0}, {0x3612, 0x29, 0, 0}, {0x3708, 0x21, 0, 0},
> + {0x3709, 0x12, 0, 0}, {0x370c, 0x00, 0, 0}, {0x3a02, 0x03, 0, 0},
> + {0x3a03, 0xd8, 0, 0}, {0x3a08, 0x01, 0, 0}, {0x3a09, 0x27, 0, 0},
> + {0x3a0a, 0x00, 0, 0}, {0x3a0b, 0xf6, 0, 0}, {0x3a0e, 0x03, 0, 0},
> + {0x3a0d, 0x04, 0, 0}, {0x3a14, 0x03, 0, 0}, {0x3a15, 0xd8, 0, 0},
> + {0x4001, 0x02, 0, 0}, {0x4004, 0x06, 0, 0}, {0x4713, 0x03, 0, 0},
> + {0x4407, 0x04, 0, 0}, {0x460b, 0x35, 0, 0}, {0x460c, 0x22, 0, 0},
> + {0x3824, 0x02, 0, 0}, {0x5001, 0x83, 0, 70},
> +};
> +
> +/* power-on sensor init reg table */
> +static const struct ov5640_mode_info ov5640_mode_init_data = {
> + 0, SUBSAMPLING, 640, 480, ov5640_init_setting_30fps_VGA,
> + ARRAY_SIZE(ov5640_init_setting_30fps_VGA),
> +};
> +
> +static const struct ov5640_mode_info
> +ov5640_mode_data[OV5640_NUM_FRAMERATES][OV5640_NUM_MODES] = {
> + {
> + {OV5640_MODE_QCIF_176_144, SUBSAMPLING, 176, 144,
> + ov5640_setting_15fps_QCIF_176_144,
> + ARRAY_SIZE(ov5640_setting_15fps_QCIF_176_144)},
> + {OV5640_MODE_QVGA_320_240, SUBSAMPLING, 320, 240,
> + ov5640_setting_15fps_QVGA_320_240,
> + ARRAY_SIZE(ov5640_setting_15fps_QVGA_320_240)},
> + {OV5640_MODE_VGA_640_480, SUBSAMPLING, 640, 480,
> + ov5640_setting_15fps_VGA_640_480,
> + ARRAY_SIZE(ov5640_setting_15fps_VGA_640_480)},
> + {OV5640_MODE_NTSC_720_480, SUBSAMPLING, 720, 480,
> + ov5640_setting_15fps_NTSC_720_480,
> + ARRAY_SIZE(ov5640_setting_15fps_NTSC_720_480)},
> + {OV5640_MODE_PAL_720_576, SUBSAMPLING, 720, 576,
> + ov5640_setting_15fps_PAL_720_576,
> + ARRAY_SIZE(ov5640_setting_15fps_PAL_720_576)},
> + {OV5640_MODE_XGA_1024_768, SUBSAMPLING, 1024, 768,
> + ov5640_setting_15fps_XGA_1024_768,
> + ARRAY_SIZE(ov5640_setting_15fps_XGA_1024_768)},
> + {OV5640_MODE_720P_1280_720, SUBSAMPLING, 1280, 720,
> + ov5640_setting_15fps_720P_1280_720,
> + ARRAY_SIZE(ov5640_setting_15fps_720P_1280_720)},
> + {OV5640_MODE_1080P_1920_1080, SCALING, 1920, 1080,
> + ov5640_setting_15fps_1080P_1920_1080,
> + ARRAY_SIZE(ov5640_setting_15fps_1080P_1920_1080)},
> + {OV5640_MODE_QSXGA_2592_1944, SCALING, 2592, 1944,
> + ov5640_setting_15fps_QSXGA_2592_1944,
> + ARRAY_SIZE(ov5640_setting_15fps_QSXGA_2592_1944)},
> + }, {
> + {OV5640_MODE_QCIF_176_144, SUBSAMPLING, 176, 144,
> + ov5640_setting_30fps_QCIF_176_144,
> + ARRAY_SIZE(ov5640_setting_30fps_QCIF_176_144)},
> + {OV5640_MODE_QVGA_320_240, SUBSAMPLING, 320, 240,
> + ov5640_setting_30fps_QVGA_320_240,
> + ARRAY_SIZE(ov5640_setting_30fps_QVGA_320_240)},
> + {OV5640_MODE_VGA_640_480, SUBSAMPLING, 640, 480,
> + ov5640_setting_30fps_VGA_640_480,
> + ARRAY_SIZE(ov5640_setting_30fps_VGA_640_480)},
> + {OV5640_MODE_NTSC_720_480, SUBSAMPLING, 720, 480,
> + ov5640_setting_30fps_NTSC_720_480,
> + ARRAY_SIZE(ov5640_setting_30fps_NTSC_720_480)},
> + {OV5640_MODE_PAL_720_576, SUBSAMPLING, 720, 576,
> + ov5640_setting_30fps_PAL_720_576,
> + ARRAY_SIZE(ov5640_setting_30fps_PAL_720_576)},
> + {OV5640_MODE_XGA_1024_768, SUBSAMPLING, 1024, 768,
> + ov5640_setting_30fps_XGA_1024_768,
> + ARRAY_SIZE(ov5640_setting_30fps_XGA_1024_768)},
> + {OV5640_MODE_720P_1280_720, SUBSAMPLING, 1280, 720,
> + ov5640_setting_30fps_720P_1280_720,
> + ARRAY_SIZE(ov5640_setting_30fps_720P_1280_720)},
> + {OV5640_MODE_1080P_1920_1080, SCALING, 1920, 1080,
> + ov5640_setting_30fps_1080P_1920_1080,
> + ARRAY_SIZE(ov5640_setting_30fps_1080P_1920_1080)},
> + {OV5640_MODE_QSXGA_2592_1944, -1, 0, 0, NULL, 0},
> + },
> +};
> +
> +static int ov5640_init_slave_id(struct ov5640_dev *sensor)
> +{
> + struct i2c_client *client = sensor->i2c_client;
> + struct i2c_msg msg;
> + u8 buf[3];
> + int ret;
> +
> + if (client->addr == OV5640_DEFAULT_SLAVE_ID)
> + return 0;
> +
> + buf[0] = OV5640_REG_SLAVE_ID >> 8;
> + buf[1] = OV5640_REG_SLAVE_ID & 0xff;
> + buf[2] = client->addr << 1;
> +
> + msg.addr = OV5640_DEFAULT_SLAVE_ID;
> + msg.flags = 0;
> + msg.buf = buf;
> + msg.len = sizeof(buf);
> +
> + ret = i2c_transfer(client->adapter, &msg, 1);
> + if (ret < 0) {
> + dev_err(&client->dev, "%s: failed with %d\n", __func__, ret);
> + return ret;
> + }
> +
> + return 0;
> +}
> +
> +static int ov5640_write_reg(struct ov5640_dev *sensor, u16 reg, u8 val)
> +{
> + struct i2c_client *client = sensor->i2c_client;
> + struct i2c_msg msg;
> + u8 buf[3];
> + int ret;
> +
> + buf[0] = reg >> 8;
> + buf[1] = reg & 0xff;
> + buf[2] = val;
> +
> + msg.addr = client->addr;
> + msg.flags = client->flags;
> + msg.buf = buf;
> + msg.len = sizeof(buf);
> +
> + ret = i2c_transfer(client->adapter, &msg, 1);
> + if (ret < 0) {
> + v4l2_err(&sensor->sd, "%s: error: reg=%x, val=%x\n",
> + __func__, reg, val);
> + return ret;
> + }
> +
> + return 0;
> +}
> +
> +static int ov5640_read_reg(struct ov5640_dev *sensor, u16 reg, u8 *val)
> +{
> + struct i2c_client *client = sensor->i2c_client;
> + struct i2c_msg msg[2];
> + u8 buf[2];
> + int ret;
> +
> + buf[0] = reg >> 8;
> + buf[1] = reg & 0xff;
> +
> + msg[0].addr = client->addr;
> + msg[0].flags = client->flags;
> + msg[0].buf = buf;
> + msg[0].len = sizeof(buf);
> +
> + msg[1].addr = client->addr;
> + msg[1].flags = client->flags | I2C_M_RD;
> + msg[1].buf = buf;
> + msg[1].len = 1;
> +
> + ret = i2c_transfer(client->adapter, msg, 2);
> + if (ret < 0)
> + return ret;
> +
> + *val = buf[0];
> + return 0;
> +}
> +
> +static int ov5640_read_reg16(struct ov5640_dev *sensor, u16 reg, u16 *val)
> +{
> + u8 hi, lo;
> + int ret;
> +
> + ret = ov5640_read_reg(sensor, reg, &hi);
> + if (ret)
> + return ret;
> + ret = ov5640_read_reg(sensor, reg+1, &lo);
> + if (ret)
> + return ret;
> +
> + *val = ((u16)hi << 8) | (u16)lo;
> + return 0;
> +}
> +
> +static int ov5640_write_reg16(struct ov5640_dev *sensor, u16 reg, u16 val)
> +{
> + int ret;
> +
> + ret = ov5640_write_reg(sensor, reg, val >> 8);
> + if (ret)
> + return ret;
> +
> + return ov5640_write_reg(sensor, reg + 1, val & 0xff);

Does the sensor datasheet suggest doing this? Making the write in two
transactions will make it non-atomic that could be an issue in some corner
cases.

> +}
> +
> +static int ov5640_mod_reg(struct ov5640_dev *sensor, u16 reg,
> + u8 mask, u8 val)
> +{
> + u8 readval;
> + int ret;
> +
> + ret = ov5640_read_reg(sensor, reg, &readval);
> + if (ret)
> + return ret;
> +
> + readval &= ~mask;
> + val &= mask;
> + val |= readval;
> +
> + return ov5640_write_reg(sensor, reg, val);
> +}
> +
> +/* download ov5640 settings to sensor through i2c */
> +static int ov5640_load_regs(struct ov5640_dev *sensor,
> + const struct ov5640_mode_info *mode)
> +{
> + const struct reg_value *regs = mode->reg_data;
> + unsigned int i;
> + u32 delay_ms;
> + u16 reg_addr;
> + u8 mask, val;
> + int ret = 0;
> +
> + for (i = 0; i < mode->reg_data_size; ++i, ++regs) {
> + delay_ms = regs->delay_ms;
> + reg_addr = regs->reg_addr;
> + val = regs->val;
> + mask = regs->mask;
> +
> + if (mask)
> + ret = ov5640_mod_reg(sensor, reg_addr, mask, val);
> + else
> + ret = ov5640_write_reg(sensor, reg_addr, val);
> + if (ret)
> + break;
> +
> + if (delay_ms)
> + usleep_range(1000*delay_ms, 1000*delay_ms+100);
> + }
> +
> + return ret;
> +}
> +
> +static int ov5640_set_hue(struct ov5640_dev *sensor, int value)
> +{
> + if (value) {
> + ov5640_mod_reg(sensor, OV5640_REG_SDE_CTRL0, BIT(0), BIT(0));
> + ov5640_write_reg16(sensor, OV5640_REG_SDE_CTRL1, value);
> + } else {
> + ov5640_mod_reg(sensor, OV5640_REG_SDE_CTRL0, BIT(0), 0);
> + }
> +
> + return 0;
> +}
> +
> +static int ov5640_set_contrast(struct ov5640_dev *sensor, int value)
> +{
> + if (value) {
> + ov5640_mod_reg(sensor, OV5640_REG_SDE_CTRL0, BIT(2), BIT(2));
> + ov5640_write_reg(sensor, OV5640_REG_SDE_CTRL5, value & 0xff);
> + } else {
> + ov5640_mod_reg(sensor, OV5640_REG_SDE_CTRL0, BIT(2), 0);
> + }
> +
> + return 0;
> +}
> +
> +static int ov5640_set_saturation(struct ov5640_dev *sensor, int value)
> +{
> + if (value) {
> + ov5640_mod_reg(sensor, OV5640_REG_SDE_CTRL0, BIT(1), BIT(1));
> + ov5640_write_reg(sensor, OV5640_REG_SDE_CTRL3, value & 0xff);
> + ov5640_write_reg(sensor, OV5640_REG_SDE_CTRL4, value & 0xff);
> + } else {
> + ov5640_mod_reg(sensor, OV5640_REG_SDE_CTRL0, BIT(1), 0);
> + }
> +
> + return 0;
> +}
> +
> +static int ov5640_set_white_balance(struct ov5640_dev *sensor, int awb)
> +{
> + ov5640_mod_reg(sensor, OV5640_REG_AWB_MANUAL_CTRL,
> + BIT(0), awb ? 0 : 1);
> +
> + if (!awb) {
> + u16 red = (u16)sensor->ctrls.red_balance->val;
> + u16 blue = (u16)sensor->ctrls.blue_balance->val;
> +
> + ov5640_write_reg16(sensor, OV5640_REG_AWB_R_GAIN, red);
> + ov5640_write_reg16(sensor, OV5640_REG_AWB_B_GAIN, blue);
> + }
> +
> + return 0;
> +}
> +
> +static int ov5640_set_exposure(struct ov5640_dev *sensor, int exp)
> +{
> + struct ov5640_ctrls *ctrls = &sensor->ctrls;
> + bool auto_exposure = (exp == V4L2_EXPOSURE_AUTO);
> +
> + if (ctrls->auto_exp->is_new) {
> + ov5640_mod_reg(sensor, OV5640_REG_AEC_PK_MANUAL,
> + BIT(0), auto_exposure ? 0 : BIT(0));
> + }
> +
> + if (!auto_exposure && ctrls->exposure->is_new) {
> + u16 max_exp;
> +
> + ov5640_read_reg16(sensor, OV5640_REG_AEC_PK_VTS, &max_exp);
> + if (ctrls->exposure->val < max_exp) {
> + u32 exposure = ctrls->exposure->val << 4;
> +
> + ov5640_write_reg(sensor, OV5640_REG_AEC_PK_EXPOSURE_LO,
> + exposure & 0xff);
> + ov5640_write_reg(sensor, OV5640_REG_AEC_PK_EXPOSURE_MED,
> + (exposure >> 8) & 0xff);
> + ov5640_write_reg(sensor, OV5640_REG_AEC_PK_EXPOSURE_HI,
> + (exposure >> 16) & 0x0f);
> + }
> + }
> +
> + return 0;
> +}
> +
> +/* read exposure, in number of line periods */
> +static int ov5640_get_exposure(struct ov5640_dev *sensor)
> +{
> + u8 temp;
> + int exp;
> +
> + ov5640_read_reg(sensor, OV5640_REG_AEC_PK_EXPOSURE_HI, &temp);
> + exp = ((int)temp & 0x0f) << 16;
> + ov5640_read_reg(sensor, OV5640_REG_AEC_PK_EXPOSURE_MED, &temp);
> + exp |= ((int)temp << 8);
> + ov5640_read_reg(sensor, OV5640_REG_AEC_PK_EXPOSURE_LO, &temp);
> + exp |= (int)temp;
> +
> + return exp >> 4;
> +}
> +
> +static int ov5640_set_gain(struct ov5640_dev *sensor, int auto_gain)
> +{
> + struct ov5640_ctrls *ctrls = &sensor->ctrls;
> +
> + if (ctrls->auto_gain->is_new) {
> + ov5640_mod_reg(sensor, OV5640_REG_AEC_PK_MANUAL,
> + BIT(1), ctrls->auto_gain->val ? 0 : BIT(1));

You're generally silently ignoring all I²C access errors. Is that
intentional?

> + }
> +
> + if (!auto_gain && ctrls->gain->is_new) {
> + u16 gain = (u16)ctrls->gain->val;
> +
> + ov5640_write_reg16(sensor, OV5640_REG_AEC_PK_REAL_GAIN,
> + gain & 0x3ff);
> + }
> +
> + return 0;
> +}
> +
> +static int ov5640_get_gain(struct ov5640_dev *sensor)
> +{
> + u16 gain;
> +
> + ov5640_read_reg16(sensor, OV5640_REG_AEC_PK_REAL_GAIN, &gain);
> +
> + return gain & 0x3ff;
> +}
> +
> +static int ov5640_set_agc_aec(struct ov5640_dev *sensor, bool on)
> +{
> + ov5640_mod_reg(sensor, OV5640_REG_AEC_PK_MANUAL,
> + 0x3, on ? 0 : 0x3);
> + return 0;
> +}
> +
> +static int ov5640_set_test_pattern(struct ov5640_dev *sensor, int value)
> +{
> + ov5640_mod_reg(sensor, OV5640_REG_PRE_ISP_TEST_SET1,
> + 0xa4, value ? 0xa4 : 0);
> + return 0;
> +}
> +
> +static int ov5640_set_stream(struct ov5640_dev *sensor, bool on)
> +{
> + ov5640_mod_reg(sensor, OV5640_REG_MIPI_CTRL00, BIT(5),
> + on ? 0 : BIT(5));
> + ov5640_write_reg(sensor, OV5640_REG_PAD_OUTPUT00,
> + on ? 0x00 : 0x70);
> + ov5640_write_reg(sensor, OV5640_REG_FRAME_CTRL01,
> + on ? 0x00 : 0x0f);
> + return 0;
> +}
> +
> +static int ov5640_get_sysclk(struct ov5640_dev *sensor)
> +{
> + /* calculate sysclk */
> + u32 xvclk = sensor->xclk_freq / 10000;
> + u32 multiplier, prediv, VCO, sysdiv, pll_rdiv;
> + u32 sclk_rdiv_map[] = {1, 2, 4, 8};
> + u32 bit_div2x = 1, sclk_rdiv, sysclk;
> + u8 temp1, temp2;
> +
> + ov5640_read_reg(sensor, OV5640_REG_SC_PLL_CTRL0, &temp1);
> + temp2 = temp1 & 0x0f;
> + if (temp2 == 8 || temp2 == 10)
> + bit_div2x = temp2 / 2;
> +
> + ov5640_read_reg(sensor, OV5640_REG_SC_PLL_CTRL1, &temp1);
> + sysdiv = temp1 >> 4;
> + if (sysdiv == 0)
> + sysdiv = 16;
> +
> + ov5640_read_reg(sensor, OV5640_REG_SC_PLL_CTRL2, &temp1);
> + multiplier = temp1;
> +
> + ov5640_read_reg(sensor, OV5640_REG_SC_PLL_CTRL3, &temp1);
> + prediv = temp1 & 0x0f;
> + pll_rdiv = ((temp1 >> 4) & 0x01) + 1;
> +
> + ov5640_read_reg(sensor, OV5640_REG_SYS_ROOT_DIVIDER, &temp1);
> + temp2 = temp1 & 0x03;
> + sclk_rdiv = sclk_rdiv_map[temp2];
> +
> + if (!prediv || !sysdiv || !pll_rdiv || !bit_div2x)
> + return -EINVAL;
> +
> + VCO = xvclk * multiplier / prediv;
> +
> + sysclk = VCO / sysdiv / pll_rdiv * 2 / bit_div2x / sclk_rdiv;
> +
> + return sysclk;
> +}
> +
> +static int ov5640_set_night_mode(struct ov5640_dev *sensor)
> +{
> + /* read HTS from register settings */
> + u8 mode;
> +
> + ov5640_read_reg(sensor, OV5640_REG_AEC_CTRL00, &mode);
> + mode &= 0xfb;
> + ov5640_write_reg(sensor, OV5640_REG_AEC_CTRL00, mode);
> + return 0;
> +}
> +
> +static int ov5640_get_hts(struct ov5640_dev *sensor)
> +{
> + /* read HTS from register settings */
> + u16 hts;
> +
> + ov5640_read_reg16(sensor, OV5640_REG_TIMING_HTS, &hts);
> + return hts;
> +}
> +
> +static int ov5640_get_vts(struct ov5640_dev *sensor)
> +{
> + u16 vts;
> +
> + ov5640_read_reg16(sensor, OV5640_REG_TIMING_VTS, &vts);
> + return vts;
> +}
> +
> +static int ov5640_set_vts(struct ov5640_dev *sensor, int vts)
> +{
> + ov5640_write_reg16(sensor, OV5640_REG_TIMING_VTS, vts);
> + return 0;
> +}
> +
> +static int ov5640_get_light_freq(struct ov5640_dev *sensor)
> +{
> + /* get banding filter value */
> + u8 temp, temp1;
> + int light_freq = 0;
> +
> + ov5640_read_reg(sensor, OV5640_REG_HZ5060_CTRL01, &temp);
> +
> + if (temp & 0x80) {
> + /* manual */
> + ov5640_read_reg(sensor, OV5640_REG_HZ5060_CTRL00, &temp1);
> + if (temp1 & 0x04) {
> + /* 50Hz */
> + light_freq = 50;
> + } else {
> + /* 60Hz */
> + light_freq = 60;
> + }
> + } else {
> + /* auto */
> + ov5640_read_reg(sensor, OV5640_REG_SIGMADELTA_CTRL0C,
> + &temp1);
> + if (temp1 & 0x01) {
> + /* 50Hz */
> + light_freq = 50;
> + } else {
> + /* 60Hz */
> + }
> + }
> +
> + return light_freq;
> +}
> +
> +static int ov5640_set_bandingfilter(struct ov5640_dev *sensor)
> +{
> + u32 band_step60, max_band60, band_step50, max_band50, prev_vts;
> + int ret;
> +
> + /* read preview PCLK */
> + ret = ov5640_get_sysclk(sensor);
> + if (ret < 0)
> + return ret;
> + if (ret == 0)
> + return -EINVAL;
> + sensor->prev_sysclk = ret;
> + /* read preview HTS */
> + ret = ov5640_get_hts(sensor);
> + if (ret < 0)
> + return ret;
> + if (ret == 0)
> + return -EINVAL;
> + sensor->prev_hts = ret;
> +
> + /* read preview VTS */
> + ret = ov5640_get_vts(sensor);
> + if (ret < 0)
> + return ret;
> + prev_vts = ret;
> +
> +
> + /* calculate banding filter */
> + /* 60Hz */
> + band_step60 = sensor->prev_sysclk * 100 / sensor->prev_hts * 100 / 120;
> + ov5640_write_reg16(sensor, OV5640_REG_AEC_B60_STEP, band_step60);
> + if (!band_step60)
> + return -EINVAL;
> + max_band60 = (int)((prev_vts - 4) / band_step60);
> + ov5640_write_reg(sensor, OV5640_REG_AEC_CTRL0D, max_band60);
> +
> + /* 50Hz */
> + band_step50 = sensor->prev_sysclk * 100 / sensor->prev_hts;
> + ov5640_write_reg16(sensor, OV5640_REG_AEC_B50_STEP, band_step50);
> + if (!band_step50)
> + return -EINVAL;
> + max_band50 = (int)((prev_vts - 4) / band_step50);
> + ov5640_write_reg(sensor, OV5640_REG_AEC_CTRL0E, max_band50);
> +
> + return 0;
> +}
> +
> +static int ov5640_set_ae_target(struct ov5640_dev *sensor, int target)
> +{
> + /* stable in high */
> + u32 fast_high, fast_low;
> +
> + sensor->ae_low = target * 23 / 25; /* 0.92 */
> + sensor->ae_high = target * 27 / 25; /* 1.08 */
> +
> + fast_high = sensor->ae_high << 1;
> + if (fast_high > 255)
> + fast_high = 255;
> +
> + fast_low = sensor->ae_low >> 1;
> +
> + ov5640_write_reg(sensor, OV5640_REG_AEC_CTRL0F, sensor->ae_high);
> + ov5640_write_reg(sensor, OV5640_REG_AEC_CTRL10, sensor->ae_low);
> + ov5640_write_reg(sensor, OV5640_REG_AEC_CTRL1B, sensor->ae_high);
> + ov5640_write_reg(sensor, OV5640_REG_AEC_CTRL1E, sensor->ae_low);
> + ov5640_write_reg(sensor, OV5640_REG_AEC_CTRL11, fast_high);
> + ov5640_write_reg(sensor, OV5640_REG_AEC_CTRL1F, fast_low);
> +
> + return 0;
> +}
> +
> +static int ov5640_binning_on(struct ov5640_dev *sensor)
> +{
> + u8 temp;
> +
> + ov5640_read_reg(sensor, OV5640_REG_TIMING_TC_REG21, &temp);
> + temp &= 0xfe;
> +
> + return temp ? 1 : 0;
> +}
> +
> +static int ov5640_set_virtual_channel(struct ov5640_dev *sensor)
> +{
> + u8 temp, channel = OV5640_MIPI_VC;
> +
> + ov5640_read_reg(sensor, OV5640_REG_DEBUG_MODE, &temp);
> + temp &= ~(3 << 6);
> + temp |= (channel << 6);
> + ov5640_write_reg(sensor, OV5640_REG_DEBUG_MODE, temp);
> +
> + return 0;
> +}
> +
> +static const struct ov5640_mode_info *
> +ov5640_find_mode(struct ov5640_dev *sensor, enum ov5640_frame_rate fr,
> + int width, int height, bool nearest)
> +{
> + const struct ov5640_mode_info *mode = NULL;
> + int i;
> +
> + for (i = OV5640_NUM_MODES - 1; i >= 0; i--) {
> + mode = &ov5640_mode_data[fr][i];
> +
> + if (!mode->reg_data)
> + continue;
> +
> + if ((nearest && mode->width <= width &&
> + mode->height <= height) ||
> + (!nearest && mode->width == width &&
> + mode->height == height))
> + break;
> + }
> +
> + if (nearest && i < 0)
> + mode = &ov5640_mode_data[fr][0];
> +
> + return mode;
> +}
> +
> +/*
> + * sensor changes between scaling and subsampling, go through
> + * exposure calculation
> + */
> +static int ov5640_set_mode_exposure_calc(
> + struct ov5640_dev *sensor, const struct ov5640_mode_info *mode)
> +{
> + u32 prev_shutter, prev_gain16;
> + u32 cap_shutter, cap_gain16;
> + u32 cap_sysclk, cap_hts, cap_vts;
> + u32 light_freq, cap_bandfilt, cap_maxband;
> + u32 cap_gain16_shutter;
> + u8 average;
> + int ret;
> +
> + if (mode->reg_data == NULL)
> + return -EINVAL;
> +
> + /* turn off AE/AG */
> + ret = ov5640_set_agc_aec(sensor, false);
> + if (ret < 0)
> + return ret;
> +
> + /* read preview shutter */
> + ret = ov5640_get_exposure(sensor);
> + if (ret < 0)
> + return ret;
> + prev_shutter = ret;
> + ret = ov5640_binning_on(sensor);
> + if (ret < 0)
> + return ret;
> + if (ret && mode->id != OV5640_MODE_720P_1280_720 &&
> + mode->id != OV5640_MODE_1080P_1920_1080)
> + prev_shutter *= 2;
> +
> + /* read preview gain */
> + ret = ov5640_get_gain(sensor);
> + if (ret < 0)
> + return ret;
> + prev_gain16 = ret;
> +
> + /* get average */
> + ov5640_read_reg(sensor, OV5640_REG_AVG_READOUT, &average);
> +
> + /* turn off night mode for capture */
> + ret = ov5640_set_night_mode(sensor);
> + if (ret < 0)
> + return ret;
> +
> + /* Write capture setting */
> + ret = ov5640_load_regs(sensor, mode);
> + if (ret < 0)
> + return ret;
> +
> + /* read capture VTS */
> + ret = ov5640_get_vts(sensor);
> + if (ret < 0)
> + return ret;
> + cap_vts = ret;
> + ret = ov5640_get_hts(sensor);
> + if (ret < 0)
> + return ret;
> + if (ret == 0)
> + return -EINVAL;
> + cap_hts = ret;
> +
> + ret = ov5640_get_sysclk(sensor);
> + if (ret < 0)
> + return ret;
> + if (ret == 0)
> + return -EINVAL;
> + cap_sysclk = ret;
> +
> + /* calculate capture banding filter */
> + ret = ov5640_get_light_freq(sensor);
> + if (ret < 0)
> + return ret;
> + light_freq = ret;
> +
> + if (light_freq == 60) {
> + /* 60Hz */
> + cap_bandfilt = cap_sysclk * 100 / cap_hts * 100 / 120;
> + } else {
> + /* 50Hz */
> + cap_bandfilt = cap_sysclk * 100 / cap_hts;
> + }
> +
> + if (!sensor->prev_sysclk) {
> + ret = ov5640_get_sysclk(sensor);
> + if (ret < 0)
> + return ret;
> + if (ret == 0)
> + return -EINVAL;
> + sensor->prev_sysclk = ret;
> + }
> +
> + if (!cap_bandfilt)
> + return -EINVAL;
> +
> + cap_maxband = (int)((cap_vts - 4) / cap_bandfilt);
> +
> + /* calculate capture shutter/gain16 */
> + if (average > sensor->ae_low && average < sensor->ae_high) {
> + /* in stable range */
> + cap_gain16_shutter =
> + prev_gain16 * prev_shutter *
> + cap_sysclk / sensor->prev_sysclk *
> + sensor->prev_hts / cap_hts *
> + sensor->ae_target / average;
> + } else {
> + cap_gain16_shutter =
> + prev_gain16 * prev_shutter *
> + cap_sysclk / sensor->prev_sysclk *
> + sensor->prev_hts / cap_hts;
> + }
> +
> + /* gain to shutter */
> + if (cap_gain16_shutter < (cap_bandfilt * 16)) {
> + /* shutter < 1/100 */
> + cap_shutter = cap_gain16_shutter / 16;
> + if (cap_shutter < 1)
> + cap_shutter = 1;
> +
> + cap_gain16 = cap_gain16_shutter / cap_shutter;
> + if (cap_gain16 < 16)
> + cap_gain16 = 16;
> + } else {
> + if (cap_gain16_shutter > (cap_bandfilt * cap_maxband * 16)) {
> + /* exposure reach max */
> + cap_shutter = cap_bandfilt * cap_maxband;
> + if (!cap_shutter)
> + return -EINVAL;
> +
> + cap_gain16 = cap_gain16_shutter / cap_shutter;
> + } else {
> + /* 1/100 < (cap_shutter = n/100) =< max */
> + cap_shutter =
> + ((int)(cap_gain16_shutter / 16 / cap_bandfilt))
> + * cap_bandfilt;
> + if (!cap_shutter)
> + return -EINVAL;
> +
> + cap_gain16 = cap_gain16_shutter / cap_shutter;
> + }
> + }
> +
> + /* write capture gain */
> + ret = ov5640_set_gain(sensor, cap_gain16);
> + if (ret < 0)
> + return ret;
> +
> + /* write capture shutter */
> + if (cap_shutter > (cap_vts - 4)) {
> + cap_vts = cap_shutter + 4;
> + ret = ov5640_set_vts(sensor, cap_vts);
> + if (ret < 0)
> + return ret;
> + }
> +
> + return ov5640_set_exposure(sensor, cap_shutter);
> +}
> +
> +/*
> + * if sensor changes inside scaling or subsampling
> + * change mode directly
> + */
> +static int ov5640_set_mode_direct(struct ov5640_dev *sensor,
> + const struct ov5640_mode_info *mode)
> +{
> + int ret;
> +
> + if (mode->reg_data == NULL)
> + return -EINVAL;
> +
> + /* turn off AE/AG */
> + ret = ov5640_set_agc_aec(sensor, false);
> + if (ret < 0)
> + return ret;
> +
> + /* Write capture setting */
> + ret = ov5640_load_regs(sensor, mode);
> + if (ret < 0)
> + return ret;
> +
> + return ov5640_set_agc_aec(sensor, true);
> +}
> +
> +static int ov5640_set_mode(struct ov5640_dev *sensor,
> + const struct ov5640_mode_info *orig_mode)
> +{
> + const struct ov5640_mode_info *mode = sensor->current_mode;
> + enum ov5640_downsize_mode dn_mode, orig_dn_mode;
> + int ret;
> +
> + dn_mode = mode->dn_mode;
> + orig_dn_mode = orig_mode->dn_mode;
> +
> + if ((dn_mode == SUBSAMPLING && orig_dn_mode == SCALING) ||
> + (dn_mode == SCALING && orig_dn_mode == SUBSAMPLING)) {
> + /*
> + * change between subsampling and scaling
> + * go through exposure calucation
> + */
> + ret = ov5640_set_mode_exposure_calc(sensor, mode);
> + } else {
> + /*
> + * change inside subsampling or scaling
> + * download firmware directly
> + */
> + ret = ov5640_set_mode_direct(sensor, mode);
> + }
> +
> + if (ret < 0)
> + return ret;
> +
> + ret = ov5640_set_ae_target(sensor, sensor->ae_target);
> + if (ret < 0)
> + return ret;
> + ret = ov5640_get_light_freq(sensor);
> + if (ret < 0)
> + return ret;
> + ret = ov5640_set_bandingfilter(sensor);
> + if (ret < 0)
> + return ret;
> + ret = ov5640_set_virtual_channel(sensor);
> + if (ret < 0)
> + return ret;
> +
> + sensor->pending_mode_change = false;
> +
> + return 0;
> +}
> +
> +/* restore the last set video mode after chip power-on */
> +static int ov5640_restore_mode(struct ov5640_dev *sensor)
> +{
> + int ret;
> +
> + /* first load the initial register values */
> + ret = ov5640_load_regs(sensor, &ov5640_mode_init_data);
> + if (ret < 0)
> + return ret;
> +
> + /* now restore the last capture mode */
> + return ov5640_set_mode(sensor, &ov5640_mode_init_data);
> +}
> +
> +static void ov5640_power(struct ov5640_dev *sensor, bool enable)
> +{
> + if (sensor->pwdn_gpio)
> + gpiod_set_value(sensor->pwdn_gpio, enable ? 0 : 1);
> +}
> +
> +static void ov5640_reset(struct ov5640_dev *sensor)
> +{
> + if (!sensor->reset_gpio)
> + return;
> +
> + gpiod_set_value(sensor->reset_gpio, 0);
> +
> + /* camera power cycle */
> + ov5640_power(sensor, false);
> + usleep_range(5000, 10000);
> + ov5640_power(sensor, true);
> + usleep_range(5000, 10000);
> +
> + gpiod_set_value(sensor->reset_gpio, 1);
> + usleep_range(1000, 2000);
> +
> + gpiod_set_value(sensor->reset_gpio, 0);
> + usleep_range(5000, 10000);
> +}
> +
> +static int ov5640_set_power(struct ov5640_dev *sensor, bool on)
> +{
> + int ret = 0;
> +
> + if (on) {
> + clk_prepare_enable(sensor->xclk);
> +
> + ret = regulator_bulk_enable(OV5640_NUM_SUPPLIES,
> + sensor->supplies);
> + if (ret)
> + goto xclk_off;
> +
> + ov5640_reset(sensor);
> + ov5640_power(sensor, true);
> +
> + ret = ov5640_init_slave_id(sensor);
> + if (ret)
> + goto power_off;
> +
> + ret = ov5640_restore_mode(sensor);
> + if (ret)
> + goto power_off;
> +
> + /*
> + * start streaming briefly followed by stream off in
> + * order to coax the clock lane into LP-11 state.
> + */
> + ov5640_set_stream(sensor, true);
> + usleep_range(1000, 2000);
> + ov5640_set_stream(sensor, false);
> +
> + return 0;
> + }
> +
> +power_off:
> + ov5640_power(sensor, false);
> + regulator_bulk_disable(OV5640_NUM_SUPPLIES, sensor->supplies);
> +xclk_off:
> + clk_disable_unprepare(sensor->xclk);
> + return ret;
> +}
> +
> +/* --------------- Subdev Operations --------------- */
> +
> +static int ov5640_s_power(struct v4l2_subdev *sd, int on)
> +{
> + struct ov5640_dev *sensor = to_ov5640_dev(sd);
> + int ret = 0;
> +
> + mutex_lock(&sensor->lock);
> +
> + /*
> + * If the power count is modified from 0 to != 0 or from != 0 to 0,
> + * update the power state.
> + */
> + if (sensor->power_count == !on) {
> + ret = ov5640_set_power(sensor, !!on);
> + if (ret)
> + goto out;
> + }
> +
> + /* Update the power count. */
> + sensor->power_count += on ? 1 : -1;
> + WARN_ON(sensor->power_count < 0);
> +out:
> + mutex_unlock(&sensor->lock);
> +
> + if (on && !ret && sensor->power_count == 1) {
> + /* restore controls */
> + ret = v4l2_ctrl_handler_setup(&sensor->ctrls.handler);
> + }
> +
> + return ret;
> +}
> +
> +static int ov5640_try_frame_interval(struct ov5640_dev *sensor,
> + struct v4l2_fract *fi,
> + u32 width, u32 height)
> +{
> + const struct ov5640_mode_info *mode;
> + u32 minfps, maxfps, fps;
> + int ret;
> +
> + minfps = ov5640_framerates[OV5640_15_FPS];
> + maxfps = ov5640_framerates[OV5640_30_FPS];
> +
> + if (fi->numerator == 0) {
> + fi->denominator = maxfps;
> + fi->numerator = 1;
> + return OV5640_30_FPS;
> + }
> +
> + fps = DIV_ROUND_CLOSEST(fi->denominator, fi->numerator);
> +
> + fi->numerator = 1;
> + if (fps > maxfps)
> + fi->denominator = maxfps;
> + else if (fps < minfps)
> + fi->denominator = minfps;
> + else if (2 * fps >= 2 * minfps + (maxfps - minfps))
> + fi->denominator = maxfps;
> + else
> + fi->denominator = minfps;
> +
> + ret = (fi->denominator == minfps) ? OV5640_15_FPS : OV5640_30_FPS;
> +
> + mode = ov5640_find_mode(sensor, ret, width, height, false);
> + return mode ? ret : -EINVAL;
> +}
> +
> +static int ov5640_get_fmt(struct v4l2_subdev *sd,
> + struct v4l2_subdev_pad_config *cfg,
> + struct v4l2_subdev_format *format)
> +{
> + struct ov5640_dev *sensor = to_ov5640_dev(sd);
> + struct v4l2_mbus_framefmt *fmt;
> +
> + if (format->pad != 0)
> + return -EINVAL;
> +
> + mutex_lock(&sensor->lock);
> +
> + if (format->which == V4L2_SUBDEV_FORMAT_TRY)
> + fmt = v4l2_subdev_get_try_format(&sensor->sd, cfg,
> + format->pad);
> + else
> + fmt = &sensor->fmt;
> +
> + format->format = *fmt;
> +
> + mutex_unlock(&sensor->lock);
> +
> + return 0;
> +}
> +
> +static int ov5640_try_fmt_internal(struct v4l2_subdev *sd,
> + struct v4l2_mbus_framefmt *fmt,
> + enum ov5640_frame_rate fr,
> + const struct ov5640_mode_info **new_mode)
> +{
> + struct ov5640_dev *sensor = to_ov5640_dev(sd);
> + const struct ov5640_mode_info *mode;
> +
> + mode = ov5640_find_mode(sensor, fr, fmt->width, fmt->height, true);
> + if (!mode)
> + return -EINVAL;
> +
> + fmt->width = mode->width;
> + fmt->height = mode->height;
> + fmt->code = sensor->fmt.code;
> +
> + if (new_mode)
> + *new_mode = mode;
> + return 0;
> +}
> +
> +static int ov5640_set_fmt(struct v4l2_subdev *sd,
> + struct v4l2_subdev_pad_config *cfg,
> + struct v4l2_subdev_format *format)
> +{
> + struct ov5640_dev *sensor = to_ov5640_dev(sd);
> + const struct ov5640_mode_info *new_mode;
> + int ret;
> +
> + if (format->pad != 0)
> + return -EINVAL;
> +
> + mutex_lock(&sensor->lock);
> +
> + if (sensor->streaming) {
> + ret = -EBUSY;
> + goto out;
> + }
> +
> + ret = ov5640_try_fmt_internal(sd, &format->format,
> + sensor->current_fr, &new_mode);
> + if (ret)
> + goto out;
> +
> + if (format->which == V4L2_SUBDEV_FORMAT_TRY) {
> + struct v4l2_mbus_framefmt *fmt =
> + v4l2_subdev_get_try_format(sd, cfg, 0);
> +
> + *fmt = format->format;
> + goto out;
> + }
> +
> + sensor->current_mode = new_mode;
> + sensor->fmt = format->format;
> + sensor->pending_mode_change = true;
> +out:
> + mutex_unlock(&sensor->lock);
> + return ret;
> +}
> +
> +
> +/*
> + * Sensor Controls.
> + */
> +
> +static int ov5640_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
> +{
> + struct v4l2_subdev *sd = ctrl_to_sd(ctrl);
> + struct ov5640_dev *sensor = to_ov5640_dev(sd);
> +
> + mutex_lock(&sensor->lock);
> +
> + switch (ctrl->id) {
> + case V4L2_CID_AUTOGAIN:
> + if (!ctrl->val)
> + goto out;
> + sensor->ctrls.gain->val = ov5640_get_gain(sensor);
> + break;
> + case V4L2_CID_EXPOSURE_AUTO:
> + if (ctrl->val == V4L2_EXPOSURE_MANUAL)
> + goto out;
> + sensor->ctrls.exposure->val = ov5640_get_exposure(sensor);
> + break;
> + }
> +
> +out:
> + mutex_unlock(&sensor->lock);
> + return 0;
> +}
> +
> +static int ov5640_s_ctrl(struct v4l2_ctrl *ctrl)
> +{
> + struct v4l2_subdev *sd = ctrl_to_sd(ctrl);
> + struct ov5640_dev *sensor = to_ov5640_dev(sd);
> + int ret = 0;
> +
> + mutex_lock(&sensor->lock);

Could you use the same lock for the controls as you use for the rest? Just
setting handler->lock after handler init does the trick.

> +
> + /*
> + * If the device is not powered up by the host driver do
> + * not apply any controls to H/W at this time. Instead
> + * the controls will be restored right after power-up.
> + */
> + if (sensor->power_count == 0)
> + goto out;
> +
> + switch (ctrl->id) {
> + case V4L2_CID_AUTOGAIN:
> + ret = ov5640_set_gain(sensor, ctrl->val);
> + break;
> + case V4L2_CID_EXPOSURE_AUTO:
> + ret = ov5640_set_exposure(sensor, ctrl->val);
> + break;
> + case V4L2_CID_AUTO_WHITE_BALANCE:
> + ret = ov5640_set_white_balance(sensor, ctrl->val);
> + break;
> + case V4L2_CID_HUE:
> + ret = ov5640_set_hue(sensor, ctrl->val);
> + break;
> + case V4L2_CID_CONTRAST:
> + ret = ov5640_set_contrast(sensor, ctrl->val);
> + break;
> + case V4L2_CID_SATURATION:
> + ret = ov5640_set_saturation(sensor, ctrl->val);
> + break;
> + case V4L2_CID_TEST_PATTERN:
> + ret = ov5640_set_test_pattern(sensor, ctrl->val);
> + break;
> + default:
> + ret = -EINVAL;
> + break;
> + }
> +
> +out:
> + mutex_unlock(&sensor->lock);
> + return ret;
> +}
> +
> +static const struct v4l2_ctrl_ops ov5640_ctrl_ops = {
> + .g_volatile_ctrl = ov5640_g_volatile_ctrl,
> + .s_ctrl = ov5640_s_ctrl,
> +};
> +
> +static const char * const test_pattern_menu[] = {
> + "Disabled",
> + "Color bars",
> +};
> +
> +static int ov5640_init_controls(struct ov5640_dev *sensor)
> +{
> + const struct v4l2_ctrl_ops *ops = &ov5640_ctrl_ops;
> + struct ov5640_ctrls *ctrls = &sensor->ctrls;
> + struct v4l2_ctrl_handler *hdl = &ctrls->handler;
> + int ret;
> +
> + v4l2_ctrl_handler_init(hdl, 32);
> +
> + /* Auto/manual white balance */
> + ctrls->auto_wb = v4l2_ctrl_new_std(hdl, ops,
> + V4L2_CID_AUTO_WHITE_BALANCE,
> + 0, 1, 1, 1);
> + ctrls->blue_balance = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_BLUE_BALANCE,
> + 0, 4095, 1, 0);
> + ctrls->red_balance = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_RED_BALANCE,
> + 0, 4095, 1, 0);
> + /* Auto/manual exposure */
> + ctrls->auto_exp = v4l2_ctrl_new_std_menu(hdl, ops,
> + V4L2_CID_EXPOSURE_AUTO,
> + V4L2_EXPOSURE_MANUAL, 0,
> + V4L2_EXPOSURE_AUTO);
> + ctrls->exposure = v4l2_ctrl_new_std(hdl, ops,
> + V4L2_CID_EXPOSURE_ABSOLUTE,
> + 0, 65535, 1, 0);
> + /* Auto/manual gain */
> + ctrls->auto_gain = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_AUTOGAIN,
> + 0, 1, 1, 1);
> + ctrls->gain = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_GAIN,
> + 0, 1023, 1, 0);
> +
> + ctrls->saturation = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_SATURATION,
> + 0, 255, 1, 64);
> + ctrls->hue = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_HUE,
> + 0, 359, 1, 0);
> + ctrls->contrast = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_CONTRAST,
> + 0, 255, 1, 0);
> + ctrls->test_pattern =
> + v4l2_ctrl_new_std_menu_items(hdl, ops, V4L2_CID_TEST_PATTERN,
> + ARRAY_SIZE(test_pattern_menu) - 1,
> + 0, 0, test_pattern_menu);
> +
> + if (hdl->error) {
> + ret = hdl->error;
> + goto free_ctrls;
> + }
> +
> + ctrls->gain->flags |= V4L2_CTRL_FLAG_VOLATILE;
> + ctrls->exposure->flags |= V4L2_CTRL_FLAG_VOLATILE;
> +
> + v4l2_ctrl_auto_cluster(3, &ctrls->auto_wb, 0, false);
> + v4l2_ctrl_auto_cluster(2, &ctrls->auto_gain, 0, true);
> + v4l2_ctrl_auto_cluster(2, &ctrls->auto_exp, 1, true);
> +
> + sensor->sd.ctrl_handler = hdl;
> + return 0;
> +
> +free_ctrls:
> + v4l2_ctrl_handler_free(hdl);
> + return ret;
> +}
> +
> +static int ov5640_enum_frame_size(struct v4l2_subdev *sd,
> + struct v4l2_subdev_pad_config *cfg,
> + struct v4l2_subdev_frame_size_enum *fse)
> +{
> + if (fse->pad != 0)
> + return -EINVAL;
> + if (fse->index >= OV5640_NUM_MODES)
> + return -EINVAL;
> +
> + fse->min_width = fse->max_width =
> + ov5640_mode_data[0][fse->index].width;
> + fse->min_height = fse->max_height =
> + ov5640_mode_data[0][fse->index].height;
> +
> + return 0;
> +}
> +
> +static int ov5640_enum_frame_interval(
> + struct v4l2_subdev *sd,
> + struct v4l2_subdev_pad_config *cfg,
> + struct v4l2_subdev_frame_interval_enum *fie)
> +{
> + struct ov5640_dev *sensor = to_ov5640_dev(sd);
> + struct v4l2_fract tpf;
> + int ret;
> +
> + if (fie->pad != 0)
> + return -EINVAL;
> + if (fie->index >= OV5640_NUM_FRAMERATES)
> + return -EINVAL;
> +
> + tpf.numerator = 1;
> + tpf.denominator = ov5640_framerates[fie->index];
> +
> + ret = ov5640_try_frame_interval(sensor, &tpf,
> + fie->width, fie->height);
> + if (ret < 0)
> + return -EINVAL;
> +
> + fie->interval = tpf;
> + return 0;
> +}
> +
> +static int ov5640_g_frame_interval(struct v4l2_subdev *sd,
> + struct v4l2_subdev_frame_interval *fi)
> +{
> + struct ov5640_dev *sensor = to_ov5640_dev(sd);
> +
> + mutex_lock(&sensor->lock);
> + fi->interval = sensor->frame_interval;
> + mutex_unlock(&sensor->lock);
> +
> + return 0;
> +}
> +
> +static int ov5640_s_frame_interval(struct v4l2_subdev *sd,
> + struct v4l2_subdev_frame_interval *fi)
> +{
> + struct ov5640_dev *sensor = to_ov5640_dev(sd);
> + const struct ov5640_mode_info *mode;
> + int frame_rate, ret = 0;
> +
> + if (fi->pad != 0)
> + return -EINVAL;
> +
> + mutex_lock(&sensor->lock);
> +
> + if (sensor->streaming) {
> + ret = -EBUSY;
> + goto out;
> + }
> +
> + mode = sensor->current_mode;
> +
> + frame_rate = ov5640_try_frame_interval(sensor, &fi->interval,
> + mode->width, mode->height);
> + if (frame_rate < 0)
> + frame_rate = OV5640_15_FPS;
> +
> + sensor->current_fr = frame_rate;
> + sensor->frame_interval = fi->interval;
> + sensor->pending_mode_change = true;
> +out:
> + mutex_unlock(&sensor->lock);
> + return ret;
> +}
> +
> +static int ov5640_enum_mbus_code(struct v4l2_subdev *sd,
> + struct v4l2_subdev_pad_config *cfg,
> + struct v4l2_subdev_mbus_code_enum *code)
> +{
> + struct ov5640_dev *sensor = to_ov5640_dev(sd);
> +
> + if (code->pad != 0)
> + return -EINVAL;
> + if (code->index != 0)
> + return -EINVAL;
> +
> + code->code = sensor->fmt.code;
> +
> + return 0;
> +}
> +
> +static int ov5640_s_stream(struct v4l2_subdev *sd, int enable)
> +{
> + struct ov5640_dev *sensor = to_ov5640_dev(sd);
> + int ret = 0;
> +
> + mutex_lock(&sensor->lock);
> +
> +#if defined(CONFIG_MEDIA_CONTROLLER)
> + if (sd->entity.stream_count > 1)

The entity stream_count isn't connected to the number of times s_stream(sd,
true) is called. Please remove the check.

> + goto out;
> +#endif
> +
> + if (sensor->streaming == !enable) {
> + if (enable && sensor->pending_mode_change) {
> + ret = ov5640_set_mode(sensor, sensor->current_mode);
> + if (ret)
> + goto out;
> + }
> +
> + ret = ov5640_set_stream(sensor, enable);
> + if (!ret)
> + sensor->streaming = enable;
> + }
> +out:
> + mutex_unlock(&sensor->lock);
> + return ret;
> +}
> +
> +static const struct v4l2_subdev_core_ops ov5640_core_ops = {
> + .s_power = ov5640_s_power,
> +};
> +
> +static const struct v4l2_subdev_video_ops ov5640_video_ops = {
> + .g_frame_interval = ov5640_g_frame_interval,
> + .s_frame_interval = ov5640_s_frame_interval,
> + .s_stream = ov5640_s_stream,
> +};
> +
> +static const struct v4l2_subdev_pad_ops ov5640_pad_ops = {
> + .enum_mbus_code = ov5640_enum_mbus_code,
> + .get_fmt = ov5640_get_fmt,
> + .set_fmt = ov5640_set_fmt,
> + .enum_frame_size = ov5640_enum_frame_size,
> + .enum_frame_interval = ov5640_enum_frame_interval,
> +};
> +
> +static const struct v4l2_subdev_ops ov5640_subdev_ops = {
> + .core = &ov5640_core_ops,
> + .video = &ov5640_video_ops,
> + .pad = &ov5640_pad_ops,
> +};
> +
> +static int ov5640_get_regulators(struct ov5640_dev *sensor)
> +{
> + int i;
> +
> + for (i = 0; i < OV5640_NUM_SUPPLIES; i++)
> + sensor->supplies[i].supply = ov5640_supply_name[i];
> +
> + return devm_regulator_bulk_get(&sensor->i2c_client->dev,
> + OV5640_NUM_SUPPLIES,
> + sensor->supplies);
> +}
> +
> +static int ov5640_probe(struct i2c_client *client,
> + const struct i2c_device_id *id)
> +{
> + struct device *dev = &client->dev;
> + struct device_node *endpoint;
> + struct ov5640_dev *sensor;
> + int ret;
> +
> + sensor = devm_kzalloc(dev, sizeof(*sensor), GFP_KERNEL);
> + if (!sensor)
> + return -ENOMEM;
> +
> + sensor->i2c_client = client;
> + sensor->fmt.code = MEDIA_BUS_FMT_UYVY8_2X8;
> + sensor->fmt.width = 640;
> + sensor->fmt.height = 480;
> + sensor->fmt.field = V4L2_FIELD_NONE;
> + sensor->frame_interval.numerator = 1;
> + sensor->frame_interval.denominator = ov5640_framerates[OV5640_30_FPS];
> + sensor->current_fr = OV5640_30_FPS;
> + sensor->current_mode =
> + &ov5640_mode_data[OV5640_30_FPS][OV5640_MODE_VGA_640_480];
> + sensor->pending_mode_change = true;
> +
> + sensor->ae_target = 52;
> +
> + endpoint = of_graph_get_next_endpoint(client->dev.of_node, NULL);
> + if (!endpoint) {
> + dev_err(dev, "endpoint node not found\n");
> + return -EINVAL;
> + }
> +
> + v4l2_of_parse_endpoint(endpoint, &sensor->ep);
> + of_node_put(endpoint);
> +
> + if (sensor->ep.bus_type != V4L2_MBUS_CSI2) {
> + dev_err(dev, "invalid bus type, must be MIPI CSI2\n");
> + return -EINVAL;
> + }
> +
> + /* get system clock (xclk) */
> + sensor->xclk = devm_clk_get(dev, "xclk");
> + if (IS_ERR(sensor->xclk)) {
> + dev_err(dev, "failed to get xclk\n");
> + return PTR_ERR(sensor->xclk);
> + }
> +
> + sensor->xclk_freq = clk_get_rate(sensor->xclk);
> + if (sensor->xclk_freq < OV5640_XCLK_MIN ||
> + sensor->xclk_freq > OV5640_XCLK_MAX) {
> + dev_err(dev, "xclk frequency out of range: %d Hz\n",
> + sensor->xclk_freq);
> + return -EINVAL;
> + }
> +
> + /* request optional power down pin */
> + sensor->pwdn_gpio = devm_gpiod_get_optional(dev, "powerdown",
> + GPIOD_OUT_HIGH);
> + /* request optional reset pin */
> + sensor->reset_gpio = devm_gpiod_get_optional(dev, "reset",
> + GPIOD_OUT_HIGH);
> +
> + v4l2_i2c_subdev_init(&sensor->sd, client, &ov5640_subdev_ops);
> +
> + sensor->sd.flags = V4L2_SUBDEV_FL_HAS_DEVNODE;
> + sensor->pad.flags = MEDIA_PAD_FL_SOURCE;
> + sensor->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;
> + ret = media_entity_pads_init(&sensor->sd.entity, 1, &sensor->pad);
> + if (ret)
> + return ret;
> +
> + ret = ov5640_get_regulators(sensor);
> + if (ret)
> + return ret;
> +
> + mutex_init(&sensor->lock);
> +
> + ret = ov5640_init_controls(sensor);
> + if (ret)
> + goto entity_cleanup;
> +
> + ret = v4l2_async_register_subdev(&sensor->sd);
> + if (ret)
> + goto free_ctrls;
> +
> + return 0;
> +
> +free_ctrls:
> + v4l2_ctrl_handler_free(&sensor->ctrls.handler);
> +entity_cleanup:
> + mutex_destroy(&sensor->lock);
> + media_entity_cleanup(&sensor->sd.entity);
> + regulator_bulk_disable(OV5640_NUM_SUPPLIES, sensor->supplies);

Should this still be here?

> + return ret;
> +}
> +
> +static int ov5640_remove(struct i2c_client *client)
> +{
> + struct v4l2_subdev *sd = i2c_get_clientdata(client);
> + struct ov5640_dev *sensor = to_ov5640_dev(sd);
> +
> + regulator_bulk_disable(OV5640_NUM_SUPPLIES, sensor->supplies);

Ditto.

> +
> + v4l2_async_unregister_subdev(&sensor->sd);
> + mutex_destroy(&sensor->lock);
> + media_entity_cleanup(&sensor->sd.entity);
> + v4l2_ctrl_handler_free(&sensor->ctrls.handler);
> +
> + return 0;
> +}
> +
> +static const struct i2c_device_id ov5640_id[] = {
> + {"ov5640", 0},
> + {},
> +};
> +MODULE_DEVICE_TABLE(i2c, ov5640_id);
> +
> +static const struct of_device_id ov5640_dt_ids[] = {
> + { .compatible = "ovti,ov5640" },
> + { /* sentinel */ }
> +};
> +MODULE_DEVICE_TABLE(of, ov5640_dt_ids);
> +
> +static struct i2c_driver ov5640_i2c_driver = {
> + .driver = {
> + .name = "ov5640",
> + .of_match_table = ov5640_dt_ids,
> + },
> + .id_table = ov5640_id,
> + .probe = ov5640_probe,
> + .remove = ov5640_remove,
> +};
> +
> +module_i2c_driver(ov5640_i2c_driver);
> +
> +MODULE_DESCRIPTION("OV5640 MIPI Camera Subdev Driver");
> +MODULE_LICENSE("GPL");

--
Kind regards,

Sakari Ailus
e-mail: sakari.ailus@xxxxxx XMPP: sailus@xxxxxxxxxxxxxx

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