[PATCH v3 0/2] OV5645 camera sensor driver

[PATCH v3 0/2] OV5645 camera sensor driver

[Todor Tomov]

This is the third version of the OV5645 camera sensor driver patchset.

Changes from version 2 include:
- external camera clock configuration is moved from DT to driver;
- pwdn-gpios renamed to enable-gpios;
- switched polarity of reset-gpios to the more intuitive active low;
- added Kconfig dependency to OF;
- return values checks;
- regulators and gpios are now required (not optional);
- regulators names renamed;
- power counter variable changed to a bool power state;
- ov5645_registered() is removed and sensor id reading moved to probe().

Changes from version 1 include:
- patch split to dt binding doc patch and driver patch;
- changes in power on/off logic - s_power is now not called on
  open/close;
- using assigned-clock-rates in dt for setting camera external
  clock rate;
- correct api for gpio handling;
- return values checks;
- style fixes.

Todor Tomov (2):
  [media] media: i2c/ov5645: add the device tree binding document
  media: Add a driver for the ov5645 camera sensor.

 .../devicetree/bindings/media/i2c/ov5645.txt       |   50 +
 drivers/media/i2c/Kconfig                          |   12 +
 drivers/media/i2c/Makefile                         |    1 +
 drivers/media/i2c/ov5645.c                         | 1369 ++++++++++++++++++++
 4 files changed, 1432 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/media/i2c/ov5645.txt
 create mode 100644 drivers/media/i2c/ov5645.c

-- 
1.9.1

[PATCH v3 1/2] [media] media: i2c/ov5645: add the device tree binding document

[Todor Tomov]

Add the document for ov5645 device tree binding.

Signed-off-by: Todor Tomov <todor.tomov@linaro.org>
---
 .../devicetree/bindings/media/i2c/ov5645.txt       | 50 ++++++++++++++++++++++
 1 file changed, 50 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/media/i2c/ov5645.txt

diff --git a/Documentation/devicetree/bindings/media/i2c/ov5645.txt b/Documentation/devicetree/bindings/media/i2c/ov5645.txt
new file mode 100644
index 0000000..468cf83
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/i2c/ov5645.txt
@@ -0,0 +1,50 @@
+* Omnivision 1/4-Inch 5Mp CMOS Digital Image Sensor
+
+The Omnivision OV5645 is a 1/4-Inch CMOS active pixel digital image sensor with
+an active array size of 2592H x 1944V. It is programmable through a serial I2C
+interface.
+
+Required Properties:
+- compatible: Value should be "ovti,ov5645".
+- clocks: Reference to the xclk clock.
+- clock-names: Should be "xclk".
+- enable-gpios: Chip enable GPIO. Polarity is GPIO_ACTIVE_HIGH.
+- reset-gpios: Chip reset GPIO. Polarity is GPIO_ACTIVE_LOW.
+- vdddo-supply: Chip digital IO regulator.
+- vdda-supply: Chip analog regulator.
+- vddd-supply: Chip digital core regulator.
+
+The device node must contain one 'port' child node for its digital output
+video port, in accordance with the video interface bindings defined in
+Documentation/devicetree/bindings/media/video-interfaces.txt.
+
+Example:
+
+	&i2c1 {
+		...
+
+		ov5645: ov5645@78 {
+			compatible = "ovti,ov5645";
+			reg = <0x78>;
+
+			enable-gpios = <&gpio1 6 GPIO_ACTIVE_HIGH>;
+			reset-gpios = <&gpio5 20 GPIO_ACTIVE_LOW>;
+			pinctrl-names = "default";
+			pinctrl-0 = <&camera_rear_default>;
+
+			clocks = <&clks 200>;
+			clock-names = "xclk";
+
+			vdddo-supply = <&camera_dovdd_1v8>;
+			vdda-supply = <&camera_avdd_2v8>;
+			vddd-supply = <&camera_dvdd_1v2>;
+
+			port {
+				ov5645_ep: endpoint {
+					clock-lanes = <1>;
+					data-lanes = <0 2>;
+					remote-endpoint = <&csi0_ep>;
+				};
+			};
+		};
+	};
-- 
1.9.1

Re: [PATCH v3 1/2] [media] media: i2c/ov5645: add the device tree binding document

[Rob Herring]

On Fri, May 27, 2016 at 06:38:49PM +0300, Todor Tomov wrote:
> Add the document for ov5645 device tree binding.
> 
> Signed-off-by: Todor Tomov <todor.tomov@linaro.org>
> ---
>  .../devicetree/bindings/media/i2c/ov5645.txt       | 50 ++++++++++++++++++++++
>  1 file changed, 50 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/media/i2c/ov5645.txt

Acked-by: Rob Herring <robh@kernel.org>

[PATCH v3 2/2] media: Add a driver for the ov5645 camera sensor.

[Todor Tomov]

The ov5645 sensor from Omnivision supports up to 2592x1944
and CSI2 interface.

The driver adds support for the following modes:
- 1280x960
- 1920x1080
- 2592x1944

Output format is packed 8bit UYVY.

Signed-off-by: Todor Tomov <todor.tomov@linaro.org>
---
 drivers/media/i2c/Kconfig  |   12 +
 drivers/media/i2c/Makefile |    1 +
 drivers/media/i2c/ov5645.c | 1369 ++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 1382 insertions(+)
 create mode 100644 drivers/media/i2c/ov5645.c

diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig
index 521bbf1..2f2a52b 100644
--- a/drivers/media/i2c/Kconfig
+++ b/drivers/media/i2c/Kconfig
@@ -490,6 +490,18 @@ config VIDEO_OV2659
 	  To compile this driver as a module, choose M here: the
 	  module will be called ov2659.
 
+config VIDEO_OV5645
+	tristate "OmniVision OV5645 sensor support"
+	depends on OF
+	depends on I2C && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API
+	depends on MEDIA_CAMERA_SUPPORT
+	---help---
+	  This is a Video4Linux2 sensor-level driver for the OmniVision
+	  OV5645 camera.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called ov5645.
+
 config VIDEO_OV7640
 	tristate "OmniVision OV7640 sensor support"
 	depends on I2C && VIDEO_V4L2
diff --git a/drivers/media/i2c/Makefile b/drivers/media/i2c/Makefile
index 07db257..29003df 100644
--- a/drivers/media/i2c/Makefile
+++ b/drivers/media/i2c/Makefile
@@ -54,6 +54,7 @@ obj-$(CONFIG_VIDEO_VP27SMPX) += vp27smpx.o
 obj-$(CONFIG_VIDEO_SONY_BTF_MPX) += sony-btf-mpx.o
 obj-$(CONFIG_VIDEO_UPD64031A) += upd64031a.o
 obj-$(CONFIG_VIDEO_UPD64083) += upd64083.o
+obj-$(CONFIG_VIDEO_OV5645) += ov5645.o
 obj-$(CONFIG_VIDEO_OV7640) += ov7640.o
 obj-$(CONFIG_VIDEO_OV7670) += ov7670.o
 obj-$(CONFIG_VIDEO_OV9650) += ov9650.o
diff --git a/drivers/media/i2c/ov5645.c b/drivers/media/i2c/ov5645.c
new file mode 100644
index 0000000..97031b1
--- /dev/null
+++ b/drivers/media/i2c/ov5645.c
@@ -0,0 +1,1369 @@
+/*
+ * Driver for the OV5645 camera sensor.
+ *
+ * Copyright (c) 2011-2015, The Linux Foundation. All rights reserved.
+ * Copyright (C) 2015 By Tech Design S.L. All Rights Reserved.
+ * Copyright (C) 2012-2013 Freescale Semiconductor, Inc. All Rights Reserved.
+ *
+ * Based on:
+ * - the OV5645 driver from QC msm-3.10 kernel on codeaurora.org:
+ *   https://us.codeaurora.org/cgit/quic/la/kernel/msm-3.10/tree/drivers/
+ *       media/platform/msm/camera_v2/sensor/ov5645.c?h=LA.BR.1.2.4_rb1.41
+ * - the OV5640 driver posted on linux-media:
+ *   https://www.mail-archive.com/linux-media%40vger.kernel.org/msg92671.html
+ */
+
+/*
+ * 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.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/bitops.h>
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/gpio/consumer.h>
+#include <linux/i2c.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_graph.h>
+#include <linux/regulator/consumer.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-of.h>
+#include <media/v4l2-subdev.h>
+
+#define OV5645_VOLTAGE_ANALOG               2800000
+#define OV5645_VOLTAGE_DIGITAL_CORE         1500000
+#define OV5645_VOLTAGE_DIGITAL_IO           1800000
+
+#define OV5645_XCLK	23880000
+
+#define OV5645_SYSTEM_CTRL0		0x3008
+#define		OV5645_SYSTEM_CTRL0_START	0x02
+#define		OV5645_SYSTEM_CTRL0_STOP	0x42
+#define OV5645_CHIP_ID_HIGH_REG		0x300A
+#define		OV5645_CHIP_ID_HIGH		0x56
+#define OV5645_CHIP_ID_LOW_REG		0x300B
+#define		OV5645_CHIP_ID_LOW		0x45
+#define OV5645_AWB_MANUAL_CONTROL	0x3406
+#define		OV5645_AWB_MANUAL_ENABLE	BIT(0)
+#define OV5645_AEC_PK_MANUAL		0x3503
+#define		OV5645_AEC_MANUAL_ENABLE	BIT(0)
+#define		OV5645_AGC_MANUAL_ENABLE	BIT(1)
+#define OV5645_TIMING_TC_REG20		0x3820
+#define		OV5645_SENSOR_VFLIP		BIT(1)
+#define		OV5645_ISP_VFLIP		BIT(2)
+#define OV5645_TIMING_TC_REG21		0x3821
+#define		OV5645_SENSOR_MIRROR		BIT(1)
+#define OV5645_PRE_ISP_TEST_SETTING_1	0x503d
+#define		OV5645_TEST_PATTERN_MASK	0x3
+#define		OV5645_SET_TEST_PATTERN(x)	((x) & OV5645_TEST_PATTERN_MASK)
+#define		OV5645_TEST_PATTERN_ENABLE	BIT(7)
+#define OV5645_SDE_SAT_U		0x5583
+#define OV5645_SDE_SAT_V		0x5584
+
+enum ov5645_mode {
+	OV5645_MODE_MIN = 0,
+	OV5645_MODE_SXGA = 0,
+	OV5645_MODE_1080P = 1,
+	OV5645_MODE_FULL = 2,
+	OV5645_MODE_MAX = 2
+};
+
+struct reg_value {
+	u16 reg;
+	u8 val;
+};
+
+struct ov5645_mode_info {
+	enum ov5645_mode mode;
+	u32 width;
+	u32 height;
+	struct reg_value *data;
+	u32 data_size;
+};
+
+struct ov5645 {
+	struct i2c_client *i2c_client;
+	struct device *dev;
+	struct v4l2_subdev sd;
+	struct media_pad pad;
+	struct v4l2_of_endpoint ep;
+	struct v4l2_mbus_framefmt fmt;
+	struct v4l2_rect crop;
+	struct clk *xclk;
+
+	struct regulator *io_regulator;
+	struct regulator *core_regulator;
+	struct regulator *analog_regulator;
+
+	enum ov5645_mode current_mode;
+
+	/* Cached control values */
+	struct v4l2_ctrl_handler ctrls;
+	struct v4l2_ctrl *saturation;
+	struct v4l2_ctrl *hflip;
+	struct v4l2_ctrl *vflip;
+	struct v4l2_ctrl *autogain;
+	struct v4l2_ctrl *autoexposure;
+	struct v4l2_ctrl *awb;
+	struct v4l2_ctrl *pattern;
+
+	struct mutex power_lock; /* lock to protect power state */
+	bool power;
+
+	struct gpio_desc *enable_gpio;
+	struct gpio_desc *rst_gpio;
+};
+
+static inline struct ov5645 *to_ov5645(struct v4l2_subdev *sd)
+{
+	return container_of(sd, struct ov5645, sd);
+}
+
+static struct reg_value ov5645_global_init_setting[] = {
+	{ 0x3103, 0x11 },
+	{ 0x3008, 0x82 },
+	{ 0x3008, 0x42 },
+	{ 0x3103, 0x03 },
+	{ 0x3503, 0x07 },
+	{ 0x3002, 0x1c },
+	{ 0x3006, 0xc3 },
+	{ 0x300e, 0x45 },
+	{ 0x3017, 0x00 },
+	{ 0x3018, 0x00 },
+	{ 0x302e, 0x0b },
+	{ 0x3037, 0x13 },
+	{ 0x3108, 0x01 },
+	{ 0x3611, 0x06 },
+	{ 0x3500, 0x00 },
+	{ 0x3501, 0x01 },
+	{ 0x3502, 0x00 },
+	{ 0x350a, 0x00 },
+	{ 0x350b, 0x3f },
+	{ 0x3620, 0x33 },
+	{ 0x3621, 0xe0 },
+	{ 0x3622, 0x01 },
+	{ 0x3630, 0x2e },
+	{ 0x3631, 0x00 },
+	{ 0x3632, 0x32 },
+	{ 0x3633, 0x52 },
+	{ 0x3634, 0x70 },
+	{ 0x3635, 0x13 },
+	{ 0x3636, 0x03 },
+	{ 0x3703, 0x5a },
+	{ 0x3704, 0xa0 },
+	{ 0x3705, 0x1a },
+	{ 0x3709, 0x12 },
+	{ 0x370b, 0x61 },
+	{ 0x370f, 0x10 },
+	{ 0x3715, 0x78 },
+	{ 0x3717, 0x01 },
+	{ 0x371b, 0x20 },
+	{ 0x3731, 0x12 },
+	{ 0x3901, 0x0a },
+	{ 0x3905, 0x02 },
+	{ 0x3906, 0x10 },
+	{ 0x3719, 0x86 },
+	{ 0x3810, 0x00 },
+	{ 0x3811, 0x10 },
+	{ 0x3812, 0x00 },
+	{ 0x3821, 0x01 },
+	{ 0x3824, 0x01 },
+	{ 0x3826, 0x03 },
+	{ 0x3828, 0x08 },
+	{ 0x3a19, 0xf8 },
+	{ 0x3c01, 0x34 },
+	{ 0x3c04, 0x28 },
+	{ 0x3c05, 0x98 },
+	{ 0x3c07, 0x07 },
+	{ 0x3c09, 0xc2 },
+	{ 0x3c0a, 0x9c },
+	{ 0x3c0b, 0x40 },
+	{ 0x3c01, 0x34 },
+	{ 0x4001, 0x02 },
+	{ 0x4514, 0x00 },
+	{ 0x4520, 0xb0 },
+	{ 0x460b, 0x37 },
+	{ 0x460c, 0x20 },
+	{ 0x4818, 0x01 },
+	{ 0x481d, 0xf0 },
+	{ 0x481f, 0x50 },
+	{ 0x4823, 0x70 },
+	{ 0x4831, 0x14 },
+	{ 0x5000, 0xa7 },
+	{ 0x5001, 0x83 },
+	{ 0x501d, 0x00 },
+	{ 0x501f, 0x00 },
+	{ 0x503d, 0x00 },
+	{ 0x505c, 0x30 },
+	{ 0x5181, 0x59 },
+	{ 0x5183, 0x00 },
+	{ 0x5191, 0xf0 },
+	{ 0x5192, 0x03 },
+	{ 0x5684, 0x10 },
+	{ 0x5685, 0xa0 },
+	{ 0x5686, 0x0c },
+	{ 0x5687, 0x78 },
+	{ 0x5a00, 0x08 },
+	{ 0x5a21, 0x00 },
+	{ 0x5a24, 0x00 },
+	{ 0x3008, 0x02 },
+	{ 0x3503, 0x00 },
+	{ 0x5180, 0xff },
+	{ 0x5181, 0xf2 },
+	{ 0x5182, 0x00 },
+	{ 0x5183, 0x14 },
+	{ 0x5184, 0x25 },
+	{ 0x5185, 0x24 },
+	{ 0x5186, 0x09 },
+	{ 0x5187, 0x09 },
+	{ 0x5188, 0x0a },
+	{ 0x5189, 0x75 },
+	{ 0x518a, 0x52 },
+	{ 0x518b, 0xea },
+	{ 0x518c, 0xa8 },
+	{ 0x518d, 0x42 },
+	{ 0x518e, 0x38 },
+	{ 0x518f, 0x56 },
+	{ 0x5190, 0x42 },
+	{ 0x5191, 0xf8 },
+	{ 0x5192, 0x04 },
+	{ 0x5193, 0x70 },
+	{ 0x5194, 0xf0 },
+	{ 0x5195, 0xf0 },
+	{ 0x5196, 0x03 },
+	{ 0x5197, 0x01 },
+	{ 0x5198, 0x04 },
+	{ 0x5199, 0x12 },
+	{ 0x519a, 0x04 },
+	{ 0x519b, 0x00 },
+	{ 0x519c, 0x06 },
+	{ 0x519d, 0x82 },
+	{ 0x519e, 0x38 },
+	{ 0x5381, 0x1e },
+	{ 0x5382, 0x5b },
+	{ 0x5383, 0x08 },
+	{ 0x5384, 0x0a },
+	{ 0x5385, 0x7e },
+	{ 0x5386, 0x88 },
+	{ 0x5387, 0x7c },
+	{ 0x5388, 0x6c },
+	{ 0x5389, 0x10 },
+	{ 0x538a, 0x01 },
+	{ 0x538b, 0x98 },
+	{ 0x5300, 0x08 },
+	{ 0x5301, 0x30 },
+	{ 0x5302, 0x10 },
+	{ 0x5303, 0x00 },
+	{ 0x5304, 0x08 },
+	{ 0x5305, 0x30 },
+	{ 0x5306, 0x08 },
+	{ 0x5307, 0x16 },
+	{ 0x5309, 0x08 },
+	{ 0x530a, 0x30 },
+	{ 0x530b, 0x04 },
+	{ 0x530c, 0x06 },
+	{ 0x5480, 0x01 },
+	{ 0x5481, 0x08 },
+	{ 0x5482, 0x14 },
+	{ 0x5483, 0x28 },
+	{ 0x5484, 0x51 },
+	{ 0x5485, 0x65 },
+	{ 0x5486, 0x71 },
+	{ 0x5487, 0x7d },
+	{ 0x5488, 0x87 },
+	{ 0x5489, 0x91 },
+	{ 0x548a, 0x9a },
+	{ 0x548b, 0xaa },
+	{ 0x548c, 0xb8 },
+	{ 0x548d, 0xcd },
+	{ 0x548e, 0xdd },
+	{ 0x548f, 0xea },
+	{ 0x5490, 0x1d },
+	{ 0x5580, 0x02 },
+	{ 0x5583, 0x40 },
+	{ 0x5584, 0x10 },
+	{ 0x5589, 0x10 },
+	{ 0x558a, 0x00 },
+	{ 0x558b, 0xf8 },
+	{ 0x5800, 0x3f },
+	{ 0x5801, 0x16 },
+	{ 0x5802, 0x0e },
+	{ 0x5803, 0x0d },
+	{ 0x5804, 0x17 },
+	{ 0x5805, 0x3f },
+	{ 0x5806, 0x0b },
+	{ 0x5807, 0x06 },
+	{ 0x5808, 0x04 },
+	{ 0x5809, 0x04 },
+	{ 0x580a, 0x06 },
+	{ 0x580b, 0x0b },
+	{ 0x580c, 0x09 },
+	{ 0x580d, 0x03 },
+	{ 0x580e, 0x00 },
+	{ 0x580f, 0x00 },
+	{ 0x5810, 0x03 },
+	{ 0x5811, 0x08 },
+	{ 0x5812, 0x0a },
+	{ 0x5813, 0x03 },
+	{ 0x5814, 0x00 },
+	{ 0x5815, 0x00 },
+	{ 0x5816, 0x04 },
+	{ 0x5817, 0x09 },
+	{ 0x5818, 0x0f },
+	{ 0x5819, 0x08 },
+	{ 0x581a, 0x06 },
+	{ 0x581b, 0x06 },
+	{ 0x581c, 0x08 },
+	{ 0x581d, 0x0c },
+	{ 0x581e, 0x3f },
+	{ 0x581f, 0x1e },
+	{ 0x5820, 0x12 },
+	{ 0x5821, 0x13 },
+	{ 0x5822, 0x21 },
+	{ 0x5823, 0x3f },
+	{ 0x5824, 0x68 },
+	{ 0x5825, 0x28 },
+	{ 0x5826, 0x2c },
+	{ 0x5827, 0x28 },
+	{ 0x5828, 0x08 },
+	{ 0x5829, 0x48 },
+	{ 0x582a, 0x64 },
+	{ 0x582b, 0x62 },
+	{ 0x582c, 0x64 },
+	{ 0x582d, 0x28 },
+	{ 0x582e, 0x46 },
+	{ 0x582f, 0x62 },
+	{ 0x5830, 0x60 },
+	{ 0x5831, 0x62 },
+	{ 0x5832, 0x26 },
+	{ 0x5833, 0x48 },
+	{ 0x5834, 0x66 },
+	{ 0x5835, 0x44 },
+	{ 0x5836, 0x64 },
+	{ 0x5837, 0x28 },
+	{ 0x5838, 0x66 },
+	{ 0x5839, 0x48 },
+	{ 0x583a, 0x2c },
+	{ 0x583b, 0x28 },
+	{ 0x583c, 0x26 },
+	{ 0x583d, 0xae },
+	{ 0x5025, 0x00 },
+	{ 0x3a0f, 0x30 },
+	{ 0x3a10, 0x28 },
+	{ 0x3a1b, 0x30 },
+	{ 0x3a1e, 0x26 },
+	{ 0x3a11, 0x60 },
+	{ 0x3a1f, 0x14 },
+	{ 0x0601, 0x02 },
+	{ 0x3008, 0x42 },
+	{ 0x3008, 0x02 }
+};
+
+static struct reg_value ov5645_setting_sxga[] = {
+	{ 0x3612, 0xa9 },
+	{ 0x3614, 0x50 },
+	{ 0x3618, 0x00 },
+	{ 0x3034, 0x18 },
+	{ 0x3035, 0x21 },
+	{ 0x3036, 0x70 },
+	{ 0x3600, 0x09 },
+	{ 0x3601, 0x43 },
+	{ 0x3708, 0x66 },
+	{ 0x370c, 0xc3 },
+	{ 0x3800, 0x00 },
+	{ 0x3801, 0x00 },
+	{ 0x3802, 0x00 },
+	{ 0x3803, 0x06 },
+	{ 0x3804, 0x0a },
+	{ 0x3805, 0x3f },
+	{ 0x3806, 0x07 },
+	{ 0x3807, 0x9d },
+	{ 0x3808, 0x05 },
+	{ 0x3809, 0x00 },
+	{ 0x380a, 0x03 },
+	{ 0x380b, 0xc0 },
+	{ 0x380c, 0x07 },
+	{ 0x380d, 0x68 },
+	{ 0x380e, 0x03 },
+	{ 0x380f, 0xd8 },
+	{ 0x3813, 0x06 },
+	{ 0x3814, 0x31 },
+	{ 0x3815, 0x31 },
+	{ 0x3820, 0x47 },
+	{ 0x3a02, 0x03 },
+	{ 0x3a03, 0xd8 },
+	{ 0x3a08, 0x01 },
+	{ 0x3a09, 0xf8 },
+	{ 0x3a0a, 0x01 },
+	{ 0x3a0b, 0xa4 },
+	{ 0x3a0e, 0x02 },
+	{ 0x3a0d, 0x02 },
+	{ 0x3a14, 0x03 },
+	{ 0x3a15, 0xd8 },
+	{ 0x3a18, 0x00 },
+	{ 0x4004, 0x02 },
+	{ 0x4005, 0x18 },
+	{ 0x4300, 0x32 },
+	{ 0x4202, 0x00 }
+};
+
+static struct reg_value ov5645_setting_1080p[] = {
+	{ 0x3612, 0xab },
+	{ 0x3614, 0x50 },
+	{ 0x3618, 0x04 },
+	{ 0x3034, 0x18 },
+	{ 0x3035, 0x11 },
+	{ 0x3036, 0x54 },
+	{ 0x3600, 0x08 },
+	{ 0x3601, 0x33 },
+	{ 0x3708, 0x63 },
+	{ 0x370c, 0xc0 },
+	{ 0x3800, 0x01 },
+	{ 0x3801, 0x50 },
+	{ 0x3802, 0x01 },
+	{ 0x3803, 0xb2 },
+	{ 0x3804, 0x08 },
+	{ 0x3805, 0xef },
+	{ 0x3806, 0x05 },
+	{ 0x3807, 0xf1 },
+	{ 0x3808, 0x07 },
+	{ 0x3809, 0x80 },
+	{ 0x380a, 0x04 },
+	{ 0x380b, 0x38 },
+	{ 0x380c, 0x09 },
+	{ 0x380d, 0xc4 },
+	{ 0x380e, 0x04 },
+	{ 0x380f, 0x60 },
+	{ 0x3813, 0x04 },
+	{ 0x3814, 0x11 },
+	{ 0x3815, 0x11 },
+	{ 0x3820, 0x47 },
+	{ 0x4514, 0x88 },
+	{ 0x3a02, 0x04 },
+	{ 0x3a03, 0x60 },
+	{ 0x3a08, 0x01 },
+	{ 0x3a09, 0x50 },
+	{ 0x3a0a, 0x01 },
+	{ 0x3a0b, 0x18 },
+	{ 0x3a0e, 0x03 },
+	{ 0x3a0d, 0x04 },
+	{ 0x3a14, 0x04 },
+	{ 0x3a15, 0x60 },
+	{ 0x3a18, 0x00 },
+	{ 0x4004, 0x06 },
+	{ 0x4005, 0x18 },
+	{ 0x4300, 0x32 },
+	{ 0x4202, 0x00 },
+	{ 0x4837, 0x0b }
+};
+
+static struct reg_value ov5645_setting_full[] = {
+	{ 0x3612, 0xab },
+	{ 0x3614, 0x50 },
+	{ 0x3618, 0x04 },
+	{ 0x3034, 0x18 },
+	{ 0x3035, 0x11 },
+	{ 0x3036, 0x54 },
+	{ 0x3600, 0x08 },
+	{ 0x3601, 0x33 },
+	{ 0x3708, 0x63 },
+	{ 0x370c, 0xc0 },
+	{ 0x3800, 0x00 },
+	{ 0x3801, 0x00 },
+	{ 0x3802, 0x00 },
+	{ 0x3803, 0x00 },
+	{ 0x3804, 0x0a },
+	{ 0x3805, 0x3f },
+	{ 0x3806, 0x07 },
+	{ 0x3807, 0x9f },
+	{ 0x3808, 0x0a },
+	{ 0x3809, 0x20 },
+	{ 0x380a, 0x07 },
+	{ 0x380b, 0x98 },
+	{ 0x380c, 0x0b },
+	{ 0x380d, 0x1c },
+	{ 0x380e, 0x07 },
+	{ 0x380f, 0xb0 },
+	{ 0x3813, 0x06 },
+	{ 0x3814, 0x11 },
+	{ 0x3815, 0x11 },
+	{ 0x3820, 0x47 },
+	{ 0x4514, 0x88 },
+	{ 0x3a02, 0x07 },
+	{ 0x3a03, 0xb0 },
+	{ 0x3a08, 0x01 },
+	{ 0x3a09, 0x27 },
+	{ 0x3a0a, 0x00 },
+	{ 0x3a0b, 0xf6 },
+	{ 0x3a0e, 0x06 },
+	{ 0x3a0d, 0x08 },
+	{ 0x3a14, 0x07 },
+	{ 0x3a15, 0xb0 },
+	{ 0x3a18, 0x01 },
+	{ 0x4004, 0x06 },
+	{ 0x4005, 0x18 },
+	{ 0x4300, 0x32 },
+	{ 0x4837, 0x0b },
+	{ 0x4202, 0x00 }
+};
+
+static struct ov5645_mode_info ov5645_mode_info_data[OV5645_MODE_MAX + 1] = {
+	{
+		.mode = OV5645_MODE_SXGA,
+		.width = 1280,
+		.height = 960,
+		.data = ov5645_setting_sxga,
+		.data_size = ARRAY_SIZE(ov5645_setting_sxga)
+	},
+	{
+		.mode = OV5645_MODE_1080P,
+		.width = 1920,
+		.height = 1080,
+		.data = ov5645_setting_1080p,
+		.data_size = ARRAY_SIZE(ov5645_setting_1080p)
+	},
+	{
+		.mode = OV5645_MODE_FULL,
+		.width = 2592,
+		.height = 1944,
+		.data = ov5645_setting_full,
+		.data_size = ARRAY_SIZE(ov5645_setting_full)
+	},
+};
+
+static int ov5645_regulators_enable(struct ov5645 *ov5645)
+{
+	int ret;
+
+	ret = regulator_enable(ov5645->io_regulator);
+	if (ret < 0) {
+		dev_err(ov5645->dev, "set io voltage failed\n");
+		goto exit;
+	}
+
+	ret = regulator_enable(ov5645->core_regulator);
+	if (ret) {
+		dev_err(ov5645->dev, "set core voltage failed\n");
+		goto err_disable_io;
+	}
+
+	ret = regulator_enable(ov5645->analog_regulator);
+	if (ret) {
+		dev_err(ov5645->dev, "set analog voltage failed\n");
+		goto err_disable_core;
+	}
+
+	return 0;
+
+err_disable_core:
+	regulator_disable(ov5645->core_regulator);
+err_disable_io:
+	regulator_disable(ov5645->io_regulator);
+exit:
+	return ret;
+}
+
+static void ov5645_regulators_disable(struct ov5645 *ov5645)
+{
+	int ret;
+
+	ret = regulator_disable(ov5645->analog_regulator);
+	if (ret < 0)
+		dev_err(ov5645->dev, "analog regulator disable failed\n");
+
+	ret = regulator_disable(ov5645->core_regulator);
+	if (ret < 0)
+		dev_err(ov5645->dev, "core regulator disable failed\n");
+
+	ret = regulator_disable(ov5645->io_regulator);
+	if (ret < 0)
+		dev_err(ov5645->dev, "io regulator disable failed\n");
+}
+
+static int ov5645_write_reg(struct ov5645 *ov5645, u16 reg, u8 val)
+{
+	u8 regbuf[3];
+	int ret;
+
+	regbuf[0] = reg >> 8;
+	regbuf[1] = reg & 0xff;
+	regbuf[2] = val;
+
+	ret = i2c_master_send(ov5645->i2c_client, regbuf, 3);
+	if (ret < 0)
+		dev_err(ov5645->dev, "%s: write reg error %d: reg=%x, val=%x\n",
+			__func__, ret, reg, val);
+
+	return ret;
+}
+
+static int ov5645_read_reg(struct ov5645 *ov5645, u16 reg, u8 *val)
+{
+	u8 regbuf[2];
+	u8 tmpval;
+	int ret;
+
+	regbuf[0] = reg >> 8;
+	regbuf[1] = reg & 0xff;
+
+	ret = i2c_master_send(ov5645->i2c_client, regbuf, 2);
+	if (ret < 0) {
+		dev_err(ov5645->dev, "%s: write reg error %d: reg=%x\n",
+			__func__, ret, reg);
+		return ret;
+	}
+
+	ret = i2c_master_recv(ov5645->i2c_client, &tmpval, 1);
+	if (ret < 0) {
+		dev_err(ov5645->dev, "%s: read reg error %d: reg=%x\n",
+			__func__, ret, reg);
+		return ret;
+	}
+
+	*val = tmpval;
+
+	return 0;
+}
+
+static int ov5645_set_aec_mode(struct ov5645 *ov5645, u32 mode)
+{
+	u8 val;
+	int ret;
+
+	ret = ov5645_read_reg(ov5645, OV5645_AEC_PK_MANUAL, &val);
+	if (ret < 0)
+		return ret;
+
+	if (mode == V4L2_EXPOSURE_AUTO)
+		val &= ~OV5645_AEC_MANUAL_ENABLE;
+	else /* V4L2_EXPOSURE_MANUAL */
+		val |= OV5645_AEC_MANUAL_ENABLE;
+
+	dev_dbg(ov5645->dev, "%s: mode = %d\n", __func__, mode);
+
+	return ov5645_write_reg(ov5645, OV5645_AEC_PK_MANUAL, val);
+}
+
+static int ov5645_set_agc_mode(struct ov5645 *ov5645, u32 enable)
+{
+	u8 val;
+	int ret;
+
+	ret = ov5645_read_reg(ov5645, OV5645_AEC_PK_MANUAL, &val);
+	if (ret < 0)
+		return ret;
+
+	if (enable)
+		val &= ~OV5645_AGC_MANUAL_ENABLE;
+	else
+		val |= OV5645_AGC_MANUAL_ENABLE;
+
+	dev_dbg(ov5645->dev, "%s: enable = %d\n", __func__, enable);
+
+	return ov5645_write_reg(ov5645, OV5645_AEC_PK_MANUAL, val);
+}
+
+static int ov5645_set_register_array(struct ov5645 *ov5645,
+				     struct reg_value *settings,
+				     u32 num_settings)
+{
+	u16 reg;
+	u8 val;
+	u32 i;
+	int ret = 0;
+
+	for (i = 0; i < num_settings; ++i, ++settings) {
+		reg = settings->reg;
+		val = settings->val;
+
+		ret = ov5645_write_reg(ov5645, reg, val);
+		if (ret < 0)
+			goto err;
+	}
+err:
+	return ret;
+}
+
+static int ov5645_init(struct ov5645 *ov5645)
+{
+	struct reg_value *settings;
+	u32 num_settings;
+
+	settings = ov5645_global_init_setting;
+	num_settings = ARRAY_SIZE(ov5645_global_init_setting);
+
+	return ov5645_set_register_array(ov5645, settings, num_settings);
+}
+
+static int ov5645_change_mode(struct ov5645 *ov5645, enum ov5645_mode mode)
+{
+	struct reg_value *settings;
+	u32 num_settings;
+
+	settings = ov5645_mode_info_data[mode].data;
+	num_settings = ov5645_mode_info_data[mode].data_size;
+
+	return ov5645_set_register_array(ov5645, settings, num_settings);
+}
+
+static int ov5645_set_power_on(struct ov5645 *ov5645)
+{
+	int ret;
+
+	dev_dbg(ov5645->dev, "%s: Enter\n", __func__);
+
+	clk_set_rate(ov5645->xclk, OV5645_XCLK);
+
+	ret = clk_prepare_enable(ov5645->xclk);
+	if (ret < 0) {
+		dev_err(ov5645->dev, "clk prepare enable failed\n");
+		return ret;
+	}
+
+	ret = ov5645_regulators_enable(ov5645);
+	if (ret < 0) {
+		clk_disable_unprepare(ov5645->xclk);
+		return ret;
+	}
+
+	usleep_range(5000, 15000);
+	gpiod_set_value_cansleep(ov5645->enable_gpio, 1);
+
+	usleep_range(1000, 2000);
+	gpiod_set_value_cansleep(ov5645->rst_gpio, 0);
+
+	msleep(20);
+
+	return ret;
+}
+
+static void ov5645_set_power_off(struct ov5645 *ov5645)
+{
+	dev_dbg(ov5645->dev, "%s: Enter\n", __func__);
+
+	if (ov5645->rst_gpio)
+		gpiod_set_value_cansleep(ov5645->rst_gpio, 1);
+	if (ov5645->enable_gpio)
+		gpiod_set_value_cansleep(ov5645->enable_gpio, 0);
+	ov5645_regulators_disable(ov5645);
+	clk_disable_unprepare(ov5645->xclk);
+}
+
+static int ov5645_s_power(struct v4l2_subdev *sd, int on)
+{
+	struct ov5645 *ov5645 = to_ov5645(sd);
+	int ret = 0;
+
+	dev_dbg(ov5645->dev, "%s: on = %d\n", __func__, on);
+
+	mutex_lock(&ov5645->power_lock);
+
+	if (ov5645->power == !on) {
+		/* Power state changes. */
+		if (on) {
+			ret = ov5645_set_power_on(ov5645);
+			if (ret < 0) {
+				dev_err(ov5645->dev, "could not set power %s\n",
+					on ? "on" : "off");
+				goto exit;
+			}
+
+			ret = ov5645_init(ov5645);
+			if (ret < 0) {
+				dev_err(ov5645->dev,
+					"could not set init registers\n");
+				ov5645_set_power_off(ov5645);
+				goto exit;
+			}
+
+			ret = ov5645_write_reg(ov5645, OV5645_SYSTEM_CTRL0,
+					       OV5645_SYSTEM_CTRL0_STOP);
+			if (ret < 0) {
+				ov5645_set_power_off(ov5645);
+				goto exit;
+			}
+		} else {
+			ov5645_set_power_off(ov5645);
+		}
+
+		/* Update the power state. */
+		ov5645->power = on ? true : false;
+	}
+
+exit:
+	mutex_unlock(&ov5645->power_lock);
+
+	return ret;
+}
+
+
+static int ov5645_set_saturation(struct ov5645 *ov5645, s32 value)
+{
+	u32 reg_value = (value * 0x10) + 0x40;
+	int ret = 0;
+
+	ret |= ov5645_write_reg(ov5645, OV5645_SDE_SAT_U, reg_value);
+	ret |= ov5645_write_reg(ov5645, OV5645_SDE_SAT_V, reg_value);
+
+	dev_dbg(ov5645->dev, "%s: value = %d\n", __func__, value);
+
+	return ret;
+}
+
+static int ov5645_set_hflip(struct ov5645 *ov5645, s32 value)
+{
+	u8 val;
+	int ret;
+
+	ret = ov5645_read_reg(ov5645, OV5645_TIMING_TC_REG21, &val);
+	if (ret < 0)
+		return ret;
+
+	if (value == 0)
+		val &= ~(OV5645_SENSOR_MIRROR);
+	else
+		val |= (OV5645_SENSOR_MIRROR);
+
+	dev_dbg(ov5645->dev, "%s: value = %d\n", __func__, value);
+
+	return ov5645_write_reg(ov5645, OV5645_TIMING_TC_REG21, val);
+}
+
+static int ov5645_set_vflip(struct ov5645 *ov5645, s32 value)
+{
+	u8 val;
+	int ret;
+
+	ret = ov5645_read_reg(ov5645, OV5645_TIMING_TC_REG20, &val);
+	if (ret < 0)
+		return ret;
+
+	if (value == 0)
+		val |= (OV5645_SENSOR_VFLIP | OV5645_ISP_VFLIP);
+	else
+		val &= ~(OV5645_SENSOR_VFLIP | OV5645_ISP_VFLIP);
+
+	dev_dbg(ov5645->dev, "%s: value = %d\n", __func__, value);
+
+	return ov5645_write_reg(ov5645, OV5645_TIMING_TC_REG20, val);
+}
+
+static int ov5645_set_test_pattern(struct ov5645 *ov5645, s32 value)
+{
+	u8 val;
+	int ret;
+
+	ret = ov5645_read_reg(ov5645, OV5645_PRE_ISP_TEST_SETTING_1, &val);
+	if (ret < 0)
+		return ret;
+
+	if (value) {
+		val &= ~OV5645_SET_TEST_PATTERN(OV5645_TEST_PATTERN_MASK);
+		val |= OV5645_SET_TEST_PATTERN(value - 1);
+		val |= OV5645_TEST_PATTERN_ENABLE;
+	} else {
+		val &= ~OV5645_TEST_PATTERN_ENABLE;
+	}
+
+	dev_dbg(ov5645->dev, "%s: value = %d\n", __func__, value);
+
+	return ov5645_write_reg(ov5645, OV5645_PRE_ISP_TEST_SETTING_1, val);
+}
+
+static const char * const ov5645_test_pattern_menu[] = {
+	"Disabled",
+	"Vertical Color Bars",
+	"Random Data",
+	"Color Square",
+	"Black Image",
+};
+
+static int ov5645_set_awb(struct ov5645 *ov5645, s32 enable_auto)
+{
+	u8 val;
+	int ret;
+
+	ret = ov5645_read_reg(ov5645, OV5645_AWB_MANUAL_CONTROL, &val);
+	if (ret < 0)
+		return ret;
+
+	if (enable_auto)
+		val &= ~OV5645_AWB_MANUAL_ENABLE;
+	else
+		val |= OV5645_AWB_MANUAL_ENABLE;
+
+	dev_dbg(ov5645->dev, "%s: enable_auto = %d\n", __func__, enable_auto);
+
+	return ov5645_write_reg(ov5645, OV5645_AWB_MANUAL_CONTROL, val);
+}
+
+static int ov5645_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+	struct ov5645 *ov5645 = container_of(ctrl->handler,
+					     struct ov5645, ctrls);
+	int ret = -EINVAL;
+
+	mutex_lock(&ov5645->power_lock);
+	if (ov5645->power == 0) {
+		mutex_unlock(&ov5645->power_lock);
+		return 0;
+	}
+
+	switch (ctrl->id) {
+	case V4L2_CID_SATURATION:
+		ret = ov5645_set_saturation(ov5645, ctrl->val);
+		break;
+	case V4L2_CID_AUTO_WHITE_BALANCE:
+		ret = ov5645_set_awb(ov5645, ctrl->val);
+		break;
+	case V4L2_CID_AUTOGAIN:
+		ret = ov5645_set_agc_mode(ov5645, ctrl->val);
+		break;
+	case V4L2_CID_EXPOSURE_AUTO:
+		ret = ov5645_set_aec_mode(ov5645, ctrl->val);
+		break;
+	case V4L2_CID_TEST_PATTERN:
+		ret = ov5645_set_test_pattern(ov5645, ctrl->val);
+		break;
+	case V4L2_CID_HFLIP:
+		ret = ov5645_set_hflip(ov5645, ctrl->val);
+		break;
+	case V4L2_CID_VFLIP:
+		ret = ov5645_set_vflip(ov5645, ctrl->val);
+		break;
+	}
+
+	mutex_unlock(&ov5645->power_lock);
+
+	return ret;
+}
+
+static struct v4l2_ctrl_ops ov5645_ctrl_ops = {
+	.s_ctrl = ov5645_s_ctrl,
+};
+
+static int ov5645_enum_mbus_code(struct v4l2_subdev *sd,
+				 struct v4l2_subdev_pad_config *cfg,
+				 struct v4l2_subdev_mbus_code_enum *code)
+{
+	struct ov5645 *ov5645 = to_ov5645(sd);
+
+	if (code->index > 0)
+		return -EINVAL;
+
+	code->code = ov5645->fmt.code;
+
+	return 0;
+}
+
+static int ov5645_enum_frame_size(struct v4l2_subdev *subdev,
+				  struct v4l2_subdev_pad_config *cfg,
+				  struct v4l2_subdev_frame_size_enum *fse)
+{
+	if (fse->index >= OV5645_MODE_MAX)
+		return -EINVAL;
+
+	fse->min_width = ov5645_mode_info_data[fse->index].width;
+	fse->max_width = ov5645_mode_info_data[fse->index].width;
+	fse->min_height = ov5645_mode_info_data[fse->index].height;
+	fse->max_height = ov5645_mode_info_data[fse->index].height;
+
+	return 0;
+}
+
+static struct v4l2_mbus_framefmt *
+__ov5645_get_pad_format(struct ov5645 *ov5645,
+			struct v4l2_subdev_pad_config *cfg,
+			unsigned int pad,
+			enum v4l2_subdev_format_whence which)
+{
+	switch (which) {
+	case V4L2_SUBDEV_FORMAT_TRY:
+		return v4l2_subdev_get_try_format(&ov5645->sd, cfg, pad);
+	case V4L2_SUBDEV_FORMAT_ACTIVE:
+		return &ov5645->fmt;
+	default:
+		return NULL;
+	}
+}
+
+static int ov5645_get_format(struct v4l2_subdev *sd,
+			     struct v4l2_subdev_pad_config *cfg,
+			     struct v4l2_subdev_format *format)
+{
+	struct ov5645 *ov5645 = to_ov5645(sd);
+
+	format->format = *__ov5645_get_pad_format(ov5645, cfg, format->pad,
+						  format->which);
+	return 0;
+}
+
+static struct v4l2_rect *
+__ov5645_get_pad_crop(struct ov5645 *ov5645, struct v4l2_subdev_pad_config *cfg,
+		      unsigned int pad, enum v4l2_subdev_format_whence which)
+{
+	switch (which) {
+	case V4L2_SUBDEV_FORMAT_TRY:
+		return v4l2_subdev_get_try_crop(&ov5645->sd, cfg, pad);
+	case V4L2_SUBDEV_FORMAT_ACTIVE:
+		return &ov5645->crop;
+	default:
+		return NULL;
+	}
+}
+
+static enum ov5645_mode ov5645_find_nearest_mode(struct ov5645 *ov5645,
+						 int width, int height)
+{
+	int i;
+
+	for (i = OV5645_MODE_MAX; i >= 0; i--) {
+		if (ov5645_mode_info_data[i].width <= width &&
+		    ov5645_mode_info_data[i].height <= height)
+			break;
+	}
+
+	if (i < 0)
+		i = 0;
+
+	return (enum ov5645_mode)i;
+}
+
+static int ov5645_set_format(struct v4l2_subdev *sd,
+			     struct v4l2_subdev_pad_config *cfg,
+			     struct v4l2_subdev_format *format)
+{
+	struct ov5645 *ov5645 = to_ov5645(sd);
+	struct v4l2_mbus_framefmt *__format;
+	struct v4l2_rect *__crop;
+	enum ov5645_mode new_mode;
+
+	__crop = __ov5645_get_pad_crop(ov5645, cfg, format->pad,
+			format->which);
+
+	new_mode = ov5645_find_nearest_mode(ov5645,
+			format->format.width, format->format.height);
+	__crop->width = ov5645_mode_info_data[new_mode].width;
+	__crop->height = ov5645_mode_info_data[new_mode].height;
+
+	ov5645->current_mode = new_mode;
+
+	__format = __ov5645_get_pad_format(ov5645, cfg, format->pad,
+			format->which);
+	__format->width = __crop->width;
+	__format->height = __crop->height;
+
+	return 0;
+}
+
+static int ov5645_get_selection(struct v4l2_subdev *sd,
+			   struct v4l2_subdev_pad_config *cfg,
+			   struct v4l2_subdev_selection *sel)
+{
+	struct ov5645 *ov5645 = to_ov5645(sd);
+
+	if (sel->target != V4L2_SEL_TGT_CROP)
+		return -EINVAL;
+
+	sel->r = *__ov5645_get_pad_crop(ov5645, cfg, sel->pad,
+					sel->which);
+	return 0;
+}
+
+static int ov5645_s_stream(struct v4l2_subdev *subdev, int enable)
+{
+	struct ov5645 *ov5645 = to_ov5645(subdev);
+	int ret;
+
+	dev_dbg(ov5645->dev, "%s: enable = %d\n", __func__, enable);
+
+	if (enable) {
+		ret = ov5645_change_mode(ov5645, ov5645->current_mode);
+		if (ret < 0) {
+			dev_err(ov5645->dev, "could not set mode %d\n",
+				ov5645->current_mode);
+			return ret;
+		}
+		ret = v4l2_ctrl_handler_setup(&ov5645->ctrls);
+		if (ret < 0) {
+			dev_err(ov5645->dev, "could not sync v4l2 controls\n");
+			return ret;
+		}
+		ret = ov5645_write_reg(ov5645, OV5645_SYSTEM_CTRL0,
+				       OV5645_SYSTEM_CTRL0_START);
+		if (ret < 0)
+			return ret;
+	} else {
+		ret = ov5645_write_reg(ov5645, OV5645_SYSTEM_CTRL0,
+				       OV5645_SYSTEM_CTRL0_STOP);
+		if (ret < 0)
+			return ret;
+	}
+
+	return 0;
+}
+
+static struct v4l2_subdev_core_ops ov5645_core_ops = {
+	.s_power = ov5645_s_power,
+};
+
+static struct v4l2_subdev_video_ops ov5645_video_ops = {
+	.s_stream = ov5645_s_stream,
+};
+
+static struct v4l2_subdev_pad_ops ov5645_subdev_pad_ops = {
+	.enum_mbus_code = ov5645_enum_mbus_code,
+	.enum_frame_size = ov5645_enum_frame_size,
+	.get_fmt = ov5645_get_format,
+	.set_fmt = ov5645_set_format,
+	.get_selection = ov5645_get_selection,
+};
+
+static struct v4l2_subdev_ops ov5645_subdev_ops = {
+	.core = &ov5645_core_ops,
+	.video = &ov5645_video_ops,
+	.pad = &ov5645_subdev_pad_ops,
+};
+
+static const struct v4l2_subdev_internal_ops ov5645_subdev_internal_ops = {
+};
+
+static int ov5645_probe(struct i2c_client *client,
+			const struct i2c_device_id *id)
+{
+	struct device *dev = &client->dev;
+	struct device_node *endpoint;
+	struct ov5645 *ov5645;
+	u8 chip_id_high, chip_id_low;
+	int ret;
+
+	ov5645 = devm_kzalloc(dev, sizeof(struct ov5645), GFP_KERNEL);
+	if (!ov5645)
+		return -ENOMEM;
+
+	ov5645->i2c_client = client;
+	ov5645->dev = dev;
+	ov5645->fmt.code = MEDIA_BUS_FMT_UYVY8_2X8;
+	ov5645->fmt.width = 1920;
+	ov5645->fmt.height = 1080;
+	ov5645->fmt.field = V4L2_FIELD_NONE;
+	ov5645->fmt.colorspace = V4L2_COLORSPACE_SRGB;
+	ov5645->current_mode = OV5645_MODE_1080P;
+
+	endpoint = of_graph_get_next_endpoint(dev->of_node, NULL);
+	if (!endpoint) {
+		dev_err(dev, "endpoint node not found\n");
+		return -EINVAL;
+	}
+
+	ret = v4l2_of_parse_endpoint(endpoint, &ov5645->ep);
+	if (ret < 0) {
+		dev_err(dev, "parsing endpoint node failed\n");
+		return ret;
+	}
+	if (ov5645->ep.bus_type != V4L2_MBUS_CSI2) {
+		dev_err(dev, "invalid bus type, must be CSI2\n");
+		of_node_put(endpoint);
+		return -EINVAL;
+	}
+	of_node_put(endpoint);
+
+	/* get system clock (xclk) */
+	ov5645->xclk = devm_clk_get(dev, "xclk");
+	if (IS_ERR(ov5645->xclk)) {
+		dev_err(dev, "could not get xclk");
+		return PTR_ERR(ov5645->xclk);
+	}
+
+	ov5645->io_regulator = devm_regulator_get(dev, "vdddo");
+	if (IS_ERR(ov5645->io_regulator)) {
+		dev_err(dev, "cannot get io regulator\n");
+		return PTR_ERR(ov5645->io_regulator);
+	}
+
+	ret = regulator_set_voltage(ov5645->io_regulator,
+				    OV5645_VOLTAGE_DIGITAL_IO,
+				    OV5645_VOLTAGE_DIGITAL_IO);
+	if (ret < 0) {
+		dev_err(dev, "cannot set io voltage\n");
+		return ret;
+	}
+
+	ov5645->core_regulator = devm_regulator_get(dev, "vddd");
+	if (IS_ERR(ov5645->core_regulator)) {
+		dev_err(dev, "cannot get core regulator\n");
+		return PTR_ERR(ov5645->core_regulator);
+	}
+
+	ret = regulator_set_voltage(ov5645->core_regulator,
+				    OV5645_VOLTAGE_DIGITAL_CORE,
+				    OV5645_VOLTAGE_DIGITAL_CORE);
+	if (ret < 0) {
+		dev_err(dev, "cannot set core voltage\n");
+		return ret;
+	}
+
+	ov5645->analog_regulator = devm_regulator_get(dev, "vdda");
+	if (IS_ERR(ov5645->analog_regulator)) {
+		dev_err(dev, "cannot get analog regulator\n");
+		return PTR_ERR(ov5645->analog_regulator);
+	}
+
+	ret = regulator_set_voltage(ov5645->analog_regulator,
+				    OV5645_VOLTAGE_ANALOG,
+				    OV5645_VOLTAGE_ANALOG);
+	if (ret < 0) {
+		dev_err(dev, "cannot set analog voltage\n");
+		return ret;
+	}
+
+	ov5645->enable_gpio = devm_gpiod_get(dev, "enable", GPIOD_OUT_HIGH);
+	if (IS_ERR(ov5645->enable_gpio)) {
+		dev_err(dev, "cannot get enable gpio\n");
+		return PTR_ERR(ov5645->enable_gpio);
+	}
+
+	ov5645->rst_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
+	if (IS_ERR(ov5645->rst_gpio)) {
+		dev_err(dev, "cannot get reset gpio\n");
+		return PTR_ERR(ov5645->rst_gpio);
+	}
+
+	mutex_init(&ov5645->power_lock);
+
+	v4l2_ctrl_handler_init(&ov5645->ctrls, 7);
+	ov5645->saturation = v4l2_ctrl_new_std(&ov5645->ctrls, &ov5645_ctrl_ops,
+				V4L2_CID_SATURATION, -4, 4, 1, 0);
+	ov5645->hflip = v4l2_ctrl_new_std(&ov5645->ctrls, &ov5645_ctrl_ops,
+				V4L2_CID_HFLIP, 0, 1, 1, 0);
+	ov5645->vflip = v4l2_ctrl_new_std(&ov5645->ctrls, &ov5645_ctrl_ops,
+				V4L2_CID_VFLIP, 0, 1, 1, 0);
+	ov5645->autogain = v4l2_ctrl_new_std(&ov5645->ctrls, &ov5645_ctrl_ops,
+				V4L2_CID_AUTOGAIN, 0, 1, 1, 1);
+	ov5645->autoexposure = v4l2_ctrl_new_std_menu(&ov5645->ctrls,
+				&ov5645_ctrl_ops, V4L2_CID_EXPOSURE_AUTO,
+				V4L2_EXPOSURE_MANUAL, 0, V4L2_EXPOSURE_AUTO);
+	ov5645->awb = v4l2_ctrl_new_std(&ov5645->ctrls, &ov5645_ctrl_ops,
+				V4L2_CID_AUTO_WHITE_BALANCE, 0, 1, 1, 1);
+	ov5645->pattern = v4l2_ctrl_new_std_menu_items(&ov5645->ctrls,
+				&ov5645_ctrl_ops, V4L2_CID_TEST_PATTERN,
+				ARRAY_SIZE(ov5645_test_pattern_menu) - 1, 0, 0,
+				ov5645_test_pattern_menu);
+
+	ov5645->sd.ctrl_handler = &ov5645->ctrls;
+
+	if (ov5645->ctrls.error) {
+		dev_err(dev, "%s: control initialization error %d\n",
+		       __func__, ov5645->ctrls.error);
+		ret = ov5645->ctrls.error;
+		goto free_ctrl;
+	}
+
+	v4l2_i2c_subdev_init(&ov5645->sd, client, &ov5645_subdev_ops);
+	ov5645->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
+	ov5645->pad.flags = MEDIA_PAD_FL_SOURCE;
+	ov5645->sd.internal_ops = &ov5645_subdev_internal_ops;
+
+	ret = media_entity_init(&ov5645->sd.entity, 1, &ov5645->pad, 0);
+	if (ret < 0) {
+		dev_err(dev, "could not register media entity\n");
+		goto free_ctrl;
+	}
+
+	ov5645->sd.dev = &client->dev;
+	ret = v4l2_async_register_subdev(&ov5645->sd);
+	if (ret < 0) {
+		dev_err(dev, "could not register v4l2 device\n");
+		goto free_entity;
+	}
+
+	ret = ov5645_s_power(&ov5645->sd, true);
+	if (ret < 0) {
+		dev_err(dev, "could not power up OV5645\n");
+		goto unregister_subdev;
+	}
+
+	ret = ov5645_read_reg(ov5645, OV5645_CHIP_ID_HIGH_REG, &chip_id_high);
+	if (ret < 0 || chip_id_high != OV5645_CHIP_ID_HIGH) {
+		dev_err(dev, "could not read ID high\n");
+		ret = -ENODEV;
+		goto power_down;
+	}
+	ret = ov5645_read_reg(ov5645, OV5645_CHIP_ID_LOW_REG, &chip_id_low);
+	if (ret < 0 || chip_id_low != OV5645_CHIP_ID_LOW) {
+		dev_err(dev, "could not read ID low\n");
+		ret = -ENODEV;
+		goto power_down;
+	}
+
+	dev_info(dev, "OV5645 detected at address 0x%02x\n", client->addr);
+
+	ov5645_s_power(&ov5645->sd, false);
+
+	return 0;
+
+power_down:
+	ov5645_s_power(&ov5645->sd, false);
+unregister_subdev:
+	v4l2_async_unregister_subdev(&ov5645->sd);
+free_entity:
+	media_entity_cleanup(&ov5645->sd.entity);
+free_ctrl:
+	v4l2_ctrl_handler_free(&ov5645->ctrls);
+
+	return ret;
+}
+
+
+static int ov5645_remove(struct i2c_client *client)
+{
+	struct v4l2_subdev *sd = i2c_get_clientdata(client);
+	struct ov5645 *ov5645 = to_ov5645(sd);
+
+	v4l2_async_unregister_subdev(&ov5645->sd);
+	media_entity_cleanup(&ov5645->sd.entity);
+	v4l2_ctrl_handler_free(&ov5645->ctrls);
+
+	return 0;
+}
+
+
+static const struct i2c_device_id ov5645_id[] = {
+	{ "ov5645", 0 },
+	{}
+};
+MODULE_DEVICE_TABLE(i2c, ov5645_id);
+
+static const struct of_device_id ov5645_of_match[] = {
+	{ .compatible = "ovti,ov5645" },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, ov5645_of_match);
+
+static struct i2c_driver ov5645_i2c_driver = {
+	.driver = {
+		.of_match_table = of_match_ptr(ov5645_of_match),
+		.name  = "ov5645",
+	},
+	.probe  = ov5645_probe,
+	.remove = ov5645_remove,
+	.id_table = ov5645_id,
+};
+
+module_i2c_driver(ov5645_i2c_driver);
+
+MODULE_DESCRIPTION("Omnivision OV5645 Camera Driver");
+MODULE_AUTHOR("Todor Tomov <todor.tomov@linaro.org>");
+MODULE_LICENSE("GPL v2");
-- 
1.9.1

Re: [PATCH v3 2/2] media: Add a driver for the ov5645 camera sensor.

[kbuild test robot]

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Hi,

[auto build test ERROR on linuxtv-media/master]
[also build test ERROR on v4.7-rc1 next-20160603]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Todor-Tomov/OV5645-camera-sensor-driver/20160527-234221
base:   git://linuxtv.org/media_tree.git master
config: sparc64-allmodconfig (attached as .config)
compiler: sparc64-linux-gnu-gcc (Debian 5.3.1-8) 5.3.1 20160205
reproduce:
        wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=sparc64 

All errors (new ones prefixed by >>):

   drivers/media/i2c/ov5645.c: In function 'ov5645_probe':
>> drivers/media/i2c/ov5645.c:1279:8: error: implicit declaration of function 'media_entity_init' [-Werror=implicit-function-declaration]
     ret = media_entity_init(&ov5645->sd.entity, 1, &ov5645->pad, 0);
           ^
   cc1: some warnings being treated as errors

vim +/media_entity_init +1279 drivers/media/i2c/ov5645.c

  1273	
  1274		v4l2_i2c_subdev_init(&ov5645->sd, client, &ov5645_subdev_ops);
  1275		ov5645->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
  1276		ov5645->pad.flags = MEDIA_PAD_FL_SOURCE;
  1277		ov5645->sd.internal_ops = &ov5645_subdev_internal_ops;
  1278	
> 1279		ret = media_entity_init(&ov5645->sd.entity, 1, &ov5645->pad, 0);
  1280		if (ret < 0) {
  1281			dev_err(dev, "could not register media entity\n");
  1282			goto free_ctrl;

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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