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.to...@linaro.org>
---
.../devicetree/bindings/media/i2c/ov5645.txt | 54 +
drivers/media/i2c/Kconfig | 11 +
drivers/media/i2c/Makefile | 1 +
drivers/media/i2c/ov5645.c | 1344 ++++++++++++++++++++
4 files changed, 1410 insertions(+)
create mode 100644 Documentation/devicetree/bindings/media/i2c/ov5645.txt
create mode 100644 drivers/media/i2c/ov5645.c
diff --git a/Documentation/devicetree/bindings/media/i2c/ov5645.txt
b/Documentation/devicetree/bindings/media/i2c/ov5645.txt
new file mode 100644
index 0000000..1d65fa8
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/i2c/ov5645.txt
@@ -0,0 +1,54 @@
+* 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 SCCB
+interface.
+
+Required Properties:
+- compatible: value should be "ovti,ov5645"
+- clocks: reference to the xclk clock
+- clock-names: should be "xclk"
+- clock-rates: the xclk clock frequency
+
+Optional Properties:
+- reset-gpio: Chip reset GPIO
+- pwdn-gpio: Chip power down GPIO
+- DOVDD-supply: Chip IO regulator
+- DVDD-supply: Chip core regulator
+- AVDD-supply: Chip analog 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>;
+
+ pwdn-gpio = <&gpio1 6 GPIO_ACTIVE_LOW>;
+ reset-gpio = <&gpio5 20 GPIO_ACTIVE_LOW>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&camera_rear_default>;
+
+ clocks = <&clks 200>;
+ clock-names = "xclk";
+ clock-rates = <23880000>;
+
+ DOVDD-supply = <&camera_dovdd_1v8>;
+ AVDD-supply = <&camera_avdd_2v8>;
+ DVDD-supply = <&camera_dvdd_1v2>;
+
+ port {
+ ov5645_ep: endpoint {
+ clock-lanes = <1>;
+ data-lanes = <0 2>;
+ remote-endpoint = <&csi0_ep>;
+ };
+ };
+ };
+ };
diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig
index 521bbf1..aa17eba 100644
--- a/drivers/media/i2c/Kconfig
+++ b/drivers/media/i2c/Kconfig
@@ -490,6 +490,17 @@ 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 I2C && VIDEO_V4L2
+ 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..bae07e4
--- /dev/null
+++ b/drivers/media/i2c/ov5645.c
@@ -0,0 +1,1344 @@
+/*
+ * 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/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/ctype.h>
+#include <linux/types.h>
+#include <linux/gpio.h>
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/i2c.h>
+#include <linux/of_device.h>
+#include <linux/of_gpio.h>
+#include <linux/regulator/consumer.h>
+#include <linux/clk.h>
+#include <linux/clk-provider.h>
+#include <linux/clkdev.h>
+#include <media/v4l2-subdev.h>
+#include <media/v4l2-of.h>
+#include <media/v4l2-ctrls.h>
+
+#define OV5645_VOLTAGE_ANALOG 2800000
+#define OV5645_VOLTAGE_DIGITAL_CORE 1500000
+#define OV5645_VOLTAGE_DIGITAL_IO 1800000
+
+#define OV5645_XCLK_MIN 6000000
+#define OV5645_XCLK_MAX 24000000
+
+#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 (1 << 0)
+#define OV5645_AEC_PK_MANUAL 0x3503
+#define OV5645_AEC_MANUAL_ENABLE (1 << 0)
+#define OV5645_AGC_MANUAL_ENABLE (1 << 1)
+#define OV5645_TIMING_TC_REG20 0x3820
+#define OV5645_SENSOR_VFLIP (1 << 1)
+#define OV5645_ISP_VFLIP (1 << 2)
+#define OV5645_TIMING_TC_REG21 0x3821
+#define OV5645_SENSOR_MIRROR (1 << 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 (1 << 7)
+#define OV5645_SDE_SAT_U 0x5583
+#define OV5645_SDE_SAT_V 0x5584
+
+enum ov5645_mode {
+ ov5645_mode_min = 0,
+ ov5645_mode_sxga_1280_960 = 0,
+ ov5645_mode_1080p_1920_1080 = 1,
+ ov5645_mode_full_2592_1944 = 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 *init_data_ptr;
+ u32 init_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;
+ int xclk_freq;
+
+ 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_count */
+ int power_count;
+
+ int pwdn_gpio;
+ int 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] = {
+ {ov5645_mode_sxga_1280_960, 1280, 960,
+ ov5645_setting_sxga,
+ ARRAY_SIZE(ov5645_setting_sxga)},
+ {ov5645_mode_1080p_1920_1080, 1920, 1080,
+ ov5645_setting_1080P,
+ ARRAY_SIZE(ov5645_setting_1080P)},
+ {ov5645_mode_full_2592_1944, 2592, 1944,
+ ov5645_setting_full,
+ ARRAY_SIZE(ov5645_setting_full)},
+};
+
+static void ov5645_regulators_get(struct ov5645 *ov5645)
+{
+ ov5645->io_regulator = devm_regulator_get(ov5645->dev, "DOVDD");
+ if (IS_ERR(ov5645->io_regulator)) {
+ ov5645->io_regulator = NULL;
+ dev_dbg(ov5645->dev, "cannot get io voltage\n");
+ } else {
+ regulator_set_voltage(ov5645->io_regulator,
+ OV5645_VOLTAGE_DIGITAL_IO,
+ OV5645_VOLTAGE_DIGITAL_IO);
+ }
+
+ ov5645->core_regulator = devm_regulator_get(ov5645->dev, "DVDD");
+ if (IS_ERR(ov5645->core_regulator)) {
+ ov5645->core_regulator = NULL;
+ dev_dbg(ov5645->dev, "cannot get core voltage\n");
+ } else {
+ regulator_set_voltage(ov5645->core_regulator,
+ OV5645_VOLTAGE_DIGITAL_CORE,
+ OV5645_VOLTAGE_DIGITAL_CORE);
+ }
+
+ ov5645->analog_regulator = devm_regulator_get(ov5645->dev, "AVDD");
+ if (IS_ERR(ov5645->analog_regulator)) {
+ ov5645->analog_regulator = NULL;
+ dev_dbg(ov5645->dev, "cannot get analog voltage\n");
+ } else {
+ regulator_set_voltage(ov5645->analog_regulator,
+ OV5645_VOLTAGE_ANALOG,
+ OV5645_VOLTAGE_ANALOG);
+ }
+}
+
+static int ov5645_regulators_enable(struct ov5645 *ov5645)
+{
+ int ret = 0;
+
+ if (ov5645->io_regulator) {
+ ret = regulator_enable(ov5645->io_regulator);
+ if (ret < 0) {
+ dev_err(ov5645->dev, "set io voltage failed\n");
+ return ret;
+ }
+ }
+
+ if (ov5645->core_regulator) {
+ ret = regulator_enable(ov5645->core_regulator);
+ if (ret) {
+ dev_err(ov5645->dev, "set core voltage failed\n");
+ goto err_disable_io;
+ }
+ }
+
+ if (ov5645->analog_regulator) {
+ 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:
+ if (ov5645->core_regulator)
+ regulator_disable(ov5645->core_regulator);
+err_disable_io:
+ if (ov5645->io_regulator)
+ regulator_disable(ov5645->io_regulator);
+
+ return ret;
+}
+
+static void ov5645_regulators_disable(struct ov5645 *ov5645)
+{
+ if (ov5645->analog_regulator)
+ regulator_disable(ov5645->analog_regulator);
+ if (ov5645->core_regulator)
+ regulator_disable(ov5645->core_regulator);
+ if (ov5645->io_regulator)
+ regulator_disable(ov5645->io_regulator);
+}
+
+static s32 ov5645_write_reg(struct ov5645 *ov5645, u16 reg, u8 val)
+{
+ u8 regbuf[3] = {0};
+
+ regbuf[0] = reg >> 8;
+ regbuf[1] = reg & 0xff;
+ regbuf[2] = val;
+
+ if (i2c_master_send(ov5645->i2c_client, regbuf, 3) < 0) {
+ dev_err(ov5645->dev, "%s:write reg error:reg=%x,val=%x\n",
+ __func__, reg, val);
+ return -1;
+ }
+
+ return 0;
+}
+
+static s32 ov5645_read_reg(struct ov5645 *ov5645, u16 reg, u8 *val)
+{
+ u8 regbuf[2] = {0};
+ u8 tmpval = 0;
+
+ regbuf[0] = reg >> 8;
+ regbuf[1] = reg & 0xff;
+
+ if (i2c_master_send(ov5645->i2c_client, regbuf, 2) != 2) {
+ dev_err(ov5645->dev, "%s:write reg error:reg=%x\n",
+ __func__, reg);
+ return -1;
+ }
+
+ if (i2c_master_recv(ov5645->i2c_client, &tmpval, 1) != 1) {
+ dev_err(ov5645->dev, "%s:read reg error:reg=%x,val=%x\n",
+ __func__, reg, tmpval);
+ return -1;
+ }
+
+ *val = tmpval;
+
+ return tmpval;
+}
+
+static int ov5645_set_aec_mode(struct ov5645 *ov5645, u32 mode)
+{
+ u8 val;
+
+ ov5645_read_reg(ov5645, OV5645_AEC_PK_MANUAL, &val);
+ 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;
+
+ ov5645_read_reg(ov5645, OV5645_AEC_PK_MANUAL, &val);
+ 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,
+ s32 num_settings)
+{
+ register u16 reg = 0;
+ register u8 val = 0;
+ int i, 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 = NULL;
+ int num_settings = 0;
+ int ret;
+
+ settings = ov5645_global_init_setting;
+ num_settings = ARRAY_SIZE(ov5645_global_init_setting);
+ ret = ov5645_set_register_array(ov5645, settings, num_settings);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static int ov5645_change_mode(struct ov5645 *ov5645, enum ov5645_mode mode)
+{
+ struct reg_value *settings = NULL;
+ s32 num_settings = 0;
+ int ret = 0;
+
+ settings = ov5645_mode_info_data[mode].init_data_ptr;
+ num_settings = ov5645_mode_info_data[mode].init_data_size;
+ ret = ov5645_set_register_array(ov5645, settings, num_settings);
+
+ return ret;
+}
+
+static void __ov5645_set_power(struct ov5645 *ov5645, bool on)
+{
+ dev_dbg(ov5645->dev, "%s: on = %d\n", __func__, on);
+
+ if (on) {
+ clk_prepare_enable(ov5645->xclk);
+ ov5645_regulators_enable(ov5645);
+ usleep_range(5000, 15000);
+ if (ov5645->pwdn_gpio)
+ gpio_set_value(ov5645->pwdn_gpio, 1);
+ usleep_range(1000, 2000);
+ if (ov5645->rst_gpio)
+ gpio_set_value(ov5645->rst_gpio, 1);
+ msleep(20);
+ } else {
+ if (ov5645->rst_gpio)
+ gpio_set_value(ov5645->rst_gpio, 0);
+ if (ov5645->pwdn_gpio)
+ gpio_set_value(ov5645->pwdn_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 the power count is modified from 0 to != 0 or from != 0 to 0,
+ * update the power state.
+ */
+ if (ov5645->power_count == !on)
+ __ov5645_set_power(ov5645, !!on);
+
+ if (on && ov5645->power_count == 0) {
+ ret = ov5645_init(ov5645);
+ if (ret < 0) {
+ dev_err(ov5645->dev, "could not set init registers\n");
+ goto exit;
+ }
+
+ ov5645_write_reg(ov5645, OV5645_SYSTEM_CTRL0,
+ OV5645_SYSTEM_CTRL0_STOP);
+ }
+
+ /* Update the power count. */
+ ov5645->power_count += on ? 1 : -1;
+ WARN_ON(ov5645->power_count < 0);
+
+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;
+
+ ov5645_read_reg(ov5645, OV5645_TIMING_TC_REG21, &val);
+ 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;
+
+ ov5645_read_reg(ov5645, OV5645_TIMING_TC_REG20, &val);
+ 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;
+
+ ov5645_read_reg(ov5645, OV5645_PRE_ISP_TEST_SETTING_1, &val);
+
+ 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;
+
+ ov5645_read_reg(ov5645, OV5645_AWB_MANUAL_CONTROL, &val);
+ 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;
+
+ 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;
+ }
+
+ 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_registered(struct v4l2_subdev *subdev)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(subdev);
+ struct ov5645 *ov5645 = to_ov5645(subdev);
+ u8 chip_id_high, chip_id_low;
+ int ret;
+
+ ov5645_s_power(&ov5645->sd, true);
+
+ 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(ov5645->dev, "could not read ID high\n");
+ ret = -ENODEV;
+ goto reg_power_off;
+ }
+ 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(ov5645->dev, "could not read ID low\n");
+ ret = -ENODEV;
+ goto reg_power_off;
+ }
+
+ dev_info(&client->dev, "OV5645 detected at address 0x%02x\n",
+ client->addr);
+
+ ov5645_s_power(&ov5645->sd, false);
+
+ return 0;
+
+reg_power_off:
+ ov5645_s_power(&ov5645->sd, false);
+ return ret;
+}
+
+static int ov5645_open(struct v4l2_subdev *subdev, struct v4l2_subdev_fh *fh)
+{
+ return ov5645_s_power(subdev, true);
+}
+
+static int ov5645_close(struct v4l2_subdev *subdev, struct v4l2_subdev_fh *fh)
+{
+ return ov5645_s_power(subdev, false);
+}
+
+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;
+ }
+ ov5645_write_reg(ov5645, OV5645_SYSTEM_CTRL0,
+ OV5645_SYSTEM_CTRL0_START);
+ } else {
+ ov5645_write_reg(ov5645, OV5645_SYSTEM_CTRL0,
+ OV5645_SYSTEM_CTRL0_STOP);
+ }
+
+ 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 = {
+ .registered = ov5645_registered,
+ .open = ov5645_open,
+ .close = ov5645_close,
+};
+
+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;
+ int ret = 0;
+
+ 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->current_mode = ov5645_mode_1080p_1920_1080;
+
+ endpoint = of_graph_get_next_endpoint(dev->of_node, NULL);
+ if (!endpoint) {
+ dev_err(dev, "endpoint node not found\n");
+ return -EINVAL;
+ }
+
+ v4l2_of_parse_endpoint(endpoint, &ov5645->ep);
+ 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) frequency */
+ ret = of_property_read_u32(dev->of_node, "clock-rates",
+ &ov5645->xclk_freq);
+ if (!ret) {
+ if (ov5645->xclk_freq < OV5645_XCLK_MIN ||
+ ov5645->xclk_freq > OV5645_XCLK_MAX) {
+ dev_err(dev, "invalid xclk frequency: %d\n",
+ ov5645->xclk_freq);
+ return -EINVAL;
+ }
+ }
+
+ /* get system clock (xclk) */
+ ov5645->xclk = devm_clk_get(dev, "xclk");
+ if (IS_ERR(ov5645->xclk)) {
+ dev_err(dev, "could not get xclk");
+ return -EINVAL;
+ }
+ clk_set_rate(ov5645->xclk, ov5645->xclk_freq);
+
+ ov5645_regulators_get(ov5645);
+
+ ret = of_get_named_gpio(dev->of_node, "reset-gpio", 0);
+ if (!gpio_is_valid(ret)) {
+ dev_dbg(dev, "no reset pin available\n");
+ ov5645->rst_gpio = 0;
+ } else {
+ ov5645->rst_gpio = ret;
+ }
+
+ if (ov5645->rst_gpio) {
+ ret = devm_gpio_request_one(dev, ov5645->rst_gpio,
+ GPIOF_OUT_INIT_LOW, "ov5645-reset");
+ if (ret < 0) {
+ dev_err(dev, "could not request reset gpio\n");
+ return ret;
+ }
+ }
+
+ ret = of_get_named_gpio(dev->of_node, "pwdn-gpio", 0);
+ if (!gpio_is_valid(ret)) {
+ dev_dbg(dev, "no powerdown pin available\n");
+ ov5645->pwdn_gpio = 0;
+ } else {
+ ov5645->pwdn_gpio = ret;
+ }
+
+ if (ov5645->pwdn_gpio) {
+ ret = devm_gpio_request_one(dev, ov5645->pwdn_gpio,
+ GPIOF_OUT_INIT_LOW, "ov5645-pwdn");
+ if (ret < 0) {
+ dev_err(dev, "could not request powerdown gpio\n");
+ return ret;
+ }
+ }
+
+ 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;
+ }
+
+ return 0;
+
+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);
+
+#if IS_ENABLED(CONFIG_OF)
+static const struct of_device_id ov5645_of_match[] = {
+ { .compatible = "ovti,ov5645" },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, ov5645_of_match);
+#endif
+
+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.to...@linaro.org>");
+MODULE_LICENSE("GPL v2");
--
1.9.1
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