diff --git a/drivers/media/platform/Kconfig b/drivers/media/platform/Kconfig
index 9e73b11..0529e0f 100644
--- a/drivers/media/platform/Kconfig
+++ b/drivers/media/platform/Kconfig
@@ -32,6 +32,8 @@
 
 source "drivers/media/platform/omap/Kconfig"
 
+source "drivers/media/platform/mxc/capture/Kconfig"
+
 config VIDEO_SH_VOU
 	tristate "SuperH VOU video output driver"
 	depends on MEDIA_CAMERA_SUPPORT
diff --git a/drivers/media/platform/Makefile b/drivers/media/platform/Makefile
index 6101c26..560e2c4 100644
--- a/drivers/media/platform/Makefile
+++ b/drivers/media/platform/Makefile
@@ -94,6 +94,10 @@
 
 obj-$(CONFIG_VIDEO_QCOM_VENUS)		+= qcom/venus/
 
+obj-$(CONFIG_VIDEO_MEDIATEK_MIPICSI) += mtk-mipicsi/
+
 obj-y					+= meson/
 
 obj-y					+= cros-ec-cec/
+
+obj-y += mxc/capture/
diff --git a/drivers/media/platform/mxc/capture/Kconfig b/drivers/media/platform/mxc/capture/Kconfig
new file mode 100644
index 0000000..2ccf3fa
--- /dev/null
+++ b/drivers/media/platform/mxc/capture/Kconfig
@@ -0,0 +1,6 @@
+config MXC_CAMERA_OV5645_MIPI_V2
+        tristate "OmniVision ov5645 camera support using mipi"
+        depends on I2C
+        ---help---
+          If you plan to use the ov5645 Camera with mipi interface in your MXC system, say Y here.
+
diff --git a/drivers/media/platform/mxc/capture/Makefile b/drivers/media/platform/mxc/capture/Makefile
new file mode 100644
index 0000000..0a168af
--- /dev/null
+++ b/drivers/media/platform/mxc/capture/Makefile
@@ -0,0 +1,2 @@
+ov5645_camera_mipi_v2-objs := ov5645_mipi_v2.o
+obj-$(CONFIG_MXC_CAMERA_OV5645_MIPI_V2) += ov5645_camera_mipi_v2.o
diff --git a/drivers/media/platform/mxc/capture/ov5645_mipi_v2.c b/drivers/media/platform/mxc/capture/ov5645_mipi_v2.c
new file mode 100644
index 0000000..3e379b4
--- /dev/null
+++ b/drivers/media/platform/mxc/capture/ov5645_mipi_v2.c
@@ -0,0 +1,1694 @@
+/*
+ * Copyright (C) 2011-2016 Freescale Semiconductor, Inc. All Rights Reserved.
+ * Copyright 2017 NXP
+ */
+
+/*
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/ctype.h>
+#include <linux/types.h>
+#include <linux/delay.h>
+#include <linux/clk.h>
+#include <linux/of_device.h>
+#include <linux/i2c.h>
+#include <linux/of_gpio.h>
+#include <linux/pinctrl/consumer.h>
+#include <linux/regulator/consumer.h>
+#include <linux/v4l2-mediabus.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-ctrls.h>
+
+#define OV5645_VOLTAGE_ANALOG               2800000
+#define OV5645_VOLTAGE_DIGITAL_CORE         1500000
+#define OV5645_VOLTAGE_DIGITAL_IO           2800000
+
+#define MIN_FPS 15
+#define MAX_FPS 30
+#define DEFAULT_FPS 30
+
+#define OV5645_XCLK_MIN 6000000
+#define OV5645_XCLK_MAX 24000000
+
+#define OV5645_CHIP_ID_HIGH_BYTE	0x300A
+#define OV5645_CHIP_ID_LOW_BYTE		0x300B
+
+enum ov5645_mode {
+	ov5645_mode_MIN = 0,
+	ov5645_mode_VGA_640_480 = 0,
+	ov5645_mode_NTSC_720_480 = 1,
+	ov5645_mode_720P_1280_720 = 2,
+	ov5645_mode_1080P_1920_1080 = 3,
+	ov5645_mode_QSXGA_2592_1944 = 4,
+	ov5645_mode_QCIF_176_144 = 5,
+	ov5645_mode_MAX = 6,
+	ov5645_mode_INIT = 0xff, /*only for sensor init*/
+};
+
+enum ov5645_frame_rate {
+	ov5645_15_fps,
+	ov5645_30_fps
+};
+
+static int ov5645_framerates[] = {
+	[ov5645_15_fps] = 15,
+	[ov5645_30_fps] = 30,
+};
+
+struct ov5645_datafmt {
+	u32	code;
+	enum v4l2_colorspace		colorspace;
+};
+
+/* image size under 1280 * 960 are SUBSAMPLING
+ * image size upper 1280 * 960 are SCALING
+ */
+enum ov5645_downsize_mode {
+	SUBSAMPLING,
+	SCALING,
+};
+
+struct reg_value {
+	u16 u16RegAddr;
+	u8 u8Val;
+	u8 u8Mask;
+	u32 u32Delay_ms;
+};
+
+struct ov5645_mode_info {
+	enum ov5645_mode mode;
+	enum ov5645_downsize_mode dn_mode;
+	u32 width;
+	u32 height;
+	struct reg_value *init_data_ptr;
+	u32 init_data_size;
+};
+
+struct ov5645 {
+	struct v4l2_subdev		subdev;
+	struct i2c_client *i2c_client;
+	struct v4l2_pix_format pix;
+	const struct ov5645_datafmt	*fmt;
+	struct v4l2_captureparm streamcap;
+	bool on;
+
+	/* control settings */
+	int brightness;
+	int hue;
+	int contrast;
+	int saturation;
+	int red;
+	int green;
+	int blue;
+	int ae_mode;
+
+	u32 mclk;
+	u8 mclk_source;
+	struct clk *sensor_clk;
+	int csi;
+
+	void (*io_init)(void);
+};
+/*!
+ * Maintains the information on the current state of the sesor.
+ */
+static struct ov5645 ov5645_data;
+static int pwn_gpio, rst_gpio;
+
+static struct reg_value ov5645_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, 0x30, 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, 0x42, 0, 0}, {0x3c00, 0x04, 0, 300},
+};
+
+static struct reg_value ov5645_setting_30fps_VGA_640_480[] = {
+	{0x3008, 0x42, 0, 0},
+	{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, 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},
+	{0x4005, 0x1a, 0, 0}, {0x3008, 0x02, 0, 0}, {0x3503, 0x00, 0, 0},
+};
+
+static struct reg_value ov5645_setting_30fps_NTSC_720_480[] = {
+	{0x3008, 0x42, 0, 0},
+	{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},
+	{0x4005, 0x1a, 0, 0}, {0x3008, 0x02, 0, 0}, {0x3503, 0, 0, 0},
+};
+
+static struct reg_value ov5645_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 struct reg_value ov5645_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 struct reg_value ov5645_setting_15fps_QSXGA_2592_1944[] = {
+	{0x3008, 0x42, 0, 0},
+	{0x4202, 0x0f, 0, 0},	/* stream off the sensor */
+	{0x3820, 0x40, 0, 0}, {0x3821, 0x06, 0, 0}, /*disable flip*/
+	{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}, {0x3008, 0x02, 0, 0},
+	{0x4202, 0x00, 0, 0},	/* stream on the sensor */
+};
+
+static struct reg_value ov5645_setting_30fps_QCIF_176_144[] = {
+	{0x3008, 0x42, 0, 0},
+	{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 struct ov5645_mode_info ov5645_mode_info_data[2][ov5645_mode_MAX + 1] = {
+	{
+		{ov5645_mode_VGA_640_480, -1, 0, 0, NULL, 0},
+		{ov5645_mode_NTSC_720_480, -1, 0, 0, NULL, 0},
+		{ov5645_mode_720P_1280_720, -1, 0, 0, NULL, 0},
+		{ov5645_mode_1080P_1920_1080, -1, 0, 0, NULL, 0},
+		{ov5645_mode_QSXGA_2592_1944, SCALING, 2592, 1944,
+		ov5645_setting_15fps_QSXGA_2592_1944,
+		ARRAY_SIZE(ov5645_setting_15fps_QSXGA_2592_1944)},
+		{ov5645_mode_QCIF_176_144, -1, 0, 0, NULL, 0},
+	},
+	{
+		{ov5645_mode_VGA_640_480, SUBSAMPLING, 640,  480,
+		ov5645_setting_30fps_VGA_640_480,
+		ARRAY_SIZE(ov5645_setting_30fps_VGA_640_480)},
+		{ov5645_mode_NTSC_720_480, SUBSAMPLING, 720, 480,
+		ov5645_setting_30fps_NTSC_720_480,
+		ARRAY_SIZE(ov5645_setting_30fps_NTSC_720_480)},
+		{ov5645_mode_720P_1280_720, SUBSAMPLING, 1280, 720,
+		ov5645_setting_30fps_720P_1280_720,
+		ARRAY_SIZE(ov5645_setting_30fps_720P_1280_720)},
+		{ov5645_mode_1080P_1920_1080, SCALING, 1920, 1080,
+		ov5645_setting_30fps_1080P_1920_1080,
+		ARRAY_SIZE(ov5645_setting_30fps_1080P_1920_1080)},
+		{ov5645_mode_QSXGA_2592_1944, -1, 0, 0, NULL, 0},
+		{ov5645_mode_QCIF_176_144, SUBSAMPLING, 176, 144,
+		 ov5645_setting_30fps_QCIF_176_144,
+		 ARRAY_SIZE(ov5645_setting_30fps_QCIF_176_144)},
+	},
+};
+
+static struct regulator *io_regulator;
+static struct regulator *core_regulator;
+static struct regulator *analog_regulator;
+static struct regulator *gpo_regulator;
+
+static int ov5645_probe(struct i2c_client *adapter,
+				const struct i2c_device_id *device_id);
+static int ov5645_remove(struct i2c_client *client);
+
+static s32 ov5645_read_reg(u16 reg, u8 *val);
+static s32 ov5645_write_reg(u16 reg, u8 val);
+
+static const struct i2c_device_id ov5645_id[] = {
+	{"ov5645_mipisubdev", 0},
+	{},
+};
+
+MODULE_DEVICE_TABLE(i2c, ov5645_id);
+
+static struct i2c_driver ov5645_i2c_driver = {
+	.driver = {
+		  .owner = THIS_MODULE,
+		  .name  = "ov5645_mipisubdev",
+		  },
+	.probe  = ov5645_probe,
+	.remove = ov5645_remove,
+	.id_table = ov5645_id,
+};
+
+static const struct ov5645_datafmt ov5645_colour_fmts[] = {
+	{MEDIA_BUS_FMT_YUYV8_2X8, V4L2_COLORSPACE_JPEG},
+};
+
+static struct ov5645 *to_ov5645(const struct i2c_client *client)
+{
+	return container_of(i2c_get_clientdata(client), struct ov5645, subdev);
+}
+
+/* Find a data format by a pixel code in an array */
+static const struct ov5645_datafmt
+			*ov5645_find_datafmt(u32 code)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(ov5645_colour_fmts); i++)
+		if (ov5645_colour_fmts[i].code == code)
+			return ov5645_colour_fmts + i;
+
+	return NULL;
+}
+
+static inline void ov5645_power_down(int enable)
+{
+	if (pwn_gpio < 0)
+		return;
+
+	if (enable)
+		gpio_set_value_cansleep(pwn_gpio, 0);
+	else
+		gpio_set_value_cansleep(pwn_gpio, 1);
+
+	msleep(2);
+}
+
+static void ov5645_reset(void)
+{
+	if (rst_gpio < 0 || pwn_gpio < 0)
+		return;
+
+	/* camera reset */
+	gpio_set_value(rst_gpio, 1);
+
+	/* camera power dowmn */
+	gpio_set_value(pwn_gpio, 0);
+	msleep(5);
+
+	gpio_set_value(pwn_gpio, 1);
+	msleep(5);
+
+	gpio_set_value(rst_gpio, 0);
+	msleep(1);
+
+	gpio_set_value(rst_gpio, 1);
+	msleep(5);
+
+}
+
+static int ov5645_regulator_enable(struct device *dev)
+{
+	int ret = 0;
+
+	io_regulator = devm_regulator_get(dev, "DOVDD");
+	if (!IS_ERR(io_regulator)) {
+		regulator_set_voltage(io_regulator,
+				      OV5645_VOLTAGE_DIGITAL_IO,
+				      OV5645_VOLTAGE_DIGITAL_IO);
+		ret = regulator_enable(io_regulator);
+		if (ret) {
+			pr_err("%s:io set voltage error\n", __func__);
+			return ret;
+		} else {
+			dev_dbg(dev,
+				"%s:io set voltage ok\n", __func__);
+		}
+	} else {
+		pr_err("%s: cannot get io voltage error\n", __func__);
+		io_regulator = NULL;
+	}
+
+	core_regulator = devm_regulator_get(dev, "DVDD");
+	if (!IS_ERR(core_regulator)) {
+		regulator_set_voltage(core_regulator,
+				      OV5645_VOLTAGE_DIGITAL_CORE,
+				      OV5645_VOLTAGE_DIGITAL_CORE);
+		ret = regulator_enable(core_regulator);
+		if (ret) {
+			pr_err("%s:core set voltage error\n", __func__);
+			return ret;
+		} else {
+			dev_dbg(dev,
+				"%s:core set voltage ok\n", __func__);
+		}
+	} else {
+		core_regulator = NULL;
+		pr_err("%s: cannot get core voltage error\n", __func__);
+	}
+
+	analog_regulator = devm_regulator_get(dev, "AVDD");
+	if (!IS_ERR(analog_regulator)) {
+		regulator_set_voltage(analog_regulator,
+				      OV5645_VOLTAGE_ANALOG,
+				      OV5645_VOLTAGE_ANALOG);
+		ret = regulator_enable(analog_regulator);
+		if (ret) {
+			pr_err("%s:analog set voltage error\n",
+				__func__);
+			return ret;
+		} else {
+			dev_dbg(dev,
+				"%s:analog set voltage ok\n", __func__);
+		}
+	} else {
+		analog_regulator = NULL;
+		pr_err("%s: cannot get analog voltage error\n", __func__);
+	}
+
+	return ret;
+}
+
+static s32 ov5645_write_reg(u16 reg, u8 val)
+{
+	u8 au8Buf[3] = {0};
+
+	au8Buf[0] = reg >> 8;
+	au8Buf[1] = reg & 0xff;
+	au8Buf[2] = val;
+
+	if (i2c_master_send(ov5645_data.i2c_client, au8Buf, 3) < 0) {
+		pr_err("%s:write reg error:reg=%x,val=%x, retrying once\n",
+			__func__, reg, val);
+
+		msleep(1);
+
+		if (i2c_master_send(ov5645_data.i2c_client, au8Buf, 3) < 0) {
+			pr_err("%s:write reg error:reg=%x,val=%x, failed again, returning\n",
+				__func__, reg, val);
+			return -1;
+		}
+	}
+
+	return 0;
+}
+
+static s32 ov5645_read_reg(u16 reg, u8 *val)
+{
+	u8 au8RegBuf[2] = {0};
+	u8 u8RdVal = 0;
+
+	au8RegBuf[0] = reg >> 8;
+	au8RegBuf[1] = reg & 0xff;
+
+	if (2 != i2c_master_send(ov5645_data.i2c_client, au8RegBuf, 2)) {
+		pr_err("%s:write reg error:reg=%x\n",
+				__func__, reg);
+		return -1;
+	}
+
+	if (1 != i2c_master_recv(ov5645_data.i2c_client, &u8RdVal, 1)) {
+		pr_err("%s:read reg error:reg=%x,val=%x\n",
+				__func__, reg, u8RdVal);
+		return -1;
+	}
+
+	*val = u8RdVal;
+
+	return u8RdVal;
+}
+
+static int prev_sysclk, prev_HTS;
+static int AE_low, AE_high, AE_Target = 52;
+
+static void OV5645_stream_on(void)
+{
+	ov5645_write_reg(0x4202, 0x00);
+}
+
+static void OV5645_stream_off(void)
+{
+	ov5645_write_reg(0x4202, 0x0f);
+	ov5645_write_reg(0x3008, 0x42);
+}
+
+static int OV5645_get_sysclk(void)
+{
+	 /* calculate sysclk */
+	int xvclk = ov5645_data.mclk / 10000;
+	int temp1, temp2;
+	int Multiplier, PreDiv, VCO, SysDiv, Pll_rdiv;
+	int Bit_div2x = 1, sclk_rdiv, sysclk;
+	u8 temp;
+
+	int sclk_rdiv_map[] = {1, 2, 4, 8};
+
+	temp1 = ov5645_read_reg(0x3034, &temp);
+	temp2 = temp1 & 0x0f;
+	if (temp2 == 8 || temp2 == 10)
+		Bit_div2x = temp2 / 2;
+
+	temp1 = ov5645_read_reg(0x3035, &temp);
+	SysDiv = temp1>>4;
+	if (SysDiv == 0)
+		SysDiv = 16;
+
+	temp1 = ov5645_read_reg(0x3036, &temp);
+	Multiplier = temp1;
+
+	temp1 = ov5645_read_reg(0x3037, &temp);
+	PreDiv = temp1 & 0x0f;
+	Pll_rdiv = ((temp1 >> 4) & 0x01) + 1;
+
+	temp1 = ov5645_read_reg(0x3108, &temp);
+	temp2 = temp1 & 0x03;
+	sclk_rdiv = sclk_rdiv_map[temp2];
+
+	VCO = xvclk * Multiplier / PreDiv;
+
+	sysclk = VCO / SysDiv / Pll_rdiv * 2 / Bit_div2x / sclk_rdiv;
+
+	return sysclk;
+}
+
+static void OV5645_set_night_mode(void)
+{
+	 /* read HTS from register settings */
+	u8 mode;
+
+	ov5645_read_reg(0x3a00, &mode);
+	mode &= 0xfb;
+	ov5645_write_reg(0x3a00, mode);
+}
+
+static int OV5645_get_HTS(void)
+{
+	 /* read HTS from register settings */
+	int HTS;
+	u8 temp;
+
+	HTS = ov5645_read_reg(0x380c, &temp);
+	HTS = (HTS<<8) + ov5645_read_reg(0x380d, &temp);
+
+	return HTS;
+}
+
+static int OV5645_get_VTS(void)
+{
+	 /* read VTS from register settings */
+	int VTS;
+	u8 temp;
+
+	/* total vertical size[15:8] high byte */
+	VTS = ov5645_read_reg(0x380e, &temp);
+
+	VTS = (VTS<<8) + ov5645_read_reg(0x380f, &temp);
+
+	return VTS;
+}
+
+static int OV5645_set_VTS(int VTS)
+{
+	 /* write VTS to registers */
+	 int temp;
+
+	 temp = VTS & 0xff;
+	 ov5645_write_reg(0x380f, temp);
+
+	 temp = VTS>>8;
+	 ov5645_write_reg(0x380e, temp);
+
+	 return 0;
+}
+
+static int OV5645_get_shutter(void)
+{
+	 /* read shutter, in number of line period */
+	int shutter;
+	u8 temp;
+
+	shutter = (ov5645_read_reg(0x03500, &temp) & 0x0f);
+	shutter = (shutter<<8) + ov5645_read_reg(0x3501, &temp);
+	shutter = (shutter<<4) + (ov5645_read_reg(0x3502, &temp)>>4);
+
+	 return shutter;
+}
+
+static int OV5645_set_shutter(int shutter)
+{
+	 /* write shutter, in number of line period */
+	 int temp;
+
+	 shutter = shutter & 0xffff;
+
+	 temp = shutter & 0x0f;
+	 temp = temp<<4;
+	 ov5645_write_reg(0x3502, temp);
+
+	 temp = shutter & 0xfff;
+	 temp = temp>>4;
+	 ov5645_write_reg(0x3501, temp);
+
+	 temp = shutter>>12;
+	 ov5645_write_reg(0x3500, temp);
+
+	 return 0;
+}
+
+static int OV5645_get_gain16(void)
+{
+	 /* read gain, 16 = 1x */
+	int gain16;
+	u8 temp;
+
+	gain16 = ov5645_read_reg(0x350a, &temp) & 0x03;
+	gain16 = (gain16<<8) + ov5645_read_reg(0x350b, &temp);
+
+	return gain16;
+}
+
+static int OV5645_set_gain16(int gain16)
+{
+	/* write gain, 16 = 1x */
+	u8 temp;
+	gain16 = gain16 & 0x3ff;
+
+	temp = gain16 & 0xff;
+	ov5645_write_reg(0x350b, temp);
+
+	temp = gain16>>8;
+	ov5645_write_reg(0x350a, temp);
+
+	return 0;
+}
+
+static int OV5645_get_light_freq(void)
+{
+	/* get banding filter value */
+	int temp, temp1, light_freq = 0;
+	u8 tmp;
+
+	temp = ov5645_read_reg(0x3c01, &tmp);
+
+	if (temp & 0x80) {
+		/* manual */
+		temp1 = ov5645_read_reg(0x3c00, &tmp);
+		if (temp1 & 0x04) {
+			/* 50Hz */
+			light_freq = 50;
+		} else {
+			/* 60Hz */
+			light_freq = 60;
+		}
+	} else {
+		/* auto */
+		temp1 = ov5645_read_reg(0x3c0c, &tmp);
+		if (temp1 & 0x01) {
+			/* 50Hz */
+			light_freq = 50;
+		} else {
+			/* 60Hz */
+		}
+	}
+	return light_freq;
+}
+
+static void OV5645_set_bandingfilter(void)
+{
+	int prev_VTS;
+	int band_step60, max_band60, band_step50, max_band50;
+
+	/* read preview PCLK */
+	prev_sysclk = OV5645_get_sysclk();
+	/* read preview HTS */
+	prev_HTS = OV5645_get_HTS();
+
+	/* read preview VTS */
+	prev_VTS = OV5645_get_VTS();
+
+	/* calculate banding filter */
+	/* 60Hz */
+	band_step60 = prev_sysclk * 100/prev_HTS * 100/120;
+	ov5645_write_reg(0x3a0a, (band_step60 >> 8));
+	ov5645_write_reg(0x3a0b, (band_step60 & 0xff));
+
+	max_band60 = (int)((prev_VTS-4)/band_step60);
+	ov5645_write_reg(0x3a0d, max_band60);
+
+	/* 50Hz */
+	band_step50 = prev_sysclk * 100/prev_HTS;
+	ov5645_write_reg(0x3a08, (band_step50 >> 8));
+	ov5645_write_reg(0x3a09, (band_step50 & 0xff));
+
+	max_band50 = (int)((prev_VTS-4)/band_step50);
+	ov5645_write_reg(0x3a0e, max_band50);
+}
+
+static int OV5645_set_AE_target(int target)
+{
+	/* stable in high */
+	int fast_high, fast_low;
+	AE_low = target * 23 / 25;	/* 0.92 */
+	AE_high = target * 27 / 25;	/* 1.08 */
+
+	fast_high = AE_high<<1;
+	if (fast_high > 255)
+		fast_high = 255;
+
+	fast_low = AE_low >> 1;
+
+	ov5645_write_reg(0x3a0f, AE_high);
+	ov5645_write_reg(0x3a10, AE_low);
+	ov5645_write_reg(0x3a1b, AE_high);
+	ov5645_write_reg(0x3a1e, AE_low);
+	ov5645_write_reg(0x3a11, fast_high);
+	ov5645_write_reg(0x3a1f, fast_low);
+
+	return 0;
+}
+
+static void OV5645_turn_on_AE_AG(int enable)
+{
+	u8 ae_ag_ctrl;
+
+	ov5645_read_reg(0x3503, &ae_ag_ctrl);
+	if (enable) {
+		/* turn on auto AE/AG */
+		ae_ag_ctrl = ae_ag_ctrl & ~(0x03);
+	} else {
+		/* turn off AE/AG */
+		ae_ag_ctrl = ae_ag_ctrl | 0x03;
+	}
+	ov5645_write_reg(0x3503, ae_ag_ctrl);
+}
+
+static bool binning_on(void)
+{
+	u8 temp;
+	ov5645_read_reg(0x3821, &temp);
+	temp &= 0xfe;
+	if (temp)
+		return true;
+	else
+		return false;
+}
+
+static void ov5645_set_virtual_channel(int channel)
+{
+	u8 channel_id;
+
+	ov5645_read_reg(0x4814, &channel_id);
+	channel_id &= ~(3 << 6);
+	ov5645_write_reg(0x4814, channel_id | (channel << 6));
+}
+
+/* download ov5645 settings to sensor through i2c */
+static int ov5645_download_firmware(struct reg_value *pModeSetting, s32 ArySize)
+{
+	register u32 Delay_ms = 0;
+	register u16 RegAddr = 0;
+	register u8 Mask = 0;
+	register u8 Val = 0;
+	u8 RegVal = 0;
+	int i, retval = 0;
+
+	for (i = 0; i < ArySize; ++i, ++pModeSetting) {
+		Delay_ms = pModeSetting->u32Delay_ms;
+		RegAddr = pModeSetting->u16RegAddr;
+		Val = pModeSetting->u8Val;
+		Mask = pModeSetting->u8Mask;
+
+		if (Mask) {
+			retval = ov5645_read_reg(RegAddr, &RegVal);
+			if (retval < 0)
+				goto err;
+
+			RegVal &= ~(u8)Mask;
+			Val &= Mask;
+			Val |= RegVal;
+		}
+
+		retval = ov5645_write_reg(RegAddr, Val);
+		if (retval < 0)
+			goto err;
+
+		if (Delay_ms)
+			msleep(Delay_ms);
+	}
+err:
+	return retval;
+}
+
+/* sensor changes between scaling and subsampling
+ * go through exposure calcualtion
+ */
+static int ov5645_change_mode_exposure_calc(enum ov5645_frame_rate frame_rate,
+				enum ov5645_mode mode)
+{
+	struct reg_value *pModeSetting = NULL;
+	s32 ArySize = 0;
+	u8 average;
+	int prev_shutter, prev_gain16;
+	int cap_shutter, cap_gain16;
+	int cap_sysclk, cap_HTS, cap_VTS;
+	int light_freq, cap_bandfilt, cap_maxband;
+	long cap_gain16_shutter;
+	int retval = 0;
+
+	/* check if the input mode and frame rate is valid */
+	pModeSetting =
+		ov5645_mode_info_data[frame_rate][mode].init_data_ptr;
+	ArySize =
+		ov5645_mode_info_data[frame_rate][mode].init_data_size;
+
+	ov5645_data.pix.width =
+		ov5645_mode_info_data[frame_rate][mode].width;
+	ov5645_data.pix.height =
+		ov5645_mode_info_data[frame_rate][mode].height;
+
+	if (ov5645_data.pix.width == 0 || ov5645_data.pix.height == 0 ||
+		pModeSetting == NULL || ArySize == 0)
+		return -EINVAL;
+
+	/* auto focus */
+	/* OV5645_auto_focus();//if no af function, just skip it */
+
+	/* turn off AE/AG */
+	OV5645_turn_on_AE_AG(0);
+
+	/* read preview shutter */
+	prev_shutter = OV5645_get_shutter();
+	if ((binning_on()) && (mode != ov5645_mode_720P_1280_720)
+			&& (mode != ov5645_mode_1080P_1920_1080))
+		prev_shutter *= 2;
+
+	/* read preview gain */
+	prev_gain16 = OV5645_get_gain16();
+
+	/* get average */
+	ov5645_read_reg(0x56a1, &average);
+
+	/* turn off night mode for capture */
+	OV5645_set_night_mode();
+
+	/* turn off overlay */
+	/* ov5645_write_reg(0x3022, 0x06);//if no af function, just skip it */
+
+	OV5645_stream_off();
+
+	/* Write capture setting */
+	retval = ov5645_download_firmware(pModeSetting, ArySize);
+	if (retval < 0)
+		goto err;
+
+	/* read capture VTS */
+	cap_VTS = OV5645_get_VTS();
+	cap_HTS = OV5645_get_HTS();
+	cap_sysclk = OV5645_get_sysclk();
+
+	/* calculate capture banding filter */
+	light_freq = OV5645_get_light_freq();
+	if (light_freq == 60) {
+		/* 60Hz */
+		cap_bandfilt = cap_sysclk * 100 / cap_HTS * 100 / 120;
+	} else {
+		/* 50Hz */
+		cap_bandfilt = cap_sysclk * 100 / cap_HTS;
+	}
+	cap_maxband = (int)((cap_VTS - 4)/cap_bandfilt);
+
+	/* calculate capture shutter/gain16 */
+	if (average > AE_low && average < AE_high) {
+		/* in stable range */
+		cap_gain16_shutter =
+		  prev_gain16 * prev_shutter * cap_sysclk/prev_sysclk
+		  * prev_HTS/cap_HTS * AE_Target / average;
+	} else {
+		cap_gain16_shutter =
+		  prev_gain16 * prev_shutter * cap_sysclk/prev_sysclk
+		  * 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;
+			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;
+			cap_gain16 = cap_gain16_shutter / cap_shutter;
+		}
+	}
+
+	/* write capture gain */
+	OV5645_set_gain16(cap_gain16);
+
+	/* write capture shutter */
+	if (cap_shutter > (cap_VTS - 4)) {
+		cap_VTS = cap_shutter + 4;
+		OV5645_set_VTS(cap_VTS);
+	}
+	OV5645_set_shutter(cap_shutter);
+
+err:
+	return retval;
+}
+
+/* if sensor changes inside scaling or subsampling
+ * change mode directly
+ * */
+static int ov5645_change_mode_direct(enum ov5645_frame_rate frame_rate,
+				enum ov5645_mode mode)
+{
+	struct reg_value *pModeSetting = NULL;
+	s32 ArySize = 0;
+	int retval = 0;
+
+	/* check if the input mode and frame rate is valid */
+	pModeSetting =
+		ov5645_mode_info_data[frame_rate][mode].init_data_ptr;
+	ArySize =
+		ov5645_mode_info_data[frame_rate][mode].init_data_size;
+
+	ov5645_data.pix.width =
+		ov5645_mode_info_data[frame_rate][mode].width;
+	ov5645_data.pix.height =
+		ov5645_mode_info_data[frame_rate][mode].height;
+
+	if (ov5645_data.pix.width == 0 || ov5645_data.pix.height == 0 ||
+		pModeSetting == NULL || ArySize == 0)
+		return -EINVAL;
+
+	/* turn off AE/AG */
+	OV5645_turn_on_AE_AG(0);
+
+	OV5645_stream_off();
+
+	/* Write capture setting */
+	retval = ov5645_download_firmware(pModeSetting, ArySize);
+	if (retval < 0)
+		goto err;
+
+	OV5645_turn_on_AE_AG(1);
+
+err:
+	return retval;
+}
+
+static int ov5645_init_mode(enum ov5645_frame_rate frame_rate,
+			    enum ov5645_mode mode, enum ov5645_mode orig_mode)
+{
+	struct reg_value *pModeSetting = NULL;
+	s32 ArySize = 0;
+	int retval = 0;
+	u32 msec_wait4stable = 0;
+	enum ov5645_downsize_mode dn_mode, orig_dn_mode;
+
+	if ((mode > ov5645_mode_MAX || mode < ov5645_mode_MIN)
+		&& (mode != ov5645_mode_INIT)) {
+		pr_err("Wrong ov5645 mode detected!\n");
+		return -1;
+	}
+
+	dn_mode = ov5645_mode_info_data[frame_rate][mode].dn_mode;
+	orig_dn_mode = ov5645_mode_info_data[frame_rate][orig_mode].dn_mode;
+	if (mode == ov5645_mode_INIT) {
+		pModeSetting = ov5645_init_setting_30fps_VGA;
+		ArySize = ARRAY_SIZE(ov5645_init_setting_30fps_VGA);
+
+		ov5645_data.pix.width = 640;
+		ov5645_data.pix.height = 480;
+		retval = ov5645_download_firmware(pModeSetting, ArySize);
+		if (retval < 0)
+			goto err;
+
+		pModeSetting = ov5645_setting_30fps_VGA_640_480;
+		ArySize = ARRAY_SIZE(ov5645_setting_30fps_VGA_640_480);
+		retval = ov5645_download_firmware(pModeSetting, ArySize);
+	} else if ((dn_mode == SUBSAMPLING && orig_dn_mode == SCALING) ||
+			(dn_mode == SCALING && orig_dn_mode == SUBSAMPLING)) {
+		/* change between subsampling and scaling
+		 * go through exposure calucation */
+		retval = ov5645_change_mode_exposure_calc(frame_rate, mode);
+	} else {
+		/* change inside subsampling or scaling
+		 * download firmware directly */
+		retval = ov5645_change_mode_direct(frame_rate, mode);
+	}
+
+	if (retval < 0)
+		goto err;
+
+	OV5645_set_AE_target(AE_Target);
+	OV5645_get_light_freq();
+	OV5645_set_bandingfilter();
+	ov5645_set_virtual_channel(ov5645_data.csi);
+
+	/* add delay to wait for sensor stable */
+	if (mode == ov5645_mode_QSXGA_2592_1944) {
+		/* dump the first two frames: 1/7.5*2
+		 * the frame rate of QSXGA is 7.5fps */
+		msec_wait4stable = 267;
+	} else {
+		/* dump the first eighteen frames: 1/30*18 */
+		msec_wait4stable = 600;
+	}
+	msleep(msec_wait4stable);
+
+err:
+	return retval;
+}
+
+/*!
+ * ov5645_s_power - V4L2 sensor interface handler for VIDIOC_S_POWER ioctl
+ * @s: pointer to standard V4L2 device structure
+ * @on: indicates power mode (on or off)
+ *
+ * Turns the power on or off, depending on the value of on and returns the
+ * appropriate error code.
+ */
+static int ov5645_s_power(struct v4l2_subdev *sd, int on)
+{
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+	struct ov5645 *sensor = to_ov5645(client);
+
+	if (on && !sensor->on) {
+		if (io_regulator)
+			if (regulator_enable(io_regulator) != 0)
+				return -EIO;
+		if (core_regulator)
+			if (regulator_enable(core_regulator) != 0)
+				return -EIO;
+		if (gpo_regulator)
+			if (regulator_enable(gpo_regulator) != 0)
+				return -EIO;
+		if (analog_regulator)
+			if (regulator_enable(analog_regulator) != 0)
+				return -EIO;
+	} else if (!on && sensor->on) {
+		if (analog_regulator)
+			regulator_disable(analog_regulator);
+		if (core_regulator)
+			regulator_disable(core_regulator);
+		if (io_regulator)
+			regulator_disable(io_regulator);
+		if (gpo_regulator)
+			regulator_disable(gpo_regulator);
+	}
+
+	sensor->on = on;
+
+	return 0;
+}
+
+/*!
+ * ov5645_g_parm - V4L2 sensor interface handler for VIDIOC_G_PARM ioctl
+ * @s: pointer to standard V4L2 sub device structure
+ * @a: pointer to standard V4L2 VIDIOC_G_PARM ioctl structure
+ *
+ * Returns the sensor's video CAPTURE parameters.
+ */
+static int ov5645_g_parm(struct v4l2_subdev *sd, struct v4l2_streamparm *a)
+{
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+	struct ov5645 *sensor = to_ov5645(client);
+	struct v4l2_captureparm *cparm = &a->parm.capture;
+	int ret = 0;
+
+	switch (a->type) {
+	/* This is the only case currently handled. */
+	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+		memset(a, 0, sizeof(*a));
+		a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+		cparm->capability = sensor->streamcap.capability;
+		cparm->timeperframe = sensor->streamcap.timeperframe;
+		cparm->capturemode = sensor->streamcap.capturemode;
+		ret = 0;
+		break;
+
+	/* These are all the possible cases. */
+	case V4L2_BUF_TYPE_VIDEO_OUTPUT:
+	case V4L2_BUF_TYPE_VIDEO_OVERLAY:
+	case V4L2_BUF_TYPE_VBI_CAPTURE:
+	case V4L2_BUF_TYPE_VBI_OUTPUT:
+	case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
+	case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
+		ret = -EINVAL;
+		break;
+
+	default:
+		pr_debug("   type is unknown - %d\n", a->type);
+		ret = -EINVAL;
+		break;
+	}
+
+	return ret;
+}
+
+/*!
+ * ov5460_s_parm - V4L2 sensor interface handler for VIDIOC_S_PARM ioctl
+ * @s: pointer to standard V4L2 sub device structure
+ * @a: pointer to standard V4L2 VIDIOC_S_PARM ioctl structure
+ *
+ * Configures the sensor to use the input parameters, if possible.  If
+ * not possible, reverts to the old parameters and returns the
+ * appropriate error code.
+ */
+static int ov5645_s_parm(struct v4l2_subdev *sd, struct v4l2_streamparm *a)
+{
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+	struct ov5645 *sensor = to_ov5645(client);
+	struct v4l2_fract *timeperframe = &a->parm.capture.timeperframe;
+	u32 tgt_fps;	/* target frames per secound */
+	enum ov5645_frame_rate frame_rate;
+	enum ov5645_mode orig_mode;
+	int ret = 0;
+
+	switch (a->type) {
+	/* This is the only case currently handled. */
+	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+		/* Check that the new frame rate is allowed. */
+		if ((timeperframe->numerator == 0) ||
+		    (timeperframe->denominator == 0)) {
+			timeperframe->denominator = DEFAULT_FPS;
+			timeperframe->numerator = 1;
+		}
+
+		tgt_fps = timeperframe->denominator /
+			  timeperframe->numerator;
+
+		if (tgt_fps > MAX_FPS) {
+			timeperframe->denominator = MAX_FPS;
+			timeperframe->numerator = 1;
+		} else if (tgt_fps < MIN_FPS) {
+			timeperframe->denominator = MIN_FPS;
+			timeperframe->numerator = 1;
+		}
+
+		/* Actual frame rate we use */
+		tgt_fps = timeperframe->denominator /
+			  timeperframe->numerator;
+
+		if (tgt_fps == 15)
+			frame_rate = ov5645_15_fps;
+		else if (tgt_fps == 30)
+			frame_rate = ov5645_30_fps;
+		else {
+			pr_err(" The camera frame rate is not supported!\n");
+			return -EINVAL;
+		}
+
+		orig_mode = sensor->streamcap.capturemode;
+		ret = ov5645_init_mode(frame_rate,
+				(u32)a->parm.capture.capturemode, orig_mode);
+		if (ret < 0)
+			return ret;
+
+		sensor->streamcap.timeperframe = *timeperframe;
+		sensor->streamcap.capturemode =
+				(u32)a->parm.capture.capturemode;
+
+		break;
+
+	/* These are all the possible cases. */
+	case V4L2_BUF_TYPE_VIDEO_OUTPUT:
+	case V4L2_BUF_TYPE_VIDEO_OVERLAY:
+	case V4L2_BUF_TYPE_VBI_CAPTURE:
+	case V4L2_BUF_TYPE_VBI_OUTPUT:
+	case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
+	case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
+		pr_debug("   type is not " \
+			"V4L2_BUF_TYPE_VIDEO_CAPTURE but %d\n",
+			a->type);
+		ret = -EINVAL;
+		break;
+
+	default:
+		pr_debug("   type is unknown - %d\n", a->type);
+		ret = -EINVAL;
+		break;
+	}
+
+	return ret;
+}
+
+static int ov5645_set_fmt(struct v4l2_subdev *sd,
+			struct v4l2_subdev_pad_config *cfg,
+			struct v4l2_subdev_format *format)
+{
+	struct v4l2_mbus_framefmt *mf = &format->format;
+	const struct ov5645_datafmt *fmt = ov5645_find_datafmt(mf->code);
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+	struct ov5645 *sensor = to_ov5645(client);
+
+	if (!fmt) {
+		mf->code	= ov5645_colour_fmts[0].code;
+		mf->colorspace	= ov5645_colour_fmts[0].colorspace;
+	}
+
+	mf->field	= V4L2_FIELD_NONE;
+
+	if (format->which == V4L2_SUBDEV_FORMAT_TRY)
+		return 0;
+
+	sensor->fmt = fmt;
+
+	return 0;
+}
+
+
+static int ov5645_get_fmt(struct v4l2_subdev *sd,
+			  struct v4l2_subdev_pad_config *cfg,
+			  struct v4l2_subdev_format *format)
+{
+	struct v4l2_mbus_framefmt *mf = &format->format;
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+	struct ov5645 *sensor = to_ov5645(client);
+	const struct ov5645_datafmt *fmt = sensor->fmt;
+
+	if (format->pad)
+		return -EINVAL;
+
+	mf->code	= fmt->code;
+	mf->colorspace	= fmt->colorspace;
+	mf->field	= V4L2_FIELD_NONE;
+
+	return 0;
+}
+
+static int ov5645_enum_mbus_code(struct v4l2_subdev *sd,
+				 struct v4l2_subdev_pad_config *cfg,
+				 struct v4l2_subdev_mbus_code_enum *code)
+{
+	if (code->pad || code->index >= ARRAY_SIZE(ov5645_colour_fmts))
+		return -EINVAL;
+
+	code->code = ov5645_colour_fmts[code->index].code;
+	return 0;
+}
+
+/*!
+ * ov5645_enum_framesizes - V4L2 sensor interface handler for
+ *			   VIDIOC_ENUM_FRAMESIZES ioctl
+ * @s: pointer to standard V4L2 device structure
+ * @fsize: standard V4L2 VIDIOC_ENUM_FRAMESIZES ioctl structure
+ *
+ * Return 0 if successful, otherwise -EINVAL.
+ */
+static int ov5645_enum_framesizes(struct v4l2_subdev *sd,
+			       struct v4l2_subdev_pad_config *cfg,
+			       struct v4l2_subdev_frame_size_enum *fse)
+{
+	if (fse->index > ov5645_mode_MAX)
+		return -EINVAL;
+
+	fse->max_width =
+			max(ov5645_mode_info_data[0][fse->index].width,
+			    ov5645_mode_info_data[1][fse->index].width);
+	fse->min_width = fse->max_width;
+	fse->max_height =
+			max(ov5645_mode_info_data[0][fse->index].height,
+			    ov5645_mode_info_data[1][fse->index].height);
+	fse->min_height = fse->max_height;
+	return 0;
+}
+
+/*!
+ * ov5645_enum_frameintervals - V4L2 sensor interface handler for
+ *			       VIDIOC_ENUM_FRAMEINTERVALS ioctl
+ * @s: pointer to standard V4L2 device structure
+ * @fival: standard V4L2 VIDIOC_ENUM_FRAMEINTERVALS ioctl structure
+ *
+ * Return 0 if successful, otherwise -EINVAL.
+ */
+static int ov5645_enum_frameintervals(struct v4l2_subdev *sd,
+		struct v4l2_subdev_pad_config *cfg,
+		struct v4l2_subdev_frame_interval_enum *fie)
+{
+	int i, j, count = 0;
+
+	if (fie->index < 0 || fie->index > ov5645_mode_MAX)
+		return -EINVAL;
+
+	if (fie->width == 0 || fie->height == 0 ||
+	    fie->code == 0) {
+		pr_warning("Please assign pixel format, width and height.\n");
+		return -EINVAL;
+	}
+
+	fie->interval.numerator = 1;
+
+	count = 0;
+	for (i = 0; i < ARRAY_SIZE(ov5645_mode_info_data); i++) {
+		for (j = 0; j < (ov5645_mode_MAX + 1); j++) {
+			if (fie->width == ov5645_mode_info_data[i][j].width
+			 && fie->height == ov5645_mode_info_data[i][j].height
+			 && ov5645_mode_info_data[i][j].init_data_ptr != NULL) {
+				count++;
+			}
+			if (fie->index == (count - 1)) {
+				fie->interval.denominator =
+						ov5645_framerates[i];
+				return 0;
+			}
+		}
+	}
+
+	return -EINVAL;
+}
+
+/*!
+ * dev_init - V4L2 sensor init
+ * @s: pointer to standard V4L2 device structure
+ *
+ */
+static int init_device(void)
+{
+	u32 tgt_xclk;	/* target xclk */
+	u32 tgt_fps;	/* target frames per secound */
+	enum ov5645_frame_rate frame_rate;
+	int ret;
+
+	ov5645_data.on = true;
+
+	/* mclk */
+	tgt_xclk = ov5645_data.mclk;
+	tgt_xclk = min(tgt_xclk, (u32)OV5645_XCLK_MAX);
+	tgt_xclk = max(tgt_xclk, (u32)OV5645_XCLK_MIN);
+	ov5645_data.mclk = tgt_xclk;
+
+	pr_debug("   Setting mclk to %d MHz\n", tgt_xclk / 1000000);
+
+	/* Default camera frame rate is set in probe */
+	tgt_fps = ov5645_data.streamcap.timeperframe.denominator /
+		  ov5645_data.streamcap.timeperframe.numerator;
+
+	if (tgt_fps == 15)
+		frame_rate = ov5645_15_fps;
+	else if (tgt_fps == 30)
+		frame_rate = ov5645_30_fps;
+	else
+		return -EINVAL; /* Only support 15fps or 30fps now. */
+
+	ret = ov5645_init_mode(frame_rate, ov5645_mode_INIT, ov5645_mode_INIT);
+
+	return ret;
+}
+
+static int ov5645_s_stream(struct v4l2_subdev *sd, int enable)
+{
+	if (enable)
+		OV5645_stream_on();
+	else
+		OV5645_stream_off();
+	return 0;
+}
+
+static struct v4l2_subdev_video_ops ov5645_subdev_video_ops = {
+	.g_parm = ov5645_g_parm,
+	.s_parm = ov5645_s_parm,
+	.s_stream = ov5645_s_stream,
+};
+
+static const struct v4l2_subdev_pad_ops ov5645_subdev_pad_ops = {
+	.enum_frame_size       = ov5645_enum_framesizes,
+	.enum_frame_interval   = ov5645_enum_frameintervals,
+	.enum_mbus_code        = ov5645_enum_mbus_code,
+	.set_fmt               = ov5645_set_fmt,
+	.get_fmt               = ov5645_get_fmt,
+};
+
+static struct v4l2_subdev_core_ops ov5645_subdev_core_ops = {
+	.s_power	= ov5645_s_power,
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+	.g_register	= ov5645_get_register,
+	.s_register	= ov5645_set_register,
+#endif
+};
+
+static struct v4l2_subdev_ops ov5645_subdev_ops = {
+	.core	= &ov5645_subdev_core_ops,
+	.video	= &ov5645_subdev_video_ops,
+	.pad	= &ov5645_subdev_pad_ops,
+};
+
+
+/*!
+ * ov5645 I2C probe function
+ *
+ * @param adapter            struct i2c_adapter *
+ * @return  Error code indicating success or failure
+ */
+static int ov5645_probe(struct i2c_client *client,
+			const struct i2c_device_id *id)
+{
+	struct pinctrl *pinctrl;
+	struct device *dev = &client->dev;
+	int retval;
+	u8 chip_id_high, chip_id_low;
+
+	/* ov5645 pinctrl */
+	pinctrl = devm_pinctrl_get_select_default(dev);
+	if (IS_ERR(pinctrl))
+		dev_warn(dev, "no pin available\n");
+
+	/* request power down pin */
+	pwn_gpio = of_get_named_gpio(dev->of_node, "pwn-gpios", 0);
+	if (!gpio_is_valid(pwn_gpio))
+		dev_warn(dev, "no sensor pwdn pin available");
+	else {
+		retval = devm_gpio_request_one(dev, pwn_gpio, GPIOF_OUT_INIT_HIGH,
+						"ov5645_mipi_pwdn");
+		if (retval < 0) {
+			dev_warn(dev, "Failed to set power pin\n");
+			dev_warn(dev, "retval=%d\n", retval);
+			return retval;
+		}
+	}
+
+	/* request reset pin */
+	rst_gpio = of_get_named_gpio(dev->of_node, "rst-gpios", 0);
+	if (!gpio_is_valid(rst_gpio))
+		dev_warn(dev, "no sensor reset pin available");
+	else {
+		retval = devm_gpio_request_one(dev, rst_gpio, GPIOF_OUT_INIT_HIGH,
+						"ov5645_mipi_reset");
+		if (retval < 0) {
+			dev_warn(dev, "Failed to set reset pin\n");
+			return retval;
+		}
+	}
+
+	/* Set initial values for the sensor struct. */
+	memset(&ov5645_data, 0, sizeof(ov5645_data));
+	ov5645_data.sensor_clk = devm_clk_get(dev, "csi_mclk");
+	if (IS_ERR(ov5645_data.sensor_clk)) {
+		/* assuming clock enabled by default */
+		ov5645_data.sensor_clk = NULL;
+		dev_err(dev, "clock-frequency missing or invalid\n");
+		return PTR_ERR(ov5645_data.sensor_clk);
+	}
+
+	retval = of_property_read_u32(dev->of_node, "mclk",
+					&(ov5645_data.mclk));
+	if (retval) {
+		dev_err(dev, "mclk missing or invalid\n");
+		return retval;
+	}
+
+	retval = of_property_read_u32(dev->of_node, "mclk_source",
+					(u32 *) &(ov5645_data.mclk_source));
+	if (retval) {
+		dev_err(dev, "mclk_source missing or invalid\n");
+		return retval;
+	}
+
+	retval = of_property_read_u32(dev->of_node, "csi_id",
+					&(ov5645_data.csi));
+	if (retval) {
+		dev_err(dev, "csi id missing or invalid\n");
+		return retval;
+	}
+
+	clk_prepare_enable(ov5645_data.sensor_clk);
+
+	ov5645_data.io_init = ov5645_reset;
+	ov5645_data.i2c_client = client;
+	ov5645_data.pix.pixelformat = V4L2_PIX_FMT_YUYV;
+	ov5645_data.pix.width = 640;
+	ov5645_data.pix.height = 480;
+	ov5645_data.streamcap.capability = V4L2_MODE_HIGHQUALITY |
+					   V4L2_CAP_TIMEPERFRAME;
+	ov5645_data.streamcap.capturemode = 0;
+	ov5645_data.streamcap.timeperframe.denominator = DEFAULT_FPS;
+	ov5645_data.streamcap.timeperframe.numerator = 1;
+
+	ov5645_regulator_enable(&client->dev);
+
+	ov5645_reset();
+
+	ov5645_power_down(0);
+
+	retval = ov5645_read_reg(OV5645_CHIP_ID_HIGH_BYTE, &chip_id_high);
+	if (retval < 0 || chip_id_high != 0x56) {
+		pr_warning("camera ov5645_mipi is not found\n");
+		clk_disable_unprepare(ov5645_data.sensor_clk);
+		return -ENODEV;
+	}
+	retval = ov5645_read_reg(OV5645_CHIP_ID_LOW_BYTE, &chip_id_low);
+	if (retval < 0 || chip_id_low != 0x45) {
+		pr_warning("camera ov5645_mipi is not found\n");
+		clk_disable_unprepare(ov5645_data.sensor_clk);
+		return -ENODEV;
+	}
+
+	retval = init_device();
+	if (retval < 0) {
+		clk_disable_unprepare(ov5645_data.sensor_clk);
+		pr_warning("camera ov5645 init failed\n");
+		ov5645_power_down(1);
+		return retval;
+	}
+
+	v4l2_i2c_subdev_init(&ov5645_data.subdev, client, &ov5645_subdev_ops);
+
+	ov5645_data.subdev.grp_id = 678;
+	retval = v4l2_async_register_subdev(&ov5645_data.subdev);
+	if (retval < 0)
+		dev_err(&client->dev,
+					"%s--Async register failed, ret=%d\n", __func__, retval);
+
+	OV5645_stream_off();
+	pr_info("camera ov5645_mipi is found\n");
+	return retval;
+}
+
+/*!
+ * ov5645 I2C detach function
+ *
+ * @param client            struct i2c_client *
+ * @return  Error code indicating success or failure
+ */
+static int ov5645_remove(struct i2c_client *client)
+{
+	struct v4l2_subdev *sd = i2c_get_clientdata(client);
+
+	v4l2_async_unregister_subdev(sd);
+
+	clk_disable_unprepare(ov5645_data.sensor_clk);
+
+	ov5645_power_down(1);
+
+	if (gpo_regulator)
+		regulator_disable(gpo_regulator);
+
+	if (analog_regulator)
+		regulator_disable(analog_regulator);
+
+	if (core_regulator)
+		regulator_disable(core_regulator);
+
+	if (io_regulator)
+		regulator_disable(io_regulator);
+
+	return 0;
+}
+
+module_i2c_driver(ov5645_i2c_driver);
+
+MODULE_AUTHOR("Freescale Semiconductor, Inc.");
+MODULE_DESCRIPTION("OV5645 MIPI Camera Driver");
+MODULE_LICENSE("GPL");
+MODULE_VERSION("1.0");
+MODULE_ALIAS("CSI");