Hi Prabhakar, On Sun, Mar 08, 2015 at 11:33:27AM +0000, Lad Prabhakar wrote: > From: Benoit Parrot <bparrot@xxxxxx> > > this patch adds support for omnivision's ov2659 > sensor, the driver supports following features: > 1: Asynchronous probing > 2: DT support > 3: Media controller support > > Signed-off-by: Benoit Parrot <bparrot@xxxxxx> > Signed-off-by: Lad, Prabhakar <prabhakar.csengg@xxxxxxxxx> > --- > Sorry quick new version, I need to get this merged for next > merge window. > > Changes for v4: > 1: Renamed target frequency property to 'link-frequencies' > as per Sakari's suggestion. > 2: Changed the copyright to "GPL v2" > > v3: https://patchwork.kernel.org/patch/5959401/ > v2: https://patchwork.kernel.org/patch/5859801/ > v1: https://patchwork.linuxtv.org/patch/27919/ > > .../devicetree/bindings/media/i2c/ov2659.txt | 38 + > MAINTAINERS | 10 + > drivers/media/i2c/Kconfig | 11 + > drivers/media/i2c/Makefile | 1 + > drivers/media/i2c/ov2659.c | 1439 ++++++++++++++++++++ > include/media/ov2659.h | 33 + > 6 files changed, 1532 insertions(+) > create mode 100644 Documentation/devicetree/bindings/media/i2c/ov2659.txt > create mode 100644 drivers/media/i2c/ov2659.c > create mode 100644 include/media/ov2659.h > > diff --git a/Documentation/devicetree/bindings/media/i2c/ov2659.txt b/Documentation/devicetree/bindings/media/i2c/ov2659.txt > new file mode 100644 > index 0000000..a655500 > --- /dev/null > +++ b/Documentation/devicetree/bindings/media/i2c/ov2659.txt > @@ -0,0 +1,38 @@ > +* OV2659 1/5-Inch 2Mp SOC Camera > + > +The Omnivision OV2659 is a 1/5-inch SOC camera, with an active array size of > +1632H x 1212V. It is programmable through a SCCB. The OV2659 sensor supports > +multiple resolutions output, such as UXGA, SVGA, 720p. It also can support > +YUV422, RGB565/555 or raw RGB output formats. > + > +Required Properties: > +- compatible: Must be "ovti,ov2659" > +- reg: I2C slave address > +- clocks: reference to the xvclk input clock. > +- clock-names: should be "xvclk". > +- link-frequencies: target pixel clock frequency. > + > +For further reading on port node refer to > +Documentation/devicetree/bindings/media/video-interfaces.txt. > + > +Example: > + > + i2c0@1c22000 { > + ... > + ... > + ov2659@30 { > + compatible = "ovti,ov2659"; > + reg = <0x30>; > + > + clocks = <&clk_ov2659 0>; > + clock-names = "xvclk"; > + > + port { > + ov2659_0: endpoint { > + remote-endpoint = <&vpfe_ep>; > + link-frequencies = <70000000>; link-frequencies = /bits/ 64 <70000000>; > + }; > + }; > + }; > + ... > + }; > diff --git a/MAINTAINERS b/MAINTAINERS > index ddc5a8c..4006cc8 100644 > --- a/MAINTAINERS > +++ b/MAINTAINERS > @@ -8910,6 +8910,16 @@ T: git git://linuxtv.org/mhadli/v4l-dvb-davinci_devices.git > S: Maintained > F: drivers/media/platform/am437x/ > > +OV2659 OMNIVISION SENSOR DRIVER > +M: Lad, Prabhakar <prabhakar.csengg@xxxxxxxxx> > +L: linux-media@xxxxxxxxxxxxxxx > +W: http://linuxtv.org/ > +Q: http://patchwork.linuxtv.org/project/linux-media/list/ > +T: git git://linuxtv.org/mhadli/v4l-dvb-davinci_devices.git > +S: Maintained > +F: drivers/media/i2c/ov2659.c > +F: include/media/ov2659.h > + > SIS 190 ETHERNET DRIVER > M: Francois Romieu <romieu@xxxxxxxxxxxxx> > L: netdev@xxxxxxxxxxxxxxx > diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig > index da58c9b..6f30ea7 100644 > --- a/drivers/media/i2c/Kconfig > +++ b/drivers/media/i2c/Kconfig > @@ -466,6 +466,17 @@ config VIDEO_APTINA_PLL > config VIDEO_SMIAPP_PLL > tristate > > +config VIDEO_OV2659 > + tristate "OmniVision OV2659 sensor support" > + depends on VIDEO_V4L2 && I2C > + depends on MEDIA_CAMERA_SUPPORT > + ---help--- > + This is a Video4Linux2 sensor-level driver for the OmniVision > + OV2659 camera. > + > + To compile this driver as a module, choose M here: the > + module will be called ov2659. > + > 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 98589001..f165fae 100644 > --- a/drivers/media/i2c/Makefile > +++ b/drivers/media/i2c/Makefile > @@ -77,3 +77,4 @@ obj-$(CONFIG_VIDEO_SMIAPP_PLL) += smiapp-pll.o > obj-$(CONFIG_VIDEO_AK881X) += ak881x.o > obj-$(CONFIG_VIDEO_IR_I2C) += ir-kbd-i2c.o > obj-$(CONFIG_VIDEO_ML86V7667) += ml86v7667.o > +obj-$(CONFIG_VIDEO_OV2659) += ov2659.o > diff --git a/drivers/media/i2c/ov2659.c b/drivers/media/i2c/ov2659.c > new file mode 100644 > index 0000000..eca96b7 > --- /dev/null > +++ b/drivers/media/i2c/ov2659.c > @@ -0,0 +1,1439 @@ > +/* > + * Omnivision OV2659 CMOS Image Sensor driver > + * > + * Copyright (C) 2015 Texas Instruments, Inc. > + * > + * Benoit Parrot <bparrot@xxxxxx> > + * Lad, Prabhakar <prabhakar.csengg@xxxxxxxxx> > + * > + * This program is free software; you may redistribute it and/or modify > + * it under the terms of the GNU General Public License as published by > + * the Free Software Foundation; version 2 of the License. > + * > + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, > + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF > + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND > + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS > + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN > + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN > + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE > + * SOFTWARE. > + */ > + > +#include <linux/clk.h> > +#include <linux/delay.h> > +#include <linux/err.h> > +#include <linux/init.h> > +#include <linux/interrupt.h> > +#include <linux/io.h> > +#include <linux/i2c.h> > +#include <linux/kernel.h> > +#include <linux/media.h> > +#include <linux/module.h> > +#include <linux/of.h> > +#include <linux/of_graph.h> > +#include <linux/slab.h> > +#include <linux/uaccess.h> > +#include <linux/videodev2.h> > + > +#include <media/media-entity.h> > +#include <media/ov2659.h> > +#include <media/v4l2-common.h> > +#include <media/v4l2-ctrls.h> > +#include <media/v4l2-device.h> > +#include <media/v4l2-event.h> > +#include <media/v4l2-image-sizes.h> > +#include <media/v4l2-mediabus.h> > +#include <media/v4l2-of.h> > +#include <media/v4l2-subdev.h> > + > +#define DRIVER_NAME "ov2659" > + > +/* > + * OV2659 register definitions > + */ > +#define REG_SOFTWARE_STANDBY 0x0100 > +#define REG_SOFTWARE_RESET 0x0103 > +#define REG_IO_CTRL00 0x3000 > +#define REG_IO_CTRL01 0x3001 > +#define REG_IO_CTRL02 0x3002 > +#define REG_OUTPUT_VALUE00 0x3008 > +#define REG_OUTPUT_VALUE01 0x3009 > +#define REG_OUTPUT_VALUE02 0x300d > +#define REG_OUTPUT_SELECT00 0x300e > +#define REG_OUTPUT_SELECT01 0x300f > +#define REG_OUTPUT_SELECT02 0x3010 > +#define REG_OUTPUT_DRIVE 0x3011 > +#define REG_INPUT_READOUT00 0x302d > +#define REG_INPUT_READOUT01 0x302e > +#define REG_INPUT_READOUT02 0x302f > + > +#define REG_SC_PLL_CTRL0 0x3003 > +#define REG_SC_PLL_CTRL1 0x3004 > +#define REG_SC_PLL_CTRL2 0x3005 > +#define REG_SC_PLL_CTRL3 0x3006 > +#define REG_SC_CHIP_ID_H 0x300a > +#define REG_SC_CHIP_ID_L 0x300b > +#define REG_SC_PWC 0x3014 > +#define REG_SC_CLKRST0 0x301a > +#define REG_SC_CLKRST1 0x301b > +#define REG_SC_CLKRST2 0x301c > +#define REG_SC_CLKRST3 0x301d > +#define REG_SC_SUB_ID 0x302a > +#define REG_SC_SCCB_ID 0x302b > + > +#define REG_GROUP_ADDRESS_00 0x3200 > +#define REG_GROUP_ADDRESS_01 0x3201 > +#define REG_GROUP_ADDRESS_02 0x3202 > +#define REG_GROUP_ADDRESS_03 0x3203 > +#define REG_GROUP_ACCESS 0x3208 > + > +#define REG_AWB_R_GAIN_H 0x3400 > +#define REG_AWB_R_GAIN_L 0x3401 > +#define REG_AWB_G_GAIN_H 0x3402 > +#define REG_AWB_G_GAIN_L 0x3403 > +#define REG_AWB_B_GAIN_H 0x3404 > +#define REG_AWB_B_GAIN_L 0x3405 > +#define REG_AWB_MANUAL_CONTROL 0x3406 > + > +#define REG_TIMING_HS_H 0x3800 > +#define REG_TIMING_HS_L 0x3801 > +#define REG_TIMING_VS_H 0x3802 > +#define REG_TIMING_VS_L 0x3803 > +#define REG_TIMING_HW_H 0x3804 > +#define REG_TIMING_HW_L 0x3805 > +#define REG_TIMING_VH_H 0x3806 > +#define REG_TIMING_VH_L 0x3807 > +#define REG_TIMING_DVPHO_H 0x3808 > +#define REG_TIMING_DVPHO_L 0x3809 > +#define REG_TIMING_DVPVO_H 0x380a > +#define REG_TIMING_DVPVO_L 0x380b > +#define REG_TIMING_HTS_H 0x380c > +#define REG_TIMING_HTS_L 0x380d > +#define REG_TIMING_VTS_H 0x380e > +#define REG_TIMING_VTS_L 0x380f > +#define REG_TIMING_HOFFS_H 0x3810 > +#define REG_TIMING_HOFFS_L 0x3811 > +#define REG_TIMING_VOFFS_H 0x3812 > +#define REG_TIMING_VOFFS_L 0x3813 > +#define REG_TIMING_XINC 0x3814 > +#define REG_TIMING_YINC 0x3815 > +#define REG_TIMING_VERT_FORMAT 0x3820 > +#define REG_TIMING_HORIZ_FORMAT 0x3821 > + > +#define REG_FORMAT_CTRL00 0x4300 > + > +#define REG_VFIFO_READ_START_H 0x4608 > +#define REG_VFIFO_READ_START_L 0x4609 > + > +#define REG_DVP_CTRL02 0x4708 > + > +#define REG_ISP_CTRL00 0x5000 > +#define REG_ISP_CTRL01 0x5001 > +#define REG_ISP_CTRL02 0x5002 > + > +#define REG_LENC_RED_X0_H 0x500c > +#define REG_LENC_RED_X0_L 0x500d > +#define REG_LENC_RED_Y0_H 0x500e > +#define REG_LENC_RED_Y0_L 0x500f > +#define REG_LENC_RED_A1 0x5010 > +#define REG_LENC_RED_B1 0x5011 > +#define REG_LENC_RED_A2_B2 0x5012 > +#define REG_LENC_GREEN_X0_H 0x5013 > +#define REG_LENC_GREEN_X0_L 0x5014 > +#define REG_LENC_GREEN_Y0_H 0x5015 > +#define REG_LENC_GREEN_Y0_L 0x5016 > +#define REG_LENC_GREEN_A1 0x5017 > +#define REG_LENC_GREEN_B1 0x5018 > +#define REG_LENC_GREEN_A2_B2 0x5019 > +#define REG_LENC_BLUE_X0_H 0x501a > +#define REG_LENC_BLUE_X0_L 0x501b > +#define REG_LENC_BLUE_Y0_H 0x501c > +#define REG_LENC_BLUE_Y0_L 0x501d > +#define REG_LENC_BLUE_A1 0x501e > +#define REG_LENC_BLUE_B1 0x501f > +#define REG_LENC_BLUE_A2_B2 0x5020 > + > +#define REG_AWB_CTRL00 0x5035 > +#define REG_AWB_CTRL01 0x5036 > +#define REG_AWB_CTRL02 0x5037 > +#define REG_AWB_CTRL03 0x5038 > +#define REG_AWB_CTRL04 0x5039 > +#define REG_AWB_LOCAL_LIMIT 0x503a > +#define REG_AWB_CTRL12 0x5049 > +#define REG_AWB_CTRL13 0x504a > +#define REG_AWB_CTRL14 0x504b > + > +#define REG_SHARPENMT_THRESH1 0x5064 > +#define REG_SHARPENMT_THRESH2 0x5065 > +#define REG_SHARPENMT_OFFSET1 0x5066 > +#define REG_SHARPENMT_OFFSET2 0x5067 > +#define REG_DENOISE_THRESH1 0x5068 > +#define REG_DENOISE_THRESH2 0x5069 > +#define REG_DENOISE_OFFSET1 0x506a > +#define REG_DENOISE_OFFSET2 0x506b > +#define REG_SHARPEN_THRESH1 0x506c > +#define REG_SHARPEN_THRESH2 0x506d > +#define REG_CIP_CTRL00 0x506e > +#define REG_CIP_CTRL01 0x506f > + > +#define REG_CMX_SIGN 0x5079 > +#define REG_CMX_MISC_CTRL 0x507a > + > +#define REG_NULL 0x0000 /* Array end token */ > + > +#define OV265X_ID(_msb, _lsb) ((_msb) << 8 | (_lsb)) > +#define OV2659_ID 0x2656 > + > +struct sensor_register { > + u16 addr; > + u8 value; > +}; > + > +struct ov2659_framesize { > + u16 width; > + u16 height; > + u16 max_exp_lines; > + const struct sensor_register *regs; > +}; > + > +struct ov2659_pll_ctrl { > + u8 ctrl1; > + u8 ctrl2; > + u8 ctrl3; > +}; > + > +struct ov2659_pixfmt { > + u32 code; > + u32 colorspace; > + /* Output format Register Value (REG_FORMAT_CTRL00) */ > + struct sensor_register *format_ctrl_regs; > +}; > + > +struct pll_ctrl_reg { > + unsigned int div; > + unsigned char reg; > +}; > + > +struct ov2659 { > + struct v4l2_subdev sd; > + struct media_pad pad; > + enum v4l2_mbus_type bus_type; bus_type is unused. > + struct v4l2_mbus_framefmt format; > + unsigned int xvclk_frequency; > + const struct ov2659_platform_data *pdata; > + struct mutex lock; > + struct i2c_client *client; > + const struct ov2659_framesize *frame_size; > + struct sensor_register *format_ctrl_regs; > + struct ov2659_pll_ctrl pll; > + int streaming; > +}; > + > +static const struct sensor_register ov2659_init_regs[] = { > + {REG_IO_CTRL00, 0x03}, > + {REG_IO_CTRL01, 0xff}, > + {REG_IO_CTRL02, 0xe0}, > + {0x3633, 0x3d}, > + {0x3620, 0x02}, > + {0x3631, 0x11}, > + {0x3612, 0x04}, > + {0x3630, 0x20}, > + {0x4702, 0x02}, > + {0x370c, 0x34}, > + {REG_TIMING_HS_H, 0x00}, > + {REG_TIMING_HS_L, 0x00}, > + {REG_TIMING_VS_H, 0x00}, > + {REG_TIMING_VS_L, 0x00}, > + {REG_TIMING_HW_H, 0x06}, > + {REG_TIMING_HW_L, 0x5f}, > + {REG_TIMING_VH_H, 0x04}, > + {REG_TIMING_VH_L, 0xb7}, > + {REG_TIMING_DVPHO_H, 0x03}, > + {REG_TIMING_DVPHO_L, 0x20}, > + {REG_TIMING_DVPVO_H, 0x02}, > + {REG_TIMING_DVPVO_L, 0x58}, > + {REG_TIMING_HTS_H, 0x05}, > + {REG_TIMING_HTS_L, 0x14}, > + {REG_TIMING_VTS_H, 0x02}, > + {REG_TIMING_VTS_L, 0x68}, > + {REG_TIMING_HOFFS_L, 0x08}, > + {REG_TIMING_VOFFS_L, 0x02}, > + {REG_TIMING_XINC, 0x31}, > + {REG_TIMING_YINC, 0x31}, > + {0x3a02, 0x02}, > + {0x3a03, 0x68}, > + {0x3a08, 0x00}, > + {0x3a09, 0x5c}, > + {0x3a0a, 0x00}, > + {0x3a0b, 0x4d}, > + {0x3a0d, 0x08}, > + {0x3a0e, 0x06}, > + {0x3a14, 0x02}, > + {0x3a15, 0x28}, > + {REG_DVP_CTRL02, 0x01}, > + {0x3623, 0x00}, > + {0x3634, 0x76}, > + {0x3701, 0x44}, > + {0x3702, 0x18}, > + {0x3703, 0x24}, > + {0x3704, 0x24}, > + {0x3705, 0x0c}, > + {REG_TIMING_VERT_FORMAT, 0x81}, > + {REG_TIMING_HORIZ_FORMAT, 0x01}, > + {0x370a, 0x52}, > + {REG_VFIFO_READ_START_H, 0x00}, > + {REG_VFIFO_READ_START_L, 0x80}, > + {REG_FORMAT_CTRL00, 0x30}, > + {0x5086, 0x02}, > + {REG_ISP_CTRL00, 0xfb}, > + {REG_ISP_CTRL01, 0x1f}, > + {REG_ISP_CTRL02, 0x00}, > + {0x5025, 0x0e}, > + {0x5026, 0x18}, > + {0x5027, 0x34}, > + {0x5028, 0x4c}, > + {0x5029, 0x62}, > + {0x502a, 0x74}, > + {0x502b, 0x85}, > + {0x502c, 0x92}, > + {0x502d, 0x9e}, > + {0x502e, 0xb2}, > + {0x502f, 0xc0}, > + {0x5030, 0xcc}, > + {0x5031, 0xe0}, > + {0x5032, 0xee}, > + {0x5033, 0xf6}, > + {0x5034, 0x11}, > + {0x5070, 0x1c}, > + {0x5071, 0x5b}, > + {0x5072, 0x05}, > + {0x5073, 0x20}, > + {0x5074, 0x94}, > + {0x5075, 0xb4}, > + {0x5076, 0xb4}, > + {0x5077, 0xaf}, > + {0x5078, 0x05}, > + {REG_CMX_SIGN, 0x98}, > + {REG_CMX_MISC_CTRL, 0x21}, > + {REG_AWB_CTRL00, 0x6a}, > + {REG_AWB_CTRL01, 0x11}, > + {REG_AWB_CTRL02, 0x92}, > + {REG_AWB_CTRL03, 0x21}, > + {REG_AWB_CTRL04, 0xe1}, > + {REG_AWB_LOCAL_LIMIT, 0x01}, > + {0x503c, 0x05}, > + {0x503d, 0x08}, > + {0x503e, 0x08}, > + {0x503f, 0x64}, > + {0x5040, 0x58}, > + {0x5041, 0x2a}, > + {0x5042, 0xc5}, > + {0x5043, 0x2e}, > + {0x5044, 0x3a}, > + {0x5045, 0x3c}, > + {0x5046, 0x44}, > + {0x5047, 0xf8}, > + {0x5048, 0x08}, > + {REG_AWB_CTRL12, 0x70}, > + {REG_AWB_CTRL13, 0xf0}, > + {REG_AWB_CTRL14, 0xf0}, > + {REG_LENC_RED_X0_H, 0x03}, > + {REG_LENC_RED_X0_L, 0x20}, > + {REG_LENC_RED_Y0_H, 0x02}, > + {REG_LENC_RED_Y0_L, 0x5c}, > + {REG_LENC_RED_A1, 0x48}, > + {REG_LENC_RED_B1, 0x00}, > + {REG_LENC_RED_A2_B2, 0x66}, > + {REG_LENC_GREEN_X0_H, 0x03}, > + {REG_LENC_GREEN_X0_L, 0x30}, > + {REG_LENC_GREEN_Y0_H, 0x02}, > + {REG_LENC_GREEN_Y0_L, 0x7c}, > + {REG_LENC_GREEN_A1, 0x40}, > + {REG_LENC_GREEN_B1, 0x00}, > + {REG_LENC_GREEN_A2_B2, 0x66}, > + {REG_LENC_BLUE_X0_H, 0x03}, > + {REG_LENC_BLUE_X0_L, 0x10}, > + {REG_LENC_BLUE_Y0_H, 0x02}, > + {REG_LENC_BLUE_Y0_L, 0x7c}, > + {REG_LENC_BLUE_A1, 0x3a}, > + {REG_LENC_BLUE_B1, 0x00}, > + {REG_LENC_BLUE_A2_B2, 0x66}, > + {REG_CIP_CTRL00, 0x44}, > + {REG_SHARPENMT_THRESH1, 0x08}, > + {REG_SHARPENMT_THRESH2, 0x10}, > + {REG_SHARPENMT_OFFSET1, 0x12}, > + {REG_SHARPENMT_OFFSET2, 0x02}, > + {REG_SHARPEN_THRESH1, 0x08}, > + {REG_SHARPEN_THRESH2, 0x10}, > + {REG_CIP_CTRL01, 0xa6}, > + {REG_DENOISE_THRESH1, 0x08}, > + {REG_DENOISE_THRESH2, 0x10}, > + {REG_DENOISE_OFFSET1, 0x04}, > + {REG_DENOISE_OFFSET2, 0x12}, > + {0x507e, 0x40}, > + {0x507f, 0x20}, > + {0x507b, 0x02}, > + {REG_CMX_MISC_CTRL, 0x01}, > + {0x5084, 0x0c}, > + {0x5085, 0x3e}, > + {0x5005, 0x80}, > + {0x3a0f, 0x30}, > + {0x3a10, 0x28}, > + {0x3a1b, 0x32}, > + {0x3a1e, 0x26}, > + {0x3a11, 0x60}, > + {0x3a1f, 0x14}, > + {0x5060, 0x69}, > + {0x5061, 0x7d}, > + {0x5062, 0x7d}, > + {0x5063, 0x69}, > + {REG_NULL, 0x00} > +}; > + > +/* 1280X720 720p */ > +static struct sensor_register ov2659_720p[] = { > + {REG_TIMING_HS_H, 0x00}, > + {REG_TIMING_HS_L, 0xa0}, > + {REG_TIMING_VS_H, 0x00}, > + {REG_TIMING_VS_L, 0xf0}, > + {REG_TIMING_HW_H, 0x05}, > + {REG_TIMING_HW_L, 0xbf}, > + {REG_TIMING_VH_H, 0x03}, > + {REG_TIMING_VH_L, 0xcb}, > + {REG_TIMING_DVPHO_H, 0x05}, > + {REG_TIMING_DVPHO_L, 0x00}, > + {REG_TIMING_DVPVO_H, 0x02}, > + {REG_TIMING_DVPVO_L, 0xd0}, > + {REG_TIMING_HTS_H, 0x06}, > + {REG_TIMING_HTS_L, 0x4c}, > + {REG_TIMING_VTS_H, 0x02}, > + {REG_TIMING_VTS_L, 0xe8}, > + {REG_TIMING_HOFFS_L, 0x10}, > + {REG_TIMING_VOFFS_L, 0x06}, > + {REG_TIMING_XINC, 0x11}, > + {REG_TIMING_YINC, 0x11}, > + {REG_TIMING_VERT_FORMAT, 0x80}, > + {REG_TIMING_HORIZ_FORMAT, 0x00}, > + {0x3a03, 0xe8}, > + {0x3a09, 0x6f}, > + {0x3a0b, 0x5d}, > + {0x3a15, 0x9a}, > + {REG_NULL, 0x00} > +}; > + > +/* 1600X1200 UXGA */ > +static struct sensor_register ov2659_uxga[] = { > + {REG_TIMING_HS_H, 0x00}, > + {REG_TIMING_HS_L, 0x00}, > + {REG_TIMING_VS_H, 0x00}, > + {REG_TIMING_VS_L, 0x00}, > + {REG_TIMING_HW_H, 0x06}, > + {REG_TIMING_HW_L, 0x5f}, > + {REG_TIMING_VH_H, 0x04}, > + {REG_TIMING_VH_L, 0xbb}, > + {REG_TIMING_DVPHO_H, 0x06}, > + {REG_TIMING_DVPHO_L, 0x40}, > + {REG_TIMING_DVPVO_H, 0x04}, > + {REG_TIMING_DVPVO_L, 0xb0}, > + {REG_TIMING_HTS_H, 0x07}, > + {REG_TIMING_HTS_L, 0x9f}, > + {REG_TIMING_VTS_H, 0x04}, > + {REG_TIMING_VTS_L, 0xd0}, > + {REG_TIMING_HOFFS_L, 0x10}, > + {REG_TIMING_VOFFS_L, 0x06}, > + {REG_TIMING_XINC, 0x11}, > + {REG_TIMING_YINC, 0x11}, > + {0x3a02, 0x04}, > + {0x3a03, 0xd0}, > + {0x3a08, 0x00}, > + {0x3a09, 0xb8}, > + {0x3a0a, 0x00}, > + {0x3a0b, 0x9a}, > + {0x3a0d, 0x08}, > + {0x3a0e, 0x06}, > + {0x3a14, 0x04}, > + {0x3a15, 0x50}, > + {0x3623, 0x00}, > + {0x3634, 0x44}, > + {0x3701, 0x44}, > + {0x3702, 0x30}, > + {0x3703, 0x48}, > + {0x3704, 0x48}, > + {0x3705, 0x18}, > + {REG_TIMING_VERT_FORMAT, 0x80}, > + {REG_TIMING_HORIZ_FORMAT, 0x00}, > + {0x370a, 0x12}, > + {REG_VFIFO_READ_START_H, 0x00}, > + {REG_VFIFO_READ_START_L, 0x80}, > + {REG_ISP_CTRL02, 0x00}, > + {REG_NULL, 0x00} > +}; > + > +/* 1280X1024 SXGA */ > +static struct sensor_register ov2659_sxga[] = { > + {REG_TIMING_HS_H, 0x00}, > + {REG_TIMING_HS_L, 0x00}, > + {REG_TIMING_VS_H, 0x00}, > + {REG_TIMING_VS_L, 0x00}, > + {REG_TIMING_HW_H, 0x06}, > + {REG_TIMING_HW_L, 0x5f}, > + {REG_TIMING_VH_H, 0x04}, > + {REG_TIMING_VH_L, 0xb7}, > + {REG_TIMING_DVPHO_H, 0x05}, > + {REG_TIMING_DVPHO_L, 0x00}, > + {REG_TIMING_DVPVO_H, 0x04}, > + {REG_TIMING_DVPVO_L, 0x00}, > + {REG_TIMING_HTS_H, 0x07}, > + {REG_TIMING_HTS_L, 0x9c}, > + {REG_TIMING_VTS_H, 0x04}, > + {REG_TIMING_VTS_L, 0xd0}, > + {REG_TIMING_HOFFS_L, 0x10}, > + {REG_TIMING_VOFFS_L, 0x06}, > + {REG_TIMING_XINC, 0x11}, > + {REG_TIMING_YINC, 0x11}, > + {0x3a02, 0x02}, > + {0x3a03, 0x68}, > + {0x3a08, 0x00}, > + {0x3a09, 0x5c}, > + {0x3a0a, 0x00}, > + {0x3a0b, 0x4d}, > + {0x3a0d, 0x08}, > + {0x3a0e, 0x06}, > + {0x3a14, 0x02}, > + {0x3a15, 0x28}, > + {0x3623, 0x00}, > + {0x3634, 0x76}, > + {0x3701, 0x44}, > + {0x3702, 0x18}, > + {0x3703, 0x24}, > + {0x3704, 0x24}, > + {0x3705, 0x0c}, > + {REG_TIMING_VERT_FORMAT, 0x80}, > + {REG_TIMING_HORIZ_FORMAT, 0x00}, > + {0x370a, 0x52}, > + {REG_VFIFO_READ_START_H, 0x00}, > + {REG_VFIFO_READ_START_L, 0x80}, > + {REG_ISP_CTRL02, 0x00}, > + {REG_NULL, 0x00} > +}; > + > +/* 1024X768 SXGA */ > +static struct sensor_register ov2659_xga[] = { > + {REG_TIMING_HS_H, 0x00}, > + {REG_TIMING_HS_L, 0x00}, > + {REG_TIMING_VS_H, 0x00}, > + {REG_TIMING_VS_L, 0x00}, > + {REG_TIMING_HW_H, 0x06}, > + {REG_TIMING_HW_L, 0x5f}, > + {REG_TIMING_VH_H, 0x04}, > + {REG_TIMING_VH_L, 0xb7}, > + {REG_TIMING_DVPHO_H, 0x04}, > + {REG_TIMING_DVPHO_L, 0x00}, > + {REG_TIMING_DVPVO_H, 0x03}, > + {REG_TIMING_DVPVO_L, 0x00}, > + {REG_TIMING_HTS_H, 0x07}, > + {REG_TIMING_HTS_L, 0x9c}, > + {REG_TIMING_VTS_H, 0x04}, > + {REG_TIMING_VTS_L, 0xd0}, > + {REG_TIMING_HOFFS_L, 0x10}, > + {REG_TIMING_VOFFS_L, 0x06}, > + {REG_TIMING_XINC, 0x11}, > + {REG_TIMING_YINC, 0x11}, > + {0x3a02, 0x02}, > + {0x3a03, 0x68}, > + {0x3a08, 0x00}, > + {0x3a09, 0x5c}, > + {0x3a0a, 0x00}, > + {0x3a0b, 0x4d}, > + {0x3a0d, 0x08}, > + {0x3a0e, 0x06}, > + {0x3a14, 0x02}, > + {0x3a15, 0x28}, > + {0x3623, 0x00}, > + {0x3634, 0x76}, > + {0x3701, 0x44}, > + {0x3702, 0x18}, > + {0x3703, 0x24}, > + {0x3704, 0x24}, > + {0x3705, 0x0c}, > + {REG_TIMING_VERT_FORMAT, 0x80}, > + {REG_TIMING_HORIZ_FORMAT, 0x00}, > + {0x370a, 0x52}, > + {REG_VFIFO_READ_START_H, 0x00}, > + {REG_VFIFO_READ_START_L, 0x80}, > + {REG_ISP_CTRL02, 0x00}, > + {REG_NULL, 0x00} > +}; > + > +/* 800X600 SVGA */ > +static struct sensor_register ov2659_svga[] = { > + {REG_TIMING_HS_H, 0x00}, > + {REG_TIMING_HS_L, 0x00}, > + {REG_TIMING_VS_H, 0x00}, > + {REG_TIMING_VS_L, 0x00}, > + {REG_TIMING_HW_H, 0x06}, > + {REG_TIMING_HW_L, 0x5f}, > + {REG_TIMING_VH_H, 0x04}, > + {REG_TIMING_VH_L, 0xb7}, > + {REG_TIMING_DVPHO_H, 0x03}, > + {REG_TIMING_DVPHO_L, 0x20}, > + {REG_TIMING_DVPVO_H, 0x02}, > + {REG_TIMING_DVPVO_L, 0x58}, > + {REG_TIMING_HTS_H, 0x05}, > + {REG_TIMING_HTS_L, 0x14}, > + {REG_TIMING_VTS_H, 0x02}, > + {REG_TIMING_VTS_L, 0x68}, > + {REG_TIMING_HOFFS_L, 0x08}, > + {REG_TIMING_VOFFS_L, 0x02}, > + {REG_TIMING_XINC, 0x31}, > + {REG_TIMING_YINC, 0x31}, > + {0x3a02, 0x02}, > + {0x3a03, 0x68}, > + {0x3a08, 0x00}, > + {0x3a09, 0x5c}, > + {0x3a0a, 0x00}, > + {0x3a0b, 0x4d}, > + {0x3a0d, 0x08}, > + {0x3a0e, 0x06}, > + {0x3a14, 0x02}, > + {0x3a15, 0x28}, > + {0x3623, 0x00}, > + {0x3634, 0x76}, > + {0x3701, 0x44}, > + {0x3702, 0x18}, > + {0x3703, 0x24}, > + {0x3704, 0x24}, > + {0x3705, 0x0c}, > + {REG_TIMING_VERT_FORMAT, 0x81}, > + {REG_TIMING_HORIZ_FORMAT, 0x01}, > + {0x370a, 0x52}, > + {REG_VFIFO_READ_START_H, 0x00}, > + {REG_VFIFO_READ_START_L, 0x80}, > + {REG_ISP_CTRL02, 0x00}, > + {REG_NULL, 0x00} > +}; > + > +/* 640X480 VGA */ > +static struct sensor_register ov2659_vga[] = { > + {REG_TIMING_HS_H, 0x00}, > + {REG_TIMING_HS_L, 0x00}, > + {REG_TIMING_VS_H, 0x00}, > + {REG_TIMING_VS_L, 0x00}, > + {REG_TIMING_HW_H, 0x06}, > + {REG_TIMING_HW_L, 0x5f}, > + {REG_TIMING_VH_H, 0x04}, > + {REG_TIMING_VH_L, 0xb7}, > + {REG_TIMING_DVPHO_H, 0x02}, > + {REG_TIMING_DVPHO_L, 0x80}, > + {REG_TIMING_DVPVO_H, 0x01}, > + {REG_TIMING_DVPVO_L, 0xe0}, > + {REG_TIMING_HTS_H, 0x05}, > + {REG_TIMING_HTS_L, 0x14}, > + {REG_TIMING_VTS_H, 0x02}, > + {REG_TIMING_VTS_L, 0x68}, > + {REG_TIMING_HOFFS_L, 0x08}, > + {REG_TIMING_VOFFS_L, 0x02}, > + {REG_TIMING_XINC, 0x31}, > + {REG_TIMING_YINC, 0x31}, > + {0x3a02, 0x02}, > + {0x3a03, 0x68}, > + {0x3a08, 0x00}, > + {0x3a09, 0x5c}, > + {0x3a0a, 0x00}, > + {0x3a0b, 0x4d}, > + {0x3a0d, 0x08}, > + {0x3a0e, 0x06}, > + {0x3a14, 0x02}, > + {0x3a15, 0x28}, > + {0x3623, 0x00}, > + {0x3634, 0x76}, > + {0x3701, 0x44}, > + {0x3702, 0x18}, > + {0x3703, 0x24}, > + {0x3704, 0x24}, > + {0x3705, 0x0c}, > + {REG_TIMING_VERT_FORMAT, 0x81}, > + {REG_TIMING_HORIZ_FORMAT, 0x01}, > + {0x370a, 0x52}, > + {REG_VFIFO_READ_START_H, 0x00}, > + {REG_VFIFO_READ_START_L, 0x80}, > + {REG_ISP_CTRL02, 0x10}, > + {REG_NULL, 0x00} > +}; > + > +/* 320X240 QVGA */ > +static struct sensor_register ov2659_qvga[] = { > + {REG_TIMING_HS_H, 0x00}, > + {REG_TIMING_HS_L, 0x00}, > + {REG_TIMING_VS_H, 0x00}, > + {REG_TIMING_VS_L, 0x00}, > + {REG_TIMING_HW_H, 0x06}, > + {REG_TIMING_HW_L, 0x5f}, > + {REG_TIMING_VH_H, 0x04}, > + {REG_TIMING_VH_L, 0xb7}, > + {REG_TIMING_DVPHO_H, 0x01}, > + {REG_TIMING_DVPHO_L, 0x40}, > + {REG_TIMING_DVPVO_H, 0x00}, > + {REG_TIMING_DVPVO_L, 0xf0}, > + {REG_TIMING_HTS_H, 0x05}, > + {REG_TIMING_HTS_L, 0x14}, > + {REG_TIMING_VTS_H, 0x02}, > + {REG_TIMING_VTS_L, 0x68}, > + {REG_TIMING_HOFFS_L, 0x08}, > + {REG_TIMING_VOFFS_L, 0x02}, > + {REG_TIMING_XINC, 0x31}, > + {REG_TIMING_YINC, 0x31}, > + {0x3a02, 0x02}, > + {0x3a03, 0x68}, > + {0x3a08, 0x00}, > + {0x3a09, 0x5c}, > + {0x3a0a, 0x00}, > + {0x3a0b, 0x4d}, > + {0x3a0d, 0x08}, > + {0x3a0e, 0x06}, > + {0x3a14, 0x02}, > + {0x3a15, 0x28}, > + {0x3623, 0x00}, > + {0x3634, 0x76}, > + {0x3701, 0x44}, > + {0x3702, 0x18}, > + {0x3703, 0x24}, > + {0x3704, 0x24}, > + {0x3705, 0x0c}, > + {REG_TIMING_VERT_FORMAT, 0x81}, > + {REG_TIMING_HORIZ_FORMAT, 0x01}, > + {0x370a, 0x52}, > + {REG_VFIFO_READ_START_H, 0x00}, > + {REG_VFIFO_READ_START_L, 0x80}, > + {REG_ISP_CTRL02, 0x10}, > + {REG_NULL, 0x00} > +}; > + > +static const struct pll_ctrl_reg ctrl3[] = { > + {1, 0x00}, > + {2, 0x02}, > + {3, 0x03}, > + {4, 0x06}, > + {6, 0x0d}, > + {8, 0x0e}, > + {12, 0x0f}, > + {16, 0x12}, > + {24, 0x13}, > + {32, 0x16}, > + {48, 0x1b}, > + {64, 0x1e}, > + {96, 0x1f}, > + {0, 0x00}, > +}; > + > +static const struct pll_ctrl_reg ctrl1[] = { > + {2, 0x10}, > + {4, 0x20}, > + {6, 0x30}, > + {8, 0x40}, > + {10, 0x50}, > + {12, 0x60}, > + {14, 0x70}, > + {16, 0x80}, > + {18, 0x90}, > + {20, 0xa0}, > + {22, 0xb0}, > + {24, 0xc0}, > + {26, 0xd0}, > + {28, 0xe0}, > + {30, 0xf0}, > + {0, 0x00}, > +}; > + > +static const struct ov2659_framesize ov2659_framesizes[] = { > + { /* QVGA */ > + .width = 320, > + .height = 240, > + .regs = ov2659_qvga, > + .max_exp_lines = 248, > + }, { /* VGA */ > + .width = 640, > + .height = 480, > + .regs = ov2659_vga, > + .max_exp_lines = 498, > + }, { /* SVGA */ > + .width = 800, > + .height = 600, > + .regs = ov2659_svga, > + .max_exp_lines = 498, > + }, { /* XGA */ > + .width = 1024, > + .height = 768, > + .regs = ov2659_xga, > + .max_exp_lines = 498, > + }, { /* 720P */ > + .width = 1280, > + .height = 720, > + .regs = ov2659_720p, > + .max_exp_lines = 498, > + }, { /* SXGA */ > + .width = 1280, > + .height = 1024, > + .regs = ov2659_sxga, > + .max_exp_lines = 1048, > + }, { /* UXGA */ > + .width = 1600, > + .height = 1200, > + .regs = ov2659_uxga, > + .max_exp_lines = 498, > + }, > +}; > + > +/* YUV422 YUYV*/ > +static struct sensor_register ov2659_format_yuyv[] = { > + {REG_FORMAT_CTRL00, 0x30}, > + {REG_NULL, 0x0}, > +}; > + > +/* YUV422 UYVY */ > +static struct sensor_register ov2659_format_uyvy[] = { > + {REG_FORMAT_CTRL00, 0x32}, > + {REG_NULL, 0x0}, > +}; > + > +/* Raw Bayer BGGR */ > +static struct sensor_register ov2659_format_bggr[] = { > + {REG_FORMAT_CTRL00, 0x00}, > + {REG_NULL, 0x0} > +}; > + > +/* RGB565 */ > +static struct sensor_register ov2659_format_rgb565[] = { > + {REG_FORMAT_CTRL00, 0x60}, > + {REG_NULL, 0x0}, > +}; > + > +static const struct ov2659_pixfmt ov2659_formats[] = { > + { > + .code = MEDIA_BUS_FMT_YUYV8_2X8, > + .colorspace = V4L2_COLORSPACE_JPEG, > + .format_ctrl_regs = ov2659_format_yuyv, > + }, > + { > + .code = MEDIA_BUS_FMT_UYVY8_2X8, > + .colorspace = V4L2_COLORSPACE_JPEG, > + .format_ctrl_regs = ov2659_format_uyvy, > + }, > + { > + .code = MEDIA_BUS_FMT_RGB565_2X8_BE, > + .colorspace = V4L2_COLORSPACE_JPEG, > + .format_ctrl_regs = ov2659_format_rgb565, > + }, > + { > + .code = MEDIA_BUS_FMT_SBGGR8_1X8, > + .colorspace = V4L2_COLORSPACE_SMPTE170M, > + .format_ctrl_regs = ov2659_format_bggr, > + }, > +}; > + > +static inline struct ov2659 *to_ov2659(struct v4l2_subdev *sd) > +{ > + return container_of(sd, struct ov2659, sd); > +} > + > +/* sensor register write */ > +static int ov2659_write(struct i2c_client *client, u16 reg, u8 val) > +{ > + struct i2c_msg msg; > + u8 buf[3]; > + int ret; > + > + buf[0] = reg >> 8; > + buf[1] = reg & 0xFF; > + buf[2] = val; > + > + msg.addr = client->addr; > + msg.flags = client->flags; > + msg.buf = buf; > + msg.len = sizeof(buf); > + > + ret = i2c_transfer(client->adapter, &msg, 1); > + if (ret >= 0) > + return 0; > + > + dev_dbg(&client->dev, > + "ov2659 write reg(0x%x val:0x%x) failed !\n", reg, val); > + > + return ret; > +} > + > +/* sensor register read */ > +static int ov2659_read(struct i2c_client *client, u16 reg, u8 *val) > +{ > + struct i2c_msg msg[2]; > + u8 buf[2]; > + int ret; > + > + buf[0] = reg >> 8; > + buf[1] = reg & 0xFF; > + > + msg[0].addr = client->addr; > + msg[0].flags = client->flags; > + msg[0].buf = buf; > + msg[0].len = sizeof(buf); > + > + msg[1].addr = client->addr; > + msg[1].flags = client->flags | I2C_M_RD; > + msg[1].buf = buf; > + msg[1].len = 1; > + > + ret = i2c_transfer(client->adapter, msg, 2); > + if (ret >= 0) { > + *val = buf[0]; > + return 0; > + } > + > + dev_dbg(&client->dev, > + "ov2659 read reg(0x%x val:0x%x) failed !\n", reg, *val); > + > + return ret; > +} > + > +static int ov2659_write_array(struct i2c_client *client, > + const struct sensor_register *regs) > +{ > + int i, ret = 0; > + > + for (i = 0; ret == 0 && regs[i].addr; i++) > + ret = ov2659_write(client, regs[i].addr, regs[i].value); > + > + return ret; > +} > + > +static unsigned int ov2659_pll_calc_params(struct ov2659 *ov2659) > +{ > + const struct ov2659_platform_data *pdata = ov2659->pdata; > + u8 ctrl1_reg = 0, ctrl2_reg = 0, ctrl3_reg = 0; > + struct i2c_client *client = ov2659->client; > + unsigned int desired = pdata->link_frequency; > + u32 s_prediv = 1, s_postdiv = 1, s_mult = 1; > + u32 prediv, postdiv, mult; > + u32 bestdelta = -1; > + u32 delta, actual; > + int i, j; > + > + for (i = 0; ctrl1[i].div != 0; i++) { > + postdiv = ctrl1[i].div; > + for (j = 0; ctrl3[j].div != 0; j++) { > + prediv = ctrl3[j].div; > + for (mult = 1; mult <= 63; mult++) { > + actual = ov2659->xvclk_frequency; > + actual *= mult; > + actual /= prediv; > + actual /= postdiv; > + delta = actual - desired; > + delta = abs(delta); > + > + if ((delta < bestdelta) || (bestdelta == -1)) { > + bestdelta = delta; > + s_mult = mult; > + s_prediv = prediv; > + s_postdiv = postdiv; > + ctrl1_reg = ctrl1[i].reg; > + ctrl2_reg = mult; > + ctrl3_reg = ctrl3[j].reg; > + } > + } > + } > + } > + actual = ov2659->xvclk_frequency * (s_mult); > + actual /= (s_prediv) * (s_postdiv); Parentheses are redundant above (two lines). > + > + dev_dbg(&client->dev, "Actual osc: %u pixel_clock: %u\n", > + ov2659->xvclk_frequency, actual); > + > + ov2659->pll.ctrl1 = ctrl1_reg; > + ov2659->pll.ctrl2 = ctrl2_reg; > + ov2659->pll.ctrl3 = ctrl3_reg; > + > + dev_dbg(&client->dev, > + "Actual reg config: ctrl1_reg: %02x ctrl2_reg: %02x ctrl3_reg: %02x\n", > + ctrl1_reg, ctrl2_reg, ctrl3_reg); > + > + return actual; > +} > + > +static int ov2659_set_pixel_clock(struct ov2659 *ov2659) > +{ > + struct i2c_client *client = ov2659->client; > + struct sensor_register pll_regs[] = { > + {REG_SC_PLL_CTRL1, ov2659->pll.ctrl1}, > + {REG_SC_PLL_CTRL2, ov2659->pll.ctrl2}, > + {REG_SC_PLL_CTRL3, ov2659->pll.ctrl3}, > + {REG_NULL, 0x00}, > + }; > + > + dev_dbg(&client->dev, "%s\n", __func__); > + > + return ov2659_write_array(client, pll_regs); > +}; > + > +static void ov2659_get_default_format(struct v4l2_mbus_framefmt *format) > +{ > + format->width = ov2659_framesizes[2].width; > + format->height = ov2659_framesizes[2].height; > + format->colorspace = ov2659_formats[0].colorspace; > + format->code = ov2659_formats[0].code; > + format->field = V4L2_FIELD_NONE; > +} > + > +static void ov2659_set_streaming(struct ov2659 *ov2659, int on) > +{ > + struct i2c_client *client = ov2659->client; > + int ret; > + > + on = !!on; > + > + dev_dbg(&client->dev, "%s: on: %d\n", __func__, on); > + > + ret = ov2659_write(client, REG_SOFTWARE_STANDBY, on); > + if (ret) > + dev_err(&client->dev, "ov2659 soft standby failed\n"); > +} > + > +static int ov2659_init(struct v4l2_subdev *sd, u32 val) > +{ > + struct i2c_client *client = v4l2_get_subdevdata(sd); > + > + return ov2659_write_array(client, ov2659_init_regs); > +} > + > +/* > + * V4L2 subdev video and pad level operations > + */ > + > +static int ov2659_enum_mbus_code(struct v4l2_subdev *sd, > + struct v4l2_subdev_pad_config *cfg, > + struct v4l2_subdev_mbus_code_enum *code) > +{ > + struct i2c_client *client = v4l2_get_subdevdata(sd); > + > + dev_dbg(&client->dev, "%s:\n", __func__); > + > + if (code->index >= ARRAY_SIZE(ov2659_formats)) > + return -EINVAL; > + > + code->code = ov2659_formats[code->index].code; > + > + return 0; > +} > + > +static int ov2659_enum_frame_sizes(struct v4l2_subdev *sd, > + struct v4l2_subdev_pad_config *cfg, > + struct v4l2_subdev_frame_size_enum *fse) > +{ > + struct i2c_client *client = v4l2_get_subdevdata(sd); > + int i = ARRAY_SIZE(ov2659_formats); > + > + dev_dbg(&client->dev, "%s:\n", __func__); > + > + if (fse->index >= ARRAY_SIZE(ov2659_framesizes)) > + return -EINVAL; > + > + while (--i) > + if (fse->code == ov2659_formats[i].code) > + break; > + > + fse->code = ov2659_formats[i].code; > + > + fse->min_width = ov2659_framesizes[fse->index].width; > + fse->max_width = fse->min_width; > + fse->max_height = ov2659_framesizes[fse->index].height; > + fse->min_height = fse->max_height; > + > + return 0; > +} > + > +static int ov2659_get_fmt(struct v4l2_subdev *sd, > + struct v4l2_subdev_pad_config *cfg, > + struct v4l2_subdev_format *fmt) > +{ > + struct i2c_client *client = v4l2_get_subdevdata(sd); > + struct ov2659 *ov2659 = to_ov2659(sd); > + struct v4l2_mbus_framefmt *mf; > + > + dev_dbg(&client->dev, "ov2659_get_fmt\n"); > + > + if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { > + mf = v4l2_subdev_get_try_format(sd, cfg, 0); > + fmt->format = *mf; I think you should acquire the mutex also here. The same file handle could be accessed by multiple threads, for instance. > + return 0; > + } > + > + mutex_lock(&ov2659->lock); > + fmt->format = ov2659->format; > + mutex_unlock(&ov2659->lock); > + > + dev_dbg(&client->dev, "ov2659_get_fmt: %x %dx%d\n", > + ov2659->format.code, ov2659->format.width, > + ov2659->format.height); > + > + return 0; > +} > + > +static void __ov2659_try_frame_size(struct v4l2_mbus_framefmt *mf, > + const struct ov2659_framesize **size) > +{ > + const struct ov2659_framesize *fsize = &ov2659_framesizes[0]; > + const struct ov2659_framesize *match = NULL; > + int i = ARRAY_SIZE(ov2659_framesizes); > + unsigned int min_err = UINT_MAX; > + > + while (i--) { > + int err = abs(fsize->width - mf->width) > + + abs(fsize->height - mf->height); > + if ((err < min_err) && (fsize->regs[0].addr)) { > + min_err = err; > + match = fsize; > + } > + fsize++; > + } > + > + if (!match) > + match = &ov2659_framesizes[2]; > + > + mf->width = match->width; > + mf->height = match->height; > + > + if (size) > + *size = match; > +} > + > +static int ov2659_set_fmt(struct v4l2_subdev *sd, > + struct v4l2_subdev_pad_config *cfg, > + struct v4l2_subdev_format *fmt) > +{ > + struct i2c_client *client = v4l2_get_subdevdata(sd); > + unsigned int index = ARRAY_SIZE(ov2659_formats); > + struct v4l2_mbus_framefmt *mf = &fmt->format; > + const struct ov2659_framesize *size = NULL; > + struct ov2659 *ov2659 = to_ov2659(sd); > + > + dev_dbg(&client->dev, "ov2659_set_fmt\n"); > + > + __ov2659_try_frame_size(mf, &size); > + > + while (--index >= 0) > + if (ov2659_formats[index].code == mf->code) > + break; > + > + if (index < 0) > + return -EINVAL; > + > + mf->colorspace = V4L2_COLORSPACE_JPEG; > + mf->code = ov2659_formats[index].code; > + mf->field = V4L2_FIELD_NONE; > + > + mutex_lock(&ov2659->lock); > + > + if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { > + mf = v4l2_subdev_get_try_format(sd, cfg, fmt->pad); > + *mf = fmt->format; > + } else { > + if (ov2659->streaming) { > + mutex_unlock(&ov2659->lock); > + return -EBUSY; > + } > + > + ov2659->frame_size = size; > + ov2659->format = fmt->format; > + ov2659->format_ctrl_regs = > + ov2659_formats[index].format_ctrl_regs; > + } > + > + mutex_unlock(&ov2659->lock); > + return 0; > +} > + > +static int ov2659_set_frame_size(struct ov2659 *ov2659) > +{ > + struct i2c_client *client = ov2659->client; > + > + dev_dbg(&client->dev, "%s\n", __func__); > + > + return ov2659_write_array(ov2659->client, > + ov2659->frame_size->regs); Fits on a single line. The same in the function below. > +} > + > +static int ov2659_set_format(struct ov2659 *ov2659) > +{ > + struct i2c_client *client = ov2659->client; > + > + dev_dbg(&client->dev, "%s\n", __func__); > + > + return ov2659_write_array(ov2659->client, > + ov2659->format_ctrl_regs); > +} > + > +static int ov2659_s_stream(struct v4l2_subdev *sd, int on) > +{ > + struct i2c_client *client = v4l2_get_subdevdata(sd); > + struct ov2659 *ov2659 = to_ov2659(sd); > + int ret = 0; > + > + dev_dbg(&client->dev, "%s: on: %d\n", __func__, on); > + > + mutex_lock(&ov2659->lock); > + > + on = !!on; > + > + if (ov2659->streaming == on) > + goto unlock; > + > + if (!on) { > + /* Stop Streaming Sequence */ > + ov2659_set_streaming(ov2659, 0); > + ov2659->streaming = on; > + goto unlock; > + } > + > + ov2659_set_pixel_clock(ov2659); > + ov2659_set_frame_size(ov2659); > + ov2659_set_format(ov2659); > + ov2659_set_streaming(ov2659, 1); > + ov2659->streaming = on; > + > +unlock: > + mutex_unlock(&ov2659->lock); > + return ret; > +} > + > +/* ----------------------------------------------------------------------------- > + * V4L2 subdev internal operations > + */ > + > +static int ov2659_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) > +{ > + struct i2c_client *client = v4l2_get_subdevdata(sd); > + struct v4l2_mbus_framefmt *format = > + v4l2_subdev_get_try_format(sd, fh->pad, 0); > + > + dev_dbg(&client->dev, "%s:\n", __func__); > + > + ov2659_get_default_format(format); > + > + return 0; > +} > + > +static const struct v4l2_subdev_core_ops ov2659_subdev_core_ops = { > + .log_status = v4l2_ctrl_subdev_log_status, > + .subscribe_event = v4l2_ctrl_subdev_subscribe_event, > + .unsubscribe_event = v4l2_event_subdev_unsubscribe, > +}; > + > +static const struct v4l2_subdev_video_ops ov2659_subdev_video_ops = { > + .s_stream = ov2659_s_stream, > +}; > + > +static const struct v4l2_subdev_pad_ops ov2659_subdev_pad_ops = { > + .enum_mbus_code = ov2659_enum_mbus_code, > + .enum_frame_size = ov2659_enum_frame_sizes, > + .get_fmt = ov2659_get_fmt, > + .set_fmt = ov2659_set_fmt, > +}; > + > +static const struct v4l2_subdev_ops ov2659_subdev_ops = { > + .core = &ov2659_subdev_core_ops, > + .video = &ov2659_subdev_video_ops, > + .pad = &ov2659_subdev_pad_ops, > +}; > + > +static const struct v4l2_subdev_internal_ops ov2659_subdev_internal_ops = { > + .open = ov2659_open, > +}; > + > +static int ov2659_detect(struct v4l2_subdev *sd) > +{ > + struct i2c_client *client = v4l2_get_subdevdata(sd); > + u8 pid, ver; > + int ret; > + > + dev_dbg(&client->dev, "%s:\n", __func__); > + > + ret = ov2659_write(client, REG_SOFTWARE_RESET, 0x01); > + if (ret != 0) { > + dev_err(&client->dev, "Sensor soft reset failed\n"); > + return -ENODEV; > + } > + usleep_range(1000, 2000); > + > + ret = ov2659_init(sd, 0); > + if (ret < 0) > + return ret; > + > + /* Check sensor revision */ > + ret = ov2659_read(client, REG_SC_CHIP_ID_H, &pid); > + if (!ret) > + ret = ov2659_read(client, REG_SC_CHIP_ID_L, &ver); > + > + if (!ret) { > + unsigned short id; > + > + id = OV265X_ID(pid, ver); > + if (id != OV2659_ID) > + dev_err(&client->dev, > + "Sensor detection failed (%04X, %d)\n", > + id, ret); > + else > + dev_info(&client->dev, "Found OV%04X sensor\n", id); > + } > + > + return ret; > +} > + > +static struct ov2659_platform_data * > +ov2659_get_pdata(struct i2c_client *client) > +{ > + struct ov2659_platform_data *pdata; > + struct device_node *endpoint; > + int ret; > + > + if (!IS_ENABLED(CONFIG_OF) || !client->dev.of_node) { > + dev_err(&client->dev, "ov2659_get_pdata: DT Node found\n"); > + return client->dev.platform_data; > + } > + > + endpoint = of_graph_get_next_endpoint(client->dev.of_node, NULL); > + if (!endpoint) > + return NULL; > + > + pdata = devm_kzalloc(&client->dev, sizeof(*pdata), GFP_KERNEL); > + if (!pdata) > + goto done; > + > + ret = of_property_read_u32(endpoint, "link-frequencies", > + &pdata->link_frequency); > + if (ret < 0) { > + dev_err(&client->dev, "link-frequencies property not found\n"); > + pdata = NULL; > + } > + > +done: > + of_node_put(endpoint); > + return pdata; > +} > + > +static int ov2659_probe(struct i2c_client *client, > + const struct i2c_device_id *id) > +{ > + const struct ov2659_platform_data *pdata = ov2659_get_pdata(client); > + struct v4l2_subdev *sd; > + struct ov2659 *ov2659; > + struct clk *clk; > + int ret; > + > + if (!pdata) { > + dev_err(&client->dev, "platform data not specified\n"); > + return -EINVAL; > + } > + > + ov2659 = devm_kzalloc(&client->dev, sizeof(*ov2659), GFP_KERNEL); > + if (!ov2659) > + return -ENOMEM; > + > + ov2659->pdata = pdata; > + ov2659->client = client; > + > + clk = devm_clk_get(&client->dev, "xvclk"); > + if (IS_ERR(clk)) > + return PTR_ERR(clk); > + > + ov2659->xvclk_frequency = clk_get_rate(clk); > + if (ov2659->xvclk_frequency < 6000000 || > + ov2659->xvclk_frequency > 27000000) > + return -EINVAL; > + > + sd = &ov2659->sd; > + client->flags |= I2C_CLIENT_SCCB; > + v4l2_i2c_subdev_init(sd, client, &ov2659_subdev_ops); > + > + sd->internal_ops = &ov2659_subdev_internal_ops; > + sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE | > + V4L2_SUBDEV_FL_HAS_EVENTS; > + > +#if defined(CONFIG_MEDIA_CONTROLLER) > + ov2659->pad.flags = MEDIA_PAD_FL_SOURCE; > + sd->entity.type = MEDIA_ENT_T_V4L2_SUBDEV_SENSOR; > + ret = media_entity_init(&sd->entity, 1, &ov2659->pad, 0); > + if (ret < 0) > + return ret; > +#endif > + > + mutex_init(&ov2659->lock); > + > + ov2659_get_default_format(&ov2659->format); > + ov2659->frame_size = &ov2659_framesizes[2]; > + ov2659->format_ctrl_regs = ov2659_formats[0].format_ctrl_regs; > + > + ret = ov2659_detect(sd); > + if (ret < 0) > + goto error; > + > + /* Calculate the PLL register value needed */ > + ov2659_pll_calc_params(ov2659); > + > + ret = v4l2_async_register_subdev(&ov2659->sd); > + if (ret) > + goto error; > + > + dev_info(&client->dev, "%s sensor driver registered !!\n", sd->name); > + > + return 0; > + > +error: > +#if defined(CONFIG_MEDIA_CONTROLLER) > + media_entity_cleanup(&sd->entity); > +#endif > + mutex_destroy(&ov2659->lock); > + return ret; > +} > + > +static int ov2659_remove(struct i2c_client *client) > +{ > + struct v4l2_subdev *sd = i2c_get_clientdata(client); > + struct ov2659 *ov2659 = to_ov2659(sd); > + > + v4l2_device_unregister_subdev(sd); > +#if defined(CONFIG_MEDIA_CONTROLLER) > + media_entity_cleanup(&sd->entity); > +#endif > + mutex_destroy(&ov2659->lock); > + > + return 0; > +} > + > +static const struct i2c_device_id ov2659_id[] = { > + { "ov2659", 0 }, > + { /* sentinel */ }, > +}; > +MODULE_DEVICE_TABLE(i2c, ov2659_id); > + > +#if IS_ENABLED(CONFIG_OF) > +static const struct of_device_id ov2659_of_match[] = { > + { .compatible = "ovti,ov2659", }, > + { /* sentinel */ }, > +}; > +MODULE_DEVICE_TABLE(of, ov2659_of_match); > +#endif > + > +static struct i2c_driver ov2659_i2c_driver = { > + .driver = { > + .name = DRIVER_NAME, > + .of_match_table = of_match_ptr(ov2659_of_match), > + }, > + .probe = ov2659_probe, > + .remove = ov2659_remove, > + .id_table = ov2659_id, > +}; > + > +module_i2c_driver(ov2659_i2c_driver); > + > +MODULE_AUTHOR("Benoit Parrot <bparrot@xxxxxx>"); > +MODULE_DESCRIPTION("OV2659 CMOS Image Sensor driver"); > +MODULE_LICENSE("GPL v2"); > diff --git a/include/media/ov2659.h b/include/media/ov2659.h > new file mode 100644 > index 0000000..487cb19 > --- /dev/null > +++ b/include/media/ov2659.h > @@ -0,0 +1,33 @@ > +/* > + * Omnivision OV2659 CMOS Image Sensor driver > + * > + * Copyright (C) 2015 Texas Instruments, Inc. > + * > + * Benoit Parrot <bparrot@xxxxxx> > + * Lad, Prabhakar <prabhakar.csengg@xxxxxxxxx> > + * > + * This program is free software; you may redistribute it and/or modify > + * it under the terms of the GNU General Public License as published by > + * the Free Software Foundation; version 2 of the License. > + * > + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, > + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF > + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND > + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS > + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN > + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN > + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE > + * SOFTWARE. > + */ > + > +#ifndef OV2659_H > +#define OV2659_H > + > +/** > + * struct ov2659_platform_data - ov2659 driver platform data > + * @link_frequency: target pixel clock frequency > + */ > +struct ov2659_platform_data { > + unsigned int link_frequency; Shouldn't you have xvclk_frequency here as well? In most cases you need to set explicitly to a certain value in order to achieve the required link frequency. > +}; > +#endif /* OV2659_H */ -- Kind regards, Sakari Ailus e-mail: sakari.ailus@xxxxxx XMPP: sailus@xxxxxxxxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
