| Message ID | 1526886637-14378-2-git-send-email-bingbu.cao@intel.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Please ignore thispatch. On 2018年05月21日 15:10, bingbu.cao@intel.com wrote: > From: Jason Chen <jasonx.z.chen@intel.com> > > Add a V4L2 sub-device driver for the Sony IMX258 image sensor. > This is a camera sensor using the I2C bus for control and the > CSI-2 bus for data. > > Signed-off-by: Andy Yeh <andy.yeh@intel.com> > Signed-off-by: Alan Chiang <alanx.chiang@intel.com> > Reviewed-by: Tomasz Figa <tfiga@chromium.org> > Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> > --- > MAINTAINERS | 7 + > drivers/media/i2c/Kconfig | 11 + > drivers/media/i2c/Makefile | 1 + > drivers/media/i2c/imx258.c | 1320 ++++++++++++++++++++++++++++++++++++++++++++ > 4 files changed, 1339 insertions(+) > create mode 100644 drivers/media/i2c/imx258.c > > diff --git a/MAINTAINERS b/MAINTAINERS > index 4d6f837b2337..e73a55a6a855 100644 > --- a/MAINTAINERS > +++ b/MAINTAINERS > @@ -13069,6 +13069,13 @@ S: Maintained > F: drivers/ssb/ > F: include/linux/ssb/ > > +SONY IMX258 SENSOR DRIVER > +M: Sakari Ailus <sakari.ailus@linux.intel.com> > +L: linux-media@vger.kernel.org > +T: git git://linuxtv.org/media_tree.git > +S: Maintained > +F: drivers/media/i2c/imx258.c > + > SONY IMX274 SENSOR DRIVER > M: Leon Luo <leonl@leopardimaging.com> > L: linux-media@vger.kernel.org > diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig > index e6a721c5e3b0..1f9d7c6aa31a 100644 > --- a/drivers/media/i2c/Kconfig > +++ b/drivers/media/i2c/Kconfig > @@ -585,6 +585,17 @@ config VIDEO_APTINA_PLL > config VIDEO_SMIAPP_PLL > tristate > > +config VIDEO_IMX258 > + tristate "Sony IMX258 sensor support" > + depends on I2C && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API > + depends on MEDIA_CAMERA_SUPPORT > + ---help--- > + This is a Video4Linux2 sensor-level driver for the Sony > + IMX258 camera. > + > + To compile this driver as a module, choose M here: the > + module will be called imx258. > + > config VIDEO_IMX274 > tristate "Sony IMX274 sensor support" > depends on I2C && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API > diff --git a/drivers/media/i2c/Makefile b/drivers/media/i2c/Makefile > index 5cf15edacb2b..16fc34eda5cc 100644 > --- a/drivers/media/i2c/Makefile > +++ b/drivers/media/i2c/Makefile > @@ -102,6 +102,7 @@ obj-$(CONFIG_VIDEO_I2C) += video-i2c.o > obj-$(CONFIG_VIDEO_ML86V7667) += ml86v7667.o > obj-$(CONFIG_VIDEO_OV2659) += ov2659.o > obj-$(CONFIG_VIDEO_TC358743) += tc358743.o > +obj-$(CONFIG_VIDEO_IMX258) += imx258.o > obj-$(CONFIG_VIDEO_IMX274) += imx274.o > > obj-$(CONFIG_SDR_MAX2175) += max2175.o > diff --git a/drivers/media/i2c/imx258.c b/drivers/media/i2c/imx258.c > new file mode 100644 > index 000000000000..fad3012f4fe5 > --- /dev/null > +++ b/drivers/media/i2c/imx258.c > @@ -0,0 +1,1320 @@ > +// SPDX-License-Identifier: GPL-2.0 > +// Copyright (C) 2018 Intel Corporation > + > +#include <linux/acpi.h> > +#include <linux/delay.h> > +#include <linux/i2c.h> > +#include <linux/module.h> > +#include <linux/pm_runtime.h> > +#include <media/v4l2-ctrls.h> > +#include <media/v4l2-device.h> > +#include <asm/unaligned.h> > + > +#define IMX258_REG_VALUE_08BIT 1 > +#define IMX258_REG_VALUE_16BIT 2 > + > +#define IMX258_REG_MODE_SELECT 0x0100 > +#define IMX258_MODE_STANDBY 0x00 > +#define IMX258_MODE_STREAMING 0x01 > + > +/* Chip ID */ > +#define IMX258_REG_CHIP_ID 0x0016 > +#define IMX258_CHIP_ID 0x0258 > + > +/* V_TIMING internal */ > +#define IMX258_VTS_30FPS 0x0c98 > +#define IMX258_VTS_30FPS_2K 0x0638 > +#define IMX258_VTS_30FPS_VGA 0x034c > +#define IMX258_VTS_MAX 0xffff > + > +/*Frame Length Line*/ > +#define IMX258_FLL_MIN 0x08a6 > +#define IMX258_FLL_MAX 0xffff > +#define IMX258_FLL_STEP 1 > +#define IMX258_FLL_DEFAULT 0x0c98 > + > +/* HBLANK control - read only */ > +#define IMX258_PPL_DEFAULT 5352 > + > +/* Exposure control */ > +#define IMX258_REG_EXPOSURE 0x0202 > +#define IMX258_EXPOSURE_MIN 4 > +#define IMX258_EXPOSURE_STEP 1 > +#define IMX258_EXPOSURE_DEFAULT 0x640 > +#define IMX258_EXPOSURE_MAX 65535 > + > +/* Analog gain control */ > +#define IMX258_REG_ANALOG_GAIN 0x0204 > +#define IMX258_ANA_GAIN_MIN 0 > +#define IMX258_ANA_GAIN_MAX 0x1fff > +#define IMX258_ANA_GAIN_STEP 1 > +#define IMX258_ANA_GAIN_DEFAULT 0x0 > + > +/* Digital gain control */ > +#define IMX258_REG_GR_DIGITAL_GAIN 0x020e > +#define IMX258_REG_R_DIGITAL_GAIN 0x0210 > +#define IMX258_REG_B_DIGITAL_GAIN 0x0212 > +#define IMX258_REG_GB_DIGITAL_GAIN 0x0214 > +#define IMX258_DGTL_GAIN_MIN 0 > +#define IMX258_DGTL_GAIN_MAX 4096 /* Max = 0xFFF */ > +#define IMX258_DGTL_GAIN_DEFAULT 1024 > +#define IMX258_DGTL_GAIN_STEP 1 > + > +/* Test Pattern Control */ > +#define IMX258_REG_TEST_PATTERN 0x0600 > +#define IMX258_TEST_PATTERN_DISABLE 0 > +#define IMX258_TEST_PATTERN_SOLID_COLOR 1 > +#define IMX258_TEST_PATTERN_COLOR_BARS 2 > +#define IMX258_TEST_PATTERN_GREY_COLOR 3 > +#define IMX258_TEST_PATTERN_PN9 4 > + > +/* Orientation */ > +#define REG_MIRROR_FLIP_CONTROL 0x0101 > +#define REG_CONFIG_MIRROR_FLIP 0x03 > +#define REG_CONFIG_FLIP_TEST_PATTERN 0x02 > + > +struct imx258_reg { > + u16 address; > + u8 val; > +}; > + > +struct imx258_reg_list { > + u32 num_of_regs; > + const struct imx258_reg *regs; > +}; > + > +/* Link frequency config */ > +struct imx258_link_freq_config { > + u32 pixels_per_line; > + > + /* PLL registers for this link frequency */ > + struct imx258_reg_list reg_list; > +}; > + > +/* Mode : resolution and related config&values */ > +struct imx258_mode { > + /* Frame width */ > + u32 width; > + /* Frame height */ > + u32 height; > + > + /* V-timing */ > + u32 vts_def; > + u32 vts_min; > + > + /* Index of Link frequency config to be used */ > + u32 link_freq_index; > + /* Default register values */ > + struct imx258_reg_list reg_list; > +}; > + > +/* 4208x3118 needs 1267Mbps/lane, 4 lanes */ > +static const struct imx258_reg mipi_data_rate_1267mbps[] = { > + { 0x0301, 0x05 }, > + { 0x0303, 0x02 }, > + { 0x0305, 0x03 }, > + { 0x0306, 0x00 }, > + { 0x0307, 0xC6 }, > + { 0x0309, 0x0A }, > + { 0x030B, 0x01 }, > + { 0x030D, 0x02 }, > + { 0x030E, 0x00 }, > + { 0x030F, 0xD8 }, > + { 0x0310, 0x00 }, > + { 0x0820, 0x13 }, > + { 0x0821, 0x4C }, > + { 0x0822, 0xCC }, > + { 0x0823, 0xCC }, > +}; > + > +static const struct imx258_reg mipi_data_rate_640mbps[] = { > + { 0x0301, 0x05 }, > + { 0x0303, 0x02 }, > + { 0x0305, 0x03 }, > + { 0x0306, 0x00 }, > + { 0x0307, 0x64 }, > + { 0x0309, 0x0A }, > + { 0x030B, 0x01 }, > + { 0x030D, 0x02 }, > + { 0x030E, 0x00 }, > + { 0x030F, 0xD8 }, > + { 0x0310, 0x00 }, > + { 0x0820, 0x0A }, > + { 0x0821, 0x00 }, > + { 0x0822, 0x00 }, > + { 0x0823, 0x00 }, > +}; > + > +static const struct imx258_reg mode_4208x3118_regs[] = { > + { 0x0136, 0x13 }, > + { 0x0137, 0x33 }, > + { 0x3051, 0x00 }, > + { 0x3052, 0x00 }, > + { 0x4E21, 0x14 }, > + { 0x6B11, 0xCF }, > + { 0x7FF0, 0x08 }, > + { 0x7FF1, 0x0F }, > + { 0x7FF2, 0x08 }, > + { 0x7FF3, 0x1B }, > + { 0x7FF4, 0x23 }, > + { 0x7FF5, 0x60 }, > + { 0x7FF6, 0x00 }, > + { 0x7FF7, 0x01 }, > + { 0x7FF8, 0x00 }, > + { 0x7FF9, 0x78 }, > + { 0x7FFA, 0x00 }, > + { 0x7FFB, 0x00 }, > + { 0x7FFC, 0x00 }, > + { 0x7FFD, 0x00 }, > + { 0x7FFE, 0x00 }, > + { 0x7FFF, 0x03 }, > + { 0x7F76, 0x03 }, > + { 0x7F77, 0xFE }, > + { 0x7FA8, 0x03 }, > + { 0x7FA9, 0xFE }, > + { 0x7B24, 0x81 }, > + { 0x7B25, 0x00 }, > + { 0x6564, 0x07 }, > + { 0x6B0D, 0x41 }, > + { 0x653D, 0x04 }, > + { 0x6B05, 0x8C }, > + { 0x6B06, 0xF9 }, > + { 0x6B08, 0x65 }, > + { 0x6B09, 0xFC }, > + { 0x6B0A, 0xCF }, > + { 0x6B0B, 0xD2 }, > + { 0x6700, 0x0E }, > + { 0x6707, 0x0E }, > + { 0x9104, 0x00 }, > + { 0x4648, 0x7F }, > + { 0x7420, 0x00 }, > + { 0x7421, 0x1C }, > + { 0x7422, 0x00 }, > + { 0x7423, 0xD7 }, > + { 0x5F04, 0x00 }, > + { 0x5F05, 0xED }, > + { 0x0112, 0x0A }, > + { 0x0113, 0x0A }, > + { 0x0114, 0x03 }, > + { 0x0342, 0x14 }, > + { 0x0343, 0xE8 }, > + { 0x0340, 0x0C }, > + { 0x0341, 0x50 }, > + { 0x0344, 0x00 }, > + { 0x0345, 0x00 }, > + { 0x0346, 0x00 }, > + { 0x0347, 0x00 }, > + { 0x0348, 0x10 }, > + { 0x0349, 0x6F }, > + { 0x034A, 0x0C }, > + { 0x034B, 0x2E }, > + { 0x0381, 0x01 }, > + { 0x0383, 0x01 }, > + { 0x0385, 0x01 }, > + { 0x0387, 0x01 }, > + { 0x0900, 0x00 }, > + { 0x0901, 0x11 }, > + { 0x0401, 0x00 }, > + { 0x0404, 0x00 }, > + { 0x0405, 0x10 }, > + { 0x0408, 0x00 }, > + { 0x0409, 0x00 }, > + { 0x040A, 0x00 }, > + { 0x040B, 0x00 }, > + { 0x040C, 0x10 }, > + { 0x040D, 0x70 }, > + { 0x040E, 0x0C }, > + { 0x040F, 0x30 }, > + { 0x3038, 0x00 }, > + { 0x303A, 0x00 }, > + { 0x303B, 0x10 }, > + { 0x300D, 0x00 }, > + { 0x034C, 0x10 }, > + { 0x034D, 0x70 }, > + { 0x034E, 0x0C }, > + { 0x034F, 0x30 }, > + { 0x0350, 0x01 }, > + { 0x0202, 0x0C }, > + { 0x0203, 0x46 }, > + { 0x0204, 0x00 }, > + { 0x0205, 0x00 }, > + { 0x020E, 0x01 }, > + { 0x020F, 0x00 }, > + { 0x0210, 0x01 }, > + { 0x0211, 0x00 }, > + { 0x0212, 0x01 }, > + { 0x0213, 0x00 }, > + { 0x0214, 0x01 }, > + { 0x0215, 0x00 }, > + { 0x7BCD, 0x00 }, > + { 0x94DC, 0x20 }, > + { 0x94DD, 0x20 }, > + { 0x94DE, 0x20 }, > + { 0x95DC, 0x20 }, > + { 0x95DD, 0x20 }, > + { 0x95DE, 0x20 }, > + { 0x7FB0, 0x00 }, > + { 0x9010, 0x3E }, > + { 0x9419, 0x50 }, > + { 0x941B, 0x50 }, > + { 0x9519, 0x50 }, > + { 0x951B, 0x50 }, > + { 0x3030, 0x00 }, > + { 0x3032, 0x00 }, > + { 0x0220, 0x00 }, > +}; > + > +static const struct imx258_reg mode_2104_1560_regs[] = { > + { 0x0136, 0x13 }, > + { 0x0137, 0x33 }, > + { 0x3051, 0x00 }, > + { 0x3052, 0x00 }, > + { 0x4E21, 0x14 }, > + { 0x6B11, 0xCF }, > + { 0x7FF0, 0x08 }, > + { 0x7FF1, 0x0F }, > + { 0x7FF2, 0x08 }, > + { 0x7FF3, 0x1B }, > + { 0x7FF4, 0x23 }, > + { 0x7FF5, 0x60 }, > + { 0x7FF6, 0x00 }, > + { 0x7FF7, 0x01 }, > + { 0x7FF8, 0x00 }, > + { 0x7FF9, 0x78 }, > + { 0x7FFA, 0x00 }, > + { 0x7FFB, 0x00 }, > + { 0x7FFC, 0x00 }, > + { 0x7FFD, 0x00 }, > + { 0x7FFE, 0x00 }, > + { 0x7FFF, 0x03 }, > + { 0x7F76, 0x03 }, > + { 0x7F77, 0xFE }, > + { 0x7FA8, 0x03 }, > + { 0x7FA9, 0xFE }, > + { 0x7B24, 0x81 }, > + { 0x7B25, 0x00 }, > + { 0x6564, 0x07 }, > + { 0x6B0D, 0x41 }, > + { 0x653D, 0x04 }, > + { 0x6B05, 0x8C }, > + { 0x6B06, 0xF9 }, > + { 0x6B08, 0x65 }, > + { 0x6B09, 0xFC }, > + { 0x6B0A, 0xCF }, > + { 0x6B0B, 0xD2 }, > + { 0x6700, 0x0E }, > + { 0x6707, 0x0E }, > + { 0x9104, 0x00 }, > + { 0x4648, 0x7F }, > + { 0x7420, 0x00 }, > + { 0x7421, 0x1C }, > + { 0x7422, 0x00 }, > + { 0x7423, 0xD7 }, > + { 0x5F04, 0x00 }, > + { 0x5F05, 0xED }, > + { 0x0112, 0x0A }, > + { 0x0113, 0x0A }, > + { 0x0114, 0x03 }, > + { 0x0342, 0x14 }, > + { 0x0343, 0xE8 }, > + { 0x0340, 0x06 }, > + { 0x0341, 0x38 }, > + { 0x0344, 0x00 }, > + { 0x0345, 0x00 }, > + { 0x0346, 0x00 }, > + { 0x0347, 0x00 }, > + { 0x0348, 0x10 }, > + { 0x0349, 0x6F }, > + { 0x034A, 0x0C }, > + { 0x034B, 0x2E }, > + { 0x0381, 0x01 }, > + { 0x0383, 0x01 }, > + { 0x0385, 0x01 }, > + { 0x0387, 0x01 }, > + { 0x0900, 0x01 }, > + { 0x0901, 0x12 }, > + { 0x0401, 0x01 }, > + { 0x0404, 0x00 }, > + { 0x0405, 0x20 }, > + { 0x0408, 0x00 }, > + { 0x0409, 0x02 }, > + { 0x040A, 0x00 }, > + { 0x040B, 0x00 }, > + { 0x040C, 0x10 }, > + { 0x040D, 0x6A }, > + { 0x040E, 0x06 }, > + { 0x040F, 0x18 }, > + { 0x3038, 0x00 }, > + { 0x303A, 0x00 }, > + { 0x303B, 0x10 }, > + { 0x300D, 0x00 }, > + { 0x034C, 0x08 }, > + { 0x034D, 0x38 }, > + { 0x034E, 0x06 }, > + { 0x034F, 0x18 }, > + { 0x0350, 0x01 }, > + { 0x0202, 0x06 }, > + { 0x0203, 0x2E }, > + { 0x0204, 0x00 }, > + { 0x0205, 0x00 }, > + { 0x020E, 0x01 }, > + { 0x020F, 0x00 }, > + { 0x0210, 0x01 }, > + { 0x0211, 0x00 }, > + { 0x0212, 0x01 }, > + { 0x0213, 0x00 }, > + { 0x0214, 0x01 }, > + { 0x0215, 0x00 }, > + { 0x7BCD, 0x01 }, > + { 0x94DC, 0x20 }, > + { 0x94DD, 0x20 }, > + { 0x94DE, 0x20 }, > + { 0x95DC, 0x20 }, > + { 0x95DD, 0x20 }, > + { 0x95DE, 0x20 }, > + { 0x7FB0, 0x00 }, > + { 0x9010, 0x3E }, > + { 0x9419, 0x50 }, > + { 0x941B, 0x50 }, > + { 0x9519, 0x50 }, > + { 0x951B, 0x50 }, > + { 0x3030, 0x00 }, > + { 0x3032, 0x00 }, > + { 0x0220, 0x00 }, > +}; > + > +static const struct imx258_reg mode_1048_780_regs[] = { > + { 0x0136, 0x13 }, > + { 0x0137, 0x33 }, > + { 0x3051, 0x00 }, > + { 0x3052, 0x00 }, > + { 0x4E21, 0x14 }, > + { 0x6B11, 0xCF }, > + { 0x7FF0, 0x08 }, > + { 0x7FF1, 0x0F }, > + { 0x7FF2, 0x08 }, > + { 0x7FF3, 0x1B }, > + { 0x7FF4, 0x23 }, > + { 0x7FF5, 0x60 }, > + { 0x7FF6, 0x00 }, > + { 0x7FF7, 0x01 }, > + { 0x7FF8, 0x00 }, > + { 0x7FF9, 0x78 }, > + { 0x7FFA, 0x00 }, > + { 0x7FFB, 0x00 }, > + { 0x7FFC, 0x00 }, > + { 0x7FFD, 0x00 }, > + { 0x7FFE, 0x00 }, > + { 0x7FFF, 0x03 }, > + { 0x7F76, 0x03 }, > + { 0x7F77, 0xFE }, > + { 0x7FA8, 0x03 }, > + { 0x7FA9, 0xFE }, > + { 0x7B24, 0x81 }, > + { 0x7B25, 0x00 }, > + { 0x6564, 0x07 }, > + { 0x6B0D, 0x41 }, > + { 0x653D, 0x04 }, > + { 0x6B05, 0x8C }, > + { 0x6B06, 0xF9 }, > + { 0x6B08, 0x65 }, > + { 0x6B09, 0xFC }, > + { 0x6B0A, 0xCF }, > + { 0x6B0B, 0xD2 }, > + { 0x6700, 0x0E }, > + { 0x6707, 0x0E }, > + { 0x9104, 0x00 }, > + { 0x4648, 0x7F }, > + { 0x7420, 0x00 }, > + { 0x7421, 0x1C }, > + { 0x7422, 0x00 }, > + { 0x7423, 0xD7 }, > + { 0x5F04, 0x00 }, > + { 0x5F05, 0xED }, > + { 0x0112, 0x0A }, > + { 0x0113, 0x0A }, > + { 0x0114, 0x03 }, > + { 0x0342, 0x14 }, > + { 0x0343, 0xE8 }, > + { 0x0340, 0x03 }, > + { 0x0341, 0x4C }, > + { 0x0344, 0x00 }, > + { 0x0345, 0x00 }, > + { 0x0346, 0x00 }, > + { 0x0347, 0x00 }, > + { 0x0348, 0x10 }, > + { 0x0349, 0x6F }, > + { 0x034A, 0x0C }, > + { 0x034B, 0x2E }, > + { 0x0381, 0x01 }, > + { 0x0383, 0x01 }, > + { 0x0385, 0x01 }, > + { 0x0387, 0x01 }, > + { 0x0900, 0x01 }, > + { 0x0901, 0x14 }, > + { 0x0401, 0x01 }, > + { 0x0404, 0x00 }, > + { 0x0405, 0x40 }, > + { 0x0408, 0x00 }, > + { 0x0409, 0x06 }, > + { 0x040A, 0x00 }, > + { 0x040B, 0x00 }, > + { 0x040C, 0x10 }, > + { 0x040D, 0x64 }, > + { 0x040E, 0x03 }, > + { 0x040F, 0x0C }, > + { 0x3038, 0x00 }, > + { 0x303A, 0x00 }, > + { 0x303B, 0x10 }, > + { 0x300D, 0x00 }, > + { 0x034C, 0x04 }, > + { 0x034D, 0x18 }, > + { 0x034E, 0x03 }, > + { 0x034F, 0x0C }, > + { 0x0350, 0x01 }, > + { 0x0202, 0x03 }, > + { 0x0203, 0x42 }, > + { 0x0204, 0x00 }, > + { 0x0205, 0x00 }, > + { 0x020E, 0x01 }, > + { 0x020F, 0x00 }, > + { 0x0210, 0x01 }, > + { 0x0211, 0x00 }, > + { 0x0212, 0x01 }, > + { 0x0213, 0x00 }, > + { 0x0214, 0x01 }, > + { 0x0215, 0x00 }, > + { 0x7BCD, 0x00 }, > + { 0x94DC, 0x20 }, > + { 0x94DD, 0x20 }, > + { 0x94DE, 0x20 }, > + { 0x95DC, 0x20 }, > + { 0x95DD, 0x20 }, > + { 0x95DE, 0x20 }, > + { 0x7FB0, 0x00 }, > + { 0x9010, 0x3E }, > + { 0x9419, 0x50 }, > + { 0x941B, 0x50 }, > + { 0x9519, 0x50 }, > + { 0x951B, 0x50 }, > + { 0x3030, 0x00 }, > + { 0x3032, 0x00 }, > + { 0x0220, 0x00 }, > +}; > + > +static const char * const imx258_test_pattern_menu[] = { > + "Disabled", > + "Color Bars", > + "Solid Color", > + "Grey Color Bars", > + "PN9" > +}; > + > +static const int imx258_test_pattern_val[] = { > + IMX258_TEST_PATTERN_DISABLE, > + IMX258_TEST_PATTERN_COLOR_BARS, > + IMX258_TEST_PATTERN_SOLID_COLOR, > + IMX258_TEST_PATTERN_GREY_COLOR, > + IMX258_TEST_PATTERN_PN9, > +}; > + > +/* Configurations for supported link frequencies */ > +#define IMX258_LINK_FREQ_634MHZ 633600000ULL > +#define IMX258_LINK_FREQ_320MHZ 320000000ULL > + > +enum { > + IMX258_LINK_FREQ_1267MBPS, > + IMX258_LINK_FREQ_640MBPS, > +}; > + > +/* > + * pixel_rate = link_freq * data-rate * nr_of_lanes / bits_per_sample > + * data rate => double data rate; number of lanes => 4; bits per pixel => 10 > + */ > +static u64 link_freq_to_pixel_rate(u64 f) > +{ > + f *= 2 * 4; > + do_div(f, 10); > + > + return f; > +} > + > +/* Menu items for LINK_FREQ V4L2 control */ > +static const s64 link_freq_menu_items[] = { > + IMX258_LINK_FREQ_634MHZ, > + IMX258_LINK_FREQ_320MHZ, > +}; > + > +/* Link frequency configs */ > +static const struct imx258_link_freq_config link_freq_configs[] = { > + [IMX258_LINK_FREQ_1267MBPS] = { > + .pixels_per_line = IMX258_PPL_DEFAULT, > + .reg_list = { > + .num_of_regs = ARRAY_SIZE(mipi_data_rate_1267mbps), > + .regs = mipi_data_rate_1267mbps, > + } > + }, > + [IMX258_LINK_FREQ_640MBPS] = { > + .pixels_per_line = IMX258_PPL_DEFAULT, > + .reg_list = { > + .num_of_regs = ARRAY_SIZE(mipi_data_rate_640mbps), > + .regs = mipi_data_rate_640mbps, > + } > + }, > +}; > + > +/* Mode configs */ > +static const struct imx258_mode supported_modes[] = { > + { > + .width = 4208, > + .height = 3118, > + .vts_def = IMX258_VTS_30FPS, > + .vts_min = IMX258_VTS_30FPS, > + .reg_list = { > + .num_of_regs = ARRAY_SIZE(mode_4208x3118_regs), > + .regs = mode_4208x3118_regs, > + }, > + .link_freq_index = IMX258_LINK_FREQ_1267MBPS, > + }, > + { > + .width = 2104, > + .height = 1560, > + .vts_def = IMX258_VTS_30FPS_2K, > + .vts_min = IMX258_VTS_30FPS_2K, > + .reg_list = { > + .num_of_regs = ARRAY_SIZE(mode_2104_1560_regs), > + .regs = mode_2104_1560_regs, > + }, > + .link_freq_index = IMX258_LINK_FREQ_640MBPS, > + }, > + { > + .width = 1048, > + .height = 780, > + .vts_def = IMX258_VTS_30FPS_VGA, > + .vts_min = IMX258_VTS_30FPS_VGA, > + .reg_list = { > + .num_of_regs = ARRAY_SIZE(mode_1048_780_regs), > + .regs = mode_1048_780_regs, > + }, > + .link_freq_index = IMX258_LINK_FREQ_640MBPS, > + }, > +}; > + > +struct imx258 { > + struct v4l2_subdev sd; > + struct media_pad pad; > + > + struct v4l2_ctrl_handler ctrl_handler; > + /* V4L2 Controls */ > + struct v4l2_ctrl *link_freq; > + struct v4l2_ctrl *pixel_rate; > + struct v4l2_ctrl *vblank; > + struct v4l2_ctrl *hblank; > + struct v4l2_ctrl *exposure; > + > + /* Current mode */ > + const struct imx258_mode *cur_mode; > + > + /* > + * Mutex for serialized access: > + * Protect sensor module set pad format and start/stop streaming safely. > + */ > + struct mutex mutex; > + > + /* Streaming on/off */ > + bool streaming; > +}; > + > +static inline struct imx258 *to_imx258(struct v4l2_subdev *_sd) > +{ > + return container_of(_sd, struct imx258, sd); > +} > + > +/* Read registers up to 2 at a time */ > +static int imx258_read_reg(struct imx258 *imx258, u16 reg, u32 len, u32 *val) > +{ > + struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd); > + struct i2c_msg msgs[2]; > + u8 addr_buf[2] = { reg >> 8, reg & 0xff }; > + u8 data_buf[4] = { 0, }; > + int ret; > + > + if (len > 4) > + return -EINVAL; > + > + /* Write register address */ > + msgs[0].addr = client->addr; > + msgs[0].flags = 0; > + msgs[0].len = ARRAY_SIZE(addr_buf); > + msgs[0].buf = addr_buf; > + > + /* Read data from register */ > + msgs[1].addr = client->addr; > + msgs[1].flags = I2C_M_RD; > + msgs[1].len = len; > + msgs[1].buf = &data_buf[4 - len]; > + > + ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs)); > + if (ret != ARRAY_SIZE(msgs)) > + return -EIO; > + > + *val = get_unaligned_be32(data_buf); > + > + return 0; > +} > + > +/* Write registers up to 2 at a time */ > +static int imx258_write_reg(struct imx258 *imx258, u16 reg, u32 len, u32 val) > +{ > + struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd); > + u8 buf[6]; > + > + if (len > 4) > + return -EINVAL; > + > + put_unaligned_be16(reg, buf); > + put_unaligned_be32(val << (8 * (4 - len)), buf + 2); > + if (i2c_master_send(client, buf, len + 2) != len + 2) > + return -EIO; > + > + return 0; > +} > + > +/* Write a list of registers */ > +static int imx258_write_regs(struct imx258 *imx258, > + const struct imx258_reg *regs, u32 len) > +{ > + struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd); > + unsigned int i; > + int ret; > + > + for (i = 0; i < len; i++) { > + ret = imx258_write_reg(imx258, regs[i].address, 1, > + regs[i].val); > + if (ret) { > + dev_err_ratelimited( > + &client->dev, > + "Failed to write reg 0x%4.4x. error = %d\n", > + regs[i].address, ret); > + > + return ret; > + } > + } > + > + return 0; > +} > + > +/* Open sub-device */ > +static int imx258_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) > +{ > + struct v4l2_mbus_framefmt *try_fmt = > + v4l2_subdev_get_try_format(sd, fh->pad, 0); > + > + /* Initialize try_fmt */ > + try_fmt->width = supported_modes[0].width; > + try_fmt->height = supported_modes[0].height; > + try_fmt->code = MEDIA_BUS_FMT_SGRBG10_1X10; > + try_fmt->field = V4L2_FIELD_NONE; > + > + return 0; > +} > + > +static int imx258_update_digital_gain(struct imx258 *imx258, u32 len, u32 val) > +{ > + int ret; > + > + ret = imx258_write_reg(imx258, IMX258_REG_GR_DIGITAL_GAIN, > + IMX258_REG_VALUE_16BIT, > + val); > + if (ret) > + return ret; > + ret = imx258_write_reg(imx258, IMX258_REG_GB_DIGITAL_GAIN, > + IMX258_REG_VALUE_16BIT, > + val); > + if (ret) > + return ret; > + ret = imx258_write_reg(imx258, IMX258_REG_R_DIGITAL_GAIN, > + IMX258_REG_VALUE_16BIT, > + val); > + if (ret) > + return ret; > + ret = imx258_write_reg(imx258, IMX258_REG_B_DIGITAL_GAIN, > + IMX258_REG_VALUE_16BIT, > + val); > + if (ret) > + return ret; > + return 0; > +} > + > +static int imx258_set_ctrl(struct v4l2_ctrl *ctrl) > +{ > + struct imx258 *imx258 = > + container_of(ctrl->handler, struct imx258, ctrl_handler); > + struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd); > + int ret = 0; > + > + /* > + * Applying V4L2 control value only happens > + * when power is up for streaming > + */ > + if (pm_runtime_get_if_in_use(&client->dev) == 0) > + return 0; > + > + switch (ctrl->id) { > + case V4L2_CID_ANALOGUE_GAIN: > + ret = imx258_write_reg(imx258, IMX258_REG_ANALOG_GAIN, > + IMX258_REG_VALUE_16BIT, > + ctrl->val); > + break; > + case V4L2_CID_EXPOSURE: > + ret = imx258_write_reg(imx258, IMX258_REG_EXPOSURE, > + IMX258_REG_VALUE_16BIT, > + ctrl->val); > + break; > + case V4L2_CID_DIGITAL_GAIN: > + ret = imx258_update_digital_gain(imx258, IMX258_REG_VALUE_16BIT, > + ctrl->val); > + break; > + case V4L2_CID_TEST_PATTERN: > + ret = imx258_write_reg(imx258, IMX258_REG_TEST_PATTERN, > + IMX258_REG_VALUE_16BIT, > + imx258_test_pattern_val[ctrl->val]); > + > + ret = imx258_write_reg(imx258, REG_MIRROR_FLIP_CONTROL, > + IMX258_REG_VALUE_08BIT, > + ctrl->val == imx258_test_pattern_val > + [IMX258_TEST_PATTERN_DISABLE] ? > + REG_CONFIG_MIRROR_FLIP : > + REG_CONFIG_FLIP_TEST_PATTERN); > + break; > + default: > + dev_info(&client->dev, > + "ctrl(id:0x%x,val:0x%x) is not handled\n", > + ctrl->id, ctrl->val); > + ret = -EINVAL; > + break; > + } > + > + pm_runtime_put(&client->dev); > + > + return ret; > +} > + > +static const struct v4l2_ctrl_ops imx258_ctrl_ops = { > + .s_ctrl = imx258_set_ctrl, > +}; > + > +static int imx258_enum_mbus_code(struct v4l2_subdev *sd, > + struct v4l2_subdev_pad_config *cfg, > + struct v4l2_subdev_mbus_code_enum *code) > +{ > + /* Only one bayer order(GRBG) is supported */ > + if (code->index > 0) > + return -EINVAL; > + > + code->code = MEDIA_BUS_FMT_SGRBG10_1X10; > + > + return 0; > +} > + > +static int imx258_enum_frame_size(struct v4l2_subdev *sd, > + struct v4l2_subdev_pad_config *cfg, > + struct v4l2_subdev_frame_size_enum *fse) > +{ > + if (fse->index >= ARRAY_SIZE(supported_modes)) > + return -EINVAL; > + > + if (fse->code != MEDIA_BUS_FMT_SGRBG10_1X10) > + return -EINVAL; > + > + fse->min_width = supported_modes[fse->index].width; > + fse->max_width = fse->min_width; > + fse->min_height = supported_modes[fse->index].height; > + fse->max_height = fse->min_height; > + > + return 0; > +} > + > +static void imx258_update_pad_format(const struct imx258_mode *mode, > + struct v4l2_subdev_format *fmt) > +{ > + fmt->format.width = mode->width; > + fmt->format.height = mode->height; > + fmt->format.code = MEDIA_BUS_FMT_SGRBG10_1X10; > + fmt->format.field = V4L2_FIELD_NONE; > +} > + > +static int __imx258_get_pad_format(struct imx258 *imx258, > + struct v4l2_subdev_pad_config *cfg, > + struct v4l2_subdev_format *fmt) > +{ > + if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) > + fmt->format = *v4l2_subdev_get_try_format(&imx258->sd, cfg, > + fmt->pad); > + else > + imx258_update_pad_format(imx258->cur_mode, fmt); > + > + return 0; > +} > + > +static int imx258_get_pad_format(struct v4l2_subdev *sd, > + struct v4l2_subdev_pad_config *cfg, > + struct v4l2_subdev_format *fmt) > +{ > + struct imx258 *imx258 = to_imx258(sd); > + int ret; > + > + mutex_lock(&imx258->mutex); > + ret = __imx258_get_pad_format(imx258, cfg, fmt); > + mutex_unlock(&imx258->mutex); > + > + return ret; > +} > + > +static int imx258_set_pad_format(struct v4l2_subdev *sd, > + struct v4l2_subdev_pad_config *cfg, > + struct v4l2_subdev_format *fmt) > +{ > + struct imx258 *imx258 = to_imx258(sd); > + const struct imx258_mode *mode; > + struct v4l2_mbus_framefmt *framefmt; > + s32 vblank_def; > + s32 vblank_min; > + s64 h_blank; > + s64 pixel_rate; > + s64 link_freq; > + > + mutex_lock(&imx258->mutex); > + > + /* Only one raw bayer(GBRG) order is supported */ > + fmt->format.code = MEDIA_BUS_FMT_SGRBG10_1X10; > + > + mode = v4l2_find_nearest_size(supported_modes, > + ARRAY_SIZE(supported_modes), width, height, > + fmt->format.width, fmt->format.height); > + imx258_update_pad_format(mode, fmt); > + if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { > + framefmt = v4l2_subdev_get_try_format(sd, cfg, fmt->pad); > + *framefmt = fmt->format; > + } else { > + imx258->cur_mode = mode; > + __v4l2_ctrl_s_ctrl(imx258->link_freq, mode->link_freq_index); > + > + link_freq = link_freq_menu_items[mode->link_freq_index]; > + pixel_rate = link_freq_to_pixel_rate(link_freq); > + __v4l2_ctrl_s_ctrl_int64(imx258->pixel_rate, pixel_rate); > + /* Update limits and set FPS to default */ > + vblank_def = imx258->cur_mode->vts_def - > + imx258->cur_mode->height; > + vblank_min = imx258->cur_mode->vts_min - > + imx258->cur_mode->height; > + __v4l2_ctrl_modify_range( > + imx258->vblank, vblank_min, > + IMX258_VTS_MAX - imx258->cur_mode->height, 1, > + vblank_def); > + __v4l2_ctrl_s_ctrl(imx258->vblank, vblank_def); > + h_blank = > + link_freq_configs[mode->link_freq_index].pixels_per_line > + - imx258->cur_mode->width; > + __v4l2_ctrl_modify_range(imx258->hblank, h_blank, > + h_blank, 1, h_blank); > + } > + > + mutex_unlock(&imx258->mutex); > + > + return 0; > +} > + > +/* Start streaming */ > +static int imx258_start_streaming(struct imx258 *imx258) > +{ > + struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd); > + const struct imx258_reg_list *reg_list; > + int ret, link_freq_index; > + > + /* Setup PLL */ > + link_freq_index = imx258->cur_mode->link_freq_index; > + reg_list = &link_freq_configs[link_freq_index].reg_list; > + ret = imx258_write_regs(imx258, reg_list->regs, reg_list->num_of_regs); > + if (ret) { > + dev_err(&client->dev, "%s failed to set plls\n", __func__); > + return ret; > + } > + > + /* Apply default values of current mode */ > + reg_list = &imx258->cur_mode->reg_list; > + ret = imx258_write_regs(imx258, reg_list->regs, reg_list->num_of_regs); > + if (ret) { > + dev_err(&client->dev, "%s failed to set mode\n", __func__); > + return ret; > + } > + > + /* Set Orientation be 180 degree */ > + ret = imx258_write_reg(imx258, REG_MIRROR_FLIP_CONTROL, > + IMX258_REG_VALUE_08BIT, REG_CONFIG_MIRROR_FLIP); > + if (ret) { > + dev_err(&client->dev, "%s failed to set orientation\n", > + __func__); > + return ret; > + } > + > + /* Apply customized values from user */ > + ret = __v4l2_ctrl_handler_setup(imx258->sd.ctrl_handler); > + if (ret) > + return ret; > + > + /* set stream on register */ > + return imx258_write_reg(imx258, IMX258_REG_MODE_SELECT, > + IMX258_REG_VALUE_08BIT, > + IMX258_MODE_STREAMING); > +} > + > +/* Stop streaming */ > +static int imx258_stop_streaming(struct imx258 *imx258) > +{ > + struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd); > + int ret; > + > + /* set stream off register */ > + ret = imx258_write_reg(imx258, IMX258_REG_MODE_SELECT, > + IMX258_REG_VALUE_08BIT, IMX258_MODE_STANDBY); > + if (ret) > + dev_err(&client->dev, "%s failed to set stream\n", __func__); > + > + /* > + * Return success even if it was an error, as there is nothing the > + * caller can do about it. > + */ > + return 0; > +} > + > +static int imx258_set_stream(struct v4l2_subdev *sd, int enable) > +{ > + struct imx258 *imx258 = to_imx258(sd); > + struct i2c_client *client = v4l2_get_subdevdata(sd); > + int ret = 0; > + > + mutex_lock(&imx258->mutex); > + if (imx258->streaming == enable) { > + mutex_unlock(&imx258->mutex); > + return 0; > + } > + > + if (enable) { > + ret = pm_runtime_get_sync(&client->dev); > + if (ret < 0) { > + pm_runtime_put_noidle(&client->dev); > + goto err_unlock; > + } > + > + /* > + * Apply default & customized values > + * and then start streaming. > + */ > + ret = imx258_start_streaming(imx258); > + if (ret) > + goto err_rpm_put; > + } else { > + imx258_stop_streaming(imx258); > + pm_runtime_put(&client->dev); > + } > + > + imx258->streaming = enable; > + mutex_unlock(&imx258->mutex); > + > + return ret; > + > +err_rpm_put: > + pm_runtime_put(&client->dev); > +err_unlock: > + mutex_unlock(&imx258->mutex); > + > + return ret; > +} > + > +static int __maybe_unused imx258_suspend(struct device *dev) > +{ > + struct i2c_client *client = to_i2c_client(dev); > + struct v4l2_subdev *sd = i2c_get_clientdata(client); > + struct imx258 *imx258 = to_imx258(sd); > + > + if (imx258->streaming) > + imx258_stop_streaming(imx258); > + > + return 0; > +} > + > +static int __maybe_unused imx258_resume(struct device *dev) > +{ > + struct i2c_client *client = to_i2c_client(dev); > + struct v4l2_subdev *sd = i2c_get_clientdata(client); > + struct imx258 *imx258 = to_imx258(sd); > + int ret; > + > + if (imx258->streaming) { > + ret = imx258_start_streaming(imx258); > + if (ret) > + goto error; > + } > + > + return 0; > + > +error: > + imx258_stop_streaming(imx258); > + imx258->streaming = 0; > + return ret; > +} > + > +/* Verify chip ID */ > +static int imx258_identify_module(struct imx258 *imx258) > +{ > + struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd); > + int ret; > + u32 val; > + > + ret = imx258_read_reg(imx258, IMX258_REG_CHIP_ID, > + IMX258_REG_VALUE_16BIT, &val); > + if (ret) { > + dev_err(&client->dev, "failed to read chip id %x\n", > + IMX258_CHIP_ID); > + return ret; > + } > + > + if (val != IMX258_CHIP_ID) { > + dev_err(&client->dev, "chip id mismatch: %x!=%x\n", > + IMX258_CHIP_ID, val); > + return -EIO; > + } > + > + return 0; > +} > + > +static const struct v4l2_subdev_video_ops imx258_video_ops = { > + .s_stream = imx258_set_stream, > +}; > + > +static const struct v4l2_subdev_pad_ops imx258_pad_ops = { > + .enum_mbus_code = imx258_enum_mbus_code, > + .get_fmt = imx258_get_pad_format, > + .set_fmt = imx258_set_pad_format, > + .enum_frame_size = imx258_enum_frame_size, > +}; > + > +static const struct v4l2_subdev_ops imx258_subdev_ops = { > + .video = &imx258_video_ops, > + .pad = &imx258_pad_ops, > +}; > + > +static const struct v4l2_subdev_internal_ops imx258_internal_ops = { > + .open = imx258_open, > +}; > + > +/* Initialize control handlers */ > +static int imx258_init_controls(struct imx258 *imx258) > +{ > + struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd); > + struct v4l2_ctrl_handler *ctrl_hdlr; > + s64 exposure_max; > + s64 vblank_def; > + s64 vblank_min; > + s64 pixel_rate_min; > + s64 pixel_rate_max; > + int ret; > + > + ctrl_hdlr = &imx258->ctrl_handler; > + ret = v4l2_ctrl_handler_init(ctrl_hdlr, 8); > + if (ret) > + return ret; > + > + mutex_init(&imx258->mutex); > + ctrl_hdlr->lock = &imx258->mutex; > + imx258->link_freq = v4l2_ctrl_new_int_menu(ctrl_hdlr, > + &imx258_ctrl_ops, > + V4L2_CID_LINK_FREQ, > + ARRAY_SIZE(link_freq_menu_items) - 1, > + 0, > + link_freq_menu_items); > + > + if (imx258->link_freq) > + imx258->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY; > + > + pixel_rate_max = link_freq_to_pixel_rate(link_freq_menu_items[0]); > + pixel_rate_min = link_freq_to_pixel_rate(link_freq_menu_items[1]); > + /* By default, PIXEL_RATE is read only */ > + imx258->pixel_rate = v4l2_ctrl_new_std(ctrl_hdlr, &imx258_ctrl_ops, > + V4L2_CID_PIXEL_RATE, > + pixel_rate_min, pixel_rate_max, > + 1, pixel_rate_max); > + > + > + vblank_def = imx258->cur_mode->vts_def - imx258->cur_mode->height; > + vblank_min = imx258->cur_mode->vts_min - imx258->cur_mode->height; > + imx258->vblank = v4l2_ctrl_new_std( > + ctrl_hdlr, &imx258_ctrl_ops, V4L2_CID_VBLANK, > + vblank_min, > + IMX258_VTS_MAX - imx258->cur_mode->height, 1, > + vblank_def); > + > + if (imx258->vblank) > + imx258->vblank->flags |= V4L2_CTRL_FLAG_READ_ONLY; > + > + imx258->hblank = v4l2_ctrl_new_std( > + ctrl_hdlr, &imx258_ctrl_ops, V4L2_CID_HBLANK, > + IMX258_PPL_DEFAULT - imx258->cur_mode->width, > + IMX258_PPL_DEFAULT - imx258->cur_mode->width, > + 1, > + IMX258_PPL_DEFAULT - imx258->cur_mode->width); > + > + if (imx258->hblank) > + imx258->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY; > + > + exposure_max = imx258->cur_mode->vts_def - 8; > + imx258->exposure = v4l2_ctrl_new_std( > + ctrl_hdlr, &imx258_ctrl_ops, > + V4L2_CID_EXPOSURE, IMX258_EXPOSURE_MIN, > + IMX258_EXPOSURE_MAX, IMX258_EXPOSURE_STEP, > + IMX258_EXPOSURE_DEFAULT); > + > + v4l2_ctrl_new_std(ctrl_hdlr, &imx258_ctrl_ops, V4L2_CID_ANALOGUE_GAIN, > + IMX258_ANA_GAIN_MIN, IMX258_ANA_GAIN_MAX, > + IMX258_ANA_GAIN_STEP, IMX258_ANA_GAIN_DEFAULT); > + > + v4l2_ctrl_new_std(ctrl_hdlr, &imx258_ctrl_ops, V4L2_CID_DIGITAL_GAIN, > + IMX258_DGTL_GAIN_MIN, IMX258_DGTL_GAIN_MAX, > + IMX258_DGTL_GAIN_STEP, > + IMX258_DGTL_GAIN_DEFAULT); > + > + v4l2_ctrl_new_std_menu_items(ctrl_hdlr, &imx258_ctrl_ops, > + V4L2_CID_TEST_PATTERN, > + ARRAY_SIZE(imx258_test_pattern_menu) - 1, > + 0, 0, imx258_test_pattern_menu); > + > + if (ctrl_hdlr->error) { > + ret = ctrl_hdlr->error; > + dev_err(&client->dev, "%s control init failed (%d)\n", > + __func__, ret); > + goto error; > + } > + > + imx258->sd.ctrl_handler = ctrl_hdlr; > + > + return 0; > + > +error: > + v4l2_ctrl_handler_free(ctrl_hdlr); > + mutex_destroy(&imx258->mutex); > + > + return ret; > +} > + > +static void imx258_free_controls(struct imx258 *imx258) > +{ > + v4l2_ctrl_handler_free(imx258->sd.ctrl_handler); > + mutex_destroy(&imx258->mutex); > +} > + > +static int imx258_probe(struct i2c_client *client) > +{ > + struct imx258 *imx258; > + int ret; > + u32 val = 0; > + > + device_property_read_u32(&client->dev, "clock-frequency", &val); > + if (val != 19200000) > + return -EINVAL; > + > + imx258 = devm_kzalloc(&client->dev, sizeof(*imx258), GFP_KERNEL); > + if (!imx258) > + return -ENOMEM; > + > + /* Initialize subdev */ > + v4l2_i2c_subdev_init(&imx258->sd, client, &imx258_subdev_ops); > + > + /* Check module identity */ > + ret = imx258_identify_module(imx258); > + if (ret) > + return ret; > + > + /* Set default mode to max resolution */ > + imx258->cur_mode = &supported_modes[0]; > + > + ret = imx258_init_controls(imx258); > + if (ret) > + return ret; > + > + /* Initialize subdev */ > + imx258->sd.internal_ops = &imx258_internal_ops; > + imx258->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; > + imx258->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR; > + > + /* Initialize source pad */ > + imx258->pad.flags = MEDIA_PAD_FL_SOURCE; > + > + ret = media_entity_pads_init(&imx258->sd.entity, 1, &imx258->pad); > + if (ret) > + goto error_handler_free; > + > + ret = v4l2_async_register_subdev_sensor_common(&imx258->sd); > + if (ret < 0) > + goto error_media_entity; > + > + pm_runtime_set_active(&client->dev); > + pm_runtime_enable(&client->dev); > + pm_runtime_idle(&client->dev); > + > + return 0; > + > +error_media_entity: > + media_entity_cleanup(&imx258->sd.entity); > + > +error_handler_free: > + imx258_free_controls(imx258); > + > + return ret; > +} > + > +static int imx258_remove(struct i2c_client *client) > +{ > + struct v4l2_subdev *sd = i2c_get_clientdata(client); > + struct imx258 *imx258 = to_imx258(sd); > + > + v4l2_async_unregister_subdev(sd); > + media_entity_cleanup(&sd->entity); > + imx258_free_controls(imx258); > + > + pm_runtime_disable(&client->dev); > + pm_runtime_set_suspended(&client->dev); > + > + return 0; > +} > + > +static const struct dev_pm_ops imx258_pm_ops = { > + SET_SYSTEM_SLEEP_PM_OPS(imx258_suspend, imx258_resume) > +}; > + > +#ifdef CONFIG_ACPI > +static const struct acpi_device_id imx258_acpi_ids[] = { > + { "SONY258A" }, > + { /* sentinel */ } > +}; > + > +MODULE_DEVICE_TABLE(acpi, imx258_acpi_ids); > +#endif > + > +static struct i2c_driver imx258_i2c_driver = { > + .driver = { > + .name = "imx258", > + .pm = &imx258_pm_ops, > + .acpi_match_table = ACPI_PTR(imx258_acpi_ids), > + }, > + .probe_new = imx258_probe, > + .remove = imx258_remove, > +}; > + > +module_i2c_driver(imx258_i2c_driver); > + > +MODULE_AUTHOR("Yeh, Andy <andy.yeh@intel.com>"); > +MODULE_AUTHOR("Chiang, Alan <alanx.chiang@intel.com>"); > +MODULE_AUTHOR("Chen, Jason <jasonx.z.chen@intel.com>"); > +MODULE_DESCRIPTION("Sony IMX258 sensor driver"); > +MODULE_LICENSE("GPL v2");
diff --git a/MAINTAINERS b/MAINTAINERS index 4d6f837b2337..e73a55a6a855 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -13069,6 +13069,13 @@ S: Maintained F: drivers/ssb/ F: include/linux/ssb/ +SONY IMX258 SENSOR DRIVER +M: Sakari Ailus <sakari.ailus@linux.intel.com> +L: linux-media@vger.kernel.org +T: git git://linuxtv.org/media_tree.git +S: Maintained +F: drivers/media/i2c/imx258.c + SONY IMX274 SENSOR DRIVER M: Leon Luo <leonl@leopardimaging.com> L: linux-media@vger.kernel.org diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig index e6a721c5e3b0..1f9d7c6aa31a 100644 --- a/drivers/media/i2c/Kconfig +++ b/drivers/media/i2c/Kconfig @@ -585,6 +585,17 @@ config VIDEO_APTINA_PLL config VIDEO_SMIAPP_PLL tristate +config VIDEO_IMX258 + tristate "Sony IMX258 sensor support" + depends on I2C && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API + depends on MEDIA_CAMERA_SUPPORT + ---help--- + This is a Video4Linux2 sensor-level driver for the Sony + IMX258 camera. + + To compile this driver as a module, choose M here: the + module will be called imx258. + config VIDEO_IMX274 tristate "Sony IMX274 sensor support" depends on I2C && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API diff --git a/drivers/media/i2c/Makefile b/drivers/media/i2c/Makefile index 5cf15edacb2b..16fc34eda5cc 100644 --- a/drivers/media/i2c/Makefile +++ b/drivers/media/i2c/Makefile @@ -102,6 +102,7 @@ obj-$(CONFIG_VIDEO_I2C) += video-i2c.o obj-$(CONFIG_VIDEO_ML86V7667) += ml86v7667.o obj-$(CONFIG_VIDEO_OV2659) += ov2659.o obj-$(CONFIG_VIDEO_TC358743) += tc358743.o +obj-$(CONFIG_VIDEO_IMX258) += imx258.o obj-$(CONFIG_VIDEO_IMX274) += imx274.o obj-$(CONFIG_SDR_MAX2175) += max2175.o diff --git a/drivers/media/i2c/imx258.c b/drivers/media/i2c/imx258.c new file mode 100644 index 000000000000..fad3012f4fe5 --- /dev/null +++ b/drivers/media/i2c/imx258.c @@ -0,0 +1,1320 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright (C) 2018 Intel Corporation + +#include <linux/acpi.h> +#include <linux/delay.h> +#include <linux/i2c.h> +#include <linux/module.h> +#include <linux/pm_runtime.h> +#include <media/v4l2-ctrls.h> +#include <media/v4l2-device.h> +#include <asm/unaligned.h> + +#define IMX258_REG_VALUE_08BIT 1 +#define IMX258_REG_VALUE_16BIT 2 + +#define IMX258_REG_MODE_SELECT 0x0100 +#define IMX258_MODE_STANDBY 0x00 +#define IMX258_MODE_STREAMING 0x01 + +/* Chip ID */ +#define IMX258_REG_CHIP_ID 0x0016 +#define IMX258_CHIP_ID 0x0258 + +/* V_TIMING internal */ +#define IMX258_VTS_30FPS 0x0c98 +#define IMX258_VTS_30FPS_2K 0x0638 +#define IMX258_VTS_30FPS_VGA 0x034c +#define IMX258_VTS_MAX 0xffff + +/*Frame Length Line*/ +#define IMX258_FLL_MIN 0x08a6 +#define IMX258_FLL_MAX 0xffff +#define IMX258_FLL_STEP 1 +#define IMX258_FLL_DEFAULT 0x0c98 + +/* HBLANK control - read only */ +#define IMX258_PPL_DEFAULT 5352 + +/* Exposure control */ +#define IMX258_REG_EXPOSURE 0x0202 +#define IMX258_EXPOSURE_MIN 4 +#define IMX258_EXPOSURE_STEP 1 +#define IMX258_EXPOSURE_DEFAULT 0x640 +#define IMX258_EXPOSURE_MAX 65535 + +/* Analog gain control */ +#define IMX258_REG_ANALOG_GAIN 0x0204 +#define IMX258_ANA_GAIN_MIN 0 +#define IMX258_ANA_GAIN_MAX 0x1fff +#define IMX258_ANA_GAIN_STEP 1 +#define IMX258_ANA_GAIN_DEFAULT 0x0 + +/* Digital gain control */ +#define IMX258_REG_GR_DIGITAL_GAIN 0x020e +#define IMX258_REG_R_DIGITAL_GAIN 0x0210 +#define IMX258_REG_B_DIGITAL_GAIN 0x0212 +#define IMX258_REG_GB_DIGITAL_GAIN 0x0214 +#define IMX258_DGTL_GAIN_MIN 0 +#define IMX258_DGTL_GAIN_MAX 4096 /* Max = 0xFFF */ +#define IMX258_DGTL_GAIN_DEFAULT 1024 +#define IMX258_DGTL_GAIN_STEP 1 + +/* Test Pattern Control */ +#define IMX258_REG_TEST_PATTERN 0x0600 +#define IMX258_TEST_PATTERN_DISABLE 0 +#define IMX258_TEST_PATTERN_SOLID_COLOR 1 +#define IMX258_TEST_PATTERN_COLOR_BARS 2 +#define IMX258_TEST_PATTERN_GREY_COLOR 3 +#define IMX258_TEST_PATTERN_PN9 4 + +/* Orientation */ +#define REG_MIRROR_FLIP_CONTROL 0x0101 +#define REG_CONFIG_MIRROR_FLIP 0x03 +#define REG_CONFIG_FLIP_TEST_PATTERN 0x02 + +struct imx258_reg { + u16 address; + u8 val; +}; + +struct imx258_reg_list { + u32 num_of_regs; + const struct imx258_reg *regs; +}; + +/* Link frequency config */ +struct imx258_link_freq_config { + u32 pixels_per_line; + + /* PLL registers for this link frequency */ + struct imx258_reg_list reg_list; +}; + +/* Mode : resolution and related config&values */ +struct imx258_mode { + /* Frame width */ + u32 width; + /* Frame height */ + u32 height; + + /* V-timing */ + u32 vts_def; + u32 vts_min; + + /* Index of Link frequency config to be used */ + u32 link_freq_index; + /* Default register values */ + struct imx258_reg_list reg_list; +}; + +/* 4208x3118 needs 1267Mbps/lane, 4 lanes */ +static const struct imx258_reg mipi_data_rate_1267mbps[] = { + { 0x0301, 0x05 }, + { 0x0303, 0x02 }, + { 0x0305, 0x03 }, + { 0x0306, 0x00 }, + { 0x0307, 0xC6 }, + { 0x0309, 0x0A }, + { 0x030B, 0x01 }, + { 0x030D, 0x02 }, + { 0x030E, 0x00 }, + { 0x030F, 0xD8 }, + { 0x0310, 0x00 }, + { 0x0820, 0x13 }, + { 0x0821, 0x4C }, + { 0x0822, 0xCC }, + { 0x0823, 0xCC }, +}; + +static const struct imx258_reg mipi_data_rate_640mbps[] = { + { 0x0301, 0x05 }, + { 0x0303, 0x02 }, + { 0x0305, 0x03 }, + { 0x0306, 0x00 }, + { 0x0307, 0x64 }, + { 0x0309, 0x0A }, + { 0x030B, 0x01 }, + { 0x030D, 0x02 }, + { 0x030E, 0x00 }, + { 0x030F, 0xD8 }, + { 0x0310, 0x00 }, + { 0x0820, 0x0A }, + { 0x0821, 0x00 }, + { 0x0822, 0x00 }, + { 0x0823, 0x00 }, +}; + +static const struct imx258_reg mode_4208x3118_regs[] = { + { 0x0136, 0x13 }, + { 0x0137, 0x33 }, + { 0x3051, 0x00 }, + { 0x3052, 0x00 }, + { 0x4E21, 0x14 }, + { 0x6B11, 0xCF }, + { 0x7FF0, 0x08 }, + { 0x7FF1, 0x0F }, + { 0x7FF2, 0x08 }, + { 0x7FF3, 0x1B }, + { 0x7FF4, 0x23 }, + { 0x7FF5, 0x60 }, + { 0x7FF6, 0x00 }, + { 0x7FF7, 0x01 }, + { 0x7FF8, 0x00 }, + { 0x7FF9, 0x78 }, + { 0x7FFA, 0x00 }, + { 0x7FFB, 0x00 }, + { 0x7FFC, 0x00 }, + { 0x7FFD, 0x00 }, + { 0x7FFE, 0x00 }, + { 0x7FFF, 0x03 }, + { 0x7F76, 0x03 }, + { 0x7F77, 0xFE }, + { 0x7FA8, 0x03 }, + { 0x7FA9, 0xFE }, + { 0x7B24, 0x81 }, + { 0x7B25, 0x00 }, + { 0x6564, 0x07 }, + { 0x6B0D, 0x41 }, + { 0x653D, 0x04 }, + { 0x6B05, 0x8C }, + { 0x6B06, 0xF9 }, + { 0x6B08, 0x65 }, + { 0x6B09, 0xFC }, + { 0x6B0A, 0xCF }, + { 0x6B0B, 0xD2 }, + { 0x6700, 0x0E }, + { 0x6707, 0x0E }, + { 0x9104, 0x00 }, + { 0x4648, 0x7F }, + { 0x7420, 0x00 }, + { 0x7421, 0x1C }, + { 0x7422, 0x00 }, + { 0x7423, 0xD7 }, + { 0x5F04, 0x00 }, + { 0x5F05, 0xED }, + { 0x0112, 0x0A }, + { 0x0113, 0x0A }, + { 0x0114, 0x03 }, + { 0x0342, 0x14 }, + { 0x0343, 0xE8 }, + { 0x0340, 0x0C }, + { 0x0341, 0x50 }, + { 0x0344, 0x00 }, + { 0x0345, 0x00 }, + { 0x0346, 0x00 }, + { 0x0347, 0x00 }, + { 0x0348, 0x10 }, + { 0x0349, 0x6F }, + { 0x034A, 0x0C }, + { 0x034B, 0x2E }, + { 0x0381, 0x01 }, + { 0x0383, 0x01 }, + { 0x0385, 0x01 }, + { 0x0387, 0x01 }, + { 0x0900, 0x00 }, + { 0x0901, 0x11 }, + { 0x0401, 0x00 }, + { 0x0404, 0x00 }, + { 0x0405, 0x10 }, + { 0x0408, 0x00 }, + { 0x0409, 0x00 }, + { 0x040A, 0x00 }, + { 0x040B, 0x00 }, + { 0x040C, 0x10 }, + { 0x040D, 0x70 }, + { 0x040E, 0x0C }, + { 0x040F, 0x30 }, + { 0x3038, 0x00 }, + { 0x303A, 0x00 }, + { 0x303B, 0x10 }, + { 0x300D, 0x00 }, + { 0x034C, 0x10 }, + { 0x034D, 0x70 }, + { 0x034E, 0x0C }, + { 0x034F, 0x30 }, + { 0x0350, 0x01 }, + { 0x0202, 0x0C }, + { 0x0203, 0x46 }, + { 0x0204, 0x00 }, + { 0x0205, 0x00 }, + { 0x020E, 0x01 }, + { 0x020F, 0x00 }, + { 0x0210, 0x01 }, + { 0x0211, 0x00 }, + { 0x0212, 0x01 }, + { 0x0213, 0x00 }, + { 0x0214, 0x01 }, + { 0x0215, 0x00 }, + { 0x7BCD, 0x00 }, + { 0x94DC, 0x20 }, + { 0x94DD, 0x20 }, + { 0x94DE, 0x20 }, + { 0x95DC, 0x20 }, + { 0x95DD, 0x20 }, + { 0x95DE, 0x20 }, + { 0x7FB0, 0x00 }, + { 0x9010, 0x3E }, + { 0x9419, 0x50 }, + { 0x941B, 0x50 }, + { 0x9519, 0x50 }, + { 0x951B, 0x50 }, + { 0x3030, 0x00 }, + { 0x3032, 0x00 }, + { 0x0220, 0x00 }, +}; + +static const struct imx258_reg mode_2104_1560_regs[] = { + { 0x0136, 0x13 }, + { 0x0137, 0x33 }, + { 0x3051, 0x00 }, + { 0x3052, 0x00 }, + { 0x4E21, 0x14 }, + { 0x6B11, 0xCF }, + { 0x7FF0, 0x08 }, + { 0x7FF1, 0x0F }, + { 0x7FF2, 0x08 }, + { 0x7FF3, 0x1B }, + { 0x7FF4, 0x23 }, + { 0x7FF5, 0x60 }, + { 0x7FF6, 0x00 }, + { 0x7FF7, 0x01 }, + { 0x7FF8, 0x00 }, + { 0x7FF9, 0x78 }, + { 0x7FFA, 0x00 }, + { 0x7FFB, 0x00 }, + { 0x7FFC, 0x00 }, + { 0x7FFD, 0x00 }, + { 0x7FFE, 0x00 }, + { 0x7FFF, 0x03 }, + { 0x7F76, 0x03 }, + { 0x7F77, 0xFE }, + { 0x7FA8, 0x03 }, + { 0x7FA9, 0xFE }, + { 0x7B24, 0x81 }, + { 0x7B25, 0x00 }, + { 0x6564, 0x07 }, + { 0x6B0D, 0x41 }, + { 0x653D, 0x04 }, + { 0x6B05, 0x8C }, + { 0x6B06, 0xF9 }, + { 0x6B08, 0x65 }, + { 0x6B09, 0xFC }, + { 0x6B0A, 0xCF }, + { 0x6B0B, 0xD2 }, + { 0x6700, 0x0E }, + { 0x6707, 0x0E }, + { 0x9104, 0x00 }, + { 0x4648, 0x7F }, + { 0x7420, 0x00 }, + { 0x7421, 0x1C }, + { 0x7422, 0x00 }, + { 0x7423, 0xD7 }, + { 0x5F04, 0x00 }, + { 0x5F05, 0xED }, + { 0x0112, 0x0A }, + { 0x0113, 0x0A }, + { 0x0114, 0x03 }, + { 0x0342, 0x14 }, + { 0x0343, 0xE8 }, + { 0x0340, 0x06 }, + { 0x0341, 0x38 }, + { 0x0344, 0x00 }, + { 0x0345, 0x00 }, + { 0x0346, 0x00 }, + { 0x0347, 0x00 }, + { 0x0348, 0x10 }, + { 0x0349, 0x6F }, + { 0x034A, 0x0C }, + { 0x034B, 0x2E }, + { 0x0381, 0x01 }, + { 0x0383, 0x01 }, + { 0x0385, 0x01 }, + { 0x0387, 0x01 }, + { 0x0900, 0x01 }, + { 0x0901, 0x12 }, + { 0x0401, 0x01 }, + { 0x0404, 0x00 }, + { 0x0405, 0x20 }, + { 0x0408, 0x00 }, + { 0x0409, 0x02 }, + { 0x040A, 0x00 }, + { 0x040B, 0x00 }, + { 0x040C, 0x10 }, + { 0x040D, 0x6A }, + { 0x040E, 0x06 }, + { 0x040F, 0x18 }, + { 0x3038, 0x00 }, + { 0x303A, 0x00 }, + { 0x303B, 0x10 }, + { 0x300D, 0x00 }, + { 0x034C, 0x08 }, + { 0x034D, 0x38 }, + { 0x034E, 0x06 }, + { 0x034F, 0x18 }, + { 0x0350, 0x01 }, + { 0x0202, 0x06 }, + { 0x0203, 0x2E }, + { 0x0204, 0x00 }, + { 0x0205, 0x00 }, + { 0x020E, 0x01 }, + { 0x020F, 0x00 }, + { 0x0210, 0x01 }, + { 0x0211, 0x00 }, + { 0x0212, 0x01 }, + { 0x0213, 0x00 }, + { 0x0214, 0x01 }, + { 0x0215, 0x00 }, + { 0x7BCD, 0x01 }, + { 0x94DC, 0x20 }, + { 0x94DD, 0x20 }, + { 0x94DE, 0x20 }, + { 0x95DC, 0x20 }, + { 0x95DD, 0x20 }, + { 0x95DE, 0x20 }, + { 0x7FB0, 0x00 }, + { 0x9010, 0x3E }, + { 0x9419, 0x50 }, + { 0x941B, 0x50 }, + { 0x9519, 0x50 }, + { 0x951B, 0x50 }, + { 0x3030, 0x00 }, + { 0x3032, 0x00 }, + { 0x0220, 0x00 }, +}; + +static const struct imx258_reg mode_1048_780_regs[] = { + { 0x0136, 0x13 }, + { 0x0137, 0x33 }, + { 0x3051, 0x00 }, + { 0x3052, 0x00 }, + { 0x4E21, 0x14 }, + { 0x6B11, 0xCF }, + { 0x7FF0, 0x08 }, + { 0x7FF1, 0x0F }, + { 0x7FF2, 0x08 }, + { 0x7FF3, 0x1B }, + { 0x7FF4, 0x23 }, + { 0x7FF5, 0x60 }, + { 0x7FF6, 0x00 }, + { 0x7FF7, 0x01 }, + { 0x7FF8, 0x00 }, + { 0x7FF9, 0x78 }, + { 0x7FFA, 0x00 }, + { 0x7FFB, 0x00 }, + { 0x7FFC, 0x00 }, + { 0x7FFD, 0x00 }, + { 0x7FFE, 0x00 }, + { 0x7FFF, 0x03 }, + { 0x7F76, 0x03 }, + { 0x7F77, 0xFE }, + { 0x7FA8, 0x03 }, + { 0x7FA9, 0xFE }, + { 0x7B24, 0x81 }, + { 0x7B25, 0x00 }, + { 0x6564, 0x07 }, + { 0x6B0D, 0x41 }, + { 0x653D, 0x04 }, + { 0x6B05, 0x8C }, + { 0x6B06, 0xF9 }, + { 0x6B08, 0x65 }, + { 0x6B09, 0xFC }, + { 0x6B0A, 0xCF }, + { 0x6B0B, 0xD2 }, + { 0x6700, 0x0E }, + { 0x6707, 0x0E }, + { 0x9104, 0x00 }, + { 0x4648, 0x7F }, + { 0x7420, 0x00 }, + { 0x7421, 0x1C }, + { 0x7422, 0x00 }, + { 0x7423, 0xD7 }, + { 0x5F04, 0x00 }, + { 0x5F05, 0xED }, + { 0x0112, 0x0A }, + { 0x0113, 0x0A }, + { 0x0114, 0x03 }, + { 0x0342, 0x14 }, + { 0x0343, 0xE8 }, + { 0x0340, 0x03 }, + { 0x0341, 0x4C }, + { 0x0344, 0x00 }, + { 0x0345, 0x00 }, + { 0x0346, 0x00 }, + { 0x0347, 0x00 }, + { 0x0348, 0x10 }, + { 0x0349, 0x6F }, + { 0x034A, 0x0C }, + { 0x034B, 0x2E }, + { 0x0381, 0x01 }, + { 0x0383, 0x01 }, + { 0x0385, 0x01 }, + { 0x0387, 0x01 }, + { 0x0900, 0x01 }, + { 0x0901, 0x14 }, + { 0x0401, 0x01 }, + { 0x0404, 0x00 }, + { 0x0405, 0x40 }, + { 0x0408, 0x00 }, + { 0x0409, 0x06 }, + { 0x040A, 0x00 }, + { 0x040B, 0x00 }, + { 0x040C, 0x10 }, + { 0x040D, 0x64 }, + { 0x040E, 0x03 }, + { 0x040F, 0x0C }, + { 0x3038, 0x00 }, + { 0x303A, 0x00 }, + { 0x303B, 0x10 }, + { 0x300D, 0x00 }, + { 0x034C, 0x04 }, + { 0x034D, 0x18 }, + { 0x034E, 0x03 }, + { 0x034F, 0x0C }, + { 0x0350, 0x01 }, + { 0x0202, 0x03 }, + { 0x0203, 0x42 }, + { 0x0204, 0x00 }, + { 0x0205, 0x00 }, + { 0x020E, 0x01 }, + { 0x020F, 0x00 }, + { 0x0210, 0x01 }, + { 0x0211, 0x00 }, + { 0x0212, 0x01 }, + { 0x0213, 0x00 }, + { 0x0214, 0x01 }, + { 0x0215, 0x00 }, + { 0x7BCD, 0x00 }, + { 0x94DC, 0x20 }, + { 0x94DD, 0x20 }, + { 0x94DE, 0x20 }, + { 0x95DC, 0x20 }, + { 0x95DD, 0x20 }, + { 0x95DE, 0x20 }, + { 0x7FB0, 0x00 }, + { 0x9010, 0x3E }, + { 0x9419, 0x50 }, + { 0x941B, 0x50 }, + { 0x9519, 0x50 }, + { 0x951B, 0x50 }, + { 0x3030, 0x00 }, + { 0x3032, 0x00 }, + { 0x0220, 0x00 }, +}; + +static const char * const imx258_test_pattern_menu[] = { + "Disabled", + "Color Bars", + "Solid Color", + "Grey Color Bars", + "PN9" +}; + +static const int imx258_test_pattern_val[] = { + IMX258_TEST_PATTERN_DISABLE, + IMX258_TEST_PATTERN_COLOR_BARS, + IMX258_TEST_PATTERN_SOLID_COLOR, + IMX258_TEST_PATTERN_GREY_COLOR, + IMX258_TEST_PATTERN_PN9, +}; + +/* Configurations for supported link frequencies */ +#define IMX258_LINK_FREQ_634MHZ 633600000ULL +#define IMX258_LINK_FREQ_320MHZ 320000000ULL + +enum { + IMX258_LINK_FREQ_1267MBPS, + IMX258_LINK_FREQ_640MBPS, +}; + +/* + * pixel_rate = link_freq * data-rate * nr_of_lanes / bits_per_sample + * data rate => double data rate; number of lanes => 4; bits per pixel => 10 + */ +static u64 link_freq_to_pixel_rate(u64 f) +{ + f *= 2 * 4; + do_div(f, 10); + + return f; +} + +/* Menu items for LINK_FREQ V4L2 control */ +static const s64 link_freq_menu_items[] = { + IMX258_LINK_FREQ_634MHZ, + IMX258_LINK_FREQ_320MHZ, +}; + +/* Link frequency configs */ +static const struct imx258_link_freq_config link_freq_configs[] = { + [IMX258_LINK_FREQ_1267MBPS] = { + .pixels_per_line = IMX258_PPL_DEFAULT, + .reg_list = { + .num_of_regs = ARRAY_SIZE(mipi_data_rate_1267mbps), + .regs = mipi_data_rate_1267mbps, + } + }, + [IMX258_LINK_FREQ_640MBPS] = { + .pixels_per_line = IMX258_PPL_DEFAULT, + .reg_list = { + .num_of_regs = ARRAY_SIZE(mipi_data_rate_640mbps), + .regs = mipi_data_rate_640mbps, + } + }, +}; + +/* Mode configs */ +static const struct imx258_mode supported_modes[] = { + { + .width = 4208, + .height = 3118, + .vts_def = IMX258_VTS_30FPS, + .vts_min = IMX258_VTS_30FPS, + .reg_list = { + .num_of_regs = ARRAY_SIZE(mode_4208x3118_regs), + .regs = mode_4208x3118_regs, + }, + .link_freq_index = IMX258_LINK_FREQ_1267MBPS, + }, + { + .width = 2104, + .height = 1560, + .vts_def = IMX258_VTS_30FPS_2K, + .vts_min = IMX258_VTS_30FPS_2K, + .reg_list = { + .num_of_regs = ARRAY_SIZE(mode_2104_1560_regs), + .regs = mode_2104_1560_regs, + }, + .link_freq_index = IMX258_LINK_FREQ_640MBPS, + }, + { + .width = 1048, + .height = 780, + .vts_def = IMX258_VTS_30FPS_VGA, + .vts_min = IMX258_VTS_30FPS_VGA, + .reg_list = { + .num_of_regs = ARRAY_SIZE(mode_1048_780_regs), + .regs = mode_1048_780_regs, + }, + .link_freq_index = IMX258_LINK_FREQ_640MBPS, + }, +}; + +struct imx258 { + struct v4l2_subdev sd; + struct media_pad pad; + + struct v4l2_ctrl_handler ctrl_handler; + /* V4L2 Controls */ + struct v4l2_ctrl *link_freq; + struct v4l2_ctrl *pixel_rate; + struct v4l2_ctrl *vblank; + struct v4l2_ctrl *hblank; + struct v4l2_ctrl *exposure; + + /* Current mode */ + const struct imx258_mode *cur_mode; + + /* + * Mutex for serialized access: + * Protect sensor module set pad format and start/stop streaming safely. + */ + struct mutex mutex; + + /* Streaming on/off */ + bool streaming; +}; + +static inline struct imx258 *to_imx258(struct v4l2_subdev *_sd) +{ + return container_of(_sd, struct imx258, sd); +} + +/* Read registers up to 2 at a time */ +static int imx258_read_reg(struct imx258 *imx258, u16 reg, u32 len, u32 *val) +{ + struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd); + struct i2c_msg msgs[2]; + u8 addr_buf[2] = { reg >> 8, reg & 0xff }; + u8 data_buf[4] = { 0, }; + int ret; + + if (len > 4) + return -EINVAL; + + /* Write register address */ + msgs[0].addr = client->addr; + msgs[0].flags = 0; + msgs[0].len = ARRAY_SIZE(addr_buf); + msgs[0].buf = addr_buf; + + /* Read data from register */ + msgs[1].addr = client->addr; + msgs[1].flags = I2C_M_RD; + msgs[1].len = len; + msgs[1].buf = &data_buf[4 - len]; + + ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs)); + if (ret != ARRAY_SIZE(msgs)) + return -EIO; + + *val = get_unaligned_be32(data_buf); + + return 0; +} + +/* Write registers up to 2 at a time */ +static int imx258_write_reg(struct imx258 *imx258, u16 reg, u32 len, u32 val) +{ + struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd); + u8 buf[6]; + + if (len > 4) + return -EINVAL; + + put_unaligned_be16(reg, buf); + put_unaligned_be32(val << (8 * (4 - len)), buf + 2); + if (i2c_master_send(client, buf, len + 2) != len + 2) + return -EIO; + + return 0; +} + +/* Write a list of registers */ +static int imx258_write_regs(struct imx258 *imx258, + const struct imx258_reg *regs, u32 len) +{ + struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd); + unsigned int i; + int ret; + + for (i = 0; i < len; i++) { + ret = imx258_write_reg(imx258, regs[i].address, 1, + regs[i].val); + if (ret) { + dev_err_ratelimited( + &client->dev, + "Failed to write reg 0x%4.4x. error = %d\n", + regs[i].address, ret); + + return ret; + } + } + + return 0; +} + +/* Open sub-device */ +static int imx258_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) +{ + struct v4l2_mbus_framefmt *try_fmt = + v4l2_subdev_get_try_format(sd, fh->pad, 0); + + /* Initialize try_fmt */ + try_fmt->width = supported_modes[0].width; + try_fmt->height = supported_modes[0].height; + try_fmt->code = MEDIA_BUS_FMT_SGRBG10_1X10; + try_fmt->field = V4L2_FIELD_NONE; + + return 0; +} + +static int imx258_update_digital_gain(struct imx258 *imx258, u32 len, u32 val) +{ + int ret; + + ret = imx258_write_reg(imx258, IMX258_REG_GR_DIGITAL_GAIN, + IMX258_REG_VALUE_16BIT, + val); + if (ret) + return ret; + ret = imx258_write_reg(imx258, IMX258_REG_GB_DIGITAL_GAIN, + IMX258_REG_VALUE_16BIT, + val); + if (ret) + return ret; + ret = imx258_write_reg(imx258, IMX258_REG_R_DIGITAL_GAIN, + IMX258_REG_VALUE_16BIT, + val); + if (ret) + return ret; + ret = imx258_write_reg(imx258, IMX258_REG_B_DIGITAL_GAIN, + IMX258_REG_VALUE_16BIT, + val); + if (ret) + return ret; + return 0; +} + +static int imx258_set_ctrl(struct v4l2_ctrl *ctrl) +{ + struct imx258 *imx258 = + container_of(ctrl->handler, struct imx258, ctrl_handler); + struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd); + int ret = 0; + + /* + * Applying V4L2 control value only happens + * when power is up for streaming + */ + if (pm_runtime_get_if_in_use(&client->dev) == 0) + return 0; + + switch (ctrl->id) { + case V4L2_CID_ANALOGUE_GAIN: + ret = imx258_write_reg(imx258, IMX258_REG_ANALOG_GAIN, + IMX258_REG_VALUE_16BIT, + ctrl->val); + break; + case V4L2_CID_EXPOSURE: + ret = imx258_write_reg(imx258, IMX258_REG_EXPOSURE, + IMX258_REG_VALUE_16BIT, + ctrl->val); + break; + case V4L2_CID_DIGITAL_GAIN: + ret = imx258_update_digital_gain(imx258, IMX258_REG_VALUE_16BIT, + ctrl->val); + break; + case V4L2_CID_TEST_PATTERN: + ret = imx258_write_reg(imx258, IMX258_REG_TEST_PATTERN, + IMX258_REG_VALUE_16BIT, + imx258_test_pattern_val[ctrl->val]); + + ret = imx258_write_reg(imx258, REG_MIRROR_FLIP_CONTROL, + IMX258_REG_VALUE_08BIT, + ctrl->val == imx258_test_pattern_val + [IMX258_TEST_PATTERN_DISABLE] ? + REG_CONFIG_MIRROR_FLIP : + REG_CONFIG_FLIP_TEST_PATTERN); + break; + default: + dev_info(&client->dev, + "ctrl(id:0x%x,val:0x%x) is not handled\n", + ctrl->id, ctrl->val); + ret = -EINVAL; + break; + } + + pm_runtime_put(&client->dev); + + return ret; +} + +static const struct v4l2_ctrl_ops imx258_ctrl_ops = { + .s_ctrl = imx258_set_ctrl, +}; + +static int imx258_enum_mbus_code(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_mbus_code_enum *code) +{ + /* Only one bayer order(GRBG) is supported */ + if (code->index > 0) + return -EINVAL; + + code->code = MEDIA_BUS_FMT_SGRBG10_1X10; + + return 0; +} + +static int imx258_enum_frame_size(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_frame_size_enum *fse) +{ + if (fse->index >= ARRAY_SIZE(supported_modes)) + return -EINVAL; + + if (fse->code != MEDIA_BUS_FMT_SGRBG10_1X10) + return -EINVAL; + + fse->min_width = supported_modes[fse->index].width; + fse->max_width = fse->min_width; + fse->min_height = supported_modes[fse->index].height; + fse->max_height = fse->min_height; + + return 0; +} + +static void imx258_update_pad_format(const struct imx258_mode *mode, + struct v4l2_subdev_format *fmt) +{ + fmt->format.width = mode->width; + fmt->format.height = mode->height; + fmt->format.code = MEDIA_BUS_FMT_SGRBG10_1X10; + fmt->format.field = V4L2_FIELD_NONE; +} + +static int __imx258_get_pad_format(struct imx258 *imx258, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_format *fmt) +{ + if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) + fmt->format = *v4l2_subdev_get_try_format(&imx258->sd, cfg, + fmt->pad); + else + imx258_update_pad_format(imx258->cur_mode, fmt); + + return 0; +} + +static int imx258_get_pad_format(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_format *fmt) +{ + struct imx258 *imx258 = to_imx258(sd); + int ret; + + mutex_lock(&imx258->mutex); + ret = __imx258_get_pad_format(imx258, cfg, fmt); + mutex_unlock(&imx258->mutex); + + return ret; +} + +static int imx258_set_pad_format(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_format *fmt) +{ + struct imx258 *imx258 = to_imx258(sd); + const struct imx258_mode *mode; + struct v4l2_mbus_framefmt *framefmt; + s32 vblank_def; + s32 vblank_min; + s64 h_blank; + s64 pixel_rate; + s64 link_freq; + + mutex_lock(&imx258->mutex); + + /* Only one raw bayer(GBRG) order is supported */ + fmt->format.code = MEDIA_BUS_FMT_SGRBG10_1X10; + + mode = v4l2_find_nearest_size(supported_modes, + ARRAY_SIZE(supported_modes), width, height, + fmt->format.width, fmt->format.height); + imx258_update_pad_format(mode, fmt); + if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { + framefmt = v4l2_subdev_get_try_format(sd, cfg, fmt->pad); + *framefmt = fmt->format; + } else { + imx258->cur_mode = mode; + __v4l2_ctrl_s_ctrl(imx258->link_freq, mode->link_freq_index); + + link_freq = link_freq_menu_items[mode->link_freq_index]; + pixel_rate = link_freq_to_pixel_rate(link_freq); + __v4l2_ctrl_s_ctrl_int64(imx258->pixel_rate, pixel_rate); + /* Update limits and set FPS to default */ + vblank_def = imx258->cur_mode->vts_def - + imx258->cur_mode->height; + vblank_min = imx258->cur_mode->vts_min - + imx258->cur_mode->height; + __v4l2_ctrl_modify_range( + imx258->vblank, vblank_min, + IMX258_VTS_MAX - imx258->cur_mode->height, 1, + vblank_def); + __v4l2_ctrl_s_ctrl(imx258->vblank, vblank_def); + h_blank = + link_freq_configs[mode->link_freq_index].pixels_per_line + - imx258->cur_mode->width; + __v4l2_ctrl_modify_range(imx258->hblank, h_blank, + h_blank, 1, h_blank); + } + + mutex_unlock(&imx258->mutex); + + return 0; +} + +/* Start streaming */ +static int imx258_start_streaming(struct imx258 *imx258) +{ + struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd); + const struct imx258_reg_list *reg_list; + int ret, link_freq_index; + + /* Setup PLL */ + link_freq_index = imx258->cur_mode->link_freq_index; + reg_list = &link_freq_configs[link_freq_index].reg_list; + ret = imx258_write_regs(imx258, reg_list->regs, reg_list->num_of_regs); + if (ret) { + dev_err(&client->dev, "%s failed to set plls\n", __func__); + return ret; + } + + /* Apply default values of current mode */ + reg_list = &imx258->cur_mode->reg_list; + ret = imx258_write_regs(imx258, reg_list->regs, reg_list->num_of_regs); + if (ret) { + dev_err(&client->dev, "%s failed to set mode\n", __func__); + return ret; + } + + /* Set Orientation be 180 degree */ + ret = imx258_write_reg(imx258, REG_MIRROR_FLIP_CONTROL, + IMX258_REG_VALUE_08BIT, REG_CONFIG_MIRROR_FLIP); + if (ret) { + dev_err(&client->dev, "%s failed to set orientation\n", + __func__); + return ret; + } + + /* Apply customized values from user */ + ret = __v4l2_ctrl_handler_setup(imx258->sd.ctrl_handler); + if (ret) + return ret; + + /* set stream on register */ + return imx258_write_reg(imx258, IMX258_REG_MODE_SELECT, + IMX258_REG_VALUE_08BIT, + IMX258_MODE_STREAMING); +} + +/* Stop streaming */ +static int imx258_stop_streaming(struct imx258 *imx258) +{ + struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd); + int ret; + + /* set stream off register */ + ret = imx258_write_reg(imx258, IMX258_REG_MODE_SELECT, + IMX258_REG_VALUE_08BIT, IMX258_MODE_STANDBY); + if (ret) + dev_err(&client->dev, "%s failed to set stream\n", __func__); + + /* + * Return success even if it was an error, as there is nothing the + * caller can do about it. + */ + return 0; +} + +static int imx258_set_stream(struct v4l2_subdev *sd, int enable) +{ + struct imx258 *imx258 = to_imx258(sd); + struct i2c_client *client = v4l2_get_subdevdata(sd); + int ret = 0; + + mutex_lock(&imx258->mutex); + if (imx258->streaming == enable) { + mutex_unlock(&imx258->mutex); + return 0; + } + + if (enable) { + ret = pm_runtime_get_sync(&client->dev); + if (ret < 0) { + pm_runtime_put_noidle(&client->dev); + goto err_unlock; + } + + /* + * Apply default & customized values + * and then start streaming. + */ + ret = imx258_start_streaming(imx258); + if (ret) + goto err_rpm_put; + } else { + imx258_stop_streaming(imx258); + pm_runtime_put(&client->dev); + } + + imx258->streaming = enable; + mutex_unlock(&imx258->mutex); + + return ret; + +err_rpm_put: + pm_runtime_put(&client->dev); +err_unlock: + mutex_unlock(&imx258->mutex); + + return ret; +} + +static int __maybe_unused imx258_suspend(struct device *dev) +{ + struct i2c_client *client = to_i2c_client(dev); + struct v4l2_subdev *sd = i2c_get_clientdata(client); + struct imx258 *imx258 = to_imx258(sd); + + if (imx258->streaming) + imx258_stop_streaming(imx258); + + return 0; +} + +static int __maybe_unused imx258_resume(struct device *dev) +{ + struct i2c_client *client = to_i2c_client(dev); + struct v4l2_subdev *sd = i2c_get_clientdata(client); + struct imx258 *imx258 = to_imx258(sd); + int ret; + + if (imx258->streaming) { + ret = imx258_start_streaming(imx258); + if (ret) + goto error; + } + + return 0; + +error: + imx258_stop_streaming(imx258); + imx258->streaming = 0; + return ret; +} + +/* Verify chip ID */ +static int imx258_identify_module(struct imx258 *imx258) +{ + struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd); + int ret; + u32 val; + + ret = imx258_read_reg(imx258, IMX258_REG_CHIP_ID, + IMX258_REG_VALUE_16BIT, &val); + if (ret) { + dev_err(&client->dev, "failed to read chip id %x\n", + IMX258_CHIP_ID); + return ret; + } + + if (val != IMX258_CHIP_ID) { + dev_err(&client->dev, "chip id mismatch: %x!=%x\n", + IMX258_CHIP_ID, val); + return -EIO; + } + + return 0; +} + +static const struct v4l2_subdev_video_ops imx258_video_ops = { + .s_stream = imx258_set_stream, +}; + +static const struct v4l2_subdev_pad_ops imx258_pad_ops = { + .enum_mbus_code = imx258_enum_mbus_code, + .get_fmt = imx258_get_pad_format, + .set_fmt = imx258_set_pad_format, + .enum_frame_size = imx258_enum_frame_size, +}; + +static const struct v4l2_subdev_ops imx258_subdev_ops = { + .video = &imx258_video_ops, + .pad = &imx258_pad_ops, +}; + +static const struct v4l2_subdev_internal_ops imx258_internal_ops = { + .open = imx258_open, +}; + +/* Initialize control handlers */ +static int imx258_init_controls(struct imx258 *imx258) +{ + struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd); + struct v4l2_ctrl_handler *ctrl_hdlr; + s64 exposure_max; + s64 vblank_def; + s64 vblank_min; + s64 pixel_rate_min; + s64 pixel_rate_max; + int ret; + + ctrl_hdlr = &imx258->ctrl_handler; + ret = v4l2_ctrl_handler_init(ctrl_hdlr, 8); + if (ret) + return ret; + + mutex_init(&imx258->mutex); + ctrl_hdlr->lock = &imx258->mutex; + imx258->link_freq = v4l2_ctrl_new_int_menu(ctrl_hdlr, + &imx258_ctrl_ops, + V4L2_CID_LINK_FREQ, + ARRAY_SIZE(link_freq_menu_items) - 1, + 0, + link_freq_menu_items); + + if (imx258->link_freq) + imx258->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY; + + pixel_rate_max = link_freq_to_pixel_rate(link_freq_menu_items[0]); + pixel_rate_min = link_freq_to_pixel_rate(link_freq_menu_items[1]); + /* By default, PIXEL_RATE is read only */ + imx258->pixel_rate = v4l2_ctrl_new_std(ctrl_hdlr, &imx258_ctrl_ops, + V4L2_CID_PIXEL_RATE, + pixel_rate_min, pixel_rate_max, + 1, pixel_rate_max); + + + vblank_def = imx258->cur_mode->vts_def - imx258->cur_mode->height; + vblank_min = imx258->cur_mode->vts_min - imx258->cur_mode->height; + imx258->vblank = v4l2_ctrl_new_std( + ctrl_hdlr, &imx258_ctrl_ops, V4L2_CID_VBLANK, + vblank_min, + IMX258_VTS_MAX - imx258->cur_mode->height, 1, + vblank_def); + + if (imx258->vblank) + imx258->vblank->flags |= V4L2_CTRL_FLAG_READ_ONLY; + + imx258->hblank = v4l2_ctrl_new_std( + ctrl_hdlr, &imx258_ctrl_ops, V4L2_CID_HBLANK, + IMX258_PPL_DEFAULT - imx258->cur_mode->width, + IMX258_PPL_DEFAULT - imx258->cur_mode->width, + 1, + IMX258_PPL_DEFAULT - imx258->cur_mode->width); + + if (imx258->hblank) + imx258->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY; + + exposure_max = imx258->cur_mode->vts_def - 8; + imx258->exposure = v4l2_ctrl_new_std( + ctrl_hdlr, &imx258_ctrl_ops, + V4L2_CID_EXPOSURE, IMX258_EXPOSURE_MIN, + IMX258_EXPOSURE_MAX, IMX258_EXPOSURE_STEP, + IMX258_EXPOSURE_DEFAULT); + + v4l2_ctrl_new_std(ctrl_hdlr, &imx258_ctrl_ops, V4L2_CID_ANALOGUE_GAIN, + IMX258_ANA_GAIN_MIN, IMX258_ANA_GAIN_MAX, + IMX258_ANA_GAIN_STEP, IMX258_ANA_GAIN_DEFAULT); + + v4l2_ctrl_new_std(ctrl_hdlr, &imx258_ctrl_ops, V4L2_CID_DIGITAL_GAIN, + IMX258_DGTL_GAIN_MIN, IMX258_DGTL_GAIN_MAX, + IMX258_DGTL_GAIN_STEP, + IMX258_DGTL_GAIN_DEFAULT); + + v4l2_ctrl_new_std_menu_items(ctrl_hdlr, &imx258_ctrl_ops, + V4L2_CID_TEST_PATTERN, + ARRAY_SIZE(imx258_test_pattern_menu) - 1, + 0, 0, imx258_test_pattern_menu); + + if (ctrl_hdlr->error) { + ret = ctrl_hdlr->error; + dev_err(&client->dev, "%s control init failed (%d)\n", + __func__, ret); + goto error; + } + + imx258->sd.ctrl_handler = ctrl_hdlr; + + return 0; + +error: + v4l2_ctrl_handler_free(ctrl_hdlr); + mutex_destroy(&imx258->mutex); + + return ret; +} + +static void imx258_free_controls(struct imx258 *imx258) +{ + v4l2_ctrl_handler_free(imx258->sd.ctrl_handler); + mutex_destroy(&imx258->mutex); +} + +static int imx258_probe(struct i2c_client *client) +{ + struct imx258 *imx258; + int ret; + u32 val = 0; + + device_property_read_u32(&client->dev, "clock-frequency", &val); + if (val != 19200000) + return -EINVAL; + + imx258 = devm_kzalloc(&client->dev, sizeof(*imx258), GFP_KERNEL); + if (!imx258) + return -ENOMEM; + + /* Initialize subdev */ + v4l2_i2c_subdev_init(&imx258->sd, client, &imx258_subdev_ops); + + /* Check module identity */ + ret = imx258_identify_module(imx258); + if (ret) + return ret; + + /* Set default mode to max resolution */ + imx258->cur_mode = &supported_modes[0]; + + ret = imx258_init_controls(imx258); + if (ret) + return ret; + + /* Initialize subdev */ + imx258->sd.internal_ops = &imx258_internal_ops; + imx258->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; + imx258->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR; + + /* Initialize source pad */ + imx258->pad.flags = MEDIA_PAD_FL_SOURCE; + + ret = media_entity_pads_init(&imx258->sd.entity, 1, &imx258->pad); + if (ret) + goto error_handler_free; + + ret = v4l2_async_register_subdev_sensor_common(&imx258->sd); + if (ret < 0) + goto error_media_entity; + + pm_runtime_set_active(&client->dev); + pm_runtime_enable(&client->dev); + pm_runtime_idle(&client->dev); + + return 0; + +error_media_entity: + media_entity_cleanup(&imx258->sd.entity); + +error_handler_free: + imx258_free_controls(imx258); + + return ret; +} + +static int imx258_remove(struct i2c_client *client) +{ + struct v4l2_subdev *sd = i2c_get_clientdata(client); + struct imx258 *imx258 = to_imx258(sd); + + v4l2_async_unregister_subdev(sd); + media_entity_cleanup(&sd->entity); + imx258_free_controls(imx258); + + pm_runtime_disable(&client->dev); + pm_runtime_set_suspended(&client->dev); + + return 0; +} + +static const struct dev_pm_ops imx258_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(imx258_suspend, imx258_resume) +}; + +#ifdef CONFIG_ACPI +static const struct acpi_device_id imx258_acpi_ids[] = { + { "SONY258A" }, + { /* sentinel */ } +}; + +MODULE_DEVICE_TABLE(acpi, imx258_acpi_ids); +#endif + +static struct i2c_driver imx258_i2c_driver = { + .driver = { + .name = "imx258", + .pm = &imx258_pm_ops, + .acpi_match_table = ACPI_PTR(imx258_acpi_ids), + }, + .probe_new = imx258_probe, + .remove = imx258_remove, +}; + +module_i2c_driver(imx258_i2c_driver); + +MODULE_AUTHOR("Yeh, Andy <andy.yeh@intel.com>"); +MODULE_AUTHOR("Chiang, Alan <alanx.chiang@intel.com>"); +MODULE_AUTHOR("Chen, Jason <jasonx.z.chen@intel.com>"); +MODULE_DESCRIPTION("Sony IMX258 sensor driver"); +MODULE_LICENSE("GPL v2");