1 // SPDX-License-Identifier: GPL-2.0
2 // Copyright (C) 2018 Intel Corporation
4 #include <asm/unaligned.h>
5 #include <linux/acpi.h>
7 #include <linux/module.h>
8 #include <linux/pm_runtime.h>
9 #include <media/v4l2-ctrls.h>
10 #include <media/v4l2-device.h>
11 #include <media/v4l2-event.h>
12 #include <media/v4l2-fwnode.h>
14 #define IMX319_REG_MODE_SELECT 0x0100
15 #define IMX319_MODE_STANDBY 0x00
16 #define IMX319_MODE_STREAMING 0x01
19 #define IMX319_REG_CHIP_ID 0x0016
20 #define IMX319_CHIP_ID 0x0319
22 /* V_TIMING internal */
23 #define IMX319_REG_FLL 0x0340
24 #define IMX319_FLL_MAX 0xffff
26 /* Exposure control */
27 #define IMX319_REG_EXPOSURE 0x0202
28 #define IMX319_EXPOSURE_MIN 1
29 #define IMX319_EXPOSURE_STEP 1
30 #define IMX319_EXPOSURE_DEFAULT 0x04f6
33 * the digital control register for all color control looks like:
34 * +-----------------+------------------+
36 * +-----------------+------------------+
38 * --------------------------------------
39 * it is used to calculate the digital gain times value(integral + fractional)
40 * the [15:8] bits is the fractional part and [7:0] bits is the integral
41 * calculation equation is:
42 * gain value (unit: times) = REG[15:8] + REG[7:0]/0x100
43 * Only value in 0x0100 ~ 0x0FFF range is allowed.
44 * Analog gain use 10 bits in the registers and allowed range is 0 ~ 960
46 /* Analog gain control */
47 #define IMX319_REG_ANALOG_GAIN 0x0204
48 #define IMX319_ANA_GAIN_MIN 0
49 #define IMX319_ANA_GAIN_MAX 960
50 #define IMX319_ANA_GAIN_STEP 1
51 #define IMX319_ANA_GAIN_DEFAULT 0
53 /* Digital gain control */
54 #define IMX319_REG_DPGA_USE_GLOBAL_GAIN 0x3ff9
55 #define IMX319_REG_DIG_GAIN_GLOBAL 0x020e
56 #define IMX319_DGTL_GAIN_MIN 256
57 #define IMX319_DGTL_GAIN_MAX 4095
58 #define IMX319_DGTL_GAIN_STEP 1
59 #define IMX319_DGTL_GAIN_DEFAULT 256
61 /* Test Pattern Control */
62 #define IMX319_REG_TEST_PATTERN 0x0600
63 #define IMX319_TEST_PATTERN_DISABLED 0
64 #define IMX319_TEST_PATTERN_SOLID_COLOR 1
65 #define IMX319_TEST_PATTERN_COLOR_BARS 2
66 #define IMX319_TEST_PATTERN_GRAY_COLOR_BARS 3
67 #define IMX319_TEST_PATTERN_PN9 4
70 #define IMX319_REG_ORIENTATION 0x0101
72 /* default link frequency and external clock */
73 #define IMX319_LINK_FREQ_DEFAULT 482400000LL
74 #define IMX319_EXT_CLK 19200000
75 #define IMX319_LINK_FREQ_INDEX 0
82 struct imx319_reg_list {
84 const struct imx319_reg *regs;
87 /* Mode : resolution and related config&values */
101 /* index of link frequency */
104 /* Default register values */
105 struct imx319_reg_list reg_list;
108 struct imx319_hwcfg {
109 u32 ext_clk; /* sensor external clk */
110 unsigned long link_freq_bitmap;
114 struct v4l2_subdev sd;
115 struct media_pad pad;
117 struct v4l2_ctrl_handler ctrl_handler;
119 struct v4l2_ctrl *link_freq;
120 struct v4l2_ctrl *pixel_rate;
121 struct v4l2_ctrl *vblank;
122 struct v4l2_ctrl *hblank;
123 struct v4l2_ctrl *exposure;
124 struct v4l2_ctrl *vflip;
125 struct v4l2_ctrl *hflip;
128 const struct imx319_mode *cur_mode;
130 struct imx319_hwcfg *hwcfg;
133 * Mutex for serialized access:
134 * Protect sensor set pad format and start/stop streaming safely.
135 * Protect access to sensor v4l2 controls.
139 /* True if the device has been identified */
143 static const struct imx319_reg imx319_global_regs[] = {
250 static const struct imx319_reg_list imx319_global_setting = {
251 .num_of_regs = ARRAY_SIZE(imx319_global_regs),
252 .regs = imx319_global_regs,
255 static const struct imx319_reg mode_3264x2448_regs[] = {
429 static const struct imx319_reg mode_3280x2464_regs[] = {
603 static const struct imx319_reg mode_1936x1096_regs[] = {
777 static const struct imx319_reg mode_1920x1080_regs[] = {
951 static const struct imx319_reg mode_1640x1232_regs[] = {
1125 static const struct imx319_reg mode_1640x922_regs[] = {
1299 static const struct imx319_reg mode_1296x736_regs[] = {
1473 static const struct imx319_reg mode_1280x720_regs[] = {
1647 static const char * const imx319_test_pattern_menu[] = {
1650 "Eight Vertical Colour Bars",
1651 "Colour Bars With Fade to Grey",
1652 "Pseudorandom Sequence (PN9)",
1656 * When adding more than the one below, make sure the disallowed ones will
1657 * actually be disabled in the LINK_FREQ control.
1659 static const s64 link_freq_menu_items[] = {
1660 IMX319_LINK_FREQ_DEFAULT,
1664 static const struct imx319_mode supported_modes[] = {
1671 .link_freq_index = IMX319_LINK_FREQ_INDEX,
1673 .num_of_regs = ARRAY_SIZE(mode_3280x2464_regs),
1674 .regs = mode_3280x2464_regs,
1683 .link_freq_index = IMX319_LINK_FREQ_INDEX,
1685 .num_of_regs = ARRAY_SIZE(mode_3264x2448_regs),
1686 .regs = mode_3264x2448_regs,
1695 .link_freq_index = IMX319_LINK_FREQ_INDEX,
1697 .num_of_regs = ARRAY_SIZE(mode_1936x1096_regs),
1698 .regs = mode_1936x1096_regs,
1707 .link_freq_index = IMX319_LINK_FREQ_INDEX,
1709 .num_of_regs = ARRAY_SIZE(mode_1920x1080_regs),
1710 .regs = mode_1920x1080_regs,
1719 .link_freq_index = IMX319_LINK_FREQ_INDEX,
1721 .num_of_regs = ARRAY_SIZE(mode_1640x1232_regs),
1722 .regs = mode_1640x1232_regs,
1731 .link_freq_index = IMX319_LINK_FREQ_INDEX,
1733 .num_of_regs = ARRAY_SIZE(mode_1640x922_regs),
1734 .regs = mode_1640x922_regs,
1743 .link_freq_index = IMX319_LINK_FREQ_INDEX,
1745 .num_of_regs = ARRAY_SIZE(mode_1296x736_regs),
1746 .regs = mode_1296x736_regs,
1755 .link_freq_index = IMX319_LINK_FREQ_INDEX,
1757 .num_of_regs = ARRAY_SIZE(mode_1280x720_regs),
1758 .regs = mode_1280x720_regs,
1763 static inline struct imx319 *to_imx319(struct v4l2_subdev *_sd)
1765 return container_of(_sd, struct imx319, sd);
1768 /* Get bayer order based on flip setting. */
1769 static u32 imx319_get_format_code(struct imx319 *imx319)
1772 * Only one bayer order is supported.
1773 * It depends on the flip settings.
1776 static const u32 codes[2][2] = {
1777 { MEDIA_BUS_FMT_SRGGB10_1X10, MEDIA_BUS_FMT_SGRBG10_1X10, },
1778 { MEDIA_BUS_FMT_SGBRG10_1X10, MEDIA_BUS_FMT_SBGGR10_1X10, },
1781 lockdep_assert_held(&imx319->mutex);
1782 code = codes[imx319->vflip->val][imx319->hflip->val];
1787 /* Read registers up to 4 at a time */
1788 static int imx319_read_reg(struct imx319 *imx319, u16 reg, u32 len, u32 *val)
1790 struct i2c_client *client = v4l2_get_subdevdata(&imx319->sd);
1791 struct i2c_msg msgs[2];
1793 u8 data_buf[4] = { 0 };
1799 put_unaligned_be16(reg, addr_buf);
1800 /* Write register address */
1801 msgs[0].addr = client->addr;
1803 msgs[0].len = ARRAY_SIZE(addr_buf);
1804 msgs[0].buf = addr_buf;
1806 /* Read data from register */
1807 msgs[1].addr = client->addr;
1808 msgs[1].flags = I2C_M_RD;
1810 msgs[1].buf = &data_buf[4 - len];
1812 ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
1813 if (ret != ARRAY_SIZE(msgs))
1816 *val = get_unaligned_be32(data_buf);
1821 /* Write registers up to 4 at a time */
1822 static int imx319_write_reg(struct imx319 *imx319, u16 reg, u32 len, u32 val)
1824 struct i2c_client *client = v4l2_get_subdevdata(&imx319->sd);
1830 put_unaligned_be16(reg, buf);
1831 put_unaligned_be32(val << (8 * (4 - len)), buf + 2);
1832 if (i2c_master_send(client, buf, len + 2) != len + 2)
1838 /* Write a list of registers */
1839 static int imx319_write_regs(struct imx319 *imx319,
1840 const struct imx319_reg *regs, u32 len)
1842 struct i2c_client *client = v4l2_get_subdevdata(&imx319->sd);
1846 for (i = 0; i < len; i++) {
1847 ret = imx319_write_reg(imx319, regs[i].address, 1, regs[i].val);
1849 dev_err_ratelimited(&client->dev,
1850 "write reg 0x%4.4x return err %d",
1851 regs[i].address, ret);
1859 /* Open sub-device */
1860 static int imx319_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
1862 struct imx319 *imx319 = to_imx319(sd);
1863 struct v4l2_mbus_framefmt *try_fmt =
1864 v4l2_subdev_state_get_format(fh->state, 0);
1866 mutex_lock(&imx319->mutex);
1868 /* Initialize try_fmt */
1869 try_fmt->width = imx319->cur_mode->width;
1870 try_fmt->height = imx319->cur_mode->height;
1871 try_fmt->code = imx319_get_format_code(imx319);
1872 try_fmt->field = V4L2_FIELD_NONE;
1874 mutex_unlock(&imx319->mutex);
1879 static int imx319_set_ctrl(struct v4l2_ctrl *ctrl)
1881 struct imx319 *imx319 = container_of(ctrl->handler,
1882 struct imx319, ctrl_handler);
1883 struct i2c_client *client = v4l2_get_subdevdata(&imx319->sd);
1887 /* Propagate change of current control to all related controls */
1889 case V4L2_CID_VBLANK:
1890 /* Update max exposure while meeting expected vblanking */
1891 max = imx319->cur_mode->height + ctrl->val - 18;
1892 __v4l2_ctrl_modify_range(imx319->exposure,
1893 imx319->exposure->minimum,
1894 max, imx319->exposure->step, max);
1899 * Applying V4L2 control value only happens
1900 * when power is up for streaming
1902 if (!pm_runtime_get_if_in_use(&client->dev))
1906 case V4L2_CID_ANALOGUE_GAIN:
1907 /* Analog gain = 1024/(1024 - ctrl->val) times */
1908 ret = imx319_write_reg(imx319, IMX319_REG_ANALOG_GAIN, 2,
1911 case V4L2_CID_DIGITAL_GAIN:
1912 ret = imx319_write_reg(imx319, IMX319_REG_DIG_GAIN_GLOBAL, 2,
1915 case V4L2_CID_EXPOSURE:
1916 ret = imx319_write_reg(imx319, IMX319_REG_EXPOSURE, 2,
1919 case V4L2_CID_VBLANK:
1920 /* Update FLL that meets expected vertical blanking */
1921 ret = imx319_write_reg(imx319, IMX319_REG_FLL, 2,
1922 imx319->cur_mode->height + ctrl->val);
1924 case V4L2_CID_TEST_PATTERN:
1925 ret = imx319_write_reg(imx319, IMX319_REG_TEST_PATTERN,
1928 case V4L2_CID_HFLIP:
1929 case V4L2_CID_VFLIP:
1930 ret = imx319_write_reg(imx319, IMX319_REG_ORIENTATION, 1,
1931 imx319->hflip->val |
1932 imx319->vflip->val << 1);
1936 dev_info(&client->dev, "ctrl(id:0x%x,val:0x%x) is not handled",
1937 ctrl->id, ctrl->val);
1941 pm_runtime_put(&client->dev);
1946 static const struct v4l2_ctrl_ops imx319_ctrl_ops = {
1947 .s_ctrl = imx319_set_ctrl,
1950 static int imx319_enum_mbus_code(struct v4l2_subdev *sd,
1951 struct v4l2_subdev_state *sd_state,
1952 struct v4l2_subdev_mbus_code_enum *code)
1954 struct imx319 *imx319 = to_imx319(sd);
1956 if (code->index > 0)
1959 mutex_lock(&imx319->mutex);
1960 code->code = imx319_get_format_code(imx319);
1961 mutex_unlock(&imx319->mutex);
1966 static int imx319_enum_frame_size(struct v4l2_subdev *sd,
1967 struct v4l2_subdev_state *sd_state,
1968 struct v4l2_subdev_frame_size_enum *fse)
1970 struct imx319 *imx319 = to_imx319(sd);
1972 if (fse->index >= ARRAY_SIZE(supported_modes))
1975 mutex_lock(&imx319->mutex);
1976 if (fse->code != imx319_get_format_code(imx319)) {
1977 mutex_unlock(&imx319->mutex);
1980 mutex_unlock(&imx319->mutex);
1982 fse->min_width = supported_modes[fse->index].width;
1983 fse->max_width = fse->min_width;
1984 fse->min_height = supported_modes[fse->index].height;
1985 fse->max_height = fse->min_height;
1990 static void imx319_update_pad_format(struct imx319 *imx319,
1991 const struct imx319_mode *mode,
1992 struct v4l2_subdev_format *fmt)
1994 fmt->format.width = mode->width;
1995 fmt->format.height = mode->height;
1996 fmt->format.code = imx319_get_format_code(imx319);
1997 fmt->format.field = V4L2_FIELD_NONE;
2000 static int imx319_do_get_pad_format(struct imx319 *imx319,
2001 struct v4l2_subdev_state *sd_state,
2002 struct v4l2_subdev_format *fmt)
2004 struct v4l2_mbus_framefmt *framefmt;
2006 if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
2007 framefmt = v4l2_subdev_state_get_format(sd_state, fmt->pad);
2008 fmt->format = *framefmt;
2010 imx319_update_pad_format(imx319, imx319->cur_mode, fmt);
2016 static int imx319_get_pad_format(struct v4l2_subdev *sd,
2017 struct v4l2_subdev_state *sd_state,
2018 struct v4l2_subdev_format *fmt)
2020 struct imx319 *imx319 = to_imx319(sd);
2023 mutex_lock(&imx319->mutex);
2024 ret = imx319_do_get_pad_format(imx319, sd_state, fmt);
2025 mutex_unlock(&imx319->mutex);
2031 imx319_set_pad_format(struct v4l2_subdev *sd,
2032 struct v4l2_subdev_state *sd_state,
2033 struct v4l2_subdev_format *fmt)
2035 struct imx319 *imx319 = to_imx319(sd);
2036 const struct imx319_mode *mode;
2037 struct v4l2_mbus_framefmt *framefmt;
2044 mutex_lock(&imx319->mutex);
2047 * Only one bayer order is supported.
2048 * It depends on the flip settings.
2050 fmt->format.code = imx319_get_format_code(imx319);
2052 mode = v4l2_find_nearest_size(supported_modes,
2053 ARRAY_SIZE(supported_modes),
2055 fmt->format.width, fmt->format.height);
2056 imx319_update_pad_format(imx319, mode, fmt);
2057 if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
2058 framefmt = v4l2_subdev_state_get_format(sd_state, fmt->pad);
2059 *framefmt = fmt->format;
2061 imx319->cur_mode = mode;
2062 pixel_rate = IMX319_LINK_FREQ_DEFAULT * 2 * 4;
2063 do_div(pixel_rate, 10);
2064 __v4l2_ctrl_s_ctrl_int64(imx319->pixel_rate, pixel_rate);
2065 /* Update limits and set FPS to default */
2066 height = imx319->cur_mode->height;
2067 vblank_def = imx319->cur_mode->fll_def - height;
2068 vblank_min = imx319->cur_mode->fll_min - height;
2069 height = IMX319_FLL_MAX - height;
2070 __v4l2_ctrl_modify_range(imx319->vblank, vblank_min, height, 1,
2072 __v4l2_ctrl_s_ctrl(imx319->vblank, vblank_def);
2073 h_blank = mode->llp - imx319->cur_mode->width;
2075 * Currently hblank is not changeable.
2076 * So FPS control is done only by vblank.
2078 __v4l2_ctrl_modify_range(imx319->hblank, h_blank,
2079 h_blank, 1, h_blank);
2082 mutex_unlock(&imx319->mutex);
2087 /* Verify chip ID */
2088 static int imx319_identify_module(struct imx319 *imx319)
2090 struct i2c_client *client = v4l2_get_subdevdata(&imx319->sd);
2094 if (imx319->identified)
2097 ret = imx319_read_reg(imx319, IMX319_REG_CHIP_ID, 2, &val);
2101 if (val != IMX319_CHIP_ID) {
2102 dev_err(&client->dev, "chip id mismatch: %x!=%x",
2103 IMX319_CHIP_ID, val);
2107 imx319->identified = true;
2112 /* Start streaming */
2113 static int imx319_start_streaming(struct imx319 *imx319)
2115 struct i2c_client *client = v4l2_get_subdevdata(&imx319->sd);
2116 const struct imx319_reg_list *reg_list;
2119 ret = imx319_identify_module(imx319);
2123 /* Global Setting */
2124 reg_list = &imx319_global_setting;
2125 ret = imx319_write_regs(imx319, reg_list->regs, reg_list->num_of_regs);
2127 dev_err(&client->dev, "failed to set global settings");
2131 /* Apply default values of current mode */
2132 reg_list = &imx319->cur_mode->reg_list;
2133 ret = imx319_write_regs(imx319, reg_list->regs, reg_list->num_of_regs);
2135 dev_err(&client->dev, "failed to set mode");
2139 /* set digital gain control to all color mode */
2140 ret = imx319_write_reg(imx319, IMX319_REG_DPGA_USE_GLOBAL_GAIN, 1, 1);
2144 /* Apply customized values from user */
2145 ret = __v4l2_ctrl_handler_setup(imx319->sd.ctrl_handler);
2149 return imx319_write_reg(imx319, IMX319_REG_MODE_SELECT,
2150 1, IMX319_MODE_STREAMING);
2153 /* Stop streaming */
2154 static int imx319_stop_streaming(struct imx319 *imx319)
2156 return imx319_write_reg(imx319, IMX319_REG_MODE_SELECT,
2157 1, IMX319_MODE_STANDBY);
2160 static int imx319_set_stream(struct v4l2_subdev *sd, int enable)
2162 struct imx319 *imx319 = to_imx319(sd);
2163 struct i2c_client *client = v4l2_get_subdevdata(sd);
2166 mutex_lock(&imx319->mutex);
2169 ret = pm_runtime_resume_and_get(&client->dev);
2174 * Apply default & customized values
2175 * and then start streaming.
2177 ret = imx319_start_streaming(imx319);
2181 imx319_stop_streaming(imx319);
2182 pm_runtime_put(&client->dev);
2185 /* vflip and hflip cannot change during streaming */
2186 __v4l2_ctrl_grab(imx319->vflip, enable);
2187 __v4l2_ctrl_grab(imx319->hflip, enable);
2189 mutex_unlock(&imx319->mutex);
2194 pm_runtime_put(&client->dev);
2196 mutex_unlock(&imx319->mutex);
2201 static const struct v4l2_subdev_core_ops imx319_subdev_core_ops = {
2202 .subscribe_event = v4l2_ctrl_subdev_subscribe_event,
2203 .unsubscribe_event = v4l2_event_subdev_unsubscribe,
2206 static const struct v4l2_subdev_video_ops imx319_video_ops = {
2207 .s_stream = imx319_set_stream,
2210 static const struct v4l2_subdev_pad_ops imx319_pad_ops = {
2211 .enum_mbus_code = imx319_enum_mbus_code,
2212 .get_fmt = imx319_get_pad_format,
2213 .set_fmt = imx319_set_pad_format,
2214 .enum_frame_size = imx319_enum_frame_size,
2217 static const struct v4l2_subdev_ops imx319_subdev_ops = {
2218 .core = &imx319_subdev_core_ops,
2219 .video = &imx319_video_ops,
2220 .pad = &imx319_pad_ops,
2223 static const struct media_entity_operations imx319_subdev_entity_ops = {
2224 .link_validate = v4l2_subdev_link_validate,
2227 static const struct v4l2_subdev_internal_ops imx319_internal_ops = {
2228 .open = imx319_open,
2231 /* Initialize control handlers */
2232 static int imx319_init_controls(struct imx319 *imx319)
2234 struct i2c_client *client = v4l2_get_subdevdata(&imx319->sd);
2235 struct v4l2_ctrl_handler *ctrl_hdlr;
2241 const struct imx319_mode *mode;
2245 ctrl_hdlr = &imx319->ctrl_handler;
2246 ret = v4l2_ctrl_handler_init(ctrl_hdlr, 10);
2250 ctrl_hdlr->lock = &imx319->mutex;
2251 max = ARRAY_SIZE(link_freq_menu_items) - 1;
2252 imx319->link_freq = v4l2_ctrl_new_int_menu(ctrl_hdlr, &imx319_ctrl_ops,
2253 V4L2_CID_LINK_FREQ, max, 0,
2254 link_freq_menu_items);
2255 if (imx319->link_freq)
2256 imx319->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY;
2258 /* pixel_rate = link_freq * 2 * nr_of_lanes / bits_per_sample */
2259 pixel_rate = IMX319_LINK_FREQ_DEFAULT * 2 * 4;
2260 do_div(pixel_rate, 10);
2261 /* By default, PIXEL_RATE is read only */
2262 imx319->pixel_rate = v4l2_ctrl_new_std(ctrl_hdlr, &imx319_ctrl_ops,
2263 V4L2_CID_PIXEL_RATE, pixel_rate,
2264 pixel_rate, 1, pixel_rate);
2266 /* Initial vblank/hblank/exposure parameters based on current mode */
2267 mode = imx319->cur_mode;
2268 vblank_def = mode->fll_def - mode->height;
2269 vblank_min = mode->fll_min - mode->height;
2270 imx319->vblank = v4l2_ctrl_new_std(ctrl_hdlr, &imx319_ctrl_ops,
2271 V4L2_CID_VBLANK, vblank_min,
2272 IMX319_FLL_MAX - mode->height,
2275 hblank = mode->llp - mode->width;
2276 imx319->hblank = v4l2_ctrl_new_std(ctrl_hdlr, &imx319_ctrl_ops,
2277 V4L2_CID_HBLANK, hblank, hblank,
2280 imx319->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
2282 /* fll >= exposure time + adjust parameter (default value is 18) */
2283 exposure_max = mode->fll_def - 18;
2284 imx319->exposure = v4l2_ctrl_new_std(ctrl_hdlr, &imx319_ctrl_ops,
2286 IMX319_EXPOSURE_MIN, exposure_max,
2287 IMX319_EXPOSURE_STEP,
2288 IMX319_EXPOSURE_DEFAULT);
2290 imx319->hflip = v4l2_ctrl_new_std(ctrl_hdlr, &imx319_ctrl_ops,
2291 V4L2_CID_HFLIP, 0, 1, 1, 0);
2293 imx319->hflip->flags |= V4L2_CTRL_FLAG_MODIFY_LAYOUT;
2294 imx319->vflip = v4l2_ctrl_new_std(ctrl_hdlr, &imx319_ctrl_ops,
2295 V4L2_CID_VFLIP, 0, 1, 1, 0);
2297 imx319->vflip->flags |= V4L2_CTRL_FLAG_MODIFY_LAYOUT;
2299 v4l2_ctrl_new_std(ctrl_hdlr, &imx319_ctrl_ops, V4L2_CID_ANALOGUE_GAIN,
2300 IMX319_ANA_GAIN_MIN, IMX319_ANA_GAIN_MAX,
2301 IMX319_ANA_GAIN_STEP, IMX319_ANA_GAIN_DEFAULT);
2304 v4l2_ctrl_new_std(ctrl_hdlr, &imx319_ctrl_ops, V4L2_CID_DIGITAL_GAIN,
2305 IMX319_DGTL_GAIN_MIN, IMX319_DGTL_GAIN_MAX,
2306 IMX319_DGTL_GAIN_STEP, IMX319_DGTL_GAIN_DEFAULT);
2308 v4l2_ctrl_new_std_menu_items(ctrl_hdlr, &imx319_ctrl_ops,
2309 V4L2_CID_TEST_PATTERN,
2310 ARRAY_SIZE(imx319_test_pattern_menu) - 1,
2311 0, 0, imx319_test_pattern_menu);
2312 if (ctrl_hdlr->error) {
2313 ret = ctrl_hdlr->error;
2314 dev_err(&client->dev, "control init failed: %d", ret);
2318 imx319->sd.ctrl_handler = ctrl_hdlr;
2323 v4l2_ctrl_handler_free(ctrl_hdlr);
2328 static struct imx319_hwcfg *imx319_get_hwcfg(struct device *dev)
2330 struct imx319_hwcfg *cfg;
2331 struct v4l2_fwnode_endpoint bus_cfg = {
2332 .bus_type = V4L2_MBUS_CSI2_DPHY
2334 struct fwnode_handle *ep;
2335 struct fwnode_handle *fwnode = dev_fwnode(dev);
2341 ep = fwnode_graph_get_next_endpoint(fwnode, NULL);
2345 ret = v4l2_fwnode_endpoint_alloc_parse(ep, &bus_cfg);
2349 cfg = devm_kzalloc(dev, sizeof(*cfg), GFP_KERNEL);
2353 ret = fwnode_property_read_u32(dev_fwnode(dev), "clock-frequency",
2356 dev_err(dev, "can't get clock frequency");
2360 dev_dbg(dev, "ext clk: %d", cfg->ext_clk);
2361 if (cfg->ext_clk != IMX319_EXT_CLK) {
2362 dev_err(dev, "external clock %d is not supported",
2367 ret = v4l2_link_freq_to_bitmap(dev, bus_cfg.link_frequencies,
2368 bus_cfg.nr_of_link_frequencies,
2369 link_freq_menu_items,
2370 ARRAY_SIZE(link_freq_menu_items),
2371 &cfg->link_freq_bitmap);
2375 v4l2_fwnode_endpoint_free(&bus_cfg);
2376 fwnode_handle_put(ep);
2380 v4l2_fwnode_endpoint_free(&bus_cfg);
2381 fwnode_handle_put(ep);
2385 static int imx319_probe(struct i2c_client *client)
2387 struct imx319 *imx319;
2391 imx319 = devm_kzalloc(&client->dev, sizeof(*imx319), GFP_KERNEL);
2395 mutex_init(&imx319->mutex);
2397 /* Initialize subdev */
2398 v4l2_i2c_subdev_init(&imx319->sd, client, &imx319_subdev_ops);
2400 full_power = acpi_dev_state_d0(&client->dev);
2402 /* Check module identity */
2403 ret = imx319_identify_module(imx319);
2405 dev_err(&client->dev, "failed to find sensor: %d", ret);
2410 imx319->hwcfg = imx319_get_hwcfg(&client->dev);
2411 if (!imx319->hwcfg) {
2412 dev_err(&client->dev, "failed to get hwcfg");
2417 /* Set default mode to max resolution */
2418 imx319->cur_mode = &supported_modes[0];
2420 ret = imx319_init_controls(imx319);
2422 dev_err(&client->dev, "failed to init controls: %d", ret);
2426 /* Initialize subdev */
2427 imx319->sd.internal_ops = &imx319_internal_ops;
2428 imx319->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE |
2429 V4L2_SUBDEV_FL_HAS_EVENTS;
2430 imx319->sd.entity.ops = &imx319_subdev_entity_ops;
2431 imx319->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;
2433 /* Initialize source pad */
2434 imx319->pad.flags = MEDIA_PAD_FL_SOURCE;
2435 ret = media_entity_pads_init(&imx319->sd.entity, 1, &imx319->pad);
2437 dev_err(&client->dev, "failed to init entity pads: %d", ret);
2438 goto error_handler_free;
2441 /* Set the device's state to active if it's in D0 state. */
2443 pm_runtime_set_active(&client->dev);
2444 pm_runtime_enable(&client->dev);
2445 pm_runtime_idle(&client->dev);
2447 ret = v4l2_async_register_subdev_sensor(&imx319->sd);
2449 goto error_media_entity_pm;
2453 error_media_entity_pm:
2454 pm_runtime_disable(&client->dev);
2455 pm_runtime_set_suspended(&client->dev);
2456 media_entity_cleanup(&imx319->sd.entity);
2459 v4l2_ctrl_handler_free(imx319->sd.ctrl_handler);
2462 mutex_destroy(&imx319->mutex);
2467 static void imx319_remove(struct i2c_client *client)
2469 struct v4l2_subdev *sd = i2c_get_clientdata(client);
2470 struct imx319 *imx319 = to_imx319(sd);
2472 v4l2_async_unregister_subdev(sd);
2473 media_entity_cleanup(&sd->entity);
2474 v4l2_ctrl_handler_free(sd->ctrl_handler);
2476 pm_runtime_disable(&client->dev);
2477 pm_runtime_set_suspended(&client->dev);
2479 mutex_destroy(&imx319->mutex);
2482 static const struct acpi_device_id imx319_acpi_ids[] __maybe_unused = {
2486 MODULE_DEVICE_TABLE(acpi, imx319_acpi_ids);
2488 static struct i2c_driver imx319_i2c_driver = {
2491 .acpi_match_table = ACPI_PTR(imx319_acpi_ids),
2493 .probe = imx319_probe,
2494 .remove = imx319_remove,
2495 .flags = I2C_DRV_ACPI_WAIVE_D0_PROBE,
2497 module_i2c_driver(imx319_i2c_driver);
2499 MODULE_AUTHOR("Qiu, Tianshu <tian.shu.qiu@intel.com>");
2500 MODULE_AUTHOR("Rapolu, Chiranjeevi");
2501 MODULE_AUTHOR("Bingbu Cao <bingbu.cao@intel.com>");
2502 MODULE_AUTHOR("Yang, Hyungwoo");
2503 MODULE_DESCRIPTION("Sony imx319 sensor driver");
2504 MODULE_LICENSE("GPL v2");