1 // SPDX-License-Identifier: GPL-2.0
5 * Copyright (C) 2017 Fuzhou Rockchip Electronics Co., Ltd.
9 #include <linux/device.h>
10 #include <linux/delay.h>
11 #include <linux/gpio/consumer.h>
12 #include <linux/i2c.h>
13 #include <linux/module.h>
14 #include <linux/pm_runtime.h>
15 #include <linux/regulator/consumer.h>
16 #include <linux/sysfs.h>
17 #include <media/media-entity.h>
18 #include <media/v4l2-async.h>
19 #include <media/v4l2-ctrls.h>
20 #include <media/v4l2-subdev.h>
22 #ifndef V4L2_CID_DIGITAL_GAIN
23 #define V4L2_CID_DIGITAL_GAIN V4L2_CID_GAIN
26 /* 45Mhz * 4 Binning */
27 #define OV5695_PIXEL_RATE (45 * 1000 * 1000 * 4)
28 #define OV5695_XVCLK_FREQ 24000000
30 #define CHIP_ID 0x005695
31 #define OV5695_REG_CHIP_ID 0x300a
33 #define OV5695_REG_CTRL_MODE 0x0100
34 #define OV5695_MODE_SW_STANDBY 0x0
35 #define OV5695_MODE_STREAMING BIT(0)
37 #define OV5695_REG_EXPOSURE 0x3500
38 #define OV5695_EXPOSURE_MIN 4
39 #define OV5695_EXPOSURE_STEP 1
40 #define OV5695_VTS_MAX 0x7fff
42 #define OV5695_REG_ANALOG_GAIN 0x3509
43 #define ANALOG_GAIN_MIN 0x10
44 #define ANALOG_GAIN_MAX 0xf8
45 #define ANALOG_GAIN_STEP 1
46 #define ANALOG_GAIN_DEFAULT 0xf8
48 #define OV5695_REG_DIGI_GAIN_H 0x350a
49 #define OV5695_REG_DIGI_GAIN_L 0x350b
50 #define OV5695_DIGI_GAIN_L_MASK 0x3f
51 #define OV5695_DIGI_GAIN_H_SHIFT 6
52 #define OV5695_DIGI_GAIN_MIN 0
53 #define OV5695_DIGI_GAIN_MAX (0x4000 - 1)
54 #define OV5695_DIGI_GAIN_STEP 1
55 #define OV5695_DIGI_GAIN_DEFAULT 1024
57 #define OV5695_REG_TEST_PATTERN 0x4503
58 #define OV5695_TEST_PATTERN_ENABLE 0x80
59 #define OV5695_TEST_PATTERN_DISABLE 0x0
61 #define OV5695_REG_VTS 0x380e
63 #define REG_NULL 0xFFFF
65 #define OV5695_REG_VALUE_08BIT 1
66 #define OV5695_REG_VALUE_16BIT 2
67 #define OV5695_REG_VALUE_24BIT 3
69 #define OV5695_LANES 2
70 #define OV5695_BITS_PER_SAMPLE 10
72 static const char * const ov5695_supply_names[] = {
73 "avdd", /* Analog power */
74 "dovdd", /* Digital I/O power */
75 "dvdd", /* Digital core power */
78 #define OV5695_NUM_SUPPLIES ARRAY_SIZE(ov5695_supply_names)
92 const struct regval *reg_list;
96 struct i2c_client *client;
98 struct gpio_desc *reset_gpio;
99 struct regulator_bulk_data supplies[OV5695_NUM_SUPPLIES];
101 struct v4l2_subdev subdev;
102 struct media_pad pad;
103 struct v4l2_ctrl_handler ctrl_handler;
104 struct v4l2_ctrl *exposure;
105 struct v4l2_ctrl *anal_gain;
106 struct v4l2_ctrl *digi_gain;
107 struct v4l2_ctrl *hblank;
108 struct v4l2_ctrl *vblank;
109 struct v4l2_ctrl *test_pattern;
112 const struct ov5695_mode *cur_mode;
115 #define to_ov5695(sd) container_of(sd, struct ov5695, subdev)
120 * linelength 672(0x2a0)
121 * framelength 2232(0x8b8)
122 * grabwindow_width 1296
123 * grabwindow_height 972
124 * max_framerate 30fps
125 * mipi_datarate per lane 840Mbps
127 static const struct regval ov5695_global_regs[] = {
295 * linelength 740(0x2e4)
296 * framelength 2024(0x7e8)
297 * grabwindow_width 2592
298 * grabwindow_height 1944
299 * max_framerate 30fps
300 * mipi_datarate per lane 840Mbps
302 static const struct regval ov5695_2592x1944_regs[] = {
337 * linelength 672(0x2a0)
338 * framelength 2232(0x8b8)
339 * grabwindow_width 1920
340 * grabwindow_height 1080
341 * max_framerate 30fps
342 * mipi_datarate per lane 840Mbps
344 static const struct regval ov5695_1920x1080_regs[] = {
379 * linelength 740(0x02e4)
380 * framelength 1012(0x03f4)
381 * grabwindow_width 1296
382 * grabwindow_height 972
383 * max_framerate 60fps
384 * mipi_datarate per lane 840Mbps
386 static const struct regval ov5695_1296x972_regs[] = {
562 * linelength 672(0x2a0)
563 * framelength 2232(0x8b8)
564 * grabwindow_width 1280
565 * grabwindow_height 720
566 * max_framerate 30fps
567 * mipi_datarate per lane 840Mbps
569 static const struct regval ov5695_1280x720_regs[] = {
604 * linelength 672(0x2a0)
605 * framelength 558(0x22e)
606 * grabwindow_width 640
607 * grabwindow_height 480
608 * max_framerate 120fps
609 * mipi_datarate per lane 840Mbps
611 static const struct regval ov5695_640x480_regs[] = {
643 static const struct ov5695_mode supported_modes[] = {
649 .hts_def = 0x02e4 * 4,
651 .reg_list = ov5695_2592x1944_regs,
658 .hts_def = 0x02a0 * 4,
660 .reg_list = ov5695_1920x1080_regs,
667 .hts_def = 0x02e4 * 4,
669 .reg_list = ov5695_1296x972_regs,
676 .hts_def = 0x02a0 * 4,
678 .reg_list = ov5695_1280x720_regs,
685 .hts_def = 0x02a0 * 4,
687 .reg_list = ov5695_640x480_regs,
691 #define OV5695_LINK_FREQ_420MHZ 420000000
692 static const s64 link_freq_menu_items[] = {
693 OV5695_LINK_FREQ_420MHZ
696 static const char * const ov5695_test_pattern_menu[] = {
698 "Vertical Color Bar Type 1",
699 "Vertical Color Bar Type 2",
700 "Vertical Color Bar Type 3",
701 "Vertical Color Bar Type 4"
704 /* Write registers up to 4 at a time */
705 static int ov5695_write_reg(struct i2c_client *client, u16 reg,
719 val_be = cpu_to_be32(val);
720 val_p = (u8 *)&val_be;
725 buf[buf_i++] = val_p[val_i++];
727 if (i2c_master_send(client, buf, len + 2) != len + 2)
733 static int ov5695_write_array(struct i2c_client *client,
734 const struct regval *regs)
739 for (i = 0; ret == 0 && regs[i].addr != REG_NULL; i++)
740 ret = ov5695_write_reg(client, regs[i].addr,
741 OV5695_REG_VALUE_08BIT, regs[i].val);
746 /* Read registers up to 4 at a time */
747 static int ov5695_read_reg(struct i2c_client *client, u16 reg, unsigned int len,
750 struct i2c_msg msgs[2];
753 __be16 reg_addr_be = cpu_to_be16(reg);
759 data_be_p = (u8 *)&data_be;
760 /* Write register address */
761 msgs[0].addr = client->addr;
764 msgs[0].buf = (u8 *)®_addr_be;
766 /* Read data from register */
767 msgs[1].addr = client->addr;
768 msgs[1].flags = I2C_M_RD;
770 msgs[1].buf = &data_be_p[4 - len];
772 ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
773 if (ret != ARRAY_SIZE(msgs))
776 *val = be32_to_cpu(data_be);
781 static int ov5695_get_reso_dist(const struct ov5695_mode *mode,
782 struct v4l2_mbus_framefmt *framefmt)
784 return abs(mode->width - framefmt->width) +
785 abs(mode->height - framefmt->height);
788 static const struct ov5695_mode *
789 ov5695_find_best_fit(struct v4l2_subdev_format *fmt)
791 struct v4l2_mbus_framefmt *framefmt = &fmt->format;
793 int cur_best_fit = 0;
794 int cur_best_fit_dist = -1;
797 for (i = 0; i < ARRAY_SIZE(supported_modes); i++) {
798 dist = ov5695_get_reso_dist(&supported_modes[i], framefmt);
799 if (cur_best_fit_dist == -1 || dist < cur_best_fit_dist) {
800 cur_best_fit_dist = dist;
805 return &supported_modes[cur_best_fit];
808 static int ov5695_set_fmt(struct v4l2_subdev *sd,
809 struct v4l2_subdev_pad_config *cfg,
810 struct v4l2_subdev_format *fmt)
812 struct ov5695 *ov5695 = to_ov5695(sd);
813 const struct ov5695_mode *mode;
814 s64 h_blank, vblank_def;
816 mutex_lock(&ov5695->mutex);
818 mode = ov5695_find_best_fit(fmt);
819 fmt->format.code = MEDIA_BUS_FMT_SBGGR10_1X10;
820 fmt->format.width = mode->width;
821 fmt->format.height = mode->height;
822 fmt->format.field = V4L2_FIELD_NONE;
823 if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
824 #ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
825 *v4l2_subdev_get_try_format(sd, cfg, fmt->pad) = fmt->format;
827 mutex_unlock(&ov5695->mutex);
831 ov5695->cur_mode = mode;
832 h_blank = mode->hts_def - mode->width;
833 __v4l2_ctrl_modify_range(ov5695->hblank, h_blank,
834 h_blank, 1, h_blank);
835 vblank_def = mode->vts_def - mode->height;
836 __v4l2_ctrl_modify_range(ov5695->vblank, vblank_def,
837 OV5695_VTS_MAX - mode->height,
841 mutex_unlock(&ov5695->mutex);
846 static int ov5695_get_fmt(struct v4l2_subdev *sd,
847 struct v4l2_subdev_pad_config *cfg,
848 struct v4l2_subdev_format *fmt)
850 struct ov5695 *ov5695 = to_ov5695(sd);
851 const struct ov5695_mode *mode = ov5695->cur_mode;
853 mutex_lock(&ov5695->mutex);
854 if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
855 #ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
856 fmt->format = *v4l2_subdev_get_try_format(sd, cfg, fmt->pad);
858 mutex_unlock(&ov5695->mutex);
862 fmt->format.width = mode->width;
863 fmt->format.height = mode->height;
864 fmt->format.code = MEDIA_BUS_FMT_SBGGR10_1X10;
865 fmt->format.field = V4L2_FIELD_NONE;
867 mutex_unlock(&ov5695->mutex);
872 static int ov5695_enum_mbus_code(struct v4l2_subdev *sd,
873 struct v4l2_subdev_pad_config *cfg,
874 struct v4l2_subdev_mbus_code_enum *code)
876 if (code->index != 0)
878 code->code = MEDIA_BUS_FMT_SBGGR10_1X10;
883 static int ov5695_enum_frame_sizes(struct v4l2_subdev *sd,
884 struct v4l2_subdev_pad_config *cfg,
885 struct v4l2_subdev_frame_size_enum *fse)
887 if (fse->index >= ARRAY_SIZE(supported_modes))
890 if (fse->code != MEDIA_BUS_FMT_SBGGR10_1X10)
893 fse->min_width = supported_modes[fse->index].width;
894 fse->max_width = supported_modes[fse->index].width;
895 fse->max_height = supported_modes[fse->index].height;
896 fse->min_height = supported_modes[fse->index].height;
901 static int ov5695_enable_test_pattern(struct ov5695 *ov5695, u32 pattern)
906 val = (pattern - 1) | OV5695_TEST_PATTERN_ENABLE;
908 val = OV5695_TEST_PATTERN_DISABLE;
910 return ov5695_write_reg(ov5695->client, OV5695_REG_TEST_PATTERN,
911 OV5695_REG_VALUE_08BIT, val);
914 static int __ov5695_start_stream(struct ov5695 *ov5695)
918 ret = ov5695_write_array(ov5695->client, ov5695_global_regs);
921 ret = ov5695_write_array(ov5695->client, ov5695->cur_mode->reg_list);
925 /* In case these controls are set before streaming */
926 ret = __v4l2_ctrl_handler_setup(&ov5695->ctrl_handler);
930 return ov5695_write_reg(ov5695->client, OV5695_REG_CTRL_MODE,
931 OV5695_REG_VALUE_08BIT, OV5695_MODE_STREAMING);
934 static int __ov5695_stop_stream(struct ov5695 *ov5695)
936 return ov5695_write_reg(ov5695->client, OV5695_REG_CTRL_MODE,
937 OV5695_REG_VALUE_08BIT, OV5695_MODE_SW_STANDBY);
940 static int ov5695_s_stream(struct v4l2_subdev *sd, int on)
942 struct ov5695 *ov5695 = to_ov5695(sd);
943 struct i2c_client *client = ov5695->client;
946 mutex_lock(&ov5695->mutex);
948 if (on == ov5695->streaming)
949 goto unlock_and_return;
952 ret = pm_runtime_get_sync(&client->dev);
954 pm_runtime_put_noidle(&client->dev);
955 goto unlock_and_return;
958 ret = __ov5695_start_stream(ov5695);
960 v4l2_err(sd, "start stream failed while write regs\n");
961 pm_runtime_put(&client->dev);
962 goto unlock_and_return;
965 __ov5695_stop_stream(ov5695);
966 pm_runtime_put(&client->dev);
969 ov5695->streaming = on;
972 mutex_unlock(&ov5695->mutex);
977 static int __ov5695_power_on(struct ov5695 *ov5695)
980 struct device *dev = &ov5695->client->dev;
982 ret = clk_prepare_enable(ov5695->xvclk);
984 dev_err(dev, "Failed to enable xvclk\n");
988 gpiod_set_value_cansleep(ov5695->reset_gpio, 1);
991 * The hardware requires the regulators to be powered on in order,
992 * so enable them one by one.
994 for (i = 0; i < OV5695_NUM_SUPPLIES; i++) {
995 ret = regulator_enable(ov5695->supplies[i].consumer);
997 dev_err(dev, "Failed to enable %s: %d\n",
998 ov5695->supplies[i].supply, ret);
999 goto disable_reg_clk;
1003 gpiod_set_value_cansleep(ov5695->reset_gpio, 0);
1005 usleep_range(1000, 1200);
1010 for (--i; i >= 0; i--)
1011 regulator_disable(ov5695->supplies[i].consumer);
1012 clk_disable_unprepare(ov5695->xvclk);
1017 static void __ov5695_power_off(struct ov5695 *ov5695)
1019 struct device *dev = &ov5695->client->dev;
1022 clk_disable_unprepare(ov5695->xvclk);
1023 gpiod_set_value_cansleep(ov5695->reset_gpio, 1);
1026 * The hardware requires the regulators to be powered off in order,
1027 * so disable them one by one.
1029 for (i = OV5695_NUM_SUPPLIES - 1; i >= 0; i--) {
1030 ret = regulator_disable(ov5695->supplies[i].consumer);
1032 dev_err(dev, "Failed to disable %s: %d\n",
1033 ov5695->supplies[i].supply, ret);
1037 static int __maybe_unused ov5695_runtime_resume(struct device *dev)
1039 struct i2c_client *client = to_i2c_client(dev);
1040 struct v4l2_subdev *sd = i2c_get_clientdata(client);
1041 struct ov5695 *ov5695 = to_ov5695(sd);
1043 return __ov5695_power_on(ov5695);
1046 static int __maybe_unused ov5695_runtime_suspend(struct device *dev)
1048 struct i2c_client *client = to_i2c_client(dev);
1049 struct v4l2_subdev *sd = i2c_get_clientdata(client);
1050 struct ov5695 *ov5695 = to_ov5695(sd);
1052 __ov5695_power_off(ov5695);
1057 #ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
1058 static int ov5695_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
1060 struct ov5695 *ov5695 = to_ov5695(sd);
1061 struct v4l2_mbus_framefmt *try_fmt =
1062 v4l2_subdev_get_try_format(sd, fh->pad, 0);
1063 const struct ov5695_mode *def_mode = &supported_modes[0];
1065 mutex_lock(&ov5695->mutex);
1066 /* Initialize try_fmt */
1067 try_fmt->width = def_mode->width;
1068 try_fmt->height = def_mode->height;
1069 try_fmt->code = MEDIA_BUS_FMT_SBGGR10_1X10;
1070 try_fmt->field = V4L2_FIELD_NONE;
1072 mutex_unlock(&ov5695->mutex);
1073 /* No crop or compose */
1079 static const struct dev_pm_ops ov5695_pm_ops = {
1080 SET_RUNTIME_PM_OPS(ov5695_runtime_suspend,
1081 ov5695_runtime_resume, NULL)
1084 #ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
1085 static const struct v4l2_subdev_internal_ops ov5695_internal_ops = {
1086 .open = ov5695_open,
1090 static const struct v4l2_subdev_video_ops ov5695_video_ops = {
1091 .s_stream = ov5695_s_stream,
1094 static const struct v4l2_subdev_pad_ops ov5695_pad_ops = {
1095 .enum_mbus_code = ov5695_enum_mbus_code,
1096 .enum_frame_size = ov5695_enum_frame_sizes,
1097 .get_fmt = ov5695_get_fmt,
1098 .set_fmt = ov5695_set_fmt,
1101 static const struct v4l2_subdev_ops ov5695_subdev_ops = {
1102 .video = &ov5695_video_ops,
1103 .pad = &ov5695_pad_ops,
1106 static int ov5695_set_ctrl(struct v4l2_ctrl *ctrl)
1108 struct ov5695 *ov5695 = container_of(ctrl->handler,
1109 struct ov5695, ctrl_handler);
1110 struct i2c_client *client = ov5695->client;
1114 /* Propagate change of current control to all related controls */
1116 case V4L2_CID_VBLANK:
1117 /* Update max exposure while meeting expected vblanking */
1118 max = ov5695->cur_mode->height + ctrl->val - 4;
1119 __v4l2_ctrl_modify_range(ov5695->exposure,
1120 ov5695->exposure->minimum, max,
1121 ov5695->exposure->step,
1122 ov5695->exposure->default_value);
1126 if (!pm_runtime_get_if_in_use(&client->dev))
1130 case V4L2_CID_EXPOSURE:
1131 /* 4 least significant bits of expsoure are fractional part */
1132 ret = ov5695_write_reg(ov5695->client, OV5695_REG_EXPOSURE,
1133 OV5695_REG_VALUE_24BIT, ctrl->val << 4);
1135 case V4L2_CID_ANALOGUE_GAIN:
1136 ret = ov5695_write_reg(ov5695->client, OV5695_REG_ANALOG_GAIN,
1137 OV5695_REG_VALUE_08BIT, ctrl->val);
1139 case V4L2_CID_DIGITAL_GAIN:
1140 ret = ov5695_write_reg(ov5695->client, OV5695_REG_DIGI_GAIN_L,
1141 OV5695_REG_VALUE_08BIT,
1142 ctrl->val & OV5695_DIGI_GAIN_L_MASK);
1143 ret = ov5695_write_reg(ov5695->client, OV5695_REG_DIGI_GAIN_H,
1144 OV5695_REG_VALUE_08BIT,
1145 ctrl->val >> OV5695_DIGI_GAIN_H_SHIFT);
1147 case V4L2_CID_VBLANK:
1148 ret = ov5695_write_reg(ov5695->client, OV5695_REG_VTS,
1149 OV5695_REG_VALUE_16BIT,
1150 ctrl->val + ov5695->cur_mode->height);
1152 case V4L2_CID_TEST_PATTERN:
1153 ret = ov5695_enable_test_pattern(ov5695, ctrl->val);
1156 dev_warn(&client->dev, "%s Unhandled id:0x%x, val:0x%x\n",
1157 __func__, ctrl->id, ctrl->val);
1161 pm_runtime_put(&client->dev);
1166 static const struct v4l2_ctrl_ops ov5695_ctrl_ops = {
1167 .s_ctrl = ov5695_set_ctrl,
1170 static int ov5695_initialize_controls(struct ov5695 *ov5695)
1172 const struct ov5695_mode *mode;
1173 struct v4l2_ctrl_handler *handler;
1174 struct v4l2_ctrl *ctrl;
1175 s64 exposure_max, vblank_def;
1179 handler = &ov5695->ctrl_handler;
1180 mode = ov5695->cur_mode;
1181 ret = v4l2_ctrl_handler_init(handler, 8);
1184 handler->lock = &ov5695->mutex;
1186 ctrl = v4l2_ctrl_new_int_menu(handler, NULL, V4L2_CID_LINK_FREQ,
1187 0, 0, link_freq_menu_items);
1189 ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
1191 v4l2_ctrl_new_std(handler, NULL, V4L2_CID_PIXEL_RATE,
1192 0, OV5695_PIXEL_RATE, 1, OV5695_PIXEL_RATE);
1194 h_blank = mode->hts_def - mode->width;
1195 ov5695->hblank = v4l2_ctrl_new_std(handler, NULL, V4L2_CID_HBLANK,
1196 h_blank, h_blank, 1, h_blank);
1198 ov5695->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
1200 vblank_def = mode->vts_def - mode->height;
1201 ov5695->vblank = v4l2_ctrl_new_std(handler, &ov5695_ctrl_ops,
1202 V4L2_CID_VBLANK, vblank_def,
1203 OV5695_VTS_MAX - mode->height,
1206 exposure_max = mode->vts_def - 4;
1207 ov5695->exposure = v4l2_ctrl_new_std(handler, &ov5695_ctrl_ops,
1208 V4L2_CID_EXPOSURE, OV5695_EXPOSURE_MIN,
1209 exposure_max, OV5695_EXPOSURE_STEP,
1212 ov5695->anal_gain = v4l2_ctrl_new_std(handler, &ov5695_ctrl_ops,
1213 V4L2_CID_ANALOGUE_GAIN, ANALOG_GAIN_MIN,
1214 ANALOG_GAIN_MAX, ANALOG_GAIN_STEP,
1215 ANALOG_GAIN_DEFAULT);
1218 ov5695->digi_gain = v4l2_ctrl_new_std(handler, &ov5695_ctrl_ops,
1219 V4L2_CID_DIGITAL_GAIN, OV5695_DIGI_GAIN_MIN,
1220 OV5695_DIGI_GAIN_MAX, OV5695_DIGI_GAIN_STEP,
1221 OV5695_DIGI_GAIN_DEFAULT);
1223 ov5695->test_pattern = v4l2_ctrl_new_std_menu_items(handler,
1224 &ov5695_ctrl_ops, V4L2_CID_TEST_PATTERN,
1225 ARRAY_SIZE(ov5695_test_pattern_menu) - 1,
1226 0, 0, ov5695_test_pattern_menu);
1228 if (handler->error) {
1229 ret = handler->error;
1230 dev_err(&ov5695->client->dev,
1231 "Failed to init controls(%d)\n", ret);
1232 goto err_free_handler;
1235 ov5695->subdev.ctrl_handler = handler;
1240 v4l2_ctrl_handler_free(handler);
1245 static int ov5695_check_sensor_id(struct ov5695 *ov5695,
1246 struct i2c_client *client)
1248 struct device *dev = &ov5695->client->dev;
1252 ret = ov5695_read_reg(client, OV5695_REG_CHIP_ID,
1253 OV5695_REG_VALUE_24BIT, &id);
1254 if (id != CHIP_ID) {
1255 dev_err(dev, "Unexpected sensor id(%06x), ret(%d)\n", id, ret);
1259 dev_info(dev, "Detected OV%06x sensor\n", CHIP_ID);
1264 static int ov5695_configure_regulators(struct ov5695 *ov5695)
1268 for (i = 0; i < OV5695_NUM_SUPPLIES; i++)
1269 ov5695->supplies[i].supply = ov5695_supply_names[i];
1271 return devm_regulator_bulk_get(&ov5695->client->dev,
1272 OV5695_NUM_SUPPLIES,
1276 static int ov5695_probe(struct i2c_client *client,
1277 const struct i2c_device_id *id)
1279 struct device *dev = &client->dev;
1280 struct ov5695 *ov5695;
1281 struct v4l2_subdev *sd;
1284 ov5695 = devm_kzalloc(dev, sizeof(*ov5695), GFP_KERNEL);
1288 ov5695->client = client;
1289 ov5695->cur_mode = &supported_modes[0];
1291 ov5695->xvclk = devm_clk_get(dev, "xvclk");
1292 if (IS_ERR(ov5695->xvclk)) {
1293 dev_err(dev, "Failed to get xvclk\n");
1296 ret = clk_set_rate(ov5695->xvclk, OV5695_XVCLK_FREQ);
1298 dev_err(dev, "Failed to set xvclk rate (24MHz)\n");
1301 if (clk_get_rate(ov5695->xvclk) != OV5695_XVCLK_FREQ)
1302 dev_warn(dev, "xvclk mismatched, modes are based on 24MHz\n");
1304 ov5695->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
1305 if (IS_ERR(ov5695->reset_gpio)) {
1306 dev_err(dev, "Failed to get reset-gpios\n");
1310 ret = ov5695_configure_regulators(ov5695);
1312 dev_err(dev, "Failed to get power regulators\n");
1316 mutex_init(&ov5695->mutex);
1318 sd = &ov5695->subdev;
1319 v4l2_i2c_subdev_init(sd, client, &ov5695_subdev_ops);
1320 ret = ov5695_initialize_controls(ov5695);
1322 goto err_destroy_mutex;
1324 ret = __ov5695_power_on(ov5695);
1326 goto err_free_handler;
1328 ret = ov5695_check_sensor_id(ov5695, client);
1332 #ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
1333 sd->internal_ops = &ov5695_internal_ops;
1334 sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
1336 #if defined(CONFIG_MEDIA_CONTROLLER)
1337 ov5695->pad.flags = MEDIA_PAD_FL_SOURCE;
1338 sd->entity.function = MEDIA_ENT_F_CAM_SENSOR;
1339 ret = media_entity_pads_init(&sd->entity, 1, &ov5695->pad);
1344 ret = v4l2_async_register_subdev(sd);
1346 dev_err(dev, "v4l2 async register subdev failed\n");
1347 goto err_clean_entity;
1350 pm_runtime_set_active(dev);
1351 pm_runtime_enable(dev);
1352 pm_runtime_idle(dev);
1357 #if defined(CONFIG_MEDIA_CONTROLLER)
1358 media_entity_cleanup(&sd->entity);
1361 __ov5695_power_off(ov5695);
1363 v4l2_ctrl_handler_free(&ov5695->ctrl_handler);
1365 mutex_destroy(&ov5695->mutex);
1370 static int ov5695_remove(struct i2c_client *client)
1372 struct v4l2_subdev *sd = i2c_get_clientdata(client);
1373 struct ov5695 *ov5695 = to_ov5695(sd);
1375 v4l2_async_unregister_subdev(sd);
1376 #if defined(CONFIG_MEDIA_CONTROLLER)
1377 media_entity_cleanup(&sd->entity);
1379 v4l2_ctrl_handler_free(&ov5695->ctrl_handler);
1380 mutex_destroy(&ov5695->mutex);
1382 pm_runtime_disable(&client->dev);
1383 if (!pm_runtime_status_suspended(&client->dev))
1384 __ov5695_power_off(ov5695);
1385 pm_runtime_set_suspended(&client->dev);
1390 #if IS_ENABLED(CONFIG_OF)
1391 static const struct of_device_id ov5695_of_match[] = {
1392 { .compatible = "ovti,ov5695" },
1395 MODULE_DEVICE_TABLE(of, ov5695_of_match);
1398 static struct i2c_driver ov5695_i2c_driver = {
1401 .pm = &ov5695_pm_ops,
1402 .of_match_table = of_match_ptr(ov5695_of_match),
1404 .probe = &ov5695_probe,
1405 .remove = &ov5695_remove,
1408 module_i2c_driver(ov5695_i2c_driver);
1410 MODULE_DESCRIPTION("OmniVision ov5695 sensor driver");
1411 MODULE_LICENSE("GPL v2");