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path: root/drivers/media/i2c/ov2685.c
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Diffstat (limited to 'drivers/media/i2c/ov2685.c')
-rw-r--r--drivers/media/i2c/ov2685.c128
1 files changed, 88 insertions, 40 deletions
diff --git a/drivers/media/i2c/ov2685.c b/drivers/media/i2c/ov2685.c
index b6e010ea3249..4911a4eea126 100644
--- a/drivers/media/i2c/ov2685.c
+++ b/drivers/media/i2c/ov2685.c
@@ -17,6 +17,7 @@
#include <media/media-entity.h>
#include <media/v4l2-async.h>
#include <media/v4l2-ctrls.h>
+#include <media/v4l2-fwnode.h>
#include <media/v4l2-subdev.h>
#define CHIP_ID 0x2685
@@ -55,6 +56,9 @@
#define OV2685_REG_VALUE_16BIT 2
#define OV2685_REG_VALUE_24BIT 3
+#define OV2685_NATIVE_WIDTH 1616
+#define OV2685_NATIVE_HEIGHT 1216
+
#define OV2685_LANES 1
#define OV2685_BITS_PER_SAMPLE 10
@@ -77,6 +81,7 @@ struct ov2685_mode {
u32 exp_def;
u32 hts_def;
u32 vts_def;
+ const struct v4l2_rect *analog_crop;
const struct regval *reg_list;
};
@@ -86,7 +91,6 @@ struct ov2685 {
struct gpio_desc *reset_gpio;
struct regulator_bulk_data supplies[OV2685_NUM_SUPPLIES];
- bool streaming;
struct mutex mutex;
struct v4l2_subdev subdev;
struct media_pad pad;
@@ -230,6 +234,13 @@ static const int ov2685_test_pattern_val[] = {
OV2685_TEST_PATTERN_COLOR_SQUARE,
};
+static const struct v4l2_rect ov2685_analog_crop = {
+ .left = 8,
+ .top = 8,
+ .width = 1600,
+ .height = 1200,
+};
+
static const struct ov2685_mode supported_modes[] = {
{
.width = 1600,
@@ -237,6 +248,7 @@ static const struct ov2685_mode supported_modes[] = {
.exp_def = 0x04ee,
.hts_def = 0x06a4,
.vts_def = 0x050e,
+ .analog_crop = &ov2685_analog_crop,
.reg_list = ov2685_1600x1200_regs,
},
};
@@ -383,6 +395,53 @@ static int ov2685_enum_frame_sizes(struct v4l2_subdev *sd,
return 0;
}
+static const struct v4l2_rect *
+__ov2685_get_pad_crop(struct ov2685 *ov2685,
+ struct v4l2_subdev_state *state, unsigned int pad,
+ enum v4l2_subdev_format_whence which)
+{
+ const struct ov2685_mode *mode = ov2685->cur_mode;
+
+ switch (which) {
+ case V4L2_SUBDEV_FORMAT_TRY:
+ return v4l2_subdev_state_get_crop(state, pad);
+ case V4L2_SUBDEV_FORMAT_ACTIVE:
+ return mode->analog_crop;
+ }
+
+ return NULL;
+}
+
+static int ov2685_get_selection(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_selection *sel)
+{
+ struct ov2685 *ov2685 = to_ov2685(sd);
+
+ switch (sel->target) {
+ case V4L2_SEL_TGT_CROP:
+ mutex_lock(&ov2685->mutex);
+ sel->r = *__ov2685_get_pad_crop(ov2685, sd_state, sel->pad,
+ sel->which);
+ mutex_unlock(&ov2685->mutex);
+ break;
+ case V4L2_SEL_TGT_NATIVE_SIZE:
+ case V4L2_SEL_TGT_CROP_BOUNDS:
+ sel->r.top = 0;
+ sel->r.left = 0;
+ sel->r.width = OV2685_NATIVE_WIDTH;
+ sel->r.height = OV2685_NATIVE_HEIGHT;
+ break;
+ case V4L2_SEL_TGT_CROP_DEFAULT:
+ sel->r = ov2685_analog_crop;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
/* Calculate the delay in us by clock rate and clock cycles */
static inline u32 ov2685_cal_delay(u32 cycles)
{
@@ -419,8 +478,10 @@ static int __ov2685_power_on(struct ov2685 *ov2685)
* writing register before .s_stream() as a workaround
*/
ret = ov2685_write_array(ov2685->client, ov2685->cur_mode->reg_list);
- if (ret)
+ if (ret) {
+ dev_err(dev, "Failed to set regs for power on\n");
goto disable_supplies;
+ }
return 0;
@@ -451,10 +512,6 @@ static int ov2685_s_stream(struct v4l2_subdev *sd, int on)
mutex_lock(&ov2685->mutex);
- on = !!on;
- if (on == ov2685->streaming)
- goto unlock_and_return;
-
if (on) {
ret = pm_runtime_resume_and_get(&ov2685->client->dev);
if (ret < 0)
@@ -477,15 +534,12 @@ static int ov2685_s_stream(struct v4l2_subdev *sd, int on)
pm_runtime_put(&ov2685->client->dev);
}
- ov2685->streaming = on;
-
unlock_and_return:
mutex_unlock(&ov2685->mutex);
return ret;
}
-#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
static int ov2685_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
{
struct ov2685 *ov2685 = to_ov2685(sd);
@@ -493,7 +547,7 @@ static int ov2685_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
mutex_lock(&ov2685->mutex);
- try_fmt = v4l2_subdev_get_try_format(sd, fh->state, 0);
+ try_fmt = v4l2_subdev_state_get_format(fh->state, 0);
/* Initialize try_fmt */
ov2685_fill_fmt(&supported_modes[0], try_fmt);
@@ -501,7 +555,6 @@ static int ov2685_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
return 0;
}
-#endif
static int __maybe_unused ov2685_runtime_resume(struct device *dev)
{
@@ -589,6 +642,8 @@ static const struct v4l2_subdev_pad_ops ov2685_pad_ops = {
.enum_frame_size = ov2685_enum_frame_sizes,
.get_fmt = ov2685_get_fmt,
.set_fmt = ov2685_set_fmt,
+ .get_selection = ov2685_get_selection,
+ .set_selection = ov2685_get_selection,
};
static const struct v4l2_subdev_ops ov2685_subdev_ops = {
@@ -596,11 +651,9 @@ static const struct v4l2_subdev_ops ov2685_subdev_ops = {
.pad = &ov2685_pad_ops,
};
-#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
static const struct v4l2_subdev_internal_ops ov2685_internal_ops = {
.open = ov2685_open,
};
-#endif
static const struct v4l2_ctrl_ops ov2685_ctrl_ops = {
.s_ctrl = ov2685_set_ctrl,
@@ -611,13 +664,14 @@ static int ov2685_initialize_controls(struct ov2685 *ov2685)
const struct ov2685_mode *mode;
struct v4l2_ctrl_handler *handler;
struct v4l2_ctrl *ctrl;
+ struct v4l2_fwnode_device_properties props;
u64 exposure_max;
u32 pixel_rate, h_blank;
int ret;
handler = &ov2685->ctrl_handler;
mode = ov2685->cur_mode;
- ret = v4l2_ctrl_handler_init(handler, 8);
+ ret = v4l2_ctrl_handler_init(handler, 10);
if (ret)
return ret;
handler->lock = &ov2685->mutex;
@@ -659,6 +713,15 @@ static int ov2685_initialize_controls(struct ov2685 *ov2685)
ARRAY_SIZE(ov2685_test_pattern_menu) - 1,
0, 0, ov2685_test_pattern_menu);
+ /* set properties from fwnode (e.g. rotation, orientation) */
+ ret = v4l2_fwnode_device_parse(&ov2685->client->dev, &props);
+ if (ret)
+ goto err_free_handler;
+
+ ret = v4l2_ctrl_new_fwnode_properties(handler, &ov2685_ctrl_ops, &props);
+ if (ret)
+ goto err_free_handler;
+
if (handler->error) {
ret = handler->error;
dev_err(&ov2685->client->dev,
@@ -707,8 +770,7 @@ static int ov2685_configure_regulators(struct ov2685 *ov2685)
ov2685->supplies);
}
-static int ov2685_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
+static int ov2685_probe(struct i2c_client *client)
{
struct device *dev = &client->dev;
struct ov2685 *ov2685;
@@ -721,20 +783,16 @@ static int ov2685_probe(struct i2c_client *client,
ov2685->client = client;
ov2685->cur_mode = &supported_modes[0];
- ov2685->xvclk = devm_clk_get(dev, "xvclk");
- if (IS_ERR(ov2685->xvclk)) {
- dev_err(dev, "Failed to get xvclk\n");
- return -EINVAL;
- }
- ret = clk_set_rate(ov2685->xvclk, OV2685_XVCLK_FREQ);
- if (ret < 0) {
- dev_err(dev, "Failed to set xvclk rate (24MHz)\n");
- return ret;
- }
+ ov2685->xvclk = devm_v4l2_sensor_clk_get_legacy(dev, "xvclk", true,
+ OV2685_XVCLK_FREQ);
+ if (IS_ERR(ov2685->xvclk))
+ return dev_err_probe(dev, PTR_ERR(ov2685->xvclk),
+ "Failed to get xvclk\n");
+
if (clk_get_rate(ov2685->xvclk) != OV2685_XVCLK_FREQ)
dev_warn(dev, "xvclk mismatched, modes are based on 24MHz\n");
- ov2685->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);
+ ov2685->reset_gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_LOW);
if (IS_ERR(ov2685->reset_gpio)) {
dev_err(dev, "Failed to get reset-gpios\n");
return -EINVAL;
@@ -760,17 +818,13 @@ static int ov2685_probe(struct i2c_client *client,
if (ret)
goto err_power_off;
-#ifdef CONFIG_VIDEO_V4L2_SUBDEV_API
ov2685->subdev.internal_ops = &ov2685_internal_ops;
ov2685->subdev.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
-#endif
-#if defined(CONFIG_MEDIA_CONTROLLER)
ov2685->pad.flags = MEDIA_PAD_FL_SOURCE;
ov2685->subdev.entity.function = MEDIA_ENT_F_CAM_SENSOR;
ret = media_entity_pads_init(&ov2685->subdev.entity, 1, &ov2685->pad);
if (ret < 0)
goto err_power_off;
-#endif
ret = v4l2_async_register_subdev(&ov2685->subdev);
if (ret) {
@@ -785,9 +839,7 @@ static int ov2685_probe(struct i2c_client *client,
return 0;
err_clean_entity:
-#if defined(CONFIG_MEDIA_CONTROLLER)
media_entity_cleanup(&ov2685->subdev.entity);
-#endif
err_power_off:
__ov2685_power_off(ov2685);
err_free_handler:
@@ -798,15 +850,13 @@ err_destroy_mutex:
return ret;
}
-static int ov2685_remove(struct i2c_client *client)
+static void ov2685_remove(struct i2c_client *client)
{
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct ov2685 *ov2685 = to_ov2685(sd);
v4l2_async_unregister_subdev(sd);
-#if defined(CONFIG_MEDIA_CONTROLLER)
media_entity_cleanup(&sd->entity);
-#endif
v4l2_ctrl_handler_free(&ov2685->ctrl_handler);
mutex_destroy(&ov2685->mutex);
@@ -814,8 +864,6 @@ static int ov2685_remove(struct i2c_client *client)
if (!pm_runtime_status_suspended(&client->dev))
__ov2685_power_off(ov2685);
pm_runtime_set_suspended(&client->dev);
-
- return 0;
}
#if IS_ENABLED(CONFIG_OF)
@@ -832,8 +880,8 @@ static struct i2c_driver ov2685_i2c_driver = {
.pm = &ov2685_pm_ops,
.of_match_table = of_match_ptr(ov2685_of_match),
},
- .probe = &ov2685_probe,
- .remove = &ov2685_remove,
+ .probe = ov2685_probe,
+ .remove = ov2685_remove,
};
module_i2c_driver(ov2685_i2c_driver);