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media: i2c: imx296: Add OF option for vsync sink for XTRIG

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Copying our downstream patch for imx477 that allows configuration
of external synchronisation signals via DT, add the same to imx296.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
This commit is contained in:
Dave Stevenson
2025-04-29 15:38:06 +01:00
committed by Dom Cobley
parent b5426ae2cb
commit c0afa3e1e2
1 changed files with 10 additions and 3 deletions
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13
drivers/media/i2c/imx296.c
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@@ -205,6 +205,7 @@ struct imx296 {
const struct imx296_clk_params *clk_params;
bool mono;
int trigger_mode_of;
struct v4l2_subdev subdev;
struct media_pad pad;
@@ -645,16 +646,17 @@ static int imx296_setup(struct imx296 *sensor, struct v4l2_subdev_state *state)
static int imx296_stream_on(struct imx296 *sensor)
{
int ret = 0;
int ret = 0, tm;
imx296_write(sensor, IMX296_CTRL00, 0, &ret);
usleep_range(2000, 5000);
/* external trigger mode: 0=normal, 1=triggered */
tm = (sensor->trigger_mode_of >= 0) ? sensor->trigger_mode_of : trigger_mode;
imx296_write(sensor, IMX296_CTRL0B,
(trigger_mode == 1) ? IMX296_CTRL0B_TRIGEN : 0, &ret);
(tm == 1) ? IMX296_CTRL0B_TRIGEN : 0, &ret);
imx296_write(sensor, IMX296_LOWLAGTRG,
(trigger_mode == 1) ? IMX296_LOWLAGTRG_FAST : 0, &ret);
(tm == 1) ? IMX296_LOWLAGTRG_FAST : 0, &ret);
imx296_write(sensor, IMX296_CTRL0A, 0, &ret);
@@ -1078,6 +1080,7 @@ static int imx296_probe(struct i2c_client *client)
unsigned long clk_rate;
struct imx296 *sensor;
unsigned int i;
u32 tm_of;
int ret;
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
@@ -1144,6 +1147,10 @@ static int imx296_probe(struct i2c_client *client)
if (ret < 0)
goto err_power;
/* Default the trigger mode from OF to -1, which means invalid */
ret = of_property_read_u32(client->dev.of_node, "trigger-mode", &tm_of);
sensor->trigger_mode_of = (ret == 0) ? tm_of : -1;
/* Initialize the V4L2 subdev. */
ret = imx296_subdev_init(sensor);
if (ret < 0)