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media: i2c: imx258: Issue reset before starting streaming

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Whilst not documented, register 0x0103 bit 0 is the soft
reset for the sensor, so send it before trying to configure
the sensor.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Signed-off-by: Luis Garcia <git@luigi311.com>
Reviewed-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
This commit is contained in:
Dave Stevenson
2024-05-01 09:24:31 -06:00
committed by Hans Verkuil
parent c546429a60
commit 185025977c
1 changed files with 12 additions and 0 deletions
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12
drivers/media/i2c/imx258.c
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@@ -20,6 +20,8 @@
#define IMX258_MODE_STANDBY 0x00
#define IMX258_MODE_STREAMING 0x01
#define IMX258_REG_RESET 0x0103
/* Chip ID */
#define IMX258_REG_CHIP_ID 0x0016
#define IMX258_CHIP_ID 0x0258
@@ -1052,6 +1054,16 @@ static int imx258_start_streaming(struct imx258 *imx258)
const struct imx258_link_freq_config *link_freq_cfg;
int ret, link_freq_index;
ret = imx258_write_reg(imx258, IMX258_REG_RESET, IMX258_REG_VALUE_08BIT,
0x01);
if (ret) {
dev_err(&client->dev, "%s failed to reset sensor\n", __func__);
return ret;
}
/* 12ms is required from poweron to standby */
fsleep(12000);
/* Setup PLL */
link_freq_index = imx258->cur_mode->link_freq_index;
link_freq_cfg = &imx258->link_freq_configs[link_freq_index];