diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-5.4/950-0647-media-i2c-imx219-Fix-power-sequence.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-5.4/950-0647-media-i2c-imx219-Fix-power-sequence.patch | 55 |
1 files changed, 0 insertions, 55 deletions
diff --git a/target/linux/bcm27xx/patches-5.4/950-0647-media-i2c-imx219-Fix-power-sequence.patch b/target/linux/bcm27xx/patches-5.4/950-0647-media-i2c-imx219-Fix-power-sequence.patch deleted file mode 100644 index b85d917878..0000000000 --- a/target/linux/bcm27xx/patches-5.4/950-0647-media-i2c-imx219-Fix-power-sequence.patch +++ /dev/null @@ -1,55 +0,0 @@ -From 0fec1c81707f5335d0b04b5e97d2ddd0b902377b Mon Sep 17 00:00:00 2001 -From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> -Date: Tue, 10 Mar 2020 14:17:07 +0100 -Subject: [PATCH] media: i2c: imx219: Fix power sequence - -Commit ca45448a56659c6df6e0436188e97f6cc65dea8a upstream. - -When supporting Rpi Camera v2 Module on the RZ/G2E, found the driver had -some issues with rcar mipi-csi driver. The sensor never entered into LP-11 -state. - -The powerup sequence in the datasheet[1] shows the sensor entering into -LP-11 in streaming mode, so to fix this issue transitions are performed -from "streaming -> standby" in the probe() after power up. - -With this commit the sensor is able to enter LP-11 mode during power up, -as expected by some CSI-2 controllers. - -[1] https://publiclab.org/system/images/photos/000/023/294/original/ -RASPBERRY_PI_CAMERA_V2_DATASHEET_IMX219PQH5_7.0.0_Datasheet_XXX.PDF - -Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> -Acked-by: Dave Stevenson <dave.stevenson@raspberrypi.com> -Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> -Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> ---- - drivers/media/i2c/imx219.c | 17 +++++++++++++++++ - 1 file changed, 17 insertions(+) - ---- a/drivers/media/i2c/imx219.c -+++ b/drivers/media/i2c/imx219.c -@@ -1224,6 +1224,23 @@ static int imx219_probe(struct i2c_clien - /* Set default mode to max resolution */ - imx219->mode = &supported_modes[0]; - -+ /* sensor doesn't enter LP-11 state upon power up until and unless -+ * streaming is started, so upon power up switch the modes to: -+ * streaming -> standby -+ */ -+ ret = imx219_write_reg(imx219, IMX219_REG_MODE_SELECT, -+ IMX219_REG_VALUE_08BIT, IMX219_MODE_STREAMING); -+ if (ret < 0) -+ goto error_power_off; -+ usleep_range(100, 110); -+ -+ /* put sensor back to standby mode */ -+ ret = imx219_write_reg(imx219, IMX219_REG_MODE_SELECT, -+ IMX219_REG_VALUE_08BIT, IMX219_MODE_STANDBY); -+ if (ret < 0) -+ goto error_power_off; -+ usleep_range(100, 110); -+ - ret = imx219_init_controls(imx219); - if (ret) - goto error_power_off; |