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media: imx8mq-mipi-csi2: Explicitly release reset

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Call reset_control_deassert() to explicitly release reset to make sure
reset bits are cleared since platform like i.MX8ULP can't clear reset
bits automatically.

Reviewed-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Guoniu Zhou <guoniu.zhou@nxp.com>
Link: https://patch.msgid.link/20251205-csi2_imx8ulp-v10-3-190cdadb20a3@nxp.com
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
This commit is contained in:
Guoniu Zhou 2025-12-05 17:07:45 +08:00 committed by Hans Verkuil
parent c0e5899e13
commit 6d79bb8fd2
1 changed files with 2 additions and 6 deletions
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8
drivers/media/platform/nxp/imx8mq-mipi-csi2.c
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@ -339,18 +339,14 @@ static int imx8mq_mipi_csi_sw_reset(struct csi_state *state)
{
int ret;
/*
* these are most likely self-clearing reset bits. to make it
* more clear, the reset-imx7 driver should implement the
* .reset() operation.
*/
ret = reset_control_assert(state->rst);
if (ret < 0) {
dev_err(state->dev, "Failed to assert resets: %d\n", ret);
return ret;
}
return 0;
/* Explicitly release reset to make sure reset bits are cleared. */
return reset_control_deassert(state->rst);
}
static void imx8mq_mipi_csi_set_params(struct csi_state *state)