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authorRobby Cai <robby.cai@nxp.com>2026-06-19 15:31:15 +0800
committerPhilipp Zabel <p.zabel@pengutronix.de>2026-07-01 15:08:14 +0200
commit71827776667f4e4677a4fa806bcfb24d4b8dd9d7 (patch)
treed7ff126bdad962fa8f9ef3c08080cac995422792 /Documentation/tty/git@git.tavy.me:linux.git
parent1a8c89f8c112c75e84ff9a140f969e372aed0c9a (diff)
reset: imx7: Correct polarity of MIPI CSI resets on i.MX8MQ
On i.MX8MQ, the MIPI CSI reset lines are active-low and not self-clearing. Writing '0' asserts reset and it remains asserted until explicitly deasserted by software. This driver previously treated the MIPI CSI reset signals as active-high, which led to incorrect reset assert/deassert sequencing. This issue was exposed by commit 6d79bb8fd2aa ("media: imx8mq-mipi-csi2: Explicitly release reset"). Fix this by reflecting the correct reset polarity and ensuring proper reset handling. Fixes: c979dbf59987 ("reset: imx7: Add support for i.MX8MQ IP block variant") Cc: stable@vger.kernel.org # 6d79bb8fd2aa: media: imx8mq-mipi-csi2: Explicitly release reset Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Robby Cai <robby.cai@nxp.com> Reviewed-by: Guoniu Zhou <guoniu.zhou@oss.nxp.com> Reviewed-by: Frank Li <Frank.Li@nxp.com> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Diffstat (limited to 'Documentation/tty/git@git.tavy.me:linux.git')
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