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: Paul Kocialkowski <paul.kocialkowski@bootlin.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org> 2022-07-27media: sunxi: sun6i_mipi_csi2.c/sun8i_a83t_mipi_csi2.c: clarify error handlingHans Verkuil Both sun6i_mipi_csi2.c and sun8i_a83t_mipi_csi2.c have the same issue: the comment before the ret = 0 assignment is incorrect, drop it and always assign the result of the v4l2_subdev_call(..., 0) to ret. In the disable label check for !on and set ret to 0 in that case. This fixes two smatch warnings: drivers/media/platform/sunxi/sun6i-mipi-csi2/sun6i_mipi_csi2.c:193 sun6i_mipi_csi2_s_stream() warn: missing error code 'ret' drivers/media/platform/sunxi/sun8i-a83t-mipi-csi2/sun8i_a83t_mipi_csi2.c:225 sun8i_a83t_mipi_csi2_s_stream() warn: missing error code 'ret' Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org> 2022-07-08media: sunxi: Add support for the A31 MIPI CSI-2 controllerPaul Kocialkowski The A31 MIPI CSI-2 controller is a dedicated MIPI CSI-2 bridge found on Allwinner SoCs such as the A31 and V3/V3s. It is a standalone block, connected to the CSI controller on one side and to the MIPI D-PHY block on the other. It has a dedicated address space, interrupt line and clock. It is represented as a V4L2 subdev to the CSI controller and takes a MIPI CSI-2 sensor as its own subdev, all using the fwnode graph and media controller API. Only 8-bit and 10-bit Bayer formats are currently supported. While up to 4 internal channels to the CSI controller exist, only one is currently supported by this implementation. Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com> Acked-by: Maxime Ripard <mripard@kernel.org> Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>