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efa28efd9c
Supported media bus codes on the resizer sink pad are identical to the ISP source pad. The .enum_mbus_code() handler thus delegates the enumeration to the ISP's operation. This is problematic for two reasons: - Format enumeration on the ISP source pad is dependent on the format configured on the ISP sink pad for the same subdev state (TRY or ACTIVE), while format enumeration on the resizer sink pad should return all formats supported by the resizer subdev, regardless of the ISP configuration. - Delegating the operation involves creating a fake v4l2_subdev_state on the stack to pass to the ISP .enum_mbus_code() handler. This gets in the way of evolution of both the ISP enumeration handler and, more generally, the V4L2 subdev state infrastructure. Fix those two issues by implementing format enumeration manually for the resizer. Link: https://lore.kernel.org/r/20231126020948.2700-1-laurent.pinchart@ideasonboard.com Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org> |
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