On 9/28/22 02:58, Laurent Pinchart wrote:
Up to and including v1.3, HDMI supported limited quantization range only for YCbCr. HDMI v1.4 introduced selectable quantization ranges, but this features isn't supported in the dw-hdmi driver that is used in conjunction with the LCDIF in the i.MX8MP. The HDMI YCbCr output is thus always advertised in the AVI infoframe as limited range.The LCDIF driver, on the other hand, configures the CSC to produce full range YCbCr. This mismatch results in loss of details and incorrect colours. Fix it by switching to limited range YCbCr. The coefficients are copied from drivers/media/platforms/nxp/imx-pxp.c for coherency, as the hardware is most likely identical. Fixes: 9db35bb349a0 ("drm: lcdif: Add support for i.MX8MP LCDIF variant") Signed-off-by: Laurent Pinchart <laurent.pinch...@ideasonboard.com>
Reviewed-by: Marek Vasut <ma...@denx.de>
