MLK-18164: drm: imx: dcss: fix max upscale ratio

Currently, the maximum upscale ratio is 1:7. However, DCSS can support
upscale ratios up to 1:16, even though the RM states the maximum upscale
ratio is 1:8.

Signed-off-by: Laurentiu Palcu <laurentiu.palcu@nxp.com>
(cherry picked from commit 361a057ceec0676be069b2150ee533b7ad11227a)

diff --git a/drivers/gpu/imx/dcss/dcss-scaler.c b/drivers/gpu/imx/dcss/dcss-scaler.c
index 65fe041..94ec3d8 100644 (file)
--- a/drivers/gpu/imx/dcss/dcss-scaler.c
+++ b/drivers/gpu/imx/dcss/dcss-scaler.c
@@ -522,15 +522,15 @@ struct dcss_scaler_ratios {
 };
 
 static const struct dcss_scaler_ratios dcss_scaler_ratios[] = {
-       {max_downscale(3), max_upscale(5)},
-       {max_downscale(5), max_upscale(7)},
-       {max_downscale(5), max_upscale(7)},
+       {max_downscale(3), max_upscale(16)},
+       {max_downscale(5), max_upscale(16)},
+       {max_downscale(5), max_upscale(16)},
 };
 
 static const struct dcss_scaler_ratios dcss_scaler_wrscl_ratios[] = {
-       {max_downscale(5), max_upscale(5)},
-       {max_downscale(7), max_upscale(7)},
-       {max_downscale(7), max_upscale(7)},
+       {max_downscale(5), max_upscale(16)},
+       {max_downscale(7), max_upscale(16)},
+       {max_downscale(7), max_upscale(16)},
 };
 
 static bool dcss_scaler_fractions_set(struct dcss_soc *dcss, int ch_num,