drm/panel: simple: push blanking limit on RK32FN48H

Push horizontal front porch and vertical back porch blanking limit.
This allows to get a 60 fps sharp.

Signed-off-by: Raphael Gallais-Pou <raphael.gallais-pou@foss.st.com>
Reviewed-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20240205-ltdc_mp13-v1-5-116d43ebba75@foss.st.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240205-ltdc_mp13-v1-5-116d43ebba75@foss.st.com

diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index 200f422312b0a96835c3b22a097a5ad29b6d8d98..24c67e5d2d3336f17704a3852fea778f720fb946 100644 (file)
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -3543,10 +3543,10 @@ static const struct display_timing rocktech_rk043fn48h_timing = {
        .pixelclock = { 6000000, 9000000, 12000000 },
        .hactive = { 480, 480, 480 },
        .hback_porch = { 8, 43, 43 },
-       .hfront_porch = { 2, 8, 8 },
+       .hfront_porch = { 2, 8, 10 },
        .hsync_len = { 1, 1, 1 },
        .vactive = { 272, 272, 272 },
-       .vback_porch = { 2, 12, 12 },
+       .vback_porch = { 2, 12, 26 },
        .vfront_porch = { 1, 4, 4 },
        .vsync_len = { 1, 10, 10 },
        .flags = DISPLAY_FLAGS_VSYNC_LOW | DISPLAY_FLAGS_HSYNC_LOW |