Thread (34 messages) read the whole thread 34 messages, 5 authors, 2023-06-01

Re: [PATCH v5 13/17] drm/panel: khadas-ts050: update timings to achieve 60Hz refresh rate

From: Nicolas Belin <hidden>
Date: 2023-05-31 09:23:54
Also in: dri-devel, linux-amlogic, linux-clk, linux-devicetree, linux-phy, lkml

Le mar. 30 mai 2023 à 09:38, Neil Armstrong
[off-list ref] a écrit :
quoted hunk ↗ jump to hunk
This updates the panel timings to achieve a clean 60Hz refresh rate.

Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
---
 drivers/gpu/drm/panel/panel-khadas-ts050.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)
diff --git a/drivers/gpu/drm/panel/panel-khadas-ts050.c b/drivers/gpu/drm/panel/panel-khadas-ts050.c
index 1ab1ebe30882..b942a0162274 100644
--- a/drivers/gpu/drm/panel/panel-khadas-ts050.c
+++ b/drivers/gpu/drm/panel/panel-khadas-ts050.c
@@ -568,7 +568,7 @@ static const struct khadas_ts050_panel_cmd init_code[] = {
        {0xfb, 0x01},
        /* Select CMD1 */
        {0xff, 0x00},
-       {0xd3, 0x05}, /* RGBMIPICTRL: VSYNC back porch = 5 */
+       {0xd3, 0x22}, /* RGBMIPICTRL: VSYNC back porch = 34 */
        {0xd4, 0x04}, /* RGBMIPICTRL: VSYNC front porch = 4 */
 };
@@ -717,15 +717,15 @@ static int khadas_ts050_panel_disable(struct drm_panel *panel)
 }

 static const struct drm_display_mode default_mode = {
-       .clock = 120000,
-       .hdisplay = 1088,
-       .hsync_start = 1088 + 104,
-       .hsync_end = 1088 + 104 + 4,
-       .htotal = 1088 + 104 + 4 + 127,
+       .clock = 160000,
+       .hdisplay = 1080,
+       .hsync_start = 1080 + 117,
+       .hsync_end = 1080 + 117 + 5,
+       .htotal = 1080 + 117 + 5 + 160,
        .vdisplay = 1920,
        .vsync_start = 1920 + 4,
-       .vsync_end = 1920 + 4 + 2,
-       .vtotal = 1920 + 4 + 2 + 3,
+       .vsync_end = 1920 + 4 + 3,
+       .vtotal = 1920 + 4 + 3 + 31,
        .flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC,
 };


--
2.34.1
Reviewed-by: Nicolas Belin <redacted>
Tested-by: Nicolas Belin <redacted> # on Khadas VIM3 + TS050 Panel

Thanks,
Nicolas

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