[PATCH v4 11/13] drm/panel: khadas-ts050: update timings to achieve 60Hz refresh rate

Neil Armstrong
2023-05-12T13:40:15Z

This updates the panel timings to achieve a clean 60Hz refresh rate.

Link: https://lore.kernel.org/r/20221025-ts050-timings-v1-1-5c824bbb24d9@linaro.org
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