From 16b4511d836c7228cd0f59e5b43d52c9d9bcc68f Mon Sep 17 00:00:00 2001 From: Paul Cercueil Date: Wed, 8 Apr 2020 11:58:30 +0200 Subject: [PATCH] drm/panel: nt39016: Add support for 50 Hz refresh rate By changing the pixel clock and the length of the back porch, it is possible to obtain a perfect 50 Hz refresh rate. Signed-off-by: Paul Cercueil Link: https://patchwork.freedesktop.org/patch/msgid/20200408095830.8131-2-paul@crapouillou.net Acked-by: Sam Ravnborg --- drivers/gpu/drm/panel/panel-novatek-nt39016.c | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/panel/panel-novatek-nt39016.c b/drivers/gpu/drm/panel/panel-novatek-nt39016.c index f1286cf..05cae8d 100644 --- a/drivers/gpu/drm/panel/panel-novatek-nt39016.c +++ b/drivers/gpu/drm/panel/panel-novatek-nt39016.c @@ -325,7 +325,7 @@ static int nt39016_remove(struct spi_device *spi) } static const struct drm_display_mode kd035g6_display_modes[] = { - { + { /* 60 Hz */ .clock = 6000, .hdisplay = 320, .hsync_start = 320 + 10, @@ -338,6 +338,19 @@ static const struct drm_display_mode kd035g6_display_modes[] = { .vrefresh = 60, .flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC, }, + { /* 50 Hz */ + .clock = 5400, + .hdisplay = 320, + .hsync_start = 320 + 42, + .hsync_end = 320 + 42 + 50, + .htotal = 320 + 42 + 50 + 20, + .vdisplay = 240, + .vsync_start = 240 + 5, + .vsync_end = 240 + 5 + 1, + .vtotal = 240 + 5 + 1 + 4, + .vrefresh = 50, + .flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC, + }, }; static const struct nt39016_panel_info kd035g6_info = { -- 2.7.4