From 0e2f46e98ff4ebd55346eccea5c98582ca535a46 Mon Sep 17 00:00:00 2001
From: Paul Cercueil <paul@crapouillou.net>
Date: Thu, 16 Jul 2020 14:56:47 +0200
Subject: drm/panel-simple: Add 50 Hz mode to the Frida FRD350H54004 panel
Git-commit: 795db2afd52d1bd9305e837007166039908d8553
Patch-mainline: v5.9-rc1
References: jsc#SLE-12680, jsc#SLE-12880, jsc#SLE-12882, jsc#SLE-12883, jsc#SLE-13496, jsc#SLE-15322
By changing the pixel clock and the length of the back porch, it is
possible to obtain a perfect 50 Hz refresh rate.
v2: Rebase on drm-misc-next
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200716125647.10964-2-paul@crapouillou.net
Signed-off-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/panel/panel-simple.c | 40 +++++++++++++++++++---------
1 file changed, 27 insertions(+), 13 deletions(-)
diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index 0acf63658f8a..cb6550d37e85 100644
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -1767,22 +1767,36 @@ static const struct panel_desc foxlink_fl500wvr00_a0t = {
.bus_format = MEDIA_BUS_FMT_RGB888_1X24,
};
-static const struct drm_display_mode frida_frd350h54004_mode = {
- .clock = 6000,
- .hdisplay = 320,
- .hsync_start = 320 + 44,
- .hsync_end = 320 + 44 + 16,
- .htotal = 320 + 44 + 16 + 20,
- .vdisplay = 240,
- .vsync_start = 240 + 2,
- .vsync_end = 240 + 2 + 6,
- .vtotal = 240 + 2 + 6 + 2,
- .flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC,
+static const struct drm_display_mode frida_frd350h54004_modes[] = {
+ { /* 60 Hz */
+ .clock = 6000,
+ .hdisplay = 320,
+ .hsync_start = 320 + 44,
+ .hsync_end = 320 + 44 + 16,
+ .htotal = 320 + 44 + 16 + 20,
+ .vdisplay = 240,
+ .vsync_start = 240 + 2,
+ .vsync_end = 240 + 2 + 6,
+ .vtotal = 240 + 2 + 6 + 2,
+ .flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC,
+ },
+ { /* 50 Hz */
+ .clock = 5400,
+ .hdisplay = 320,
+ .hsync_start = 320 + 56,
+ .hsync_end = 320 + 56 + 16,
+ .htotal = 320 + 56 + 16 + 40,
+ .vdisplay = 240,
+ .vsync_start = 240 + 2,
+ .vsync_end = 240 + 2 + 6,
+ .vtotal = 240 + 2 + 6 + 2,
+ .flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC,
+ },
};
static const struct panel_desc frida_frd350h54004 = {
- .modes = &frida_frd350h54004_mode,
- .num_modes = 1,
+ .modes = frida_frd350h54004_modes,
+ .num_modes = ARRAY_SIZE(frida_frd350h54004_modes),
.bpc = 8,
.size = {
.width = 77,
--
2.29.2