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drm/panel-simple: Add 50 Hz mode to the Frida FRD350H54004 panel

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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
This commit is contained in:
Paul Cercueil 2020-07-16 14:56:47 +02:00 committed by Sam Ravnborg
parent bad20a2dbf
commit 795db2afd5
1 changed files with 27 additions and 13 deletions
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40
drivers/gpu/drm/panel/panel-simple.c
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@ -1753,22 +1753,36 @@ 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,