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authorStefan Agner <stefan@agner.ch>2015-11-17 19:10:29 -0800
committerStefan Agner <stefan@agner.ch>2016-02-25 16:13:16 -0800
commit4bc390c6337b6c73e0b44895e0ade7212f2815bf (patch)
treeee75b7bc82b570f8dba95791873f60b2a8cfd794 /drivers/gpu/drm/panel
parent69855819c7683c88e7f136f98b790392ebf9fe88 (diff)
drm/fsl-dcu: use mode flags for hsync/vsync polarity
The current default configuration is as follows: - Invert VSYNC signal (active LOW) - Invert HSYNC signal (active LOW) The mode flags allow to specify the required polarity per mode. Furthermore, none of the current driver settings is actually a standard polarity. This patch applies the current driver default polarities as explicit flags to the display which has been introduced with the driver (NEC WQVGA "nec,nl4827hc19-05b"). The driver now also parses the flags field and applies the configuration accordingly, by using the following values as standard polarities: (e.g. when no flags are specified): - VSYNC signal not inverted (active HIGH) - HSYNC signal not inverted (active HIGH) Acked-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Stefan Agner <stefan@agner.ch>
Diffstat (limited to 'drivers/gpu/drm/panel')
-rw-r--r--drivers/gpu/drm/panel/panel-simple.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index f88a631c43ab..2164c999052c 100644
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -1016,6 +1016,7 @@ static const struct drm_display_mode nec_nl4827hc19_05b_mode = {
.vsync_end = 272 + 2 + 4,
.vtotal = 272 + 2 + 4 + 2,
.vrefresh = 74,
+ .flags = DRM_MODE_FLAG_NVSYNC | DRM_MODE_FLAG_NHSYNC,
};
static const struct panel_desc nec_nl4827hc19_05b = {