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authorLothar Waßmann <LW@KARO-electronics.de>2016-07-12 16:30:03 +0300
committerPhilipp Zabel <p.zabel@pengutronix.de>2016-08-08 12:44:20 +0300
commitfafc79ef2e9148d0085585b6b71bc7154c14ebb6 (patch)
treefc10a39232083944ec0727f71ac6c16a8e647fcd /drivers/gpu/drm/imx/imx-ldb.c
parentd72daa0d75e8fe71368113350254b9da2c64b235 (diff)
downloadlinux-fafc79ef2e9148d0085585b6b71bc7154c14ebb6.tar.xz
drm/imx: convey the pixelclk-active and de-active flags from DT to the ipu-di driver
The 'de-active' and 'pixelclk-active' DT properties are evaluated by of_parse_display_timing() called from of_get_drm_display_mode(), but later lost in the conversion from videomode.flags to drm_display_mode.flags. Enhance of_get_drm_display_mode() to also return the bus flags in a separate variable, so that they can be passed on to the ipu-di driver. Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Diffstat (limited to 'drivers/gpu/drm/imx/imx-ldb.c')
-rw-r--r--drivers/gpu/drm/imx/imx-ldb.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/gpu/drm/imx/imx-ldb.c b/drivers/gpu/drm/imx/imx-ldb.c
index b03919ed60ba..3ed2d5037fe2 100644
--- a/drivers/gpu/drm/imx/imx-ldb.c
+++ b/drivers/gpu/drm/imx/imx-ldb.c
@@ -66,6 +66,7 @@ struct imx_ldb_channel {
struct drm_display_mode mode;
int mode_valid;
u32 bus_format;
+ u32 bus_flags;
};
static inline struct imx_ldb_channel *con_to_imx_ldb_ch(struct drm_connector *c)
@@ -379,8 +380,13 @@ static int imx_ldb_encoder_atomic_check(struct drm_encoder *encoder,
u32 bus_format = imx_ldb_ch->bus_format;
/* Bus format description in DT overrides connector display info. */
- if (!bus_format && di->num_bus_formats)
+ if (!bus_format && di->num_bus_formats) {
bus_format = di->bus_formats[0];
+ imx_crtc_state->bus_flags = di->bus_flags;
+ } else {
+ bus_format = imx_ldb_ch->bus_format;
+ imx_crtc_state->bus_flags = imx_ldb_ch->bus_flags;
+ }
switch (bus_format) {
case MEDIA_BUS_FMT_RGB666_1X7X3_SPWG:
imx_crtc_state->bus_format = MEDIA_BUS_FMT_RGB666_1X18;
@@ -674,6 +680,7 @@ static int imx_ldb_bind(struct device *dev, struct device *master, void *data)
/* fallback to display-timings node */
ret = of_get_drm_display_mode(child,
&channel->mode,
+ &channel->bus_flags,
OF_USE_NATIVE_MODE);
if (!ret)
channel->mode_valid = 1;