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author | Lothar Waßmann <LW@KARO-electronics.de> | 2016-07-12 15:30:02 +0200 |
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committer | Philipp Zabel <p.zabel@pengutronix.de> | 2016-08-08 11:44:20 +0200 |
commit | d72daa0d75e8fe71368113350254b9da2c64b235 (patch) | |
tree | 5a47353d2217b38e099624bd954bf919c2f1ee40 | |
parent | 29b4817d4018df78086157ea3a55c1d9424a7cfc (diff) | |
download | linux-stable-d72daa0d75e8fe71368113350254b9da2c64b235.tar.gz linux-stable-d72daa0d75e8fe71368113350254b9da2c64b235.tar.bz2 linux-stable-d72daa0d75e8fe71368113350254b9da2c64b235.zip |
drm: add a helper function to extract 'de-active' and 'pixelclk-active' from DT
add a helper function to extract information about pixel clock and DE
polarity from DT for use by of_get_drm_display_mode().
While at it, convert spaces to tabs in indentation in drm_modes.h.
Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
-rw-r--r-- | drivers/gpu/drm/drm_modes.c | 15 | ||||
-rw-r--r-- | include/drm/drm_modes.h | 3 |
2 files changed, 17 insertions, 1 deletions
diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c index fc5040ae5f25..51804e5c58b9 100644 --- a/drivers/gpu/drm/drm_modes.c +++ b/drivers/gpu/drm/drm_modes.c @@ -657,6 +657,21 @@ void drm_display_mode_to_videomode(const struct drm_display_mode *dmode, } EXPORT_SYMBOL_GPL(drm_display_mode_to_videomode); +void drm_bus_flags_from_videomode(const struct videomode *vm, u32 *bus_flags) +{ + *bus_flags = 0; + if (vm->flags & DISPLAY_FLAGS_PIXDATA_POSEDGE) + *bus_flags |= DRM_BUS_FLAG_PIXDATA_POSEDGE; + if (vm->flags & DISPLAY_FLAGS_PIXDATA_NEGEDGE) + *bus_flags |= DRM_BUS_FLAG_PIXDATA_NEGEDGE; + + if (vm->flags & DISPLAY_FLAGS_DE_LOW) + *bus_flags |= DRM_BUS_FLAG_DE_LOW; + if (vm->flags & DISPLAY_FLAGS_DE_HIGH) + *bus_flags |= DRM_BUS_FLAG_DE_HIGH; +} +EXPORT_SYMBOL_GPL(drm_bus_flags_from_videomode); + #ifdef CONFIG_OF /** * of_get_drm_display_mode - get a drm_display_mode from devicetree diff --git a/include/drm/drm_modes.h b/include/drm/drm_modes.h index ff481770d76b..a8164d2336e6 100644 --- a/include/drm/drm_modes.h +++ b/include/drm/drm_modes.h @@ -434,7 +434,7 @@ struct drm_cmdline_mode; struct drm_display_mode *drm_mode_create(struct drm_device *dev); void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode); void drm_mode_convert_to_umode(struct drm_mode_modeinfo *out, - const struct drm_display_mode *in); + const struct drm_display_mode *in); int drm_mode_convert_umode(struct drm_display_mode *out, const struct drm_mode_modeinfo *in); void drm_mode_probed_add(struct drm_connector *connector, struct drm_display_mode *mode); @@ -457,6 +457,7 @@ void drm_display_mode_from_videomode(const struct videomode *vm, struct drm_display_mode *dmode); void drm_display_mode_to_videomode(const struct drm_display_mode *dmode, struct videomode *vm); +void drm_bus_flags_from_videomode(const struct videomode *vm, u32 *bus_flags); int of_get_drm_display_mode(struct device_node *np, struct drm_display_mode *dmode, int index); |