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>
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@ -657,6 +657,21 @@ void drm_display_mode_to_videomode(const struct drm_display_mode *dmode,
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}
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}
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EXPORT_SYMBOL_GPL(drm_display_mode_to_videomode);
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EXPORT_SYMBOL_GPL(drm_display_mode_to_videomode);
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void drm_bus_flags_from_videomode(const struct videomode *vm, u32 *bus_flags)
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{
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*bus_flags = 0;
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if (vm->flags & DISPLAY_FLAGS_PIXDATA_POSEDGE)
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*bus_flags |= DRM_BUS_FLAG_PIXDATA_POSEDGE;
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if (vm->flags & DISPLAY_FLAGS_PIXDATA_NEGEDGE)
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*bus_flags |= DRM_BUS_FLAG_PIXDATA_NEGEDGE;
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if (vm->flags & DISPLAY_FLAGS_DE_LOW)
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*bus_flags |= DRM_BUS_FLAG_DE_LOW;
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if (vm->flags & DISPLAY_FLAGS_DE_HIGH)
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*bus_flags |= DRM_BUS_FLAG_DE_HIGH;
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}
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EXPORT_SYMBOL_GPL(drm_bus_flags_from_videomode);
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#ifdef CONFIG_OF
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#ifdef CONFIG_OF
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/**
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/**
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* of_get_drm_display_mode - get a drm_display_mode from devicetree
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* of_get_drm_display_mode - get a drm_display_mode from devicetree
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@ -457,6 +457,7 @@ void drm_display_mode_from_videomode(const struct videomode *vm,
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struct drm_display_mode *dmode);
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struct drm_display_mode *dmode);
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void drm_display_mode_to_videomode(const struct drm_display_mode *dmode,
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void drm_display_mode_to_videomode(const struct drm_display_mode *dmode,
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struct videomode *vm);
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struct videomode *vm);
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void drm_bus_flags_from_videomode(const struct videomode *vm, u32 *bus_flags);
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int of_get_drm_display_mode(struct device_node *np,
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int of_get_drm_display_mode(struct device_node *np,
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struct drm_display_mode *dmode,
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struct drm_display_mode *dmode,
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int index);
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int index);
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