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-rw-r--r--drivers/gpu/drm/arm/malidp_hw.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/gpu/drm/arm/malidp_hw.h b/drivers/gpu/drm/arm/malidp_hw.h
index 141743e..087e1202 100644
--- a/drivers/gpu/drm/arm/malidp_hw.h
+++ b/drivers/gpu/drm/arm/malidp_hw.h
@@ -88,6 +88,9 @@ struct malidp_hw_regmap {
/* list of supported input formats for each layer */
const struct malidp_input_format *input_formats;
const u8 n_input_formats;
+
+ /* pitch alignment requirement in bytes */
+ const u8 bus_align_bytes;
};
struct malidp_hw_device {
@@ -229,6 +232,12 @@ void malidp_se_irq_fini(struct drm_device *drm);
u8 malidp_hw_get_format_id(const struct malidp_hw_regmap *map,
u8 layer_id, u32 format);
+static inline bool malidp_hw_pitch_valid(struct malidp_hw_device *hwdev,
+ unsigned int pitch)
+{
+ return !(pitch & (hwdev->map.bus_align_bytes - 1));
+}
+
/*
* background color components are defined as 12bits values,
* they will be shifted right when stored on hardware that
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