3 files changed, 49 insertions, 0 deletions
diff --git a/drivers/gpu/drm/arm/display/include/malidp_io.h b/drivers/gpu/drm/arm/display/include/malidp_io.h
index 4fb3caf864ce..9440dff94212 100644
--- a/drivers/gpu/drm/arm/display/include/malidp_io.h
+++ b/drivers/gpu/drm/arm/display/include/malidp_io.h
@@ -22,6 +22,13 @@ malidp_write32(u32 __iomem *base, u32 offset, u32 v)
 }
 
 static inline void
+malidp_write64(u32 __iomem *base, u32 offset, u64 v)
+{
+	writel(lower_32_bits(v), (base + (offset >> 2)));
+	writel(upper_32_bits(v), (base + (offset >> 2) + 1));
+}
+
+static inline void
 malidp_write32_mask(u32 __iomem *base, u32 offset, u32 m, u32 v)
 {
 	u32 tmp = malidp_read32(base, offset);
diff --git a/drivers/gpu/drm/arm/display/include/malidp_product.h b/drivers/gpu/drm/arm/display/include/malidp_product.h
index b35fc5db866b..1053b11352eb 100644
--- a/drivers/gpu/drm/arm/display/include/malidp_product.h
+++ b/drivers/gpu/drm/arm/display/include/malidp_product.h
@@ -20,4 +20,16 @@
 /* Mali-display product IDs */
 #define MALIDP_D71_PRODUCT_ID   0x0071
 
+union komeda_config_id {
+	struct {
+		__u32	max_line_sz:16,
+			n_pipelines:2,
+			n_scalers:2, /* number of scalers per pipeline */
+			n_layers:3, /* number of layers per pipeline */
+			n_richs:3, /* number of rich layers per pipeline */
+			reserved_bits:6;
+	};
+	__u32 value;
+};
+
 #endif /* _MALIDP_PRODUCT_H_ */
diff --git a/drivers/gpu/drm/arm/display/include/malidp_utils.h b/drivers/gpu/drm/arm/display/include/malidp_utils.h
index 63cc47cefcf8..3bc383d5bf73 100644
--- a/drivers/gpu/drm/arm/display/include/malidp_utils.h
+++ b/drivers/gpu/drm/arm/display/include/malidp_utils.h
@@ -7,10 +7,40 @@
 #ifndef _MALIDP_UTILS_
 #define _MALIDP_UTILS_
 
+#include <linux/delay.h>
+#include <linux/errno.h>
+
 #define has_bit(nr, mask)	(BIT(nr) & (mask))
 #define has_bits(bits, mask)	(((bits) & (mask)) == (bits))
 
 #define dp_for_each_set_bit(bit, mask) \
 	for_each_set_bit((bit), ((unsigned long *)&(mask)), sizeof(mask) * 8)
 
+#define dp_wait_cond(__cond, __tries, __min_range, __max_range)	\
+({							\
+	int num_tries = __tries;			\
+	while (!__cond && (num_tries > 0)) {		\
+		usleep_range(__min_range, __max_range);	\
+		num_tries--;				\
+	}						\
+	(__cond) ? 0 : -ETIMEDOUT;			\
+})
+
+/* the restriction of range is [start, end] */
+struct malidp_range {
+	u32 start;
+	u32 end;
+};
+
+static inline void set_range(struct malidp_range *rg, u32 start, u32 end)
+{
+	rg->start = start;
+	rg->end   = end;
+}
+
+static inline bool in_range(struct malidp_range *rg, u32 v)
+{
+	return (v >= rg->start) && (v <= rg->end);
+}
+
 #endif /* _MALIDP_UTILS_ */