drm: malidp: Add the size of the superblocks when calculating total

size for AFBC buffers

The size of the superblocks being added to the total AFBC buffer size
got lost in the upstreaming process. Add it back.
Reviewed-by: Ayan Kumar Halder <ayan.halder@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>

drivers/gpu/drm/arm/malidp_drv.c

@@ -38,6 +38,7 @@
 
 #define MALIDP_CONF_VALID_TIMEOUT	250
 #define AFBC_HEADER_SIZE		16
+#define AFBC_SUPERBLK_ALIGNMENT		128
 
 static void malidp_write_gamma_table(struct malidp_hw_device *hwdev,
 				     u32 data[MALIDP_COEFFTAB_NUM_COEFFS])
@@ -336,7 +337,8 @@ malidp_verify_afbc_framebuffer_size(struct drm_device *dev,
 	afbc_superblock_size = info->cpp[0] * afbc_superblock_width *
 		afbc_superblock_height;
 
-	afbc_size = ALIGN(n_superblocks * AFBC_HEADER_SIZE, 128);
+	afbc_size = ALIGN(n_superblocks * AFBC_HEADER_SIZE, AFBC_SUPERBLK_ALIGNMENT);
+	afbc_size += n_superblocks * ALIGN(afbc_superblock_size, AFBC_SUPERBLK_ALIGNMENT);
 
 	if (mode_cmd->width * info->cpp[0] != mode_cmd->pitches[0]) {
 		DRM_DEBUG_KMS("Invalid value of pitch (=%u) should be same as width (=%u) * cpp (=%u)\n",