[PATCHv3/RFC 3/4] drm/komeda: Use afbc helper

[Andrzej Pietrasiewicz]

AFBC helpers are available. Use those which increase code readability.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p at collabora.com>
---
 .../drm/arm/display/komeda/komeda_framebuffer.c | 17 +++--------------
 1 file changed, 3 insertions(+), 14 deletions(-)

diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_framebuffer.c b/drivers/gpu/drm/arm/display/komeda/komeda_framebuffer.c
index 1b01a625f40e..f7edde3ac319 100644
--- a/drivers/gpu/drm/arm/display/komeda/komeda_framebuffer.c
+++ b/drivers/gpu/drm/arm/display/komeda/komeda_framebuffer.c
@@ -4,6 +4,7 @@
  * Author: James.Qian.Wang <james.qian.wang at arm.com>
  *
  */
+#include <drm/drm_afbc.h>
 #include <drm/drm_device.h>
 #include <drm/drm_fb_cma_helper.h>
 #include <drm/drm_gem.h>
@@ -52,20 +53,8 @@ komeda_fb_afbc_size_check(struct komeda_fb *kfb, struct drm_file *file,
 		return -ENOENT;
 	}
 
-	switch (fb->modifier & AFBC_FORMAT_MOD_BLOCK_SIZE_MASK) {
-	case AFBC_FORMAT_MOD_BLOCK_SIZE_32x8:
-		alignment_w = 32;
-		alignment_h = 8;
-		break;
-	case AFBC_FORMAT_MOD_BLOCK_SIZE_16x16:
-		alignment_w = 16;
-		alignment_h = 16;
-		break;
-	default:
-		WARN(1, "Invalid AFBC_FORMAT_MOD_BLOCK_SIZE: %lld.\n",
-		     fb->modifier & AFBC_FORMAT_MOD_BLOCK_SIZE_MASK);
-		break;
-	}
+	if (!drm_afbc_get_superblk_wh(fb->modifier, &alignment_w, &alignment_h))
+		return -EINVAL;
 
 	/* tiled header afbc */
 	if (fb->modifier & AFBC_FORMAT_MOD_TILED) {
-- 
2.17.1