Call drm_mode_size_dumb() to compute dumb-buffer scanline pitch and
buffer size. Align the pitch according to hardware requirements.
v5:
- include dumb-buffers header for drm_mode_size_dumb() (kernel test robot)
Signed-off-by: Thomas Zimmermann <tzimmerm...@suse.de>
Cc: Biju Das <biju.das...@bp.renesas.com>
---
drivers/gpu/drm/renesas/rz-du/rzg2l_du_kms.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/renesas/rz-du/rzg2l_du_kms.c
b/drivers/gpu/drm/renesas/rz-du/rzg2l_du_kms.c
index 55a97691e9b2..d446229bcfe7 100644
--- a/drivers/gpu/drm/renesas/rz-du/rzg2l_du_kms.c
+++ b/drivers/gpu/drm/renesas/rz-du/rzg2l_du_kms.c
@@ -11,6 +11,7 @@
#include <drm/drm_atomic_helper.h>
#include <drm/drm_crtc.h>
#include <drm/drm_device.h>
+#include <drm/drm_dumb_buffers.h>
#include <drm/drm_framebuffer.h>
#include <drm/drm_gem_dma_helper.h>
#include <drm/drm_gem_framebuffer_helper.h>
@@ -181,10 +182,11 @@ const struct rzg2l_du_format_info
*rzg2l_du_format_info(u32 fourcc)
int rzg2l_du_dumb_create(struct drm_file *file, struct drm_device *dev,
struct drm_mode_create_dumb *args)
{
- unsigned int min_pitch = DIV_ROUND_UP(args->width * args->bpp, 8);
- unsigned int align = 16 * args->bpp / 8;
+ int ret;
- args->pitch = roundup(min_pitch, align);
+ ret = drm_mode_size_dumb(dev, args, 16 * args->bpp / 8, 0);
+ if (ret)
+ return ret;
return drm_gem_dma_dumb_create_internal(file, dev, args);
}
--
2.49.0
