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path: root/drivers/gpu/drm/drm_mipi_dbi.c
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Diffstat (limited to 'drivers/gpu/drm/drm_mipi_dbi.c')
-rw-r--r--drivers/gpu/drm/drm_mipi_dbi.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/gpu/drm/drm_mipi_dbi.c b/drivers/gpu/drm/drm_mipi_dbi.c
index 89e05a5bed1d..a4cd476f9b30 100644
--- a/drivers/gpu/drm/drm_mipi_dbi.c
+++ b/drivers/gpu/drm/drm_mipi_dbi.c
@@ -404,12 +404,16 @@ static void mipi_dbi_blank(struct mipi_dbi_dev *dbidev)
u16 height = drm->mode_config.min_height;
u16 width = drm->mode_config.min_width;
struct mipi_dbi *dbi = &dbidev->dbi;
- size_t len = width * height * 2;
+ const struct drm_format_info *dst_format;
+ size_t len;
int idx;
if (!drm_dev_enter(drm, &idx))
return;
+ dst_format = drm_format_info(dbidev->pixel_format);
+ len = drm_format_info_min_pitch(dst_format, 0, width) * height;
+
memset(dbidev->tx_buf, 0, len);
mipi_dbi_set_window_address(dbidev, 0, width - 1, 0, height - 1);