The only bits that should be preserved in decon_win_set_fmt() is WINCONx_ENWIN_F. All other bits depends on the selected pixel formats and are set by the mentioned function.

Signed-off-by: Marek Szyprowski m.szyprowski@samsung.com --- drivers/gpu/drm/exynos/exynos5433_drm_decon.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/exynos/exynos5433_drm_decon.c b/drivers/gpu/drm/exynos/exynos5433_drm_decon.c index 92d28b5b1077..e868773ea509 100644 --- a/drivers/gpu/drm/exynos/exynos5433_drm_decon.c +++ b/drivers/gpu/drm/exynos/exynos5433_drm_decon.c @@ -265,7 +265,7 @@ static void decon_win_set_pixfmt(struct decon_context *ctx, unsigned int win, unsigned long val;

val = readl(ctx->addr + DECON_WINCONx(win)); - val &= ~WINCONx_BPPMODE_MASK; + val &= WINCONx_ENWIN_F;

switch (fb->format->format) { case DRM_FORMAT_XRGB1555: