Commit c5649ee4 authored Feb 02, 2017 by Vincent Abriou

drm/sti: do not set gdp pixel clock rate if mode is not set



Fix a division by 0 case : in some cases, when the GDP plane is being
disabled atomic_check() is called with "mode->clock = 0".
In that case, do not set parent and pixel clock rate.

Signed-off-by: Vincent Abriou <vincent.abriou@st.com>

parent 1b7f1451

drivers/gpu/drm/sti/sti_gdp.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -648,7 +648,7 @@ static int sti_gdp_atomic_check(struct drm_plane *drm_plane,
		}

		/* Set gdp clock */
		if (gdp->clk_pix) {
		if (mode->clock && gdp->clk_pix) {
		struct clk *clkp;
		int rate = mode->clock * 1000;
		int res;