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| author |   Vincent Abriou <vincent.abriou@st.com> | 2017-02-02 09:49:02 +0100 |
|---|---|---|
| committer | Vincent Abriou <vincent.abriou@st.com> | 2017-02-10 09:34:39 +0100 |
| commit | c5649ee49761f5367c46c5ae6579ab8e8b03575d (patch) | |
| tree | 6bf45a1847cb24c9720e14565b6c59605cd8ec77 /drivers/gpu/drm/sti/sti_gdp.c | |
| parent | drm/sti: enable gdp pixel clock in atomic_update (diff) | |
| download | linux-dev-c5649ee49761f5367c46c5ae6579ab8e8b03575d.tar.xz linux-dev-c5649ee49761f5367c46c5ae6579ab8e8b03575d.zip | |
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>
Diffstat (limited to 'drivers/gpu/drm/sti/sti_gdp.c')
| -rw-r--r-- | drivers/gpu/drm/sti/sti_gdp.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/sti/sti_gdp.c b/drivers/gpu/drm/sti/sti_gdp.c index 7255234670c0..7f6d0790cca6 100644 --- a/drivers/gpu/drm/sti/sti_gdp.c +++ b/drivers/gpu/drm/sti/sti_gdp.c @@ -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; |