[PATCHv2 27/31] drm/omap: verify that display x-res is divisible by 8

DISPC requires the x resolution to be divisible by 8 when stall mode is not used.

Add a check to the DPI driver to verify this.

Signed-off-by: Tomi Valkeinen tomi.valkeinen@ti.com --- drivers/gpu/drm/omapdrm/dss/dpi.c | 3 +++ 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/omapdrm/dss/dpi.c b/drivers/gpu/drm/omapdrm/dss/dpi.c index 7953e6a52346..557cf3bdcc4e 100644 --- a/drivers/gpu/drm/omapdrm/dss/dpi.c +++ b/drivers/gpu/drm/omapdrm/dss/dpi.c @@ -513,6 +513,9 @@ static int dpi_check_timings(struct omap_dss_device *dssdev, struct dpi_clk_calc_ctx ctx; bool ok;

+ if (timings->x_res % 8 != 0) + return -EINVAL; + if (mgr && !dispc_mgr_timings_ok(mgr->id, timings)) return -EINVAL;