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drm/omap: Add pclk setting case when channel is DSS_WB

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In dispc_set_ovl_common() we need to initialize pclk to a valid
value when we use WB in capture mode (i.e. mem_2_mem is false).
Otherwise dispc_ovl_calc_scaling() fails.

Signed-off-by: Benoit Parrot <bparrot@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
This commit is contained in:
Benoit Parrot 2016-05-16 16:42:50 -05:00 committed by Tomi Valkeinen
parent b5d025eff5
commit 9deb5ad3c4
1 changed files with 4 additions and 0 deletions
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4
drivers/gpu/drm/omapdrm/dss/dispc.c
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@ -2590,6 +2590,10 @@ static int dispc_ovl_setup_common(struct dispc_device *dispc,
unsigned long pclk = dispc_plane_pclk_rate(dispc, plane);
unsigned long lclk = dispc_plane_lclk_rate(dispc, plane);
/* when setting up WB, dispc_plane_pclk_rate() returns 0 */
if (plane == OMAP_DSS_WB)
pclk = vm->pixelclock;
if (paddr == 0 && rotation_type != OMAP_DSS_ROT_TILER)
return -EINVAL;