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drm/omap: fix WBDELAYCOUNT for HDMI

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For HDMI, WBDELAYCOUNT starts counting at the start of vsync, not at the
start of vfp.

This patch adjusts the wbdelay for HDMI accordingly.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
This commit is contained in:
Tomi Valkeinen 2016-06-03 13:29:59 +03:00
parent 9f7853ae75
commit 46a9304185
1 changed files with 6 additions and 2 deletions
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8
drivers/gpu/drm/omapdrm/dss/dispc.c
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@ -2816,8 +2816,12 @@ int dispc_wb_setup(struct dispc_device *dispc,
} else {
int wbdelay;
wbdelay = min(vm->vfront_porch +
vm->vsync_len + vm->vback_porch, (u32)255);
if (channel_in == DSS_WB_TV_MGR)
wbdelay = min(vm->vsync_len + vm->vback_porch,
(u32)255);
else
wbdelay = min(vm->vfront_porch +
vm->vsync_len + vm->vback_porch, (u32)255);
/* WBDELAYCOUNT */
REG_FLD_MOD(dispc, DISPC_OVL_ATTRIBUTES2(plane), wbdelay, 7, 0);