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drm/rockchip: vop2: Fix a setting of port mux value

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When there is no layer attach to a port, the por_mux
should set to zero.

Change-Id: I880c3ff4ce8cac8ee41bdc7e6666d13796357cc6
Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
This commit is contained in:
Andy Yan 2020-11-28 20:17:04 +08:00 committed by Tao Huang
parent 1b1a5b5a62
commit bff67105e4
1 changed files with 6 additions and 1 deletions
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7
drivers/gpu/drm/rockchip/rockchip_drm_vop2.c
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@ -3120,6 +3120,7 @@ static void vop2_setup_layer_mixer_for_vp(struct vop2_video_port *vp,
struct vop2_win *win;
struct vop2_layer *layer;
u8 used_layers = 0;
u8 port_mux;
u8 layer_id, win_phys_id;
int i;
@ -3140,7 +3141,11 @@ static void vop2_setup_layer_mixer_for_vp(struct vop2_video_port *vp,
* VP0 should change at VP1's commit.
*/
prev_vp = &vop2->vps[i];
VOP_MODULE_SET(vop2, prev_vp, port_mux, (used_layers - 1));
if (used_layers == 0)
port_mux = 8;
else
port_mux = used_layers - 1;
VOP_MODULE_SET(vop2, prev_vp, port_mux, port_mux);
}
/*