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drm/msm/mdp5: Enable 3D mux in mdp5_ctl 

3D mux is a small block placed after the DSPPs in MDP5. It can merge
2 LM/DSPP outputs and feed it to a single interface.

Enable 3D Mux if our mdp5_pipeline has 2 active LMs. This check
will need to be made more specific later when we add Dual DSI
support with source split enabled. In that use case, each LM feeds to a
separae INTF, so the 3D mux isn't needed.

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
This commit is contained in:
Archit Taneja 2017-03-23 15:58:17 +05:30 committed by Rob Clark
parent 0d1d3e4465
commit 3a88214379
1 changed files with 7 additions and 2 deletions
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9
drivers/gpu/drm/msm/mdp/mdp5/mdp5_ctl.c
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@ -138,9 +138,10 @@ static void set_display_intf(struct mdp5_kms *mdp5_kms,
spin_unlock_irqrestore(&mdp5_kms->resource_lock, flags);
}
static void set_ctl_op(struct mdp5_ctl *ctl, struct mdp5_interface *intf)
static void set_ctl_op(struct mdp5_ctl *ctl, struct mdp5_pipeline *pipeline)
{
unsigned long flags;
struct mdp5_interface *intf = pipeline->intf;
u32 ctl_op = 0;
if (!mdp5_cfg_intf_is_virtual(intf->type))
@ -161,6 +162,10 @@ static void set_ctl_op(struct mdp5_ctl *ctl, struct mdp5_interface *intf)
break;
}
if (pipeline->r_mixer)
ctl_op |= MDP5_CTL_OP_PACK_3D_ENABLE |
MDP5_CTL_OP_PACK_3D(1);
spin_lock_irqsave(&ctl->hw_lock, flags);
ctl_write(ctl, REG_MDP5_CTL_OP(ctl->id), ctl_op);
spin_unlock_irqrestore(&ctl->hw_lock, flags);
@ -183,7 +188,7 @@ int mdp5_ctl_set_pipeline(struct mdp5_ctl *ctl, struct mdp5_pipeline *pipeline)
if (!mdp5_cfg_intf_is_virtual(intf->type))
set_display_intf(mdp5_kms, intf);
set_ctl_op(ctl, intf);
set_ctl_op(ctl, pipeline);
return 0;
}