From: Jeykumar Sankaran <jsanka@xxxxxxxxxxxxxx>
Identify slave-master encoders and program them explicitly.
changes in v2:
- none
Signed-off-by: Jeykumar Sankaran <jsanka@xxxxxxxxxxxxxx>
Signed-off-by: Sravanthi Kollukuduru <skolluku@xxxxxxxxxxxxxx>
---
drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 41 ++++++++++++++++-------------
1 file changed, 23 insertions(+), 18 deletions(-)
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
index 11a1045..e98cf70 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
@@ -184,6 +184,7 @@ struct dpu_encoder_virt {
unsigned int num_phys_encs;
struct dpu_encoder_phys *phys_encs[MAX_PHYS_ENCODERS_PER_VIRTUAL];
struct dpu_encoder_phys *cur_master;
+ struct dpu_encoder_phys *cur_slave;
struct dpu_hw_pingpong *hw_pp[MAX_CHANNELS_PER_ENC];
bool intfs_swapped;
@@ -1170,35 +1171,48 @@ void dpu_encoder_virt_restore(struct drm_encoder *drm_enc)
static void dpu_encoder_virt_enable(struct drm_encoder *drm_enc)
{
struct dpu_encoder_virt *dpu_enc = NULL;
+ struct dpu_encoder_phys *phys = NULL;
int i, ret = 0;
- struct drm_display_mode *cur_mode = NULL;
if (!drm_enc) {
DPU_ERROR("invalid encoder\n");
return;
}
dpu_enc = to_dpu_encoder_virt(drm_enc);
- cur_mode = &dpu_enc->base.crtc->state->adjusted_mode;
DPU_DEBUG_ENC(dpu_enc, "\n");
- DPU_EVT32(DRMID(drm_enc), cur_mode->hdisplay, cur_mode->vdisplay);
dpu_enc->cur_master = NULL;
+ dpu_enc->cur_slave = NULL;
for (i = 0; i < dpu_enc->num_phys_encs; i++) {
- struct dpu_encoder_phys *phys = dpu_enc->phys_encs[i];
+ phys = dpu_enc->phys_encs[i];
+
+ if (!phys || !phys->ops.is_master)
+ continue;
- if (phys && phys->ops.is_master && phys->ops.is_master(phys)) {
- DPU_DEBUG_ENC(dpu_enc, "master is now idx %d\n", i);
+ if (phys->ops.is_master(phys)) {
+ DPU_DEBUG_ENC(dpu_enc, "master is at idx %d\n", i);
dpu_enc->cur_master = phys;
- break;
+ } else {
+ DPU_DEBUG_ENC(dpu_enc, "slave is at idx %d\n", i);
+ dpu_enc->cur_slave = phys;
}
}
if (!dpu_enc->cur_master) {
- DPU_ERROR("virt encoder has no master! num_phys %d\n", i);
+ DPU_ERROR("virt encoder has no master identified\n");
return;
}
+ /* always enable slave encoder before master */
+ phys = dpu_enc->cur_slave;
+ if (phys && phys->ops.enable)
+ phys->ops.enable(phys);
+
+ phys = dpu_enc->cur_master;
+ if (phys && phys->ops.enable)
+ phys->ops.enable(phys);
+
ret = dpu_encoder_resource_control(drm_enc, DPU_ENC_RC_EVENT_KICKOFF);
if (ret) {
DPU_ERROR_ENC(dpu_enc, "dpu resource control failed: %d\n",
@@ -1207,25 +1221,16 @@ static void dpu_encoder_virt_enable(struct drm_encoder *drm_enc)
}
for (i = 0; i < dpu_enc->num_phys_encs; i++) {
- struct dpu_encoder_phys *phys = dpu_enc->phys_encs[i];
-
+ phys = dpu_enc->phys_encs[i];
if (!phys)
continue;
- if (phys != dpu_enc->cur_master) {
- if (phys->ops.enable)
- phys->ops.enable(phys);
- }
-
if (dpu_enc->misr_enable && (dpu_enc->disp_info.capabilities &
MSM_DISPLAY_CAP_VID_MODE) && phys->ops.setup_misr)
phys->ops.setup_misr(phys, true,
dpu_enc->misr_frame_count);
}
- if (dpu_enc->cur_master->ops.enable)
- dpu_enc->cur_master->ops.enable(dpu_enc->cur_master);
-
_dpu_encoder_virt_enable_helper(drm_enc);
}
--
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a Linux Foundation Collaborative Project
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