Identify slave-master encoders during initialization and enable
the encoders explicitly as the current logic has redundant and
ambiguous loops.
changes in v4:
- identify master/slave encoder while adding
adding physical encoders(Sean)
changes in v5:
- get rid of temporary variable for phys enc(Sean)
changes in v6:
- none
Signed-off-by: Jeykumar Sankaran <jsa...@codeaurora.org>
Reviewed-by: Sean Paul <seanp...@chromium.org>
---
drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 43 ++++++++---------------------
1 file changed, 12 insertions(+), 31 deletions(-)
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
index 991b22c..a8bbe81 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
@@ -180,6 +180,7 @@ 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;
@@ -1141,7 +1142,7 @@ 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;
- int i, ret = 0;
+ int ret = 0;
struct drm_display_mode *cur_mode = NULL;
if (!drm_enc) {
@@ -1154,21 +1155,12 @@ static void dpu_encoder_virt_enable(struct drm_encoder
*drm_enc)
trace_dpu_enc_enable(DRMID(drm_enc), cur_mode->hdisplay,
cur_mode->vdisplay);
- dpu_enc->cur_master = NULL;
- for (i = 0; i < dpu_enc->num_phys_encs; i++) {
- struct dpu_encoder_phys *phys = dpu_enc->phys_encs[i];
-
- if (phys && phys->ops.is_master && phys->ops.is_master(phys)) {
- DPU_DEBUG_ENC(dpu_enc, "master is now idx %d\n", i);
- dpu_enc->cur_master = phys;
- break;
- }
- }
+ /* always enable slave encoder before master */
+ if (dpu_enc->cur_slave && dpu_enc->cur_slave->ops.enable)
+ dpu_enc->cur_slave->ops.enable(dpu_enc->cur_slave);
- if (!dpu_enc->cur_master) {
- DPU_ERROR("virt encoder has no master! num_phys %d\n", i);
- return;
- }
+ if (dpu_enc->cur_master && dpu_enc->cur_master->ops.enable)
+ dpu_enc->cur_master->ops.enable(dpu_enc->cur_master);
ret = dpu_encoder_resource_control(drm_enc, DPU_ENC_RC_EVENT_KICKOFF);
if (ret) {
@@ -1177,21 +1169,6 @@ static void dpu_encoder_virt_enable(struct drm_encoder
*drm_enc)
return;
}
- for (i = 0; i < dpu_enc->num_phys_encs; i++) {
- struct dpu_encoder_phys *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->cur_master->ops.enable)
- dpu_enc->cur_master->ops.enable(dpu_enc->cur_master);
-
_dpu_encoder_virt_enable_helper(drm_enc);
}
@@ -2062,6 +2039,11 @@ static int dpu_encoder_virt_add_phys_encs(
++dpu_enc->num_phys_encs;
}
+ if (params->split_role == ENC_ROLE_SLAVE)
+ dpu_enc->cur_slave = enc;
+ else
+ dpu_enc->cur_master = enc;
+
return 0;
}
@@ -2228,7 +2210,6 @@ int dpu_encoder_setup(struct drm_device *dev, struct
drm_encoder *enc,
if (ret)
goto fail;
- dpu_enc->cur_master = NULL;
spin_lock_init(&dpu_enc->enc_spinlock);
atomic_set(&dpu_enc->frame_done_timeout, 0);
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project
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