Re: [PATCH] drm/msm/mdp5: don't use autosuspend

From: Archit Taneja
Date: Fri Oct 20 2017 - 09:11:14 EST




On 10/20/2017 05:47 PM, Rob Clark wrote:
It's only likely to paper over bugs. Unlike the gpu, where we want to
keep things alive a bit longer in expectation of the next frame's
submit, when the display is shut down we can power off immediately.

Acked-by: Archit Taneja <architt@xxxxxxxxxxxxxx>


Signed-off-by: Rob Clark <robdclark@xxxxxxxxx>
---
drivers/gpu/drm/msm/mdp/mdp5/mdp5_cmd_encoder.c | 2 +-
drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c | 6 +++---
drivers/gpu/drm/msm/mdp/mdp5/mdp5_encoder.c | 2 +-
drivers/gpu/drm/msm/mdp/mdp5/mdp5_irq.c | 10 +++++-----
drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c | 6 +++---
5 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_cmd_encoder.c b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_cmd_encoder.c
index 60790df91bfa..1abc7f5c345c 100644
--- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_cmd_encoder.c
+++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_cmd_encoder.c
@@ -224,7 +224,7 @@ int mdp5_cmd_encoder_set_split_display(struct drm_encoder *encoder,
mdp5_write(mdp5_kms, REG_MDP5_SPLIT_DPL_LOWER,
MDP5_SPLIT_DPL_LOWER_SMART_PANEL);
mdp5_write(mdp5_kms, REG_MDP5_SPLIT_DPL_EN, 1);
- pm_runtime_put_autosuspend(dev);
+ pm_runtime_put_sync(dev);
return 0;
}
diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c
index 0b6ace26d622..6aa3a688d9a4 100644
--- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c
+++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c
@@ -429,7 +429,7 @@ static void mdp5_crtc_atomic_disable(struct drm_crtc *crtc,
mdp_irq_unregister(&mdp5_kms->base, &mdp5_crtc->pp_done);
mdp_irq_unregister(&mdp5_kms->base, &mdp5_crtc->err);
- pm_runtime_put_autosuspend(dev);
+ pm_runtime_put_sync(dev);
mdp5_crtc->enabled = false;
}
@@ -821,7 +821,7 @@ static int mdp5_crtc_cursor_set(struct drm_crtc *crtc,
crtc_flush(crtc, flush_mask);
end:
- pm_runtime_put_autosuspend(&pdev->dev);
+ pm_runtime_put_sync(&pdev->dev);
if (old_bo) {
drm_flip_work_queue(&mdp5_crtc->unref_cursor_work, old_bo);
/* enable vblank to complete cursor work: */
@@ -867,7 +867,7 @@ static int mdp5_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
crtc_flush(crtc, flush_mask);
- pm_runtime_put_autosuspend(&mdp5_kms->pdev->dev);
+ pm_runtime_put_sync(&mdp5_kms->pdev->dev);
return 0;
}
diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_encoder.c b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_encoder.c
index 5b851380d3f2..36ad3cbe5f79 100644
--- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_encoder.c
+++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_encoder.c
@@ -384,7 +384,7 @@ int mdp5_vid_encoder_set_split_display(struct drm_encoder *encoder,
mdp5_ctl_pair(mdp5_encoder->ctl, mdp5_slave_enc->ctl, true);
- pm_runtime_put_autosuspend(dev);
+ pm_runtime_put_sync(dev);
return 0;
}
diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_irq.c b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_irq.c
index bb5deb00c899..280e368bc9bb 100644
--- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_irq.c
+++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_irq.c
@@ -54,7 +54,7 @@ void mdp5_irq_preinstall(struct msm_kms *kms)
pm_runtime_get_sync(dev);
mdp5_write(mdp5_kms, REG_MDP5_INTR_CLEAR, 0xffffffff);
mdp5_write(mdp5_kms, REG_MDP5_INTR_EN, 0x00000000);
- pm_runtime_put_autosuspend(dev);
+ pm_runtime_put_sync(dev);
}
int mdp5_irq_postinstall(struct msm_kms *kms)
@@ -72,7 +72,7 @@ int mdp5_irq_postinstall(struct msm_kms *kms)
pm_runtime_get_sync(dev);
mdp_irq_register(mdp_kms, error_handler);
- pm_runtime_put_autosuspend(dev);
+ pm_runtime_put_sync(dev);
return 0;
}
@@ -84,7 +84,7 @@ void mdp5_irq_uninstall(struct msm_kms *kms)
pm_runtime_get_sync(dev);
mdp5_write(mdp5_kms, REG_MDP5_INTR_EN, 0x00000000);
- pm_runtime_put_autosuspend(dev);
+ pm_runtime_put_sync(dev);
}
irqreturn_t mdp5_irq(struct msm_kms *kms)
@@ -119,7 +119,7 @@ int mdp5_enable_vblank(struct msm_kms *kms, struct drm_crtc *crtc)
pm_runtime_get_sync(dev);
mdp_update_vblank_mask(to_mdp_kms(kms),
mdp5_crtc_vblank(crtc), true);
- pm_runtime_put_autosuspend(dev);
+ pm_runtime_put_sync(dev);
return 0;
}
@@ -132,5 +132,5 @@ void mdp5_disable_vblank(struct msm_kms *kms, struct drm_crtc *crtc)
pm_runtime_get_sync(dev);
mdp_update_vblank_mask(to_mdp_kms(kms),
mdp5_crtc_vblank(crtc), false);
- pm_runtime_put_autosuspend(dev);
+ pm_runtime_put_sync(dev);
}
diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c
index c664eb1d47dc..ca8f20206b6c 100644
--- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c
+++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c
@@ -125,7 +125,7 @@ static void mdp5_complete_commit(struct msm_kms *kms, struct drm_atomic_state *s
if (mdp5_kms->smp)
mdp5_smp_complete_commit(mdp5_kms->smp, &mdp5_kms->state->smp);
- pm_runtime_put_autosuspend(dev);
+ pm_runtime_put_sync(dev);
}
static void mdp5_wait_for_crtc_commit_done(struct msm_kms *kms,
@@ -496,7 +496,7 @@ static void read_mdp_hw_revision(struct mdp5_kms *mdp5_kms,
pm_runtime_get_sync(dev);
version = mdp5_read(mdp5_kms, REG_MDP5_HW_VERSION);
- pm_runtime_put_autosuspend(dev);
+ pm_runtime_put_sync(dev);
*major = FIELD(version, MDP5_HW_VERSION_MAJOR);
*minor = FIELD(version, MDP5_HW_VERSION_MINOR);
@@ -683,7 +683,7 @@ struct msm_kms *mdp5_kms_init(struct drm_device *dev)
aspace = NULL;;
}
- pm_runtime_put_autosuspend(&pdev->dev);
+ pm_runtime_put_sync(&pdev->dev);
ret = modeset_init(mdp5_kms);
if (ret) {


--
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project