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[07/12] drm/msm: Disable interrupts during init

Message ID 1480361317-9937-8-git-send-email-jcrouse@codeaurora.org (mailing list archive)
State New, archived
Headers show

Commit Message

Jordan Crouse Nov. 28, 2016, 7:28 p.m. UTC 
Disable the interrupt during the init sequence to avoid having
interrupts fired for errors and other things that we are not
ready to handle while initializing.

Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
---
 drivers/gpu/drm/msm/adreno/adreno_device.c | 4 ++++
 drivers/gpu/drm/msm/adreno/adreno_gpu.c    | 3 +++
 2 files changed, 7 insertions(+)
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Patch

diff --git a/drivers/gpu/drm/msm/adreno/adreno_device.c b/drivers/gpu/drm/msm/adreno/adreno_device.c
index 5127b75..3321d33 100644
--- a/drivers/gpu/drm/msm/adreno/adreno_device.c
+++ b/drivers/gpu/drm/msm/adreno/adreno_device.c
@@ -148,12 +148,16 @@  struct msm_gpu *adreno_load_gpu(struct drm_device *dev)
 		mutex_lock(&dev->struct_mutex);
 		gpu->funcs->pm_resume(gpu);
 		mutex_unlock(&dev->struct_mutex);
+
+		disable_irq(gpu->irq);
+
 		ret = gpu->funcs->hw_init(gpu);
 		if (ret) {
 			dev_err(dev->dev, "gpu hw init failed: %d\n", ret);
 			gpu->funcs->destroy(gpu);
 			gpu = NULL;
 		} else {
+			enable_irq(gpu->irq);
 			/* give inactive pm a chance to kick in: */
 			msm_gpu_retire(gpu);
 		}
diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.c b/drivers/gpu/drm/msm/adreno/adreno_gpu.c
index 3f8c730..644be52 100644
--- a/drivers/gpu/drm/msm/adreno/adreno_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.c
@@ -129,11 +129,14 @@  void adreno_recover(struct msm_gpu *gpu)
 	adreno_gpu->memptrs->wptr  = 0;
 
 	gpu->funcs->pm_resume(gpu);
+
+	disable_irq(gpu->irq);
 	ret = gpu->funcs->hw_init(gpu);
 	if (ret) {
 		dev_err(dev->dev, "gpu hw init failed: %d\n", ret);
 		/* hmm, oh well? */
 	}
+	enable_irq(gpu->irq);
 }
 
 void adreno_submit(struct msm_gpu *gpu, struct msm_gem_submit *submit,