From: Jordan Crouse <jcrouse@codeaurora.org>
Date: Mon, 28 Nov 2016 19:28:32 +0000 (-0700)
Subject: drm/msm: Disable interrupts during init
X-Git-Tag: v4.10-rc1~154^2~19^2~2
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=4ac277cd9dd0d796bbd647bbc6d9d0bfe2b1c015;p=karo-tx-linux.git

drm/msm: Disable interrupts during init

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>
Signed-off-by: Rob Clark <robdclark@gmail.com>
---

diff --git a/drivers/gpu/drm/msm/adreno/adreno_device.c b/drivers/gpu/drm/msm/adreno/adreno_device.c
index 7250ffc6322f..1fa1fdda9ee2 100644
--- a/drivers/gpu/drm/msm/adreno/adreno_device.c
+++ b/drivers/gpu/drm/msm/adreno/adreno_device.c
@@ -145,12 +145,16 @@ 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 6684ba8fa9be..c3a4c53eb8b3 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,