commit 51feb4e36b137516b69efaaeeb120d51dab7e58b
author Lucille Sylvester <lsylvest@codeaurora.org> Thu Jul 26 18:58:33 2012 -0600
committer Lucille Sylvester <lsylvest@codeaurora.org> Thu Aug 02 14:57:07 2012 -0600
tree 8dce57c54278bef22b4a232d9a1ec70f8013bae8
parent 391b3d2217761cd0e3c312a943b81dd6a037dac3

msm: kgsl: No need to write registers on _stop

After a _stop, _start must be called to write the correct
values to these registers before the device can be used
again.  No reason to write an additional value on _stop.

Change-Id: If78bfd2ca81cce9d3320419c997a8d48af96fe13
Signed-off-by: Lucille Sylvester <lsylvest@codeaurora.org>

drivers/gpu/msm/adreno_ringbuffer.c

diff --git a/drivers/gpu/msm/adreno_ringbuffer.c b/drivers/gpu/msm/adreno_ringbuffer.c
index 86a349a..2a6e39b 100644
--- a/drivers/gpu/msm/adreno_ringbuffer.c
+++ b/drivers/gpu/msm/adreno_ringbuffer.c
@@ -404,11 +404,8 @@
 
 void adreno_ringbuffer_stop(struct adreno_ringbuffer *rb)
 {
-	if (rb->flags & KGSL_FLAGS_STARTED) {
-		/* ME_HALT */
-		adreno_regwrite(rb->device, REG_CP_ME_CNTL, 0x10000000);
+	if (rb->flags & KGSL_FLAGS_STARTED)
 		rb->flags &= ~KGSL_FLAGS_STARTED;
-	}
 }
 
 int adreno_ringbuffer_init(struct kgsl_device *device)

drivers/gpu/msm/kgsl_gpummu.c

diff --git a/drivers/gpu/msm/kgsl_gpummu.c b/drivers/gpu/msm/kgsl_gpummu.c
index edccff1..d8472f2 100644
--- a/drivers/gpu/msm/kgsl_gpummu.c
+++ b/drivers/gpu/msm/kgsl_gpummu.c
@@ -686,7 +686,6 @@
 
 static void kgsl_gpummu_stop(struct kgsl_mmu *mmu)
 {
-	kgsl_regwrite(mmu->device, MH_MMU_CONFIG, 0x00000000);
 	mmu->flags &= ~KGSL_FLAGS_STARTED;
 }
 

drivers/gpu/msm/kgsl_iommu.c

diff --git a/drivers/gpu/msm/kgsl_iommu.c b/drivers/gpu/msm/kgsl_iommu.c
index 016771b..e858651 100644
--- a/drivers/gpu/msm/kgsl_iommu.c
+++ b/drivers/gpu/msm/kgsl_iommu.c
@@ -880,7 +880,6 @@
 	 */
 
 	if (mmu->flags & KGSL_FLAGS_STARTED) {
-		kgsl_regwrite(mmu->device, MH_MMU_CONFIG, 0x00000000);
 		/* detach iommu attachment */
 		kgsl_detach_pagetable_iommu_domain(mmu);
 		mmu->hwpagetable = NULL;