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Commit b35dc209 authored by Hareesh Gundu's avatar Hareesh Gundu
Browse files

msm: kgsl: Wait for pending irqs completion in gmu suspend 



Ensure that adreno irqs are done in gmu suspend to avoid
race with gmu_suspend() and adreno_irq_handler(). This will
fix un-clocked register access in the adreno_irq_handler()
if it races with gmu suspend path.

Change-Id: Idd16defdd2a86b511c7dd13fc0c8704b29c7ee18
Signed-off-by: default avatarHareesh Gundu <hareeshg@codeaurora.org>
parent 29444f60

drivers/gpu/msm/kgsl_pwrctrl.c

+2 −0
Original line number Original line Diff line number Diff line
@@ -2840,6 +2840,7 @@ _aware(struct kgsl_device *device) 
	case KGSL_STATE_RESET:

	case KGSL_STATE_RESET:

		if (!gmu_core_gpmu_isenabled(device))

		if (!gmu_core_gpmu_isenabled(device))

			break;

			break;

		kgsl_pwrctrl_irq(device, KGSL_PWRFLAGS_OFF);

		status = gmu_core_start(device);

		status = gmu_core_start(device);

		break;

		break;

	case KGSL_STATE_INIT:

	case KGSL_STATE_INIT:
@@ -2904,6 +2905,7 @@ _aware(struct kgsl_device *device) 
				 * to make sure next attempt to wake up

				 * to make sure next attempt to wake up

				 * GMU/GPU is indeed a fresh start.

				 * GMU/GPU is indeed a fresh start.

				 */

				 */

				kgsl_pwrctrl_irq(device, KGSL_PWRFLAGS_OFF);

				gmu_core_suspend(device);

				gmu_core_suspend(device);

				kgsl_pwrctrl_set_state(device, state);

				kgsl_pwrctrl_set_state(device, state);

			} else {

			} else {