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Commit f2af78b7 authored by Hareesh Gundu's avatar Hareesh Gundu
Browse files

msm: kgsl: Save and restore the power ctrl_flags during recovery 



Power ctrl_flags will prevent the GPU power collapse when the
user has overwritten the force_rail_on, force_clk_on etc. This
will result into GPU wakeup problems in case power collapse
hasn’t happened during the hang recovery.

Change-Id: Ib1e86bbb70b2b71b8f8820692d13ce3ab6200db0
Signed-off-by: default avatarHareesh Gundu <hareeshg@codeaurora.org>
parent a16407c5

drivers/gpu/msm/adreno_a6xx.c

+6 −0
Original line number Diff line number Diff line
@@ -1166,6 +1166,10 @@ static int a6xx_reset(struct kgsl_device *device) 
{

	struct adreno_device *adreno_dev = ADRENO_DEVICE(device);

	int ret;

	unsigned long flags = device->pwrctrl.ctrl_flags;



	/* Clear ctrl_flags to ensure clocks and regulators are turned off */

	device->pwrctrl.ctrl_flags = 0;



	kgsl_pwrctrl_change_state(device, KGSL_STATE_INIT);
@@ -1178,6 +1182,8 @@ static int a6xx_reset(struct kgsl_device *device) 


	kgsl_pwrctrl_change_state(device, KGSL_STATE_ACTIVE);



	device->pwrctrl.ctrl_flags = flags;



	/* Toggle GX CPR on demand */

	 a6xx_gx_cpr_toggle(device);