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Commit 8e2aa1ab authored by Patrick Daly's avatar Patrick Daly
Browse files

iommu: arm-smmu: reverse order of bus/gdsc enable 



Switch the order of gdsc enable and bus bandwidth voting. This is required
by the new hw clock/regulator resource manager on sdm845.

Change-Id: Ic47a953e01f01b57227497f61b76cd1ebc838278
Signed-off-by: default avatarPatrick Daly <pdaly@codeaurora.org>
parent 86396beb

drivers/iommu/arm-smmu.c

+7 −7
Original line number Diff line number Diff line
@@ -828,26 +828,26 @@ static int arm_smmu_power_on_slow(struct arm_smmu_power_resources *pwr) 
		return 0;

	}



	ret = regulator_bulk_enable(pwr->num_gdscs, pwr->gdscs);

	ret = arm_smmu_request_bus(pwr);

	if (ret)

		goto out_unlock;



	ret = arm_smmu_request_bus(pwr);

	ret = regulator_bulk_enable(pwr->num_gdscs, pwr->gdscs);

	if (ret)

		goto out_disable_regulators;

		goto out_disable_bus;



	ret = arm_smmu_prepare_clocks(pwr);

	if (ret)

		goto out_disable_bus;

		goto out_disable_regulators;



	pwr->power_count = 1;

	mutex_unlock(&pwr->power_lock);

	return 0;



out_disable_bus:

	arm_smmu_unrequest_bus(pwr);

out_disable_regulators:

	regulator_bulk_disable(pwr->num_gdscs, pwr->gdscs);

out_disable_bus:

	arm_smmu_unrequest_bus(pwr);

out_unlock:

	mutex_unlock(&pwr->power_lock);

	return ret;
@@ -868,8 +868,8 @@ static void arm_smmu_power_off_slow(struct arm_smmu_power_resources *pwr) 
	}



	arm_smmu_unprepare_clocks(pwr);

	arm_smmu_unrequest_bus(pwr);

	regulator_bulk_disable(pwr->num_gdscs, pwr->gdscs);

	arm_smmu_unrequest_bus(pwr);

	pwr->power_count = 0;

	mutex_unlock(&pwr->power_lock);

}