Commit ac295a52 authored Jan 13, 2019 by Charan Teja Reddy

iommu: arm-smmu: return EPROBE_DEFER when bus scaling is not available

On some targets, rpm-adhoc driver is used instead of rpmh that uses
fs_initcall for driver registration. Since smmu driver uses
subsys_initcall, return EPROBE_DEFER when bus scaling is not available.

Change-Id: I53359a4f013ce251eb3e5ce6bd6cf0b2979f7e5f
Signed-off-by: Charan Teja Reddy <charante@codeaurora.org>

parent 4e6734d4

drivers/iommu/arm-smmu.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -4328,7 +4328,7 @@ static int arm_smmu_init_bus_scaling(struct arm_smmu_power_resources *pwr)
		pwr->bus_client = msm_bus_scale_register_client(pwr->bus_dt_data);
		if (!pwr->bus_client) {
		dev_err(dev, "Bus client registration failed\n");
		return -EINVAL;
		return -EPROBE_DEFER;
		}

		return 0;