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SubjectRe: [PATCH v16 3/5] iommu/arm-smmu: Add the device_link between masters and smmu
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On 30/08/18 15:45, Vivek Gautam wrote:
> From: Sricharan R <sricharan@codeaurora.org>
>
> Finally add the device link between the master device and
> smmu, so that the smmu gets runtime enabled/disabled only when the
> master needs it. This is done from add_device callback which gets
> called once when the master is added to the smmu.

Reviewed-by: Robin Murphy <robin.murphy@arm.com>

> Signed-off-by: Sricharan R <sricharan@codeaurora.org>
> Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org>
> Reviewed-by: Tomasz Figa <tfiga@chromium.org>
> Tested-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
> ---
> drivers/iommu/arm-smmu.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
> index 1bf542010be7..166c8c6da24f 100644
> --- a/drivers/iommu/arm-smmu.c
> +++ b/drivers/iommu/arm-smmu.c
> @@ -1461,6 +1461,9 @@ static int arm_smmu_add_device(struct device *dev)
>
> iommu_device_link(&smmu->iommu, dev);
>
> + device_link_add(dev, smmu->dev,
> + DL_FLAG_PM_RUNTIME | DL_FLAG_AUTOREMOVE_SUPPLIER);
> +
> return 0;
>
> out_cfg_free:
>

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