Commit a6093ad7 authored Jan 31, 2019 by Leonard Crestez Committed by Bjorn Helgaas Jan 31, 2019

PCI: imx: Fix probe failure without power domain



On chips without a separate power domain for PCI (such as 6q/6qp) the
imx6_pcie_attach_pd() function incorrectly returns an error.

Fix by returning 0 if dev_pm_domain_attach_by_name() does not find
anything.

Fixes: 3f7cceea ("PCI: imx: Add multi-pd support")
Reported-by: Lukas F.Hartmann <lukas@mntmn.com>
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
[lorenzo.pieralisi@arm.com: updated commit log]
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>

parent d2fd6e81

drivers/pci/controller/dwc/pci-imx6.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -310,6 +310,9 @@ static int imx6_pcie_attach_pd(struct device *dev)
		imx6_pcie->pd_pcie = dev_pm_domain_attach_by_name(dev, "pcie");
		if (IS_ERR(imx6_pcie->pd_pcie))
		return PTR_ERR(imx6_pcie->pd_pcie);
		/* Do nothing when power domain missing */
		if (!imx6_pcie->pd_pcie)
		return 0;
		link = device_link_add(dev, imx6_pcie->pd_pcie,
		DL_FLAG_STATELESS \|
		DL_FLAG_PM_RUNTIME \|

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