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Commit 9c049bea authored by Keerthy's avatar Keerthy Committed by Bjorn Helgaas
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PCI: dra7xx: Add shutdown handler to cleanly turn off clocks 



Add shutdown handler to cleanly turn off clocks.  This will help in cases of
kexec where in a new kernel can boot abruptly.

Signed-off-by: default avatarKeerthy <j-keerthy@ti.com>
Signed-off-by: default avatarBjorn Helgaas <bhelgaas@google.com>
Acked-by: default avatarKishon Vijay Abraham I <kishon@ti.com>
parent 9e66317d

drivers/pci/dwc/pci-dra7xx.c

+17 −0
Original line number Diff line number Diff line
@@ -794,6 +794,22 @@ static int dra7xx_pcie_resume_noirq(struct device *dev) 
}

#endif



void dra7xx_pcie_shutdown(struct platform_device *pdev)

{

	struct device *dev = &pdev->dev;

	struct dra7xx_pcie *dra7xx = dev_get_drvdata(dev);

	int ret;



	dra7xx_pcie_stop_link(dra7xx->pci);



	ret = pm_runtime_put_sync(dev);

	if (ret < 0)

		dev_dbg(dev, "pm_runtime_put_sync failed\n");



	pm_runtime_disable(dev);

	dra7xx_pcie_disable_phy(dra7xx);

}



static const struct dev_pm_ops dra7xx_pcie_pm_ops = {

	SET_SYSTEM_SLEEP_PM_OPS(dra7xx_pcie_suspend, dra7xx_pcie_resume)

	SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(dra7xx_pcie_suspend_noirq,
@@ -807,5 +823,6 @@ static struct platform_driver dra7xx_pcie_driver = { 
		.suppress_bind_attrs = true,

		.pm	= &dra7xx_pcie_pm_ops,

	},

	.shutdown = dra7xx_pcie_shutdown,

};

builtin_platform_driver_probe(dra7xx_pcie_driver, dra7xx_pcie_probe);