diff options
| author | Alan Douglas <adouglas@cadence.com> | 2018-06-25 09:30:50 +0100 |
|---|---|---|
| committer | Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> | 2018-07-11 10:39:39 +0100 |
| commit | dfb80534692ddc5b97e1da4384f13dc0287fccb2 (patch) | |
| tree | 7d565642e9c5fce2567d5f43db48288647f864e7 /drivers/pci/controller/pcie-cadence-ep.c | |
| parent | 7e37dc1db594d5a4ed062dbaf51ef89596a9df8a (diff) | |
| download | linux-dfb80534692ddc5b97e1da4384f13dc0287fccb2.tar.bz2 | |
PCI: cadence: Add generic PHY support to host and EP drivers
If PHYs are present, initialize and enable them at driver probe.
Signed-off-by: Alan Douglas <adouglas@cadence.com>
[lorenzo.pieralisi@arm.com: updated commit log]
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Diffstat (limited to 'drivers/pci/controller/pcie-cadence-ep.c')
| -rw-r--r-- | drivers/pci/controller/pcie-cadence-ep.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/pci/controller/pcie-cadence-ep.c b/drivers/pci/controller/pcie-cadence-ep.c index e3fe4124e3af..c02f33d8e506 100644 --- a/drivers/pci/controller/pcie-cadence-ep.c +++ b/drivers/pci/controller/pcie-cadence-ep.c @@ -439,6 +439,7 @@ static int cdns_pcie_ep_probe(struct platform_device *pdev) struct pci_epc *epc; struct resource *res; int ret; + int phy_count; ep = devm_kzalloc(dev, sizeof(*ep), GFP_KERNEL); if (!ep) @@ -473,6 +474,12 @@ static int cdns_pcie_ep_probe(struct platform_device *pdev) if (!ep->ob_addr) return -ENOMEM; + ret = cdns_pcie_init_phy(dev, pcie); + if (ret) { + dev_err(dev, "failed to init phy\n"); + return ret; + } + platform_set_drvdata(pdev, pcie); pm_runtime_enable(dev); ret = pm_runtime_get_sync(dev); if (ret < 0) { @@ -521,6 +528,10 @@ static int cdns_pcie_ep_probe(struct platform_device *pdev) err_get_sync: pm_runtime_disable(dev); + cdns_pcie_disable_phy(pcie); + phy_count = pcie->phy_count; + while (phy_count--) + device_link_del(pcie->link[phy_count]); return ret; } @@ -528,6 +539,7 @@ static int cdns_pcie_ep_probe(struct platform_device *pdev) static void cdns_pcie_ep_shutdown(struct platform_device *pdev) { struct device *dev = &pdev->dev; + struct cdns_pcie *pcie = dev_get_drvdata(dev); int ret; ret = pm_runtime_put_sync(dev); @@ -536,7 +548,7 @@ static void cdns_pcie_ep_shutdown(struct platform_device *pdev) pm_runtime_disable(dev); - /* The PCIe controller can't be disabled. */ + cdns_pcie_disable_phy(pcie); } static struct platform_driver cdns_pcie_ep_driver = { |