@@ -335,6 +335,7 @@ static int __exit ks_pcie_remove(struct platform_device *pdev)
{
struct keystone_pcie *ks_pcie = platform_get_drvdata(pdev);
+ phy_exit(ks_pcie->serdes_phy);
clk_disable_unprepare(ks_pcie->clk);
return 0;
@@ -342,12 +343,12 @@ static int __exit ks_pcie_remove(struct platform_device *pdev)
static int __init ks_pcie_probe(struct platform_device *pdev)
{
+ struct device_node *node = pdev->dev.of_node;
struct device *dev = &pdev->dev;
struct keystone_pcie *ks_pcie;
struct pcie_port *pp;
struct resource *res;
void __iomem *reg_p;
- struct phy *phy;
int ret = 0;
ks_pcie = devm_kzalloc(&pdev->dev, sizeof(*ks_pcie),
@@ -357,14 +358,6 @@ static int __init ks_pcie_probe(struct platform_device *pdev)
pp = &ks_pcie->pp;
- /* initialize SerDes Phy if present */
- phy = devm_phy_get(dev, "pcie-phy");
- if (!IS_ERR_OR_NULL(phy)) {
- ret = phy_init(phy);
- if (ret < 0)
- return ret;
- }
-
/* index 2 is to read PCI DEVICE_ID */
res = platform_get_resource(pdev, IORESOURCE_MEM, 2);
reg_p = devm_ioremap_resource(dev, res);
@@ -385,6 +378,17 @@ static int __init ks_pcie_probe(struct platform_device *pdev)
if (ret)
return ret;
+ ks_pcie->serdes_phy = devm_of_phy_get(dev, node, NULL);
+ if (IS_ERR(ks_pcie->serdes_phy)) {
+ dev_err(dev, "No %s serdes driver found: %ld\n",
+ node->name, PTR_ERR(ks_pcie->serdes_phy));
+ goto fail_clk;
+ }
+
+ ret = phy_init(ks_pcie->serdes_phy);
+ if (ret < 0)
+ goto fail_clk;
+
ret = ks_add_pcie_port(ks_pcie, pdev);
if (ret < 0)
goto fail_clk;
@@ -392,7 +396,7 @@ static int __init ks_pcie_probe(struct platform_device *pdev)
return 0;
fail_clk:
clk_disable_unprepare(ks_pcie->clk);
-
+ phy_exit(ks_pcie->serdes_phy);
return ret;
}
@@ -33,6 +33,7 @@ struct keystone_pcie {
/* Application register space */
void __iomem *va_app_base;
struct resource app;
+ struct phy *serdes_phy;
};
/* Keystone DW specific MSI controller APIs/definitions */
This patch updates the Keystone PCI driver to use the generic Keystone serdes driver for serdes initialization and configuration. The generic serdes driver supports peripherals on Keystone platforms that require serdes. Signed-off-by: WingMan Kwok <w-kwok2@ti.com> --- drivers/pci/host/pci-keystone.c | 24 ++++++++++++++---------- drivers/pci/host/pci-keystone.h | 1 + 2 files changed, 15 insertions(+), 10 deletions(-)