[PATCH V3 01/21] PCI: tegra194: Use devm_gpiod_get_optional() to parse "nvidia,refclk-select"

Vidya Sagar
2022-10-13T18:42:31Z

The GPIO DT property "nvidia,refclk-select" to select the PCIe reference
clock is optional. Use devm_gpiod_get_optional() to get it.

Signed-off-by: Vidya Sagar <vidyas@nvidia.com>
---
V3:
* None

V2:
* None

drivers/pci/controller/dwc/pcie-tegra194.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/pci/controller/dwc/pcie-tegra194.c b/drivers/pci/controller/dwc/pcie-tegra194.c
index 9e64b948f999..d7ab33931de4 100644
--- a/drivers/pci/controller/dwc/pcie-tegra194.c
+++ b/drivers/pci/controller/dwc/pcie-tegra194.c
@@ -1233,9 +1233,9 @@ static int tegra_pcie_dw_parse_dt(struct tegra_pcie_dw *pcie)
return err;
}

- pcie->pex_refclk_sel_gpiod = devm_gpiod_get(pcie->dev,
- "nvidia,refclk-select",
- GPIOD_OUT_HIGH);
+ pcie->pex_refclk_sel_gpiod = devm_gpiod_get_optional(pcie->dev,
+ "nvidia,refclk-select",
+ GPIOD_OUT_HIGH);
if (IS_ERR(pcie->pex_refclk_sel_gpiod)) {
int err = PTR_ERR(pcie->pex_refclk_sel_gpiod);
const char *level = KERN_ERR;
--
2.17.1