[V5,09/13] PCI: tegra194: Use devm_gpiod_get_optional() to parse "nvidia,refclk-select"
From: Manikanta Maddireddy
Date: Sun Feb 08 2026 - 13:10:27 EST
From: Vidya Sagar <vidyas@xxxxxxxxxx>
The GPIO DT property "nvidia,refclk-select" to select the PCIe reference
clock is optional. Use devm_gpiod_get_optional() to get it.
Fixes: c57247f940e8 ("PCI: tegra: Add support for PCIe endpoint mode in Tegra194")
Signed-off-by: Vidya Sagar <vidyas@xxxxxxxxxx>
Signed-off-by: Manikanta Maddireddy <mmaddireddy@xxxxxxxxxx>
---
V5:
* Added Fixes tag
V4:
* None
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 7463cb1d9606..bed6edb3d795 100644
--- a/drivers/pci/controller/dwc/pcie-tegra194.c
+++ b/drivers/pci/controller/dwc/pcie-tegra194.c
@@ -1170,9 +1170,9 @@ 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;
--
2.34.1