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Message-ID: <20221013183854.21087-2-vidyas@nvidia.com>
Date: Fri, 14 Oct 2022 00:08:34 +0530
From: Vidya Sagar <vidyas@...dia.com>
To: <lpieralisi@...nel.org>, <robh@...nel.org>, <kw@...ux.com>,
<bhelgaas@...gle.com>, <thierry.reding@...il.com>,
<jonathanh@...dia.com>, <kishon@...com>, <vkoul@...nel.org>,
<mani@...nel.org>, <Sergey.Semin@...kalelectronics.ru>,
<ffclaire1224@...il.com>
CC: <linux-pci@...r.kernel.org>, <linux-tegra@...r.kernel.org>,
<linux-kernel@...r.kernel.org>, <linux-phy@...ts.infradead.org>,
<kthota@...dia.com>, <mmaddireddy@...dia.com>, <vidyas@...dia.com>,
<sagar.tv@...il.com>
Subject: [PATCH V3 01/21] PCI: tegra194: Use devm_gpiod_get_optional() to parse "nvidia,refclk-select"
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@...dia.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
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