[PATCH 3/5] PCI: qcom: Keep PERST# GPIO state as-is during probe

[Krishna Chaitanya Chundru]

The PERST# signal is used to reset PCIe devices. Currently, the driver
requests the GPIO with GPIOD_OUT_HIGH, which forces the line high
during probe. This can unintentionally assert reset early, breaking
link retention or causing unexpected device behavior.

Change the request to use GPIOD_ASIS so the driver preserves the
existing state configured by the bootloader or firmware. This allows
platforms that manage PERST# externally to maintain proper reset
sequencing.

Signed-off-by: Krishna Chaitanya Chundru <krishna.chundru at oss.qualcomm.com>
---
 drivers/pci/controller/dwc/pcie-qcom.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/pci/controller/dwc/pcie-qcom.c b/drivers/pci/controller/dwc/pcie-qcom.c
index 7b92e7a1c0d9364a9cefe1450818f9cbfc7fd3ac..9342f9c75f1c3017b55614069a7aa821a6fb8da7 100644
--- a/drivers/pci/controller/dwc/pcie-qcom.c
+++ b/drivers/pci/controller/dwc/pcie-qcom.c
@@ -1711,7 +1711,7 @@ static int qcom_pcie_parse_port(struct qcom_pcie *pcie, struct device_node *node
 	int ret;
 
 	reset = devm_fwnode_gpiod_get(dev, of_fwnode_handle(node),
-				      "reset", GPIOD_OUT_HIGH, "PERST#");
+				      "reset", GPIOD_ASIS, "PERST#");
 	if (IS_ERR(reset))
 		return PTR_ERR(reset);
 
@@ -1772,7 +1772,7 @@ static int qcom_pcie_parse_legacy_binding(struct qcom_pcie *pcie)
 	if (IS_ERR(phy))
 		return PTR_ERR(phy);
 
-	reset = devm_gpiod_get_optional(dev, "perst", GPIOD_OUT_HIGH);
+	reset = devm_gpiod_get_optional(dev, "perst", GPIOD_ASIS);
 	if (IS_ERR(reset))
 		return PTR_ERR(reset);
 

-- 
2.34.1