[PATCH] PCI: dwc: meson: Fix reset GPIO initial state

[Ronald Claveau via B4 Relay]

From: Ronald Claveau <linux-kernel-dev at aliel.fr>

Commit 4d3186a525b3 ("PCI: amlogic: Fix reset assertion via gpio
descriptor") inverted the reset assertion logic to use proper gpio
descriptor semantics, and moved the polarity configuration to the
device tree as GPIO_ACTIVE_LOW. However, the initial GPIO state
"GPIOD_OUT_LOW" was not updated accordingly.

Change GPIOD_OUT_LOW to GPIOD_OUT_HIGH to get the right behaviour.

With GPIOD_OUT_LOW:

    ahci 0000:01:00.0: enabling device (0000 -> 0002)
    ahci 0000:01:00.0: SSS flag set, parallel bus scan disabled
    ahci 0000:01:00.0: Controller reset failed (0xffffffff)
    ahci 0000:01:00.0: probe with driver ahci failed with error -5

With this fix:

    ahci 0000:01:00.0: enabling device (0000 -> 0002)
    ahci 0000:01:00.0: AHCI vers 0001.0300, 32 command slots, 6 Gbps,
                       SATA mode
    ahci 0000:01:00.0: 1/1 ports implemented (port mask 0x1)
    ahci 0000:01:00.0: flags: 64bit ncq led clo only pio ccc

Fixes: 4d3186a525b3 ("PCI: amlogic: Fix reset assertion via gpio descriptor")
Signed-off-by: Ronald Claveau <linux-kernel-dev at aliel.fr>
---
 drivers/pci/controller/dwc/pci-meson.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pci/controller/dwc/pci-meson.c b/drivers/pci/controller/dwc/pci-meson.c
index 0694084f612b7..15ed59b8764fb 100644
--- a/drivers/pci/controller/dwc/pci-meson.c
+++ b/drivers/pci/controller/dwc/pci-meson.c
@@ -400,7 +400,7 @@ static int meson_pcie_probe(struct platform_device *pdev)
 		return PTR_ERR(mp->phy);
 	}
 
-	mp->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);
+	mp->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
 	if (IS_ERR(mp->reset_gpio)) {
 		dev_err(dev, "get reset gpio failed\n");
 		return PTR_ERR(mp->reset_gpio);

---
base-commit: abe651837cb394f76d738a7a747322fca3bf17ba
change-id: 20260616-fix-meson-pcie-reset-gpio-2b9e188668c5

Best regards,
-- 
Ronald Claveau <linux-kernel-dev at aliel.fr>