We need to make sure that the reset gpio is available and also set a sane
default state.
Signed-off-by: John Crispin <blogic@xxxxxxxxxxx>
---
arch/mips/pci/pci-lantiq.c | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/arch/mips/pci/pci-lantiq.c b/arch/mips/pci/pci-lantiq.c
index 9568178..f32664b 100644
--- a/arch/mips/pci/pci-lantiq.c
+++ b/arch/mips/pci/pci-lantiq.c
@@ -129,8 +129,16 @@ static int ltq_pci_startup(struct platform_device *pdev)
/* setup reset gpio used by pci */
reset_gpio = of_get_named_gpio(node, "gpio-reset", 0);
- if (gpio_is_valid(reset_gpio))
- devm_gpio_request(&pdev->dev, reset_gpio, "pci-reset");
+ if (gpio_is_valid(reset_gpio)) {
+ int ret = devm_gpio_request(&pdev->dev,
+ reset_gpio, "pci-reset");
+ if (ret) {
+ dev_err(&pdev->dev,
+ "failed to request gpio %d\n", reset_gpio);
+ return ret;
+ }
+ gpio_direction_output(reset_gpio, 1);
+ }
/* enable auto-switching between PCI and EBU */
ltq_pci_w32(0xa, PCI_CR_CLK_CTRL);
--
1.7.10.4
