mips: pci-lantiq: Fix check for valid gpio

This patch fixes two checks for valid gpio number, formerly (wrongly)
considering zero as invalid, now using gpio_is_valid().

Signed-off-by: Roland Stigge <stigge@antcom.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/arch/mips/pci/pci-lantiq.c b/arch/mips/pci/pci-lantiq.c
index ea453532a33c6dfc0eeb49659b2dc9036494713a..075d87acd12ac4158e090b7918250e958f0d8c05 100644 (file)
--- a/arch/mips/pci/pci-lantiq.c
+++ b/arch/mips/pci/pci-lantiq.c
@@ -129,7 +129,7 @@ static int __devinit ltq_pci_startup(struct platform_device *pdev)
 
        /* setup reset gpio used by pci */
        reset_gpio = of_get_named_gpio(node, "gpio-reset", 0);
-       if (reset_gpio > 0)
+       if (gpio_is_valid(reset_gpio))
                devm_gpio_request(&pdev->dev, reset_gpio, "pci-reset");
 
        /* enable auto-switching between PCI and EBU */
@@ -192,7 +192,7 @@ static int __devinit ltq_pci_startup(struct platform_device *pdev)
        ltq_ebu_w32(ltq_ebu_r32(LTQ_EBU_PCC_IEN) | 0x10, LTQ_EBU_PCC_IEN);
 
        /* toggle reset pin */
-       if (reset_gpio > 0) {
+       if (gpio_is_valid(reset_gpio)) {
                __gpio_set_value(reset_gpio, 0);
                wmb();
                mdelay(1);