On Wed, 2013-07-03 at 17:13 +0300, Felipe Balbi wrote:

Hi,

On Wed, Jul 03, 2013 at 05:03:23PM +0300, Luciano Coelho wrote:

quoted

diff --git a/arch/arm/mach-omap2/board-4430sdp.c b/arch/arm/mach-omap2/board-4430sdp.c
index 56a9a4f..953f620 100644
--- a/arch/arm/mach-omap2/board-4430sdp.c
+++ b/arch/arm/mach-omap2/board-4430sdp.c

@@ -703,12 +703,30 @@ static void __init omap4_sdp4430_wifi_init(void)
 
 	omap4_sdp4430_wifi_mux_init();
 	omap4_sdp4430_wlan_data.irq = gpio_to_irq(GPIO_WIFI_IRQ);
+
+	ret = gpio_request_one(GPIO_WIFI_IRQ, GPIOF_IN, "GPIO_WIFI_IRQ");
+	if (ret) {
+		pr_err("error requesting wl12xx gpio: %d\n", ret);
+		goto out;
+	}
+
+	ret = irq_set_irq_type(gpio_to_irq(GPIO_WIFI_IRQ), IRQ_TYPE_LEVEL_HIGH);
+	if (ret) {
+		pr_err("error setting wl12xx irq type: %d\n", ret);
+		goto free;
+	}
+
 	ret = wl12xx_set_platform_data(&omap4_sdp4430_wlan_data);
 	if (ret)
 		pr_err("Error setting wl12xx data: %d\n", ret);
+
 	ret = platform_device_register(&omap_vwlan_device);
 	if (ret)
 		pr_err("Error registering wl12xx device: %d\n", ret);
+out:
+	return;
+free:
+	gpio_free(GPIO_WIFI_IRQ);

actually, you should leave this GPIO requested in order to use it as
IRQ.

ditto for all others

Actually, I don't need to use the GPIO if something goes wrong (ie.
setting the IRQ type or setting the platform data).  Notice that in the
normal cases (ie. without errors), I return before the gpio_free() is
called.

This is not really needed, but it's a bit cleaner and we can probably
release some resources.

--
Luca.