Thread (21 messages) 21 messages, 4 authors, 2013-07-04

[PATCH v3 2/8] wlcore: set irq_flags in the board files instead of hiding behind a quirk

From: Felipe Balbi <hidden>
Date: 2013-07-03 14:24:08
Also in: linux-devicetree, linux-omap, linux-wireless, lkml

On Wed, Jul 03, 2013 at 05:18:14PM +0300, Luciano Coelho wrote:
On Wed, 2013-07-03 at 17:13 +0300, Felipe Balbi wrote:
quoted
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.
hah, missed the 'return' call, my bad :-p

Reviewed-by: Felipe Balbi <redacted>
Corrected-my-broken-eye-sight-by: Luciano Coelho [off-list ref]

-- 
balbi
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