openwrtv3/package/kernel/mac80211/patches/901-wlcore-set-irq_flags-in-the-board-files.patch

The platform_quirk element in the platform data was used to change the
way the IRQ is triggered.  When set, the EDGE_IRQ quirk would change
the irqflags used and treat edge trigger differently from the rest.

Instead of hiding this irq flag setting behind the quirk, have the
board files set the flags during initialization.  This will be more
meaningful than driver-specific quirks when we switch to DT.

Additionally, fix missing gpio_request() calls in the boarding files
(so that setting the flags actually works).

Cc: Tony Lindgren <tony@atomide.com>
Cc: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
Reviewed-by: Felipe Balbi <balbi@ti.com>
Acked-by: Sekhar Nori <nsekhar@ti.com>

--- a/drivers/net/wireless/ti/wlcore/debugfs.c
+++ b/drivers/net/wireless/ti/wlcore/debugfs.c
@@ -502,7 +502,7 @@ static ssize_t driver_state_read(struct 
 	DRIVER_STATE_PRINT_HEX(irq);
 	/* TODO: ref_clock and tcxo_clock were moved to wl12xx priv */
 	DRIVER_STATE_PRINT_HEX(hw_pg_ver);
-	DRIVER_STATE_PRINT_HEX(platform_quirks);
+	DRIVER_STATE_PRINT_HEX(irq_flags);
 	DRIVER_STATE_PRINT_HEX(chip.id);
 	DRIVER_STATE_PRINT_STR(chip.fw_ver_str);
 	DRIVER_STATE_PRINT_STR(chip.phy_fw_ver_str);
--- a/drivers/net/wireless/ti/wlcore/main.c
+++ b/drivers/net/wireless/ti/wlcore/main.c
@@ -27,6 +27,7 @@
 #include <linux/vmalloc.h>
 #include <linux/wl12xx.h>
 #include <linux/interrupt.h>
+#include <linux/irq.h>
 
 #include "wlcore.h"
 #include "debug.h"
@@ -528,7 +529,7 @@ static int wlcore_irq_locked(struct wl12
 	 * In case edge triggered interrupt must be used, we cannot iterate
 	 * more than once without introducing race conditions with the hardirq.
 	 */
-	if (wl->platform_quirks & WL12XX_PLATFORM_QUIRK_EDGE_IRQ)
+	if (wl->irq_flags & IRQF_TRIGGER_RISING)
 		loopcount = 1;
 
 	wl1271_debug(DEBUG_IRQ, "IRQ work");
@@ -5934,7 +5935,6 @@ struct ieee80211_hw *wlcore_alloc_hw(siz
 	wl->ap_ps_map = 0;
 	wl->ap_fw_ps_map = 0;
 	wl->quirks = 0;
-	wl->platform_quirks = 0;
 	wl->system_hlid = WL12XX_SYSTEM_HLID;
 	wl->active_sta_count = 0;
 	wl->active_link_count = 0;
@@ -6075,7 +6075,7 @@ static void wlcore_nvs_cb(const struct f
 	struct platform_device *pdev = wl->pdev;
 	struct wlcore_platdev_data *pdev_data = dev_get_platdata(&pdev->dev);
 	struct wl12xx_platform_data *pdata = pdev_data->pdata;
-	unsigned long irqflags;
+
 	int ret;
 	irq_handler_t hardirq_fn = NULL;
 
@@ -6103,29 +6103,19 @@ static void wlcore_nvs_cb(const struct f
 	wlcore_adjust_conf(wl);
 
 	wl->irq = platform_get_irq(pdev, 0);
-	wl->platform_quirks = pdata->platform_quirks;
 	wl->if_ops = pdev_data->if_ops;
 
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,32)
-	irqflags = IRQF_TRIGGER_RISING;
+	wl->irq_flags = irq_get_trigger_type(wl->irq) | IRQF_ONESHOT;
 	hardirq_fn = wlcore_hardirq;
-#else
-	if (wl->platform_quirks & WL12XX_PLATFORM_QUIRK_EDGE_IRQ) {
-		irqflags = IRQF_TRIGGER_RISING;
-		hardirq_fn = wlcore_hardirq;
-	} else {
-		irqflags = IRQF_TRIGGER_HIGH | IRQF_ONESHOT;
-	}
-#endif
 
 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,31)
 	ret = compat_request_threaded_irq(&wl->irq_compat, wl->irq,
 					  hardirq_fn, wlcore_irq,
-					  irqflags,
+					  wl->irqflags,
 					  pdev->name, wl);
 #else
 	ret = request_threaded_irq(wl->irq, hardirq_fn, wlcore_irq,
-				   irqflags, pdev->name, wl);
+				   wl->irq_flags, pdev->name, wl);
 #endif
 	if (ret < 0) {
 		wl1271_error("request_irq() failed: %d", ret);
--- a/drivers/net/wireless/ti/wlcore/wlcore.h
+++ b/drivers/net/wireless/ti/wlcore/wlcore.h
@@ -188,6 +188,8 @@ struct wl1271 {
 
 	int irq;
 
+	int irq_flags;
+
 	spinlock_t wl_lock;
 
 	enum wlcore_state state;
@@ -395,9 +397,6 @@ struct wl1271 {
 	/* Quirks of specific hardware revisions */
 	unsigned int quirks;
 
-	/* Platform limitations */
-	unsigned int platform_quirks;
-
 	/* number of currently active RX BA sessions */
 	int ba_rx_session_count;