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freifunkist-firmware/target/linux/omap/patches-3.13/901-wlcore-set-irq_flags-in...

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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>
---
arch/arm/mach-davinci/board-da850-evm.c | 8 +++++++-
arch/arm/mach-omap2/board-omap3evm.c | 19 ++++++++++++++++++
arch/arm/mach-omap2/board-zoom-peripherals.c | 30 +++++++++++++++++++++++++---
drivers/net/wireless/ti/wlcore/debugfs.c | 2 +-
drivers/net/wireless/ti/wlcore/main.c | 17 ++++++++--------
drivers/net/wireless/ti/wlcore/wlcore.h | 5 ++---
include/linux/wl12xx.h | 4 ----
7 files changed, 64 insertions(+), 21 deletions(-)
--- 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"
@@ -529,7 +530,7 @@ 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");
@@ -5893,7 +5894,6 @@ 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;
@@ -6034,7 +6034,7 @@ 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;
@@ -6062,18 +6062,17 @@ 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 (wl->platform_quirks & WL12XX_PLATFORM_QUIRK_EDGE_IRQ) {
- irqflags = IRQF_TRIGGER_RISING;
- hardirq_fn = wlcore_hardirq;
- } else {
- irqflags = IRQF_TRIGGER_HIGH | IRQF_ONESHOT;
- }
+ wl->irq_flags = irq_get_trigger_type(wl->irq);
+
+ hardirq_fn = wlcore_hardirq;
+
+ /* Since we don't use the primary handler, we must set ONESHOT */
+ wl->irq_flags |= IRQF_ONESHOT;
ret = request_threaded_irq(wl->irq, hardirq_fn, wlcore_irq,
- irqflags, pdev->name, wl);
+ wl->irq_flags, pdev->name, wl);
if (ret < 0) {
wl1271_error("request_irq() failed: %d", ret);
goto out_free_nvs;
--- a/drivers/net/wireless/ti/wlcore/wlcore.h
+++ b/drivers/net/wireless/ti/wlcore/wlcore.h
@@ -186,6 +186,8 @@ struct wl1271 {
int irq;
+ int irq_flags;
+
spinlock_t wl_lock;
enum wlcore_state state;
@@ -393,9 +395,6 @@ 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;
--- a/include/linux/wl12xx.h
+++ b/include/linux/wl12xx.h
@@ -59,13 +59,9 @@ struct wl12xx_platform_data {
int irq;
int board_ref_clock;
int board_tcxo_clock;
- unsigned long platform_quirks;
bool pwr_in_suspend;
};
-/* Platform does not support level trigger interrupts */
-#define WL12XX_PLATFORM_QUIRK_EDGE_IRQ BIT(0)
-
#ifdef CONFIG_WILINK_PLATFORM_DATA
int wl12xx_set_platform_data(const struct wl12xx_platform_data *data);