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mfd: Support active high IRQs on WM835x 

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
hifive-unleashed-5.1
Mark Brown 2009-02-06 15:27:13 +01:00 committed by Samuel Ortiz
parent 9dfd338198
commit 3206450355
2 changed files with 17 additions and 1 deletions
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16
drivers/mfd/wm8350-core.c
View File

@ -1438,7 +1438,21 @@ int wm8350_device_init(struct wm8350 *wm8350, int irq,
mutex_init(&wm8350->irq_mutex);
INIT_WORK(&wm8350->irq_work, wm8350_irq_worker);
if (irq) {
ret = request_irq(irq, wm8350_irq, 0,
int flags = 0;
if (pdata && pdata->irq_high) {
flags |= IRQF_TRIGGER_HIGH;
wm8350_set_bits(wm8350, WM8350_SYSTEM_CONTROL_1,
WM8350_IRQ_POL);
} else {
flags |= IRQF_TRIGGER_LOW;
wm8350_clear_bits(wm8350, WM8350_SYSTEM_CONTROL_1,
WM8350_IRQ_POL);
}
ret = request_irq(irq, wm8350_irq, flags,
"wm8350", wm8350);
if (ret != 0) {
dev_err(wm8350->dev, "Failed to request IRQ: %d\n",

2
include/linux/mfd/wm8350/core.h
View File

@ -640,9 +640,11 @@ struct wm8350 {
*
* @init: Function called during driver initialisation. Should be
* used by the platform to configure GPIO functions and similar.
* @irq_high: Set if WM8350 IRQ is active high.
*/
struct wm8350_platform_data {
int (*init)(struct wm8350 *wm8350);
int irq_high;
};