mfd: Ensure all WM8350 IRQs are masked at startup

The IRQs might have been left enabled in hardware, generating spurious
IRQs before the drivers have registered.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>

diff --git a/drivers/mfd/wm8350-core.c b/drivers/mfd/wm8350-core.c
index ea3801833176a32b001eddbbf43212b2ee9e9334..84d5ea1ec17120e9c4d8d94b6a2c9376ac241449 100644 (file)
--- a/drivers/mfd/wm8350-core.c
+++ b/drivers/mfd/wm8350-core.c
@@ -1419,6 +1419,13 @@ int wm8350_device_init(struct wm8350 *wm8350, int irq,
                return ret;
        }
 
+       wm8350_reg_write(wm8350, WM8350_SYSTEM_INTERRUPTS_MASK, 0xFFFF);
+       wm8350_reg_write(wm8350, WM8350_INT_STATUS_1_MASK, 0xFFFF);
+       wm8350_reg_write(wm8350, WM8350_INT_STATUS_2_MASK, 0xFFFF);
+       wm8350_reg_write(wm8350, WM8350_UNDER_VOLTAGE_INT_STATUS_MASK, 0xFFFF);
+       wm8350_reg_write(wm8350, WM8350_GPIO_INT_STATUS_MASK, 0xFFFF);
+       wm8350_reg_write(wm8350, WM8350_COMPARATOR_INT_STATUS_MASK, 0xFFFF);
+
        mutex_init(&wm8350->auxadc_mutex);
        mutex_init(&wm8350->irq_mutex);
        INIT_WORK(&wm8350->irq_work, wm8350_irq_worker);