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mfd: Ensure all WM8350 IRQs are masked at startup
author
Mark Brown
<broonie@opensource.wolfsonmicro.com>
Fri, 6 Feb 2009 14:28:15 +0000
(15:28 +0100)
committer
Samuel Ortiz
<samuel@sortiz.org>
Tue, 17 Feb 2009 08:00:14 +0000
(09:00 +0100)
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>
drivers/mfd/wm8350-core.c
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diff --git
a/drivers/mfd/wm8350-core.c
b/drivers/mfd/wm8350-core.c
index
ea38018
..
84d5ea1
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;
}
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);
mutex_init(&wm8350->auxadc_mutex);
mutex_init(&wm8350->irq_mutex);
INIT_WORK(&wm8350->irq_work, wm8350_irq_worker);