From: Mark Brown <broonie@opensource.wolfsonmicro.com>
To: Samuel Ortiz <sameo@openedhand.com>
Cc: linux-kernel@vger.kernel.org,
Mark Brown <broonie@opensource.wolfsonmicro.com>
Subject: [PATCH 2/2] mfd: Ensure all WM8350 IRQs are masked at startup
Date: Mon, 26 Jan 2009 19:23:19 +0000 [thread overview]
Message-ID: <1232997799-18943-2-git-send-email-broonie@opensource.wolfsonmicro.com> (raw)
In-Reply-To: <1232997799-18943-1-git-send-email-broonie@opensource.wolfsonmicro.com>
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>
---
drivers/mfd/wm8350-core.c | 7 +++++++
1 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/drivers/mfd/wm8350-core.c b/drivers/mfd/wm8350-core.c
index 908284c..3024aa2 100644
--- 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);
--
1.5.6.5
next prev parent reply other threads:[~2009-01-26 19:23 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-01-26 19:23 [PATCH 1/2] mfd: Support active high IRQs on WM835x Mark Brown
2009-01-26 19:23 ` Mark Brown [this message]
2009-02-02 21:56 ` Andrew Morton
2009-02-06 13:54 ` Samuel Ortiz
2009-02-06 14:27 ` Mark Brown
-- strict thread matches above, loose matches on Subject: below --
2009-02-05 18:12 [PATCH 0/2] WM8350 updates Mark Brown
2009-02-05 18:13 ` [PATCH 1/2] mfd: Support active high IRQs on WM835x Mark Brown
2009-02-05 18:13 ` [PATCH 2/2] mfd: Ensure all WM8350 IRQs are masked at startup Mark Brown
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