Messages in this thread Patch in this message | | | From | Mark Brown <> | Subject | [PATCH 2/2] mfd: wm8994: Also restore GPIO IRQ masks after reset | Date | Fri, 29 Jun 2012 14:55:40 +0100 |
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This ensures that if we are using a GPIO as a wake source it continues to function while we're suspended.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> --- drivers/mfd/wm8994-core.c | 7 +++++++ 1 file changed, 7 insertions(+)
diff --git a/drivers/mfd/wm8994-core.c b/drivers/mfd/wm8994-core.c index 53293c7..eec74aa 100644 --- a/drivers/mfd/wm8994-core.c +++ b/drivers/mfd/wm8994-core.c @@ -293,6 +293,13 @@ static int wm8994_suspend(struct device *dev) if (ret != 0) dev_err(dev, "Failed to restore GPIO registers: %d\n", ret); + /* In case one of the GPIOs is used as a wake input. */ + ret = regcache_sync_region(wm8994->regmap, + WM8994_INTERRUPT_STATUS_1_MASK, + WM8994_INTERRUPT_STATUS_1_MASK); + if (ret != 0) + dev_err(dev, "Failed to restore interrupt mask: %d\n", ret); + regcache_cache_only(wm8994->regmap, true); wm8994->suspended = true; -- 1.7.10
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