From 1a2017b7143d9d0ec1b75078e76c6f55a2e55d17 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Fri, 29 Jun 2012 14:55:40 +0100 Subject: mfd: Also restore wm8994 GPIO IRQ masks after reset 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 Signed-off-by: Samuel Ortiz --- drivers/mfd/wm8994-core.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'drivers') diff --git a/drivers/mfd/wm8994-core.c b/drivers/mfd/wm8994-core.c index 53293c742a19..eec74aa55fdf 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; -- cgit v1.2.3