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Wed, 5 Sep 2018 12:30:53 +0000 (GMT) X-AuditID: cbfec7f5-34dff700000012c6-7d-5b8fcc7e2c53 Received: from eusync4.samsung.com ( [203.254.199.214]) by eusmgms1.samsung.com (EUCPMTA) with SMTP id 05.D2.04284.D7CCF8B5; Wed, 5 Sep 2018 13:30:53 +0100 (BST) Received: from AMDC2765.digital.local ([106.116.147.25]) by eusync4.samsung.com (Oracle Communications Messaging Server 7.0.5.31.0 64bit (built May 5 2014)) with ESMTPA id <0PEL00LQW1FEPT80@eusync4.samsung.com>; Wed, 05 Sep 2018 13:30:53 +0100 (BST) From: Marek Szyprowski To: linux-kernel@vger.kernel.org, linux-samsung-soc@vger.kernel.org Cc: Marek Szyprowski , MyungJoo Ham , Lee Jones , Bartlomiej Zolnierkiewicz Subject: [PATCH] mfd: max8997: Disable interrupt handling for suspend/resume cycle Date: Wed, 05 Sep 2018 14:30:43 +0200 Message-id: <20180905123043.22604-1-m.szyprowski@samsung.com> X-Mailer: git-send-email 2.17.1 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFupnkeLIzCtJLcpLzFFi42LZduzned26M/3RBjNucVpsnLGe1eL+16OM Fpd3zWGzmHF+H5PF2iN32S1uN65gc2DzuHNtD5tH35ZVjB6fN8kFMEdx2aSk5mSWpRbp2yVw ZcydOIe54Cx7xeVNRxkbGJexdTFycEgImEg0TC3tYuTiEBJYwShxcMFXdgjnM6PEv69XWLoY OcGKmnq3sEEkljFKHGr5wwzhNDBJrPn2ixmkik3AUKLrbRcbiC0i4Cxx+8M3FpAiZoEtjBLT rz4CGyUsECJx8ftbMJtFQFXiy8wrjCA2r4CtxLNFR5kg1slLrN5wAGyDhMBVVomOy/tZIRIu EnvWbmKHsIUlXh3fAmXLSHR2HGSCaGhmlGifMYsdwulhlNg6ZwcbRJW1xOHjF8EmMQvwSUza Np0ZEgS8Eh1tQhAlHhLn9naAvSMkECtxevJt5gmMEgsYGVYxiqeWFuempxYb56WW6xUn5haX 5qXrJefnbmIERtPpf8e/7mDc9yfpEKMAB6MSD69GS1+0EGtiWXFl7iFGCQ5mJRFeo5P90UK8 KYmVValF+fFFpTmpxYcYpTlYlMR5+bTSooUE0hNLUrNTUwtSi2CyTBycUg2M62z+Tpgxg3/9 slU33/b1P9zI93HB1Iivq298KDq56/T9UzZ7XRMb4r+82xXpu+6Kjevs1TxclQIzue+u/Lb8 lIeNTgOz5MJZb43DTs9wPdA8n/9Y2H2V6IAHaybYxaocW3fh9L6rp8N8KpM+n/M3SdSbVvKx ZLtKgOs/q6lPjnU+1C5/+GZPXYoSS3FGoqEWc1FxIgCWi1KGogIAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrIJMWRmVeSWpSXmKPExsVy+t/xa7q1Z/qjDRbMkbfYOGM9q8X9r0cZ LS7vmsNmMeP8PiaLtUfuslvcblzB5sDmcefaHjaPvi2rGD0+b5ILYI7isklJzcksSy3St0vg ypg7cQ5zwVn2isubjjI2MC5j62Lk5JAQMJFo6t0CZHNxCAksYZQ4MOUzE4TTxCTxv2cRO0gV m4ChRNfbLrAOEQFnidsfvrGAFDELbGGUeLljPwtIQlggROLi97dgNouAqsSXmVcYQWxeAVuJ Z4uOMkGsk5dYveEA8wRGrgWMDKsYRVJLi3PTc4sN9YoTc4tL89L1kvNzNzECPb7t2M/NOxgv bQw+xCjAwajEw6vR0hctxJpYVlyZe4hRgoNZSYTX6GR/tBBvSmJlVWpRfnxRaU5q8SFGaQ4W JXHe8waVUUIC6YklqdmpqQWpRTBZJg5OqQbGWX0bpge3ixqeWL90oWyj4bRaD355C/WASY8S tkwSe2doZy684YXutwbJRJcdG534yt66zTzl3jC/kPn6FUMxztt/LjwytbtoUvzg94Pzf6c8 cuk1WNg/tX9SNhPf5FeOqzrzDNqO8SSvEa3xuHRCWsj91AfBoMK4JH+Ff9NkzW+7/WFssrms xFKckWioxVxUnAgAJ7K48fQBAAA= X-CMS-MailID: 20180905123053eucas1p196633ed9d661f79ed1c2e06a14a2b964 X-Msg-Generator: CA CMS-TYPE: 201P X-CMS-RootMailID: 20180905123053eucas1p196633ed9d661f79ed1c2e06a14a2b964 References: Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Disable IRQs during suspend/resume cycle to ensure handling of wakeup interrupts (i.e. RTC wake alarm) after max8997_resume(). This way it can be properly handled when I2C bus is finally available. This pattern is also used in other MAX PMIC MFD drivers. Signed-off-by: Marek Szyprowski --- drivers/mfd/max8997.c | 2 ++ 1 file changed, 2 insertions(+) -- 2.17.1 diff --git a/drivers/mfd/max8997.c b/drivers/mfd/max8997.c index d1495d76bf2c..5a50ea976c70 100644 --- a/drivers/mfd/max8997.c +++ b/drivers/mfd/max8997.c @@ -464,6 +464,7 @@ static int max8997_suspend(struct device *dev) if (device_may_wakeup(dev)) irq_set_irq_wake(max8997->irq, 1); + disable_irq(max8997->irq); return 0; } @@ -474,6 +475,7 @@ static int max8997_resume(struct device *dev) if (device_may_wakeup(dev)) irq_set_irq_wake(max8997->irq, 0); + enable_irq(max8997->irq); return max8997_irq_resume(max8997); }