This is a note to let you know that I've just added the patch titled
mfd: Test for jack detection when deciding if wm8994 should suspend
to the 3.2-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
mfd-test-for-jack-detection-when-deciding-if-wm8994-should-suspend.patch
and it can be found in the queue-3.2 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From e7c248a049c2aac21bded0b0722caee6f0e57256 Mon Sep 17 00:00:00 2001
From: Mark Brown <[email protected]>
Date: Mon, 20 Feb 2012 21:32:32 +0000
Subject: mfd: Test for jack detection when deciding if wm8994 should suspend
From: Mark Brown <[email protected]>
commit e7c248a049c2aac21bded0b0722caee6f0e57256 upstream.
The jack detection on WM1811 is often required during system suspend, add
it as another check when deciding if we should suspend.
Signed-off-by: Mark Brown <[email protected]>
Signed-off-by: Samuel Ortiz <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/mfd/wm8994-core.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
--- a/drivers/mfd/wm8994-core.c
+++ b/drivers/mfd/wm8994-core.c
@@ -252,6 +252,20 @@ static int wm8994_suspend(struct device
break;
}
+ switch (wm8994->type) {
+ case WM1811:
+ ret = wm8994_reg_read(wm8994, WM8994_ANTIPOP_2);
+ if (ret < 0) {
+ dev_err(dev, "Failed to read jackdet: %d\n", ret);
+ } else if (ret & WM1811_JACKDET_MODE_MASK) {
+ dev_dbg(dev, "CODEC still active, ignoring suspend\n");
+ return 0;
+ }
+ break;
+ default:
+ break;
+ }
+
/* Disable LDO pulldowns while the device is suspended if we
* don't know that something will be driving them. */
if (!wm8994->ldo_ena_always_driven)
Patches currently in stable-queue which might be from
[email protected] are
queue-3.2/regulator-fix-the-ldo-configure-according-to-88pm860x-spec.patch
queue-3.2/mfd-test-for-jack-detection-when-deciding-if-wm8994-should-suspend.patch
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