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i2c: designware-baytrail: Call pmic_bus_access_notifier_chain

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Call the iosf_mbi pmic_bus_access_notifier_chain on bus acquire / release.

BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=155241
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: tagorereddy <tagore.chandan@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170210102802.20898-11-hdegoede@redhat.com
This commit is contained in:
Hans de Goede 2017-02-10 11:28:00 +01:00 committed by Daniel Vetter
parent 5b2cacceb7
commit d93a6ed370
1 changed files with 4 additions and 0 deletions
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4
drivers/i2c/busses/i2c-designware-baytrail.c
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@ -63,6 +63,8 @@ static void reset_semaphore(struct dw_i2c_dev *dev)
pm_qos_update_request(&dev->pm_qos, PM_QOS_DEFAULT_VALUE);
iosf_mbi_call_pmic_bus_access_notifier_chain(MBI_PMIC_BUS_ACCESS_END,
NULL);
iosf_mbi_punit_release();
}
@ -82,6 +84,8 @@ static int baytrail_i2c_acquire(struct dw_i2c_dev *dev)
return 0;
iosf_mbi_punit_acquire();
iosf_mbi_call_pmic_bus_access_notifier_chain(MBI_PMIC_BUS_ACCESS_BEGIN,
NULL);
/*
* Disallow the CPU to enter C6 or C7 state, entering these states