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| author | Hans de Goede <hdegoede@redhat.com> | 2017-02-10 11:28:00 +0100 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2017-03-02 15:46:36 +0100 |
| commit | d93a6ed370667be38c465c675229d3229fc8681e (patch) | |
| tree | 40ed7aa4f4432920f50df4f733e462811cf846c9 /drivers/i2c/busses | |
| parent | i2c: designware-baytrail: Acquire P-Unit access on bus acquire (diff) | |
| download | linux-d93a6ed370667be38c465c675229d3229fc8681e.tar.xz linux-d93a6ed370667be38c465c675229d3229fc8681e.zip | |
i2c: designware-baytrail: Call pmic_bus_access_notifier_chain
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
Diffstat (limited to 'drivers/i2c/busses')
| -rw-r--r-- | drivers/i2c/busses/i2c-designware-baytrail.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/i2c/busses/i2c-designware-baytrail.c b/drivers/i2c/busses/i2c-designware-baytrail.c index 7eddc3b38852..1749a0f5a9fa 100644 --- a/drivers/i2c/busses/i2c-designware-baytrail.c +++ b/drivers/i2c/busses/i2c-designware-baytrail.c @@ -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 |