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

diff --git a/drivers/i2c/busses/i2c-designware-baytrail.c b/drivers/i2c/busses/i2c-designware-baytrail.c
index 7eddc3b3885242b733d248eeebdf9a8c3f66c49f..1749a0f5a9fafada3a19b7bb73c62742a243301a 100644 (file)
--- 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