From: Hans de Goede <hdegoede@redhat.com>
To: "Daniel Vetter" <daniel.vetter@intel.com>,
"Jani Nikula" <jani.nikula@linux.intel.com>,
"Ville Syrjälä" <ville.syrjala@linux.intel.com>,
"Jarkko Nikula" <jarkko.nikula@linux.intel.com>,
"Wolfram Sang" <wsa@the-dreams.de>,
"Andy Shevchenko" <andriy.shevchenko@linux.intel.com>,
"Thomas Gleixner" <tglx@linutronix.de>,
"H . Peter Anvin" <hpa@zytor.com>
Cc: Takashi Iwai <tiwai@suse.de>,
"russianneuromancer @ ya . ru" <russianneuromancer@ya.ru>,
intel-gfx <intel-gfx@lists.freedesktop.org>,
Hans de Goede <hdegoede@redhat.com>,
linux-i2c@vger.kernel.org,
Mika Westerberg <mika.westerberg@linux.intel.com>
Subject: [PATCH v4 10/12] i2c: designware-baytrail: Call pmic_bus_access_notifier_chain
Date: Fri, 24 Feb 2017 10:29:10 +0100 [thread overview]
Message-ID: <20170224092912.10685-11-hdegoede@redhat.com> (raw)
In-Reply-To: <20170224092912.10685-1-hdegoede@redhat.com>
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>
---
Changes in v2:
-Spelling: P-Unit, PMIC
---
drivers/i2c/busses/i2c-designware-baytrail.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/i2c/busses/i2c-designware-baytrail.c b/drivers/i2c/busses/i2c-designware-baytrail.c
index 7eddc3b..1749a0f 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
--
2.9.3
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next prev parent reply other threads:[~2017-02-24 9:29 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-24 9:29 [PATCH v4 00/12] coordinate cht i2c-pmic and i915-punit accesses Hans de Goede
2017-02-24 9:29 ` [PATCH v4 01/12] x86/platform/intel/iosf_mbi: Add a mutex for P-Unit access Hans de Goede
2017-02-24 9:29 ` [PATCH v4 02/12] x86/platform/intel/iosf_mbi: Add a PMIC bus access notifier Hans de Goede
2017-02-24 9:29 ` [PATCH v4 03/12] i2c: designware: Rename accessor_flags to flags Hans de Goede
2017-02-24 9:29 ` [PATCH v4 04/12] i2c: designware-baytrail: Pass dw_i2c_dev into helper functions Hans de Goede
2017-02-24 9:29 ` [PATCH v4 05/12] i2c: designware-baytrail: Only check iosf_mbi_available() for shared hosts Hans de Goede
2017-02-24 9:29 ` [PATCH v4 06/12] i2c: designware-baytrail: Disallow the CPU to enter C6 or C7 while holding the punit semaphore Hans de Goede
2017-02-24 9:29 ` [PATCH v4 07/12] i2c: designware-baytrail: Fix race when resetting the semaphore Hans de Goede
2017-02-24 9:29 ` [PATCH v4 08/12] i2c: designware-baytrail: Add support for cherrytrail Hans de Goede
2017-02-24 9:29 ` [PATCH v4 09/12] i2c: designware-baytrail: Acquire P-Unit access on bus acquire Hans de Goede
2017-02-24 9:29 ` Hans de Goede [this message]
2017-02-24 9:29 ` [PATCH v4 11/12] drm/i915: Add intel_uncore_suspend / resume functions Hans de Goede
2017-02-24 9:29 ` [PATCH v4 12/12] drm/i915: Listen for PMIC bus access notifications Hans de Goede
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