[4/7] i2c: designware-baytrail: Call pmic_bus_access_notifier_chain
diff mbox

Message ID 20170108134427.8392-5-hdegoede@redhat.com
State Awaiting Upstream
Headers show

Commit Message

Hans de Goede Jan. 8, 2017, 1:44 p.m. UTC
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>
---
 drivers/i2c/busses/i2c-designware-baytrail.c | 4 ++++
 1 file changed, 4 insertions(+)

Comments

Andy Shevchenko Jan. 8, 2017, 3:23 p.m. UTC | #1
On Sun, 2017-01-08 at 14:44 +0100, Hans de Goede wrote:
> Call the iosf_mbi pmic_bus_access_notifier_chain on bus acquire /
> release.
> 

FWIW:
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

> 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>
> ---
>  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 cf7a2a0..e8cf10a 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_ACC
> ESS_END,
> +						     NULL);
>  	iosf_mbi_punit_unlock();
>  }
>  
> @@ -82,6 +84,8 @@ static int baytrail_i2c_acquire(struct dw_i2c_dev
> *dev)
>  		return 0;
>  
>  	iosf_mbi_punit_lock();
> +	iosf_mbi_call_pmic_bus_access_notifier_chain(MBI_PMIC_BUS_ACC
> ESS_BEGIN,
> +						     NULL);
>  
>  	/*
>  	 * Disallow the CPU to enter C6 or C7 state, entering these
> states
Wolfram Sang Jan. 12, 2017, 6:45 p.m. UTC | #2
On Sun, Jan 08, 2017 at 02:44:24PM +0100, Hans de Goede wrote:
> 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>

Acked-by: Wolfram Sang <wsa@the-dreams.de>

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Patch
diff mbox

diff --git a/drivers/i2c/busses/i2c-designware-baytrail.c b/drivers/i2c/busses/i2c-designware-baytrail.c
index cf7a2a0..e8cf10a 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_unlock();
 }
 
@@ -82,6 +84,8 @@  static int baytrail_i2c_acquire(struct dw_i2c_dev *dev)
 		return 0;
 
 	iosf_mbi_punit_lock();
+	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