Re: [PATCH 4/7] i2c: designware-baytrail: Call pmic_bus_access_notifier_chain

[Andy Shevchenko <andriy.shevchenko@linux.intel.com>]

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

-- 
Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Intel Finland Oy