linux-kernel - Re: [PATCH 2/2] mfd: twl4030-power: use 'ti,system-power-controller' as alternative way to support system power off

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Date:	Mon, 8 Sep 2014 17:01:26 -0700
From:	Tony Lindgren <tony@...mide.com>
To:	Nishanth Menon <nm@...com>
Cc:	Lee Jones <lee.jones@...aro.org>,
	Samuel Ortiz <sameo@...ux.intel.com>,
	linux-omap@...r.kernel.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] mfd: twl4030-power: use 'ti,system-power-controller'
 as alternative way to support system power off

* Nishanth Menon <nm@...com> [140903 12:07]:
> ti,system-power-controller is more or less the standard way of
> indicating that the PMIC is the system wide power controller and hence
> may be used to switch off the system. Almost ALL TI PMIC drivers and
> many Maxim PMIC drivers follow the same style.
> 
> So support 'ti,system-power-controller' in addition to the usual
> 'ti,use_poweroff' to indicate that the PMIC instance has control for
> switching off the system.
> 
> Signed-off-by: Nishanth Menon <nm@...com>

Acked-by: Tony Lindgren <tony@...mide.com>

> ---
>  drivers/mfd/twl4030-power.c |    3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/mfd/twl4030-power.c b/drivers/mfd/twl4030-power.c
> index 3bc969a..1c129ba 100644
> --- a/drivers/mfd/twl4030-power.c
> +++ b/drivers/mfd/twl4030-power.c
> @@ -627,6 +627,9 @@ static bool twl4030_power_use_poweroff(const struct twl4030_power_data *pdata,
>  	if (pdata && pdata->use_poweroff)
>  		return true;
>  
> +	if (of_property_read_bool(node, "ti,system-power-controller"))
> +		return true;
> +
>  	if (of_property_read_bool(node, "ti,use_poweroff"))
>  		return true;
>  
> -- 
> 1.7.9.5
> 
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