linux-kernel - Re: [PATCH] ARM: DRA7-evm: Enable SATA PHY and USB PHY power supplies

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Date:	Wed, 25 Jun 2014 17:27:44 -0500
From:	Nishanth Menon <nm@...com>
To:	Roger Quadros <rogerq@...com>, <tony@...mide.com>
CC:	<rnayak@...com>, <balbi@...com>, <nsekhar@...com>, <kishon@...com>,
	<george.cherian@...com>, <linux-omap@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] ARM: DRA7-evm: Enable SATA PHY and USB PHY power supplies

On 06/25/2014 07:56 AM, Roger Quadros wrote:
> The SATA and USB PHYs need the 1.8V and 3.3V supplies.
> The PHY drivers/framework don't yet support regulator
> supply so we have to keep these regulators always-on till
> then.
> 
> Signed-off-by: Roger Quadros <rogerq@...com>
> ---
>  arch/arm/boot/dts/dra7-evm.dts | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/dra7-evm.dts b/arch/arm/boot/dts/dra7-evm.dts
> index 4adc280..99a1f79 100644
> --- a/arch/arm/boot/dts/dra7-evm.dts
> +++ b/arch/arm/boot/dts/dra7-evm.dts
> @@ -241,6 +241,7 @@
>  					regulator-min-microvolt = <1800000>;
>  					regulator-max-microvolt = <1800000>;
>  					regulator-boot-on;
> +					regulator-always-on;
>  				};
>  
>  				ldo9_reg: ldo9 {
> @@ -266,6 +267,7 @@
>  					regulator-min-microvolt = <3300000>;
>  					regulator-max-microvolt = <3300000>;
>  					regulator-boot-on;
> +					regulator-always-on;
>  				};
>  			};
>  		};
> 

Why not fix phy driver/framework as needed? the trouble is people
always forget to remove always-on... who actually audits old logs and
fixes stuff back up?

-- 
Regards,
Nishanth Menon
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