linux-kernel - Re: [PATCH RFT] regulator: ab8500: Fix voltage_shift setting for AB8540_LDO

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Message-ID: <516BC473.2070907@stericsson.com>
Date:	Mon, 15 Apr 2013 11:12:19 +0200
From:	Bengt Jönsson <bengt.g.jonsson@...ricsson.com>
To:	Axel Lin <axel.lin@...ics.com>
Cc:	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	Lee Jones <lee.jones@...aro.org>,
	Yvan FILLION <yvan.fillion@...ricsson.com>,
	Liam Girdwood <lgirdwood@...il.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH RFT] regulator: ab8500: Fix voltage_shift setting for
 AB8540_LDO_DMIC

On 04/15/2013 10:36 AM, Axel Lin wrote:
> The voltage_mask is 0xc0, thus we need to set voltage_shift = 6 to get correct
> selector in get_voltage_sel and set_voltage_sel.
>
> Signed-off-by: Axel Lin <axel.lin@...ics.com>
The patch is correct. Voltage selection is done with 0xc0.

Acked-by: Bengt Jonsson <bengt.g.jonsson@...ricsson.com>
> ---
> Hi Bengt,
> I don't have the datasheet. Can you confirm if this fix is correct?
>
> BTW, can you also review a couple patches for ab8500 and ab8500-ext I sent a few
> days ago? I ask this because now I have more patches that may depend on previous
> patches.
>
> Thanks,
> Axel
>
>   drivers/regulator/ab8500.c |    1 +
>   1 file changed, 1 insertion(+)
>
> diff --git a/drivers/regulator/ab8500.c b/drivers/regulator/ab8500.c
> index b81ff04..0a62ef9 100644
> --- a/drivers/regulator/ab8500.c
> +++ b/drivers/regulator/ab8500.c
> @@ -1729,6 +1729,7 @@ static struct ab8500_regulator_info
>   		.voltage_bank		= 0x03,
>   		.voltage_reg		= 0x83,
>   		.voltage_mask		= 0xc0,
> +		.voltage_shift		= 6,
>   	},
>   
>   	/*

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