linux-kernel - Re: [PATCH RFT] regulator: mp5416: Fix output discharge enable bit for LDOs

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <33fe095a-4aab-fe8a-bb5e-77050ffa0551@gmail.com>
Date:   Fri, 14 Feb 2020 22:16:47 +0100
From:   saravanan sekar <sravanhome@...il.com>
To:     Axel Lin <axel.lin@...ics.com>, Mark Brown <broonie@...nel.org>
Cc:     Liam Girdwood <lgirdwood@...il.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH RFT] regulator: mp5416: Fix output discharge enable bit
 for LDOs


On 12/02/20 4:02 pm, Axel Lin wrote:
> The .active_discharge_on/.active_discharge_mask settings does not match
> the datasheet, fix it.
>
> Signed-off-by: Axel Lin <axel.lin@...ics.com>
> ---
> Hi Saravanan,
> I don't have the h/w to test, please help review and test this patch.

Thanks for pointing out, I have tested this patch and works as expected.

>
> Thanks,
> Axel
>
>   drivers/regulator/mp5416.c | 14 +++++++-------
>   1 file changed, 7 insertions(+), 7 deletions(-)
>
> diff --git a/drivers/regulator/mp5416.c b/drivers/regulator/mp5416.c
> index 7954ad17249b..67ce1b52a1a1 100644
> --- a/drivers/regulator/mp5416.c
> +++ b/drivers/regulator/mp5416.c
> @@ -73,7 +73,7 @@
>   		.owner			= THIS_MODULE,			\
>   	}
>   
> -#define MP5416LDO(_name, _id)						\
> +#define MP5416LDO(_name, _id, _dval)					\
>   	[MP5416_LDO ## _id] = {						\
>   		.id = MP5416_LDO ## _id,				\
>   		.name = _name,						\
> @@ -87,9 +87,9 @@
>   		.vsel_mask = MP5416_MASK_VSET,				\
>   		.enable_reg = MP5416_REG_LDO ##_id,			\
>   		.enable_mask = MP5416_REGULATOR_EN,			\
> -		.active_discharge_on	= BIT(_id),			\
> +		.active_discharge_on	= _dval,			\
>   		.active_discharge_reg	= MP5416_REG_CTL2,		\
> -		.active_discharge_mask	= BIT(_id),			\
> +		.active_discharge_mask	= _dval,			\
>   		.owner			= THIS_MODULE,			\
>   	}
>   
> @@ -155,10 +155,10 @@ static struct regulator_desc mp5416_regulators_desc[MP5416_MAX_REGULATORS] = {
>   	MP5416BUCK("buck2", 2, mp5416_I_limits2, MP5416_REG_CTL1, BIT(1), 2),
>   	MP5416BUCK("buck3", 3, mp5416_I_limits1, MP5416_REG_CTL1, BIT(2), 1),
>   	MP5416BUCK("buck4", 4, mp5416_I_limits2, MP5416_REG_CTL2, BIT(5), 2),
> -	MP5416LDO("ldo1", 1),
> -	MP5416LDO("ldo2", 2),
> -	MP5416LDO("ldo3", 3),
> -	MP5416LDO("ldo4", 4),
> +	MP5416LDO("ldo1", 1, BIT(4)),
> +	MP5416LDO("ldo2", 2, BIT(3)),
> +	MP5416LDO("ldo3", 3, BIT(2)),
> +	MP5416LDO("ldo4", 4, BIT(1)),
>   };
>   
>   /*