linux-kernel - Re: [PATCH RFT] regulator: da9055: Properly handle voltage range that doesn't start with 0 offset

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>] [day] [month] [year] [list]

Message-ID: <1353486782.1760.20.camel@dhruva>
Date:	Wed, 21 Nov 2012 14:03:02 +0530
From:	Ashish Jangam <ashish.jangam@...tcummins.com>
To:	AxelLin <axel.lin@...ics.com>
CC:	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	Liam Girdwood <lrg@...com>,
	Samuel Ortiz <sameo@...ux.intel.com>,
	David Dajun Chen <dchen@...semi.com>,
	<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH RFT] regulator: da9055: Properly handle voltage range
 that doesn't start with 0 offset

> This patch implements map_voltage and list_voltage callbacks to properly handle
> the case voltage range that doesn't start with 0 offset.
> 
> Now we adjust the selector in map_voltage() before calling set_voltage_sel().
> And return 0 in list_voltage() for invalid selectors.
> 
> With above change, we can remove da9055_regulator_set_voltage_bits function.
> 
> One tricky part is that we need adding voffset to n_voltages.
> Although for the cases "selector < voffset" are invalid, we need add voffset to
> n_voltage so regulator_list_voltage() won't fail while checking the boundary for
> selector before calling list_voltage callback.
> 
> Signed-off-by: Axel Lin <axel.lin@...ics.com>
> ---
> Hi Ashish,
>   I don't have this hardware to test this patch.
>   Can you help to review and test this patch?
> Thank you,
> Axel
This patch looks good to me.
I have tested this patch on SMDK6410 using the DA9055 evaluation board.
Tested-by: Ashish Jangam <ashish.jangam@...tcummins.com>


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/