linux-kernel - Re: [rtc-linux] Re: [PATCH v3 5/5] drivers/rtc/rtc-s5m.c: add support for S2MPS15 RTC

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]

Date:	Wed, 28 Oct 2015 16:00:58 +0530
From:	Alim Akhtar <alim.akhtar@...sung.com>
To:	Alexandre Belloni <alexandre.belloni@...e-electrons.com>,
	Krzysztof Kozlowski <k.kozlowski@...sung.com>
Cc:	Mark Brown <broonie@...nel.org>, lee.jones@...aro.org,
	mturquette@...libre.com, linux-samsung-soc@...r.kernel.org,
	linux-clk@...r.kernel.org, rtc-linux@...glegroups.com,
	linux-kernel@...r.kernel.org
Subject: Re: [rtc-linux] Re: [PATCH v3 5/5] drivers/rtc/rtc-s5m.c: add support
 for S2MPS15 RTC

Hi Alexandre,

On 10/28/2015 03:18 PM, Alexandre Belloni wrote:
> On 28/10/2015 at 12:31:43 +0900, Krzysztof Kozlowski wrote :
>> The s2mps13 clock driver added new name and compatible... which was
>> probably totally unneeded (I missed that during review). We don't have
>> to make this as a rule...
>>
>> Since we do not have any data about future workarounds and the
>> differences then just follow Ockham's razor - use the same name and
>> compatible.
>>
>
> So you don't care about DT backward compatibility because when a
> workaround will be needed for one of the IPs, then you will have to
> update the old dtb to use it.
>
> Unless you are sure that the IP is the same, doing
>
> { "s2mps15-rtc",	S2MPS14X },
>
> is probably the best way to handle that. Note that I personally don't
> care about the DT ABI, I'm just pointing out what may happen ;)
>
Thats what my point is, anyway I am still looking into the fine prints 
of the s2mps15 and s2mps14 user manual, now I have found at least one 
difference in their one of the register bit, which might be a good 
reason to keep s2mps15-rtc device.
Will update the same in v4.
Thanks,

--
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/