linux-kernel - Re: [rtc-linux] Re: [PATCH v2 2/2] mfd: sec-core: Modify RTC compatible name of S2MPS13

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Message-ID: <20150326141812.GO5951@x1>
Date:	Thu, 26 Mar 2015 14:18:12 +0000
From:	Lee Jones <lee.jones@...aro.org>
To:	Krzysztof Kozlowski <k.kozlowski@...sung.com>
Cc:	rtc-linux@...glegroups.com, Sangbeom Kim <sbkim73@...sung.com>,
	Samuel Ortiz <sameo@...ux.intel.com>,
	Alessandro Zummo <a.zummo@...ertech.it>,
	linux-kernel@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
	Kyungmin Park <kyungmin.park@...sung.com>,
	Marek Szyprowski <m.szyprowski@...sung.com>,
	Chanwoo Choi <cw00.choi@...sung.com>
Subject: Re: [rtc-linux] Re: [PATCH v2 2/2] mfd: sec-core: Modify RTC
 compatible name of S2MPS13

On Tue, 24 Mar 2015, Krzysztof Kozlowski wrote:

> 2015-03-23 13:34 GMT+01:00 Lee Jones <lee.jones@...aro.org>:
> > On Tue, 17 Mar 2015, Krzysztof Kozlowski wrote:
> >
> >> From: Chanwoo Choi <cw00.choi@...sung.com>
> >>
> >> This patch modify the RTC compatible name of S2MPS13 because S2MPS13's RTC is
> >> equal to S2MPS14's RTC.
> >>
> >> Cc: Lee Jones <lee.jones@...aro.org>
> >> Suggested-by: Krzysztof Kozlowski <k.kozlowski@...sung.com>
> >> Signed-off-by: Chanwoo Choi <cw00.choi@...sung.com>
> >> Signed-off-by: Krzysztof Kozlowski <k.kozlowski@...sung.com>
> >>
> >> ---
> >>
> >> Changes since v1:
> >> 1. New patch.
> >> ---
> >>  drivers/mfd/sec-core.c | 2 +-
> >>  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > Applied, thanks.
> 
> Hi,
> 
> Sorry for the mess but we did this wrong.
> The S2MPS13 RTC is slightly different than S2MPS14 and that difference
> is important. It is embarrassing... but the difference was written
> small-print as a note in datasheet. Really. I found it after carefully
> comparing two PDFs. The impact of difference was not detected because
> of error in DTS for Exynos5433-based board.
> 
> This patch should be dropped (or reverted) and "s2mps13-rtc" should be
> used for S2MPS13 RTC mfd_cell. The RTC driver (rtc/rtxc-s5m) should
> have its own support for RTC which I will add in separate patch.
> 
> Lee, once again sorry for the mess. How would you like to proceed? Can
> you just drop this commit?

Patch removed -- panic averted.

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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