[rtc-linux] Re: [PATCH 2/2] ARM: dts: s3c-rtc: Use s3c6410-rtc instead of exynos3250-rtc

Krzysztof Kozlowski k.kozlowski at samsung.com
Tue Mar 31 01:56:15 PDT 2015

2015-03-31 10:12 GMT+02:00 Alexandre Belloni
<alexandre.belloni at free-electrons.com>:
> On 31/03/2015 at 09:47:15 +0900, Chanwoo Choi wrote :
>> > Are you absolutely sure that the exynos3250 IP is the same as the
>> > s3c6410 (I don't know much about the exynos family). The concern being
>> > that if at one point you have an errata on one or ther other, you will
>> > have to break the DT ABI by undoing this change.
>> >
>> > Note that I'm fine with it, I'm just asking.
>> I'm sure about exynos3250 RTC is same with S3C6410 RTC.
>> There was little different about that pevious S3C6410 RTC
>> don't consider to control the 'rtc_src' clk.
>> But, Javier's patch[1] add the '.needs_src_clk' to control the
>> 'rtc_src' clk. After merged this patch, there is no different part between
>> Exynos3250 RTC and S3C6410 RTC.
>> [1] 8792f7772f4f (drivers/rtc/rtc-s3c.c: add .needs_src_clk to s3c6410 RTC data)
> Yes, I saw that the software was handling both the same way, I was
> asking about the hardware side.

The hardware is exactly the same. Or maybe I should say: I could not
find any differences.

Best regards,

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