Messages in this thread |  | | | Date | Tue, 11 Jan 2011 12:22:08 +0100 | | From | Samuel Ortiz <> | | Subject | Re: [PATCH v4 1/3] MFD MAX8998/LP3974: Support LP3974 RTC |
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Hi MyungJoo,
On Tue, Jan 04, 2011 at 02:17:39PM +0900, MyungJoo Ham wrote: > The first releases of LP3974 have a large delay in RTC registers, > which requires 2 seconds of delay after writing to a rtc register > (recommended by National Semiconductor's engineers) > before reading it. > > If "rtc_delay" field of the platform data is true, the rtc driver > assumes that such delays are required. Although we have not seen > LP3974s without requiring such delays, we assume that such LP3974s > will be released soon (or they have done so already) and they are > supported by "lp3974" without setting "rtc_delay" at the platform > data. > > This patch adds delays with msleep when writing values to RTC registers > if the platform data has rtc_delay set. Patch applied, many thanks.
Cheers, Samuel.
-- Intel Open Source Technology Centre http://oss.intel.com/
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