linux-kernel - Re: [PATCH] RTC v3020 fixes

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Date:	Wed, 15 Aug 2007 08:59:53 -0400
From:	Raphaël Assénat <raph@...com>
To:	Mike Rapoport <mike@...pulab.co.il>
CC:	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] RTC v3020 fixes

Mike Rapoport wrote:
> Fix off-by-one in month calculations
> Add delay for bus accesses to satisfy Tw > 500ns
> 
*snip*
> @@ -135,7 +140,7 @@ static int v3020_set_time(struct device *dev, struct 
> rtc_time *dt)
>      v3020_set_reg(chip, V3020_MINUTES,     BIN2BCD(dt->tm_min));
>      v3020_set_reg(chip, V3020_HOURS,     BIN2BCD(dt->tm_hour));
>      v3020_set_reg(chip, V3020_MONTH_DAY,    BIN2BCD(dt->tm_mday));
> -    v3020_set_reg(chip, V3020_MONTH,     BIN2BCD(dt->tm_mon));
> +    v3020_set_reg(chip, V3020_MONTH,     BIN2BCD(dt->tm_mon) + 1);

This should be BIN2BCD(dt->tm_mon + 1)) instead. Otherwise, in october (month 
9), the final value will be 0xa instead of 0x10.

Other than that, the patch looks fine to me. You can add
Acked-by: Raphael Assenat <raph@...com> to the updated patch.

Please add Alessandro Zummo <a.zummo@...ertech.it> in the CC list to make sure 
he sees it.

Best regards,
Raphaël Assénat
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