Thread (13 messages) flat view 13 messages, 3 authors, 2014-09-15

[PATCH RESEND v9 5/5] rtc: Add driver for Maxim 77802 PMIC Real-Time-Clock

From: Javier Martinez Canillas <hidden>
Date: 2014-09-15 14:07:51
Also in: linux-samsung-soc, lkml

Hello Andrew,

On 09/13/2014 12:13 AM, Andrew Morton wrote:
On Fri, 12 Sep 2014 10:17:43 +0200 Javier Martinez Canillas [off-list ref] wrote:
quoted
The MAX7802 PMIC has a Real-Time-Clock (RTC) with two alarms.
This patch adds support for the RTC and is based on a driver
added by Simon Glass to the Chrome OS kernel 3.8 tree.

Signed-off-by: Javier Martinez Canillas <redacted>
Reviewed-by: Krzysztof Kozlowski <redacted>
Would it be appropriate to gather Simon's signoff?
I don't know. The original driver written by Simon supported 2 devices:
max77686 and max77802. I split the max77802 bits and addressed all the issues
pointed out on early revisions so even when Simon is mentioned as the
MODULE_AUTHOR(), I didn't know if he would like his s-o-b to remain in the
patch since it was quite different than the original one from which was based.
quoted
+static inline int max77802_rtc_calculate_wday(u8 shifted)
+{
+	int counter = -1;
+
+	while (shifted) {
+		shifted >>= 1;
+		counter++;
+	}
Can't use log2() or similar?
Yes, ffs() - 1 can be used instead of this function indeed.

I see that you already included this patch to your -mm tree [0]. Does it mean
that I've to send a follow-up patch on top of this to remove this function or
should I send a new version of this patch?

Best regards,
Javier

[0]:
http://ozlabs.org/~akpm/mmots/broken-out/rtc-add-driver-for-maxim-77802-pmic-real-time-clock.patch
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