linux-kernel - [PATCH v3 0/2] rtc: omap: update AM335x rtc ip revision

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Message-ID: <1376653017-21935-1-git-send-email-gururaja.hebbar@ti.com>
Date:	Fri, 16 Aug 2013 17:06:55 +0530
From:	"Hebbar, Gururaja" <gururaja.hebbar@...com>
To:	<akpm@...ux-foundation.org>, <khilman@...aro.org>,
	<tony@...mide.com>, <bcousson@...libre.com>
CC:	<rob.herring@...xeda.com>, <mark.rutland@....com>,
	<a.zummo@...ertech.it>, <rob@...dley.net>,
	<grant.likely@...aro.org>, <rtc-linux@...glegroups.com>,
	<linux-omap@...r.kernel.org>, <devicetree@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<davinci-linux-open-source@...ux.davincidsp.com>,
	<sudhakar.raj@...com>, <gururaja.hebbar@...com>
Subject: [PATCH v3 0/2] rtc: omap: update AM335x rtc ip revision

The syntax of compatible property in DT is to mention the Most specific
match to most generic match.

Since AM335x is the platform with latest IP revision, add it 1st in
the device id table.

This way, we can add new matching compatible as 1st and maintain old
compatible string for backwards compatibility.

ex:
	compatible = "ti,am3352-rtc", "ti,da830-rtc";

Also, update am335x .dtsi file (am33xx.dtsi) as above.

Note:
This is a part of previously submitted patch-set [1]. Out of 4 patches,
3 was accepted and 1 got an acceptable NAK. Hence resubmitting only the
rejected + updated changes.

Changes in V3:
	- As per Mark Rutland's suggestion [2], maintain old compatible
	  string and add the new matching string as the 1st compatible.

Changes in V2:
	- Coding style corrections (remove extra space, use lower case
	  for hex numbers
	- use prefix ARM: for commit subject keeping with arch/arm
	  convention)
	- use "[AM/am]3352" instead of "[AM/am]335x" to keep the all
	  usages in sync.
	- Use index defined for struct members so they remain in sync
	- Add new compatible to existing one so that when driver
	  supports enhanced features of hardware, they are available
	  to the user else the basic functionality still works

[2]
https://lkml.org/lkml/2013/7/3/74
[1]
https://lkml.org/lkml/2013/8/1/442

Hebbar Gururaja (1):
  ARM: dts: AM33XX: update rtc node compatibility

Hebbar, Gururaja (1):
  rtc: omap: update of_device_id to reflect latest ip revisions

 arch/arm/boot/dts/am33xx.dtsi |    2 +-
 drivers/rtc/rtc-omap.c        |    6 +++---
 2 files changed, 4 insertions(+), 4 deletions(-)

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