linux-kernel - Re: [PATCH v2 1/2] arm: dts: am4372: let boards enable RTC and Watchdog

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Date:	Wed, 18 Jun 2014 16:51:43 -0500
From:	Felipe Balbi <balbi@...com>
To:	Nishanth Menon <nm@...com>
CC:	<balbi@...com>, <devicetree@...r.kernel.org>,
	<linux@....linux.org.uk>, Tony Lindgren <tony@...mide.com>,
	Rajendra Nayak <rnayak@...com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	<r.sricharan@...com>, <robh+dt@...nel.org>,
	Benoit Cousson <bcousson@...libre.com>, <galak@...eaurora.org>,
	Linux OMAP Mailing List <linux-omap@...r.kernel.org>,
	Linux ARM Kernel Mailing List 
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v2 1/2] arm: dts: am4372: let boards enable RTC and
 Watchdog

Hi,

On Wed, Jun 18, 2014 at 04:43:28PM -0500, Nishanth Menon wrote:
> On 06/18/2014 02:25 PM, Felipe Balbi wrote:
> >Hi,
> >
> >On Wed, Jun 18, 2014 at 10:55:35AM -0500, Nishanth Menon wrote:
> >>$subject - ARM: dts:
> >>
> >>On 06/18/2014 10:43 AM, Felipe Balbi wrote:
> >>>by providing phandles to rtc and wdt nodes, we can
> >>>let boards enable rtc and wdt as necessary.
> >>>
> >>>Signed-off-by: Felipe Balbi <balbi@...com>
> >>>---
> >>>  arch/arm/boot/dts/am4372.dtsi | 4 ++--
> >>>  1 file changed, 2 insertions(+), 2 deletions(-)
> >>>
> >>>diff --git a/arch/arm/boot/dts/am4372.dtsi b/arch/arm/boot/dts/am4372.dtsi
> >>>index 49fa596..e3830d4 100644
> >>>--- a/arch/arm/boot/dts/am4372.dtsi
> >>>+++ b/arch/arm/boot/dts/am4372.dtsi
> >>>@@ -270,7 +270,7 @@
> >>>  			ti,hwmods = "counter_32k";
> >>>  		};
> >>>
> >>>-		rtc@...3e000 {
> >>>+		rtc: rtc@...3e000 {
> >>>  			compatible = "ti,am4372-rtc","ti,da830-rtc";
> >>>  			reg = <0x44e3e000 0x1000>;
> >>>  			interrupts = <GIC_SPI 75 IRQ_TYPE_LEVEL_HIGH
> >>>@@ -279,7 +279,7 @@
> >>>  			status = "disabled";
> >>>  		};
> >>>
> >>>-		wdt@...35000 {
> >>>+		wdt: wdt@...35000 {
> >>>  			compatible = "ti,am4372-wdt","ti,omap3-wdt";
> >>>  			reg = <0x44e35000 0x1000>;
> >>>  			interrupts = <GIC_SPI 91 IRQ_TYPE_LEVEL_HIGH>;
> >>>
> >>we might want to fix up any other similar nodes in dtsi as well, no?
> >>
> >>examples:
> >>cpu@0
> >
> >and why would you want boards to mess with the cpu node ?
> >
> cpu-supply = <&regulator>;
> 
> for cpufreq.

good point, but does thqt even work with AM437x devices in mainline?

-- 
balbi

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