Re: Patch "ARM: dts: sunxi: Raise minimum CPU voltage for sun7i-a20 to meet SoC specifications" has been added to the 4.2-stable tree

[Timo Sigurdsson <public_timo.s@silentcreek.de>]

Hi Greg,

Am Dienstag, den 27.10.2015, 05:42 +0900 schrieb Greg KH:
> On Mon, Oct 26, 2015 at 10:12:24AM +0100, Timo Sigurdsson wrote:
> > Hi Greg,
> > 
> > I don't know your exact workflow, but is it possible that you missed this patch
> > to apply it to the 4.1 tree? IIRC Maxime marked this as "4.0+" when he forwarded
> > it to stable. But while it went into 4.2.4, it's not in 4.1.11 or 4.1.12-rc1.
> 
> 
> Does it apply to 4.1-stable?  Maybe I dropped it because it didn't do
> so, please test it and see...
> 
> thanks,
> 
> greg k-h

Oops, you're right. The patch didn't apply. Here's a backported version for
the linux-4.1.y tree, tested on top of 4.1.12.

Regards,

Timo

--
>From a2f5b3a592d5d86b4579fc03a1c8fecf74f26e4c Mon Sep 17 00:00:00 2001
From: Timo Sigurdsson <public_timo.s@silentcreek.de>
Date: Tue, 27 Oct 2015 21:09:28 +0100
Subject: [PATCH] ARM: dts: sunxi: Raise minimum CPU voltage for sun7i-a20 to
 meet SoC specifications

Backport of commit eaeef1ad9b6e ("ARM: dts: sunxi: Raise minimum CPU
voltage for sun7i-a20 to meet SoC specifications") upstream.

sun7i-a20.dtsi contains a cpufreq operating point at 0.9 volts. The minimum
CPU voltage for the Allwinner A20 SoC, however, is 1.0 volts. Thus, raise
the voltage for the lowest operating point to 1.0 volts in order to stay
within the SoC specifications. It is an undervolted setting that isn't
stable across all SoCs and boards out there.

Fixes: d96b7161916f ("ARM: dts: sun7i: Add cpu clock reference and
 operating points to dtsi")
Signed-off-by: Timo Sigurdsson <public_timo.s@silentcreek.de>
Acked-by: Iain Paton <ipaton0@gmail.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
---
 arch/arm/boot/dts/sun7i-a20.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/sun7i-a20.dtsi b/arch/arm/boot/dts/sun7i-a20.dtsi
index 2b4847c..fa36571 100644
--- a/arch/arm/boot/dts/sun7i-a20.dtsi
+++ b/arch/arm/boot/dts/sun7i-a20.dtsi
@@ -111,7 +111,7 @@
 				720000  1200000
 				528000  1100000
 				312000  1000000
-				144000  900000
+				144000  1000000
 				>;
 			#cooling-cells = <2>;
 			cooling-min-level = <0>;
-- 
2.1.4