From: Timo Sigurdsson <public_timo.s@silentcreek.de>
Date: Tue, 4 Aug 2015 21:08:01 +0000 (+0200)
Subject: ARM: dts: sunxi: Raise minimum CPU voltage for sun7i-a20 to meet SoC specifications
X-Git-Tag: v4.2.4~213
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7bff4cf150f415aaa5587c1f0d9b8b6f9b3011e2;p=thirdparty%2Fkernel%2Fstable.git

ARM: dts: sunxi: Raise minimum CPU voltage for sun7i-a20 to meet SoC specifications

commit eaeef1ad9b6ea6df1d1220c254d9563da60cb9d1 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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/arch/arm/boot/dts/sun7i-a20.dtsi b/arch/arm/boot/dts/sun7i-a20.dtsi
index 6a63f30c9a699..f5f384c043356 100644
--- a/arch/arm/boot/dts/sun7i-a20.dtsi
+++ b/arch/arm/boot/dts/sun7i-a20.dtsi
@@ -107,7 +107,7 @@
 				720000	1200000
 				528000	1100000
 				312000	1000000
-				144000	900000
+				144000	1000000
 				>;
 			#cooling-cells = <2>;
 			cooling-min-level = <0>;