linux-kernel - [RFC v3 5/5] cpufreq:LAB:dts:trats2: Add DTS nodes for LAB governor

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Date:	Tue, 04 Mar 2014 11:27:32 +0100
From:	Lukasz Majewski <l.majewski@...sung.com>
To:	Viresh Kumar <viresh.kumar@...aro.org>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>
Cc:	"cpufreq@...r.kernel.org" <cpufreq@...r.kernel.org>,
	Linux PM list <linux-pm@...r.kernel.org>,
	Jonghwa Lee <jonghwa3.lee@...sung.com>,
	Lukasz Majewski <l.majewski@...sung.com>,
	Lukasz Majewski <l.majewski@...ess.pl>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
	Myungjoo Ham <myungjoo.ham@...sung.com>,
	Tomasz Figa <t.figa@...sung.com>,
	Thomas Abraham <ta.omasab@...il.com>, thomas.ab@...sung.com,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	linux-samsung-soc@...r.kernel.org
Subject: [RFC v3 5/5] cpufreq:LAB:dts:trats2: Add DTS nodes for LAB governor

Adds LAB attributes to proper CPU0 node.
The lab-num-of-states attribute shows how many compartments will be used.
The LAB code is prepared to be more fine grained.

The lab-ctrl-freq defines how the LAB governor will be controlled:
	- 0xFFFFFFFE 		- use the minimal frequency
	- 0xFFFFFFFF 		- enable boost
	- non zero 		- set the frequency specified
	- zero		- use ondemand to specify output frequency

Signed-off-by: Lukasz Majewski <l.majewski@...sung.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@...sung.com>
---
 arch/arm/boot/dts/exynos4412-trats2.dts |   29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/arch/arm/boot/dts/exynos4412-trats2.dts b/arch/arm/boot/dts/exynos4412-trats2.dts
index 4f851cc..9eeeb38 100644
--- a/arch/arm/boot/dts/exynos4412-trats2.dts
+++ b/arch/arm/boot/dts/exynos4412-trats2.dts
@@ -511,6 +511,35 @@
 		};
 	};
 
+	cpus {
+		cpu@0 {
+			compatible = "arm,cortex-a9";
+			device_type = "cpu";
+			lab-num-of-states = <5>;
+			lab-ctrl-freq = < 0          0          0          1300000    1200000
+					  0          0          0          0          1300000
+					  0          0          0          0          0xFFFFFFFF
+					  0          0          0          0xFFFFFFFF 0xFFFFFFFF
+					  0xFFFFFFFE 0xFFFFFFFE 0xFFFFFFFE 0xFFFFFFFE 0xFFFFFFFE
+				>;
+		};
+
+		cpu@1 {
+			compatible = "arm,cortex-a9";
+			device_type = "cpu";
+		};
+
+		cpu@2 {
+			compatible = "arm,cortex-a9";
+			device_type = "cpu";
+		};
+
+		cpu@3 {
+			compatible = "arm,cortex-a9";
+			device_type = "cpu";
+		};
+	};
+
 	camera {
 		pinctrl-0 = <&cam_port_b_clk_active>;
 		pinctrl-names = "default";
-- 
1.7.10.4

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