cpufreq:LAB:dts:trats2: Add attributes necessary for correct LAB operation

Two extra attributes have been added. The "lab-num-of-states" describes how
many ranges will be used during LAB operation. Now the span of it equals to
20 (100 / 5).
The lab-ctrl-freq attribute maps number of idle CPUs and workload (from
scheduler) to LAB operations.

It is possible to specify exact freq (e.g. 1300000), enable boost
(e.g. 0xFFFFFFFF), set frequency to minimum (0xFFFFFFFE) or rely on
ONDEMAND governor to find suitable frequency.

Change-Id: I0ea6ffd8626aded5bed34166c59b9d34278feef2
Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>

diff --git a/arch/arm/boot/dts/exynos4412-trats2.dts b/arch/arm/boot/dts/exynos4412-trats2.dts
index 7068328..f25a37f 100644 (file)
--- a/arch/arm/boot/dts/exynos4412-trats2.dts
+++ b/arch/arm/boot/dts/exynos4412-trats2.dts
@@ -1349,6 +1349,13 @@
                             900000 800000 700000 600000 500000 400000 300000
                             200000>;
                boost_freq = <1500000>;
+               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
+                               >;
                vdd_arm-supply = <&buck2_reg>;
                status = "okay";
        };