[PATCH 1/3]: Support cpu frequency scaling and power management for iMX6SL

[John Tobias <john.tobias.ph@xxxxxxxxx>]

iMX6SL device tree doesn't have a configuration settings to enable the
frequency scaling and power management.

From: John Tobias <john.tobias.ph@xxxxxxxxx>


diff --git a/arch/arm/boot/dts/imx6sl.dtsi b/arch/arm/boot/dts/imx6sl.dtsi
index 28558f1..0ad2f6a 100644
--- a/arch/arm/boot/dts/imx6sl.dtsi
+++ b/arch/arm/boot/dts/imx6sl.dtsi
@@ -38,6 +38,19 @@
                        device_type = "cpu";
                        reg = <0x0>;
                        next-level-cache = <&L2>;
+                       operating-points = <
+                               /* kHz    uV */
+                               1000000 1275000
+                               792000  1150000
+                       >;
+                       clock-latency = <61036>; /* two CLK32 periods */
+                       clocks = <&clks IMX6SL_CLK_ARM>, <&clks
IMX6SL_CLK_PLL2_PFD2>, <&clks IMX6SL_CLK_STEP>,
+                                <&clks IMX6SL_CLK_PLL1_SW>, <&clks
IMX6SL_CLK_PLL1_SYS>;
+                       clock-names = "arm", "pll2_pfd2_396m", "step",
+                                     "pll1_sw", "pll1_sys";
+                       arm-supply = <&reg_arm>;
+                       pu-supply = <&reg_pu>;
+                       soc-supply = <&reg_soc>;
                };
        };
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