ARM: dts: omap34xx & omap36xx: replace opp-v1 tables by opp-v2 for

With the driver installed, we can change the opp-v1 table format
to opp-v2.

In addition, move omap3 from whitelist to blacklist in cpufreq-dt-platdev
in the same patch, because doing either first breaks operation and
may make trouble in bisect.

We also can remove opp-v1 table for omap3-n950-n9 since its 1GHz
capability is now automatically detected.

We also fix a wrong OPP4 voltage for omap3430 which must be
0.6V + 54*12.5mV = 1275mV. Otherwise the twl4030 driver will reject
this OPP.

Note: the high speed OPPs that were not available in the opp-v1 tables
are tagged "turbo-mode;" which means they are not automatically
activated by the govenors or cpu-freq.

To enable you have to write

echo 1 >/sys/devices/system/cpu/cpufreq/boost

Note: to hard disable an OPP in a board.dts file use e.g.

&cpu0_opp_table: {
	/delete-node/ opp1g-1000000000;	/* do not use */
};

or alternatively:

&cpu0_opp_table: {
	opp1g-1000000000 {
		status = "disabled";	/* do not use */
	};
};

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Tested-by: Adam Ford <aford173@gmail.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>

1 files changed, 46 insertions, 8 deletions

diff --git a/arch/arm/boot/dts/omap36xx.dtsi b/arch/arm/boot/dts/omap36xx.dtsi
index 1e552f08f120..2fcd0c5d72ba 100644
--- a/arch/arm/boot/dts/omap36xx.dtsi
+++ b/arch/arm/boot/dts/omap36xx.dtsi
@@ -19,15 +19,53 @@
 	};
 
 	cpus {
-		/* OMAP3630/OMAP37xx 'standard device' variants OPP50 to OPP130 */
+		/* OMAP3630/OMAP37xx variants OPP50 to OPP130 and OPP1G */
 		cpu: cpu@0 {
-			operating-points = <
-				/* kHz    uV */
-				300000  1012500
-				600000  1200000
-				800000  1325000
-			>;
-			clock-latency = <300000>; /* From legacy driver */
+			operating-points-v2 = <&cpu0_opp_table>;
+
+			clock-latency = <300000>; /* From omap-cpufreq driver */
+		};
+	};
+
+	/* see Documentation/devicetree/bindings/opp/opp.txt */
+	cpu0_opp_table: opp-table {
+		compatible = "operating-points-v2-ti-cpu";
+		syscon = <&scm_conf>;
+
+		opp50-300000000 {
+			opp-hz = /bits/ 64 <300000000>;
+			/*
+			 * we currently only select the max voltage from table
+			 * Table 4-19 of the DM3730 Data sheet (SPRS685B)
+			 * Format is: <target min max>
+			 */
+			opp-microvolt = <1012500 1012500 1012500>;
+			/*
+			 * first value is silicon revision bit mask
+			 * second one is "speed binned" bit mask
+			 */
+			opp-supported-hw = <0xffffffff 3>;
+			opp-suspend;
+		};
+
+		opp100-600000000 {
+			opp-hz = /bits/ 64 <600000000>;
+			opp-microvolt = <1200000 1200000 1200000>;
+			opp-supported-hw = <0xffffffff 3>;
+		};
+
+		opp130-800000000 {
+			opp-hz = /bits/ 64 <800000000>;
+			opp-microvolt = <1325000 1325000 1325000>;
+			opp-supported-hw = <0xffffffff 3>;
+		};
+
+		opp1g-1000000000 {
+			opp-hz = /bits/ 64 <1000000000>;
+			opp-microvolt = <1375000 1375000 1375000>;
+			/* only on am/dm37x with speed-binned bit set */
+			opp-supported-hw = <0xffffffff 2>;
+			turbo-mode;
 		};
 	};