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Commit ba4539ff authored by Viresh Kumar's avatar Viresh Kumar Committed by Rafael J. Wysocki
Browse files

PM / OPP: Update bindings to make opp-hz a 64 bit value 



With a 32 bit value, the maximum frequency that the bindings can
support is ~ 4 GHz. And that might fall short of what newer systems may
have.

Allow opp-hz to be a 64 bit big-endian value.

Suggested-by: default avatarStephen Boyd <sboyd@codeaurora.org>
Suggested-by: default avatarBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: default avatarViresh Kumar <viresh.kumar@linaro.org>
Acked-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent 74d33293

Documentation/devicetree/bindings/power/opp.txt

+20 −20
Original line number Diff line number Diff line
@@ -88,7 +88,7 @@ This defines voltage-current-frequency combinations along with other related 
properties.



Required properties:

- opp-hz: Frequency in Hz

- opp-hz: Frequency in Hz, expressed as a 64-bit big-endian integer.



Optional properties:

- opp-microvolt: voltage in micro Volts.
@@ -158,20 +158,20 @@ Example 1: Single cluster Dual-core ARM cortex A9, switch DVFS states together. 
		opp-shared;



		opp00 {

			opp-hz = <1000000000>;

			opp-hz = /bits/ 64 <1000000000>;

			opp-microvolt = <970000 975000 985000>;

			opp-microamp = <70000>;

			clock-latency-ns = <300000>;

			opp-suspend;

		};

		opp01 {

			opp-hz = <1100000000>;

			opp-hz = /bits/ 64 <1100000000>;

			opp-microvolt = <980000 1000000 1010000>;

			opp-microamp = <80000>;

			clock-latency-ns = <310000>;

		};

		opp02 {

			opp-hz = <1200000000>;

			opp-hz = /bits/ 64 <1200000000>;

			opp-microvolt = <1025000>;

			clock-latency-ns = <290000>;

			turbo-mode;
@@ -237,20 +237,20 @@ independently. 
		 */



		opp00 {

			opp-hz = <1000000000>;

			opp-hz = /bits/ 64 <1000000000>;

			opp-microvolt = <970000 975000 985000>;

			opp-microamp = <70000>;

			clock-latency-ns = <300000>;

			opp-suspend;

		};

		opp01 {

			opp-hz = <1100000000>;

			opp-hz = /bits/ 64 <1100000000>;

			opp-microvolt = <980000 1000000 1010000>;

			opp-microamp = <80000>;

			clock-latency-ns = <310000>;

		};

		opp02 {

			opp-hz = <1200000000>;

			opp-hz = /bits/ 64 <1200000000>;

			opp-microvolt = <1025000>;

			opp-microamp = <90000;

			lock-latency-ns = <290000>;
@@ -313,20 +313,20 @@ DVFS state together. 
		opp-shared;



		opp00 {

			opp-hz = <1000000000>;

			opp-hz = /bits/ 64 <1000000000>;

			opp-microvolt = <970000 975000 985000>;

			opp-microamp = <70000>;

			clock-latency-ns = <300000>;

			opp-suspend;

		};

		opp01 {

			opp-hz = <1100000000>;

			opp-hz = /bits/ 64 <1100000000>;

			opp-microvolt = <980000 1000000 1010000>;

			opp-microamp = <80000>;

			clock-latency-ns = <310000>;

		};

		opp02 {

			opp-hz = <1200000000>;

			opp-hz = /bits/ 64 <1200000000>;

			opp-microvolt = <1025000>;

			opp-microamp = <90000>;

			clock-latency-ns = <290000>;
@@ -339,20 +339,20 @@ DVFS state together. 
		opp-shared;



		opp10 {

			opp-hz = <1300000000>;

			opp-hz = /bits/ 64 <1300000000>;

			opp-microvolt = <1045000 1050000 1055000>;

			opp-microamp = <95000>;

			clock-latency-ns = <400000>;

			opp-suspend;

		};

		opp11 {

			opp-hz = <1400000000>;

			opp-hz = /bits/ 64 <1400000000>;

			opp-microvolt = <1075000>;

			opp-microamp = <100000>;

			clock-latency-ns = <400000>;

		};

		opp12 {

			opp-hz = <1500000000>;

			opp-hz = /bits/ 64 <1500000000>;

			opp-microvolt = <1010000 1100000 1110000>;

			opp-microamp = <95000>;

			clock-latency-ns = <400000>;
@@ -379,7 +379,7 @@ Example 4: Handling multiple regulators 
		opp-shared;



		opp00 {

			opp-hz = <1000000000>;

			opp-hz = /bits/ 64 <1000000000>;

			opp-microvolt = <970000>, /* Supply 0 */

					<960000>, /* Supply 1 */

					<960000>; /* Supply 2 */
@@ -392,7 +392,7 @@ Example 4: Handling multiple regulators 
		/* OR */



		opp00 {

			opp-hz = <1000000000>;

			opp-hz = /bits/ 64 <1000000000>;

			opp-microvolt = <970000 975000 985000>, /* Supply 0 */

					<960000 965000 975000>, /* Supply 1 */

					<960000 965000 975000>; /* Supply 2 */
@@ -405,7 +405,7 @@ Example 4: Handling multiple regulators 
		/* OR */



		opp00 {

			opp-hz = <1000000000>;

			opp-hz = /bits/ 64 <1000000000>;

			opp-microvolt = <970000 975000 985000>, /* Supply 0 */

					<960000 965000 975000>, /* Supply 1 */

					<960000 965000 975000>; /* Supply 2 */
@@ -437,12 +437,12 @@ Example 5: Multiple OPP tables 
		opp-shared;



		opp00 {

			opp-hz = <600000000>;

			opp-hz = /bits/ 64 <600000000>;

			...

		};



		opp01 {

			opp-hz = <800000000>;

			opp-hz = /bits/ 64 <800000000>;

			...

		};

	};
@@ -453,12 +453,12 @@ Example 5: Multiple OPP tables 
		opp-shared;



		opp10 {

			opp-hz = <1000000000>;

			opp-hz = /bits/ 64 <1000000000>;

			...

		};



		opp11 {

			opp-hz = <1100000000>;

			opp-hz = /bits/ 64 <1100000000>;

			...

		};

	};