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: Stephen Boyd <sboyd@codeaurora.org>
Suggested-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/Documentation/devicetree/bindings/power/opp.txt b/Documentation/devicetree/bindings/power/opp.txt
index 0d5e7c97812161b1537e32ba6e689dcba8b1c89d..0cb44dc21f97ca7cfde5056ce7d44941d3439546 100644 (file)
--- a/Documentation/devicetree/bindings/power/opp.txt
+++ b/Documentation/devicetree/bindings/power/opp.txt
@@ -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>;
                        ...
                };
        };