From: Viresh Kumar <viresh.kumar@linaro.org>
To: Rafael Wysocki <rjw@rjwysocki.net>, sboyd@codeaurora.org
Cc: linaro-kernel@lists.linaro.org, linux-pm@vger.kernel.org,
rob.herring@linaro.org, arnd.bergmann@linaro.org, nm@ti.com,
broonie@kernel.org, mturquette@baylibre.com,
Sudeep.Holla@arm.com, viswanath.puttagunta@linaro.org,
l.stach@pengutronix.de, thomas.petazzoni@free-electrons.com,
linux-arm-kernel@lists.infradead.org, ta.omasab@gmail.com,
kesavan.abhilash@gmail.com, khilman@linaro.org,
santosh.shilimkar@oracle.com, b.zolnierkie@samsung.com,
Viresh Kumar <viresh.kumar@linaro.org>,
devicetree@vger.kernel.org,
Ian Campbell <ijc+devicetree@hellion.org.uk>,
Kumar Gala <galak@codeaurora.org>,
open list <linux-kernel@vger.kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Pawel Moll <pawel.moll@arm.com>,
"Rafael J. Wysocki" <rafael.j.wysocki@intel.com>,
Rob Herring <robh+dt@kernel.org>
Subject: [PATCH V3 01/16] PM / OPP: Update bindings to make opp-hz a 64 bit value
Date: Wed, 29 Jul 2015 16:22:56 +0530 [thread overview]
Message-ID: <f87ca786bca8abce6261dbd79a34218550355684.1438166099.git.viresh.kumar@linaro.org> (raw)
In-Reply-To: <cover.1438166099.git.viresh.kumar@linaro.org>
In-Reply-To: <cover.1438166099.git.viresh.kumar@linaro.org>
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.
Cc: Rob Herring <rob.herring@linaro.org>
Cc: devicetree@vger.kernel.org
Suggested-by: Stephen Boyd <sboyd@codeaurora.org>
Suggested-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
Documentation/devicetree/bindings/power/opp.txt | 40 ++++++++++++-------------
1 file changed, 20 insertions(+), 20 deletions(-)
diff --git a/Documentation/devicetree/bindings/power/opp.txt b/Documentation/devicetree/bindings/power/opp.txt
index 0d5e7c978121..0cb44dc21f97 100644
--- 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>;
...
};
};
--
2.4.0
next parent reply other threads:[~2015-07-29 10:52 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <cover.1438166099.git.viresh.kumar@linaro.org>
2015-07-29 10:52 ` Viresh Kumar [this message]
[not found] ` <f87ca786bca8abce6261dbd79a34218550355684.1438166099.git.viresh.kumar-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2015-07-30 13:23 ` [PATCH V3 01/16] PM / OPP: Update bindings to make opp-hz a 64 bit value Rob Herring
2015-07-29 10:52 ` [PATCH V3 02/16] PM / OPP: Create a directory for opp bindings Viresh Kumar
2015-07-30 13:18 ` Rob Herring
2015-07-30 13:49 ` Viresh Kumar
2015-07-30 16:24 ` Rob Herring
2015-07-30 16:52 ` Viresh Kumar
2015-07-30 16:57 ` [PATCH V3 resend] " Viresh Kumar
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