* [PATCH] dt-bindings: cpufreq: remove stale arm_big_little_dt entry
@ 2018-11-07 17:40 Sudeep Holla
2018-11-08 4:45 ` Viresh Kumar
0 siblings, 1 reply; 2+ messages in thread
From: Sudeep Holla @ 2018-11-07 17:40 UTC (permalink / raw)
To: linux-pm, devicetree
Cc: Sudeep Holla, Rafael J. Wysocki, Viresh Kumar, Rob Herring
Most of the ARM platforms used v2 OPP bindings to support big-little
configurations. This arm_big_little_dt binding is incomplete and was
never used.
Commit f174e49e4906 ("cpufreq: remove unused arm_big_little_dt driver")
removes the driver supporting this binding. However the binding was left
unnoticed, so let's get rid of it now.
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Rob Herring <robh+dt@kernel.org>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
---
.../bindings/cpufreq/arm_big_little_dt.txt | 65 -------------------
1 file changed, 65 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/cpufreq/arm_big_little_dt.txt
Hi,
For some reason, I didn't expect the driver to have an entry in the
DT bindings and didn't look at it before. While I was searching references
to big-little that can be removed, I spotted this. Sorry for that.
Regards,
Sudeep
diff --git a/Documentation/devicetree/bindings/cpufreq/arm_big_little_dt.txt b/Documentation/devicetree/bindings/cpufreq/arm_big_little_dt.txt
deleted file mode 100644
index 2aa06ac0fac5..000000000000
--- a/Documentation/devicetree/bindings/cpufreq/arm_big_little_dt.txt
+++ /dev/null
@@ -1,65 +0,0 @@
-Generic ARM big LITTLE cpufreq driver's DT glue
------------------------------------------------
-
-This is DT specific glue layer for generic cpufreq driver for big LITTLE
-systems.
-
-Both required and optional properties listed below must be defined
-under node /cpus/cpu@x. Where x is the first cpu inside a cluster.
-
-FIXME: Cpus should boot in the order specified in DT and all cpus for a cluster
-must be present contiguously. Generic DT driver will check only node 'x' for
-cpu:x.
-
-Required properties:
-- operating-points: Refer to Documentation/devicetree/bindings/opp/opp.txt
- for details
-
-Optional properties:
-- clock-latency: Specify the possible maximum transition latency for clock,
- in unit of nanoseconds.
-
-Examples:
-
-cpus {
- #address-cells = <1>;
- #size-cells = <0>;
-
- cpu@0 {
- compatible = "arm,cortex-a15";
- reg = <0>;
- next-level-cache = <&L2>;
- operating-points = <
- /* kHz uV */
- 792000 1100000
- 396000 950000
- 198000 850000
- >;
- clock-latency = <61036>; /* two CLK32 periods */
- };
-
- cpu@1 {
- compatible = "arm,cortex-a15";
- reg = <1>;
- next-level-cache = <&L2>;
- };
-
- cpu@100 {
- compatible = "arm,cortex-a7";
- reg = <100>;
- next-level-cache = <&L2>;
- operating-points = <
- /* kHz uV */
- 792000 950000
- 396000 750000
- 198000 450000
- >;
- clock-latency = <61036>; /* two CLK32 periods */
- };
-
- cpu@101 {
- compatible = "arm,cortex-a7";
- reg = <101>;
- next-level-cache = <&L2>;
- };
-};
--
2.17.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] dt-bindings: cpufreq: remove stale arm_big_little_dt entry
2018-11-07 17:40 [PATCH] dt-bindings: cpufreq: remove stale arm_big_little_dt entry Sudeep Holla
@ 2018-11-08 4:45 ` Viresh Kumar
0 siblings, 0 replies; 2+ messages in thread
From: Viresh Kumar @ 2018-11-08 4:45 UTC (permalink / raw)
To: Sudeep Holla; +Cc: linux-pm, devicetree, Rafael J. Wysocki, Rob Herring
On 07-11-18, 17:40, Sudeep Holla wrote:
> Most of the ARM platforms used v2 OPP bindings to support big-little
> configurations. This arm_big_little_dt binding is incomplete and was
> never used.
>
> Commit f174e49e4906 ("cpufreq: remove unused arm_big_little_dt driver")
> removes the driver supporting this binding. However the binding was left
> unnoticed, so let's get rid of it now.
>
> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
> Cc: Viresh Kumar <viresh.kumar@linaro.org>
> Cc: Rob Herring <robh+dt@kernel.org>
> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
> ---
> .../bindings/cpufreq/arm_big_little_dt.txt | 65 -------------------
> 1 file changed, 65 deletions(-)
> delete mode 100644 Documentation/devicetree/bindings/cpufreq/arm_big_little_dt.txt
>
> Hi,
>
> For some reason, I didn't expect the driver to have an entry in the
> DT bindings and didn't look at it before. While I was searching references
> to big-little that can be removed, I spotted this. Sorry for that.
>
> Regards,
> Sudeep
>
> diff --git a/Documentation/devicetree/bindings/cpufreq/arm_big_little_dt.txt b/Documentation/devicetree/bindings/cpufreq/arm_big_little_dt.txt
> deleted file mode 100644
> index 2aa06ac0fac5..000000000000
> --- a/Documentation/devicetree/bindings/cpufreq/arm_big_little_dt.txt
> +++ /dev/null
> @@ -1,65 +0,0 @@
> -Generic ARM big LITTLE cpufreq driver's DT glue
> ------------------------------------------------
> -
> -This is DT specific glue layer for generic cpufreq driver for big LITTLE
> -systems.
> -
> -Both required and optional properties listed below must be defined
> -under node /cpus/cpu@x. Where x is the first cpu inside a cluster.
> -
> -FIXME: Cpus should boot in the order specified in DT and all cpus for a cluster
> -must be present contiguously. Generic DT driver will check only node 'x' for
> -cpu:x.
> -
> -Required properties:
> -- operating-points: Refer to Documentation/devicetree/bindings/opp/opp.txt
> - for details
> -
> -Optional properties:
> -- clock-latency: Specify the possible maximum transition latency for clock,
> - in unit of nanoseconds.
> -
> -Examples:
> -
> -cpus {
> - #address-cells = <1>;
> - #size-cells = <0>;
> -
> - cpu@0 {
> - compatible = "arm,cortex-a15";
> - reg = <0>;
> - next-level-cache = <&L2>;
> - operating-points = <
> - /* kHz uV */
> - 792000 1100000
> - 396000 950000
> - 198000 850000
> - >;
> - clock-latency = <61036>; /* two CLK32 periods */
> - };
> -
> - cpu@1 {
> - compatible = "arm,cortex-a15";
> - reg = <1>;
> - next-level-cache = <&L2>;
> - };
> -
> - cpu@100 {
> - compatible = "arm,cortex-a7";
> - reg = <100>;
> - next-level-cache = <&L2>;
> - operating-points = <
> - /* kHz uV */
> - 792000 950000
> - 396000 750000
> - 198000 450000
> - >;
> - clock-latency = <61036>; /* two CLK32 periods */
> - };
> -
> - cpu@101 {
> - compatible = "arm,cortex-a7";
> - reg = <101>;
> - next-level-cache = <&L2>;
> - };
> -};
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
--
viresh
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2018-11-08 4:45 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-11-07 17:40 [PATCH] dt-bindings: cpufreq: remove stale arm_big_little_dt entry Sudeep Holla
2018-11-08 4:45 ` Viresh Kumar
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.