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authorBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>2015-06-26 16:22:23 +0900
committerSeung-Woo Kim <sw0312.kim@samsung.com>2016-12-14 13:46:30 +0900
commit99588ae5332e261f8cee27faefe93ed0f1bd99f6 (patch)
tree3ae580b92a1a511161baa2938a87ba47e0422f0c /Documentation
parenta23b90ca342a3ce1ff7fc8aaae41802130dc55f8 (diff)
cpufreq: arm_big_little: add cluster regulator support
Add cluster regulator support as a preparation to adding generic arm_big_little_dt cpufreq_dt driver support for ODROID-XU3 board. This allows arm_big_little[_dt] driver to set not only the frequency but also the voltage (which is obtained from operating point's voltage value) for CPU clusters. Cc: Kukjin Kim <kgene.kim@samsung.com> Cc: Doug Anderson <dianders@chromium.org> Cc: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Cc: Andreas Faerber <afaerber@suse.de> Cc: Sachin Kamat <sachin.kamat@linaro.org> Cc: Thomas Abraham <thomas.ab@samsung.com> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/cpufreq/arm_big_little_dt.txt4
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/cpufreq/arm_big_little_dt.txt b/Documentation/devicetree/bindings/cpufreq/arm_big_little_dt.txt
index 0715695e94a9..8ca4a12564e3 100644
--- a/Documentation/devicetree/bindings/cpufreq/arm_big_little_dt.txt
+++ b/Documentation/devicetree/bindings/cpufreq/arm_big_little_dt.txt
@@ -18,6 +18,10 @@ Required properties:
Optional properties:
- clock-latency: Specify the possible maximum transition latency for clock,
in unit of nanoseconds.
+- cpu-cluster.0-supply: Provides the regulator node supplying voltage to CPU
+ cluster 0.
+- cpu-cluster.1-supply: Provides the regulator node supplying voltage to CPU
+ cluster 1.
Examples: