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authorRafael J. Wysocki <rafael.j.wysocki@intel.com>2024-11-19 23:37:56 +0300
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2024-11-19 23:37:56 +0300
commit1a93226619dc5798dacee0734a5f1f886b358953 (patch)
treec5b1287cadf7db2c28fa9e6f46030078eaa78722 /Documentation
parentad52c55e1d3a2e85e05e47b6d7056c662a9c0246 (diff)
parent53205a7903666d35709954d9fb7370a8150d5e0e (diff)
downloadlinux-1a93226619dc5798dacee0734a5f1f886b358953.tar.xz
Merge tag 'opp-updates-6.13' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/vireshk/pm
Merge OPP (Operating Performance Points) Updates for 6.13 from Viresh Kumar: "- Describe opp-supported-hw property for ti-cpu (Dhruva Gole). - Remove unused declarations in header file (Zhang Zekun)." * tag 'opp-updates-6.13' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/vireshk/pm: dt-bindings: opp: operating-points-v2-ti-cpu: Describe opp-supported-hw OPP: Remove unused declarations in header file
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/opp/operating-points-v2-ti-cpu.yaml20
1 files changed, 19 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/opp/operating-points-v2-ti-cpu.yaml b/Documentation/devicetree/bindings/opp/operating-points-v2-ti-cpu.yaml
index fd0c8d5c5f3e..624d1f3f1382 100644
--- a/Documentation/devicetree/bindings/opp/operating-points-v2-ti-cpu.yaml
+++ b/Documentation/devicetree/bindings/opp/operating-points-v2-ti-cpu.yaml
@@ -45,7 +45,25 @@ patternProperties:
clock-latency-ns: true
opp-hz: true
opp-microvolt: true
- opp-supported-hw: true
+ opp-supported-hw:
+ items:
+ items:
+ - description:
+ The revision of the SoC the OPP is supported by.
+ This can be easily obtained from the datasheet of the
+ part being ordered/used. For example, it will be 0x01 for SR1.0
+
+ - description:
+ The eFuse bits that indicate the particular OPP is available.
+ The device datasheet has a table talking about Device Speed Grades.
+ This table is to be sorted with only the unique elements of the
+ MAXIMUM OPERATING FREQUENCY starting from the first row which
+ tells the lowest OPP, to the highest. The corresponding bits
+ need to be set based on N elements of speed grade the device supports.
+ So, if there are 3 possible unique MAXIMUM OPERATING FREQUENCY
+ in the table, then BIT(0) | (1) | (2) will be set, which means
+ the value shall be 0x7.
+
opp-suspend: true
turbo-mode: true