From mboxrd@z Thu Jan 1 00:00:00 1970 From: lee.jones@linaro.org (Lee Jones) Date: Mon, 27 Jul 2015 16:20:29 +0100 Subject: [PATCH v4 1/2] dt: cpufreq: st: Provide bindings for ST's CPUFreq implementation Message-ID: <1438010430-5802-1-git-send-email-lee.jones@linaro.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Cc: devicetree at vger.kernel.org Signed-off-by: Lee Jones --- Changelog: - Using OPP-v2 - Moved (and linked) a bunch of documentation to ../power/ .../devicetree/bindings/cpufreq/cpufreq-st.txt | 40 ++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 Documentation/devicetree/bindings/cpufreq/cpufreq-st.txt diff --git a/Documentation/devicetree/bindings/cpufreq/cpufreq-st.txt b/Documentation/devicetree/bindings/cpufreq/cpufreq-st.txt new file mode 100644 index 0000000..79add9d --- /dev/null +++ b/Documentation/devicetree/bindings/cpufreq/cpufreq-st.txt @@ -0,0 +1,40 @@ +Binding for ST's CPUFreq driver +=============================== + +Frequency Scaling only +---------------------- + +Located in CPU's node: + +- operating-points : [See: ../power/opp.txt] + +Example [safe] +-------------- + +cpus { + cpu at 0 { + /* kHz uV */ + operating-points = <1500000 0 + 1200000 0 + 800000 0 + 500000 0>; + }; +}; + +Dynamic Voltage and Frequency Scaling (DVFS) +-------------------------------------------- + +Located in CPU's node: + +- operating-points-v2-sti : [See ../power/opp-st.txt] + +Example [unsafe] +---------------- + +cpus { + cpu at 0 { + operating-points-v2 = <[OPP list phandle]>; + }; +}; + +For an example of an OPP list, see ../power/opp-st.txt. -- 1.9.1