From: Ilia Lin <ilialin@codeaurora.org> To: mturquette@baylibre.com, sboyd@kernel.org, robh@kernel.org, mark.rutland@arm.com, viresh.kumar@linaro.org, nm@ti.com, lgirdwood@gmail.com, broonie@kernel.org, andy.gross@linaro.org, david.brown@linaro.org, catalin.marinas@arm.com, will.deacon@arm.com, rjw@rjwysocki.net, linux-clk@vger.kernel.org Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, rnayak@codeaurora.org, ilialin@codeaurora.org, amit.kucheria@linaro.org, nicolas.dechesne@linaro.org, celster@codeaurora.org, tfinkel@codeaurora.org Subject: [PATCH v6 10/14] dt-bindings: qcom_spmi: Add support for SAW documentation Date: Mon, 14 May 2018 16:11:56 +0300 [thread overview] Message-ID: <1526303520-5843-11-git-send-email-ilialin@codeaurora.org> (raw) In-Reply-To: <1526303520-5843-1-git-send-email-ilialin@codeaurora.org> Add support for SAW controlled regulators. The regulators defined as SAW controlled in the device tree will be controlled through special CPU registers instead of direct SPMI accesses. This is required especially for CPU supply regulators to synchronize with clock scaling and for Automatic Voltage Switching. Document it. Signed-off-by: Ilia Lin <ilialin@codeaurora.org> Reviewed-by: Rob Herring <robh@kernel.org> --- .../bindings/regulator/qcom,spmi-regulator.txt | 45 ++++++++++++++++++++++ 1 file changed, 45 insertions(+) diff --git a/Documentation/devicetree/bindings/regulator/qcom,spmi-regulator.txt b/Documentation/devicetree/bindings/regulator/qcom,spmi-regulator.txt index 57d2c65..406f2e5 100644 --- a/Documentation/devicetree/bindings/regulator/qcom,spmi-regulator.txt +++ b/Documentation/devicetree/bindings/regulator/qcom,spmi-regulator.txt @@ -110,6 +110,11 @@ Qualcomm SPMI Regulators Definition: Reference to regulator supplying the input pin, as described in the data sheet. +- qcom,saw-reg: + Usage: optional + Value type: <phandle> + Description: Reference to syscon node defining the SAW registers. + The regulator node houses sub-nodes for each regulator within the device. Each sub-node is identified using the node's name, with valid values listed for each @@ -201,6 +206,17 @@ see regulator.txt - with additional custom properties described below: 2 = 0.55 uA 3 = 0.75 uA +- qcom,saw-slave: + Usage: optional + Value type: <boo> + Description: SAW controlled gang slave. Will not be configured. + +- qcom,saw-leader: + Usage: optional + Value type: <boo> + Description: SAW controlled gang leader. Will be configured as + SAW regulator. + Example: regulators { @@ -221,3 +237,32 @@ Example: .... }; + +Example 2: + + saw3: syscon@9A10000 { + compatible = "syscon"; + reg = <0x9A10000 0x1000>; + }; + + ... + + spm-regulators { + compatible = "qcom,pm8994-regulators"; + qcom,saw-reg = <&saw3>; + s8 { + qcom,saw-slave; + }; + s9 { + qcom,saw-slave; + }; + s10 { + qcom,saw-slave; + }; + pm8994_s11_saw: s11 { + qcom,saw-leader; + regulator-always-on; + regulator-min-microvolt = <900000>; + regulator-max-microvolt = <1140000>; + }; + }; -- 1.9.1
WARNING: multiple messages have this Message-ID (diff)
From: ilialin@codeaurora.org (Ilia Lin) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH v6 10/14] dt-bindings: qcom_spmi: Add support for SAW documentation Date: Mon, 14 May 2018 16:11:56 +0300 [thread overview] Message-ID: <1526303520-5843-11-git-send-email-ilialin@codeaurora.org> (raw) In-Reply-To: <1526303520-5843-1-git-send-email-ilialin@codeaurora.org> Add support for SAW controlled regulators. The regulators defined as SAW controlled in the device tree will be controlled through special CPU registers instead of direct SPMI accesses. This is required especially for CPU supply regulators to synchronize with clock scaling and for Automatic Voltage Switching. Document it. Signed-off-by: Ilia Lin <ilialin@codeaurora.org> Reviewed-by: Rob Herring <robh@kernel.org> --- .../bindings/regulator/qcom,spmi-regulator.txt | 45 ++++++++++++++++++++++ 1 file changed, 45 insertions(+) diff --git a/Documentation/devicetree/bindings/regulator/qcom,spmi-regulator.txt b/Documentation/devicetree/bindings/regulator/qcom,spmi-regulator.txt index 57d2c65..406f2e5 100644 --- a/Documentation/devicetree/bindings/regulator/qcom,spmi-regulator.txt +++ b/Documentation/devicetree/bindings/regulator/qcom,spmi-regulator.txt @@ -110,6 +110,11 @@ Qualcomm SPMI Regulators Definition: Reference to regulator supplying the input pin, as described in the data sheet. +- qcom,saw-reg: + Usage: optional + Value type: <phandle> + Description: Reference to syscon node defining the SAW registers. + The regulator node houses sub-nodes for each regulator within the device. Each sub-node is identified using the node's name, with valid values listed for each @@ -201,6 +206,17 @@ see regulator.txt - with additional custom properties described below: 2 = 0.55 uA 3 = 0.75 uA +- qcom,saw-slave: + Usage: optional + Value type: <boo> + Description: SAW controlled gang slave. Will not be configured. + +- qcom,saw-leader: + Usage: optional + Value type: <boo> + Description: SAW controlled gang leader. Will be configured as + SAW regulator. + Example: regulators { @@ -221,3 +237,32 @@ Example: .... }; + +Example 2: + + saw3: syscon at 9A10000 { + compatible = "syscon"; + reg = <0x9A10000 0x1000>; + }; + + ... + + spm-regulators { + compatible = "qcom,pm8994-regulators"; + qcom,saw-reg = <&saw3>; + s8 { + qcom,saw-slave; + }; + s9 { + qcom,saw-slave; + }; + s10 { + qcom,saw-slave; + }; + pm8994_s11_saw: s11 { + qcom,saw-leader; + regulator-always-on; + regulator-min-microvolt = <900000>; + regulator-max-microvolt = <1140000>; + }; + }; -- 1.9.1
next prev parent reply other threads:[~2018-05-14 13:11 UTC|newest] Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top 2018-05-14 13:11 [PATCH v6 00/14] CPU scaling support for msm8996 Ilia Lin 2018-05-14 13:11 ` Ilia Lin 2018-05-14 13:11 ` [PATCH v6 01/14] soc: qcom: Separate kryo l2 accessors from PMU driver Ilia Lin 2018-05-14 13:11 ` Ilia Lin 2018-05-14 13:11 ` [PATCH v6 02/14] clk: qcom: Make clk_alpha_pll_configure available to modules Ilia Lin 2018-05-14 13:11 ` Ilia Lin 2018-05-14 13:11 ` Ilia Lin 2018-05-14 13:11 ` [PATCH v6 03/14] clk: qcom: Add CPU clock driver for msm8996 Ilia Lin 2018-05-14 13:11 ` Ilia Lin 2018-05-14 13:11 ` [PATCH v6 04/14] clk: qcom: Add DT bindings for " Ilia Lin 2018-05-14 13:11 ` Ilia Lin 2018-05-14 13:11 ` [PATCH v6 05/14] clk: qcom: cpu-8996: Add support to switch to alternate PLL Ilia Lin 2018-05-14 13:11 ` Ilia Lin 2018-05-14 13:11 ` [PATCH v6 06/14] clk: qcom: cpu-8996: Add support to switch below 600Mhz Ilia Lin 2018-05-14 13:11 ` Ilia Lin 2018-05-14 13:11 ` [PATCH v6 07/14] clk: qcom: Add ACD path to CPU clock driver for msm8996 Ilia Lin 2018-05-14 13:11 ` Ilia Lin 2018-05-14 13:11 ` [PATCH v6 08/14] dt: qcom: Add opp and thermal to the msm8996 Ilia Lin 2018-05-14 13:11 ` Ilia Lin 2018-05-15 4:04 ` Viresh Kumar 2018-05-15 4:04 ` Viresh Kumar 2018-05-14 13:11 ` [PATCH v6 09/14] regulator: qcom_spmi: Add support for SAW Ilia Lin 2018-05-14 13:11 ` Ilia Lin 2018-05-14 13:11 ` Ilia Lin [this message] 2018-05-14 13:11 ` [PATCH v6 10/14] dt-bindings: qcom_spmi: Add support for SAW documentation Ilia Lin 2018-05-14 13:11 ` [PATCH v6 11/14] dt: qcom: Add SAW regulator for 8x96 CPUs Ilia Lin 2018-05-14 13:11 ` Ilia Lin 2018-05-15 4:04 ` Viresh Kumar 2018-05-15 4:04 ` Viresh Kumar 2018-05-14 13:11 ` [PATCH v6 12/14] cpufreq: Add Kryo CPU scaling driver Ilia Lin 2018-05-14 13:11 ` Ilia Lin 2018-05-15 4:09 ` Viresh Kumar 2018-05-15 4:09 ` Viresh Kumar 2018-05-14 13:11 ` [PATCH v6 13/14] dt-bindings: cpufreq: Document operating-points-v2-kryo-cpu Ilia Lin 2018-05-14 13:11 ` Ilia Lin 2018-05-15 4:09 ` Viresh Kumar 2018-05-15 4:09 ` Viresh Kumar 2018-05-14 13:12 ` [PATCH v6 14/14] dt: qcom: Add qcom-cpufreq-kryo driver configuration Ilia Lin 2018-05-14 13:12 ` Ilia Lin 2018-05-15 4:11 ` Viresh Kumar 2018-05-15 4:11 ` Viresh Kumar
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