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Message-Id: <1443027209-19444-2-git-send-email-agross@codeaurora.org>
Date: Wed, 23 Sep 2015 11:53:20 -0500
From: Andy Gross <agross@...eaurora.org>
To: linux-arm-msm@...r.kernel.org
Cc: Mark Brown <broonie@...nel.org>,
Bjorn Andersson <bjorn.andersson@...ymobile.com>,
linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
Andy Gross <agross@...eaurora.org>
Subject: [Patch v2 01/10] soc: qcom: documentation: Update SMD/RPM Docs
This patch moves the qcom,smd-rpm.txt to the correct location and splits
out the smd and rpm documentation. In addition, a smd-rpm-regulator
document is added.
Signed-off-by: Andy Gross <agross@...eaurora.org>
---
.../devicetree/bindings/soc/qcom,smd-rpm.txt | 117 --------------------
.../bindings/soc/qcom/qcom,smd-rpm-regulator.txt | 103 +++++++++++++++++
.../devicetree/bindings/soc/qcom/qcom,smd-rpm.txt | 55 +++++++++
3 files changed, 158 insertions(+), 117 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/soc/qcom,smd-rpm.txt
create mode 100644 Documentation/devicetree/bindings/soc/qcom/qcom,smd-rpm-regulator.txt
create mode 100644 Documentation/devicetree/bindings/soc/qcom/qcom,smd-rpm.txt
diff --git a/Documentation/devicetree/bindings/soc/qcom,smd-rpm.txt b/Documentation/devicetree/bindings/soc/qcom,smd-rpm.txt
deleted file mode 100644
index e27f5c4..0000000
--- a/Documentation/devicetree/bindings/soc/qcom,smd-rpm.txt
+++ /dev/null
@@ -1,117 +0,0 @@
-Qualcomm Resource Power Manager (RPM) over SMD
-
-This driver is used to interface with the Resource Power Manager (RPM) found in
-various Qualcomm platforms. The RPM allows each component in the system to vote
-for state of the system resources, such as clocks, regulators and bus
-frequencies.
-
-- compatible:
- Usage: required
- Value type: <string>
- Definition: must be one of:
- "qcom,rpm-msm8974"
-
-- qcom,smd-channels:
- Usage: required
- Value type: <stringlist>
- Definition: Shared Memory channel used for communication with the RPM
-
-= SUBDEVICES
-
-The RPM exposes resources to its subnodes. The below bindings specify the set
-of valid subnodes that can operate on these resources.
-
-== Regulators
-
-Regulator nodes are identified by their compatible:
-
-- compatible:
- Usage: required
- Value type: <string>
- Definition: must be one of:
- "qcom,rpm-pm8841-regulators"
- "qcom,rpm-pm8941-regulators"
-
-- vdd_s1-supply:
-- vdd_s2-supply:
-- vdd_s3-supply:
-- vdd_s4-supply:
-- vdd_s5-supply:
-- vdd_s6-supply:
-- vdd_s7-supply:
-- vdd_s8-supply:
- Usage: optional (pm8841 only)
- Value type: <phandle>
- Definition: reference to regulator supplying the input pin, as
- described in the data sheet
-
-- vdd_s1-supply:
-- vdd_s2-supply:
-- vdd_s3-supply:
-- vdd_l1_l3-supply:
-- vdd_l2_lvs1_2_3-supply:
-- vdd_l4_l11-supply:
-- vdd_l5_l7-supply:
-- vdd_l6_l12_l14_l15-supply:
-- vdd_l8_l16_l18_l19-supply:
-- vdd_l9_l10_l17_l22-supply:
-- vdd_l13_l20_l23_l24-supply:
-- vdd_l21-supply:
-- vin_5vs-supply:
- Usage: optional (pm8941 only)
- Value type: <phandle>
- Definition: reference to regulator supplying the input pin, as
- described in the data sheet
-
-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
-of the pmics below.
-
-pm8841:
- s1, s2, s3, s4, s5, s6, s7, s8
-
-pm8941:
- s1, s2, s3, s4, l1, l2, l3, l4, l5, l6, l7, l8, l9, l10, l11, l12, l13,
- l14, l15, l16, l17, l18, l19, l20, l21, l22, l23, l24, lvs1, lvs2,
- lvs3, 5vs1, 5vs2
-
-The content of each sub-node is defined by the standard binding for regulators -
-see regulator.txt.
-
-= EXAMPLE
-
- smd {
- compatible = "qcom,smd";
-
- rpm {
- interrupts = <0 168 1>;
- qcom,ipc = <&apcs 8 0>;
- qcom,smd-edge = <15>;
-
- rpm_requests {
- compatible = "qcom,rpm-msm8974";
- qcom,smd-channels = "rpm_requests";
-
- pm8941-regulators {
- compatible = "qcom,rpm-pm8941-regulators";
- vdd_l13_l20_l23_l24-supply = <&pm8941_boost>;
-
- pm8941_s3: s3 {
- regulator-min-microvolt = <1800000>;
- regulator-max-microvolt = <1800000>;
- };
-
- pm8941_boost: s4 {
- regulator-min-microvolt = <5000000>;
- regulator-max-microvolt = <5000000>;
- };
-
- pm8941_l20: l20 {
- regulator-min-microvolt = <2950000>;
- regulator-max-microvolt = <2950000>;
- };
- };
- };
- };
- };
-
diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,smd-rpm-regulator.txt b/Documentation/devicetree/bindings/soc/qcom/qcom,smd-rpm-regulator.txt
new file mode 100644
index 0000000..7084474
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/qcom/qcom,smd-rpm-regulator.txt
@@ -0,0 +1,103 @@
+QCOM SMD RPM REGULATOR
+
+The Qualcomm RPM over SMD regulator is modelled as a subdevice of the RPM.
+Because SMD is used as the communication transport mechanism, the RPM resides as
+a subnode of the SMD. As such, the SMD-RPM regulator requires that the SMD and
+RPM nodes be present.
+
+Please refer to the qcom,smd.txt for information pertaining to the SMD node.
+Please refer to the qcom,smd-rpm.txt for information regarding the RPM node.
+
+== Regulator
+
+Regulator nodes are identified by their compatible:
+
+- compatible:
+ Usage: required
+ Value type: <string>
+ Definition: must be one of:
+ "qcom,rpm-pm8841-regulators"
+ "qcom,rpm-pm8941-regulators"
+
+- vdd_s1-supply:
+- vdd_s2-supply:
+- vdd_s3-supply:
+- vdd_s4-supply:
+- vdd_s5-supply:
+- vdd_s6-supply:
+- vdd_s7-supply:
+- vdd_s8-supply:
+ Usage: optional (pm8841 only)
+ Value type: <phandle>
+ Definition: reference to regulator supplying the input pin, as
+ described in the data sheet
+
+- vdd_s1-supply:
+- vdd_s2-supply:
+- vdd_s3-supply:
+- vdd_l1_l3-supply:
+- vdd_l2_lvs1_2_3-supply:
+- vdd_l4_l11-supply:
+- vdd_l5_l7-supply:
+- vdd_l6_l12_l14_l15-supply:
+- vdd_l8_l16_l18_l19-supply:
+- vdd_l9_l10_l17_l22-supply:
+- vdd_l13_l20_l23_l24-supply:
+- vdd_l21-supply:
+- vin_5vs-supply:
+ Usage: optional (pm8941 only)
+ Value type: <phandle>
+ Definition: reference to regulator supplying the input pin, as
+ described in the data sheet
+
+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
+of the pmics below.
+
+pm8841:
+ s1, s2, s3, s4, s5, s6, s7, s8
+
+pm8941:
+ s1, s2, s3, s4, l1, l2, l3, l4, l5, l6, l7, l8, l9, l10, l11, l12, l13,
+ l14, l15, l16, l17, l18, l19, l20, l21, l22, l23, l24, lvs1, lvs2,
+ lvs3, 5vs1, 5vs2
+
+The content of each sub-node is defined by the standard binding for regulators -
+see regulator.txt.
+
+= EXAMPLE
+
+ smd {
+ compatible = "qcom,smd";
+
+ rpm {
+ interrupts = <0 168 1>;
+ qcom,ipc = <&apcs 8 0>;
+ qcom,smd-edge = <15>;
+
+ rpm_requests {
+ compatible = "qcom,rpm-msm8974";
+ qcom,smd-channels = "rpm_requests";
+
+ pm8941-regulators {
+ compatible = "qcom,rpm-pm8941-regulators";
+ vdd_l13_l20_l23_l24-supply = <&pm8941_boost>;
+
+ pm8941_s3: s3 {
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ };
+
+ pm8941_boost: s4 {
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ };
+
+ pm8941_l20: l20 {
+ regulator-min-microvolt = <2950000>;
+ regulator-max-microvolt = <2950000>;
+ };
+ };
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,smd-rpm.txt b/Documentation/devicetree/bindings/soc/qcom/qcom,smd-rpm.txt
new file mode 100644
index 0000000..3710dd5
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/qcom/qcom,smd-rpm.txt
@@ -0,0 +1,55 @@
+Qualcomm Resource Power Manager (RPM) over SMD
+
+This driver is used to interface with the Resource Power Manager (RPM) found in
+various Qualcomm platforms. The RPM allows each component in the system to vote
+for state of the system resources, such as clocks, regulators and bus
+frequencies.
+
+The SMD information for the RPM edge should be filled out. See qcom,smd.txt for
+the required edge properties. All SMD related properties will reside within the
+RPM node itself.
+
+= SUBDEVICES
+
+The RPM exposes resources to its subnodes. The rpm_requests node must be
+present and this subnode may contain children that designate regulator
+resources.
+
+- compatible:
+ Usage: required
+ Value type: <string>
+ Definition: must be one of:
+ "qcom,rpm-msm8974"
+
+- qcom,smd-channels:
+ Usage: required
+ Value type: <string>
+ Definition: must be "rpm_requests"
+
+Please refer to qcom,smd-rpm-regulator.txt for information on the regulator
+subnodes that can exist under the rpm_requests.
+
+Example:
+
+ apcs: syscon@...11000 {
+ compatible = "syscon";
+ reg = <0xf9011000 0x1000>;
+ };
+
+ smd {
+ compatible = "qcom,smd";
+
+ rpm {
+ interrupts = <0 168 1>;
+ qcom,ipc = <&apcs 8 0>;
+ qcom,smd-edge = <15>;
+
+ rpm_requests {
+ compatible = "qcom,rpm-msm8974";
+ qcom,smd-channels = "rpm_requests";
+
+ ...
+ };
+ };
+ };
+
--
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