[PATCH 1/3] mfd: devicetree: bindings: Add Qualcomm RPM DT binding
From: Bjorn Andersson
Date: Tue May 27 2014 - 13:31:32 EST
Add binding for the Qualcomm Resource Power Manager (RPM) found in 8660, 8960
and 8064 based devices. The binding currently describes the rpm itself and the
regulator subnodes.
Signed-off-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxxxxxx>
---
Documentation/devicetree/bindings/mfd/qcom,rpm.txt | 284 +++++++++++++++++++++
include/dt-bindings/mfd/qcom_rpm.h | 142 +++++++++++
2 files changed, 426 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/qcom,rpm.txt
create mode 100644 include/dt-bindings/mfd/qcom_rpm.h
diff --git a/Documentation/devicetree/bindings/mfd/qcom,rpm.txt b/Documentation/devicetree/bindings/mfd/qcom,rpm.txt
new file mode 100644
index 0000000..3908a5d
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/qcom,rpm.txt
@@ -0,0 +1,284 @@
+Qualcomm Resource Power Manager (RPM)
+
+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-apq8064"
+ "qcom,rpm-msm8660"
+ "qcom,rpm-msm8960"
+
+- reg:
+ Usage: required
+ Value type: <prop-encoded-array>
+ Definition: two entries specifying the RPM's message ram and ipc register
+
+- reg-names:
+ Usage: required
+ Value type: <string-array>
+ Definition: must contain the following, in order:
+ "msg_ram"
+ "ipc"
+
+- interrupts:
+ Usage: required
+ Value type: <prop-encoded-array>
+ Definition: three entries specifying the RPM's:
+ 1. acknowledgement interrupt
+ 2. error interrupt
+ 3. wakeup interrupt
+
+- interrupt-names:
+ Usage: required
+ Value type: <string-array>
+ Definition: must be the three strings "ack", "err" and "wakeup", in order
+
+- #address-cells:
+ Usage: required
+ Value type: <u32>
+ Definition: must be 1
+
+- #size-cells:
+ Usage: required
+ Value type: <u32>
+ Definition: must be 0
+
+
+= SUBDEVICES
+
+The RPM exposes resources to its subnodes. The below bindings specify the set
+of valid subnodes that can operate on these resources.
+
+== Switch-mode Power Supply regulator
+
+- compatible:
+ Usage: required
+ Value type: <string>
+ Definition: must be one of:
+ "qcom,rpm-pm8058-smps"
+ "qcom,rpm-pm8901-ftsmps"
+ "qcom,rpm-pm8921-smps"
+ "qcom,rpm-pm8921-ftsmps"
+
+- reg:
+ Usage: required
+ Value type: <u32>
+ Definition: resource as defined in <dt-bindings/mfd/qcom_rpm.h>
+
+- qcom,switch-mode-frequency:
+ Usage: required
+ Value type: <u32>
+ Definition: Frequency (Hz) of the switch-mode power supply;
+ must be one of:
+ 19200000, 9600000, 6400000, 4800000, 3840000, 3200000,
+ 2740000, 2400000, 2130000, 1920000, 1750000, 1600000,
+ 1480000, 1370000, 1280000, 1200000
+
+- qcom,hpm-threshold:
+ Usage: optional
+ Value type: <u32>
+ Definition: indicates the breaking point at which the regulator should
+ switch to high power mode
+
+- qcom,load-bias:
+ Usage: optional
+ Value type: <u32>
+ Definition: specifies a base load on the specific regulator
+
+- qcom,boot-load:
+ Usage: optional
+ Value type: <u32>
+ Definition: specifies the configured load on boot for the specific
+ regulator
+
+- qcom,force-mode-none:
+ Usage: optional (default if no other qcom,force-mode is specified)
+ Value type: <empty>
+ Defintion: indicates that the regulator should not be forced to any
+ particular mode
+
+- qcom,force-mode-lpm:
+ Usage: optional
+ Value type: <empty>
+ Definition: indicates that the regulator should be forced to operate in
+ low-power-mode
+
+- qcom,force-mode-auto:
+ Usage: optional (only available for 8960/8064)
+ Value type: <empty>
+ Definition: indicates that the regulator should be automatically pick
+ operating mode
+
+- qcom,force-mode-hpm:
+ Usage: optional (only available for 8960/8064)
+ Value type: <empty>
+ Definition: indicates that the regulator should be forced to operate in
+ high-power-mode
+
+- qcom,force-mode-bypass: (only for 8960/8064)
+ Usage: optional (only available for 8960/8064)
+ Value type: <empty>
+ Definition: indicates that the regulator should be forced to operate in
+ bypass mode
+
+- qcom,power-mode-hysteretic:
+ Usage: optional
+ Value type: <empty>
+ Definition: indicates that the power supply should operate in hysteretic
+ mode (defaults to qcom,power-mode-pwm if not specified)
+
+- qcom,power-mode-pwm:
+ Usage: optional
+ Value type: <empty>
+ Definition: indicates that the power supply should operate in pwm mode
+
+Standard regulator bindings are used inside switch mode power supply subnodes.
+Check Documentation/devicetree/bindings/regulator/regulator.txt for more
+details.
+
+== Low-dropout regulator
+
+- compatible:
+ Usage: required
+ Value type: <string>
+ Definition: must be one of:
+ "qcom,rpm-pm8058-pldo"
+ "qcom,rpm-pm8058-nldo"
+ "qcom,rpm-pm8901-pldo"
+ "qcom,rpm-pm8901-nldo"
+ "qcom,rpm-pm8921-pldo"
+ "qcom,rpm-pm8921-nldo"
+ "qcom,rpm-pm8921-nldo1200"
+
+- reg:
+ Usage: required
+ Value type: <u32>
+ Definition: resource as defined in <dt-bindings/mfd/qcom_rpm.h>
+
+- qcom,hpm-threshold:
+ Usage: optional
+ Value type: <u32>
+ Definition: indicates the breaking point at which the regulator should
+ switch to high power mode
+
+- qcom,load-bias:
+ Usage: optional
+ Value type: <u32>
+ Definition: specifies a base load on the specific regulator
+
+- qcom,boot-load:
+ Usage: optional
+ Value type: <u32>
+ Definition: specifies the configured load on boot for the specific
+ regulator
+
+- qcom,force-mode-none:
+ Usage: optional (default if no other qcom,force-mode is specified)
+ Value type: <empty>
+ Defintion: indicates that the regulator should not be forced to any
+ particular mode
+
+- qcom,force-mode-lpm:
+ Usage: optional
+ Value type: <empty>
+ Definition: indicates that the regulator should be forced to operate in
+ low-power-mode
+
+- qcom,force-mode-auto:
+ Usage: optional (only available for 8960/8064)
+ Value type: <empty>
+ Definition: indicates that the regulator should be automatically pick
+ operating mode
+
+- qcom,force-mode-hpm:
+ Usage: optional (only available for 8960/8064)
+ Value type: <empty>
+ Definition: indicates that the regulator should be forced to operate in
+ high-power-mode
+
+- qcom,force-mode-bypass: (only for 8960/8064)
+ Usage: optional (only available for 8960/8064)
+ Value type: <empty>
+ Definition: indicates that the regulator should be forced to operate in
+ bypass mode
+
+Standard regulator bindings are used inside switch low-dropout regulator
+subnodes. Check Documentation/devicetree/bindings/regulator/regulator.txt for
+more details.
+
+== Negative Charge Pump
+
+- compatible:
+ Usage: required
+ Value type: <string>
+ Definition: must be one of:
+ "qcom,rpm-pm8058-ncp"
+ "qcom,rpm-pm8921-ncp"
+ "qcom,rpm-pm8921-nldo1200"
+
+- reg:
+ Usage: required
+ Value type: <u32>
+ Definition: resource as defined in <dt-bindings/mfd/qcom_rpm.h>
+
+- qcom,switch-mode-frequency:
+ Usage: required
+ Value type: <u32>
+ Definition: Frequency (Hz) of the swith mode power supply;
+ must be one of:
+ 19200000, 9600000, 6400000, 4800000, 3840000, 3200000,
+ 2740000, 2400000, 2130000, 1920000, 1750000, 1600000,
+ 1480000, 1370000, 1280000, 1200000
+
+Standard regulator bindings are used inside negative charge pump regulator
+subnodes. Check Documentation/devicetree/bindings/regulator/regulator.txt for
+more details.
+
+== Switch
+
+- compatible:
+ Usage: required
+ Value type: <string>
+ Definition: must be one of:
+ "qcom,rpm-pm8058-switch"
+ "qcom,rpm-pm8901-switch"
+ "qcom,rpm-pm8921-switch"
+
+- reg:
+ Usage: required
+ Value type: <u32>
+ Definition: resource as defined in <dt-bindings/mfd/qcom_rpm.h>
+
+
+= EXAMPLE
+
+ #include <dt-bindings/mfd/qcom_rpm.h>
+
+ rpm@108000 {
+ compatible = "qcom,rpm-msm8960";
+ reg = <0x108000 0x1000 0x2011008 0x4>;
+
+ interrupts = <0 19 0>, <0 21 0>, <0 22 0>;
+ interrupt-names = "ack", "err", "wakeup";
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pm8921_s1: pm8921-s1 {
+ compatible = "qcom,rpm-pm8921-smps";
+ reg = <QCOM_RPM_PM8921_S1>;
+
+ regulator-min-microvolt = <1225000>;
+ regulator-max-microvolt = <1225000>;
+ regulator-always-on;
+
+ qcom,switch-mode-frequency = <3200000>;
+ qcom,hpm-threshold = <100000>;
+ };
+ };
+
diff --git a/include/dt-bindings/mfd/qcom_rpm.h b/include/dt-bindings/mfd/qcom_rpm.h
new file mode 100644
index 0000000..277e789
--- /dev/null
+++ b/include/dt-bindings/mfd/qcom_rpm.h
@@ -0,0 +1,142 @@
+/*
+ * This header provides constants for the Qualcomm RPM bindings.
+ */
+
+#ifndef _DT_BINDINGS_MFD_QCOM_RPM_H
+#define _DT_BINDINGS_MFD_QCOM_RPM_H
+
+#define QCOM_RPM_APPS_FABRIC_ARB 1
+#define QCOM_RPM_APPS_FABRIC_CLK 2
+#define QCOM_RPM_APPS_FABRIC_HALT 3
+#define QCOM_RPM_APPS_FABRIC_IOCTL 4
+#define QCOM_RPM_APPS_FABRIC_MODE 5
+#define QCOM_RPM_APPS_L2_CACHE_CTL 6
+#define QCOM_RPM_CFPB_CLK 7
+#define QCOM_RPM_CXO_BUFFERS 8
+#define QCOM_RPM_CXO_CLK 9
+#define QCOM_RPM_DAYTONA_FABRIC_CLK 10
+#define QCOM_RPM_DDR_DMM 11
+#define QCOM_RPM_EBI1_CLK 12
+#define QCOM_RPM_HDMI_SWITCH 13
+#define QCOM_RPM_MMFPB_CLK 14
+#define QCOM_RPM_MM_FABRIC_ARB 15
+#define QCOM_RPM_MM_FABRIC_CLK 16
+#define QCOM_RPM_MM_FABRIC_HALT 17
+#define QCOM_RPM_MM_FABRIC_IOCTL 18
+#define QCOM_RPM_MM_FABRIC_MODE 19
+#define QCOM_RPM_PLL_4 20
+#define QCOM_RPM_PM8058_LDO0 21
+#define QCOM_RPM_PM8058_LDO1 22
+#define QCOM_RPM_PM8058_LDO2 23
+#define QCOM_RPM_PM8058_LDO3 24
+#define QCOM_RPM_PM8058_LDO4 25
+#define QCOM_RPM_PM8058_LDO5 26
+#define QCOM_RPM_PM8058_LDO6 27
+#define QCOM_RPM_PM8058_LDO7 28
+#define QCOM_RPM_PM8058_LDO8 29
+#define QCOM_RPM_PM8058_LDO9 30
+#define QCOM_RPM_PM8058_LDO10 31
+#define QCOM_RPM_PM8058_LDO11 32
+#define QCOM_RPM_PM8058_LDO12 33
+#define QCOM_RPM_PM8058_LDO13 34
+#define QCOM_RPM_PM8058_LDO14 35
+#define QCOM_RPM_PM8058_LDO15 36
+#define QCOM_RPM_PM8058_LDO16 37
+#define QCOM_RPM_PM8058_LDO17 38
+#define QCOM_RPM_PM8058_LDO18 39
+#define QCOM_RPM_PM8058_LDO19 40
+#define QCOM_RPM_PM8058_LDO20 41
+#define QCOM_RPM_PM8058_LDO21 42
+#define QCOM_RPM_PM8058_LDO22 43
+#define QCOM_RPM_PM8058_LDO23 44
+#define QCOM_RPM_PM8058_LDO24 45
+#define QCOM_RPM_PM8058_LDO25 46
+#define QCOM_RPM_PM8058_LVS0 47
+#define QCOM_RPM_PM8058_LVS1 48
+#define QCOM_RPM_PM8058_NCP 49
+#define QCOM_RPM_PM8058_SMPS0 50
+#define QCOM_RPM_PM8058_SMPS1 51
+#define QCOM_RPM_PM8058_SMPS2 52
+#define QCOM_RPM_PM8058_SMPS3 53
+#define QCOM_RPM_PM8058_SMPS4 54
+#define QCOM_RPM_PM8821_L1 55
+#define QCOM_RPM_PM8821_S1 56
+#define QCOM_RPM_PM8821_S2 57
+#define QCOM_RPM_PM8901_LDO0 58
+#define QCOM_RPM_PM8901_LDO1 59
+#define QCOM_RPM_PM8901_LDO2 60
+#define QCOM_RPM_PM8901_LDO3 61
+#define QCOM_RPM_PM8901_LDO4 62
+#define QCOM_RPM_PM8901_LDO5 63
+#define QCOM_RPM_PM8901_LDO6 64
+#define QCOM_RPM_PM8901_LVS0 65
+#define QCOM_RPM_PM8901_LVS1 66
+#define QCOM_RPM_PM8901_LVS2 67
+#define QCOM_RPM_PM8901_LVS3 68
+#define QCOM_RPM_PM8901_MVS 69
+#define QCOM_RPM_PM8901_SMPS0 70
+#define QCOM_RPM_PM8901_SMPS1 71
+#define QCOM_RPM_PM8901_SMPS2 72
+#define QCOM_RPM_PM8901_SMPS3 73
+#define QCOM_RPM_PM8901_SMPS4 74
+#define QCOM_RPM_PM8921_CLK1 75
+#define QCOM_RPM_PM8921_CLK2 76
+#define QCOM_RPM_PM8921_L1 77
+#define QCOM_RPM_PM8921_L2 78
+#define QCOM_RPM_PM8921_L3 79
+#define QCOM_RPM_PM8921_L4 80
+#define QCOM_RPM_PM8921_L5 81
+#define QCOM_RPM_PM8921_L6 82
+#define QCOM_RPM_PM8921_L7 83
+#define QCOM_RPM_PM8921_L8 84
+#define QCOM_RPM_PM8921_L9 85
+#define QCOM_RPM_PM8921_L10 86
+#define QCOM_RPM_PM8921_L11 87
+#define QCOM_RPM_PM8921_L12 88
+#define QCOM_RPM_PM8921_L13 89
+#define QCOM_RPM_PM8921_L14 90
+#define QCOM_RPM_PM8921_L15 91
+#define QCOM_RPM_PM8921_L16 92
+#define QCOM_RPM_PM8921_L17 93
+#define QCOM_RPM_PM8921_L18 94
+#define QCOM_RPM_PM8921_L19 95
+#define QCOM_RPM_PM8921_L20 96
+#define QCOM_RPM_PM8921_L21 97
+#define QCOM_RPM_PM8921_L22 98
+#define QCOM_RPM_PM8921_L23 99
+#define QCOM_RPM_PM8921_L24 100
+#define QCOM_RPM_PM8921_L25 101
+#define QCOM_RPM_PM8921_L26 102
+#define QCOM_RPM_PM8921_L27 103
+#define QCOM_RPM_PM8921_L28 104
+#define QCOM_RPM_PM8921_L29 105
+#define QCOM_RPM_PM8921_LVS1 106
+#define QCOM_RPM_PM8921_LVS2 107
+#define QCOM_RPM_PM8921_LVS3 108
+#define QCOM_RPM_PM8921_LVS4 109
+#define QCOM_RPM_PM8921_LVS5 110
+#define QCOM_RPM_PM8921_LVS6 111
+#define QCOM_RPM_PM8921_LVS7 112
+#define QCOM_RPM_PM8921_MVS 113
+#define QCOM_RPM_PM8921_NCP 114
+#define QCOM_RPM_PM8921_S1 115
+#define QCOM_RPM_PM8921_S2 116
+#define QCOM_RPM_PM8921_S3 117
+#define QCOM_RPM_PM8921_S4 118
+#define QCOM_RPM_PM8921_S5 119
+#define QCOM_RPM_PM8921_S6 120
+#define QCOM_RPM_PM8921_S7 121
+#define QCOM_RPM_PM8921_S8 122
+#define QCOM_RPM_PXO_CLK 123
+#define QCOM_RPM_QDSS_CLK 124
+#define QCOM_RPM_SFPB_CLK 125
+#define QCOM_RPM_SMI_CLK 126
+#define QCOM_RPM_SYS_FABRIC_ARB 127
+#define QCOM_RPM_SYS_FABRIC_CLK 128
+#define QCOM_RPM_SYS_FABRIC_HALT 129
+#define QCOM_RPM_SYS_FABRIC_IOCTL 130
+#define QCOM_RPM_SYS_FABRIC_MODE 131
+#define QCOM_RPM_USB_OTG_SWITCH 132
+#define QCOM_RPM_VDDMIN_GPIO 133
+
+#endif
--
1.8.2.2
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