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Message-ID: <1536325173-16617-2-git-send-email-p.paillet@st.com>
Date: Fri, 7 Sep 2018 12:59:43 +0000
From: Pascal PAILLET-LME <p.paillet@...com>
To: "dmitry.torokhov@...il.com" <dmitry.torokhov@...il.com>,
"robh+dt@...nel.org" <robh+dt@...nel.org>,
"mark.rutland@....com" <mark.rutland@....com>,
"lee.jones@...aro.org" <lee.jones@...aro.org>,
"lgirdwood@...il.com" <lgirdwood@...il.com>,
"broonie@...nel.org" <broonie@...nel.org>,
"wim@...ux-watchdog.org" <wim@...ux-watchdog.org>,
"linux@...ck-us.net" <linux@...ck-us.net>,
"linux-input@...r.kernel.org" <linux-input@...r.kernel.org>,
"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"linux-watchdog@...r.kernel.org" <linux-watchdog@...r.kernel.org>,
"benjamin.gaignard@...aro.org" <benjamin.gaignard@...aro.org>,
"eballetbo@...il.com" <eballetbo@...il.com>
CC: Pascal PAILLET-LME <p.paillet@...com>
Subject: [PATCH V2 1/8] dt-bindings: mfd: document stpmic1
From: pascal paillet <p.paillet@...com>
stpmic1 is a pmic from STMicroelectronics. The stpmic1 integrates 10
regulators and 3 switches with various capabilities.
Signed-off-by: pascal paillet <p.paillet@...com>
---
changes in v2:
* the hardware component has been renamed from stpmu1 to stpmic1 !
* replace _ with - in properties name
* fix node names in example
* remove regulator compatibles in example
* add st,stpmic1.h to the patch
Rob, I did not change the usage of the properties because it would lead to a lot
of st properties; for example st,main-control-register would be replaced by:
st,power_cycling_on_turn_off
st,pwrctrl_enabled
st,pwrctrl_active_high
should I go this way ?
Rob, I did not found the standard property for st,onkey-press-seconds = <10>;
.../devicetree/bindings/mfd/st,stpmic1.txt | 137 +++++++++++++++++++++
include/dt-bindings/mfd/st,stpmic1.h | 46 +++++++
2 files changed, 183 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/st,stpmic1.txt
create mode 100644 include/dt-bindings/mfd/st,stpmic1.h
diff --git a/Documentation/devicetree/bindings/mfd/st,stpmic1.txt b/Documentation/devicetree/bindings/mfd/st,stpmic1.txt
new file mode 100644
index 0000000..9f2c516
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/st,stpmic1.txt
@@ -0,0 +1,137 @@
+* STMicroelectronics STPMIC1 Power Management IC
+
+Required parent device properties:
+- compatible: "st,stpmic1"
+- reg: the I2C slave address for the stpmic1 chip
+- interrupts-extended: interrupt lines to use: second irq is for wakeup.
+- #interrupt-cells: should be 2.
+- interrupt-controller: describes the STPMIC1 as an interrupt
+ controller (has its own domain). interrupt number are the following:
+ /* Interrupt Register 1 (0x50 for latch) */
+ IT_SWOUT_R=0
+ IT_SWOUT_F=1
+ IT_VBUS_OTG_R=2
+ IT_VBUS_OTG_F=3
+ IT_WAKEUP_R=4
+ IT_WAKEUP_F=5
+ IT_PONKEY_R=6
+ IT_PONKEY_F=7
+ /* Interrupt Register 2 (0x51 for latch) */
+ IT_OVP_BOOST=8
+ IT_OCP_BOOST=9
+ IT_OCP_SWOUT=10
+ IT_OCP_OTG=11
+ IT_CURLIM_BUCK4=12
+ IT_CURLIM_BUCK3=13
+ IT_CURLIM_BUCK2=14
+ IT_CURLIM_BUCK1=15
+ /* Interrupt Register 3 (0x52 for latch) */
+ IT_SHORT_SWOUT=16
+ IT_SHORT_SWOTG=17
+ IT_CURLIM_LDO6=18
+ IT_CURLIM_LDO5=19
+ IT_CURLIM_LDO4=20
+ IT_CURLIM_LDO3=21
+ IT_CURLIM_LDO2=22
+ IT_CURLIM_LDO1=23
+ /* Interrupt Register 3 (0x52 for latch) */
+ IT_SWIN_R=24
+ IT_SWIN_F=25
+ IT_RESERVED_1=26
+ IT_RESERVED_2=27
+ IT_VINLOW_R=28
+ IT_VINLOW_F=29
+ IT_TWARN_R=30
+ IT_TWARN_F=31
+
+Optional parent device properties:
+- st,main-control-register:
+ -bit 1: Power cycling will be performed on turn OFF condition
+ -bit 2: PWRCTRL is functional
+ -bit 3: PWRCTRL active high
+- st,pads-pull-register:
+ -bit 1: WAKEUP pull down is not active
+ -bit 2: PWRCTRL pull up is active
+ -bit 3: PWRCTRL pull down is active
+ -bit 4: WAKEUP detector is disabled
+- st,vin-control-register:
+ -bit 0: VINLOW monitoring is enabled
+ -bit [1...3]: VINLOW rising threshold
+ 000 VINOK_f + 50mV
+ 001 VINOK_f + 100mV
+ 010 VINOK_f + 150mV
+ 011 VINOK_f + 200mV
+ 100 VINOK_f + 250mV
+ 101 VINOK_f + 300mV
+ 110 VINOK_f + 350mV
+ 111 VINOK_f + 400mV
+ -bit [4...5]: VINLOW hyst
+ 00 100mV
+ 01 200mV
+ 10 300mV
+ 11 400mV
+ -bit 6: SW_OUT detector is disabled
+ -bit 7: SW_IN detector is enabled.
+- st,usb-control-register:
+ -bit 3: SW_OUT current limit
+ 0: 600mA
+ 1: 1.1A
+ -bit 4: VBUS_OTG discharge is enabled
+ -bit 5: SW_OUT discharge is enabled
+ -bit 6: VBUS_OTG detection is enabled
+ -bit 7: BOOST_OVP is disabled
+
+
+stpmic1 consists is a varied group of sub-devices:
+
+Device Description
+------ ------------
+st,stpmic1-onkey : On key
+st,stpmic1-regulators : Regulators
+st,stpmic1-wdt : Watchdog
+
+each sub-device bindings is be described in associated driver
+documentation section.
+
+Example:
+
+pmic: stpmic1@33 {
+ compatible = "st,stpmic1";
+ reg = <0x33>;
+ interrupts = <0 2>;
+ interrupts-extended = <&intc GIC_SPI 149 IRQ_TYPE_NONE>,
+ <&exti 55 1>;
+ st,version_status = <0x10>;
+ st,main-control-register=<0x0c>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ onkey {
+ compatible = "st,stpmic1-onkey";
+ interrupt-parent = <&pmic>;
+ interrupts = <IT_PONKEY_F 0>,<IT_PONKEY_R 1>;
+ interrupt-names = "onkey-falling", "onkey-rising";
+ st,onkey-pwroff-enabled;
+ st,onkey-long-press-seconds = <10>;
+ };
+
+ watchdog {
+ compatible = "st,stpmic1-wdt";
+ };
+
+ regulators {
+ compatible = "st,stpmic1-regulators";
+
+ vdd_core: buck1 {
+ regulator-name = "vdd_core";
+ regulator-boot-on;
+ regulator-min-microvolt = <700000>;
+ regulator-max-microvolt = <1200000>;
+ };
+ vdd: buck3 {
+ regulator-name = "vdd";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ regulator-pull-down;
+ };
+ };
diff --git a/include/dt-bindings/mfd/st,stpmic1.h b/include/dt-bindings/mfd/st,stpmic1.h
new file mode 100644
index 0000000..e32ac8f
--- /dev/null
+++ b/include/dt-bindings/mfd/st,stpmic1.h
@@ -0,0 +1,46 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) STMicroelectronics 2018 - All Rights Reserved
+ * Author: Philippe Peurichard <philippe.peurichard@...com>,
+ * Pascal Paillet <p.paillet@...com> for STMicroelectronics.
+ */
+
+#ifndef __DT_BINDINGS_STPMIC1_H__
+#define __DT_BINDINGS_STPMIC1_H__
+
+/* IRQ definitions */
+#define IT_PONKEY_F 0
+#define IT_PONKEY_R 1
+#define IT_WAKEUP_F 2
+#define IT_WAKEUP_R 3
+#define IT_VBUS_OTG_F 4
+#define IT_VBUS_OTG_R 5
+#define IT_SWOUT_F 6
+#define IT_SWOUT_R 7
+
+#define IT_CURLIM_BUCK1 8
+#define IT_CURLIM_BUCK2 9
+#define IT_CURLIM_BUCK3 10
+#define IT_CURLIM_BUCK4 11
+#define IT_OCP_OTG 12
+#define IT_OCP_SWOUT 13
+#define IT_OCP_BOOST 14
+#define IT_OVP_BOOST 15
+
+#define IT_CURLIM_LDO1 16
+#define IT_CURLIM_LDO2 17
+#define IT_CURLIM_LDO3 18
+#define IT_CURLIM_LDO4 19
+#define IT_CURLIM_LDO5 20
+#define IT_CURLIM_LDO6 21
+#define IT_SHORT_SWOTG 22
+#define IT_SHORT_SWOUT 23
+
+#define IT_TWARN_F 24
+#define IT_TWARN_R 25
+#define IT_VINLOW_F 26
+#define IT_VINLOW_R 27
+#define IT_SWIN_F 30
+#define IT_SWIN_R 31
+
+#endif /* __DT_BINDINGS_STPMIC1_H__ */
--
1.9.1
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