From patchwork Mon Aug 11 15:40:31 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Ivan T. Ivanov" X-Patchwork-Id: 379082 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3EEC314013A for ; Tue, 12 Aug 2014 01:43:15 +1000 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754175AbaHKPk5 (ORCPT ); Mon, 11 Aug 2014 11:40:57 -0400 Received: from ns.mm-sol.com ([37.157.136.199]:45763 "EHLO extserv.mm-sol.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754104AbaHKPk4 (ORCPT ); Mon, 11 Aug 2014 11:40:56 -0400 Received: from iivanov-dev.wifi.mm-sol.com (unknown [37.157.136.206]) by extserv.mm-sol.com (Postfix) with ESMTPSA id D3B14C7E9; Mon, 11 Aug 2014 18:40:53 +0300 (EEST) From: "Ivan T. Ivanov" To: Rob Herring , Pawel Moll , Mark Rutland , Ian Campbell , Kumar Gala Cc: "Ivan T. Ivanov" , Bjorn Andersson , linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v3 3/6] pinctrl: Add documentation for SPMI PMIC pinctrl driver bindings Date: Mon, 11 Aug 2014 18:40:31 +0300 Message-Id: <1407771634-14946-4-git-send-email-iivanov@mm-sol.com> X-Mailer: git-send-email 1.8.3.2 In-Reply-To: <1407771634-14946-1-git-send-email-iivanov@mm-sol.com> References: <1407771634-14946-1-git-send-email-iivanov@mm-sol.com> Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org From: "Ivan T. Ivanov" DeviceTree binding documentation for Qualcomm SPMI PMIC GPIO and MPP pinctrl drivers. Signed-off-by: Ivan T. Ivanov --- .../devicetree/bindings/pinctrl/qcom,pmic-gpio.txt | 4 + .../devicetree/bindings/pinctrl/qcom,pmic-mpp.txt | 179 +++++++++++++++++++++ include/dt-bindings/pinctrl/qcom,pmic-gpio.h | 35 ++++ include/dt-bindings/pinctrl/qcom,pmic-mpp.h | 70 ++++++++ 4 files changed, 288 insertions(+) create mode 100644 Documentation/devicetree/bindings/pinctrl/qcom,pmic-mpp.txt create mode 100644 include/dt-bindings/pinctrl/qcom,pmic-mpp.h diff --git a/Documentation/devicetree/bindings/pinctrl/qcom,pmic-gpio.txt b/Documentation/devicetree/bindings/pinctrl/qcom,pmic-gpio.txt index 7e57102..c2d01b4 100644 --- a/Documentation/devicetree/bindings/pinctrl/qcom,pmic-gpio.txt +++ b/Documentation/devicetree/bindings/pinctrl/qcom,pmic-gpio.txt @@ -12,6 +12,8 @@ Qualcomm. "qcom,pm8058-gpio" "qcom,pm8917-gpio" "qcom,pm8921-gpio" + "qcom,pm8941-gpio" + "qcom,pma8084-gpio" - reg: Usage: required @@ -74,6 +76,8 @@ to specify in a pin configuration subnode: gpio1-gpio40 for pm8058 gpio1-gpio38 for pm8917 gpio1-gpio44 for pm8921 + gpio1-gpio36 for pm8941 + gpio1-gpio22 for pma8084 - function: Usage: required diff --git a/Documentation/devicetree/bindings/pinctrl/qcom,pmic-mpp.txt b/Documentation/devicetree/bindings/pinctrl/qcom,pmic-mpp.txt new file mode 100644 index 0000000..0a64567 --- /dev/null +++ b/Documentation/devicetree/bindings/pinctrl/qcom,pmic-mpp.txt @@ -0,0 +1,179 @@ +Qualcomm PMIC Multi-Purpose Pin (MPP) block + +This binding describes the MPP block(s) found in the 8xxx series of pmics from +Qualcomm. + +- compatible: + Usage: required + Value type: + Definition: must be one of: + "qcom,pm8841-mpp" + "qcom,pm8941-mpp" + "qcom,pma8084-mpp" + +- reg: + Usage: required + Value type: + Definition: Register base of the gpio block + +- interrupts: + Usage: required + Value type: + Definition: Must contain an array of encoded interrupt specifiers for + each available gpio + +- gpio-controller: + Usage: required + Value type: + Definition: Mark the device node as a GPIO controller + +- #gpio-cells: + Usage: required + Value type: + Definition: Must be 2; + the first cell will be used to define gpio number and the + second denotes the flags for this gpio + +Please refer to ../gpio/gpio.txt and ../interrupt-controller/interrupts.txt for +a general description of GPIO and interrupt bindings. + +Please refer to pinctrl-bindings.txt in this directory for details of the +common pinctrl bindings used by client devices, including the meaning of the +phrase "pin configuration node". + +The pin configuration nodes act as a container for an abitrary number of +subnodes. Each of these subnodes represents some desired configuration for a +pin or a list of pins. This configuration can include the +mux function to select on those pin(s), and various pin configuration +parameters, as listed below. + + +SUBNODES: + +The name of each subnode is not important; all subnodes should be enumerated +and processed purely based on their content. + +Each subnode only affects those parameters that are explicitly listed. In +other words, a subnode that lists a mux function but no pin configuration +parameters implies no information about any pin configuration parameters. +Similarly, a pin subnode that describes a pullup parameter implies no +information about e.g. the mux function. + +The following generic properties as defined in pinctrl-bindings.txt are valid +to specify in a pin configuration subnode: + +- pins: + Usage: required + Value type: + Definition: List of gpio pins affected by the properties specified in + this subnode. Valid pins are: + mpp1-mpp4 for pm8841 + mpp1-mpp8 for pm8941 + mpp1-mpp4 for pma8084 + +- function: + Usage: optional + Value type: + Definition: Specify the alternative function to be configured for the + specified pins. Valid values are: + "normal", + "paired", + "dtest1", + "dtest2", + "dtest3", + "dtest4" + +- qcom,mode: + Usage: optional + Value type: + Definition: Selects MPP mode of operation: Digital Input, Digital Output, + Digital Input and Digital Output, Bidirectional Logic, + Analog Input, Analog Output, Current Sink Valid values are + defined in + PMIC_MPP_MODE_DI, PMIC_MPP_MODE_DO, PMIC_MPP_MODE_DIO... + +- bias-disable: + Usage: optional + Value type: + Definition: The specified pins should be configued as no pull. + +- bias-pull-up: + Usage: optional + Value type: + Definition: The specified pins should be configued as pull up. + Valid values are 600, 10000 and 30000. + +- bias-high-impedance: + Usage: optional + Value type: + Definition: The specified pins will put in high-Z mode and disabled. + +- input-enable: + Usage: optional + Value type: + Definition: The specified pins are put in input mode. + +- output-high: + Usage: optional + Value type: + Definition: The specified pins are configured in output mode, driven + high. + +- output-low: + Usage: optional + Value type: + Definition: The specified pins are configured in output mode, driven + low. + +- power-source: + Usage: optional + Value type: + Definition: Selects the power source for the specified pins. Valid only + when pin operate in Digital I/O mode ("gpio"). Valid + power sources are defined in + + +- drive-strength: + Usage: optional + Value type: + Definition: Selects the drive strength for the specified pins. Value + drive strengths are: 5-40mA with 5mA step + +- qcom,amux-route: + Usage: optional + Value type: + Definition: Selects the source for analog input. Valid values are + defined in + PMIC_MPP_AMUX_ROUTE_CH5, PMIC_MPP_AMUX_ROUTE_CH6... + +- qcom,vrefence: + Usage: optional + Value type: + Definition: Selects the analog output voltage reference. Valid values + are defined in + PMIC_MPP_VREFERENCE_1V25, PMIC_MPP_VREFERENCE_0V625... + +Example: + + mpps@a000 { + compatible = "qcom,pm8841-mpp"; + reg = <0xa000>; + gpio-controller; + #gpio-cells = <2>; + interrupts = <4 0xa0 0 0>, <4 0xa1 0 0>, <4 0xa2 0 0>, <4 0xa3 0 0>; + + pinctrl-names = "default"; + pinctrl-0 = <&pm8841_default>; + + pm8841_default: default { + gpio { + pins = "mpp1", "mpp2", "mpp3", "mpp4"; + function = "normal"; + + input-enable; + + power-source = ; + bias-pull-up = <600>; + }; + }; + }; diff --git a/include/dt-bindings/pinctrl/qcom,pmic-gpio.h b/include/dt-bindings/pinctrl/qcom,pmic-gpio.h index 994e748..b208fdd 100644 --- a/include/dt-bindings/pinctrl/qcom,pmic-gpio.h +++ b/include/dt-bindings/pinctrl/qcom,pmic-gpio.h @@ -63,6 +63,24 @@ #define PM8921_GPIO_L3 5 #define PM8921_GPIO_L17 6 +/* + * Note: PM8941 gpios from 15 to 18 are supporting + * only S3 and L6 options (1.8V) + */ +#define PM8941_GPIO_VPH 0 +#define PM8941_GPIO_L1 1 +#define PM8941_GPIO_S3 2 +#define PM8941_GPIO_L6 3 + +/* + * Note: PMA8084 gpios from 15 to 18 are supporting + * only S4 and L6 options (1.8V) + */ +#define PMA8084_GPIO_VPH 0 +#define PMA8084_GPIO_L1 1 +#define PMA8084_GPIO_S4 2 +#define PMA8084_GPIO_L6 3 + /* To be used with "function = " */ #define PMIC_GPIO_FUNC_NORMAL "normal" #define PMIC_GPIO_FUNC_PAIRED "paired" @@ -104,4 +122,21 @@ #define PM8917_GPIO37_38_XO_SLEEP_CLK PMIC_GPIO_FUNC_FUNC1 #define PM8917_GPIO37_38_MP3_CLK PMIC_GPIO_FUNC_FUNC2 +#define PM8941_GPIO9_14_KYPD_DRV PMIC_GPIO_FUNC_FUNC1 +#define PM8941_GPIO15_18_DIV_CLK PMIC_GPIO_FUNC_FUNC1 +#define PM8941_GPIO15_18_SLEEP_CLK PMIC_GPIO_FUNC_FUNC2 +#define PM8941_GPIO23_26_KYPD_DRV PMIC_GPIO_FUNC_FUNC1 +#define PM8941_GPIO23_26_LPG_DRV_HI PMIC_GPIO_FUNC_FUNC2 +#define PM8941_GPIO31_BAT_ALRM_OUT PMIC_GPIO_FUNC_FUNC1 +#define PM8941_GPIO33_36_LPG_DRV_3D PMIC_GPIO_FUNC_FUNC1 +#define PM8941_GPIO33_36_LPG_DRV_HI PMIC_GPIO_FUNC_FUNC2 + +#define PMA8084_GPIO4_5_LPG_DRV PMIC_GPIO_FUNC_FUNC1 +#define PMA8084_GPIO7_10_LPG_DRV PMIC_GPIO_FUNC_FUNC1 +#define PMA8084_GPIO5_14_KEYP_DRV PMIC_GPIO_FUNC_FUNC2 +#define PMA8084_GPIO19_21_KEYP_DRV PMIC_GPIO_FUNC_FUNC2 +#define PMA8084_GPIO15_18_DIV_CLK PMIC_GPIO_FUNC_FUNC1 +#define PMA8084_GPIO15_18_SLEEP_CLK PMIC_GPIO_FUNC_FUNC2 +#define PMA8084_GPIO22_BAT_ALRM_OUT PMIC_GPIO_FUNC_FUNC1 + #endif diff --git a/include/dt-bindings/pinctrl/qcom,pmic-mpp.h b/include/dt-bindings/pinctrl/qcom,pmic-mpp.h new file mode 100644 index 0000000..1bda99d --- /dev/null +++ b/include/dt-bindings/pinctrl/qcom,pmic-mpp.h @@ -0,0 +1,70 @@ +/* + * This header provides constants for the Qualcomm PMIC's + * Multi-Purpose Pin binding. + */ + +#ifndef _DT_BINDINGS_PINCTRL_QCOM_PMIC_MPP_H +#define _DT_BINDINGS_PINCTRL_QCOM_PMIC_MPP_H + +/* power-source */ +#define PM8841_MPP_VPH 0 +#define PM8841_MPP_S3 2 + +#define PM8941_MPP_VPH 0 +#define PM8941_MPP_L1 1 +#define PM8941_MPP_S3 2 +#define PM8941_MPP_L6 3 + +#define PMA8084_MPP_VPH 0 +#define PMA8084_MPP_L1 1 +#define PMA8084_MPP_S4 2 +#define PMA8084_MPP_L6 3 + +/* + * Analog Output - Set the analog output voltage reference. + * To be used with "qcom,vrefence = <>" + */ +#define PMIC_MPP_VREFERENCE_1V25 0 +#define PMIC_MPP_VREFERENCE_0V625 1 +#define PMIC_MPP_VREFERENCE_0V3125 2 +#define PMIC_MPP_VREFERENCE_PAIRED_MPP 3 +#define PMIC_MPP_VREFERENCE_ABUS1 4 +#define PMIC_MPP_VREFERENCE_ABUS2 5 +#define PMIC_MPP_VREFERENCE_ABUS3 6 +#define PMIC_MPP_VREFERENCE_ABUS4 7 + +/* + * Analog Input - Set the source for analog input. + * To be used with "qcom,amux-route = <>" + */ +#define PMIC_MPP_AMUX_ROUTE_CH5 0 +#define PMIC_MPP_AMUX_ROUTE_CH6 1 +#define PMIC_MPP_AMUX_ROUTE_CH7 2 +#define PMIC_MPP_AMUX_ROUTE_CH8 3 +#define PMIC_MPP_AMUX_ROUTE_ABUS1 4 +#define PMIC_MPP_AMUX_ROUTE_ABUS2 5 +#define PMIC_MPP_AMUX_ROUTE_ABUS3 6 +#define PMIC_MPP_AMUX_ROUTE_ABUS4 7 + +/* + * Mode select - indicates whether the pin should be digital input, output, both + * or analog input, output or current sink. To be used with "qcom,mode = <>" + */ +#define PMIC_MPP_MODE_DI 0 +#define PMIC_MPP_MODE_DO 1 +#define PMIC_MPP_MODE_DIO 2 +#define PMIC_MPP_MODE_AIO 3 +#define PMIC_MPP_MODE_AI 4 +#define PMIC_MPP_MODE_AO 5 +#define PMIC_MPP_MODE_CS 6 + +/* To be used with "function = " */ +#define PMIC_MPP_FUNC_NORMAL "normal" +#define PMIC_MPP_FUNC_PAIRED "paired" +#define PMIC_MPP_FUNC_DTEST1 "dtest1" +#define PMIC_MPP_FUNC_DTEST2 "dtest2" +#define PMIC_MPP_FUNC_DTEST3 "dtest3" +#define PMIC_MPP_FUNC_DTEST4 "dtest4" + +#endif +