From patchwork Tue May 26 09:06:41 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: saravanan sekar X-Patchwork-Id: 11570149 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 97149739 for ; Tue, 26 May 2020 09:07:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7FFB0208FE for ; Tue, 26 May 2020 09:07:39 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="E1Zn4Bon" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731650AbgEZJHM (ORCPT ); Tue, 26 May 2020 05:07:12 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53002 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726926AbgEZJHL (ORCPT ); Tue, 26 May 2020 05:07:11 -0400 Received: from mail-ej1-x643.google.com (mail-ej1-x643.google.com [IPv6:2a00:1450:4864:20::643]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CA8E2C03E97E; Tue, 26 May 2020 02:07:09 -0700 (PDT) Received: by mail-ej1-x643.google.com with SMTP id h21so22985441ejq.5; Tue, 26 May 2020 02:07:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=UoSXv7d+tfcbmDpE4494j4outc83bbmJfjPfvWfKgp8=; b=E1Zn4BonDAZfXqeAVoIjieZScLB7xEcTXC1txRzXUH4cyZuLA90KwdC3EGMqnnoZ6G Vz66XzILh53/4yZY/rakDIuLG7uD1RRlR04D7G8RyKZzVjzS+W8EI0Wc3X7cdzsumNUE Dzz6EGyrlOHlNtQsJxHgEVspJVj9iZK+wmtBqxCgfWfdsAygkJ/en15AQnPDPVKPFB57 9GwUtAQixdqFK8BqJeiBCzYaPC7ElJ9gj2NBOEOypsWmQp1lI92n8UGl2PweDeDq3fy2 houOrcj/9t9hbcJyGHNeiOhn6JogBApRhxPm7A127Uzhxm55Xd+5K4MRI2aY2M5yn+Rc jl2Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=UoSXv7d+tfcbmDpE4494j4outc83bbmJfjPfvWfKgp8=; b=Axrr/A44fDgQ71uR6ojYsmFaxyqShDnGOxk/YFRsBVoKmBrSLtFxFBOgvtlyW9F7wJ KRT/YWOhGmIdvgM0BB9H7cceKHhs1d7CRBLWF+kOGvvn9JjBA38aKlgrzc7TfZ60HC1u 9LxScmlgvXW5dV7FklWumK/lFEbB5kzPWjXvf8vLrkJTeHy9K/UXbqxTHA3dQM/iO3s0 KVYDsBILNCB7kZUjPUFZNbavFjeF4ttcq9ih9BR3eAC2L7tiSpT9nldDVfvwfzw7Ps8Z QIFJlfiIMslF9qN1vBdTv7VeCdblixHL+cEptHGj8MT2WTlhx89KzK8QbpFEXzScs7Cg QKng== X-Gm-Message-State: AOAM530R4T7K+DJ/NrvFGdnwampg2AIhI3H050Nr+xf/Wjphrl5aecyR 7LNj95n1HXl54mG60rxX7svEKAAVp3g= X-Google-Smtp-Source: ABdhPJwpvX+VTKRQ21Tskdgdffg+/i7CV0+SqALml+Alne2V/whW+p7h/YP7ZJIKMZawfplBQexcEA== X-Received: by 2002:a17:906:3944:: with SMTP id g4mr237901eje.55.1590484028537; Tue, 26 May 2020 02:07:08 -0700 (PDT) Received: from localhost.localdomain (p5b3f6e09.dip0.t-ipconnect.de. [91.63.110.9]) by smtp.gmail.com with ESMTPSA id c7sm17870535edj.54.2020.05.26.02.07.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 26 May 2020 02:07:07 -0700 (PDT) From: Saravanan Sekar To: lee.jones@linaro.org, andy.shevchenko@gmail.com, robh+dt@kernel.org, jic23@kernel.org, knaack.h@gmx.de, lars@metafoo.de, pmeerw@pmeerw.net, sre@kernel.org Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-iio@vger.kernel.org, linux-pm@vger.kernel.org, sravanhome@gmail.com Subject: [PATCH v12 1/6] dt-bindings: mfd: add document bindings for mp2629 Date: Tue, 26 May 2020 11:06:41 +0200 Message-Id: <20200526090646.25827-2-sravanhome@gmail.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200526090646.25827-1-sravanhome@gmail.com> References: <20200526090646.25827-1-sravanhome@gmail.com> Sender: linux-iio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org Add device tree binding information for mp2629 mfd driver. Signed-off-by: Saravanan Sekar Reviewed-by: Andy Shevchenko Reviewed-by: Rob Herring Acked-for-MFD-by: Lee Jones --- .../devicetree/bindings/mfd/mps,mp2629.yaml | 62 +++++++++++++++++++ 1 file changed, 62 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/mps,mp2629.yaml diff --git a/Documentation/devicetree/bindings/mfd/mps,mp2629.yaml b/Documentation/devicetree/bindings/mfd/mps,mp2629.yaml new file mode 100644 index 000000000000..f91acc42d652 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/mps,mp2629.yaml @@ -0,0 +1,62 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mfd/mps,mp2629.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: MP2629 Battery Charger PMIC from Monolithic Power System. + +maintainers: + - Saravanan Sekar + +description: | + MP2629 is a PMIC providing battery charging and power supply for smartphones, + wireless camera and portable devices. Chip is controlled over I2C. + + The battery charge management device handles battery charger controller and + ADC IIO device for battery, system voltage + +properties: + compatible: + const: mps,mp2629 + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + interrupt-controller: true + + "#interrupt-cells": + const: 2 + description: + The first cell is the IRQ number, the second cell is the trigger type. + +required: + - compatible + - reg + - interrupts + - interrupt-controller + - "#interrupt-cells" + +additionalProperties: false + +examples: + - | + #include + #include + i2c { + #address-cells = <1>; + #size-cells = <0>; + + pmic@4b { + compatible = "mps,mp2629"; + reg = <0x4b>; + + interrupt-controller; + interrupt-parent = <&gpio2>; + #interrupt-cells = <2>; + interrupts = <3 IRQ_TYPE_LEVEL_HIGH>; + }; + }; From patchwork Tue May 26 09:06:42 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: saravanan sekar X-Patchwork-Id: 11570147 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 82311166C for ; Tue, 26 May 2020 09:07:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6A69720776 for ; Tue, 26 May 2020 09:07:37 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="Rlte439q" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731694AbgEZJHO (ORCPT ); Tue, 26 May 2020 05:07:14 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53006 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731686AbgEZJHM (ORCPT ); Tue, 26 May 2020 05:07:12 -0400 Received: from mail-ej1-x644.google.com (mail-ej1-x644.google.com [IPv6:2a00:1450:4864:20::644]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7D14FC08C5C0; Tue, 26 May 2020 02:07:11 -0700 (PDT) Received: by mail-ej1-x644.google.com with SMTP id se13so22946670ejb.9; Tue, 26 May 2020 02:07:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=nlDIilwYwV1zJ/5UpzRe186tJyTDoPOuA7TdGu5+FKA=; b=Rlte439q1xyFrVKqgsWgAW7top1FNgOE33wUlh5Qe21oaPiBn4rsSo/wyTMBDmvhUR ZPKo8TuQtQULU+YEgfmj6TBX0w6EtqoZ7wxSx1kAiiT8OKrVXcuqYUlvJtm60uUdd6Dr ehE+4aA86r7P0+1odFNI2jUbHljkJp8Xo4GluBhTMZZU3OiRANMHggdqEzEA1K9lhL1Z NLesUoXe04RmLgiUkAcCJ3Ss9/TGbH1XVDOh9zoXpiqu48oLkyij33rMgz+PGkEu6ERC bglVQyvi8UWXk86s+iE2cdl6urYouasFqDT6Y+hbYYEXJuWN64iM423zdBBhUZNEzrRj qR9g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=nlDIilwYwV1zJ/5UpzRe186tJyTDoPOuA7TdGu5+FKA=; b=lpogAfu+IZodWNdeg4g6+DIqt7kaVMmLi1FlBXULmKVs9B9PIyWKE69ujeIrWp96i7 YKRl7DIpzichUDLYwXeqtjbLTJouiRftf6N9Ck1YScpwPmW5qf43lWQwRuVp/6FSVbs+ dHtZqIG3ivNjmOlG6zxKeRFYspd3N0aI5E2lzHuClc4kXYwdpkhGvtYQCl9lhBrVvL9N Y8dAvx8Anxqh009VUR+PfLTva3ipyzjZOigEvAZDQGW52PR0M2y7FHHSsvfzvP5FCZ02 j7CgAo1rPOLiGGmXEWN6/avdxZh30GKxg0nral6Pd6KQOXqVvwXELnMi3ge9I4ZQceha GV3g== X-Gm-Message-State: AOAM5310fHsYfihoxH+qE791YXCpiwFuI9Gi50qYS1IAHNcijeKLBt66 IkSMY4wOt/JtYHYhmM4GTsy9QJnkkgk= X-Google-Smtp-Source: ABdhPJywbOKDfJab+7FhHtogNZTag82rSu+oHiOgC4qXtC48zW+GRxCHmXHDLkBilmcisaoTCLHE4Q== X-Received: by 2002:a17:906:a417:: with SMTP id l23mr233975ejz.213.1590484030166; Tue, 26 May 2020 02:07:10 -0700 (PDT) Received: from localhost.localdomain (p5b3f6e09.dip0.t-ipconnect.de. [91.63.110.9]) by smtp.gmail.com with ESMTPSA id c7sm17870535edj.54.2020.05.26.02.07.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 26 May 2020 02:07:09 -0700 (PDT) From: Saravanan Sekar To: lee.jones@linaro.org, andy.shevchenko@gmail.com, robh+dt@kernel.org, jic23@kernel.org, knaack.h@gmx.de, lars@metafoo.de, pmeerw@pmeerw.net, sre@kernel.org Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-iio@vger.kernel.org, linux-pm@vger.kernel.org, sravanhome@gmail.com Subject: [PATCH v12 2/6] mfd: mp2629: Add support for mps battery charger Date: Tue, 26 May 2020 11:06:42 +0200 Message-Id: <20200526090646.25827-3-sravanhome@gmail.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200526090646.25827-1-sravanhome@gmail.com> References: <20200526090646.25827-1-sravanhome@gmail.com> Sender: linux-iio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org mp2629 is a highly-integrated switching-mode battery charge management device for single-cell Li-ion or Li-polymer battery. Add MFD core enables chip access for ADC driver for battery readings, and a power supply battery-charger driver Signed-off-by: Saravanan Sekar Reviewed-by: Andy Shevchenko Reviewed-by: Jonathan Cameron Acked-for-MFD-by: Lee Jones --- drivers/mfd/Kconfig | 9 +++++ drivers/mfd/Makefile | 2 + drivers/mfd/mp2629.c | 79 ++++++++++++++++++++++++++++++++++++++ include/linux/mfd/mp2629.h | 17 ++++++++ 4 files changed, 107 insertions(+) create mode 100644 drivers/mfd/mp2629.c create mode 100644 include/linux/mfd/mp2629.h diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 3c547ed575e6..fbf287098970 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -434,6 +434,15 @@ config MFD_MC13XXX_I2C help Select this if your MC13xxx is connected via an I2C bus. +config MFD_MP2629 + tristate "Monolithic Power Systems MP2629 ADC and Battery charger" + depends on I2C + select REGMAP_I2C + help + Select this option to enable support for Monolithic Power Systems + battery charger. This provides ADC, thermal and battery charger power + management functions. + config MFD_MXS_LRADC tristate "Freescale i.MX23/i.MX28 LRADC" depends on ARCH_MXS || COMPILE_TEST diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index f935d10cbf0f..d6c210f96d02 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -170,6 +170,8 @@ obj-$(CONFIG_MFD_MAX8925) += max8925.o obj-$(CONFIG_MFD_MAX8997) += max8997.o max8997-irq.o obj-$(CONFIG_MFD_MAX8998) += max8998.o max8998-irq.o +obj-$(CONFIG_MFD_MP2629) += mp2629.o + pcf50633-objs := pcf50633-core.o pcf50633-irq.o obj-$(CONFIG_MFD_PCF50633) += pcf50633.o obj-$(CONFIG_PCF50633_ADC) += pcf50633-adc.o diff --git a/drivers/mfd/mp2629.c b/drivers/mfd/mp2629.c new file mode 100644 index 000000000000..16840ec5fd1c --- /dev/null +++ b/drivers/mfd/mp2629.c @@ -0,0 +1,79 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * MP2629 parent driver for ADC and battery charger + * + * Copyright 2020 Monolithic Power Systems, Inc + * + * Author: Saravanan Sekar + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +static const struct mfd_cell mp2629_cell[] = { + { + .name = "mp2629_adc", + .of_compatible = "mps,mp2629_adc", + }, + { + .name = "mp2629_charger", + .of_compatible = "mps,mp2629_charger", + } +}; + +static const struct regmap_config mp2629_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + .max_register = 0x17, +}; + +static int mp2629_probe(struct i2c_client *client) +{ + struct mp2629_data *ddata; + int ret; + + ddata = devm_kzalloc(&client->dev, sizeof(*ddata), GFP_KERNEL); + if (!ddata) + return -ENOMEM; + + ddata->dev = &client->dev; + i2c_set_clientdata(client, ddata); + + ddata->regmap = devm_regmap_init_i2c(client, &mp2629_regmap_config); + if (IS_ERR(ddata->regmap)) { + dev_err(ddata->dev, "Failed to allocate regmap\n"); + return PTR_ERR(ddata->regmap); + } + + ret = devm_mfd_add_devices(ddata->dev, PLATFORM_DEVID_AUTO, mp2629_cell, + ARRAY_SIZE(mp2629_cell), NULL, 0, NULL); + if (ret) + dev_err(ddata->dev, "Failed to register sub-devices %d\n", ret); + + return ret; +} + +static const struct of_device_id mp2629_of_match[] = { + { .compatible = "mps,mp2629"}, + { } +}; +MODULE_DEVICE_TABLE(of, mp2629_of_match); + +static struct i2c_driver mp2629_driver = { + .driver = { + .name = "mp2629", + .of_match_table = mp2629_of_match, + }, + .probe_new = mp2629_probe, +}; +module_i2c_driver(mp2629_driver); + +MODULE_AUTHOR("Saravanan Sekar "); +MODULE_DESCRIPTION("MP2629 Battery charger parent driver"); +MODULE_LICENSE("GPL"); diff --git a/include/linux/mfd/mp2629.h b/include/linux/mfd/mp2629.h new file mode 100644 index 000000000000..baaeeaf82949 --- /dev/null +++ b/include/linux/mfd/mp2629.h @@ -0,0 +1,17 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright 2020 Monolithic Power Systems, Inc + */ + +#ifndef __MP2629_H__ +#define __MP2629_H__ + +#include +#include + +struct mp2629_data { + struct device *dev; + struct regmap *regmap; +}; + +#endif From patchwork Tue May 26 09:06:43 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: saravanan sekar X-Patchwork-Id: 11570131 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 6B47292A for ; Tue, 26 May 2020 09:07:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4A6B42073B for ; Tue, 26 May 2020 09:07:22 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="rk8i63nh" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731709AbgEZJHP (ORCPT ); Tue, 26 May 2020 05:07:15 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53014 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731643AbgEZJHO (ORCPT ); Tue, 26 May 2020 05:07:14 -0400 Received: from mail-ej1-x642.google.com (mail-ej1-x642.google.com [IPv6:2a00:1450:4864:20::642]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DCA1FC03E97E; Tue, 26 May 2020 02:07:12 -0700 (PDT) Received: by mail-ej1-x642.google.com with SMTP id a2so22939616ejb.10; Tue, 26 May 2020 02:07:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=mN7PIiW/uJmPVRRc3gitCYGDpy1BsqKdRjL2eMQ/8Vk=; b=rk8i63nhqAUeJncanJWToySo10SFAsWnuF2XfYHxYyVbWItnbCzKy9gFBULO80/qSs 9o2zkR87iXz1656ZlhRtvV+HyGda5MWDz4PPoxh/E4NWVKsEh9xrrrtvlymErpP4aBzw MVpJT8n0OPGwg1f6fvfjrh1xUmziUpQ2wnQ2u8ZPhbS4sobKzhVaB4zUYUVcsk63au3S u2lNx7ubszDE/Xse/f5xJBo6RULCYfSdurarG6zTo7td1sHzHMufz/PyKLCc49Sv7tHX YyKFFXPPbjfBeFdHZA/S/O+oVVl0iLH4/QEItkMpBpbTkQ3ftad6zezrN/4GffDBzbxX Ms2g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=mN7PIiW/uJmPVRRc3gitCYGDpy1BsqKdRjL2eMQ/8Vk=; b=QNFt97bOzEbNfrtwPCGNsvjKdLl4Wsaoaa6G0ATHKtDjAbzCcUcJrC8xXgl8g/TeUp PuT8gMs3wc/yXWo4KysrWkSyB5CoAcuWKGrUogmwoXiDKe82CsLUwZu9W/+LWT7Qty9B bQk2mt2SV6l7STU5Rkc/1wQnbuSt+0uwVVE+DmXbU4AWqCZIDKZvf07zZFumjQ2IgMfe eOaTJIQJfIjIZFxH7bLziQMMybH0W3RHygOuQe09+5e7Fv9o149e69XmhI+j1dI89JCf b6V2EqiXLkGliYEUofaG3e4mQFM11KF4fpT/w7qUAeFBT2ZIz2UsRX8LSUMRguHPX8P0 Z83g== X-Gm-Message-State: AOAM5316SCSBO+QOtIX/VYyzg5u7RA93mNEyOCfwlsOv3HHTfSXL5w2L p6E9fBcNE93OhlJclsPzjN4= X-Google-Smtp-Source: ABdhPJyGj88y90DSUiFVVyYl71uPXtDvPc2ztKSInIOXM3YyMY148Wv45yUm4td0InvdBPp5CalXug== X-Received: by 2002:a17:906:6951:: with SMTP id c17mr234795ejs.87.1590484031561; Tue, 26 May 2020 02:07:11 -0700 (PDT) Received: from localhost.localdomain (p5b3f6e09.dip0.t-ipconnect.de. [91.63.110.9]) by smtp.gmail.com with ESMTPSA id c7sm17870535edj.54.2020.05.26.02.07.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 26 May 2020 02:07:10 -0700 (PDT) From: Saravanan Sekar To: lee.jones@linaro.org, andy.shevchenko@gmail.com, robh+dt@kernel.org, jic23@kernel.org, knaack.h@gmx.de, lars@metafoo.de, pmeerw@pmeerw.net, sre@kernel.org Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-iio@vger.kernel.org, linux-pm@vger.kernel.org, sravanhome@gmail.com Subject: [PATCH v12 3/6] iio: adc: mp2629: Add support for mp2629 ADC driver Date: Tue, 26 May 2020 11:06:43 +0200 Message-Id: <20200526090646.25827-4-sravanhome@gmail.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200526090646.25827-1-sravanhome@gmail.com> References: <20200526090646.25827-1-sravanhome@gmail.com> Sender: linux-iio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org Add support for 8-bit resolution ADC readings for input power supply and battery charging measurement. Provides voltage, current readings to mp2629 power supply driver. Signed-off-by: Saravanan Sekar Reviewed-by: Andy Shevchenko Reviewed-by: Jonathan Cameron Acked-for-MFD-by: Lee Jones --- drivers/iio/adc/Kconfig | 10 ++ drivers/iio/adc/Makefile | 1 + drivers/iio/adc/mp2629_adc.c | 208 +++++++++++++++++++++++++++++++++++ include/linux/mfd/mp2629.h | 9 ++ 4 files changed, 228 insertions(+) create mode 100644 drivers/iio/adc/mp2629_adc.c diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig index 82e33082958c..ef0c0cd31855 100644 --- a/drivers/iio/adc/Kconfig +++ b/drivers/iio/adc/Kconfig @@ -680,6 +680,16 @@ config MESON_SARADC To compile this driver as a module, choose M here: the module will be called meson_saradc. +config MP2629_ADC + tristate "Monolithic MP2629 ADC driver" + depends on MFD_MP2629 + help + Say yes to have support for battery charger IC MP2629 ADC device + accessed over I2C. + + This driver provides ADC conversion of system, input power supply + and battery voltage & current information. + config NAU7802 tristate "Nuvoton NAU7802 ADC driver" depends on I2C diff --git a/drivers/iio/adc/Makefile b/drivers/iio/adc/Makefile index 919228900df9..f14416c245a6 100644 --- a/drivers/iio/adc/Makefile +++ b/drivers/iio/adc/Makefile @@ -64,6 +64,7 @@ obj-$(CONFIG_MCP3911) += mcp3911.o obj-$(CONFIG_MEDIATEK_MT6577_AUXADC) += mt6577_auxadc.o obj-$(CONFIG_MEN_Z188_ADC) += men_z188_adc.o obj-$(CONFIG_MESON_SARADC) += meson_saradc.o +obj-$(CONFIG_MP2629_ADC) += mp2629_adc.o obj-$(CONFIG_MXS_LRADC_ADC) += mxs-lradc-adc.o obj-$(CONFIG_NAU7802) += nau7802.o obj-$(CONFIG_NPCM_ADC) += npcm_adc.o diff --git a/drivers/iio/adc/mp2629_adc.c b/drivers/iio/adc/mp2629_adc.c new file mode 100644 index 000000000000..331a9a728217 --- /dev/null +++ b/drivers/iio/adc/mp2629_adc.c @@ -0,0 +1,208 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * MP2629 Driver for ADC + * + * Copyright 2020 Monolithic Power Systems, Inc + * + * Author: Saravanan Sekar + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#define MP2629_REG_ADC_CTRL 0x03 +#define MP2629_REG_BATT_VOLT 0x0e +#define MP2629_REG_SYSTEM_VOLT 0x0f +#define MP2629_REG_INPUT_VOLT 0x11 +#define MP2629_REG_BATT_CURRENT 0x12 +#define MP2629_REG_INPUT_CURRENT 0x13 + +#define MP2629_ADC_START BIT(7) +#define MP2629_ADC_CONTINUOUS BIT(6) + +#define MP2629_MAP(_mp, _mpc) IIO_MAP(#_mp, "mp2629_charger", "mp2629-"_mpc) + +#define MP2629_ADC_CHAN(_ch, _type) { \ + .type = _type, \ + .indexed = 1, \ + .datasheet_name = #_ch, \ + .channel = MP2629_ ## _ch, \ + .address = MP2629_REG_ ## _ch, \ + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \ + .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE), \ +} + +struct mp2629_adc { + struct regmap *regmap; + struct device *dev; +}; + +static struct iio_chan_spec mp2629_channels[] = { + MP2629_ADC_CHAN(BATT_VOLT, IIO_VOLTAGE), + MP2629_ADC_CHAN(SYSTEM_VOLT, IIO_VOLTAGE), + MP2629_ADC_CHAN(INPUT_VOLT, IIO_VOLTAGE), + MP2629_ADC_CHAN(BATT_CURRENT, IIO_CURRENT), + MP2629_ADC_CHAN(INPUT_CURRENT, IIO_CURRENT) +}; + +static struct iio_map mp2629_adc_maps[] = { + MP2629_MAP(BATT_VOLT, "batt-volt"), + MP2629_MAP(SYSTEM_VOLT, "system-volt"), + MP2629_MAP(INPUT_VOLT, "input-volt"), + MP2629_MAP(BATT_CURRENT, "batt-current"), + MP2629_MAP(INPUT_CURRENT, "input-current") +}; + +static int mp2629_read_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int *val, int *val2, long mask) +{ + struct mp2629_adc *info = iio_priv(indio_dev); + unsigned int rval; + int ret; + + switch (mask) { + case IIO_CHAN_INFO_RAW: + ret = regmap_read(info->regmap, chan->address, &rval); + if (ret) + return ret; + + if (chan->address == MP2629_INPUT_VOLT) + rval &= GENMASK(6, 0); + *val = rval; + return IIO_VAL_INT; + + case IIO_CHAN_INFO_SCALE: + switch (chan->channel) { + case MP2629_BATT_VOLT: + case MP2629_SYSTEM_VOLT: + *val = 20; + return IIO_VAL_INT; + + case MP2629_INPUT_VOLT: + *val = 60; + return IIO_VAL_INT; + + case MP2629_BATT_CURRENT: + *val = 175; + *val2 = 10; + return IIO_VAL_FRACTIONAL; + + case MP2629_INPUT_CURRENT: + *val = 133; + *val2 = 10; + return IIO_VAL_FRACTIONAL; + + default: + return -EINVAL; + } + + default: + return -EINVAL; + } +} + +static const struct iio_info mp2629_adc_info = { + .read_raw = &mp2629_read_raw, +}; + +static int mp2629_adc_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct mp2629_data *ddata = dev_get_drvdata(dev->parent); + struct mp2629_adc *info; + struct iio_dev *indio_dev; + int ret; + + indio_dev = devm_iio_device_alloc(dev, sizeof(*info)); + if (!indio_dev) + return -ENOMEM; + + info = iio_priv(indio_dev); + info->regmap = ddata->regmap; + info->dev = dev; + platform_set_drvdata(pdev, indio_dev); + + ret = regmap_update_bits(info->regmap, MP2629_REG_ADC_CTRL, + MP2629_ADC_START | MP2629_ADC_CONTINUOUS, + MP2629_ADC_START | MP2629_ADC_CONTINUOUS); + if (ret) { + dev_err(dev, "adc enable fail: %d\n", ret); + return ret; + } + + ret = iio_map_array_register(indio_dev, mp2629_adc_maps); + if (ret) { + dev_err(dev, "IIO maps register fail: %d\n", ret); + goto fail_disable; + } + + indio_dev->name = "mp2629-adc"; + indio_dev->dev.parent = dev; + indio_dev->channels = mp2629_channels; + indio_dev->num_channels = ARRAY_SIZE(mp2629_channels); + indio_dev->modes = INDIO_DIRECT_MODE; + indio_dev->info = &mp2629_adc_info; + + ret = iio_device_register(indio_dev); + if (ret) { + dev_err(dev, "IIO device register fail: %d\n", ret); + goto fail_map_unregister; + } + + return 0; + +fail_map_unregister: + iio_map_array_unregister(indio_dev); + +fail_disable: + regmap_update_bits(info->regmap, MP2629_REG_ADC_CTRL, + MP2629_ADC_CONTINUOUS, 0); + regmap_update_bits(info->regmap, MP2629_REG_ADC_CTRL, + MP2629_ADC_START, 0); + + return ret; +} + +static int mp2629_adc_remove(struct platform_device *pdev) +{ + struct iio_dev *indio_dev = platform_get_drvdata(pdev); + struct mp2629_adc *info = iio_priv(indio_dev); + + iio_device_unregister(indio_dev); + + iio_map_array_unregister(indio_dev); + + regmap_update_bits(info->regmap, MP2629_REG_ADC_CTRL, + MP2629_ADC_CONTINUOUS, 0); + regmap_update_bits(info->regmap, MP2629_REG_ADC_CTRL, + MP2629_ADC_START, 0); + + return 0; +} + +static const struct of_device_id mp2629_adc_of_match[] = { + { .compatible = "mps,mp2629_adc"}, + {} +}; +MODULE_DEVICE_TABLE(of, mp2629_adc_of_match); + +static struct platform_driver mp2629_adc_driver = { + .driver = { + .name = "mp2629_adc", + .of_match_table = mp2629_adc_of_match, + }, + .probe = mp2629_adc_probe, + .remove = mp2629_adc_remove, +}; +module_platform_driver(mp2629_adc_driver); + +MODULE_AUTHOR("Saravanan Sekar "); +MODULE_DESCRIPTION("MP2629 ADC driver"); +MODULE_LICENSE("GPL"); diff --git a/include/linux/mfd/mp2629.h b/include/linux/mfd/mp2629.h index baaeeaf82949..89b706900b57 100644 --- a/include/linux/mfd/mp2629.h +++ b/include/linux/mfd/mp2629.h @@ -14,4 +14,13 @@ struct mp2629_data { struct regmap *regmap; }; +enum mp2629_adc_chan { + MP2629_BATT_VOLT, + MP2629_SYSTEM_VOLT, + MP2629_INPUT_VOLT, + MP2629_BATT_CURRENT, + MP2629_INPUT_CURRENT, + MP2629_ADC_CHAN_END +}; + #endif From patchwork Tue May 26 09:06:44 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: saravanan sekar X-Patchwork-Id: 11570135 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id BA404739 for ; Tue, 26 May 2020 09:07:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 99AA920776 for ; Tue, 26 May 2020 09:07:27 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="kJ7wN1yX" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731655AbgEZJHW (ORCPT ); Tue, 26 May 2020 05:07:22 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53018 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731701AbgEZJHO (ORCPT ); Tue, 26 May 2020 05:07:14 -0400 Received: from mail-ej1-x643.google.com (mail-ej1-x643.google.com [IPv6:2a00:1450:4864:20::643]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6EA4FC08C5C0; Tue, 26 May 2020 02:07:14 -0700 (PDT) Received: by mail-ej1-x643.google.com with SMTP id z5so23018461ejb.3; Tue, 26 May 2020 02:07:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=Nx6XMpViuiMDaG1YQ4VXL9IBuQ9pBNFcR5zrxJku8x8=; b=kJ7wN1yXro21xVIm3KfIe3QY2Ft+3eCT4BNMJlukeP7A/5wQj/ibc0VC22iyMoeHxd 3h/di4pP2YlEZyd6uDtEY9h1ozQ3dW4o8848L1HH0hv3h+tbunE/qgQIynU8tCoTOQ4k tRZHHbRaXhB9EZIH7VbhMQyVhJdN0gylLvp6SQzuzz5SbUW3bjYhBSmMyZsCVtR8N0PP QTg6IOSswIwsyLVWvLzbW42zTCgRnNS8lANCC2zZq9AULiwVz+n6FzOukp3bFBCpJh9i xVSxZmXqeZcFop8EBv+zNQSPHFbPyotZVt4gDRPrj2fg/ttjWedo4iZuc1gNphCfLUR+ A0PQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=Nx6XMpViuiMDaG1YQ4VXL9IBuQ9pBNFcR5zrxJku8x8=; b=HlzmmK21Cyf9Oi/mx6kPTlqrzQKXvr5YJXRPJMV9jCHSjQ6f5GIL5bdFe0VA6MusiU AOY/mZ7bULET7Z0IsjKrQwdDkLJCm/8QTAQAfxsNf0r1zQ4JMPofZmUFKbL0pMohB065 BpaeHSzDDmBS9mOaIH3ISDmVBiHIdlzQFWv4BHDlHpIdGKjDz2tpO9o3Ntjt8nVQx4XB 2W61qRuyvFK0DOesPN7V3pLSLt52tcoD6ocv2rYpziDFxmEYe8LE1GxvXvN8mBrpI1DY 7R4f6jVVEqX1ghFX5vTsE3eI43vpDz4LnwtbylLT9Te9BnlD9jW0NACc/N4Z/Pq49nuq SxFQ== X-Gm-Message-State: AOAM532Ee9VVBfGMDIPigM9OZ7DP5xKeNfDAX4kavNnYt6HhkDV/F8/W xkD2eadeIHnryof1LgPw9l0= X-Google-Smtp-Source: ABdhPJxF4hIm+4JxXl7Es9Qv2TB12oNbQPVnUAQW18ZG6ycnCsykqX7KUIs1btTYVE1vhPipUPmo6g== X-Received: by 2002:a17:906:f743:: with SMTP id jp3mr235715ejb.101.1590484032999; Tue, 26 May 2020 02:07:12 -0700 (PDT) Received: from localhost.localdomain (p5b3f6e09.dip0.t-ipconnect.de. [91.63.110.9]) by smtp.gmail.com with ESMTPSA id c7sm17870535edj.54.2020.05.26.02.07.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 26 May 2020 02:07:11 -0700 (PDT) From: Saravanan Sekar To: lee.jones@linaro.org, andy.shevchenko@gmail.com, robh+dt@kernel.org, jic23@kernel.org, knaack.h@gmx.de, lars@metafoo.de, pmeerw@pmeerw.net, sre@kernel.org Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-iio@vger.kernel.org, linux-pm@vger.kernel.org, sravanhome@gmail.com Subject: [PATCH v12 4/6] power: supply: Add support for mps mp2629 battery charger Date: Tue, 26 May 2020 11:06:44 +0200 Message-Id: <20200526090646.25827-5-sravanhome@gmail.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200526090646.25827-1-sravanhome@gmail.com> References: <20200526090646.25827-1-sravanhome@gmail.com> Sender: linux-iio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org The mp2629 provides switching-mode battery charge management for single-cell Li-ion or Li-polymer battery. Driver supports the access/control input source and battery charging parameters. Signed-off-by: Saravanan Sekar Reviewed-by: Andy Shevchenko Reviewed-by: Sebastian Reichel Acked-for-MFD-by: Lee Jones --- drivers/power/supply/Kconfig | 10 + drivers/power/supply/Makefile | 1 + drivers/power/supply/mp2629_charger.c | 669 ++++++++++++++++++++++++++ 3 files changed, 680 insertions(+) create mode 100644 drivers/power/supply/mp2629_charger.c diff --git a/drivers/power/supply/Kconfig b/drivers/power/supply/Kconfig index f3424fdce341..a46643f5e2fb 100644 --- a/drivers/power/supply/Kconfig +++ b/drivers/power/supply/Kconfig @@ -541,6 +541,16 @@ config CHARGER_MAX8998 Say Y to enable support for the battery charger control sysfs and platform data of MAX8998/LP3974 PMICs. +config CHARGER_MP2629 + tristate "Monolithic power system MP2629 Battery charger" + depends on MFD_MP2629 + depends on MP2629_ADC + depends on IIO + help + Select this option to enable support for Monolithic power system + Battery charger. This driver provides Battery charger power management + functions on the systems. + config CHARGER_QCOM_SMBB tristate "Qualcomm Switch-Mode Battery Charger and Boost" depends on MFD_SPMI_PMIC || COMPILE_TEST diff --git a/drivers/power/supply/Makefile b/drivers/power/supply/Makefile index 6c7da920ea83..41cb64f09e49 100644 --- a/drivers/power/supply/Makefile +++ b/drivers/power/supply/Makefile @@ -75,6 +75,7 @@ obj-$(CONFIG_CHARGER_MAX77650) += max77650-charger.o obj-$(CONFIG_CHARGER_MAX77693) += max77693_charger.o obj-$(CONFIG_CHARGER_MAX8997) += max8997_charger.o obj-$(CONFIG_CHARGER_MAX8998) += max8998_charger.o +obj-$(CONFIG_CHARGER_MP2629) += mp2629_charger.o obj-$(CONFIG_CHARGER_QCOM_SMBB) += qcom_smbb.o obj-$(CONFIG_CHARGER_BQ2415X) += bq2415x_charger.o obj-$(CONFIG_CHARGER_BQ24190) += bq24190_charger.o diff --git a/drivers/power/supply/mp2629_charger.c b/drivers/power/supply/mp2629_charger.c new file mode 100644 index 000000000000..bdf924b73e47 --- /dev/null +++ b/drivers/power/supply/mp2629_charger.c @@ -0,0 +1,669 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * MP2629 battery charger driver + * + * Copyright 2020 Monolithic Power Systems, Inc + * + * Author: Saravanan Sekar + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define MP2629_REG_INPUT_ILIM 0x00 +#define MP2629_REG_INPUT_VLIM 0x01 +#define MP2629_REG_CHARGE_CTRL 0x04 +#define MP2629_REG_CHARGE_ILIM 0x05 +#define MP2629_REG_PRECHARGE 0x06 +#define MP2629_REG_TERM_CURRENT 0x06 +#define MP2629_REG_CHARGE_VLIM 0x07 +#define MP2629_REG_TIMER_CTRL 0x08 +#define MP2629_REG_IMPEDANCE_COMP 0x09 +#define MP2629_REG_INTERRUPT 0x0b +#define MP2629_REG_STATUS 0x0c +#define MP2629_REG_FAULT 0x0d + +#define MP2629_MASK_INPUT_TYPE GENMASK(7, 5) +#define MP2629_MASK_CHARGE_TYPE GENMASK(4, 3) +#define MP2629_MASK_CHARGE_CTRL GENMASK(5, 4) +#define MP2629_MASK_WDOG_CTRL GENMASK(5, 4) +#define MP2629_MASK_IMPEDANCE GENMASK(7, 4) + +#define MP2629_INPUTSOURCE_CHANGE GENMASK(7, 5) +#define MP2629_CHARGING_CHANGE GENMASK(4, 3) +#define MP2629_FAULT_BATTERY BIT(3) +#define MP2629_FAULT_THERMAL BIT(4) +#define MP2629_FAULT_INPUT BIT(5) +#define MP2629_FAULT_OTG BIT(6) + +#define MP2629_MAX_BATT_CAPACITY 100 + +#define MP2629_PROPS(_idx, _min, _max, _step) \ + [_idx] = { \ + .min = _min, \ + .max = _max, \ + .step = _step, \ +} + +enum mp2629_source_type { + MP2629_SOURCE_TYPE_NO_INPUT, + MP2629_SOURCE_TYPE_NON_STD, + MP2629_SOURCE_TYPE_SDP, + MP2629_SOURCE_TYPE_CDP, + MP2629_SOURCE_TYPE_DCP, + MP2629_SOURCE_TYPE_OTG = 7, +}; + +enum mp2629_field { + INPUT_ILIM, + INPUT_VLIM, + CHARGE_ILIM, + CHARGE_VLIM, + PRECHARGE, + TERM_CURRENT, + MP2629_MAX_FIELD +}; + +struct mp2629_charger { + struct device *dev; + int status; + int fault; + + struct regmap *regmap; + struct regmap_field *regmap_fields[MP2629_MAX_FIELD]; + struct mutex lock; + struct power_supply *usb; + struct power_supply *battery; + struct iio_channel *iiochan[MP2629_ADC_CHAN_END]; +}; + +struct mp2629_prop { + int reg; + int mask; + int min; + int max; + int step; + int shift; +}; + +static enum power_supply_usb_type mp2629_usb_types[] = { + POWER_SUPPLY_USB_TYPE_SDP, + POWER_SUPPLY_USB_TYPE_DCP, + POWER_SUPPLY_USB_TYPE_CDP, + POWER_SUPPLY_USB_TYPE_PD_DRP, + POWER_SUPPLY_USB_TYPE_UNKNOWN +}; + +static enum power_supply_property mp2629_charger_usb_props[] = { + POWER_SUPPLY_PROP_ONLINE, + POWER_SUPPLY_PROP_USB_TYPE, + POWER_SUPPLY_PROP_VOLTAGE_NOW, + POWER_SUPPLY_PROP_CURRENT_NOW, + POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT, + POWER_SUPPLY_PROP_INPUT_VOLTAGE_LIMIT, +}; + +static enum power_supply_property mp2629_charger_bat_props[] = { + POWER_SUPPLY_PROP_STATUS, + POWER_SUPPLY_PROP_HEALTH, + POWER_SUPPLY_PROP_CHARGE_TYPE, + POWER_SUPPLY_PROP_VOLTAGE_NOW, + POWER_SUPPLY_PROP_CURRENT_NOW, + POWER_SUPPLY_PROP_CAPACITY, + POWER_SUPPLY_PROP_PRECHARGE_CURRENT, + POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT, + POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT, + POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE, + POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX, + POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX, +}; + +static struct mp2629_prop props[] = { + MP2629_PROPS(INPUT_ILIM, 100000, 3250000, 50000), + MP2629_PROPS(INPUT_VLIM, 3800000, 5300000, 100000), + MP2629_PROPS(CHARGE_ILIM, 320000, 4520000, 40000), + MP2629_PROPS(CHARGE_VLIM, 3400000, 4670000, 10000), + MP2629_PROPS(PRECHARGE, 120000, 720000, 40000), + MP2629_PROPS(TERM_CURRENT, 80000, 680000, 40000), +}; + +static const struct reg_field mp2629_reg_fields[] = { + [INPUT_ILIM] = REG_FIELD(MP2629_REG_INPUT_ILIM, 0, 5), + [INPUT_VLIM] = REG_FIELD(MP2629_REG_INPUT_VLIM, 0, 3), + [CHARGE_ILIM] = REG_FIELD(MP2629_REG_CHARGE_ILIM, 0, 6), + [CHARGE_VLIM] = REG_FIELD(MP2629_REG_CHARGE_VLIM, 1, 7), + [PRECHARGE] = REG_FIELD(MP2629_REG_PRECHARGE, 4, 7), + [TERM_CURRENT] = REG_FIELD(MP2629_REG_TERM_CURRENT, 0, 3), +}; + +static char *adc_chan_name[] = { + "mp2629-batt-volt", + "mp2629-system-volt", + "mp2629-input-volt", + "mp2629-batt-current", + "mp2629-input-current", +}; + +static int mp2629_read_adc(struct mp2629_charger *charger, + enum mp2629_adc_chan ch, + union power_supply_propval *val) +{ + int ret; + int chval; + + ret = iio_read_channel_processed(charger->iiochan[ch], &chval); + if (ret) + return ret; + + val->intval = chval * 1000; + + return 0; +} + +static int mp2629_get_prop(struct mp2629_charger *charger, + enum mp2629_field fld, + union power_supply_propval *val) +{ + int ret; + unsigned int rval; + + ret = regmap_field_read(charger->regmap_fields[fld], &rval); + if (ret) + return ret; + + val->intval = rval * props[fld].step + props[fld].min; + + return 0; +} + +static int mp2629_set_prop(struct mp2629_charger *charger, + enum mp2629_field fld, + const union power_supply_propval *val) +{ + unsigned int rval; + + if (val->intval < props[fld].min || val->intval > props[fld].max) + return -EINVAL; + + rval = (val->intval - props[fld].min) / props[fld].step; + return regmap_field_write(charger->regmap_fields[fld], rval); +} + +static int mp2629_get_battery_capacity(struct mp2629_charger *charger, + union power_supply_propval *val) +{ + union power_supply_propval vnow, vlim; + int ret; + + ret = mp2629_read_adc(charger, MP2629_BATT_VOLT, &vnow); + if (ret) + return ret; + + ret = mp2629_get_prop(charger, CHARGE_VLIM, &vlim); + if (ret) + return ret; + + val->intval = (vnow.intval * 100) / vlim.intval; + val->intval = min(val->intval, MP2629_MAX_BATT_CAPACITY); + + return 0; +} + +static int mp2629_charger_battery_get_prop(struct power_supply *psy, + enum power_supply_property psp, + union power_supply_propval *val) +{ + struct mp2629_charger *charger = dev_get_drvdata(psy->dev.parent); + unsigned int rval; + int ret = 0; + + switch (psp) { + case POWER_SUPPLY_PROP_VOLTAGE_NOW: + ret = mp2629_read_adc(charger, MP2629_BATT_VOLT, val); + break; + + case POWER_SUPPLY_PROP_CURRENT_NOW: + ret = mp2629_read_adc(charger, MP2629_BATT_CURRENT, val); + break; + + case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX: + val->intval = 4520000; + break; + + case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX: + val->intval = 4670000; + break; + + case POWER_SUPPLY_PROP_CAPACITY: + ret = mp2629_get_battery_capacity(charger, val); + break; + + case POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT: + ret = mp2629_get_prop(charger, TERM_CURRENT, val); + break; + + case POWER_SUPPLY_PROP_PRECHARGE_CURRENT: + ret = mp2629_get_prop(charger, PRECHARGE, val); + break; + + case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE: + ret = mp2629_get_prop(charger, CHARGE_VLIM, val); + break; + + case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT: + ret = mp2629_get_prop(charger, CHARGE_ILIM, val); + break; + + case POWER_SUPPLY_PROP_HEALTH: + if (!charger->fault) + val->intval = POWER_SUPPLY_HEALTH_GOOD; + if (MP2629_FAULT_BATTERY & charger->fault) + val->intval = POWER_SUPPLY_HEALTH_OVERVOLTAGE; + else if (MP2629_FAULT_THERMAL & charger->fault) + val->intval = POWER_SUPPLY_HEALTH_OVERHEAT; + else if (MP2629_FAULT_INPUT & charger->fault) + val->intval = POWER_SUPPLY_HEALTH_OVERVOLTAGE; + break; + + case POWER_SUPPLY_PROP_STATUS: + ret = regmap_read(charger->regmap, MP2629_REG_STATUS, &rval); + if (ret) + break; + + rval = (rval & MP2629_MASK_CHARGE_TYPE) >> 3; + switch (rval) { + case 0x00: + val->intval = POWER_SUPPLY_STATUS_DISCHARGING; + break; + case 0x01: + case 0x10: + val->intval = POWER_SUPPLY_STATUS_CHARGING; + break; + case 0x11: + val->intval = POWER_SUPPLY_STATUS_FULL; + } + break; + + case POWER_SUPPLY_PROP_CHARGE_TYPE: + ret = regmap_read(charger->regmap, MP2629_REG_STATUS, &rval); + if (ret) + break; + + rval = (rval & MP2629_MASK_CHARGE_TYPE) >> 3; + switch (rval) { + case 0x00: + val->intval = POWER_SUPPLY_CHARGE_TYPE_NONE; + break; + case 0x01: + val->intval = POWER_SUPPLY_CHARGE_TYPE_TRICKLE; + break; + case 0x10: + val->intval = POWER_SUPPLY_CHARGE_TYPE_STANDARD; + break; + default: + val->intval = POWER_SUPPLY_CHARGE_TYPE_UNKNOWN; + } + break; + + default: + return -EINVAL; + } + + return ret; +} + +static int mp2629_charger_battery_set_prop(struct power_supply *psy, + enum power_supply_property psp, + const union power_supply_propval *val) +{ + struct mp2629_charger *charger = dev_get_drvdata(psy->dev.parent); + + switch (psp) { + case POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT: + return mp2629_set_prop(charger, TERM_CURRENT, val); + + case POWER_SUPPLY_PROP_PRECHARGE_CURRENT: + return mp2629_set_prop(charger, PRECHARGE, val); + + case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE: + return mp2629_set_prop(charger, CHARGE_VLIM, val); + + case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT: + return mp2629_set_prop(charger, CHARGE_ILIM, val); + + default: + return -EINVAL; + } +} + +static int mp2629_charger_usb_get_prop(struct power_supply *psy, + enum power_supply_property psp, + union power_supply_propval *val) +{ + struct mp2629_charger *charger = dev_get_drvdata(psy->dev.parent); + unsigned int rval; + int ret; + + switch (psp) { + case POWER_SUPPLY_PROP_ONLINE: + ret = regmap_read(charger->regmap, MP2629_REG_STATUS, &rval); + if (ret) + break; + + val->intval = !!(rval & MP2629_MASK_INPUT_TYPE); + break; + + case POWER_SUPPLY_PROP_USB_TYPE: + ret = regmap_read(charger->regmap, MP2629_REG_STATUS, &rval); + if (ret) + break; + + rval = (rval & MP2629_MASK_INPUT_TYPE) >> 5; + switch (rval) { + case MP2629_SOURCE_TYPE_SDP: + val->intval = POWER_SUPPLY_USB_TYPE_SDP; + break; + case MP2629_SOURCE_TYPE_CDP: + val->intval = POWER_SUPPLY_USB_TYPE_CDP; + break; + case MP2629_SOURCE_TYPE_DCP: + val->intval = POWER_SUPPLY_USB_TYPE_DCP; + break; + case MP2629_SOURCE_TYPE_OTG: + val->intval = POWER_SUPPLY_USB_TYPE_PD_DRP; + break; + default: + val->intval = POWER_SUPPLY_USB_TYPE_UNKNOWN; + break; + } + break; + + case POWER_SUPPLY_PROP_VOLTAGE_NOW: + ret = mp2629_read_adc(charger, MP2629_INPUT_VOLT, val); + break; + + case POWER_SUPPLY_PROP_CURRENT_NOW: + ret = mp2629_read_adc(charger, MP2629_INPUT_CURRENT, val); + break; + + case POWER_SUPPLY_PROP_INPUT_VOLTAGE_LIMIT: + ret = mp2629_get_prop(charger, INPUT_VLIM, val); + break; + + case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT: + ret = mp2629_get_prop(charger, INPUT_ILIM, val); + break; + + default: + return -EINVAL; + } + + return ret; +} + +static int mp2629_charger_usb_set_prop(struct power_supply *psy, + enum power_supply_property psp, + const union power_supply_propval *val) +{ + struct mp2629_charger *charger = dev_get_drvdata(psy->dev.parent); + + switch (psp) { + case POWER_SUPPLY_PROP_INPUT_VOLTAGE_LIMIT: + return mp2629_set_prop(charger, INPUT_VLIM, val); + + case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT: + return mp2629_set_prop(charger, INPUT_ILIM, val); + + default: + return -EINVAL; + } +} + +static int mp2629_charger_battery_prop_writeable(struct power_supply *psy, + enum power_supply_property psp) +{ + return (psp == POWER_SUPPLY_PROP_PRECHARGE_CURRENT) || + (psp == POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT) || + (psp == POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT) || + (psp == POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE); +} + +static int mp2629_charger_usb_prop_writeable(struct power_supply *psy, + enum power_supply_property psp) +{ + return (psp == POWER_SUPPLY_PROP_INPUT_VOLTAGE_LIMIT) || + (psp == POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT); +} + +static irqreturn_t mp2629_irq_handler(int irq, void *dev_id) +{ + struct mp2629_charger *charger = dev_id; + unsigned int rval; + int ret; + + mutex_lock(&charger->lock); + + ret = regmap_read(charger->regmap, MP2629_REG_FAULT, &rval); + if (ret) + goto unlock; + + if (rval) { + charger->fault = rval; + if (MP2629_FAULT_BATTERY & rval) + dev_err(charger->dev, "Battery fault OVP\n"); + else if (MP2629_FAULT_THERMAL & rval) + dev_err(charger->dev, "Thermal shutdown fault\n"); + else if (MP2629_FAULT_INPUT & rval) + dev_err(charger->dev, "no input or input OVP\n"); + else if (MP2629_FAULT_OTG & rval) + dev_err(charger->dev, "VIN overloaded\n"); + + goto unlock; + } + + ret = regmap_read(charger->regmap, MP2629_REG_STATUS, &rval); + if (ret) + goto unlock; + + if (rval & MP2629_INPUTSOURCE_CHANGE) + power_supply_changed(charger->usb); + else if (rval & MP2629_CHARGING_CHANGE) + power_supply_changed(charger->battery); + +unlock: + mutex_unlock(&charger->lock); + + return IRQ_HANDLED; +} + +static const struct power_supply_desc mp2629_usb_desc = { + .name = "mp2629_usb", + .type = POWER_SUPPLY_TYPE_USB, + .usb_types = mp2629_usb_types, + .num_usb_types = ARRAY_SIZE(mp2629_usb_types), + .properties = mp2629_charger_usb_props, + .num_properties = ARRAY_SIZE(mp2629_charger_usb_props), + .get_property = mp2629_charger_usb_get_prop, + .set_property = mp2629_charger_usb_set_prop, + .property_is_writeable = mp2629_charger_usb_prop_writeable, +}; + +static const struct power_supply_desc mp2629_battery_desc = { + .name = "mp2629_battery", + .type = POWER_SUPPLY_TYPE_BATTERY, + .properties = mp2629_charger_bat_props, + .num_properties = ARRAY_SIZE(mp2629_charger_bat_props), + .get_property = mp2629_charger_battery_get_prop, + .set_property = mp2629_charger_battery_set_prop, + .property_is_writeable = mp2629_charger_battery_prop_writeable, +}; + +static ssize_t batt_impedance_compensation_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct mp2629_charger *charger = dev_get_drvdata(dev->parent); + unsigned int rval; + int ret; + + ret = regmap_read(charger->regmap, MP2629_REG_IMPEDANCE_COMP, &rval); + if (ret) + return ret; + + rval = (rval >> 4) * 10; + return sprintf(buf, "%d mohm\n", rval); +} + +static ssize_t batt_impedance_compensation_store(struct device *dev, + struct device_attribute *attr, + const char *buf, + size_t count) +{ + struct mp2629_charger *charger = dev_get_drvdata(dev->parent); + unsigned int val; + int ret; + + ret = kstrtouint(buf, 10, &val); + if (ret) + return ret; + + if (val > 140) + return -ERANGE; + + /* multiples of 10 mohm so round off */ + val = val / 10; + ret = regmap_update_bits(charger->regmap, MP2629_REG_IMPEDANCE_COMP, + MP2629_MASK_IMPEDANCE, val << 4); + if (ret) + return ret; + + return count; +} + +static DEVICE_ATTR_RW(batt_impedance_compensation); + +static struct attribute *mp2629_charger_sysfs_attrs[] = { + &dev_attr_batt_impedance_compensation.attr, + NULL +}; +ATTRIBUTE_GROUPS(mp2629_charger_sysfs); + +static void mp2629_charger_disable(void *data) +{ + struct mp2629_charger *charger = data; + + regmap_update_bits(charger->regmap, MP2629_REG_CHARGE_CTRL, + MP2629_MASK_CHARGE_CTRL, 0); +} + +static int mp2629_charger_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct mp2629_data *ddata = dev_get_drvdata(dev->parent); + struct mp2629_charger *charger; + struct power_supply_config psy_cfg = {}; + int ret, i, irq; + + charger = devm_kzalloc(dev, sizeof(*charger), GFP_KERNEL); + if (!charger) + return -ENOMEM; + + charger->regmap = ddata->regmap; + charger->dev = dev; + platform_set_drvdata(pdev, charger); + + irq = platform_get_irq_optional(to_platform_device(dev->parent), 0); + if (irq < 0) { + dev_err(dev, "get irq fail: %d\n", irq); + return irq; + } + + for (i = 0; i < MP2629_MAX_FIELD; i++) { + charger->regmap_fields[i] = devm_regmap_field_alloc(dev, + charger->regmap, mp2629_reg_fields[i]); + if (IS_ERR(charger->regmap_fields[i])) { + dev_err(dev, "regmap field alloc fail %d\n", i); + return PTR_ERR(charger->regmap_fields[i]); + } + } + + for (i = 0; i < MP2629_ADC_CHAN_END; i++) { + charger->iiochan[i] = devm_iio_channel_get(dev, + adc_chan_name[i]); + if (IS_ERR(charger->iiochan[i])) { + dev_err(dev, "iio chan get %s err\n", adc_chan_name[i]); + return PTR_ERR(charger->iiochan[i]); + } + } + + ret = devm_add_action_or_reset(dev, mp2629_charger_disable, charger); + if (ret) + return ret; + + charger->usb = devm_power_supply_register(dev, &mp2629_usb_desc, NULL); + if (IS_ERR(charger->usb)) { + dev_err(dev, "power supply register usb failed\n"); + return PTR_ERR(charger->usb); + } + + psy_cfg.drv_data = charger; + psy_cfg.attr_grp = mp2629_charger_sysfs_groups; + charger->battery = devm_power_supply_register(dev, + &mp2629_battery_desc, &psy_cfg); + if (IS_ERR(charger->battery)) { + dev_err(dev, "power supply register battery failed\n"); + return PTR_ERR(charger->battery); + } + + ret = regmap_update_bits(charger->regmap, MP2629_REG_CHARGE_CTRL, + MP2629_MASK_CHARGE_CTRL, BIT(4)); + if (ret) { + dev_err(dev, "enable charge fail: %d\n", ret); + return ret; + } + + regmap_update_bits(charger->regmap, MP2629_REG_TIMER_CTRL, + MP2629_MASK_WDOG_CTRL, 0); + + mutex_init(&charger->lock); + + ret = devm_request_threaded_irq(dev, irq, NULL, mp2629_irq_handler, + IRQF_ONESHOT | IRQF_TRIGGER_RISING, + "mp2629-charger", charger); + if (ret) { + dev_err(dev, "failed to request gpio IRQ\n"); + return ret; + } + + regmap_update_bits(charger->regmap, MP2629_REG_INTERRUPT, + GENMASK(6, 5), BIT(6) | BIT(5)); + + return 0; +} + +static const struct of_device_id mp2629_charger_of_match[] = { + { .compatible = "mps,mp2629_charger"}, + {} +}; +MODULE_DEVICE_TABLE(of, mp2629_charger_of_match); + +static struct platform_driver mp2629_charger_driver = { + .driver = { + .name = "mp2629_charger", + .of_match_table = mp2629_charger_of_match, + }, + .probe = mp2629_charger_probe, +}; +module_platform_driver(mp2629_charger_driver); + +MODULE_AUTHOR("Saravanan Sekar "); +MODULE_DESCRIPTION("MP2629 Charger driver"); +MODULE_LICENSE("GPL"); From patchwork Tue May 26 09:06:45 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: saravanan sekar X-Patchwork-Id: 11570145 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 4AAB9159A for ; Tue, 26 May 2020 09:07:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3277A20776 for ; Tue, 26 May 2020 09:07:37 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="PkRvqCOa" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731701AbgEZJH1 (ORCPT ); Tue, 26 May 2020 05:07:27 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53024 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731643AbgEZJHR (ORCPT ); Tue, 26 May 2020 05:07:17 -0400 Received: from mail-ej1-x644.google.com (mail-ej1-x644.google.com [IPv6:2a00:1450:4864:20::644]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E3C3BC03E97E; Tue, 26 May 2020 02:07:15 -0700 (PDT) Received: by mail-ej1-x644.google.com with SMTP id z5so23018541ejb.3; Tue, 26 May 2020 02:07:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=gzEuLfFr2Wjs95fYZslmPG3Xyc/Bgbx9OTSru/pSe2k=; b=PkRvqCOaFREZUk8gLbv3Us4ZkOg3l9OE5HPZcal4kaM1HIM6mqzt6s+iKh14CoYZ0s xo/DiSkEU17sZ6icVpANrdzg7vKZgkTOng8xvJF0mLwDRiD0ydT7mVPu+e1ubT2odUbu KLsVGlNpOaFCgCiaMYSFoMrdPkmMaa3/xAV+L4/4w/ZjmEr+FPPmoaeaQS1ZhEIPM2dj pbObtEhcLRvv9XdmmFVkGxRThtXTrW6Xl0OECeLj4tQjHV9mHP1kTiWvOPztpGUw9xJC Y74eXzK3jAmK8Mffk6Xiq0FtOLvYb6uYmCtgoQ+4bhMqfUHvqqbnLneOdqRxmZhYXdHm QNVg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=gzEuLfFr2Wjs95fYZslmPG3Xyc/Bgbx9OTSru/pSe2k=; b=N1ums+DDIv6KLUDLuJya1JaEoKOdTtBXws93iqbhweVdecCfKr0xxQvQIj6Byzjfaa 92sOcEVLf+by2p3BXmLjhxSaGau+Q+A6+VmLXJ04lhJRRHmd03HBSIGdpCMfwhhKSd1K vdWOQE+fz3ErPcnxeoGPuyFwHIayyoUuUgY2Va/pgB47knvVjLCV5ztt0gyZREbNLm78 VODYUOk2qSRmJ+QjAFa0cTq0Jyy6LB28Pz5D2cCiETtA/m+P/TPPEFtaWbMuJLwwneeF /NmQMStlkYpzZYmOwOfQlvszCNRsyNeiHMItZx7f/6H0lrQ6v7kd0L9CoW1RfMPYltxo 9MYA== X-Gm-Message-State: AOAM5311olDuzbmT6DonVOte7wiGBgknKVIPK3R5iPZPbMdexC8T5zLc gMG4vVmi7pADSp7j3gFDA48= X-Google-Smtp-Source: ABdhPJwODaPkJiuguuh2+j7FRF49SSw0Rt0HucdH0U3PQ6WTM/j3YCsPOAIGu7vlRFjjwTwayZM7Qg== X-Received: by 2002:a17:906:b79a:: with SMTP id dt26mr228324ejb.121.1590484034689; Tue, 26 May 2020 02:07:14 -0700 (PDT) Received: from localhost.localdomain (p5b3f6e09.dip0.t-ipconnect.de. [91.63.110.9]) by smtp.gmail.com with ESMTPSA id c7sm17870535edj.54.2020.05.26.02.07.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 26 May 2020 02:07:14 -0700 (PDT) From: Saravanan Sekar To: lee.jones@linaro.org, andy.shevchenko@gmail.com, robh+dt@kernel.org, jic23@kernel.org, knaack.h@gmx.de, lars@metafoo.de, pmeerw@pmeerw.net, sre@kernel.org Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-iio@vger.kernel.org, linux-pm@vger.kernel.org, sravanhome@gmail.com Subject: [PATCH v12 5/6] power: supply: mp2629: Add impedance compensation config Date: Tue, 26 May 2020 11:06:45 +0200 Message-Id: <20200526090646.25827-6-sravanhome@gmail.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200526090646.25827-1-sravanhome@gmail.com> References: <20200526090646.25827-1-sravanhome@gmail.com> Sender: linux-iio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org Allows the user to compensate the intrinsic resistance of the battery to accelerate the charging cycle. Signed-off-by: Saravanan Sekar Reviewed-by: Andy Shevchenko Reviewed-by: Sebastian Reichel Acked-for-MFD-by: Lee Jones --- Documentation/ABI/testing/sysfs-class-power-mp2629 | 8 ++++++++ 1 file changed, 8 insertions(+) create mode 100644 Documentation/ABI/testing/sysfs-class-power-mp2629 diff --git a/Documentation/ABI/testing/sysfs-class-power-mp2629 b/Documentation/ABI/testing/sysfs-class-power-mp2629 new file mode 100644 index 000000000000..327a07e22805 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-class-power-mp2629 @@ -0,0 +1,8 @@ +What: /sys/class/power_supply/mp2629_battery/batt_impedance_compen +Date: April 2020 +KernelVersion: 5.7 +Description: + Represents a battery impedance compensation to accelerate charging. + + Access: Read, Write + Valid values: Represented in milli-ohms. Valid range is [0, 140]. From patchwork Tue May 26 09:06:46 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: saravanan sekar X-Patchwork-Id: 11570139 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 1644B739 for ; Tue, 26 May 2020 09:07:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F0ECB20776 for ; Tue, 26 May 2020 09:07:35 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="aDygklhG" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731736AbgEZJH3 (ORCPT ); Tue, 26 May 2020 05:07:29 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53030 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731716AbgEZJHR (ORCPT ); Tue, 26 May 2020 05:07:17 -0400 Received: from mail-ed1-x542.google.com (mail-ed1-x542.google.com [IPv6:2a00:1450:4864:20::542]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4F32DC08C5C0; Tue, 26 May 2020 02:07:17 -0700 (PDT) Received: by mail-ed1-x542.google.com with SMTP id c35so695378edf.5; Tue, 26 May 2020 02:07:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=+S40BVUPgPSUdWykoDheY5kQW7B2En+DiDAHKy6z5dU=; b=aDygklhGqGUfLYeA/rc8mhK9DamK2+T6P7wNaW1L3uA4jK3iRV96Q6c2bFsaMjDDzC ZEa4nNcyHrxo3Aw/EsdG164KutYZeGlXVoY7FitvyiOZWRwiTR8bKEXkOYBY9k+Q+2wV fsaIR9JvTLkdIAfrWy061l+A8w0tQ01SrcVLtGbtyTdpYOKsrE2ZZx0c3dgZEJ+WfbJo ydWbGL5N4NSIg/GbEcHLNwNTbLec84U4Sf1tJ5PlHGsGEdxDPSkFDxEBKLN6XNiGL4Wk WkbD0yqH0koQtzNEKj2hShwe9KGNM6KBmvgBmCKfFtx9QBkyEvwS9+9YYJ5Op+izNCJb wGFA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=+S40BVUPgPSUdWykoDheY5kQW7B2En+DiDAHKy6z5dU=; b=rDFqzJAJ4Dmm/KI1LbEIfFwppfhIzWFVufoDVHbIh2qejTlP45vBHMOt/9CS4E0iEA SWoK0412DxkopgsedwbDDPXkm7+31BN55upDkFNh6yEJ8SFp8EDL5KIaY2PQ9mNpwoRi vjWVHz0rACJI/z0k1lix8/0DBoGH0E+2ZQJ72Lsnh0tUIrQHwaJ/1FGc6qBQCavWRy+/ vD5s8QqAzC95YMP7QzEI9hTWbfei/6L43J7mJCZkxQRo5PwJDwez8ozA8ojS/nqYMyoT D5rrKvVqXyIXL/5/UHOwXqZMswN+9usKYmT3Cdo98p4sZhp+MTuYLFIEdqvR3hkF0b4o 25mQ== X-Gm-Message-State: AOAM5321noZYWmzx71PikK/5u9cZ/bDVAw5K9TFPZ1z5eyteERh2iwAx DYKWVUMmBtrVkeRrqfFTBNEBY1gbD1A= X-Google-Smtp-Source: ABdhPJw7CpT9GgGjzICTDDEadxChbZGHAU3k5+0EHCDWM0fmFJWSxdLsJvK19Kj9IQ6MXkHGd9rSCg== X-Received: by 2002:a50:f182:: with SMTP id x2mr18993351edl.336.1590484036039; Tue, 26 May 2020 02:07:16 -0700 (PDT) Received: from localhost.localdomain (p5b3f6e09.dip0.t-ipconnect.de. [91.63.110.9]) by smtp.gmail.com with ESMTPSA id c7sm17870535edj.54.2020.05.26.02.07.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 26 May 2020 02:07:15 -0700 (PDT) From: Saravanan Sekar To: lee.jones@linaro.org, andy.shevchenko@gmail.com, robh+dt@kernel.org, jic23@kernel.org, knaack.h@gmx.de, lars@metafoo.de, pmeerw@pmeerw.net, sre@kernel.org Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-iio@vger.kernel.org, linux-pm@vger.kernel.org, sravanhome@gmail.com Subject: [PATCH v12 6/6] MAINTAINERS: Add entry for mp2629 Battery Charger driver Date: Tue, 26 May 2020 11:06:46 +0200 Message-Id: <20200526090646.25827-7-sravanhome@gmail.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200526090646.25827-1-sravanhome@gmail.com> References: <20200526090646.25827-1-sravanhome@gmail.com> Sender: linux-iio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org Add MAINTAINERS entry for Monolithic Power Systems mp2629 Charger driver. Signed-off-by: Saravanan Sekar Reviewed-by: Andy Shevchenko Reviewed-by: Sebastian Reichel Acked-for-MFD-by: Lee Jones --- MAINTAINERS | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index 32a95d162f06..0f82d5a7a614 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -11358,10 +11358,15 @@ F: drivers/tty/mxser.* MONOLITHIC POWER SYSTEM PMIC DRIVER M: Saravanan Sekar S: Maintained +F: Documentation/devicetree/bindings/mfd/mps,mp2629.yaml F: Documentation/devicetree/bindings/regulator/mps,mp*.yaml +F: drivers/iio/adc/mp2629_adc.c +F: drivers/mfd/mp2629.c +F: drivers/power/supply/mp2629_charger.c F: drivers/regulator/mp5416.c F: drivers/regulator/mpq7920.c F: drivers/regulator/mpq7920.h +F: include/linux/mfd/mp2629.h MR800 AVERMEDIA USB FM RADIO DRIVER M: Alexey Klimov