From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CC69CC432BE for ; Tue, 3 Aug 2021 08:46:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B20D660C3E for ; Tue, 3 Aug 2021 08:46:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234677AbhHCIqK (ORCPT ); Tue, 3 Aug 2021 04:46:10 -0400 Received: from out5-smtp.messagingengine.com ([66.111.4.29]:38237 "EHLO out5-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234573AbhHCIqG (ORCPT ); Tue, 3 Aug 2021 04:46:06 -0400 Received: from compute5.internal (compute5.nyi.internal [10.202.2.45]) by mailout.nyi.internal (Postfix) with ESMTP id 982B55C00C4; Tue, 3 Aug 2021 04:45:55 -0400 (EDT) Received: from mailfrontend1 ([10.202.2.162]) by compute5.internal (MEProxy); Tue, 03 Aug 2021 04:45:55 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alistair23.me; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; s=fm1; bh=+N7DD/QqxQViw OVX7AaMbzgltloMStlyOZLI4dXbkHw=; b=LmPaRwkcUqbHoE8QNWLm+JiLmh3gI qa07LYBgDw/5geoCIsqHJhBsY5YMRAir0YXBH4HmmxofURDbuouFCKxbUpLR30fo tJ5VTXU0R0sV/vTiMVIen1qxzkoz0MYNHM9U+wDc3co/gcP5YWoPKzVi2Hbbi6f/ SLULmid0WXJbLZY7G59NEj1dw5K1dDTfTKYcvt4CIEucp1V8IEsMWHofvF9RLk3a 5IxwA1QG9JLy5WtR34syTiQcVHGlJruWoTs8lw5moA0iqgcsuVbHolPOx34LLT4m D80xhR8qgMRSinfE6twn02jFD4hFK/tzbpudpft1pBlAa1hKatZsjvsYw== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:date:from :in-reply-to:message-id:mime-version:references:subject:to :x-me-proxy:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s= fm3; bh=+N7DD/QqxQViwOVX7AaMbzgltloMStlyOZLI4dXbkHw=; b=V8hODupP CnS8Ru0TGIkJpQDDw61itsoBuBBu3D9eNJJXo8nyrKroosTpFtz1zIQscT0mZVCL 0xuGNYPcoU8QD149+dTFBSb6FKYaxwQgxPAu45rG8GPBFAmz3lzQffXbghxOZse9 SsNk6YE1PwOjTdUQutruGL/amHc2T5+IrM+woYCBRje8feZ4yyLPHBcTo678UgTV Pv1yrezWZnar2G78SR4rZilkcNBWSz5957AVxLgr+jF9za/6XEAy9EcNt9MW7b11 XjydL/7hfPzq0pg2wq0ao/Ep6Hq0rDE1ZDr4uPVc+GhZiCyA3mLWV1ZEciBQG0RI 2YUV3BGX6Teu3A== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvtddrieeggddthecutefuodetggdotefrodftvf curfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfghnecu uegrihhlohhuthemuceftddtnecunecujfgurhephffvufffkffojghfggfgsedtkeertd ertddtnecuhfhrohhmpeetlhhishhtrghirhcuhfhrrghntghishcuoegrlhhishhtrghi rhesrghlihhsthgrihhrvdefrdhmvgeqnecuggftrfgrthhtvghrnhepheffjeetteetke ffhfdvgefhgeevvddvueejheehfeevfedufeegiedtheeujeelnecuffhomhgrihhnpehr vghmrghrkhgrsghlvgdrtghomhenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmh epmhgrihhlfhhrohhmpegrlhhishhtrghirhesrghlihhsthgrihhrvdefrdhmvg X-ME-Proxy: Received: by mail.messagingengine.com (Postfix) with ESMTPA; Tue, 3 Aug 2021 04:45:50 -0400 (EDT) From: Alistair Francis To: lee.jones@linaro.org, robh+dt@kernel.org, lgirdwood@gmail.com, broonie@kernel.org, linux-imx@nxp.com, kernel@pengutronix.de Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, alistair23@gmail.com, Alistair Francis Subject: [PATCH v8 02/11] mfd: sy7636a: Initial commit Date: Tue, 3 Aug 2021 18:44:49 +1000 Message-Id: <20210803084456.198-2-alistair@alistair23.me> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210803084456.198-1-alistair@alistair23.me> References: <20210803084456.198-1-alistair@alistair23.me> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Initial support for the Silergy SY7636A Power Management chip. Signed-off-by: Alistair Francis --- drivers/mfd/Kconfig | 9 +++++ drivers/mfd/Makefile | 1 + drivers/mfd/sy7636a.c | 72 +++++++++++++++++++++++++++++++++++++ include/linux/mfd/sy7636a.h | 45 +++++++++++++++++++++++ 4 files changed, 127 insertions(+) create mode 100644 drivers/mfd/sy7636a.c create mode 100644 include/linux/mfd/sy7636a.h diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 6a3fd2d75f96..b82208f0c79c 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -1352,6 +1352,15 @@ config MFD_SYSCON Select this option to enable accessing system control registers via regmap. +config MFD_SY7636A + tristate "Silergy SY7636A Power Management IC" + select MFD_CORE + select REGMAP_I2C + depends on I2C + help + Select this option to enable support for the Silergy SY7636A + Power Management IC. + config MFD_DAVINCI_VOICECODEC tristate select MFD_CORE diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index 8116c19d5fd4..cbe581e87fa9 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -266,6 +266,7 @@ obj-$(CONFIG_MFD_KHADAS_MCU) += khadas-mcu.o obj-$(CONFIG_MFD_ACER_A500_EC) += acer-ec-a500.o obj-$(CONFIG_MFD_QCOM_PM8008) += qcom-pm8008.o +obj-$(CONFIG_MFD_SY7636A) += sy7636a.o obj-$(CONFIG_SGI_MFD_IOC3) += ioc3.o obj-$(CONFIG_MFD_SIMPLE_MFD_I2C) += simple-mfd-i2c.o obj-$(CONFIG_MFD_INTEL_M10_BMC) += intel-m10-bmc.o diff --git a/drivers/mfd/sy7636a.c b/drivers/mfd/sy7636a.c new file mode 100644 index 000000000000..f3ff93c7395d --- /dev/null +++ b/drivers/mfd/sy7636a.c @@ -0,0 +1,72 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * MFD parent driver for SY7636A chip + * + * Copyright (C) 2021 reMarkable AS - http://www.remarkable.com/ + * + * Authors: Lars Ivar Miljeteig + * Alistair Francis + * + * Based on the lp87565 driver by Keerthy + */ + +#include +#include +#include +#include + +#include + +static const struct regmap_config sy7636a_regmap_config = { + .reg_bits = 8, + .val_bits = 8, +}; + +static const struct mfd_cell sy7636a_cells[] = { + { .name = "sy7636a-regulator", }, + { .name = "sy7636a-temperature", }, + { .name = "sy7636a-thermal", }, +}; + +static int sy7636a_probe(struct i2c_client *client) +{ + struct sy7636a *ddata; + int ret; + + ddata = devm_kzalloc(&client->dev, sizeof(*ddata), GFP_KERNEL); + if (!ddata) + return -ENOMEM; + + ddata->regmap = devm_regmap_init_i2c(client, &sy7636a_regmap_config); + if (IS_ERR(ddata->regmap)) { + ret = PTR_ERR(ddata->regmap); + dev_err(&client->dev, + "Failed to initialize register map: %d\n", ret); + return ret; + } + + i2c_set_clientdata(client, ddata); + + return devm_mfd_add_devices(&client->dev, PLATFORM_DEVID_AUTO, + sy7636a_cells, ARRAY_SIZE(sy7636a_cells), + NULL, 0, NULL); +} + +static const struct of_device_id of_sy7636a_match_table[] = { + { .compatible = "silergy,sy7636a", }, + {} +}; +MODULE_DEVICE_TABLE(of, of_sy7636a_match_table); + +static struct i2c_driver sy7636a_driver = { + .driver = { + .name = "sy7636a", + .of_match_table = of_sy7636a_match_table, + }, + .probe_new = sy7636a_probe, +}; +module_i2c_driver(sy7636a_driver); + +MODULE_AUTHOR("Lars Ivar Miljeteig "); +MODULE_DESCRIPTION("Silergy SY7636A Multi-Function Device Driver"); +MODULE_LICENSE("GPL v2"); diff --git a/include/linux/mfd/sy7636a.h b/include/linux/mfd/sy7636a.h new file mode 100644 index 000000000000..5e9c537fee45 --- /dev/null +++ b/include/linux/mfd/sy7636a.h @@ -0,0 +1,45 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Functions to access SY3686A power management chip. + * + * Copyright (C) 2021 reMarkable AS - http://www.remarkable.com/ + */ + +#ifndef __MFD_SY7636A_H +#define __MFD_SY7636A_H + +#include +#include +#include +#include + +#define SY7636A_REG_OPERATION_MODE_CRL 0x00 +#define SY7636A_OPERATION_MODE_CRL_VCOMCTL BIT(6) +#define SY7636A_OPERATION_MODE_CRL_ONOFF BIT(7) +#define SY7636A_REG_VCOM_ADJUST_CTRL_L 0x01 +#define SY7636A_REG_VCOM_ADJUST_CTRL_H 0x02 +#define SY7636A_REG_VCOM_ADJUST_CTRL_MASK 0x01ff +#define SY7636A_REG_VLDO_VOLTAGE_ADJULST_CTRL 0x03 +#define SY7636A_REG_POWER_ON_DELAY_TIME 0x06 +#define SY7636A_REG_FAULT_FLAG 0x07 +#define SY7636A_FAULT_FLAG_PG BIT(0) +#define SY7636A_REG_TERMISTOR_READOUT 0x08 + +#define SY7636A_REG_MAX 0x08 + +#define VCOM_MIN 0 +#define VCOM_MAX 5000 + +#define VCOM_ADJUST_CTRL_MASK 0x1ff +// Used to shift the high byte +#define VCOM_ADJUST_CTRL_SHIFT 8 +// Used to scale from VCOM_ADJUST_CTRL to mv +#define VCOM_ADJUST_CTRL_SCAL 10000 + +#define FAULT_FLAG_SHIFT 1 + +struct sy7636a { + struct regmap *regmap; +}; + +#endif /* __LINUX_MFD_SY7636A_H */ -- 2.31.1