From patchwork Tue Jun 15 10:33:56 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alistair X-Patchwork-Id: 460693 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=-17.1 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, URIBL_BLACK, USER_AGENT_GIT autolearn=ham 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 F1429C48BE5 for ; Tue, 15 Jun 2021 10:34:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D965D61446 for ; Tue, 15 Jun 2021 10:34:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231718AbhFOKg1 (ORCPT ); Tue, 15 Jun 2021 06:36:27 -0400 Received: from out4-smtp.messagingengine.com ([66.111.4.28]:35367 "EHLO out4-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231724AbhFOKg0 (ORCPT ); Tue, 15 Jun 2021 06:36:26 -0400 Received: from compute6.internal (compute6.nyi.internal [10.202.2.46]) by mailout.nyi.internal (Postfix) with ESMTP id 267045C0102; Tue, 15 Jun 2021 06:34:21 -0400 (EDT) Received: from mailfrontend2 ([10.202.2.163]) by compute6.internal (MEProxy); Tue, 15 Jun 2021 06:34:21 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alistair23.me; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; s=fm1; bh=FXWO8BWkbjSyAl5Ap6Kfru+KYv 1KDGgUzEsYSnb0uoU=; b=llG0iHb5KKSjfUZ8CKIJXL2wzU4wTLxkYYeFvAbIJA GmlIgpgHxo1Y8sYbyZCjs7HuTj/EMBQYoBZgX1EDYz/A7P27oTX1HxNfwiboeHOt 2vcq9Qo/gntaRclgYe591TxFyX9UaIVVEhLEmw3c8HSYiy79AxdX5ezsPkmbk/go ctu8WZe316JBjwKEEckGlL9op8QEuv/vvW0FxmhtzbQDtYedfPLxJDcGIj/YNhmJ 01/mD/ys7Qo6oPRNxWsWFTn5leTcutGm0YaMpkrv6B0QSSOamrDELlW1cNPRU1wh oLA1EM8QaSK4BR6pWuElbggZb+6zHrVlRC5fKBfouIeQ== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:date:from :message-id:mime-version:subject:to:x-me-proxy:x-me-proxy :x-me-sender:x-me-sender:x-sasl-enc; s=fm3; bh=FXWO8BWkbjSyAl5Ap 6Kfru+KYv1KDGgUzEsYSnb0uoU=; b=vTjaQK4/kBGKkDHGQekEwljf6+KffsC6h MyjIBp4K+GW2J2vyCMZMhUZwGzfnRcrXleaYXy87TEESXa7gGX5SqzdRTGzESdk5 AlGDoDlraJauhflyt34gfAEP8WW4BhzOOKYGB5TtfRzDT2ECeONkrFTlUMtqzZ4b 0+mXQq/1+Y3jJJsV7neBMvmZ3EPxJ9+YOhikGuXPuj6j9IzGNo3aAbvUDKE2QkkF ghEU2MyWbJefRYDFTkOL8lTrZ4CY9nibxzCAqgy1m6P+Qhn/KgnAEN1aBHgG40/T +B+Jbz8qkxXs/IqiiXgB05NPLLxah1gbSdb+yanaVWXW1QIvkl7kw== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgeduledrfedvjedgvdelucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen uceurghilhhouhhtmecufedttdenucenucfjughrpefhvffufffkofgggfestdekredtre dttdenucfhrhhomheptehlihhsthgrihhrucfhrhgrnhgtihhsuceorghlihhsthgrihhr segrlhhishhtrghirhdvfedrmhgvqeenucggtffrrghtthgvrhhnpeevieeuudfhveehte elvdfguefhjefgffeijeehtddtffduhfehgeejfeejffelheenucffohhmrghinhepuggv vhhitggvthhrvggvrdhorhhgnecuvehluhhsthgvrhfuihiivgeptdenucfrrghrrghmpe hmrghilhhfrhhomheprghlihhsthgrihhrsegrlhhishhtrghirhdvfedrmhgv X-ME-Proxy: Received: by mail.messagingengine.com (Postfix) with ESMTPA; Tue, 15 Jun 2021 06:34:15 -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 v6 1/5] dt-bindings: mfd: Initial commit of silergy, sy7636a.yaml Date: Tue, 15 Jun 2021 20:33:56 +1000 Message-Id: <20210615103400.946-1-alistair@alistair23.me> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Initial support for the Silergy SY7636A Power Management chip and regulator. Signed-off-by: Alistair Francis --- .../bindings/mfd/silergy,sy7636a.yaml | 73 +++++++++++++++++++ 1 file changed, 73 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/silergy,sy7636a.yaml diff --git a/Documentation/devicetree/bindings/mfd/silergy,sy7636a.yaml b/Documentation/devicetree/bindings/mfd/silergy,sy7636a.yaml new file mode 100644 index 000000000000..9e50f57d5e8d --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/silergy,sy7636a.yaml @@ -0,0 +1,73 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mfd/silergy,sy7636a.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: silergy sy7636a PMIC + +maintainers: + - Alistair Francis + +properties: + compatible: + const: silergy,sy7636a + + reg: + maxItems: 1 + + '#thermal-sensor-cells': + const: 0 + + epd-pwr-good-gpios: + description: + Specifying the power good GPIOs. As defined in bindings/gpio.txt. + maxItems: 1 + + regulators: + type: object + + properties: + compatible: + const: silergy,sy7636a-regulator + + "vcom": + type: object + $ref: /schemas/regulator/regulator.yaml# + + regulator-name: + const: "vcom" + + additionalProperties: false + +required: + - compatible + - reg + - '#thermal-sensor-cells' + +additionalProperties: false + +examples: + - | + i2c { + #address-cells = <1>; + #size-cells = <0>; + + pmic@62 { + compatible = "silergy,sy7636a"; + reg = <0x62>; + status = "okay"; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_epdpmic>; + #thermal-sensor-cells = <0>; + + regulators { + compatible = "silergy,sy7636a-regulator"; + reg_epdpmic: vcom { + regulator-name = "vcom"; + regulator-boot-on; + }; + }; + }; + }; +... From patchwork Tue Jun 15 10:33:57 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alistair X-Patchwork-Id: 461650 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=-17.1 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, URIBL_BLACK, USER_AGENT_GIT autolearn=ham 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 11D15C48BE5 for ; Tue, 15 Jun 2021 10:34:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F026D61446 for ; Tue, 15 Jun 2021 10:34:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231724AbhFOKge (ORCPT ); Tue, 15 Jun 2021 06:36:34 -0400 Received: from out4-smtp.messagingengine.com ([66.111.4.28]:52193 "EHLO out4-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231752AbhFOKga (ORCPT ); Tue, 15 Jun 2021 06:36:30 -0400 Received: from compute1.internal (compute1.nyi.internal [10.202.2.41]) by mailout.nyi.internal (Postfix) with ESMTP id 2DED25C00CC; Tue, 15 Jun 2021 06:34:26 -0400 (EDT) Received: from mailfrontend2 ([10.202.2.163]) by compute1.internal (MEProxy); Tue, 15 Jun 2021 06:34:26 -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=5d4EDF1xqPv3h 3ZNKIRDZUbCVAVuqypxL3CNOJ/8U7Q=; b=k3vXcJH+vrtrs/JFcRJfsdCnXUgr0 slJUOmJQGyliUDJKkDlt1ygConlLKhS71RbxruksS8fYPJSkn/FgY+b1PX6hAjcI 76RXvpjjdE9IeaF4P+LevkQexIAZMyQT/zLb0oQklfpXLfvL+Llp87ewFhuJbBlw GMr3mwzey1RpfTknylC7orwNn+rB15wKlxN2TH4u2ooxwGToOSmAxezZe2X8HUrm V7hEMl2+/WlA+Wph0UqonGeVGMgmsB2rJZJTJbZWsywQwlfUaPAgIaQ9KdbnaUD2 8vlBIziot3pXGvdqTpqvGcD1iMR4EETMfzdDgwrf/uYkn5EoMcVWuHhQw== 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=5d4EDF1xqPv3h3ZNKIRDZUbCVAVuqypxL3CNOJ/8U7Q=; b=ElCYBJZg rT7m7wqJQhldHEbjNV7edscpfd2nb48TvzAIGiCePtVaafXqTgULIvNJOBhD/yRY nR2w8bqU5V6cz8u4VeCW1O5p2gDPEJ/bzJxvTQEef4TkJRywRThsjMO7KVTBDpOY r50YUrlDURLtg9OHkKwCNki41mczzi86XoDBQ4P6QfR8xcrEz/Tof2RuYkBFt7+p uNld9HuKFwdqXin6bI7f/+TiFYxKQ6/pHpdfDvXBVsXnwR1ZlagKvjzJHLCR73sf +u2Uro4f3ybaxqjiJUkVA5RTo1qV3wLb87AIicshziRjWLlF72qEDZWVoPRnAxcZ ROgXPB4S5IEVBQ== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgeduledrfedvjedgfedtucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen uceurghilhhouhhtmecufedttdenucenucfjughrpefhvffufffkofgjfhgggfestdekre dtredttdenucfhrhhomheptehlihhsthgrihhrucfhrhgrnhgtihhsuceorghlihhsthgr ihhrsegrlhhishhtrghirhdvfedrmhgvqeenucggtffrrghtthgvrhhnpeehffejteette ekfffhvdeghfegvedvvdeujeehheefveefudefgeeitdehueejleenucffohhmrghinhep rhgvmhgrrhhkrggslhgvrdgtohhmnecuvehluhhsthgvrhfuihiivgeptdenucfrrghrrg hmpehmrghilhhfrhhomheprghlihhsthgrihhrsegrlhhishhtrghirhdvfedrmhgv X-ME-Proxy: Received: by mail.messagingengine.com (Postfix) with ESMTPA; Tue, 15 Jun 2021 06:34:21 -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 v6 2/5] mfd: sy7636a: Initial commit Date: Tue, 15 Jun 2021 20:33:57 +1000 Message-Id: <20210615103400.946-2-alistair@alistair23.me> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210615103400.946-1-alistair@alistair23.me> References: <20210615103400.946-1-alistair@alistair23.me> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@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 | 82 +++++++++++++++++++++++++++++++++++++ include/linux/mfd/sy7636a.h | 47 +++++++++++++++++++++ 4 files changed, 139 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 5c7f2b100191..7d6cf32b1549 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -1339,6 +1339,15 @@ config MFD_SYSCON Select this option to enable accessing system control registers via regmap. +config MFD_SY7636A + tristate "Silergy SY7636A Power Management chip" + select MFD_CORE + select REGMAP_I2C + depends on I2C + help + Select this option to enable support for the Silergy SY7636A + Power Management chip. + config MFD_DAVINCI_VOICECODEC tristate select MFD_CORE diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index 4f6d2b8a5f76..f95e1e725a95 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -265,6 +265,7 @@ obj-$(CONFIG_MFD_STMFX) += stmfx.o obj-$(CONFIG_MFD_KHADAS_MCU) += khadas-mcu.o obj-$(CONFIG_MFD_ACER_A500_EC) += acer-ec-a500.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..e08f29ea63f8 --- /dev/null +++ b/drivers/mfd/sy7636a.c @@ -0,0 +1,82 @@ +// 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 const struct of_device_id of_sy7636a_match_table[] = { + { .compatible = "silergy,sy7636a", }, + {} +}; +MODULE_DEVICE_TABLE(of, of_sy7636a_match_table); + +static int sy7636a_probe(struct i2c_client *client, + const struct i2c_device_id *ids) +{ + struct sy7636a *sy7636a; + int ret; + + sy7636a = devm_kzalloc(&client->dev, sizeof(*sy7636a), GFP_KERNEL); + if (!sy7636a) + return -ENOMEM; + + sy7636a->dev = &client->dev; + + sy7636a->regmap = devm_regmap_init_i2c(client, &sy7636a_regmap_config); + if (IS_ERR(sy7636a->regmap)) { + ret = PTR_ERR(sy7636a->regmap); + dev_err(sy7636a->dev, + "Failed to initialize register map: %d\n", ret); + return ret; + } + + i2c_set_clientdata(client, sy7636a); + + ret = devm_mfd_add_devices(sy7636a->dev, PLATFORM_DEVID_AUTO, + sy7636a_cells, ARRAY_SIZE(sy7636a_cells), + NULL, 0, NULL); + return 0; +} + +static const struct i2c_device_id sy7636a_id_table[] = { + { "sy7636a", 0 }, + { }, +}; +MODULE_DEVICE_TABLE(i2c, sy7636a_id_table); + +static struct i2c_driver sy7636a_driver = { + .driver = { + .name = "sy7636a", + .of_match_table = of_sy7636a_match_table, + }, + .probe = sy7636a_probe, + .id_table = sy7636a_id_table, +}; +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..8e71a6e21791 --- /dev/null +++ b/include/linux/mfd/sy7636a.h @@ -0,0 +1,47 @@ +/* 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 10 + +#define FAULT_FLAG_SHIFT 1 + +struct sy7636a { + struct device *dev; + struct regmap *regmap; + struct gpio_desc *pgood_gpio; +}; + +#endif /* __LINUX_MFD_SY7636A_H */ From patchwork Tue Jun 15 10:33:58 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alistair X-Patchwork-Id: 460692 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=-17.1 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, URIBL_BLACK, USER_AGENT_GIT autolearn=ham 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 9D7D5C48BE8 for ; Tue, 15 Jun 2021 10:34:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 88F0C613FA for ; Tue, 15 Jun 2021 10:34:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231760AbhFOKgh (ORCPT ); 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Tue, 15 Jun 2021 06:34:26 -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 v6 3/5] regulator: sy7636a: Initial commit Date: Tue, 15 Jun 2021 20:33:58 +1000 Message-Id: <20210615103400.946-3-alistair@alistair23.me> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210615103400.946-1-alistair@alistair23.me> References: <20210615103400.946-1-alistair@alistair23.me> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Initial support for the Silergy SY7636A-regulator Power Management chip. Signed-off-by: Alistair Francis --- drivers/regulator/Kconfig | 6 ++ drivers/regulator/Makefile | 1 + drivers/regulator/sy7636a-regulator.c | 127 ++++++++++++++++++++++++++ 3 files changed, 134 insertions(+) create mode 100644 drivers/regulator/sy7636a-regulator.c diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index 3e7a38525cb3..ebb968e8b2b0 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -1150,6 +1150,12 @@ config REGULATOR_STW481X_VMMC This driver supports the internal VMMC regulator in the STw481x PMIC chips. +config REGULATOR_SY7636A + tristate "Silergy SY7636A voltage regulator" + depends on MFD_SY7636A + help + This driver supports Silergy SY3686A voltage regulator. + config REGULATOR_SY8106A tristate "Silergy SY8106A regulator" depends on I2C && (OF || COMPILE_TEST) diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile index 580b015296ea..b17c24d93f3b 100644 --- a/drivers/regulator/Makefile +++ b/drivers/regulator/Makefile @@ -136,6 +136,7 @@ obj-$(CONFIG_REGULATOR_STM32_VREFBUF) += stm32-vrefbuf.o obj-$(CONFIG_REGULATOR_STM32_PWR) += stm32-pwr.o obj-$(CONFIG_REGULATOR_STPMIC1) += stpmic1_regulator.o obj-$(CONFIG_REGULATOR_STW481X_VMMC) += stw481x-vmmc.o +obj-$(CONFIG_REGULATOR_SY7636A) += sy7636a-regulator.o obj-$(CONFIG_REGULATOR_SY8106A) += sy8106a-regulator.o obj-$(CONFIG_REGULATOR_SY8824X) += sy8824x.o obj-$(CONFIG_REGULATOR_SY8827N) += sy8827n.o diff --git a/drivers/regulator/sy7636a-regulator.c b/drivers/regulator/sy7636a-regulator.c new file mode 100644 index 000000000000..c384c2b6ac46 --- /dev/null +++ b/drivers/regulator/sy7636a-regulator.c @@ -0,0 +1,127 @@ +// SPDX-License-Identifier: GPL-2.0+ +// +// Functions to access SY3686A power management chip voltages +// +// Copyright (C) 2019 reMarkable AS - http://www.remarkable.com/ +// +// Authors: Lars Ivar Miljeteig +// Alistair Francis + +#include +#include +#include +#include +#include + +#define SY7636A_POLL_ENABLED_TIME 500 + +static int sy7636a_get_vcom_voltage_op(struct regulator_dev *rdev) +{ + int ret; + unsigned int val, val_h; + + ret = regmap_read(rdev->regmap, SY7636A_REG_VCOM_ADJUST_CTRL_L, &val); + if (ret) + return ret; + + ret = regmap_read(rdev->regmap, SY7636A_REG_VCOM_ADJUST_CTRL_H, &val_h); + if (ret) + return ret; + + val |= (val_h << VCOM_ADJUST_CTRL_SHIFT); + + return (val & VCOM_ADJUST_CTRL_MASK) * VCOM_ADJUST_CTRL_SCAL; +} + +static int sy7636a_get_status(struct regulator_dev *rdev) +{ + struct sy7636a *sy7636a = dev_get_drvdata(rdev->dev.parent); + int ret = 0; + + ret = gpiod_get_value_cansleep(sy7636a->pgood_gpio); + if (ret < 0) + dev_err(&rdev->dev, "Failed to read pgood gpio: %d\n", ret); + + return ret; +} + +static const struct regulator_ops sy7636a_vcom_volt_ops = { + .get_voltage = sy7636a_get_vcom_voltage_op, + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, + .get_status = sy7636a_get_status, +}; + +struct regulator_desc desc = { + .name = "vcom", + .id = 0, + .ops = &sy7636a_vcom_volt_ops, + .type = REGULATOR_VOLTAGE, + .owner = THIS_MODULE, + .enable_reg = SY7636A_REG_OPERATION_MODE_CRL, + .enable_mask = SY7636A_OPERATION_MODE_CRL_ONOFF, + .poll_enabled_time = SY7636A_POLL_ENABLED_TIME, + .regulators_node = of_match_ptr("regulators"), + .of_match = of_match_ptr("vcom"), +}; + +static int sy7636a_regulator_probe(struct platform_device *pdev) +{ + struct sy7636a *sy7636a = dev_get_drvdata(pdev->dev.parent); + struct regulator_config config = { }; + struct regulator_dev *rdev; + struct gpio_desc *gdp; + int ret; + + if (!sy7636a) + return -EPROBE_DEFER; + + platform_set_drvdata(pdev, sy7636a); + + gdp = devm_gpiod_get(sy7636a->dev, "epd-pwr-good", GPIOD_IN); + if (IS_ERR(gdp)) { + dev_err(sy7636a->dev, "Power good GPIO fault %ld\n", PTR_ERR(gdp)); + return PTR_ERR(gdp); + } + + sy7636a->pgood_gpio = gdp; + + ret = regmap_write(sy7636a->regmap, SY7636A_REG_POWER_ON_DELAY_TIME, 0x0); + if (ret) { + dev_err(sy7636a->dev, "Failed to initialize regulator: %d\n", ret); + return ret; + } + + config.dev = &pdev->dev; + config.dev->of_node = sy7636a->dev->of_node; + config.driver_data = sy7636a; + config.regmap = sy7636a->regmap; + + rdev = devm_regulator_register(&pdev->dev, &desc, &config); + if (IS_ERR(rdev)) { + dev_err(sy7636a->dev, "Failed to register %s regulator\n", + pdev->name); + return PTR_ERR(rdev); + } + + return 0; +} + +static const struct platform_device_id sy7636a_regulator_id_table[] = { + { "sy7636a-regulator", }, +}; +MODULE_DEVICE_TABLE(platform, sy7636a_regulator_id_table); + +static struct platform_driver sy7636a_regulator_driver = { + .driver = { + .name = "sy7636a-regulator", + }, + .probe = sy7636a_regulator_probe, + .id_table = sy7636a_regulator_id_table, +}; +module_platform_driver(sy7636a_regulator_driver); + +MODULE_AUTHOR("Lars Ivar Miljeteig "); +MODULE_DESCRIPTION("SY7636A voltage regulator driver"); +MODULE_LICENSE("GPL v2"); From patchwork Tue Jun 15 10:33:59 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alistair X-Patchwork-Id: 461649 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=-17.1 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, URIBL_BLACK, USER_AGENT_GIT autolearn=ham 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 9D874C48BE5 for ; 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Tue, 15 Jun 2021 06:34:31 -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 v6 4/5] ARM: imx_v6_v7_defconfig: Enable silergy,sy7636a Date: Tue, 15 Jun 2021 20:33:59 +1000 Message-Id: <20210615103400.946-4-alistair@alistair23.me> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210615103400.946-1-alistair@alistair23.me> References: <20210615103400.946-1-alistair@alistair23.me> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Enable the silergy,sy7636a and silergy,sy7636a-regulator for the reMarkable2. Signed-off-by: Alistair Francis --- arch/arm/configs/imx_v6_v7_defconfig | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/configs/imx_v6_v7_defconfig b/arch/arm/configs/imx_v6_v7_defconfig index cd80e85d37cf..bafd1d7b4ad5 100644 --- a/arch/arm/configs/imx_v6_v7_defconfig +++ b/arch/arm/configs/imx_v6_v7_defconfig @@ -245,6 +245,7 @@ CONFIG_MFD_MC13XXX_I2C=y CONFIG_MFD_RN5T618=y CONFIG_MFD_STMPE=y CONFIG_REGULATOR=y +CONFIG_MFD_SY7636A=y CONFIG_REGULATOR_FIXED_VOLTAGE=y CONFIG_REGULATOR_ANATOP=y CONFIG_REGULATOR_DA9052=y @@ -255,6 +256,7 @@ CONFIG_REGULATOR_MC13783=y CONFIG_REGULATOR_MC13892=y CONFIG_REGULATOR_PFUZE100=y CONFIG_REGULATOR_RN5T618=y +CONFIG_REGULATOR_SY7636A=y CONFIG_RC_CORE=y CONFIG_RC_DEVICES=y CONFIG_IR_GPIO_CIR=y From patchwork Tue Jun 15 10:34:00 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alistair X-Patchwork-Id: 460691 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=-17.1 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, URIBL_BLACK, USER_AGENT_GIT autolearn=ham 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 7EA39C48BDF for ; Tue, 15 Jun 2021 10:34:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5C21061453 for ; Tue, 15 Jun 2021 10:34:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231720AbhFOKgx (ORCPT ); Tue, 15 Jun 2021 06:36:53 -0400 Received: from out4-smtp.messagingengine.com ([66.111.4.28]:35945 "EHLO out4-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231785AbhFOKgp (ORCPT ); Tue, 15 Jun 2021 06:36:45 -0400 Received: from compute4.internal (compute4.nyi.internal [10.202.2.44]) by mailout.nyi.internal (Postfix) with ESMTP id 6F4F75C0195; Tue, 15 Jun 2021 06:34:40 -0400 (EDT) Received: from mailfrontend2 ([10.202.2.163]) by compute4.internal (MEProxy); Tue, 15 Jun 2021 06:34:40 -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=h7XH6I2ycjrnk yVPqG7auaEntJ59Imdi7yDlZm2rCj8=; b=JS17wA5nTA5Tyu5WtWUMh4n3PLqxz Rn9rMhfzpvCzcc675thdnNagUWqvOYPNE5AVUSzVRt9S7iyc2PqwKuEPAzfDZwUF FRgMgpxPxycfFwtYuSiAXstj+EqWxjaisCa8+ZYiktoRDnmUa/5kq7/630SRMM/T ZSZlViceN4M6R9tPVk4qPORqILISy8CZHqbw/FKYyZb9fvro7QXx4mprpm8muwX5 4jon7iYUWgEZ+Taby/v2KE1L7MhClWRtH9bl9K4x4zaIQhqo3C1vmyRymc6LG9Cp 3Yf6AsO6ATLZ3Eco/NTULJuCedM5QDb6XFbJAM/YJOeHfdGRDrSrLx/6Q== 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=h7XH6I2ycjrnkyVPqG7auaEntJ59Imdi7yDlZm2rCj8=; b=SWjxzWsz 87fFVB6THUNp3VMbfwbHUdRI2XQxuoe3vPfN6Gv0+PztQvKKw5oN05oAOwV/IA1C Q0U00w5v8SL0+qbnj6sHcJAd6M0fu8T3Xf8ogXeS0oeQswQLG5ekrew4Ul10Hh8d B6ICSZ8Pxx72mN8K6B7ehKKS9hIpXEmazSZSUpk15YjRY+PQcE0qVOAPYrcd47CH 4rykwEp8jAml7b8JlDbgN1AHLyJ/hVIjdFaV1DqKercgMIJx+vc/Gp9/9nTxOgJB wPMDB4F1ZCcPwsME2gLVgDPL/zdSbw8g4CKL04srZLtTcijVCupgYOU+l3zf2SI7 Fs7N1IJUoM/LYw== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgeduledrfedvjedgfedtucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen uceurghilhhouhhtmecufedttdenucenucfjughrpefhvffufffkofgjfhgggfestdekre dtredttdenucfhrhhomheptehlihhsthgrihhrucfhrhgrnhgtihhsuceorghlihhsthgr ihhrsegrlhhishhtrghirhdvfedrmhgvqeenucggtffrrghtthgvrhhnpeeggedtteejke eggeeugfehueevudegvdetjeeviedugedvtdekffekhedtteduhfenucevlhhushhtvghr ufhiiigvpedtnecurfgrrhgrmhepmhgrihhlfhhrohhmpegrlhhishhtrghirhesrghlih hsthgrihhrvdefrdhmvg X-ME-Proxy: Received: by mail.messagingengine.com (Postfix) with ESMTPA; Tue, 15 Jun 2021 06:34:35 -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 v6 5/5] ARM: dts: imx7d: remarkable2: Enable silergy, sy7636a Date: Tue, 15 Jun 2021 20:34:00 +1000 Message-Id: <20210615103400.946-5-alistair@alistair23.me> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210615103400.946-1-alistair@alistair23.me> References: <20210615103400.946-1-alistair@alistair23.me> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Enable the silergy,sy7636a and silergy,sy7636a-regulator on the reMarkable2. Signed-off-by: Alistair Francis --- arch/arm/boot/dts/imx7d-remarkable2.dts | 61 +++++++++++++++++++++++++ 1 file changed, 61 insertions(+) diff --git a/arch/arm/boot/dts/imx7d-remarkable2.dts b/arch/arm/boot/dts/imx7d-remarkable2.dts index 35262c60f015..5876d16c4494 100644 --- a/arch/arm/boot/dts/imx7d-remarkable2.dts +++ b/arch/arm/boot/dts/imx7d-remarkable2.dts @@ -22,6 +22,27 @@ memory@80000000 { reg = <0x80000000 0x40000000>; }; + thermal-zones { + epd-thermal { + thermal-sensors = <&epd_pmic>; + polling-delay-passive = <30000>; + polling-delay = <30000>; + trips { + trip0 { + temperature = <49000>; + hysteresis = <2000>; + type = "passive"; + }; + + trip1 { + temperature = <50000>; + hysteresis = <2000>; + type = "critical"; + }; + }; + }; + }; + reg_brcm: regulator-brcm { compatible = "regulator-fixed"; regulator-name = "brcm_reg"; @@ -86,6 +107,32 @@ wacom_digitizer: digitizer@9 { }; }; +&i2c4 { + clock-frequency = <100000>; + pinctrl-names = "default", "sleep"; + pinctrl-0 = <&pinctrl_i2c4>; + pinctrl-1 = <&pinctrl_i2c4>; + status = "okay"; + + epd_pmic: sy7636a@62 { + compatible = "silergy,sy7636a"; + reg = <0x62>; + status = "okay"; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_epdpmic>; + #thermal-sensor-cells = <0>; + + epd-pwr-good-gpios = <&gpio6 21 GPIO_ACTIVE_HIGH>; + regulators { + compatible = "silergy,sy7636a-regulator"; + reg_epdpmic: vcom { + regulator-name = "vcom"; + regulator-boot-on; + }; + }; + }; +}; + &snvs_pwrkey { status = "okay"; }; @@ -180,6 +227,13 @@ MX7D_PAD_SAI1_TX_BCLK__GPIO6_IO13 0x14 >; }; + pinctrl_epdpmic: epdpmicgrp { + fsl,pins = < + MX7D_PAD_SAI2_RX_DATA__GPIO6_IO21 0x00000074 + MX7D_PAD_ENET1_RGMII_TXC__GPIO7_IO11 0x00000014 + >; + }; + pinctrl_i2c1: i2c1grp { fsl,pins = < MX7D_PAD_I2C1_SDA__I2C1_SDA 0x4000007f @@ -187,6 +241,13 @@ MX7D_PAD_I2C1_SCL__I2C1_SCL 0x4000007f >; }; + pinctrl_i2c4: i2c4grp { + fsl,pins = < + MX7D_PAD_I2C4_SDA__I2C4_SDA 0x4000007f + MX7D_PAD_I2C4_SCL__I2C4_SCL 0x4000007f + >; + }; + pinctrl_uart1: uart1grp { fsl,pins = < MX7D_PAD_UART1_TX_DATA__UART1_DCE_TX 0x79