From patchwork Fri Aug 5 06:43:49 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matt Ranostay X-Patchwork-Id: 595902 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1644EC25B08 for ; Fri, 5 Aug 2022 06:44:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237225AbiHEGoZ (ORCPT ); Fri, 5 Aug 2022 02:44:25 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52542 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235305AbiHEGoV (ORCPT ); Fri, 5 Aug 2022 02:44:21 -0400 Received: from lelv0143.ext.ti.com (lelv0143.ext.ti.com [198.47.23.248]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1CE9273907; Thu, 4 Aug 2022 23:44:21 -0700 (PDT) Received: from lelv0265.itg.ti.com ([10.180.67.224]) by lelv0143.ext.ti.com (8.15.2/8.15.2) with ESMTP id 2756iEJe007790; Fri, 5 Aug 2022 01:44:14 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1659681854; bh=5TJvD2s4bz0iaOG+KuC/1yL4YUKZ7tGBhsxys0s5y8k=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=MMWvl2yhPxvPiqv+fL04fCk8EaWYvY/YZm0BruBNqzHUhAfrWSFSboKQREvINx4GS bcW8/ClOzXO8ozvmEo13M4LcqU+dMJXEtFhl19v3cXmK0Pprv9ot2sPMDcl3Qz2Id6 Uh+E/l8fc5UWsGlQEf1wBqCwpggDa+0hCEij6z94= Received: from DLEE103.ent.ti.com (dlee103.ent.ti.com [157.170.170.33]) by lelv0265.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 2756iEHB021680 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Fri, 5 Aug 2022 01:44:14 -0500 Received: from DLEE115.ent.ti.com (157.170.170.26) by DLEE103.ent.ti.com (157.170.170.33) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2308.14; Fri, 5 Aug 2022 01:44:14 -0500 Received: from lelv0327.itg.ti.com (10.180.67.183) by DLEE115.ent.ti.com (157.170.170.26) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2308.14 via Frontend Transport; Fri, 5 Aug 2022 01:44:14 -0500 Received: from localhost.localdomain (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0327.itg.ti.com (8.15.2/8.15.2) with ESMTP id 2756hvNE086657; Fri, 5 Aug 2022 01:44:08 -0500 From: Matt Ranostay To: , CC: , , , , Matt Ranostay Subject: [PATCH 1/4] Documentation: tps6594x: Add DT bindings for the TPS6594x PMIC Date: Thu, 4 Aug 2022 23:43:49 -0700 Message-ID: <20220805064352.793918-2-mranostay@ti.com> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20220805064352.793918-1-mranostay@ti.com> References: <20220805064352.793918-1-mranostay@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Signed-off-by: Matt Ranostay --- .../devicetree/bindings/mfd/ti,tps6594x.yaml | 53 +++++++++++++++++++ 1 file changed, 53 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/ti,tps6594x.yaml diff --git a/Documentation/devicetree/bindings/mfd/ti,tps6594x.yaml b/Documentation/devicetree/bindings/mfd/ti,tps6594x.yaml new file mode 100644 index 000000000000..9fd3af87a861 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/ti,tps6594x.yaml @@ -0,0 +1,53 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mfd/ti,tps65086.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: TPS6594x Power Management Integrated Circuit (PMIC) + +maintainers: + - Keerthy + +properties: + compatible: + const: ti,tps6594x + + reg: + const: 0x48 + description: I2C slave address + + ti,system-power-controller: + description: PMIC is controlling the system power. + + rtc: + type: object + $ref: /schemas/rtc/rtc.yaml# + unevaluatedProperties: false + properties: + compatible: + const: ti,tps6594x-rtc + +additionalProperties: false + +required: + - compatible + - reg + +examples: + - | + i2c0 { + #address-cells = <1>; + #size-cells = <0>; + + pmic: pmic@48 { + compatible = "ti,tps6594x"; + reg = <0x48>; + + rtc { + compatible = "ti,tps6594x-rtc"; + }; + }; + }; + +... From patchwork Fri Aug 5 06:43:50 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matt Ranostay X-Patchwork-Id: 595647 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4C780C25B08 for ; Fri, 5 Aug 2022 06:44:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237477AbiHEGog (ORCPT ); Fri, 5 Aug 2022 02:44:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52918 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237332AbiHEGod (ORCPT ); Fri, 5 Aug 2022 02:44:33 -0400 Received: from fllv0015.ext.ti.com (fllv0015.ext.ti.com [198.47.19.141]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8C02073939; Thu, 4 Aug 2022 23:44:28 -0700 (PDT) Received: from fllv0034.itg.ti.com ([10.64.40.246]) by fllv0015.ext.ti.com (8.15.2/8.15.2) with ESMTP id 2756iNpZ089776; Fri, 5 Aug 2022 01:44:23 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1659681863; bh=r4cuoO0g5StmeNhBsKDshy6zD5bIMNxZivFlDri7E5Y=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=h4BMFZKjV0N/yLGXdcJ99I/XTQig7sOvZ6ftdpzCtzEFW+9Uvr0vq26PjfadZY3dL j3F6ZP/7EVqEpQLE0a+07uvlfveUGThsrJLLq+f4fRnMUyfNrJeTNDf0YENRIfCQZx R8QQocog2FoSl3JMckFg3G+U141dhewxCNoWEeVI= Received: from DFLE106.ent.ti.com (dfle106.ent.ti.com [10.64.6.27]) by fllv0034.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 2756iN1a109610 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Fri, 5 Aug 2022 01:44:23 -0500 Received: from DFLE107.ent.ti.com (10.64.6.28) by DFLE106.ent.ti.com (10.64.6.27) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2308.14; Fri, 5 Aug 2022 01:44:22 -0500 Received: from lelv0327.itg.ti.com (10.180.67.183) by DFLE107.ent.ti.com (10.64.6.28) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2308.14 via Frontend Transport; Fri, 5 Aug 2022 01:44:22 -0500 Received: from localhost.localdomain (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0327.itg.ti.com (8.15.2/8.15.2) with ESMTP id 2756hvNF086657; Fri, 5 Aug 2022 01:44:15 -0500 From: Matt Ranostay To: , CC: , , , , Keerthy , Matt Ranostay Subject: [PATCH 2/4] MFD: TPS6594x: Add new mfd device for TPS6594x PMIC Date: Thu, 4 Aug 2022 23:43:50 -0700 Message-ID: <20220805064352.793918-3-mranostay@ti.com> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20220805064352.793918-1-mranostay@ti.com> References: <20220805064352.793918-1-mranostay@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org From: Keerthy The TPS6594x chip is a PMIC, and contains the following components: - Regulators - GPIO controller - RTC However initially only RTC is supported. Signed-off-by: Keerthy Signed-off-by: Matt Ranostay --- drivers/mfd/Kconfig | 14 +++++ drivers/mfd/Makefile | 1 + drivers/mfd/tps6594x.c | 106 +++++++++++++++++++++++++++++++++++ include/linux/mfd/tps6594x.h | 66 ++++++++++++++++++++++ 4 files changed, 187 insertions(+) create mode 100644 drivers/mfd/tps6594x.c create mode 100644 include/linux/mfd/tps6594x.h diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index abb58ab1a1a4..cfb5b3d66b76 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -1547,6 +1547,20 @@ config MFD_TI_LP873X This driver can also be built as a module. If so, the module will be called lp873x. +config MFD_TPS6594X + tristate "TI TPS6594X Power Management IC" + depends on I2C + select MFD_CORE + select REGMAP_I2C + help + If you say yes here then you get support for the TPS6594X series of + Power Management Integrated Circuits (PMIC). + These include voltage regulators, RTS, configurable + General Purpose Outputs (GPO) that are used in portable devices. + + This driver can also be built as a module. If so, the module + will be called tps7694x. + config MFD_TI_LP87565 tristate "TI LP87565 Power Management IC" depends on I2C && OF diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index 858cacf659d6..7ff6a8a57d55 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -105,6 +105,7 @@ obj-$(CONFIG_MFD_TPS65910) += tps65910.o obj-$(CONFIG_MFD_TPS65912) += tps65912-core.o obj-$(CONFIG_MFD_TPS65912_I2C) += tps65912-i2c.o obj-$(CONFIG_MFD_TPS65912_SPI) += tps65912-spi.o +obj-$(CONFIG_MFD_TPS6594X) += tps6594x.o obj-$(CONFIG_MENELAUS) += menelaus.o obj-$(CONFIG_TWL4030_CORE) += twl-core.o twl4030-irq.o twl6030-irq.o diff --git a/drivers/mfd/tps6594x.c b/drivers/mfd/tps6594x.c new file mode 100644 index 000000000000..519162cc1fbe --- /dev/null +++ b/drivers/mfd/tps6594x.c @@ -0,0 +1,106 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * tps6594x.c -- TI TPS6594x chip family multi-function driver + * + * Copyright (C) 2022 Texas Instruments Incorporated - https://www.ti.com/ + * + * Author: Keerthy + */ + +#include +#include +#include +#include +#include +#include + +#include + +static const struct regmap_config tps6594x_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + .max_register = TPS6594X_REG_MAX, +}; + +static const struct mfd_cell tps6594x_cells[] = { + { .name = "tps6594x-rtc", }, +}; + +static struct tps6594x *tps; + +static void tps6594x_power_off(void) +{ + regmap_write(tps->regmap, TPS6594X_FSM_NSLEEP_TRIGGERS, 0x3); + regmap_write(tps->regmap, TPS6594X_INT_STARTUP, 0xff); + regmap_write(tps->regmap, TPS6594X_INT_MISC, 0xff); + regmap_write(tps->regmap, TPS6594X_CONFIG_1, 0xc0); + regmap_write(tps->regmap, TPS6594X_FSM_I2C_TRIGGERS, 0x1); +} + +static int tps6594x_probe(struct i2c_client *client, + const struct i2c_device_id *ids) +{ + struct tps6594x *tps6594; + int ret; + unsigned int otpid; + struct device_node *node = client->dev.of_node; + + tps6594 = devm_kzalloc(&client->dev, sizeof(*tps6594), GFP_KERNEL); + if (!tps6594) + return -ENOMEM; + + tps6594->dev = &client->dev; + + tps6594->regmap = devm_regmap_init_i2c(client, &tps6594x_regmap_config); + if (IS_ERR(tps6594->regmap)) { + ret = PTR_ERR(tps6594->regmap); + dev_err(tps6594->dev, + "Failed to initialize register map: %d\n", ret); + return ret; + } + + ret = regmap_read(tps6594->regmap, TPS6594X_REG_DEV_REV, &otpid); + if (ret) { + dev_err(tps6594->dev, "Failed to read OTP ID\n"); + return ret; + } + + tps6594->rev = otpid; + + i2c_set_clientdata(client, tps6594); + + ret = mfd_add_devices(tps6594->dev, PLATFORM_DEVID_AUTO, tps6594x_cells, + ARRAY_SIZE(tps6594x_cells), NULL, 0, NULL); + + tps = tps6594; + if (of_property_read_bool(node, "ti,system-power-controller")) + pm_power_off = tps6594x_power_off; + + return ret; +} + +static const struct of_device_id of_tps6594x_match_table[] = { + { .compatible = "ti,tps6594x", }, + {} +}; +MODULE_DEVICE_TABLE(of, of_tps6594x_match_table); + +static const struct i2c_device_id tps6594x_id_table[] = { + { "tps6594x", 0 }, + { }, +}; +MODULE_DEVICE_TABLE(i2c, tps6594x_id_table); + +static struct i2c_driver tps6594x_driver = { + .driver = { + .name = "tps6594x", + .of_match_table = of_tps6594x_match_table, + }, + .probe = tps6594x_probe, + .id_table = tps6594x_id_table, +}; +module_i2c_driver(tps6594x_driver); + +MODULE_AUTHOR("J Keerthy "); +MODULE_DESCRIPTION("TPS6594X chip family Multi-Function Device driver"); +MODULE_LICENSE("GPL"); diff --git a/include/linux/mfd/tps6594x.h b/include/linux/mfd/tps6594x.h new file mode 100644 index 000000000000..41349f96f013 --- /dev/null +++ b/include/linux/mfd/tps6594x.h @@ -0,0 +1,66 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * tps6594x.h -- TI TPS6594x + * + * Copyright (C) 2016 Texas Instruments Incorporated - https://www.ti.com/ + */ + +#ifndef __LINUX_MFD_TPS6594X_H +#define __LINUX_MFD_TPS6594X_H + +#include + +/* TPS6594x chip id list */ +#define TPS6594X 0x00 + +/* All register addresses */ +#define TPS6594X_REG_DEV_REV 0x01 +#define TPS6594X_INT_STARTUP 0x65 +#define TPS6594X_INT_MISC 0x66 +#define TPS6594X_CONFIG_1 0x7d +#define TPS6594X_FSM_I2C_TRIGGERS 0x85 +#define TPS6594X_FSM_NSLEEP_TRIGGERS 0x86 + +#define TPS6594X_RTC_SECONDS 0xb5 +#define TPS6594X_RTC_MINUTES 0xb6 +#define TPS6594X_RTC_HOURS 0xb7 +#define TPS6594X_RTC_DAYS 0xb8 +#define TPS6594X_RTC_MONTHS 0xb9 +#define TPS6594X_RTC_YEARS 0xba +#define TPS6594X_RTC_WEEKS 0xbb +#define TPS6594X_ALARM_SECONDS 0xbc +#define TPS6594X_ALARM_MINUTES 0xbd +#define TPS6594X_ALARM_HOURS 0xbe +#define TPS6594X_ALARM_DAYS 0xbf +#define TPS6594X_ALARM_MONTHS 0xc0 +#define TPS6594X_ALARM_YEARS 0xc1 +#define TPS6594X_RTC_CTRL_1 0xc2 +#define TPS6594X_RTC_CTRL_2 0xc3 +#define TPS6594X_RTC_STATUS 0xc4 +#define TPS6594X_RTC_INTERRUPTS 0xc5 +#define TPS6594X_REG_MAX 0xd0 + +/* Register field definitions */ +#define TPS6594X_DEV_REV_DEV_ID 0xff + +#define TPS6594X_RTC_CTRL_REG_GET_TIME BIT(6) +#define TPS6594X_RTC_CTRL_REG_STOP_RTC BIT(0) +#define TPS6594X_RTC_INTERRUPTS_REG_IT_ALARM BIT(3) + +#define TPS6594X_RTC_STATUS_RUN BIT(1) + +/** + * struct tps6594x - state holder for the tps6594x driver + * @dev: struct device pointer for MFD device + * @rev: revision of the tps6594x + * @lock: lock guarding the data structure + * @regmap: register map of the tps6594x PMIC + * + * Device data may be used to access the TPS6594X chip + */ +struct tps6594x { + struct device *dev; + u8 rev; + struct regmap *regmap; +}; +#endif /* __LINUX_MFD_TPS6594X_H */ From patchwork Fri Aug 5 06:43:51 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matt Ranostay X-Patchwork-Id: 595901 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4B54CC25B08 for ; Fri, 5 Aug 2022 06:44:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237582AbiHEGop (ORCPT ); Fri, 5 Aug 2022 02:44:45 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52906 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237424AbiHEGoi (ORCPT ); Fri, 5 Aug 2022 02:44:38 -0400 Received: from fllv0015.ext.ti.com (fllv0015.ext.ti.com [198.47.19.141]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D48D773932; Thu, 4 Aug 2022 23:44:36 -0700 (PDT) Received: from lelv0266.itg.ti.com ([10.180.67.225]) by fllv0015.ext.ti.com (8.15.2/8.15.2) with ESMTP id 2756iVmR089807; Fri, 5 Aug 2022 01:44:31 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1659681871; bh=tMIgJSV7Y1RQfwAdmqGWZgkhahQLp4IB2kJp6Rhgy/o=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=swZlwAkN6dCKWTcevjIXMYCcT8rG6RKa9s9tuYxmn1vn7MzHov9j7Z8P0WvyDe38n R0fnrBMHxgnpRUVjosOAmu5u+VLk/459iL3+ar52Oy/Z1AfaSNy9Yjj35SlBQxFKXZ MjR0xzAUOs6OIlLRDMlnmgV4j52RjTnYK4shnFWg= Received: from DFLE105.ent.ti.com (dfle105.ent.ti.com [10.64.6.26]) by lelv0266.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 2756iVI2059820 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Fri, 5 Aug 2022 01:44:31 -0500 Received: from DFLE114.ent.ti.com (10.64.6.35) by DFLE105.ent.ti.com (10.64.6.26) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2308.14; Fri, 5 Aug 2022 01:44:31 -0500 Received: from lelv0327.itg.ti.com (10.180.67.183) by DFLE114.ent.ti.com (10.64.6.35) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2308.14 via Frontend Transport; Fri, 5 Aug 2022 01:44:31 -0500 Received: from localhost.localdomain (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0327.itg.ti.com (8.15.2/8.15.2) with ESMTP id 2756hvNG086657; Fri, 5 Aug 2022 01:44:24 -0500 From: Matt Ranostay To: , CC: , , , , Keerthy , Matt Ranostay Subject: [PATCH 3/4] rtc: rtc-tps6594x: Add support for TPS6594X PMIC RTC Date: Thu, 4 Aug 2022 23:43:51 -0700 Message-ID: <20220805064352.793918-4-mranostay@ti.com> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20220805064352.793918-1-mranostay@ti.com> References: <20220805064352.793918-1-mranostay@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org From: Keerthy Add support for TPS6594X PMIC RTC. However, currently only get/set of time + date functionality is supported.. Signed-off-by: Keerthy Signed-off-by: Matt Ranostay --- drivers/rtc/Kconfig | 10 ++ drivers/rtc/Makefile | 1 + drivers/rtc/rtc-tps6594x.c | 181 +++++++++++++++++++++++++++++++++++++ 3 files changed, 192 insertions(+) create mode 100644 drivers/rtc/rtc-tps6594x.c diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig index b8de25118ad0..df8e78eed5fb 100644 --- a/drivers/rtc/Kconfig +++ b/drivers/rtc/Kconfig @@ -593,6 +593,16 @@ config RTC_DRV_TPS65910 This driver can also be built as a module. If so, the module will be called rtc-tps65910. +config RTC_DRV_TPS6594X + tristate "TI TPS6594X RTC driver" + depends on MFD_TPS6594X + help + If you say yes here you get support for the RTC of TI TPS6594X series PMIC + chips. + + This driver can also be built as a module. If so, the module + will be called rtc-tps6594x. + config RTC_DRV_RC5T583 tristate "RICOH 5T583 RTC driver" depends on MFD_RC5T583 diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile index aab22bc63432..d854e162275a 100644 --- a/drivers/rtc/Makefile +++ b/drivers/rtc/Makefile @@ -177,6 +177,7 @@ obj-$(CONFIG_RTC_DRV_TEST) += rtc-test.o obj-$(CONFIG_RTC_DRV_TI_K3) += rtc-ti-k3.o obj-$(CONFIG_RTC_DRV_TPS6586X) += rtc-tps6586x.o obj-$(CONFIG_RTC_DRV_TPS65910) += rtc-tps65910.o +obj-$(CONFIG_RTC_DRV_TPS6594X) += rtc-tps6594x.o obj-$(CONFIG_RTC_DRV_TWL4030) += rtc-twl.o obj-$(CONFIG_RTC_DRV_V3020) += rtc-v3020.o obj-$(CONFIG_RTC_DRV_VT8500) += rtc-vt8500.o diff --git a/drivers/rtc/rtc-tps6594x.c b/drivers/rtc/rtc-tps6594x.c new file mode 100644 index 000000000000..e9f904d0a769 --- /dev/null +++ b/drivers/rtc/rtc-tps6594x.c @@ -0,0 +1,181 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * rtc-tps6594x.c -- TPS6594x Real Time Clock driver. + * + * Copyright (C) 2022 Texas Instruments Incorporated - https://www.ti.com + * + * TODO: alarm support + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +struct tps6594x_rtc { + struct rtc_device *rtc; + struct device *dev; +}; + +#define TPS6594X_NUM_TIME_REGS (TPS6594X_RTC_YEARS - TPS6594X_RTC_SECONDS + 1) + +static int tps6594x_rtc_read_time(struct device *dev, struct rtc_time *tm) +{ + unsigned char rtc_data[TPS6594X_NUM_TIME_REGS]; + struct tps6594x *tps6594x = dev_get_drvdata(dev->parent); + int ret; + + /* Reset TPS6594X_RTC_CTRL_REG_GET_TIME bit to zero, required for latch */ + ret = regmap_update_bits(tps6594x->regmap, TPS6594X_RTC_CTRL_1, + TPS6594X_RTC_CTRL_REG_GET_TIME, 0); + if (ret < 0) { + dev_err(dev, "RTC CTRL reg update failed, err: %d\n", ret); + return ret; + } + + /* Copy RTC counting registers to static registers or latches */ + ret = regmap_update_bits(tps6594x->regmap, TPS6594X_RTC_CTRL_1, + TPS6594X_RTC_CTRL_REG_GET_TIME, TPS6594X_RTC_CTRL_REG_GET_TIME); + if (ret < 0) { + dev_err(dev, "RTC CTRL reg update failed, err: %d\n", ret); + return ret; + } + + ret = regmap_bulk_read(tps6594x->regmap, TPS6594X_RTC_SECONDS, + rtc_data, TPS6594X_NUM_TIME_REGS); + if (ret < 0) { + dev_err(dev, "RTC_SECONDS reg read failed, err = %d\n", ret); + return ret; + } + + tm->tm_sec = bcd2bin(rtc_data[0]); + tm->tm_min = bcd2bin(rtc_data[1]); + tm->tm_hour = bcd2bin(rtc_data[2]); + tm->tm_mday = bcd2bin(rtc_data[3]); + tm->tm_mon = bcd2bin(rtc_data[4]) - 1; + tm->tm_year = bcd2bin(rtc_data[5]) + 100; + + return ret; +} + +static int tps6594x_rtc_set_time(struct device *dev, struct rtc_time *tm) +{ + unsigned char rtc_data[TPS6594X_NUM_TIME_REGS]; + struct tps6594x *tps6594x = dev_get_drvdata(dev->parent); + int ret, retries = 5; + unsigned int val; + + rtc_data[0] = bin2bcd(tm->tm_sec); + rtc_data[1] = bin2bcd(tm->tm_min); + rtc_data[2] = bin2bcd(tm->tm_hour); + rtc_data[3] = bin2bcd(tm->tm_mday); + rtc_data[4] = bin2bcd(tm->tm_mon + 1); + rtc_data[5] = bin2bcd(tm->tm_year - 100); + + /* Stop RTC while updating the RTC time registers */ + ret = regmap_update_bits(tps6594x->regmap, TPS6594X_RTC_CTRL_1, + TPS6594X_RTC_CTRL_REG_STOP_RTC, 0); + if (ret < 0) { + dev_err(dev, "RTC stop failed, err = %d\n", ret); + return ret; + } + + /* Waiting till RTC isn't running */ + do { + ret = regmap_read(tps6594x->regmap, TPS6594X_RTC_STATUS, &val); + if (ret < 0) { + dev_err(dev, "RTC_STATUS reg read failed, err = %d\n", ret); + return ret; + } + msleep(20); + } while (--retries && (val & TPS6594X_RTC_STATUS_RUN)); + + if (!retries) { + dev_err(dev, "RTC_STATUS is still RUNNING\n"); + return -ETIMEDOUT; + } + + ret = regmap_bulk_write(tps6594x->regmap, TPS6594X_RTC_SECONDS, + rtc_data, TPS6594X_NUM_TIME_REGS); + if (ret < 0) { + dev_err(dev, "RTC_SECONDS reg write failed, err = %d\n", ret); + return ret; + } + + /* Start back RTC */ + ret = regmap_update_bits(tps6594x->regmap, TPS6594X_RTC_CTRL_1, + TPS6594X_RTC_CTRL_REG_STOP_RTC, + TPS6594X_RTC_CTRL_REG_STOP_RTC); + if (ret < 0) + dev_err(dev, "RTC start failed, err = %d\n", ret); + + return ret; +} + +static const struct rtc_class_ops tps6594x_rtc_ops = { + .read_time = tps6594x_rtc_read_time, + .set_time = tps6594x_rtc_set_time, +}; + +static int tps6594x_rtc_probe(struct platform_device *pdev) +{ + struct tps6594x *tps6594x = dev_get_drvdata(pdev->dev.parent); + struct tps6594x_rtc *tps6594x_rtc = NULL; + int ret; + + tps6594x_rtc = devm_kzalloc(&pdev->dev, sizeof(struct tps6594x_rtc), GFP_KERNEL); + if (!tps6594x_rtc) + return -ENOMEM; + + tps6594x_rtc->dev = &pdev->dev; + platform_set_drvdata(pdev, tps6594x_rtc); + + /* Start RTC */ + ret = regmap_update_bits(tps6594x->regmap, TPS6594X_RTC_CTRL_1, + TPS6594X_RTC_CTRL_REG_STOP_RTC, + TPS6594X_RTC_CTRL_REG_STOP_RTC); + if (ret < 0) { + dev_err(&pdev->dev, "RTC_CTRL write failed, err = %d\n", ret); + return ret; + } + + tps6594x_rtc->rtc = devm_rtc_device_register(&pdev->dev, pdev->name, + &tps6594x_rtc_ops, THIS_MODULE); + if (IS_ERR(tps6594x_rtc->rtc)) { + ret = PTR_ERR(tps6594x_rtc->rtc); + dev_err(&pdev->dev, "RTC register failed, err = %d\n", ret); + return ret; + } + + return 0; +} + +#ifdef CONFIG_OF +static const struct of_device_id of_tps6594x_rtc_match[] = { + { .compatible = "ti,tps6594x-rtc", }, + {}, +}; +MODULE_DEVICE_TABLE(of, of_tps6594x_rtc_match); +#endif + +static struct platform_driver tps6594x_rtc_driver = { + .probe = tps6594x_rtc_probe, + .driver = { + .name = "tps6594x-rtc", + .of_match_table = of_match_ptr(of_tps6594x_rtc_match), + }, +}; + +module_platform_driver(tps6594x_rtc_driver); + +MODULE_ALIAS("platform:tps6594x_rtc"); +MODULE_DESCRIPTION("TI TPS6594x series RTC driver"); +MODULE_AUTHOR("Keerthy J "); +MODULE_LICENSE("GPL"); From patchwork Fri Aug 5 06:43:52 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matt Ranostay X-Patchwork-Id: 595646 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 94E50C00140 for ; Fri, 5 Aug 2022 06:44:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237332AbiHEGor (ORCPT ); Fri, 5 Aug 2022 02:44:47 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53198 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237468AbiHEGoo (ORCPT ); Fri, 5 Aug 2022 02:44:44 -0400 Received: from lelv0143.ext.ti.com (lelv0143.ext.ti.com [198.47.23.248]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AC0ED7434C; Thu, 4 Aug 2022 23:44:43 -0700 (PDT) Received: from fllv0035.itg.ti.com ([10.64.41.0]) by lelv0143.ext.ti.com (8.15.2/8.15.2) with ESMTP id 2756idxm007872; Fri, 5 Aug 2022 01:44:39 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1659681879; bh=6rPE/bXMV/XtZVzrkJNNtd/XO2H6ocUbL1oqvByw9Vw=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=UjkrB1RWx7GcWYfuwFNH8CTQ/+orVxGEVC/vQkuxkywUGRl/C1GsVA3Lxjj+XEppT Iakkax0oVGEvBiZg3RVdF9DAaP5nyw/G/D67V4sqtQXweQrnp6QXCE0YkF9GH0JS+J XSof1r/MDvsFRiFKDwdXlUAoIry85UW1ZBY/g7ns= Received: from DLEE100.ent.ti.com (dlee100.ent.ti.com [157.170.170.30]) by fllv0035.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 2756idl2026653 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Fri, 5 Aug 2022 01:44:39 -0500 Received: from DLEE106.ent.ti.com (157.170.170.36) by DLEE100.ent.ti.com (157.170.170.30) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2308.14; Fri, 5 Aug 2022 01:44:39 -0500 Received: from lelv0327.itg.ti.com (10.180.67.183) by DLEE106.ent.ti.com (157.170.170.36) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2308.14 via Frontend Transport; Fri, 5 Aug 2022 01:44:39 -0500 Received: from localhost.localdomain (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0327.itg.ti.com (8.15.2/8.15.2) with ESMTP id 2756hvNH086657; Fri, 5 Aug 2022 01:44:32 -0500 From: Matt Ranostay To: , CC: , , , , Keerthy Subject: [PATCH 4/4] arm64: dts: ti: k3-j7200-common-proc-board: Add TPS6594x PMIC node Date: Thu, 4 Aug 2022 23:43:52 -0700 Message-ID: <20220805064352.793918-5-mranostay@ti.com> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20220805064352.793918-1-mranostay@ti.com> References: <20220805064352.793918-1-mranostay@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org From: Keerthy Add TPS6594x PMIC + RTC definition for J7200 common processor board device tree. Signed-off-by: Keerthy --- .../boot/dts/ti/k3-j7200-common-proc-board.dts | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts b/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts index 121975dc8239..6deab4f9a04b 100644 --- a/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts +++ b/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts @@ -353,3 +353,19 @@ &pcie1_ep { num-lanes = <2>; status = "disabled"; }; + +&wkup_i2c0 { + status = "okay"; +}; + +&wkup_i2c0 { + tps6594x: tps6594x@48 { + compatible = "ti,tps6594x"; + reg = <0x48>; + ti,system-power-controller; + + rtc { + compatible = "ti,tps6594x-rtc"; + }; + }; +};