From patchwork Fri Nov 18 09:22:18 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matt Ranostay X-Patchwork-Id: 13047909 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id D5B89C433FE for ; Fri, 18 Nov 2022 09:24:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=Kfc+kG9QwWZeY9MHSpwSITFO0AJsmme8eZBjXarWMGs=; b=yqtEnXnyJEH8MJ KfYlcqhqmULVquSbLH5GFPbkoEpfOqT62s8fKE3NNNj5h5zFrRrcLcjRh2xGhr2klp2+iZm3oVcUQ aguZFohIKegxjvwEzE5g0FgdQYL6TqBwqGMwBSJYiIO4QeHDDCsjmw8u6In09JK7bSkTj0RVPkBYm Sw9EbZGhTTH9P7+Bo8Xxbk6c55IkJVtIsjo/4IxI15rYvMI2Ufid+3ZpFEIzCpsZwIyZrirVYCnA+ 5+n1+N94MRrlswyfUlZd6YjmfF62z3rPx8r2i++LibdDKBUwLY7/OD8l8U1mR4HryHlIWEk38vw/b wW3b/pOVEDR55tNlJqfQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1ovxam-0033sy-G6; Fri, 18 Nov 2022 09:23:24 +0000 Received: from fllv0016.ext.ti.com ([198.47.19.142]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1ovxaI-0033gT-3Y for linux-arm-kernel@lists.infradead.org; Fri, 18 Nov 2022 09:22:55 +0000 Received: from lelv0266.itg.ti.com ([10.180.67.225]) by fllv0016.ext.ti.com (8.15.2/8.15.2) with ESMTP id 2AI9Mh7c089012; Fri, 18 Nov 2022 03:22:43 -0600 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1668763363; bh=YfY1G9SWBu/P/IsT935fulLEbwN9xeyiglcojcgB5MM=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=dcBbOq0IdS2GMqWulF8I+T0KHbW/ov8mDlGX72GUDlMIh3IsPNr79ReOQn7XiZ8cs e15TgmOoWnKHAinalJh93Xk4gDs4jjt1zqD0ru1hEoeflVC3pk071PHyKqRd3MqRK6 OkVkwkCTNrQFt2KEPaluZD4opE4nwUkW7/l0adio= Received: from DFLE103.ent.ti.com (dfle103.ent.ti.com [10.64.6.24]) by lelv0266.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 2AI9Mhlp029997 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Fri, 18 Nov 2022 03:22:43 -0600 Received: from DFLE111.ent.ti.com (10.64.6.32) by DFLE103.ent.ti.com (10.64.6.24) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.16; Fri, 18 Nov 2022 03:22:42 -0600 Received: from fllv0039.itg.ti.com (10.64.41.19) by DFLE111.ent.ti.com (10.64.6.32) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.16 via Frontend Transport; Fri, 18 Nov 2022 03:22:42 -0600 Received: from localhost (ileaxei01-snat2.itg.ti.com [10.180.69.6]) by fllv0039.itg.ti.com (8.15.2/8.15.2) with ESMTP id 2AI9Mdbb060374; Fri, 18 Nov 2022 03:22:41 -0600 From: Matt Ranostay To: , , , , , , CC: , , , , Matt Ranostay Subject: [PATCH v4 4/4] gpio: gpio-tps6594x: add GPIO support for TPS6594x PMIC Date: Fri, 18 Nov 2022 01:22:18 -0800 Message-ID: <20221118092218.480147-5-mranostay@ti.com> X-Mailer: git-send-email 2.38.GIT In-Reply-To: <20221118092218.480147-1-mranostay@ti.com> References: <20221118092218.480147-1-mranostay@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20221118_012254_252883_53277AB1 X-CRM114-Status: GOOD ( 21.07 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Add support for TPS6594X PMICs GPIO interface that has 11 that can be configured as input or outputs. Signed-off-by: Matt Ranostay Reviewed-by: Bartosz Golaszewski Reviewed-by: Linus Walleij --- drivers/gpio/Kconfig | 9 +++++ drivers/gpio/Makefile | 1 + drivers/gpio/gpio-tps6594x.c | 78 ++++++++++++++++++++++++++++++++++++ include/linux/mfd/tps6594x.h | 4 ++ 4 files changed, 92 insertions(+) create mode 100644 drivers/gpio/gpio-tps6594x.c diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig index ec7cfd4f52b1..6b65c790efe7 100644 --- a/drivers/gpio/Kconfig +++ b/drivers/gpio/Kconfig @@ -1405,6 +1405,15 @@ config GPIO_TPS65912 help This driver supports TPS65912 GPIO chip. +config GPIO_TPS6594X + tristate "TI TPS6594X GPIO driver" + depends on MFD_TPS6594X || COMPILE_TEST + select REGMAP + select GPIO_REGMAP + help + Select this option to enable GPIO driver for the TPS6954X + PMIC chip family. There are 11 GPIOs that can be configured. + config GPIO_TPS68470 tristate "TPS68470 GPIO" depends on INTEL_SKL_INT3472 diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile index 010587025fc8..9892f9adc5b5 100644 --- a/drivers/gpio/Makefile +++ b/drivers/gpio/Makefile @@ -159,6 +159,7 @@ obj-$(CONFIG_GPIO_TPS65218) += gpio-tps65218.o obj-$(CONFIG_GPIO_TPS6586X) += gpio-tps6586x.o obj-$(CONFIG_GPIO_TPS65910) += gpio-tps65910.o obj-$(CONFIG_GPIO_TPS65912) += gpio-tps65912.o +obj-$(CONFIG_GPIO_TPS6594X) += gpio-tps6594x.o obj-$(CONFIG_GPIO_TPS68470) += gpio-tps68470.o obj-$(CONFIG_GPIO_TQMX86) += gpio-tqmx86.o obj-$(CONFIG_GPIO_TS4800) += gpio-ts4800.o diff --git a/drivers/gpio/gpio-tps6594x.c b/drivers/gpio/gpio-tps6594x.c new file mode 100644 index 000000000000..733fedba70cb --- /dev/null +++ b/drivers/gpio/gpio-tps6594x.c @@ -0,0 +1,78 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * GPIO driver for TI TPS6594x PMICs + * + * Copyright (C) 2022 Texas Instruments Incorporated - http://www.ti.com/ + */ + +#include +#include +#include +#include + +#include +#include +#include + +#define GPIO_BANK_SIZE 8 +#define GPIO_CFG_MASK BIT(0) + +static int tps6594x_regmap_xlate(struct gpio_regmap *gpio, + unsigned int base, unsigned int offset, + unsigned int *reg, unsigned int *mask) +{ + if (base == TPS6594X_GPIO_CONF) { + *reg = base + offset; + *mask = GPIO_CFG_MASK; + } else { + unsigned int line = offset % GPIO_BANK_SIZE; + unsigned int stride = offset / GPIO_BANK_SIZE; + + *reg = base + stride; + *mask = BIT(line); + } + + return 0; +} + +static int tps6594x_gpio_probe(struct platform_device *pdev) +{ + struct gpio_regmap_config config = {0}; + struct regmap *regmap; + + regmap = dev_get_regmap(pdev->dev.parent, NULL); + if (!regmap) + return -ENODEV; + + config.regmap = regmap; + config.parent = &pdev->dev; + config.ngpio = 11; + config.ngpio_per_reg = GPIO_BANK_SIZE; + + config.reg_dat_base = TPS6594X_GPIO_IN; + config.reg_set_base = TPS6594X_GPIO_OUT; + config.reg_dir_out_base = TPS6594X_GPIO_CONF; + config.reg_mask_xlate = tps6594x_regmap_xlate; + + return PTR_ERR_OR_ZERO(devm_gpio_regmap_register(&pdev->dev, &config)); +} + +static const struct of_device_id of_tps6594x_gpio_match[] = { + { .compatible = "ti,tps6594-gpio", }, + {}, +}; +MODULE_DEVICE_TABLE(of, of_tps6594x_gpio_match); + +static struct platform_driver tps6594x_gpio_driver = { + .driver = { + .name = "tps6594-gpio", + .of_match_table = of_tps6594x_gpio_match, + }, + .probe = tps6594x_gpio_probe, +}; +module_platform_driver(tps6594x_gpio_driver); + +MODULE_ALIAS("platform:tps6594-gpio"); +MODULE_AUTHOR("Matt Ranostay "); +MODULE_DESCRIPTION("TPS6594X GPIO driver"); +MODULE_LICENSE("GPL"); diff --git a/include/linux/mfd/tps6594x.h b/include/linux/mfd/tps6594x.h index 5a6af0da9223..155618e4d5d0 100644 --- a/include/linux/mfd/tps6594x.h +++ b/include/linux/mfd/tps6594x.h @@ -21,6 +21,10 @@ #define TPS6594X_FSM_I2C_TRIGGERS 0x85 #define TPS6594X_FSM_NSLEEP_TRIGGERS 0x86 +#define TPS6594X_GPIO_CONF 0x31 +#define TPS6594X_GPIO_OUT 0x3d +#define TPS6594X_GPIO_IN 0x3f + #define TPS6594X_RTC_SECONDS 0xb5 #define TPS6594X_RTC_MINUTES 0xb6 #define TPS6594X_RTC_HOURS 0xb7