From patchwork Mon May 22 16:31:14 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Esteban Blanc X-Patchwork-Id: 1784566 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=2620:137:e000::1:20; helo=out1.vger.email; envelope-from=linux-rtc-owner@vger.kernel.org; receiver=) Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=baylibre-com.20221208.gappssmtp.com header.i=@baylibre-com.20221208.gappssmtp.com header.a=rsa-sha256 header.s=20221208 header.b=3LVyULlC; dkim-atps=neutral Received: from out1.vger.email (out1.vger.email [IPv6:2620:137:e000::1:20]) by legolas.ozlabs.org (Postfix) with ESMTP id 4QQ2yt33vrz2020 for ; Tue, 23 May 2023 02:31:50 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232905AbjEVQbs (ORCPT ); Mon, 22 May 2023 12:31:48 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41174 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229583AbjEVQbq (ORCPT ); Mon, 22 May 2023 12:31:46 -0400 Received: from mail-wr1-x436.google.com (mail-wr1-x436.google.com [IPv6:2a00:1450:4864:20::436]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 86ED81B1 for ; Mon, 22 May 2023 09:31:20 -0700 (PDT) Received: by mail-wr1-x436.google.com with SMTP id ffacd0b85a97d-30a992a9c3eso50883f8f.0 for ; Mon, 22 May 2023 09:31:20 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=baylibre-com.20221208.gappssmtp.com; s=20221208; t=1684773079; x=1687365079; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=pbe+PpwxNeZ9FhCSZTXEhEfAudTQs4JubRLdbyg6O94=; b=3LVyULlCTgSzncTtKceGuNucs35noX1YBKN1hXPSFzrpDD0NzVce8L1UmzsLSdXVQz T71OnrVmdPmjsdZv+Y1aWj6nfl6464UJusmRatVwwY3d8pKhlF/Z3KKbo4MN7IR0/dgC Q+GXXuIBE0T1cH8a9YfL8C9/TRVqowHMXYDMcbWR7wF4dpmG0Zf54aIfiKOiZiPKfDUm H9mjvUC6pVepM5/dcl3SSZ2n7khdcR5iq4YlxLLquHJgxmnOArK08EgcYhNHnoihrXMD YguIf3zUP+coG+uLpjdnxCbebBLjAbf9PssylMw7EKKaNg1juqdj8uYUWDFaUucE+Cxv /Hag== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1684773079; x=1687365079; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=pbe+PpwxNeZ9FhCSZTXEhEfAudTQs4JubRLdbyg6O94=; b=HzGaZIgiT3umFeIISJ/4wFdEf7PXWECaxNhZQF9Nd4gjUj7B3K4hfVdDdX1F/Ob7X0 9cM742XXk3k+EVWczJmjpLVkQ6tSGbTGZPKXnSe+9kRR5iMl8xFINTyXIHm+RG/H3GAO NZMpKksGcHaRF4k8s45jbwAOtkVnQQsd9MGRdAeUHTelbN0PHsLwt5VyZOSzzpUD/If2 v1iFwBSwhiOLaFqRaHRjvtVwqsiWW+3MGDKsD7mRPkYKec/1klgLJD7vhmga8S9gh5Eh CKEKm/Gde1m+fN7APjXrBreq/o0XF6dZhOULzm0sC+wIDNYJg/6zKyont5MsZLTT9lod e3Gw== X-Gm-Message-State: AC+VfDwVSgURqvjNwJQ02dwOkkumc4h/rZ+wmJvvA+5w+c4+/WkYdSXC NPb0p/5Oa/Suh/ZDRD4ES2PbyA== X-Google-Smtp-Source: ACHHUZ4iVmc+AbHfkwdarL7Ex7IJZPsPYdnHwtWC2Z6NyZUOMDHQCts+3IMP0fFjdQvTGtBIM3mkZA== X-Received: by 2002:a5d:6a04:0:b0:30a:8a64:ad0c with SMTP id m4-20020a5d6a04000000b0030a8a64ad0cmr3394757wru.20.1684773078790; Mon, 22 May 2023 09:31:18 -0700 (PDT) Received: from localhost.localdomain ([2a01:e0a:28d:66d0:72d:52cc:8221:fcda]) by smtp.gmail.com with ESMTPSA id y10-20020adff6ca000000b002f103ca90cdsm8152677wrp.101.2023.05.22.09.31.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 22 May 2023 09:31:18 -0700 (PDT) From: Esteban Blanc To: linus.walleij@linaro.org, lgirdwood@gmail.com, broonie@kernel.org, a.zummo@towertech.it, alexandre.belloni@bootlin.com Cc: linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org, linux-rtc@vger.kernel.org, jpanis@baylibre.com, jneanne@baylibre.com, aseketeli@baylibre.com, eblanc@baylibre.com, u-kumar1@ti.com Subject: [PATCH v5 2/3] pinctrl: tps6594: Add driver for TPS6594 pinctrl and GPIOs Date: Mon, 22 May 2023 18:31:14 +0200 Message-Id: <20230522163115.2592883-3-eblanc@baylibre.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230522163115.2592883-1-eblanc@baylibre.com> References: <20230522163115.2592883-1-eblanc@baylibre.com> MIME-Version: 1.0 X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-rtc@vger.kernel.org TI TPS6594 PMIC has 11 GPIOs which can be used for different functions. This patch adds a pinctrl and GPIO drivers in order to use those functions. Signed-off-by: Esteban Blanc --- drivers/pinctrl/Kconfig | 13 ++ drivers/pinctrl/Makefile | 1 + drivers/pinctrl/pinctrl-tps6594.c | 367 ++++++++++++++++++++++++++++++ include/linux/mfd/tps6594.h | 3 +- 4 files changed, 383 insertions(+), 1 deletion(-) create mode 100644 drivers/pinctrl/pinctrl-tps6594.c diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig index 5787c579dcf6..73903fa59776 100644 --- a/drivers/pinctrl/Kconfig +++ b/drivers/pinctrl/Kconfig @@ -480,6 +480,19 @@ config PINCTRL_TB10X depends on OF && ARC_PLAT_TB10X select GPIOLIB +config PINCTRL_TPS6594 + tristate "Pinctrl and GPIO driver for TI TPS6594 PMIC" + depends on MFD_TPS6594 + default MFD_TPS6594 + select PINMUX + select GPIOLIB + select REGMAP + select GPIO_REGMAP + help + Say Y to select the pinmuxing and GPIOs driver for the TPS6594 + PMICs chip family. This driver can also be built as a module + called tps6594-pinctrl. + config PINCTRL_ZYNQ bool "Pinctrl driver for Xilinx Zynq" depends on ARCH_ZYNQ diff --git a/drivers/pinctrl/Makefile b/drivers/pinctrl/Makefile index e196c6e324ad..28271a8d5275 100644 --- a/drivers/pinctrl/Makefile +++ b/drivers/pinctrl/Makefile @@ -49,6 +49,7 @@ obj-$(CONFIG_PINCTRL_ST) += pinctrl-st.o obj-$(CONFIG_PINCTRL_STMFX) += pinctrl-stmfx.o obj-$(CONFIG_PINCTRL_SX150X) += pinctrl-sx150x.o obj-$(CONFIG_PINCTRL_TB10X) += pinctrl-tb10x.o +obj-$(CONFIG_PINCTRL_TPS6594) += pinctrl-tps6594.o obj-$(CONFIG_PINCTRL_ZYNQMP) += pinctrl-zynqmp.o obj-$(CONFIG_PINCTRL_ZYNQ) += pinctrl-zynq.o diff --git a/drivers/pinctrl/pinctrl-tps6594.c b/drivers/pinctrl/pinctrl-tps6594.c new file mode 100644 index 000000000000..e663109249db --- /dev/null +++ b/drivers/pinctrl/pinctrl-tps6594.c @@ -0,0 +1,367 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Pinmux and GPIO driver for tps6594 PMIC + * + * Copyright (C) 2023 BayLibre Incorporated - https://www.baylibre.com/ + */ + +#include +#include +#include +#include +#include + +#include + +#define TPS6594_PINCTRL_PINS_NB 11 + +#define TPS6594_PINCTRL_GPIO_FUNCTION 0 +#define TPS6594_PINCTRL_SCL_I2C2_CS_SPI_FUNCTION 1 +#define TPS6594_PINCTRL_TRIG_WDOG_FUNCTION 1 +#define TPS6594_PINCTRL_CLK32KOUT_FUNCTION 1 +#define TPS6594_PINCTRL_SCLK_SPMI_FUNCTION 1 +#define TPS6594_PINCTRL_SDATA_SPMI_FUNCTION 1 +#define TPS6594_PINCTRL_NERR_MCU_FUNCTION 1 +#define TPS6594_PINCTRL_PDOG_FUNCTION 1 +#define TPS6594_PINCTRL_SYNCCLKIN_FUNCTION 1 +#define TPS6594_PINCTRL_NRSTOUT_SOC_FUNCTION 2 +#define TPS6594_PINCTRL_SYNCCLKOUT_FUNCTION 2 +#define TPS6594_PINCTRL_SDA_I2C2_SDO_SPI_FUNCTION 2 +#define TPS6594_PINCTRL_NERR_SOC_FUNCTION 2 +#define TPS6594_PINCTRL_DISABLE_WDOG_FUNCTION 3 +#define TPS6594_PINCTRL_NSLEEP1_FUNCTION 4 +#define TPS6594_PINCTRL_NSLEEP2_FUNCTION 5 +#define TPS6594_PINCTRL_WKUP1_FUNCTION 6 +#define TPS6594_PINCTRL_WKUP2_FUNCTION 7 + +/* Special muxval for recalcitrant pins */ +#define TPS6594_PINCTRL_DISABLE_WDOG_FUNCTION_GPIO8 2 +#define TPS6594_PINCTRL_SYNCCLKOUT_FUNCTION_GPIO8 3 +#define TPS6594_PINCTRL_CLK32KOUT_FUNCTION_GPIO9 3 + +#define TPS6594_OFFSET_GPIO_SEL 5 + +#define FUNCTION(n, g, v) \ + { \ + .pinfunction = PINCTRL_PINFUNCTION((n), (g), ARRAY_SIZE(g)), \ + .muxval = v, \ + } + +static const struct pinctrl_pin_desc tps6594_pins[TPS6594_PINCTRL_PINS_NB] = { + PINCTRL_PIN(0, "GPIO0"), PINCTRL_PIN(1, "GPIO1"), + PINCTRL_PIN(2, "GPIO2"), PINCTRL_PIN(3, "GPIO3"), + PINCTRL_PIN(4, "GPIO4"), PINCTRL_PIN(5, "GPIO5"), + PINCTRL_PIN(6, "GPIO6"), PINCTRL_PIN(7, "GPIO7"), + PINCTRL_PIN(8, "GPIO8"), PINCTRL_PIN(9, "GPIO9"), + PINCTRL_PIN(10, "GPIO10"), +}; + +static const char *const tps6594_gpio_func_group_names[] = { + "GPIO0", "GPIO1", "GPIO2", "GPIO3", "GPIO4", "GPIO5", + "GPIO6", "GPIO7", "GPIO8", "GPIO9", "GPIO10", +}; +static const char *const tps6594_nsleep1_func_group_names[] = { + "GPIO0", "GPIO1", "GPIO2", "GPIO3", "GPIO4", "GPIO5", + "GPIO6", "GPIO7", "GPIO8", "GPIO9", "GPIO10", +}; +static const char *const tps6594_nsleep2_func_group_names[] = { + "GPIO0", "GPIO1", "GPIO2", "GPIO3", "GPIO4", "GPIO5", + "GPIO6", "GPIO7", "GPIO8", "GPIO9", "GPIO10", +}; +static const char *const tps6594_wkup1_func_group_names[] = { + "GPIO0", "GPIO1", "GPIO2", "GPIO3", "GPIO4", "GPIO5", + "GPIO6", "GPIO7", "GPIO8", "GPIO9", "GPIO10", +}; +static const char *const tps6594_wkup2_func_group_names[] = { + "GPIO0", "GPIO1", "GPIO2", "GPIO3", "GPIO4", "GPIO5", + "GPIO6", "GPIO7", "GPIO8", "GPIO9", "GPIO10", +}; +static const char *const tps6594_scl_i2c2_cs_spi_func_group_names[] = { + "GPIO0", + "GPIO1", +}; +static const char *const tps6594_nrstout_soc_func_group_names[] = { + "GPIO0", + "GPIO10", +}; +static const char *const tps6594_trig_wdog_func_group_names[] = { + "GPIO1", + "GPIO10", +}; +static const char *const tps6594_sda_i2c2_sdo_spi_func_group_names[] = { + "GPIO1", +}; +static const char *const tps6594_clk32kout_func_group_names[] = { + "GPIO2", + "GPIO3", + "GPIO7", +}; +static const char *const tps6594_nerr_soc_func_group_names[] = { + "GPIO2", +}; +static const char *const tps6594_sclk_spmi_func_group_names[] = { + "GPIO4", +}; +static const char *const tps6594_sdata_spmi_func_group_names[] = { + "GPIO5", +}; +static const char *const tps6594_nerr_mcu_func_group_names[] = { + "GPIO6", +}; +static const char *const tps6594_syncclkout_func_group_names[] = { + "GPIO7", + "GPIO9", +}; +static const char *const tps6594_disable_wdog_func_group_names[] = { + "GPIO7", + "GPIO8", +}; +static const char *const tps6594_pdog_func_group_names[] = { + "GPIO8", +}; +static const char *const tps6594_syncclkin_func_group_names[] = { + "GPIO9", +}; + +struct tps6594_pinctrl_function { + struct pinfunction pinfunction; + u8 muxval; +}; + +static const struct tps6594_pinctrl_function pinctrl_functions[] = { + FUNCTION("gpio", tps6594_gpio_func_group_names, + TPS6594_PINCTRL_GPIO_FUNCTION), + FUNCTION("nsleep1", tps6594_nsleep1_func_group_names, + TPS6594_PINCTRL_NSLEEP1_FUNCTION), + FUNCTION("nsleep2", tps6594_nsleep2_func_group_names, + TPS6594_PINCTRL_NSLEEP2_FUNCTION), + FUNCTION("wkup1", tps6594_wkup1_func_group_names, + TPS6594_PINCTRL_WKUP1_FUNCTION), + FUNCTION("wkup2", tps6594_wkup2_func_group_names, + TPS6594_PINCTRL_WKUP2_FUNCTION), + FUNCTION("scl_i2c2-cs_spi", tps6594_scl_i2c2_cs_spi_func_group_names, + TPS6594_PINCTRL_SCL_I2C2_CS_SPI_FUNCTION), + FUNCTION("nrstout_soc", tps6594_nrstout_soc_func_group_names, + TPS6594_PINCTRL_NRSTOUT_SOC_FUNCTION), + FUNCTION("trig_wdog", tps6594_trig_wdog_func_group_names, + TPS6594_PINCTRL_TRIG_WDOG_FUNCTION), + FUNCTION("sda_i2c2-sdo_spi", tps6594_sda_i2c2_sdo_spi_func_group_names, + TPS6594_PINCTRL_SDA_I2C2_SDO_SPI_FUNCTION), + FUNCTION("clk32kout", tps6594_clk32kout_func_group_names, + TPS6594_PINCTRL_CLK32KOUT_FUNCTION), + FUNCTION("nerr_soc", tps6594_nerr_soc_func_group_names, + TPS6594_PINCTRL_NERR_SOC_FUNCTION), + FUNCTION("sclk_spmi", tps6594_sclk_spmi_func_group_names, + TPS6594_PINCTRL_SCLK_SPMI_FUNCTION), + FUNCTION("sdata_spmi", tps6594_sdata_spmi_func_group_names, + TPS6594_PINCTRL_SDATA_SPMI_FUNCTION), + FUNCTION("nerr_mcu", tps6594_nerr_mcu_func_group_names, + TPS6594_PINCTRL_NERR_MCU_FUNCTION), + FUNCTION("syncclkout", tps6594_syncclkout_func_group_names, + TPS6594_PINCTRL_SYNCCLKOUT_FUNCTION), + FUNCTION("disable_wdog", tps6594_disable_wdog_func_group_names, + TPS6594_PINCTRL_DISABLE_WDOG_FUNCTION), + FUNCTION("pdog", tps6594_pdog_func_group_names, + TPS6594_PINCTRL_PDOG_FUNCTION), + FUNCTION("syncclkin", tps6594_syncclkin_func_group_names, + TPS6594_PINCTRL_SYNCCLKIN_FUNCTION), +}; + +struct tps6594_pinctrl { + struct tps6594 *tps; + struct gpio_regmap *gpio_regmap; + struct pinctrl_dev *pctl_dev; + const struct tps6594_pinctrl_function *funcs; + const struct pinctrl_pin_desc *pins; +}; + +static int tps6594_gpio_regmap_xlate(struct gpio_regmap *gpio, + unsigned int base, unsigned int offset, + unsigned int *reg, unsigned int *mask) +{ + unsigned int line = offset % 8; + unsigned int stride = offset / 8; + + switch (base) { + case TPS6594_REG_GPIO1_CONF: + *reg = TPS6594_REG_GPIOX_CONF(offset); + *mask = TPS6594_BIT_GPIO_DIR; + break; + case TPS6594_REG_GPIO_IN_1: + case TPS6594_REG_GPIO_OUT_1: + *reg = base + stride; + *mask = BIT(line); + break; + default: + return -EINVAL; + } + + return 0; +} + +static int tps6594_pmx_func_cnt(struct pinctrl_dev *pctldev) +{ + return ARRAY_SIZE(pinctrl_functions); +} + +static const char *tps6594_pmx_func_name(struct pinctrl_dev *pctldev, + unsigned int selector) +{ + struct tps6594_pinctrl *pinctrl = pinctrl_dev_get_drvdata(pctldev); + + return pinctrl->funcs[selector].pinfunction.name; +} + +static int tps6594_pmx_func_groups(struct pinctrl_dev *pctldev, + unsigned int selector, + const char *const **groups, + unsigned int *num_groups) +{ + struct tps6594_pinctrl *pinctrl = pinctrl_dev_get_drvdata(pctldev); + + *groups = pinctrl->funcs[selector].pinfunction.groups; + *num_groups = pinctrl->funcs[selector].pinfunction.ngroups; + + return 0; +} + +static int tps6594_pmx_set(struct tps6594_pinctrl *pinctrl, unsigned int pin, + u8 muxval) +{ + u8 mux_sel_val = muxval << TPS6594_OFFSET_GPIO_SEL; + + return regmap_update_bits(pinctrl->tps->regmap, + TPS6594_REG_GPIOX_CONF(pin), + TPS6594_MASK_GPIO_SEL, mux_sel_val); +} + +static int tps6594_pmx_set_mux(struct pinctrl_dev *pctldev, + unsigned int function, unsigned int group) +{ + struct tps6594_pinctrl *pinctrl = pinctrl_dev_get_drvdata(pctldev); + u8 muxval = pinctrl->funcs[function].muxval; + + /* Some pins don't have the same muxval for the same function... */ + if (group == 8) { + if (muxval == TPS6594_PINCTRL_DISABLE_WDOG_FUNCTION) + muxval = TPS6594_PINCTRL_DISABLE_WDOG_FUNCTION_GPIO8; + else if (muxval == TPS6594_PINCTRL_SYNCCLKOUT_FUNCTION) + muxval = TPS6594_PINCTRL_SYNCCLKOUT_FUNCTION_GPIO8; + } else if (group == 9) { + if (muxval == TPS6594_PINCTRL_CLK32KOUT_FUNCTION) + muxval = TPS6594_PINCTRL_CLK32KOUT_FUNCTION_GPIO9; + } + + return tps6594_pmx_set(pinctrl, group, muxval); +} + +static int tps6594_pmx_gpio_set_direction(struct pinctrl_dev *pctldev, + struct pinctrl_gpio_range *range, + unsigned int offset, bool input) +{ + struct tps6594_pinctrl *pinctrl = pinctrl_dev_get_drvdata(pctldev); + u8 muxval = pinctrl->funcs[TPS6594_PINCTRL_GPIO_FUNCTION].muxval; + + return tps6594_pmx_set(pinctrl, offset, muxval); +} + +static const struct pinmux_ops tps6594_pmx_ops = { + .get_functions_count = tps6594_pmx_func_cnt, + .get_function_name = tps6594_pmx_func_name, + .get_function_groups = tps6594_pmx_func_groups, + .set_mux = tps6594_pmx_set_mux, + .gpio_set_direction = tps6594_pmx_gpio_set_direction, + .strict = true, +}; + +static int tps6594_groups_cnt(struct pinctrl_dev *pctldev) +{ + return ARRAY_SIZE(tps6594_pins); +} + +static int tps6594_group_pins(struct pinctrl_dev *pctldev, + unsigned int selector, const unsigned int **pins, + unsigned int *num_pins) +{ + struct tps6594_pinctrl *pinctrl = pinctrl_dev_get_drvdata(pctldev); + + *pins = &pinctrl->pins[selector].number; + *num_pins = 1; + + return 0; +} + +static const char *tps6594_group_name(struct pinctrl_dev *pctldev, + unsigned int selector) +{ + struct tps6594_pinctrl *pinctrl = pinctrl_dev_get_drvdata(pctldev); + + return pinctrl->pins[selector].name; +} + +static const struct pinctrl_ops tps6594_pctrl_ops = { + .dt_node_to_map = pinconf_generic_dt_node_to_map_group, + .dt_free_map = pinconf_generic_dt_free_map, + .get_groups_count = tps6594_groups_cnt, + .get_group_name = tps6594_group_name, + .get_group_pins = tps6594_group_pins, +}; + +static int tps6594_pinctrl_probe(struct platform_device *pdev) +{ + struct tps6594 *tps = dev_get_drvdata(pdev->dev.parent); + struct tps6594_pinctrl *pinctrl; + struct pinctrl_desc *pctrl_desc; + struct gpio_regmap_config config = {}; + + pctrl_desc = devm_kzalloc(&pdev->dev, sizeof(*pctrl_desc), GFP_KERNEL); + if (!pctrl_desc) + return -ENOMEM; + pctrl_desc->name = dev_name(&pdev->dev); + pctrl_desc->owner = THIS_MODULE; + pctrl_desc->pins = tps6594_pins; + pctrl_desc->npins = ARRAY_SIZE(tps6594_pins); + pctrl_desc->pctlops = &tps6594_pctrl_ops; + pctrl_desc->pmxops = &tps6594_pmx_ops; + + pinctrl = devm_kzalloc(&pdev->dev, sizeof(*pinctrl), GFP_KERNEL); + if (!pinctrl) + return -ENOMEM; + pinctrl->tps = dev_get_drvdata(pdev->dev.parent); + pinctrl->funcs = pinctrl_functions; + pinctrl->pins = tps6594_pins; + pinctrl->pctl_dev = + devm_pinctrl_register(&pdev->dev, pctrl_desc, pinctrl); + if (IS_ERR(pinctrl->pctl_dev)) { + return dev_err_probe(&pdev->dev, PTR_ERR(pinctrl->pctl_dev), + "Couldn't register pinctrl driver\n"); + } + + config.parent = tps->dev; + config.regmap = tps->regmap; + config.ngpio = TPS6594_PINCTRL_PINS_NB; + config.ngpio_per_reg = 8; + config.reg_dat_base = TPS6594_REG_GPIO_IN_1; + config.reg_set_base = TPS6594_REG_GPIO_OUT_1; + config.reg_dir_out_base = TPS6594_REG_GPIO1_CONF; + config.reg_mask_xlate = tps6594_gpio_regmap_xlate; + + pinctrl->gpio_regmap = devm_gpio_regmap_register(&pdev->dev, &config); + if (IS_ERR(pinctrl->gpio_regmap)) { + return dev_err_probe(&pdev->dev, PTR_ERR(pinctrl->gpio_regmap), + "Couldn't register gpio_regmap driver\n"); + } + + return 0; +} + +static struct platform_driver tps6594_pinctrl_driver = { + .driver = { .name = "tps6594-pinctrl" }, + .probe = tps6594_pinctrl_probe, +}; + +module_platform_driver(tps6594_pinctrl_driver); +MODULE_ALIAS("platform:tps6594-pinctrl"); +MODULE_AUTHOR("Esteban Blanc "); +MODULE_DESCRIPTION("TPS6594 pinctrl and GPIO driver"); +MODULE_LICENSE("GPL"); diff --git a/include/linux/mfd/tps6594.h b/include/linux/mfd/tps6594.h index 3f7c5e23cd4c..2792841f555c 100644 --- a/include/linux/mfd/tps6594.h +++ b/include/linux/mfd/tps6594.h @@ -47,7 +47,8 @@ enum pmic_id { #define TPS6594_REG_VMON2_PG_WINDOW 0x2f #define TPS6594_REG_VMON2_PG_LEVEL 0x30 -#define TPS6594_REG_GPIOX_CONF(gpio_inst) (0x31 + (gpio_inst)) +// Used to compute register address of GPIO1_CONF to GPIO11_CONF +#define TPS6594_REG_GPIOX_CONF(gpio_inst) (0x31 + (gpio_inst)) #define TPS6594_REG_NPWRON_CONF 0x3c #define TPS6594_REG_GPIO_OUT_1 0x3d #define TPS6594_REG_GPIO_OUT_2 0x3e