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=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, 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 3FE20C2BB4D for ; Mon, 15 Mar 2021 11:43:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 25B1D64DE7 for ; Mon, 15 Mar 2021 11:43:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230430AbhCOLm6 (ORCPT ); Mon, 15 Mar 2021 07:42:58 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43182 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230215AbhCOLmW (ORCPT ); Mon, 15 Mar 2021 07:42:22 -0400 Received: from mail-wr1-x435.google.com (mail-wr1-x435.google.com [IPv6:2a00:1450:4864:20::435]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4C932C06175F; Mon, 15 Mar 2021 04:42:22 -0700 (PDT) Received: by mail-wr1-x435.google.com with SMTP id k8so5513835wrc.3; Mon, 15 Mar 2021 04:42:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:subject:date:message-id:in-reply-to:references:mime-version :content-transfer-encoding; bh=x+kbHxYD4yXl7PVMH3bS/SrVuPgrmDo40N6P/1bnta0=; b=ABnHlS2Ua9Fdz3lYlZkaSlecZlU/jpkIJ2yT3Qb9frKX92zPcszC0Ozz/j3Pp8GV0W NifDk8ZBq9+5c1snKYs9KGbkah+QH33hTT51rNsGLY2d75fndZaQNNjCE/FlHVoycuG6 y/6UrzHndjYJYXIYlt+/ct38DQ9C4HujsEnjIzLoNGrWErat/Cxk/8GvOmh2XdkUyDzF 2iWLyCRqWR2aZd99HVT15y6S9NRtI3g0q84A9IDOlTFy+z5mIRc6Sk/iFvQMErF8bhyS MMLQCzTEyiKJoSaBecaRW732nwyqomgSvS6pCAWNa3uNVy3FXEDWqSjL+GcCnmX4tWuB yc9Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=x+kbHxYD4yXl7PVMH3bS/SrVuPgrmDo40N6P/1bnta0=; b=SR2lC1WLboz6DrQy4Fvj5tpASf+mbrUvBtL3dMBKyslqyrSfFlbOTzCYFIdxkTr9VX OH+VtGYPDjIwQNxaUwMa8ahq1axPApUjZsH9AfjufggPWMuwG6Mo1kIhjemB1fRVjQA+ mRMZOHo6XhrNsF1l18ACvEDjpBVlJ4qrda6zInpAccEoYkOMufRLzArF3t37Ds/cb9gI D/efd9stBi6dgBtcLTs1PuIuS+YjWP4w+aaZXrPpT5x5a2DdnsePeMM0RZQjye4ahrcj rmgxh7ZMV8Cw2IQE1jlMyhw9rr+qngVUxmxZn3AuLqYh7Xu423WA50ws3fuE+PyKWAqB CvhQ== X-Gm-Message-State: AOAM532PlD83RhLSp/kqsAcN+ShSvXlR72LqGZTcvpklkIMWMhU9tPjH d28nNDg+pOz33RrPVqrE5B0= X-Google-Smtp-Source: ABdhPJzCMB2N9O2R2fH44j2nhTLdKn2xCm/YL5kxr7G1TFd0/WjsL7Jdwtt8UiXV5WTqDcCmKPykxw== X-Received: by 2002:a5d:47c3:: with SMTP id o3mr26783605wrc.190.1615808540868; Mon, 15 Mar 2021 04:42:20 -0700 (PDT) Received: from skynet.lan ([80.31.204.166]) by smtp.gmail.com with ESMTPSA id v189sm12648187wme.39.2021.03.15.04.42.19 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 15 Mar 2021 04:42:20 -0700 (PDT) From: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= To: Linus Walleij , Bartosz Golaszewski , Rob Herring , Florian Fainelli , bcm-kernel-feedback-list@broadcom.com, Lee Jones , Michael Walle , =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= , Jonas Gorski , Necip Fazil Yildiran , Andy Shevchenko , linux-gpio@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v7 04/22] pinctrl: bcm: add bcm63xx base code Date: Mon, 15 Mar 2021 12:41:56 +0100 Message-Id: <20210315114214.3096-5-noltari@gmail.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210315114214.3096-1-noltari@gmail.com> References: <20210315114214.3096-1-noltari@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add a helper for registering BCM63XX pin controllers. Co-developed-by: Jonas Gorski Signed-off-by: Jonas Gorski Signed-off-by: Álvaro Fernández Rojas --- v7: revert from fwnode to "of" and look for brcm,bcm63xx-gpio on the parent v6: add changes suggested by Andy Shevchenko v5: add changes suggested by Andy Shevchenko v4: drop IRQ selects from Kconfig and add missing of_node_put() v3: add new patch with shared code drivers/pinctrl/bcm/Kconfig | 7 ++ drivers/pinctrl/bcm/Makefile | 1 + drivers/pinctrl/bcm/pinctrl-bcm63xx.c | 113 ++++++++++++++++++++++++++ drivers/pinctrl/bcm/pinctrl-bcm63xx.h | 43 ++++++++++ 4 files changed, 164 insertions(+) create mode 100644 drivers/pinctrl/bcm/pinctrl-bcm63xx.c create mode 100644 drivers/pinctrl/bcm/pinctrl-bcm63xx.h diff --git a/drivers/pinctrl/bcm/Kconfig b/drivers/pinctrl/bcm/Kconfig index 0ed14de0134c..882f19bdc243 100644 --- a/drivers/pinctrl/bcm/Kconfig +++ b/drivers/pinctrl/bcm/Kconfig @@ -29,6 +29,13 @@ config PINCTRL_BCM2835 help Say Y here to enable the Broadcom BCM2835 GPIO driver. +config PINCTRL_BCM63XX + bool + select GENERIC_PINCONF + select GPIO_REGMAP + select PINCONF + select PINMUX + config PINCTRL_IPROC_GPIO bool "Broadcom iProc GPIO (with PINCONF) driver" depends on OF_GPIO && (ARCH_BCM_IPROC || COMPILE_TEST) diff --git a/drivers/pinctrl/bcm/Makefile b/drivers/pinctrl/bcm/Makefile index 79d5e49fdd9a..0e3cf9b15c65 100644 --- a/drivers/pinctrl/bcm/Makefile +++ b/drivers/pinctrl/bcm/Makefile @@ -3,6 +3,7 @@ obj-$(CONFIG_PINCTRL_BCM281XX) += pinctrl-bcm281xx.o obj-$(CONFIG_PINCTRL_BCM2835) += pinctrl-bcm2835.o +obj-$(CONFIG_PINCTRL_BCM63XX) += pinctrl-bcm63xx.o obj-$(CONFIG_PINCTRL_IPROC_GPIO) += pinctrl-iproc-gpio.o obj-$(CONFIG_PINCTRL_CYGNUS_MUX) += pinctrl-cygnus-mux.o obj-$(CONFIG_PINCTRL_NS) += pinctrl-ns.o diff --git a/drivers/pinctrl/bcm/pinctrl-bcm63xx.c b/drivers/pinctrl/bcm/pinctrl-bcm63xx.c new file mode 100644 index 000000000000..3014326074ad --- /dev/null +++ b/drivers/pinctrl/bcm/pinctrl-bcm63xx.c @@ -0,0 +1,113 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Driver for BCM63xx GPIO unit (pinctrl + GPIO) + * + * Copyright (C) 2021 Álvaro Fernández Rojas + * Copyright (C) 2016 Jonas Gorski + */ + +#include +#include +#include +#include +#include + +#include "pinctrl-bcm63xx.h" + +#define BCM63XX_BANK_SIZE 4 + +#define BCM63XX_DIROUT_REG 0x04 +#define BCM63XX_DATA_REG 0x0c + +static int bcm63xx_reg_mask_xlate(struct gpio_regmap *gpio, + unsigned int base, unsigned int offset, + unsigned int *reg, unsigned int *mask) +{ + unsigned int line = offset % BCM63XX_BANK_GPIOS; + unsigned int stride = offset / BCM63XX_BANK_GPIOS; + + *reg = base - stride * BCM63XX_BANK_SIZE; + *mask = BIT(line); + + return 0; +} + +static const struct of_device_id bcm63xx_gpio_of_match[] = { + { .compatible = "brcm,bcm6318-gpio", }, + { .compatible = "brcm,bcm6328-gpio", }, + { .compatible = "brcm,bcm6358-gpio", }, + { .compatible = "brcm,bcm6362-gpio", }, + { .compatible = "brcm,bcm6368-gpio", }, + { .compatible = "brcm,bcm63268-gpio", }, + { /* sentinel */ } +}; + +static int bcm63xx_gpio_probe(struct device *dev, struct device_node *node, + const struct bcm63xx_pinctrl_soc *soc, + struct bcm63xx_pinctrl *pc) +{ + struct gpio_regmap_config grc = {0}; + + grc.parent = dev; + grc.fwnode = &node->fwnode; + grc.ngpio = soc->ngpios; + grc.ngpio_per_reg = BCM63XX_BANK_GPIOS; + grc.regmap = pc->regs; + grc.reg_mask_xlate = bcm63xx_reg_mask_xlate; + + if (of_property_read_u32(node, "data", &grc.reg_dat_base)) + grc.reg_dat_base = BCM63XX_DATA_REG; + grc.reg_set_base = grc.reg_dat_base; + + if (of_property_read_u32(node, "dirout", &grc.reg_dir_out_base)) + grc.reg_dir_out_base = BCM63XX_DIROUT_REG; + + return PTR_ERR_OR_ZERO(devm_gpio_regmap_register(dev, &grc)); +} + +int bcm63xx_pinctrl_probe(struct platform_device *pdev, + const struct bcm63xx_pinctrl_soc *soc, + void *driver_data) +{ + struct device *dev = &pdev->dev; + struct bcm63xx_pinctrl *pc; + struct device_node *node; + int err; + + pc = devm_kzalloc(dev, sizeof(*pc), GFP_KERNEL); + if (!pc) + return -ENOMEM; + + platform_set_drvdata(pdev, pc); + + pc->dev = dev; + pc->driver_data = driver_data; + + pc->regs = syscon_node_to_regmap(dev->parent->of_node); + if (IS_ERR(pc->regs)) + return PTR_ERR(pc->regs); + + pc->pctl_desc.name = dev_name(dev); + pc->pctl_desc.pins = soc->pins; + pc->pctl_desc.npins = soc->npins; + pc->pctl_desc.pctlops = soc->pctl_ops; + pc->pctl_desc.pmxops = soc->pmx_ops; + pc->pctl_desc.owner = THIS_MODULE; + + pc->pctl_dev = devm_pinctrl_register(dev, &pc->pctl_desc, pc); + if (IS_ERR(pc->pctl_dev)) + return PTR_ERR(pc->pctl_dev); + + for_each_child_of_node(dev->parent->of_node, node) { + if (of_match_node(bcm63xx_gpio_of_match, node)) { + err = bcm63xx_gpio_probe(dev, node, soc, pc); + if (err) { + dev_err(dev, "could not add GPIO chip\n"); + of_node_put(node); + return err; + } + } + } + + return 0; +} diff --git a/drivers/pinctrl/bcm/pinctrl-bcm63xx.h b/drivers/pinctrl/bcm/pinctrl-bcm63xx.h new file mode 100644 index 000000000000..3bdb50021f1b --- /dev/null +++ b/drivers/pinctrl/bcm/pinctrl-bcm63xx.h @@ -0,0 +1,43 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2021 Álvaro Fernández Rojas + * Copyright (C) 2016 Jonas Gorski + */ + +#ifndef __PINCTRL_BCM63XX_H__ +#define __PINCTRL_BCM63XX_H__ + +#include + +#define BCM63XX_BANK_GPIOS 32 + +struct bcm63xx_pinctrl_soc { + struct pinctrl_ops *pctl_ops; + struct pinmux_ops *pmx_ops; + + const struct pinctrl_pin_desc *pins; + unsigned npins; + + unsigned int ngpios; +}; + +struct bcm63xx_pinctrl { + struct device *dev; + struct regmap *regs; + + struct pinctrl_desc pctl_desc; + struct pinctrl_dev *pctl_dev; + + void *driver_data; +}; + +static inline unsigned int bcm63xx_bank_pin(unsigned int pin) +{ + return pin % BCM63XX_BANK_GPIOS; +} + +int bcm63xx_pinctrl_probe(struct platform_device *pdev, + const struct bcm63xx_pinctrl_soc *soc, + void *driver_data); + +#endif /* __PINCTRL_BCM63XX_H__ */ -- 2.20.1 From mboxrd@z Thu Jan 1 00:00:00 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X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210315114214.3096-1-noltari@gmail.com> References: <20210315114214.3096-1-noltari@gmail.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210315_114222_748609_CD203032 X-CRM114-Status: GOOD ( 22.42 ) 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: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org QWRkIGEgaGVscGVyIGZvciByZWdpc3RlcmluZyBCQ002M1hYIHBpbiBjb250cm9sbGVycy4KCkNv LWRldmVsb3BlZC1ieTogSm9uYXMgR29yc2tpIDxqb25hcy5nb3Jza2lAZ21haWwuY29tPgpTaWdu ZWQtb2ZmLWJ5OiBKb25hcyBHb3Jza2kgPGpvbmFzLmdvcnNraUBnbWFpbC5jb20+ClNpZ25lZC1v ZmYtYnk6IMOBbHZhcm8gRmVybsOhbmRleiBSb2phcyA8bm9sdGFyaUBnbWFpbC5jb20+Ci0tLQog 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