From patchwork Wed Mar 25 15:38:39 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Abel Vesa X-Patchwork-Id: 11458125 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 8D5221392 for ; Wed, 25 Mar 2020 15:39:43 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 6C7A02077D for ; Wed, 25 Mar 2020 15:39:43 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="fFrQsIEW" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6C7A02077D Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=nxp.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=phQt+jvKUH67uZtf8I38XaDDFtSRytwc4gZ13TfCz0M=; b=fFrQsIEWfHsFul/8Blh1nwiaQt OhxVh0o8LNjSx+O2V/i0qnyMZq1Jumg3bVTWIJ/kU+AepxQqI7eUF958/l6pbb/aICLKYMcPDj/sF k5dUS/bU75gwra4wqbDKJYtv3bT26iBaZMk3je3e4e22s5bBURJ5762fCuRH+3dhPqD8LZ6oO8AmQ 2HdHDDRakEinRJzOoGhOKIIGCEZHgtA0Nib4mq7GxWZR4ai9bPDmEWHoFP0NfY8wOLdETUyT/f5JG AXRkPsXiL8FX+TpQ3tP7GL0MFcF5srLq0F1ZRs52yiT5Jz9FIIxXDe+3vNAuTwQM0XdUNZLRbS+u+ KQKlPFtw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jH883-0007Fx-KH; Wed, 25 Mar 2020 15:39:39 +0000 Received: from inva020.nxp.com ([92.121.34.13]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jH87r-00072U-Cq for linux-arm-kernel@lists.infradead.org; Wed, 25 Mar 2020 15:39:29 +0000 Received: from inva020.nxp.com (localhost [127.0.0.1]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id 23E501A04FA; Wed, 25 Mar 2020 16:39:24 +0100 (CET) Received: from inva024.eu-rdc02.nxp.com (inva024.eu-rdc02.nxp.com [134.27.226.22]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id 1690F1A00F9; Wed, 25 Mar 2020 16:39:24 +0100 (CET) Received: from fsr-ub1664-175.ea.freescale.net (fsr-ub1664-175.ea.freescale.net [10.171.82.40]) by inva024.eu-rdc02.nxp.com (Postfix) with ESMTP id 61A9E203CE; Wed, 25 Mar 2020 16:39:23 +0100 (CET) From: Abel Vesa To: Rob Herring , Shawn Guo , Sascha Hauer , Fabio Estevam , Mike Turquette , Stephen Boyd , Lee Jones , Anson Huang , Leonard Crestez , Peng Fan , Jacky Bai , Philipp Zabel Subject: [PATCH v2 01/13] mfd: Add i.MX generic mix support Date: Wed, 25 Mar 2020 17:38:39 +0200 Message-Id: <1585150731-3354-2-git-send-email-abel.vesa@nxp.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1585150731-3354-1-git-send-email-abel.vesa@nxp.com> References: <1585150731-3354-1-git-send-email-abel.vesa@nxp.com> X-Virus-Scanned: ClamAV using ClamSMTP X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200325_083927_709305_D90EBE26 X-CRM114-Status: GOOD ( 14.11 ) X-Spam-Score: -2.3 (--) X-Spam-Report: SpamAssassin version 3.4.4 on bombadil.infradead.org summary: Content analysis details: (-2.3 points) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at https://www.dnswl.org/, medium trust [92.121.34.13 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Abel Vesa , Linux Kernel Mailing List , NXP Linux Team , linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Some of the i.MX SoCs have a IP for interfacing the dedicated IPs with clocks, resets and interrupts, plus some other specific control registers. To allow the functionality to be split between drivers, this MFD driver is added that has only two purposes: register the devices and map the entire register addresses. Everything else is left to the dedicated drivers that will bind to the registered devices. Signed-off-by: Abel Vesa --- drivers/mfd/Kconfig | 11 +++++++++++ drivers/mfd/Makefile | 1 + drivers/mfd/imx-mix.c | 48 ++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 60 insertions(+) create mode 100644 drivers/mfd/imx-mix.c diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 3c547ed..3c89288 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -460,6 +460,17 @@ config MFD_MX25_TSADC i.MX25 processors. They consist of a conversion queue for general purpose ADC and a queue for Touchscreens. +config MFD_IMX_MIX + tristate "NXP i.MX Generic Mix Control Driver" + depends on OF || COMPILE_TEST + help + Enable generic mixes support. On some i.MX platforms, there are + devices that are a mix of multiple functionalities like reset + controllers, clock controllers and some others. In order to split + those functionalities between the right drivers, this MFD populates + with virtual devices based on what's found in the devicetree node, + leaving the rest of the behavior control to the dedicated driver. + config MFD_HI6421_PMIC tristate "HiSilicon Hi6421 PMU/Codec IC" depends on OF diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index f935d10..5b2ae5d 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -113,6 +113,7 @@ obj-$(CONFIG_MFD_TWL4030_AUDIO) += twl4030-audio.o obj-$(CONFIG_TWL6040_CORE) += twl6040.o obj-$(CONFIG_MFD_MX25_TSADC) += fsl-imx25-tsadc.o +obj-$(CONFIG_MFD_IMX_MIX) += imx-mix.o obj-$(CONFIG_MFD_MC13XXX) += mc13xxx-core.o obj-$(CONFIG_MFD_MC13XXX_SPI) += mc13xxx-spi.o diff --git a/drivers/mfd/imx-mix.c b/drivers/mfd/imx-mix.c new file mode 100644 index 00000000..f3b2006 --- /dev/null +++ b/drivers/mfd/imx-mix.c @@ -0,0 +1,48 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright 2019 NXP. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +static int imx_mix_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct resource *res; + void __iomem *base; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + base = devm_ioremap_resource(dev, res); + if (IS_ERR(base)) + return PTR_ERR(base); + + dev_set_drvdata(dev, base); + + return devm_of_platform_populate(dev); +} + +static const struct of_device_id imx_mix_of_match[] = { + { .compatible = "fsl,imx8mp-mix" }, + { /* Sentinel */ }, +}; +MODULE_DEVICE_TABLE(of, imx_mix_of_match); + +static struct platform_driver imx_mix_driver = { + .probe = imx_mix_probe, + .driver = { + .name = "imx-mix", + .of_match_table = of_match_ptr(imx_mix_of_match), + }, +}; +module_platform_driver(imx_mix_driver);