From patchwork Fri Aug 9 20:27:42 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arnd Bergmann X-Patchwork-Id: 11087569 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 3EC7A1399 for ; Fri, 9 Aug 2019 20:29:17 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 24DB920587 for ; Fri, 9 Aug 2019 20:29:17 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 18A0D205E9; Fri, 9 Aug 2019 20:29:17 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.6 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_LOW autolearn=ham version=3.3.1 Received: from web01.groups.io (web01.groups.io [66.175.222.12]) (using TLSv1.2 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 6576C20587 for ; Fri, 9 Aug 2019 20:29:16 +0000 (UTC) X-Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by groups.io with SMTP; Fri, 09 Aug 2019 13:29:15 -0700 X-Received: by mail.kernel.org (Postfix) id 7762921743; Fri, 9 Aug 2019 20:29:15 +0000 (UTC) X-Received: from mout.kundenserver.de (mout.kundenserver.de [212.227.126.135]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id EAC552166E for ; Fri, 9 Aug 2019 20:29:14 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org EAC552166E X-Received: from threadripper.lan ([149.172.19.189]) by mrelayeu.kundenserver.de (mreue009 [212.227.15.129]) with ESMTPA (Nemesis) id 1MV6G6-1hmnLD3sJC-00SB7i; Fri, 09 Aug 2019 22:29:06 +0200 From: Arnd Bergmann To: Linuxkernel+Patchwork-Soc via Email Integration Cc: Arnd Bergmann , Alessandro Zummo , Alexandre Belloni , linux-kernel@vger.kernel.org, linux-rtc@vger.kernel.org Subject: [PATCH 14/16] rtc: remove w90x900/nuc900 driver Date: Fri, 9 Aug 2019 22:27:42 +0200 Message-Id: <20190809202749.742267-15-arnd@arndb.de> In-Reply-To: <20190809202749.742267-1-arnd@arndb.de> References: <20190809202749.742267-1-arnd@arndb.de> MIME-Version: 1.0 X-Provags-ID: V03:K1:G8qc/wYNLtJbkuHPeqI/QzOt8e9lF3Tmm4TBFiQWdZlmGL8c/cp uogjri1+5d1ebyNGebf3HL2775NUYtbTwPNEdG6HjjGSa3v+fdZWaNB5xvRmCWZvBOlzhFK 02BZy0I0AwwEX4ltQ3LXfCkwRPDAR2DDdrqPqhXkPFH8+gDCCLcEbxe8EgvxTkgp+6wtjLB PWonxDLwlz2h1Km/+kpHQ== X-UI-Out-Filterresults: notjunk:1;V03:K0:6WFg8zv6ofE=:u2heJHDISJ0KANbIVxC8fY OXFKBbZSGDola/OaViuqgSk1YxYZIbOLhDLB1RkAOngCyX8BwbA1QI+42sQLGnfclJtiBqOv0 TsrS54687OMHU3eIf0YBb+GYjy6TdQ28Zbj4Xi6MJd1W2ulGBlgkCa/ZXaMushUI0y/Kil9XL sw5uaGjdK9PA496+DHU+ibjt6gcsUaGO+bYe3BdahvShf4RKVib2uqB5SK7gwk9Y+7pJX9iQx PfVXh57E6D3OTeLrM6QkamcJWMfCU1tQtkiKTOTYee62i/HorzSE8t2VzJoKavi3KbCC2XrY4 Ue4nh6qBjHAqcXKyp9dIOxsviInlLzHe4cBrICmBOj9xPdEUNhG7qVe01bZvKGbuEXaOnn2nG zSbHglhQ2l0eD//ZtMcyqD+kbqdO+qj5hv2ORitZzjS9rcqlbf9KX2AXtaAYYGHnlCxrItkXx 2W/p8ZYslRZYcB5tPT9e1wrzBE6hvHZq/PtbZdvIeBMnBm1//Mhid815/r+VYL0JaumdZHWVz rzsISkJRfIqsccyHQocofq2OYF23omZkA0GiJhFoqNDkflC1th3FKD/udsth/fPlfgvRkOCOq 0WC0rMgDfWA7L/oJCA0++O8dUJZVphqEN0rxAI+buCDP026NiP7nu4+cE2LocDPH/wPdp1NV4 gYUh1CFgOXgL/HyLz8q61WfIpgwcnVcn8cTm9ktf7XYKA7idtjyqrtG19W33mxxEC3tu0MHrB sBXETIP7FcjvU6fHtrm47wQ130fl/jAH2kAcrg== Precedence: Bulk List-Unsubscribe: Sender: patchwork-soc@linux.kernel.org List-Id: Mailing-List: list patchwork-soc@linux.kernel.org; contact patchwork-soc+owner@linux.kernel.org Delivered-To: mailing list patchwork-soc@linux.kernel.org Reply-To: patchwork-soc+owner@linux.kernel.org DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux.kernel.org; q=dns/txt; s=20140610; t=1565382556; bh=QQKgVryHfMcXfqjZDSDudaiEQYzSH1HCxuZyzOLtBuY=; h=Cc:Content-Type:Date:From:Reply-To:Subject:To; b=Zn1Fw6c+6vPpFWpY4cXEXiGTfoQfhRQB0JbBt4gjXKcHYo1qJV/Oq2mwBw5OrWKphcs l/dpEbxbiEmGD/lTkaup9WEzIU/LkNoYb9qxb2QhOtwaiTtUWeX09GnHK8xaj/VZ7r3oG VRnrR6B9iXxzFY+u9EUbZJs9yW0BbjU/kUU= X-Virus-Scanned: ClamAV using ClamSMTP The ARM w90x900 platform is getting removed, so this driver is obsolete. Signed-off-by: Arnd Bergmann --- drivers/rtc/Kconfig | 7 - drivers/rtc/Makefile | 1 - drivers/rtc/rtc-nuc900.c | 271 --------------------------------------- 3 files changed, 279 deletions(-) delete mode 100644 drivers/rtc/rtc-nuc900.c diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig index e72f65b61176..2805cbb32ade 100644 --- a/drivers/rtc/Kconfig +++ b/drivers/rtc/Kconfig @@ -1247,13 +1247,6 @@ config RTC_DRV_AB8500 Select this to enable the ST-Ericsson AB8500 power management IC RTC support. This chip contains a battery- and capacitor-backed RTC. -config RTC_DRV_NUC900 - tristate "NUC910/NUC920 RTC driver" - depends on ARCH_W90X900 || COMPILE_TEST - help - If you say yes here you get support for the RTC subsystem of the - NUC910/NUC920 used in embedded systems. - config RTC_DRV_OPAL tristate "IBM OPAL RTC driver" depends on PPC_POWERNV diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile index 6b09c21dc1b6..9fe0e938272c 100644 --- a/drivers/rtc/Makefile +++ b/drivers/rtc/Makefile @@ -113,7 +113,6 @@ obj-$(CONFIG_RTC_DRV_MT7622) += rtc-mt7622.o obj-$(CONFIG_RTC_DRV_MV) += rtc-mv.o obj-$(CONFIG_RTC_DRV_MXC) += rtc-mxc.o obj-$(CONFIG_RTC_DRV_MXC_V2) += rtc-mxc_v2.o -obj-$(CONFIG_RTC_DRV_NUC900) += rtc-nuc900.o obj-$(CONFIG_RTC_DRV_OMAP) += rtc-omap.o obj-$(CONFIG_RTC_DRV_OPAL) += rtc-opal.o obj-$(CONFIG_RTC_DRV_PALMAS) += rtc-palmas.o diff --git a/drivers/rtc/rtc-nuc900.c b/drivers/rtc/rtc-nuc900.c deleted file mode 100644 index 49cc4058614d..000000000000 --- a/drivers/rtc/rtc-nuc900.c +++ /dev/null @@ -1,271 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Copyright (c) 2008-2009 Nuvoton technology corporation. - * - * Wan ZongShun - */ - -#include -#include -#include -#include -#include -#include -#include -#include - -/* RTC Control Registers */ -#define REG_RTC_INIR 0x00 -#define REG_RTC_AER 0x04 -#define REG_RTC_FCR 0x08 -#define REG_RTC_TLR 0x0C -#define REG_RTC_CLR 0x10 -#define REG_RTC_TSSR 0x14 -#define REG_RTC_DWR 0x18 -#define REG_RTC_TAR 0x1C -#define REG_RTC_CAR 0x20 -#define REG_RTC_LIR 0x24 -#define REG_RTC_RIER 0x28 -#define REG_RTC_RIIR 0x2C -#define REG_RTC_TTR 0x30 - -#define RTCSET 0x01 -#define AERRWENB 0x10000 -#define INIRRESET 0xa5eb1357 -#define AERPOWERON 0xA965 -#define AERPOWEROFF 0x0000 -#define LEAPYEAR 0x0001 -#define TICKENB 0x80 -#define TICKINTENB 0x0002 -#define ALARMINTENB 0x0001 -#define MODE24 0x0001 - -struct nuc900_rtc { - int irq_num; - void __iomem *rtc_reg; - struct rtc_device *rtcdev; -}; - -struct nuc900_bcd_time { - int bcd_sec; - int bcd_min; - int bcd_hour; - int bcd_mday; - int bcd_mon; - int bcd_year; -}; - -static irqreturn_t nuc900_rtc_interrupt(int irq, void *_rtc) -{ - struct nuc900_rtc *rtc = _rtc; - unsigned long events = 0, rtc_irq; - - rtc_irq = __raw_readl(rtc->rtc_reg + REG_RTC_RIIR); - - if (rtc_irq & ALARMINTENB) { - rtc_irq &= ~ALARMINTENB; - __raw_writel(rtc_irq, rtc->rtc_reg + REG_RTC_RIIR); - events |= RTC_AF | RTC_IRQF; - } - - if (rtc_irq & TICKINTENB) { - rtc_irq &= ~TICKINTENB; - __raw_writel(rtc_irq, rtc->rtc_reg + REG_RTC_RIIR); - events |= RTC_UF | RTC_IRQF; - } - - rtc_update_irq(rtc->rtcdev, 1, events); - - return IRQ_HANDLED; -} - -static int *check_rtc_access_enable(struct nuc900_rtc *nuc900_rtc) -{ - unsigned int timeout = 0x1000; - __raw_writel(INIRRESET, nuc900_rtc->rtc_reg + REG_RTC_INIR); - - mdelay(10); - - __raw_writel(AERPOWERON, nuc900_rtc->rtc_reg + REG_RTC_AER); - - while (!(__raw_readl(nuc900_rtc->rtc_reg + REG_RTC_AER) & AERRWENB) - && --timeout) - mdelay(1); - - if (!timeout) - return ERR_PTR(-EPERM); - - return NULL; -} - -static void nuc900_rtc_bcd2bin(unsigned int timereg, - unsigned int calreg, struct rtc_time *tm) -{ - tm->tm_mday = bcd2bin(calreg >> 0); - tm->tm_mon = bcd2bin(calreg >> 8); - tm->tm_year = bcd2bin(calreg >> 16) + 100; - - tm->tm_sec = bcd2bin(timereg >> 0); - tm->tm_min = bcd2bin(timereg >> 8); - tm->tm_hour = bcd2bin(timereg >> 16); -} - -static void nuc900_rtc_bin2bcd(struct device *dev, struct rtc_time *settm, - struct nuc900_bcd_time *gettm) -{ - gettm->bcd_mday = bin2bcd(settm->tm_mday) << 0; - gettm->bcd_mon = bin2bcd(settm->tm_mon) << 8; - - if (settm->tm_year < 100) { - dev_warn(dev, "The year will be between 1970-1999, right?\n"); - gettm->bcd_year = bin2bcd(settm->tm_year) << 16; - } else { - gettm->bcd_year = bin2bcd(settm->tm_year - 100) << 16; - } - - gettm->bcd_sec = bin2bcd(settm->tm_sec) << 0; - gettm->bcd_min = bin2bcd(settm->tm_min) << 8; - gettm->bcd_hour = bin2bcd(settm->tm_hour) << 16; -} - -static int nuc900_alarm_irq_enable(struct device *dev, unsigned int enabled) -{ - struct nuc900_rtc *rtc = dev_get_drvdata(dev); - - if (enabled) - __raw_writel(__raw_readl(rtc->rtc_reg + REG_RTC_RIER)| - (ALARMINTENB), rtc->rtc_reg + REG_RTC_RIER); - else - __raw_writel(__raw_readl(rtc->rtc_reg + REG_RTC_RIER)& - (~ALARMINTENB), rtc->rtc_reg + REG_RTC_RIER); - - return 0; -} - -static int nuc900_rtc_read_time(struct device *dev, struct rtc_time *tm) -{ - struct nuc900_rtc *rtc = dev_get_drvdata(dev); - unsigned int timeval, clrval; - - timeval = __raw_readl(rtc->rtc_reg + REG_RTC_TLR); - clrval = __raw_readl(rtc->rtc_reg + REG_RTC_CLR); - - nuc900_rtc_bcd2bin(timeval, clrval, tm); - - return 0; -} - -static int nuc900_rtc_set_time(struct device *dev, struct rtc_time *tm) -{ - struct nuc900_rtc *rtc = dev_get_drvdata(dev); - struct nuc900_bcd_time gettm; - unsigned long val; - int *err; - - nuc900_rtc_bin2bcd(dev, tm, &gettm); - - err = check_rtc_access_enable(rtc); - if (IS_ERR(err)) - return PTR_ERR(err); - - val = gettm.bcd_mday | gettm.bcd_mon | gettm.bcd_year; - __raw_writel(val, rtc->rtc_reg + REG_RTC_CLR); - - val = gettm.bcd_sec | gettm.bcd_min | gettm.bcd_hour; - __raw_writel(val, rtc->rtc_reg + REG_RTC_TLR); - - return 0; -} - -static int nuc900_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm) -{ - struct nuc900_rtc *rtc = dev_get_drvdata(dev); - unsigned int timeval, carval; - - timeval = __raw_readl(rtc->rtc_reg + REG_RTC_TAR); - carval = __raw_readl(rtc->rtc_reg + REG_RTC_CAR); - - nuc900_rtc_bcd2bin(timeval, carval, &alrm->time); - - return rtc_valid_tm(&alrm->time); -} - -static int nuc900_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm) -{ - struct nuc900_rtc *rtc = dev_get_drvdata(dev); - struct nuc900_bcd_time tm; - unsigned long val; - int *err; - - nuc900_rtc_bin2bcd(dev, &alrm->time, &tm); - - err = check_rtc_access_enable(rtc); - if (IS_ERR(err)) - return PTR_ERR(err); - - val = tm.bcd_mday | tm.bcd_mon | tm.bcd_year; - __raw_writel(val, rtc->rtc_reg + REG_RTC_CAR); - - val = tm.bcd_sec | tm.bcd_min | tm.bcd_hour; - __raw_writel(val, rtc->rtc_reg + REG_RTC_TAR); - - return 0; -} - -static const struct rtc_class_ops nuc900_rtc_ops = { - .read_time = nuc900_rtc_read_time, - .set_time = nuc900_rtc_set_time, - .read_alarm = nuc900_rtc_read_alarm, - .set_alarm = nuc900_rtc_set_alarm, - .alarm_irq_enable = nuc900_alarm_irq_enable, -}; - -static int __init nuc900_rtc_probe(struct platform_device *pdev) -{ - struct resource *res; - struct nuc900_rtc *nuc900_rtc; - - nuc900_rtc = devm_kzalloc(&pdev->dev, sizeof(struct nuc900_rtc), - GFP_KERNEL); - if (!nuc900_rtc) - return -ENOMEM; - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - nuc900_rtc->rtc_reg = devm_ioremap_resource(&pdev->dev, res); - if (IS_ERR(nuc900_rtc->rtc_reg)) - return PTR_ERR(nuc900_rtc->rtc_reg); - - platform_set_drvdata(pdev, nuc900_rtc); - - nuc900_rtc->rtcdev = devm_rtc_device_register(&pdev->dev, pdev->name, - &nuc900_rtc_ops, THIS_MODULE); - if (IS_ERR(nuc900_rtc->rtcdev)) { - dev_err(&pdev->dev, "rtc device register failed\n"); - return PTR_ERR(nuc900_rtc->rtcdev); - } - - __raw_writel(__raw_readl(nuc900_rtc->rtc_reg + REG_RTC_TSSR) | MODE24, - nuc900_rtc->rtc_reg + REG_RTC_TSSR); - - nuc900_rtc->irq_num = platform_get_irq(pdev, 0); - if (devm_request_irq(&pdev->dev, nuc900_rtc->irq_num, - nuc900_rtc_interrupt, 0, "nuc900rtc", nuc900_rtc)) { - dev_err(&pdev->dev, "NUC900 RTC request irq failed\n"); - return -EBUSY; - } - - return 0; -} - -static struct platform_driver nuc900_rtc_driver = { - .driver = { - .name = "nuc900-rtc", - }, -}; - -module_platform_driver_probe(nuc900_rtc_driver, nuc900_rtc_probe); - -MODULE_AUTHOR("Wan ZongShun "); -MODULE_DESCRIPTION("nuc910/nuc920 RTC driver"); -MODULE_LICENSE("GPL"); -MODULE_ALIAS("platform:nuc900-rtc");