From nobody Mon Jun 8 17:38:04 2026 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C8CF838AC9A; Wed, 27 May 2026 19:39:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779910774; cv=none; b=HWZEMn8v0+pZnBKBK2QAeOIAAHmievfkmlu2iWdhcuJl+8/lMb0zyROu/oWyz7C4JeiuivAYMh/V5FoHLaACTHayVAKqXs5aSOFXq2nfVWlY7zj+3D2WbttLKBWJtgGwldE4a3piVa1/wpeuZsgNycycw92qAtMq8ceIQjniCWA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779910774; c=relaxed/simple; bh=0PPLfjzQ8iVa/B67gDX8WmmXwgsIRB8Otg+Gy7CkuhU=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=VxtVHmEz1Qk9waaEXEyhK79QYW1D2USIoVsOu//k1fk41qTaDbHqnHB+e9oziANUdLPhLv97WD7IaZfpji8P/crwmv6OMOPcaxucI8lRNDmNv4WZVS3Z9N2wGbeCyoFZ8YwNm3FKs/ZsjLg29b99IrW8jQFKm13GlwRuiduO8t8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=SfCMpCWa; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="SfCMpCWa" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B10CF1F000E9; Wed, 27 May 2026 19:39:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1779910771; bh=GALH5MBhn3i1yuFtT7lQ/Z41yxmFA83B+Cm0aqZttnE=; h=From:To:Cc:Subject:Date; b=SfCMpCWa2IsxE8RVZKXqZbJ4wXLd+xQgSVq9jwM1Tcls6xcEYbMlJzlRnXydMBJsc dMs6o0ELNctDB3mWvPx+fMExl3UQ1epeQaQfuEDgbArHg1JIOm27ct76rhgSyFH/Cs PdPPFAjWqPt4jgf2NqAN3mkgWIPXo6+QWokzqcogdF9wp0b5xavJHbdiiqqh8KKgdf 05V06fCo6EPNsxuSVFMIv0HgBG//uACnu9N3N1Y0foRPDLwGePhpe36AXlSrmLBx8i /+Y9rFFT1zdseV/wUJRKBxpx+yVMP5XVDd7iagMN19V9VZ2nF22jpwzZoO1Onx5WJ3 9fKFUHUKp4u8Q== From: Arnd Bergmann To: Alexandre Belloni Cc: Arnd Bergmann , Lee Jones , linux-kernel@vger.kernel.org, linux-rtc@vger.kernel.org Subject: [PATCH] rtc: remove unused pcap driver Date: Wed, 27 May 2026 21:39:03 +0200 Message-Id: <20260527193927.3523952-1-arnd@kernel.org> X-Mailer: git-send-email 2.39.5 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Arnd Bergmann The platform was removed a few years ago, and the mfd driver is also gone now, so it is impossible to build or use it. Signed-off-by: Arnd Bergmann --- drivers/rtc/Kconfig | 7 -- drivers/rtc/Makefile | 1 - drivers/rtc/rtc-pcap.c | 179 ----------------------------------------- 3 files changed, 187 deletions(-) delete mode 100644 drivers/rtc/rtc-pcap.c diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig index 364afc73f8ab..01def8231873 100644 --- a/drivers/rtc/Kconfig +++ b/drivers/rtc/Kconfig @@ -1763,13 +1763,6 @@ config RTC_DRV_STMP This driver can also be built as a module. If so, the module will be called rtc-stmp3xxx. =20 -config RTC_DRV_PCAP - tristate "PCAP RTC" - depends on EZX_PCAP - help - If you say Y here you will get support for the RTC found on - the PCAP2 ASIC used on some Motorola phones. - config RTC_DRV_MC13XXX depends on MFD_MC13XXX tristate "Freescale MC13xxx RTC" diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile index 6cf7e066314e..0347645b021f 100644 --- a/drivers/rtc/Makefile +++ b/drivers/rtc/Makefile @@ -128,7 +128,6 @@ obj-$(CONFIG_RTC_DRV_OMAP) +=3D rtc-omap.o obj-$(CONFIG_RTC_DRV_OPAL) +=3D rtc-opal.o obj-$(CONFIG_RTC_DRV_OPTEE) +=3D rtc-optee.o obj-$(CONFIG_RTC_DRV_PALMAS) +=3D rtc-palmas.o -obj-$(CONFIG_RTC_DRV_PCAP) +=3D rtc-pcap.o obj-$(CONFIG_RTC_DRV_PCF2123) +=3D rtc-pcf2123.o obj-$(CONFIG_RTC_DRV_PCF2127) +=3D rtc-pcf2127.o obj-$(CONFIG_RTC_DRV_PCF85063) +=3D rtc-pcf85063.o diff --git a/drivers/rtc/rtc-pcap.c b/drivers/rtc/rtc-pcap.c deleted file mode 100644 index d6651611a0c6..000000000000 --- a/drivers/rtc/rtc-pcap.c +++ /dev/null @@ -1,179 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * pcap rtc code for Motorola EZX phones - * - * Copyright (c) 2008 guiming zhuo - * Copyright (c) 2009 Daniel Ribeiro - * - * Based on Motorola's rtc.c Copyright (c) 2003-2005 Motorola - */ - -#include -#include -#include -#include -#include -#include -#include - -struct pcap_rtc { - struct pcap_chip *pcap; - struct rtc_device *rtc; -}; - -static irqreturn_t pcap_rtc_irq(int irq, void *_pcap_rtc) -{ - struct pcap_rtc *pcap_rtc =3D _pcap_rtc; - unsigned long rtc_events; - - if (irq =3D=3D pcap_to_irq(pcap_rtc->pcap, PCAP_IRQ_1HZ)) - rtc_events =3D RTC_IRQF | RTC_UF; - else if (irq =3D=3D pcap_to_irq(pcap_rtc->pcap, PCAP_IRQ_TODA)) - rtc_events =3D RTC_IRQF | RTC_AF; - else - rtc_events =3D 0; - - rtc_update_irq(pcap_rtc->rtc, 1, rtc_events); - return IRQ_HANDLED; -} - -static int pcap_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm) -{ - struct pcap_rtc *pcap_rtc =3D dev_get_drvdata(dev); - struct rtc_time *tm =3D &alrm->time; - unsigned long secs; - u32 tod; /* time of day, seconds since midnight */ - u32 days; /* days since 1/1/1970 */ - - ezx_pcap_read(pcap_rtc->pcap, PCAP_REG_RTC_TODA, &tod); - secs =3D tod & PCAP_RTC_TOD_MASK; - - ezx_pcap_read(pcap_rtc->pcap, PCAP_REG_RTC_DAYA, &days); - secs +=3D (days & PCAP_RTC_DAY_MASK) * SEC_PER_DAY; - - rtc_time64_to_tm(secs, tm); - - return 0; -} - -static int pcap_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm) -{ - struct pcap_rtc *pcap_rtc =3D dev_get_drvdata(dev); - unsigned long secs =3D rtc_tm_to_time64(&alrm->time); - u32 tod, days; - - tod =3D secs % SEC_PER_DAY; - ezx_pcap_write(pcap_rtc->pcap, PCAP_REG_RTC_TODA, tod); - - days =3D secs / SEC_PER_DAY; - ezx_pcap_write(pcap_rtc->pcap, PCAP_REG_RTC_DAYA, days); - - return 0; -} - -static int pcap_rtc_read_time(struct device *dev, struct rtc_time *tm) -{ - struct pcap_rtc *pcap_rtc =3D dev_get_drvdata(dev); - unsigned long secs; - u32 tod, days; - - ezx_pcap_read(pcap_rtc->pcap, PCAP_REG_RTC_TOD, &tod); - secs =3D tod & PCAP_RTC_TOD_MASK; - - ezx_pcap_read(pcap_rtc->pcap, PCAP_REG_RTC_DAY, &days); - secs +=3D (days & PCAP_RTC_DAY_MASK) * SEC_PER_DAY; - - rtc_time64_to_tm(secs, tm); - - return 0; -} - -static int pcap_rtc_set_time(struct device *dev, struct rtc_time *tm) -{ - struct pcap_rtc *pcap_rtc =3D dev_get_drvdata(dev); - unsigned long secs =3D rtc_tm_to_time64(tm); - u32 tod, days; - - tod =3D secs % SEC_PER_DAY; - ezx_pcap_write(pcap_rtc->pcap, PCAP_REG_RTC_TOD, tod); - - days =3D secs / SEC_PER_DAY; - ezx_pcap_write(pcap_rtc->pcap, PCAP_REG_RTC_DAY, days); - - return 0; -} - -static int pcap_rtc_irq_enable(struct device *dev, int pirq, unsigned int = en) -{ - struct pcap_rtc *pcap_rtc =3D dev_get_drvdata(dev); - - if (en) - enable_irq(pcap_to_irq(pcap_rtc->pcap, pirq)); - else - disable_irq(pcap_to_irq(pcap_rtc->pcap, pirq)); - - return 0; -} - -static int pcap_rtc_alarm_irq_enable(struct device *dev, unsigned int en) -{ - return pcap_rtc_irq_enable(dev, PCAP_IRQ_TODA, en); -} - -static const struct rtc_class_ops pcap_rtc_ops =3D { - .read_time =3D pcap_rtc_read_time, - .set_time =3D pcap_rtc_set_time, - .read_alarm =3D pcap_rtc_read_alarm, - .set_alarm =3D pcap_rtc_set_alarm, - .alarm_irq_enable =3D pcap_rtc_alarm_irq_enable, -}; - -static int __init pcap_rtc_probe(struct platform_device *pdev) -{ - struct pcap_rtc *pcap_rtc; - int timer_irq, alarm_irq; - int err =3D -ENOMEM; - - pcap_rtc =3D devm_kzalloc(&pdev->dev, sizeof(struct pcap_rtc), - GFP_KERNEL); - if (!pcap_rtc) - return err; - - pcap_rtc->pcap =3D dev_get_drvdata(pdev->dev.parent); - - platform_set_drvdata(pdev, pcap_rtc); - - pcap_rtc->rtc =3D devm_rtc_allocate_device(&pdev->dev); - if (IS_ERR(pcap_rtc->rtc)) - return PTR_ERR(pcap_rtc->rtc); - - pcap_rtc->rtc->ops =3D &pcap_rtc_ops; - pcap_rtc->rtc->range_max =3D (1 << 14) * 86400ULL - 1; - - timer_irq =3D pcap_to_irq(pcap_rtc->pcap, PCAP_IRQ_1HZ); - alarm_irq =3D pcap_to_irq(pcap_rtc->pcap, PCAP_IRQ_TODA); - - err =3D devm_request_irq(&pdev->dev, timer_irq, pcap_rtc_irq, 0, - "RTC Timer", pcap_rtc); - if (err) - return err; - - err =3D devm_request_irq(&pdev->dev, alarm_irq, pcap_rtc_irq, 0, - "RTC Alarm", pcap_rtc); - if (err) - return err; - - return devm_rtc_register_device(pcap_rtc->rtc); -} - -static struct platform_driver pcap_rtc_driver =3D { - .driver =3D { - .name =3D "pcap-rtc", - }, -}; - -module_platform_driver_probe(pcap_rtc_driver, pcap_rtc_probe); - -MODULE_DESCRIPTION("Motorola pcap rtc driver"); -MODULE_AUTHOR("guiming zhuo "); -MODULE_LICENSE("GPL"); --=20 2.39.5