[PATCH 3/9] rtc: pcf50633: Remove

linux
2025-03-09T19:36:43Z

The pcf50633 was used as part of the OpenMoko devices but
the support for its main chip was recently removed in:
commit 61b7f8920b17 ("ARM: s3c: remove all s3c24xx support")

See https://lore.kernel.org/all/Z8z236h4B5A6Ki3D@gallifrey/

Remove it.

Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
---
drivers/mfd/pcf50633-core.c | 2 -
drivers/rtc/Kconfig | 7 -
drivers/rtc/Makefile | 1 -
drivers/rtc/rtc-pcf50633.c | 284 ------------------------------
include/linux/mfd/pcf50633/core.h | 1 -
5 files changed, 295 deletions(-)
delete mode 100644 drivers/rtc/rtc-pcf50633.c

diff --git a/drivers/mfd/pcf50633-core.c b/drivers/mfd/pcf50633-core.c
index 08aa68ef2fbc..d991a77f6dd2 100644
--- a/drivers/mfd/pcf50633-core.c
+++ b/drivers/mfd/pcf50633-core.c
@@ -208,7 +208,6 @@ static int pcf50633_probe(struct i2c_client *client)

/* Create sub devices */
pcf50633_client_dev_register(pcf, "pcf50633-input", &pcf->input_pdev);
- pcf50633_client_dev_register(pcf, "pcf50633-rtc", &pcf->rtc_pdev);
pcf50633_client_dev_register(pcf, "pcf50633-mbc", &pcf->mbc_pdev);

@@ -259,7 +258,6 @@ static void pcf50633_remove(struct i2c_client *client)
pcf50633_irq_free(pcf);

platform_device_unregister(pcf->input_pdev);
- platform_device_unregister(pcf->rtc_pdev);
platform_device_unregister(pcf->mbc_pdev);

for (i = 0; i < PCF50633_NUM_REGULATORS; i++)
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 0bbbf778ecfa..838bdc138ffe 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -1321,13 +1321,6 @@ config RTC_DRV_SPEAR
If you say Y here you will get support for the RTC found on
spear

-config RTC_DRV_PCF50633
- depends on MFD_PCF50633
- tristate "NXP PCF50633 RTC"
- help
- If you say yes here you get support for the RTC subsystem of the
- NXP PCF50633 used in embedded systems.
-
config RTC_DRV_AB8500
tristate "ST-Ericsson AB8500 RTC"
depends on AB8500_CORE
diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile
index 489b4ab07068..31473b3276d9 100644
--- a/drivers/rtc/Makefile
+++ b/drivers/rtc/Makefile
@@ -126,7 +126,6 @@ obj-$(CONFIG_RTC_DRV_PALMAS) += rtc-palmas.o
obj-$(CONFIG_RTC_DRV_PCAP) += rtc-pcap.o
obj-$(CONFIG_RTC_DRV_PCF2123) += rtc-pcf2123.o
obj-$(CONFIG_RTC_DRV_PCF2127) += rtc-pcf2127.o
-obj-$(CONFIG_RTC_DRV_PCF50633) += rtc-pcf50633.o
obj-$(CONFIG_RTC_DRV_PCF85063) += rtc-pcf85063.o
obj-$(CONFIG_RTC_DRV_PCF8523) += rtc-pcf8523.o
obj-$(CONFIG_RTC_DRV_PCF85363) += rtc-pcf85363.o
diff --git a/drivers/rtc/rtc-pcf50633.c b/drivers/rtc/rtc-pcf50633.c
deleted file mode 100644
index c019c4d91c7d..000000000000
--- a/drivers/rtc/rtc-pcf50633.c
+++ /dev/null
@@ -1,284 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/* NXP PCF50633 RTC Driver
- *
- * (C) 2006-2008 by Openmoko, Inc.
- * Author: Balaji Rao <balajirrao@openmoko.org>
- * All rights reserved.
- *
- * Broken down from monstrous PCF50633 driver mainly by
- * Harald Welte, Andy Green and Werner Almesberger
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/device.h>
-#include <linux/slab.h>
-#include <linux/platform_device.h>
-#include <linux/rtc.h>
-#include <linux/bcd.h>
-#include <linux/err.h>
-
-#include <linux/mfd/pcf50633/core.h>
-
-#define PCF50633_REG_RTCSC 0x59 /* Second */
-#define PCF50633_REG_RTCMN 0x5a /* Minute */
-#define PCF50633_REG_RTCHR 0x5b /* Hour */
-#define PCF50633_REG_RTCWD 0x5c /* Weekday */
-#define PCF50633_REG_RTCDT 0x5d /* Day */
-#define PCF50633_REG_RTCMT 0x5e /* Month */
-#define PCF50633_REG_RTCYR 0x5f /* Year */
-#define PCF50633_REG_RTCSCA 0x60 /* Alarm Second */
-#define PCF50633_REG_RTCMNA 0x61 /* Alarm Minute */
-#define PCF50633_REG_RTCHRA 0x62 /* Alarm Hour */
-#define PCF50633_REG_RTCWDA 0x63 /* Alarm Weekday */
-#define PCF50633_REG_RTCDTA 0x64 /* Alarm Day */
-#define PCF50633_REG_RTCMTA 0x65 /* Alarm Month */
-#define PCF50633_REG_RTCYRA 0x66 /* Alarm Year */
-
-enum pcf50633_time_indexes {
- PCF50633_TI_SEC,
- PCF50633_TI_MIN,
- PCF50633_TI_HOUR,
- PCF50633_TI_WKDAY,
- PCF50633_TI_DAY,
- PCF50633_TI_MONTH,
- PCF50633_TI_YEAR,
- PCF50633_TI_EXTENT /* always last */
-};
-
-struct pcf50633_time {
- u_int8_t time[PCF50633_TI_EXTENT];
-};
-
-struct pcf50633_rtc {
- int alarm_enabled;
- int alarm_pending;
-
- struct pcf50633 *pcf;
- struct rtc_device *rtc_dev;
-};
-
-static void pcf2rtc_time(struct rtc_time *rtc, struct pcf50633_time *pcf)
-{
- rtc->tm_sec = bcd2bin(pcf->time[PCF50633_TI_SEC]);
- rtc->tm_min = bcd2bin(pcf->time[PCF50633_TI_MIN]);
- rtc->tm_hour = bcd2bin(pcf->time[PCF50633_TI_HOUR]);
- rtc->tm_wday = bcd2bin(pcf->time[PCF50633_TI_WKDAY]);
- rtc->tm_mday = bcd2bin(pcf->time[PCF50633_TI_DAY]);
- rtc->tm_mon = bcd2bin(pcf->time[PCF50633_TI_MONTH]) - 1;
- rtc->tm_year = bcd2bin(pcf->time[PCF50633_TI_YEAR]) + 100;
-}
-
-static void rtc2pcf_time(struct pcf50633_time *pcf, struct rtc_time *rtc)
-{
- pcf->time[PCF50633_TI_SEC] = bin2bcd(rtc->tm_sec);
- pcf->time[PCF50633_TI_MIN] = bin2bcd(rtc->tm_min);
- pcf->time[PCF50633_TI_HOUR] = bin2bcd(rtc->tm_hour);
- pcf->time[PCF50633_TI_WKDAY] = bin2bcd(rtc->tm_wday);
- pcf->time[PCF50633_TI_DAY] = bin2bcd(rtc->tm_mday);
- pcf->time[PCF50633_TI_MONTH] = bin2bcd(rtc->tm_mon + 1);
- pcf->time[PCF50633_TI_YEAR] = bin2bcd(rtc->tm_year % 100);
-}
-
-static int
-pcf50633_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled)
-{
- struct pcf50633_rtc *rtc = dev_get_drvdata(dev);
- int err;
-
- if (enabled)
- err = pcf50633_irq_unmask(rtc->pcf, PCF50633_IRQ_ALARM);
- else
- err = pcf50633_irq_mask(rtc->pcf, PCF50633_IRQ_ALARM);
-
- if (err < 0)
- return err;
-
- rtc->alarm_enabled = enabled;
-
- return 0;
-}
-
-static int pcf50633_rtc_read_time(struct device *dev, struct rtc_time *tm)
-{
- struct pcf50633_rtc *rtc;
- struct pcf50633_time pcf_tm;
- int ret;
-
- rtc = dev_get_drvdata(dev);
-
- ret = pcf50633_read_block(rtc->pcf, PCF50633_REG_RTCSC,
- PCF50633_TI_EXTENT,
- &pcf_tm.time[0]);
- if (ret != PCF50633_TI_EXTENT) {
- dev_err(dev, "Failed to read time\n");
- return -EIO;
- }
-
- dev_dbg(dev, "PCF_TIME: %02x.%02x.%02x %02x:%02x:%02x\n",
- pcf_tm.time[PCF50633_TI_DAY],
- pcf_tm.time[PCF50633_TI_MONTH],
- pcf_tm.time[PCF50633_TI_YEAR],
- pcf_tm.time[PCF50633_TI_HOUR],
- pcf_tm.time[PCF50633_TI_MIN],
- pcf_tm.time[PCF50633_TI_SEC]);
-
- pcf2rtc_time(tm, &pcf_tm);
-
- dev_dbg(dev, "RTC_TIME: %ptRr\n", tm);
-
- return 0;
-}
-
-static int pcf50633_rtc_set_time(struct device *dev, struct rtc_time *tm)
-{
- struct pcf50633_rtc *rtc;
- struct pcf50633_time pcf_tm;
- int alarm_masked, ret = 0;
-
- rtc = dev_get_drvdata(dev);
-
- dev_dbg(dev, "RTC_TIME: %ptRr\n", tm);
-
- rtc2pcf_time(&pcf_tm, tm);
-
- dev_dbg(dev, "PCF_TIME: %02x.%02x.%02x %02x:%02x:%02x\n",
- pcf_tm.time[PCF50633_TI_DAY],
- pcf_tm.time[PCF50633_TI_MONTH],
- pcf_tm.time[PCF50633_TI_YEAR],
- pcf_tm.time[PCF50633_TI_HOUR],
- pcf_tm.time[PCF50633_TI_MIN],
- pcf_tm.time[PCF50633_TI_SEC]);
-
-
- alarm_masked = pcf50633_irq_mask_get(rtc->pcf, PCF50633_IRQ_ALARM);
-
- if (!alarm_masked)
- pcf50633_irq_mask(rtc->pcf, PCF50633_IRQ_ALARM);
-
- /* Returns 0 on success */
- ret = pcf50633_write_block(rtc->pcf, PCF50633_REG_RTCSC,
- PCF50633_TI_EXTENT,
- &pcf_tm.time[0]);
-
- if (!alarm_masked)
- pcf50633_irq_unmask(rtc->pcf, PCF50633_IRQ_ALARM);
-
- return ret;
-}
-
-static int pcf50633_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
-{
- struct pcf50633_rtc *rtc;
- struct pcf50633_time pcf_tm;
- int ret = 0;
-
- rtc = dev_get_drvdata(dev);
-
- alrm->enabled = rtc->alarm_enabled;
- alrm->pending = rtc->alarm_pending;
-
- ret = pcf50633_read_block(rtc->pcf, PCF50633_REG_RTCSCA,
- PCF50633_TI_EXTENT, &pcf_tm.time[0]);
- if (ret != PCF50633_TI_EXTENT) {
- dev_err(dev, "Failed to read time\n");
- return -EIO;
- }
-
- pcf2rtc_time(&alrm->time, &pcf_tm);
-
- return rtc_valid_tm(&alrm->time);
-}
-
-static int pcf50633_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
-{
- struct pcf50633_rtc *rtc;
- struct pcf50633_time pcf_tm;
- int alarm_masked, ret = 0;
-
- rtc = dev_get_drvdata(dev);
-
- rtc2pcf_time(&pcf_tm, &alrm->time);
-
- /* do like mktime does and ignore tm_wday */
- pcf_tm.time[PCF50633_TI_WKDAY] = 7;
-
- alarm_masked = pcf50633_irq_mask_get(rtc->pcf, PCF50633_IRQ_ALARM);
-
- /* disable alarm interrupt */
- if (!alarm_masked)
- pcf50633_irq_mask(rtc->pcf, PCF50633_IRQ_ALARM);
-
- /* Returns 0 on success */
- ret = pcf50633_write_block(rtc->pcf, PCF50633_REG_RTCSCA,
- PCF50633_TI_EXTENT, &pcf_tm.time[0]);
- if (!alrm->enabled)
- rtc->alarm_pending = 0;
-
- if (!alarm_masked || alrm->enabled)
- pcf50633_irq_unmask(rtc->pcf, PCF50633_IRQ_ALARM);
- rtc->alarm_enabled = alrm->enabled;
-
- return ret;
-}
-
-static const struct rtc_class_ops pcf50633_rtc_ops = {
- .read_time = pcf50633_rtc_read_time,
- .set_time = pcf50633_rtc_set_time,
- .read_alarm = pcf50633_rtc_read_alarm,
- .set_alarm = pcf50633_rtc_set_alarm,
- .alarm_irq_enable = pcf50633_rtc_alarm_irq_enable,
-};
-
-static void pcf50633_rtc_irq(int irq, void *data)
-{
- struct pcf50633_rtc *rtc = data;
-
- rtc_update_irq(rtc->rtc_dev, 1, RTC_AF | RTC_IRQF);
- rtc->alarm_pending = 1;
-}
-
-static int pcf50633_rtc_probe(struct platform_device *pdev)
-{
- struct pcf50633_rtc *rtc;
-
- rtc = devm_kzalloc(&pdev->dev, sizeof(*rtc), GFP_KERNEL);
- if (!rtc)
- return -ENOMEM;
-
- rtc->pcf = dev_to_pcf50633(pdev->dev.parent);
- platform_set_drvdata(pdev, rtc);
- rtc->rtc_dev = devm_rtc_device_register(&pdev->dev, "pcf50633-rtc",
- &pcf50633_rtc_ops, THIS_MODULE);
-
- if (IS_ERR(rtc->rtc_dev))
- return PTR_ERR(rtc->rtc_dev);
-
- pcf50633_register_irq(rtc->pcf, PCF50633_IRQ_ALARM,
- pcf50633_rtc_irq, rtc);
- return 0;
-}
-
-static void pcf50633_rtc_remove(struct platform_device *pdev)
-{
- struct pcf50633_rtc *rtc;
-
- rtc = platform_get_drvdata(pdev);
- pcf50633_free_irq(rtc->pcf, PCF50633_IRQ_ALARM);
-}
-
-static struct platform_driver pcf50633_rtc_driver = {
- .driver = {
- .name = "pcf50633-rtc",
- },
- .probe = pcf50633_rtc_probe,
- .remove = pcf50633_rtc_remove,
-};
-
-module_platform_driver(pcf50633_rtc_driver);
-
-MODULE_DESCRIPTION("PCF50633 RTC driver");
-MODULE_AUTHOR("Balaji Rao <balajirrao@openmoko.org>");
-MODULE_LICENSE("GPL");
-
diff --git a/include/linux/mfd/pcf50633/core.h b/include/linux/mfd/pcf50633/core.h
index 42e0412fa98f..f5ab3e64c230 100644
--- a/include/linux/mfd/pcf50633/core.h
+++ b/include/linux/mfd/pcf50633/core.h
@@ -146,7 +146,6 @@ struct pcf50633 {

int onkey1s_held;

- struct platform_device *rtc_pdev;
struct platform_device *mbc_pdev;
struct platform_device *input_pdev;
struct platform_device *regulator_pdev[PCF50633_NUM_REGULATORS];
--
2.48.1