github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-07-28 10:09:10 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

rtc: remove unused pcap driver

Browse Source 
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 <arnd@arndb.de>
Link: https://patch.msgid.link/20260527193927.3523952-1-arnd@kernel.org
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
This commit is contained in:
Arnd Bergmann 2026-05-27 21:39:03 +02:00 committed by Alexandre Belloni
parent 947d7ea6f6
commit a50b23a57f
3 changed files with 0 additions and 187 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/rtc/Kconfig
View File

@ -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.
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"

1
drivers/rtc/Makefile
View File

@ -128,7 +128,6 @@ obj-$(CONFIG_RTC_DRV_OMAP) += rtc-omap.o
obj-$(CONFIG_RTC_DRV_OPAL) += rtc-opal.o
obj-$(CONFIG_RTC_DRV_OPTEE) += rtc-optee.o
obj-$(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_PCF85063) += rtc-pcf85063.o

179
drivers/rtc/rtc-pcap.c
View File

@ -1,179 +0,0 @@
// SPDX-License-Identifier: GPL-2.0
/*
* pcap rtc code for Motorola EZX phones
*
* Copyright (c) 2008 guiming zhuo <gmzhuo@gmail.com>
* Copyright (c) 2009 Daniel Ribeiro <drwyrm@gmail.com>
*
* Based on Motorola's rtc.c Copyright (c) 2003-2005 Motorola
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/mfd/ezx-pcap.h>
#include <linux/rtc.h>
#include <linux/slab.h>
#include <linux/platform_device.h>
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 = _pcap_rtc;
unsigned long rtc_events;
if (irq == pcap_to_irq(pcap_rtc->pcap, PCAP_IRQ_1HZ))
rtc_events = RTC_IRQF | RTC_UF;
else if (irq == pcap_to_irq(pcap_rtc->pcap, PCAP_IRQ_TODA))
rtc_events = RTC_IRQF | RTC_AF;
else
rtc_events = 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 = dev_get_drvdata(dev);
struct rtc_time *tm = &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 = tod & PCAP_RTC_TOD_MASK;
ezx_pcap_read(pcap_rtc->pcap, PCAP_REG_RTC_DAYA, &days);
secs += (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 = dev_get_drvdata(dev);
unsigned long secs = rtc_tm_to_time64(&alrm->time);
u32 tod, days;
tod = secs % SEC_PER_DAY;
ezx_pcap_write(pcap_rtc->pcap, PCAP_REG_RTC_TODA, tod);
days = 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 = dev_get_drvdata(dev);
unsigned long secs;
u32 tod, days;
ezx_pcap_read(pcap_rtc->pcap, PCAP_REG_RTC_TOD, &tod);
secs = tod & PCAP_RTC_TOD_MASK;
ezx_pcap_read(pcap_rtc->pcap, PCAP_REG_RTC_DAY, &days);
secs += (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 = dev_get_drvdata(dev);
unsigned long secs = rtc_tm_to_time64(tm);
u32 tod, days;
tod = secs % SEC_PER_DAY;
ezx_pcap_write(pcap_rtc->pcap, PCAP_REG_RTC_TOD, tod);
days = 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 = 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 = {
.read_time = pcap_rtc_read_time,
.set_time = pcap_rtc_set_time,
.read_alarm = pcap_rtc_read_alarm,
.set_alarm = pcap_rtc_set_alarm,
.alarm_irq_enable = 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 = -ENOMEM;
pcap_rtc = devm_kzalloc(&pdev->dev, sizeof(struct pcap_rtc),
GFP_KERNEL);
if (!pcap_rtc)
return err;
pcap_rtc->pcap = dev_get_drvdata(pdev->dev.parent);
platform_set_drvdata(pdev, pcap_rtc);
pcap_rtc->rtc = devm_rtc_allocate_device(&pdev->dev);
if (IS_ERR(pcap_rtc->rtc))
return PTR_ERR(pcap_rtc->rtc);
pcap_rtc->rtc->ops = &pcap_rtc_ops;
pcap_rtc->rtc->range_max = (1 << 14) * 86400ULL - 1;
timer_irq = pcap_to_irq(pcap_rtc->pcap, PCAP_IRQ_1HZ);
alarm_irq = pcap_to_irq(pcap_rtc->pcap, PCAP_IRQ_TODA);
err = devm_request_irq(&pdev->dev, timer_irq, pcap_rtc_irq, 0,
"RTC Timer", pcap_rtc);
if (err)
return err;
err = 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 = {
.driver = {
.name = "pcap-rtc",
},
};
module_platform_driver_probe(pcap_rtc_driver, pcap_rtc_probe);
MODULE_DESCRIPTION("Motorola pcap rtc driver");
MODULE_AUTHOR("guiming zhuo <gmzhuo@gmail.com>");
MODULE_LICENSE("GPL");