mirror of
https://github.com/joel16/android_kernel_sony_msm8994.git
synced 2024-11-24 20:50:30 +00:00
[MIPS] separate platform_device registration for VR41xx RTC
Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Yoichi Yuasa
Ralf Baechle
parent
44173fb2e8
commit
bd0765098b
@ -2,4 +2,4 @@
|
||||
# Makefile for common code of the NEC VR4100 series.
|
||||
#
|
||||
|
||||
obj-y += bcu.o cmu.o giu.o icu.o init.o irq.o pmu.o siu.o type.o
|
||||
obj-y += bcu.o cmu.o giu.o icu.o init.o irq.o pmu.o rtc.o siu.o type.o
|
||||
|
||||
117
arch/mips/vr41xx/common/rtc.c
Normal file
117
arch/mips/vr41xx/common/rtc.c
Normal file
@ -0,0 +1,117 @@
|
||||
/*
|
||||
* NEC VR4100 series RTC platform device.
|
||||
*
|
||||
* Copyright (C) 2007 Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
#include <linux/errno.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/ioport.h>
|
||||
#include <linux/platform_device.h>
|
||||
|
||||
#include <asm/cpu.h>
|
||||
#include <asm/vr41xx/irq.h>
|
||||
|
||||
static struct resource rtc_type1_resource[] __initdata = {
|
||||
{
|
||||
.start = 0x0b0000c0,
|
||||
.end = 0x0b0000df,
|
||||
.flags = IORESOURCE_MEM,
|
||||
},
|
||||
{
|
||||
.start = 0x0b0001c0,
|
||||
.end = 0x0b0001df,
|
||||
.flags = IORESOURCE_MEM,
|
||||
},
|
||||
{
|
||||
.start = ELAPSEDTIME_IRQ,
|
||||
.end = ELAPSEDTIME_IRQ,
|
||||
.flags = IORESOURCE_IRQ,
|
||||
},
|
||||
{
|
||||
.start = RTCLONG1_IRQ,
|
||||
.end = RTCLONG1_IRQ,
|
||||
.flags = IORESOURCE_IRQ,
|
||||
},
|
||||
};
|
||||
|
||||
static struct resource rtc_type2_resource[] __initdata = {
|
||||
{
|
||||
.start = 0x0f000100,
|
||||
.end = 0x0f00011f,
|
||||
.flags = IORESOURCE_MEM,
|
||||
},
|
||||
{
|
||||
.start = 0x0f000120,
|
||||
.end = 0x0f00013f,
|
||||
.flags = IORESOURCE_MEM,
|
||||
},
|
||||
{
|
||||
.start = ELAPSEDTIME_IRQ,
|
||||
.end = ELAPSEDTIME_IRQ,
|
||||
.flags = IORESOURCE_IRQ,
|
||||
},
|
||||
{
|
||||
.start = RTCLONG1_IRQ,
|
||||
.end = RTCLONG1_IRQ,
|
||||
.flags = IORESOURCE_IRQ,
|
||||
},
|
||||
};
|
||||
|
||||
static int __init vr41xx_rtc_add(void)
|
||||
{
|
||||
struct platform_device *pdev;
|
||||
struct resource *res;
|
||||
unsigned int num;
|
||||
int retval;
|
||||
|
||||
pdev = platform_device_alloc("RTC", -1);
|
||||
if (!pdev)
|
||||
return -ENOMEM;
|
||||
|
||||
switch (current_cpu_data.cputype) {
|
||||
case CPU_VR4111:
|
||||
case CPU_VR4121:
|
||||
res = rtc_type1_resource;
|
||||
num = ARRAY_SIZE(rtc_type1_resource);
|
||||
break;
|
||||
case CPU_VR4122:
|
||||
case CPU_VR4131:
|
||||
case CPU_VR4133:
|
||||
res = rtc_type2_resource;
|
||||
num = ARRAY_SIZE(rtc_type2_resource);
|
||||
break;
|
||||
default:
|
||||
retval = -ENODEV;
|
||||
goto err_free_device;
|
||||
}
|
||||
|
||||
retval = platform_device_add_resources(pdev, res, num);
|
||||
if (retval)
|
||||
goto err_free_device;
|
||||
|
||||
retval = platform_device_add(pdev);
|
||||
if (retval)
|
||||
goto err_free_device;
|
||||
|
||||
return 0;
|
||||
|
||||
err_free_device:
|
||||
platform_device_put(pdev);
|
||||
|
||||
return retval;
|
||||
}
|
||||
device_initcall(vr41xx_rtc_add);
|
||||
@ -17,10 +17,11 @@
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*/
|
||||
#include <linux/err.h>
|
||||
#include <linux/fs.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/ioport.h>
|
||||
#include <linux/irq.h>
|
||||
#include <linux/interrupt.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/platform_device.h>
|
||||
#include <linux/rtc.h>
|
||||
@ -30,25 +31,11 @@
|
||||
#include <asm/div64.h>
|
||||
#include <asm/io.h>
|
||||
#include <asm/uaccess.h>
|
||||
#include <asm/vr41xx/irq.h>
|
||||
|
||||
MODULE_AUTHOR("Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>");
|
||||
MODULE_DESCRIPTION("NEC VR4100 series RTC driver");
|
||||
MODULE_LICENSE("GPL");
|
||||
|
||||
#define RTC1_TYPE1_START 0x0b0000c0UL
|
||||
#define RTC1_TYPE1_END 0x0b0000dfUL
|
||||
#define RTC2_TYPE1_START 0x0b0001c0UL
|
||||
#define RTC2_TYPE1_END 0x0b0001dfUL
|
||||
|
||||
#define RTC1_TYPE2_START 0x0f000100UL
|
||||
#define RTC1_TYPE2_END 0x0f00011fUL
|
||||
#define RTC2_TYPE2_START 0x0f000120UL
|
||||
#define RTC2_TYPE2_END 0x0f00013fUL
|
||||
|
||||
#define RTC1_SIZE 0x20
|
||||
#define RTC2_SIZE 0x20
|
||||
|
||||
/* RTC 1 registers */
|
||||
#define ETIMELREG 0x00
|
||||
#define ETIMEMREG 0x02
|
||||
@ -98,13 +85,8 @@ static char rtc_name[] = "RTC";
|
||||
static unsigned long periodic_frequency;
|
||||
static unsigned long periodic_count;
|
||||
static unsigned int alarm_enabled;
|
||||
|
||||
struct resource rtc_resource[2] = {
|
||||
{ .name = rtc_name,
|
||||
.flags = IORESOURCE_MEM, },
|
||||
{ .name = rtc_name,
|
||||
.flags = IORESOURCE_MEM, },
|
||||
};
|
||||
static int aie_irq = -1;
|
||||
static int pie_irq = -1;
|
||||
|
||||
static inline unsigned long read_elapsed_second(void)
|
||||
{
|
||||
@ -150,8 +132,8 @@ static void vr41xx_rtc_release(struct device *dev)
|
||||
|
||||
spin_unlock_irq(&rtc_lock);
|
||||
|
||||
disable_irq(ELAPSEDTIME_IRQ);
|
||||
disable_irq(RTCLONG1_IRQ);
|
||||
disable_irq(aie_irq);
|
||||
disable_irq(pie_irq);
|
||||
}
|
||||
|
||||
static int vr41xx_rtc_read_time(struct device *dev, struct rtc_time *time)
|
||||
@ -209,14 +191,14 @@ static int vr41xx_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *wkalrm)
|
||||
spin_lock_irq(&rtc_lock);
|
||||
|
||||
if (alarm_enabled)
|
||||
disable_irq(ELAPSEDTIME_IRQ);
|
||||
disable_irq(aie_irq);
|
||||
|
||||
rtc1_write(ECMPLREG, (uint16_t)(alarm_sec << 15));
|
||||
rtc1_write(ECMPMREG, (uint16_t)(alarm_sec >> 1));
|
||||
rtc1_write(ECMPHREG, (uint16_t)(alarm_sec >> 17));
|
||||
|
||||
if (wkalrm->enabled)
|
||||
enable_irq(ELAPSEDTIME_IRQ);
|
||||
enable_irq(aie_irq);
|
||||
|
||||
alarm_enabled = wkalrm->enabled;
|
||||
|
||||
@ -234,7 +216,7 @@ static int vr41xx_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long
|
||||
spin_lock_irq(&rtc_lock);
|
||||
|
||||
if (!alarm_enabled) {
|
||||
enable_irq(ELAPSEDTIME_IRQ);
|
||||
enable_irq(aie_irq);
|
||||
alarm_enabled = 1;
|
||||
}
|
||||
|
||||
@ -244,17 +226,17 @@ static int vr41xx_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long
|
||||
spin_lock_irq(&rtc_lock);
|
||||
|
||||
if (alarm_enabled) {
|
||||
disable_irq(ELAPSEDTIME_IRQ);
|
||||
disable_irq(aie_irq);
|
||||
alarm_enabled = 0;
|
||||
}
|
||||
|
||||
spin_unlock_irq(&rtc_lock);
|
||||
break;
|
||||
case RTC_PIE_ON:
|
||||
enable_irq(RTCLONG1_IRQ);
|
||||
enable_irq(pie_irq);
|
||||
break;
|
||||
case RTC_PIE_OFF:
|
||||
disable_irq(RTCLONG1_IRQ);
|
||||
disable_irq(pie_irq);
|
||||
break;
|
||||
case RTC_IRQP_READ:
|
||||
return put_user(periodic_frequency, (unsigned long __user *)arg);
|
||||
@ -331,31 +313,37 @@ static const struct rtc_class_ops vr41xx_rtc_ops = {
|
||||
|
||||
static int __devinit rtc_probe(struct platform_device *pdev)
|
||||
{
|
||||
struct resource *res;
|
||||
struct rtc_device *rtc;
|
||||
unsigned int irq;
|
||||
int retval;
|
||||
|
||||
if (pdev->num_resources != 2)
|
||||
if (pdev->num_resources != 4)
|
||||
return -EBUSY;
|
||||
|
||||
rtc1_base = ioremap(pdev->resource[0].start, RTC1_SIZE);
|
||||
if (rtc1_base == NULL)
|
||||
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
|
||||
if (!res)
|
||||
return -EBUSY;
|
||||
|
||||
rtc2_base = ioremap(pdev->resource[1].start, RTC2_SIZE);
|
||||
if (rtc2_base == NULL) {
|
||||
iounmap(rtc1_base);
|
||||
rtc1_base = NULL;
|
||||
rtc1_base = ioremap(res->start, res->end - res->start + 1);
|
||||
if (!rtc1_base)
|
||||
return -EBUSY;
|
||||
|
||||
res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
|
||||
if (!res) {
|
||||
retval = -EBUSY;
|
||||
goto err_rtc1_iounmap;
|
||||
}
|
||||
|
||||
rtc2_base = ioremap(res->start, res->end - res->start + 1);
|
||||
if (!rtc2_base) {
|
||||
retval = -EBUSY;
|
||||
goto err_rtc1_iounmap;
|
||||
}
|
||||
|
||||
rtc = rtc_device_register(rtc_name, &pdev->dev, &vr41xx_rtc_ops, THIS_MODULE);
|
||||
if (IS_ERR(rtc)) {
|
||||
iounmap(rtc1_base);
|
||||
iounmap(rtc2_base);
|
||||
rtc1_base = NULL;
|
||||
rtc2_base = NULL;
|
||||
return PTR_ERR(rtc);
|
||||
retval = PTR_ERR(rtc);
|
||||
goto err_iounmap_all;
|
||||
}
|
||||
|
||||
spin_lock_irq(&rtc_lock);
|
||||
@ -368,35 +356,50 @@ static int __devinit rtc_probe(struct platform_device *pdev)
|
||||
|
||||
spin_unlock_irq(&rtc_lock);
|
||||
|
||||
irq = ELAPSEDTIME_IRQ;
|
||||
retval = request_irq(irq, elapsedtime_interrupt, IRQF_DISABLED,
|
||||
"elapsed_time", pdev);
|
||||
if (retval == 0) {
|
||||
irq = RTCLONG1_IRQ;
|
||||
retval = request_irq(irq, rtclong1_interrupt, IRQF_DISABLED,
|
||||
"rtclong1", pdev);
|
||||
aie_irq = platform_get_irq(pdev, 0);
|
||||
if (aie_irq < 0 || aie_irq >= NR_IRQS) {
|
||||
retval = -EBUSY;
|
||||
goto err_device_unregister;
|
||||
}
|
||||
|
||||
if (retval < 0) {
|
||||
printk(KERN_ERR "rtc: IRQ%d is busy\n", irq);
|
||||
rtc_device_unregister(rtc);
|
||||
if (irq == RTCLONG1_IRQ)
|
||||
free_irq(ELAPSEDTIME_IRQ, NULL);
|
||||
iounmap(rtc1_base);
|
||||
iounmap(rtc2_base);
|
||||
rtc1_base = NULL;
|
||||
rtc2_base = NULL;
|
||||
return retval;
|
||||
}
|
||||
retval = request_irq(aie_irq, elapsedtime_interrupt, IRQF_DISABLED,
|
||||
"elapsed_time", pdev);
|
||||
if (retval < 0)
|
||||
goto err_device_unregister;
|
||||
|
||||
pie_irq = platform_get_irq(pdev, 1);
|
||||
if (pie_irq < 0 || pie_irq >= NR_IRQS)
|
||||
goto err_free_irq;
|
||||
|
||||
retval = request_irq(pie_irq, rtclong1_interrupt, IRQF_DISABLED,
|
||||
"rtclong1", pdev);
|
||||
if (retval < 0)
|
||||
goto err_free_irq;
|
||||
|
||||
platform_set_drvdata(pdev, rtc);
|
||||
|
||||
disable_irq(ELAPSEDTIME_IRQ);
|
||||
disable_irq(RTCLONG1_IRQ);
|
||||
disable_irq(aie_irq);
|
||||
disable_irq(pie_irq);
|
||||
|
||||
printk(KERN_INFO "rtc: Real Time Clock of NEC VR4100 series\n");
|
||||
|
||||
return 0;
|
||||
|
||||
err_free_irq:
|
||||
free_irq(aie_irq, pdev);
|
||||
|
||||
err_device_unregister:
|
||||
rtc_device_unregister(rtc);
|
||||
|
||||
err_iounmap_all:
|
||||
iounmap(rtc2_base);
|
||||
rtc2_base = NULL;
|
||||
|
||||
err_rtc1_iounmap:
|
||||
iounmap(rtc1_base);
|
||||
rtc1_base = NULL;
|
||||
|
||||
return retval;
|
||||
}
|
||||
|
||||
static int __devexit rtc_remove(struct platform_device *pdev)
|
||||
@ -404,23 +407,21 @@ static int __devexit rtc_remove(struct platform_device *pdev)
|
||||
struct rtc_device *rtc;
|
||||
|
||||
rtc = platform_get_drvdata(pdev);
|
||||
if (rtc != NULL)
|
||||
if (rtc)
|
||||
rtc_device_unregister(rtc);
|
||||
|
||||
platform_set_drvdata(pdev, NULL);
|
||||
|
||||
free_irq(ELAPSEDTIME_IRQ, NULL);
|
||||
free_irq(RTCLONG1_IRQ, NULL);
|
||||
if (rtc1_base != NULL)
|
||||
free_irq(aie_irq, pdev);
|
||||
free_irq(pie_irq, pdev);
|
||||
if (rtc1_base)
|
||||
iounmap(rtc1_base);
|
||||
if (rtc2_base != NULL)
|
||||
if (rtc2_base)
|
||||
iounmap(rtc2_base);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct platform_device *rtc_platform_device;
|
||||
|
||||
static struct platform_driver rtc_platform_driver = {
|
||||
.probe = rtc_probe,
|
||||
.remove = __devexit_p(rtc_remove),
|
||||
@ -432,55 +433,12 @@ static struct platform_driver rtc_platform_driver = {
|
||||
|
||||
static int __init vr41xx_rtc_init(void)
|
||||
{
|
||||
int retval;
|
||||
|
||||
switch (current_cpu_data.cputype) {
|
||||
case CPU_VR4111:
|
||||
case CPU_VR4121:
|
||||
rtc_resource[0].start = RTC1_TYPE1_START;
|
||||
rtc_resource[0].end = RTC1_TYPE1_END;
|
||||
rtc_resource[1].start = RTC2_TYPE1_START;
|
||||
rtc_resource[1].end = RTC2_TYPE1_END;
|
||||
break;
|
||||
case CPU_VR4122:
|
||||
case CPU_VR4131:
|
||||
case CPU_VR4133:
|
||||
rtc_resource[0].start = RTC1_TYPE2_START;
|
||||
rtc_resource[0].end = RTC1_TYPE2_END;
|
||||
rtc_resource[1].start = RTC2_TYPE2_START;
|
||||
rtc_resource[1].end = RTC2_TYPE2_END;
|
||||
break;
|
||||
default:
|
||||
return -ENODEV;
|
||||
break;
|
||||
}
|
||||
|
||||
rtc_platform_device = platform_device_alloc("RTC", -1);
|
||||
if (rtc_platform_device == NULL)
|
||||
return -ENOMEM;
|
||||
|
||||
retval = platform_device_add_resources(rtc_platform_device,
|
||||
rtc_resource, ARRAY_SIZE(rtc_resource));
|
||||
|
||||
if (retval == 0)
|
||||
retval = platform_device_add(rtc_platform_device);
|
||||
|
||||
if (retval < 0) {
|
||||
platform_device_put(rtc_platform_device);
|
||||
return retval;
|
||||
}
|
||||
|
||||
retval = platform_driver_register(&rtc_platform_driver);
|
||||
if (retval < 0)
|
||||
platform_device_unregister(rtc_platform_device);
|
||||
|
||||
return retval;
|
||||
return platform_driver_register(&rtc_platform_driver);
|
||||
}
|
||||
|
||||
static void __exit vr41xx_rtc_exit(void)
|
||||
{
|
||||
platform_driver_unregister(&rtc_platform_driver);
|
||||
platform_device_unregister(rtc_platform_device);
|
||||
}
|
||||
|
||||
module_init(vr41xx_rtc_init);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user