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rtc: gemini/ftrtc010: rename driver and symbols 

The Gemini RTC is actually a generic IP block from Faraday
Technology names FTRTC010. Rename the driver file and all
symbols to match this IP name.

The relationship can be clearly seen in the U-Boot driver
posted by Po-Yu Chuang for the Faraday A320 board:
https://lists.denx.de/pipermail/u-boot/2009-September/061326.html

Remove the dependency on ARCH_GEMINI but select the driver
for ARCH_GEMINI so we get a smooth transition. The IP block
is synthsized on different silicon and architectures.

Cc: Po-Yu Chuang <ratbert@faraday-tech.com>
Acked-by: Hans Ulli Kroll <ulli.kroll@googlemail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
zero-colors
Linus Walleij 2017-05-30 09:53:32 +02:00 committed by Alexandre Belloni
parent 7f1e988dff
commit 1d61d2592c
4 changed files with 53 additions and 52 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
MAINTAINERS
View File

@ -1226,7 +1226,7 @@ L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
T: git git://github.com/ulli-kroll/linux.git
S: Maintained
F: arch/arm/mach-gemini/
F: drivers/rtc/rtc-gemini.c
F: drivers/rtc/rtc-ftrtc010.c
ARM/CSR SIRFPRIMA2 MACHINE SUPPORT
M: Barry Song <baohua@kernel.org>

10
drivers/rtc/Kconfig
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@ -1495,16 +1495,16 @@ config RTC_DRV_ARMADA38X
This driver can also be built as a module. If so, the module
will be called armada38x-rtc.
config RTC_DRV_GEMINI
tristate "Gemini SoC RTC"
depends on ARCH_GEMINI || COMPILE_TEST
config RTC_DRV_FTRTC010
tristate "Faraday Technology FTRTC010 RTC"
depends on HAS_IOMEM
default ARCH_GEMINI
help
If you say Y here you will get support for the
RTC found on Gemini SoC's.
Faraday Technolog FTRTC010 found on e.g. Gemini SoC's.
This driver can also be built as a module. If so, the module
will be called rtc-gemini.
will be called rtc-ftrtc010.
config RTC_DRV_PS3
tristate "PS3 RTC"

2
drivers/rtc/Makefile
View File

@ -68,7 +68,7 @@ obj-$(CONFIG_RTC_DRV_EFI) += rtc-efi.o
obj-$(CONFIG_RTC_DRV_EM3027) += rtc-em3027.o
obj-$(CONFIG_RTC_DRV_EP93XX) += rtc-ep93xx.o
obj-$(CONFIG_RTC_DRV_FM3130) += rtc-fm3130.o
obj-$(CONFIG_RTC_DRV_GEMINI) += rtc-gemini.o
obj-$(CONFIG_RTC_DRV_FTRTC010) += rtc-ftrtc010.o
obj-$(CONFIG_RTC_DRV_GENERIC) += rtc-generic.o
obj-$(CONFIG_RTC_DRV_HID_SENSOR_TIME) += rtc-hid-sensor-time.o
obj-$(CONFIG_RTC_DRV_HYM8563) += rtc-hym8563.o

91
drivers/rtc/rtc-gemini.c → drivers/rtc/rtc-ftrtc010.c
View File

@ -1,5 +1,5 @@
/*
* Gemini OnChip RTC
* Faraday Technology FTRTC010 driver
*
* Copyright (C) 2009 Janos Laube <janos.dev@gmail.com>
*
@ -28,14 +28,14 @@
#include <linux/module.h>
#include <linux/clk.h>
#define DRV_NAME "rtc-gemini"
#define DRV_NAME "rtc-ftrtc010"
MODULE_AUTHOR("Hans Ulli Kroll <ulli.kroll@googlemail.com>");
MODULE_DESCRIPTION("RTC driver for Gemini SoC");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:" DRV_NAME);
struct gemini_rtc {
struct ftrtc010_rtc {
struct rtc_device *rtc_dev;
void __iomem *rtc_base;
int rtc_irq;
@ -43,19 +43,19 @@ struct gemini_rtc {
struct clk *extclk;
};
enum gemini_rtc_offsets {
GEMINI_RTC_SECOND = 0x00,
GEMINI_RTC_MINUTE = 0x04,
GEMINI_RTC_HOUR = 0x08,
GEMINI_RTC_DAYS = 0x0C,
GEMINI_RTC_ALARM_SECOND = 0x10,
GEMINI_RTC_ALARM_MINUTE = 0x14,
GEMINI_RTC_ALARM_HOUR = 0x18,
GEMINI_RTC_RECORD = 0x1C,
GEMINI_RTC_CR = 0x20
enum ftrtc010_rtc_offsets {
FTRTC010_RTC_SECOND = 0x00,
FTRTC010_RTC_MINUTE = 0x04,
FTRTC010_RTC_HOUR = 0x08,
FTRTC010_RTC_DAYS = 0x0C,
FTRTC010_RTC_ALARM_SECOND = 0x10,
FTRTC010_RTC_ALARM_MINUTE = 0x14,
FTRTC010_RTC_ALARM_HOUR = 0x18,
FTRTC010_RTC_RECORD = 0x1C,
FTRTC010_RTC_CR = 0x20,
};
static irqreturn_t gemini_rtc_interrupt(int irq, void *dev)
static irqreturn_t ftrtc010_rtc_interrupt(int irq, void *dev)
{
return IRQ_HANDLED;
}
@ -69,18 +69,18 @@ static irqreturn_t gemini_rtc_interrupt(int irq, void *dev)
* the same thing, without the rtc-lib.c calls.
*/
static int gemini_rtc_read_time(struct device *dev, struct rtc_time *tm)
static int ftrtc010_rtc_read_time(struct device *dev, struct rtc_time *tm)
{
struct gemini_rtc *rtc = dev_get_drvdata(dev);
struct ftrtc010_rtc *rtc = dev_get_drvdata(dev);
unsigned int days, hour, min, sec;
unsigned long offset, time;
sec = readl(rtc->rtc_base + GEMINI_RTC_SECOND);
min = readl(rtc->rtc_base + GEMINI_RTC_MINUTE);
hour = readl(rtc->rtc_base + GEMINI_RTC_HOUR);
days = readl(rtc->rtc_base + GEMINI_RTC_DAYS);
offset = readl(rtc->rtc_base + GEMINI_RTC_RECORD);
sec = readl(rtc->rtc_base + FTRTC010_RTC_SECOND);
min = readl(rtc->rtc_base + FTRTC010_RTC_MINUTE);
hour = readl(rtc->rtc_base + FTRTC010_RTC_HOUR);
days = readl(rtc->rtc_base + FTRTC010_RTC_DAYS);
offset = readl(rtc->rtc_base + FTRTC010_RTC_RECORD);
time = offset + days * 86400 + hour * 3600 + min * 60 + sec;
@ -89,9 +89,9 @@ static int gemini_rtc_read_time(struct device *dev, struct rtc_time *tm)
return 0;
}
static int gemini_rtc_set_time(struct device *dev, struct rtc_time *tm)
static int ftrtc010_rtc_set_time(struct device *dev, struct rtc_time *tm)
{
struct gemini_rtc *rtc = dev_get_drvdata(dev);
struct ftrtc010_rtc *rtc = dev_get_drvdata(dev);
unsigned int sec, min, hour, day;
unsigned long offset, time;
@ -100,27 +100,27 @@ static int gemini_rtc_set_time(struct device *dev, struct rtc_time *tm)
rtc_tm_to_time(tm, &time);
sec = readl(rtc->rtc_base + GEMINI_RTC_SECOND);
min = readl(rtc->rtc_base + GEMINI_RTC_MINUTE);
hour = readl(rtc->rtc_base + GEMINI_RTC_HOUR);
day = readl(rtc->rtc_base + GEMINI_RTC_DAYS);
sec = readl(rtc->rtc_base + FTRTC010_RTC_SECOND);
min = readl(rtc->rtc_base + FTRTC010_RTC_MINUTE);
hour = readl(rtc->rtc_base + FTRTC010_RTC_HOUR);
day = readl(rtc->rtc_base + FTRTC010_RTC_DAYS);
offset = time - (day * 86400 + hour * 3600 + min * 60 + sec);
writel(offset, rtc->rtc_base + GEMINI_RTC_RECORD);
writel(0x01, rtc->rtc_base + GEMINI_RTC_CR);
writel(offset, rtc->rtc_base + FTRTC010_RTC_RECORD);
writel(0x01, rtc->rtc_base + FTRTC010_RTC_CR);
return 0;
}
static const struct rtc_class_ops gemini_rtc_ops = {
.read_time = gemini_rtc_read_time,
.set_time = gemini_rtc_set_time,
static const struct rtc_class_ops ftrtc010_rtc_ops = {
.read_time = ftrtc010_rtc_read_time,
.set_time = ftrtc010_rtc_set_time,
};
static int gemini_rtc_probe(struct platform_device *pdev)
static int ftrtc010_rtc_probe(struct platform_device *pdev)
{
struct gemini_rtc *rtc;
struct ftrtc010_rtc *rtc;
struct device *dev = &pdev->dev;
struct resource *res;
int ret;
@ -166,19 +166,19 @@ static int gemini_rtc_probe(struct platform_device *pdev)
if (!rtc->rtc_base)
return -ENOMEM;
ret = devm_request_irq(dev, rtc->rtc_irq, gemini_rtc_interrupt,
ret = devm_request_irq(dev, rtc->rtc_irq, ftrtc010_rtc_interrupt,
IRQF_SHARED, pdev->name, dev);
if (unlikely(ret))
return ret;
rtc->rtc_dev = rtc_device_register(pdev->name, dev,
&gemini_rtc_ops, THIS_MODULE);
&ftrtc010_rtc_ops, THIS_MODULE);
return PTR_ERR_OR_ZERO(rtc->rtc_dev);
}
static int gemini_rtc_remove(struct platform_device *pdev)
static int ftrtc010_rtc_remove(struct platform_device *pdev)
{
struct gemini_rtc *rtc = platform_get_drvdata(pdev);
struct ftrtc010_rtc *rtc = platform_get_drvdata(pdev);
if (!IS_ERR(rtc->extclk))
clk_disable_unprepare(rtc->extclk);
@ -189,19 +189,20 @@ static int gemini_rtc_remove(struct platform_device *pdev)
return 0;
}
static const struct of_device_id gemini_rtc_dt_match[] = {
static const struct of_device_id ftrtc010_rtc_dt_match[] = {
{ .compatible = "cortina,gemini-rtc" },
{ .compatible = "faraday,ftrtc010" },
{ }
};
MODULE_DEVICE_TABLE(of, gemini_rtc_dt_match);
MODULE_DEVICE_TABLE(of, ftrtc010_rtc_dt_match);
static struct platform_driver gemini_rtc_driver = {
static struct platform_driver ftrtc010_rtc_driver = {
.driver = {
.name = DRV_NAME,
.of_match_table = gemini_rtc_dt_match,
.of_match_table = ftrtc010_rtc_dt_match,
},
.probe = gemini_rtc_probe,
.remove = gemini_rtc_remove,
.probe = ftrtc010_rtc_probe,
.remove = ftrtc010_rtc_remove,
};
module_platform_driver_probe(gemini_rtc_driver, gemini_rtc_probe);
module_platform_driver_probe(ftrtc010_rtc_driver, ftrtc010_rtc_probe);