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rtc: jz4740: make the driver buildable as a module again

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By using kernel_halt() instead of machine_halt(), we can make the driver
build as a module.
However, jz4740 platforms not loading this module will not be able to power
off.

Suggested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>

Revert "rtc: jz4740: make the driver builtin only"

This reverts commit b9168c539c.
This commit is contained in:
Alexandre Belloni 2017-01-25 00:44:16 +01:00
parent 7ce7d89f48
commit 586655d278
2 changed files with 14 additions and 3 deletions
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5
drivers/rtc/Kconfig
View file

@ -1551,12 +1551,15 @@ config RTC_DRV_MPC5121
will be called rtc-mpc5121.
config RTC_DRV_JZ4740
bool "Ingenic JZ4740 SoC"
tristate "Ingenic JZ4740 SoC"
depends on MACH_INGENIC || COMPILE_TEST
help
If you say yes here you get support for the Ingenic JZ47xx SoCs RTC
controllers.
This driver can also be buillt as a module. If so, the module
will be called rtc-jz4740.
config RTC_DRV_LPC24XX
tristate "NXP RTC for LPC178x/18xx/408x/43xx"
depends on ARCH_LPC18XX || COMPILE_TEST

12
drivers/rtc/rtc-jz4740.c
View file

@ -17,6 +17,7 @@
#include <linux/clk.h>
#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/reboot.h>
@ -294,7 +295,7 @@ static void jz4740_rtc_power_off(void)
JZ_REG_RTC_RESET_COUNTER, reset_counter_ticks);
jz4740_rtc_poweroff(dev_for_power_off);
machine_halt();
kernel_halt();
}
static const struct of_device_id jz4740_rtc_of_match[] = {
@ -302,6 +303,7 @@ static const struct of_device_id jz4740_rtc_of_match[] = {
{ .compatible = "ingenic,jz4780-rtc", .data = (void *)ID_JZ4780 },
{},
};
MODULE_DEVICE_TABLE(of, jz4740_rtc_of_match);
static int jz4740_rtc_probe(struct platform_device *pdev)
{
@ -429,6 +431,7 @@ static const struct platform_device_id jz4740_rtc_ids[] = {
{ "jz4780-rtc", ID_JZ4780 },
{}
};
MODULE_DEVICE_TABLE(platform, jz4740_rtc_ids);
static struct platform_driver jz4740_rtc_driver = {
.probe = jz4740_rtc_probe,
@ -440,4 +443,9 @@ static struct platform_driver jz4740_rtc_driver = {
.id_table = jz4740_rtc_ids,
};
builtin_platform_driver(jz4740_rtc_driver);
module_platform_driver(jz4740_rtc_driver);
MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("RTC driver for the JZ4740 SoC\n");
MODULE_ALIAS("platform:jz4740-rtc");