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FROMLIST: clocksource/drivers/sprd: Add module support to Spreadtrum timer

Browse source 
Timers still have devices created for them. So, when compiling a timer
driver as a module, implement it as a normal platform device driver.

Bug: 146868249
Change-Id: I04f939e855a985b1791c57ff1f36ace6e5a73049
Link: https://lore.kernel.org/patchwork/patch/1214448/
Signed-off-by: Saravana Kannan <saravanak@google.com>
Signed-off-by: Baolin Wang <baolin.wang7@gmail.com>
Signed-off-by: Baolin Wang <baolin.wang@unisoc.corp-partner.google.com>
Signed-off-by: Orson Zhai <orson.zhai@unisoc.com>
This commit is contained in:
Baolin Wang 2020-03-24 10:58:48 +08:00 • committed by Todd Kjos
commit 85e089d411
2 changed files with 36 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

2
drivers/clocksource/Kconfig
View file

@ -481,7 +481,7 @@ config MTK_TIMER
Support for Mediatek timer driver.
config SPRD_TIMER
bool "Spreadtrum timer driver" if EXPERT
tristate "Spreadtrum timer driver" if EXPERT
depends on HAS_IOMEM
depends on (ARCH_SPRD || COMPILE_TEST)
default ARCH_SPRD

37
drivers/clocksource/timer-sprd.c
View file

@ -5,6 +5,8 @@
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include "timer-of.h"
@ -141,7 +143,7 @@ static struct timer_of to = {
},
};
static int __init sprd_timer_init(struct device_node *np)
static int sprd_timer_init(struct device_node *np)
{
int ret;
@ -190,7 +192,7 @@ static struct clocksource suspend_clocksource = {
.flags = CLOCK_SOURCE_IS_CONTINUOUS | CLOCK_SOURCE_SUSPEND_NONSTOP,
};
static int __init sprd_suspend_timer_init(struct device_node *np)
static int sprd_suspend_timer_init(struct device_node *np)
{
int ret;
@ -204,6 +206,37 @@ static int __init sprd_suspend_timer_init(struct device_node *np)
return 0;
}
#ifdef MODULE
static int sprd_timer_probe(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
if (of_property_read_bool(np, "interrupts"))
return sprd_timer_init(np);
return sprd_suspend_timer_init(np);
}
static const struct of_device_id sprd_timer_match_table[] = {
{ .compatible = "sprd,sc9860-suspend-timer" },
{ .compatible = "sprd,sc9860-timer" },
{ }
};
MODULE_DEVICE_TABLE(of, sprd_timer_match_table);
static struct platform_driver sprd_timer_driver = {
.probe = sprd_timer_probe,
.driver = {
.name = "sprd-timer",
.of_match_table = sprd_timer_match_table,
},
};
module_platform_driver(sprd_timer_driver);
#else
TIMER_OF_DECLARE(sc9860_timer, "sprd,sc9860-timer", sprd_timer_init);
TIMER_OF_DECLARE(sc9860_persistent_timer, "sprd,sc9860-suspend-timer",
sprd_suspend_timer_init);
#endif
MODULE_LICENSE("GPL v2");