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authorMax Filippov <jcmvbkbc@gmail.com>2023-06-07 03:43:47 +0300
committerMax Filippov <jcmvbkbc@gmail.com>2023-06-13 05:48:55 +0300
commit71a5fd7d89fb6e6071f041ba1b55837837ccddb8 (patch)
treedd396c0fe821564fba92b4426f7f5a2a7f35b621 /arch/xtensa/platforms/xt2000
parentf9f6ff8c5adb1b60cabc65dd830580dedeeb9aa6 (diff)
downloadlinux-71a5fd7d89fb6e6071f041ba1b55837837ccddb8.tar.xz
xtensa: drop platform_heartbeat
platform_heartbeat is called from the timer interrupt handler, but there may be no periodic timer interrupts on xtensa, so the frequency of platform_heartbeat calls may be unrelated to HZ. Drop the callback and reimplement its only user with a timer. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Diffstat (limited to 'arch/xtensa/platforms/xt2000')
-rw-r--r--arch/xtensa/platforms/xt2000/setup.c20
1 files changed, 11 insertions, 9 deletions
diff --git a/arch/xtensa/platforms/xt2000/setup.c b/arch/xtensa/platforms/xt2000/setup.c
index 08bc9b0ede3e..dc187684203b 100644
--- a/arch/xtensa/platforms/xt2000/setup.c
+++ b/arch/xtensa/platforms/xt2000/setup.c
@@ -23,6 +23,7 @@
#include <linux/platform_device.h>
#include <linux/serial.h>
#include <linux/serial_8250.h>
+#include <linux/timer.h>
#include <asm/processor.h>
#include <asm/platform.h>
@@ -70,16 +71,17 @@ void __init platform_setup(char** cmdline)
/* Heartbeat. Let the LED blink. */
-void platform_heartbeat(void)
+static void xt2000_heartbeat(struct timer_list *unused);
+
+static DEFINE_TIMER(heartbeat_timer, xt2000_heartbeat);
+
+static void xt2000_heartbeat(struct timer_list *unused)
{
- static int i, t;
+ static int i;
- if (--t < 0)
- {
- t = 59;
- led_print(7, i ? ".": " ");
- i ^= 1;
- }
+ led_print(7, i ? "." : " ");
+ i ^= 1;
+ mod_timer(&heartbeat_timer, jiffies + HZ / 2);
}
//#define RS_TABLE_SIZE 2
@@ -137,7 +139,7 @@ static int __init xt2000_setup_devinit(void)
{
platform_device_register(&xt2000_serial8250_device);
platform_device_register(&xt2000_sonic_device);
-
+ mod_timer(&heartbeat_timer, jiffies + HZ / 2);
return 0;
}