drm/xe/oa: Switch to use hrtimer_setup()

hrtimer_setup() takes the callback function pointer as argument and
initializes the timer completely.

Replace hrtimer_init() and the open coded initialization of
hrtimer::function with the new setup mechanism.

Patch was created by using Coccinelle.

Signed-off-by: Nam Cao <namcao@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Lucas De Marchi <lucas.demarchi@intel.com>
Acked-by: Zack Rusin <zack.rusin@broadcom.com>
Link: https://lore.kernel.org/all/08238e193b1f63ae7d5d607fa975420735a869a5.1738746904.git.namcao@linutronix.de

Author: covanam

drivers/gpu/drm/xe/xe_oa.c

@@ -1766,8 +1766,8 @@ static int xe_oa_stream_init(struct xe_oa_stream *stream,
 
 	WRITE_ONCE(u->exclusive_stream, stream);
 
-	hrtimer_init(&stream->poll_check_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	stream->poll_check_timer.function = xe_oa_poll_check_timer_cb;
+	hrtimer_setup(&stream->poll_check_timer, xe_oa_poll_check_timer_cb, CLOCK_MONOTONIC,
+		      HRTIMER_MODE_REL);
 	init_waitqueue_head(&stream->poll_wq);
 
 	spin_lock_init(&stream->oa_buffer.ptr_lock);