drm/i915/pmu: 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: Zack Rusin <zack.rusin@broadcom.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Link: https://lore.kernel.org/all/71198b93c438866fe2be7323e59cdbf21aa0d493.1738746904.git.namcao@linutronix.de

Author: covanam

drivers/gpu/drm/i915/i915_pmu.c

@@ -1264,8 +1264,7 @@ void i915_pmu_register(struct drm_i915_private *i915)
 	int ret = -ENOMEM;
 
 	spin_lock_init(&pmu->lock);
-	hrtimer_init(&pmu->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	pmu->timer.function = i915_sample;
+	hrtimer_setup(&pmu->timer, i915_sample, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 	pmu->cpuhp.cpu = -1;
 	init_rc6(pmu);