add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/clocksource/timer-cadence-ttc.c
..
..
@@ -486,10 +486,10 @@
486
486
 	 * and use it. Note that the event timer uses the interrupt and it's the
487
487
 	 * 2nd TTC hence the irq_of_parse_and_map(,1)
488
488
 	 */
489
-	timer_baseaddr = of_iomap(timer, 0);
490
-	if (!timer_baseaddr) {
489
+	timer_baseaddr = devm_of_iomap(&pdev->dev, timer, 0, NULL);
490
+	if (IS_ERR(timer_baseaddr)) {
491
491
 		pr_err("ERROR: invalid timer base address\n");
492
-		return -ENXIO;
492
+		return PTR_ERR(timer_baseaddr);
493
493
 	}
494
494
 
495
495
 	irq = irq_of_parse_and_map(timer, 1);
..
..
@@ -513,20 +513,27 @@
513
513
 	clk_ce = of_clk_get(timer, clksel);
514
514
 	if (IS_ERR(clk_ce)) {
515
515
 		pr_err("ERROR: timer input clock not found\n");
516
-		return PTR_ERR(clk_ce);
516
+		ret = PTR_ERR(clk_ce);
517
+		goto put_clk_cs;
517
518
 	}
518
519
 
519
520
 	ret = ttc_setup_clocksource(clk_cs, timer_baseaddr, timer_width);
520
521
 	if (ret)
521
-		return ret;
522
+		goto put_clk_ce;
522
523
 
523
524
 	ret = ttc_setup_clockevent(clk_ce, timer_baseaddr + 4, irq);
524
525
 	if (ret)
525
-		return ret;
526
+		goto put_clk_ce;
526
527
 
527
528
 	pr_info("%pOFn #0 at %p, irq=%d\n", timer, timer_baseaddr, irq);
528
529
 
529
530
 	return 0;
531
+
532
+put_clk_ce:
533
+	clk_put(clk_ce);
534
+put_clk_cs:
535
+	clk_put(clk_cs);
536
+	return ret;
530
537
 }
531
538
 
532
539
 static const struct of_device_id ttc_timer_of_match[] = {