disable FB

hc

2024-01-04 1543e317f1da31b75942316931e8f491a8920811

 kernel/drivers/soc/ti/pm33xx.c
..
..
@@ -19,6 +19,7 @@
19
19
 #include <linux/of_address.h>
20
20
 #include <linux/platform_data/pm33xx.h>
21
21
 #include <linux/platform_device.h>
22
+#include <linux/pm_runtime.h>
22
23
 #include <linux/rtc.h>
23
24
 #include <linux/rtc/rtc-omap.h>
24
25
 #include <linux/sizes.h>
..
..
@@ -528,7 +529,7 @@
528
529
 
529
530
 	ret = am33xx_pm_alloc_sram();
530
531
 	if (ret)
531
-		return ret;
532
+		goto err_wkup_m3_ipc_put;
532
533
 
533
534
 	ret = am33xx_pm_rtc_setup();
534
535
 	if (ret)
..
..
@@ -555,28 +556,41 @@
555
556
 	suspend_wfi_flags |= WFI_FLAG_WAKE_M3;
556
557
 #endif /* CONFIG_SUSPEND */
557
558
 
559
+	pm_runtime_enable(dev);
560
+	ret = pm_runtime_get_sync(dev);
561
+	if (ret < 0) {
562
+		pm_runtime_put_noidle(dev);
563
+		goto err_pm_runtime_disable;
564
+	}
565
+
558
566
 	ret = pm_ops->init(am33xx_do_sram_idle);
559
567
 	if (ret) {
560
568
 		dev_err(dev, "Unable to call core pm init!\n");
561
569
 		ret = -ENODEV;
562
-		goto err_put_wkup_m3_ipc;
570
+		goto err_pm_runtime_put;
563
571
 	}
564
572
 
565
573
 	return 0;
566
574
 
567
-err_put_wkup_m3_ipc:
568
-	wkup_m3_ipc_put(m3_ipc);
575
+err_pm_runtime_put:
576
+	pm_runtime_put_sync(dev);
577
+err_pm_runtime_disable:
578
+	pm_runtime_disable(dev);
569
579
 err_unsetup_rtc:
570
580
 	iounmap(rtc_base_virt);
571
581
 	clk_put(rtc_fck);
572
582
 err_free_sram:
573
583
 	am33xx_pm_free_sram();
574
584
 	pm33xx_dev = NULL;
585
+err_wkup_m3_ipc_put:
586
+	wkup_m3_ipc_put(m3_ipc);
575
587
 	return ret;
576
588
 }
577
589
 
578
590
 static int am33xx_pm_remove(struct platform_device *pdev)
579
591
 {
592
+	pm_runtime_put_sync(&pdev->dev);
593
+	pm_runtime_disable(&pdev->dev);
580
594
 	if (pm_ops->deinit)
581
595
 		pm_ops->deinit();
582
596
 	suspend_set_ops(NULL);