Eric Lee / smarc-fsl-linux-kernel

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Commit b4520dcfc6dc976c5304dddb51d7b9043ce138cf

Authored by Li Jun
Committed by Jason Liu
1 parent 69d60faafa
Exists in smarc_8mm_imx_4.14.98_2.0.0_ga and in 4 other branches smarc-imx6_4.14.98_2.0.0_ga, smarc-imx7_4.14.98_2.0.0_ga, smarc_8m_00d0_imx_4.14.98_2.0.0_ga, smarc_8m_imx_4.14.98_2.0.0_ga

MLK-21368 staging: typec: tcpci: disable irq when system suspend 

Disable typec irq when suspend to avoid the threaded irq to access
some resource(e.g. i2c over rpmsg) but those resource is not
available at later phrase, also use IRQ_DISABLE_UNLAZY flag to
mask the irq on irq chip level when irq happens.

Suggested-by: Anson Huang <anson.huang@nxp.com>
Acked-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Li Jun <jun.li@nxp.com>
(cherry picked from commit 61869f787fb0ee2f00d0fe9443cb8b487e16e5ec)

Showing 1 changed file with 6 additions and 0 deletions Side-by-side Diff

drivers/staging/typec/tcpci.c
Diff comments   View file @ b4520dc
... ... @@ -860,6 +860,7 @@
860 860 if (err)
861 861 goto err1;
862 862  
  863 + irq_set_status_flags(client->irq, IRQ_DISABLE_UNLAZY);
863 864 err = devm_request_threaded_irq(tcpci->dev, client->irq, NULL,
864 865 tcpci_irq,
865 866 IRQF_ONESHOT | IRQF_TRIGGER_LOW,
... ... @@ -880,6 +881,7 @@
880 881 struct tcpci *tcpci = i2c_get_clientdata(client);
881 882  
882 883 tcpm_unregister_port(tcpci->port);
  884 + irq_clear_status_flags(client->irq, IRQ_DISABLE_UNLAZY);
883 885  
884 886 return 0;
885 887 }
... ... @@ -890,6 +892,8 @@
890 892  
891 893 if (device_may_wakeup(dev))
892 894 enable_irq_wake(tcpci->client->irq);
  895 + else
  896 + disable_irq(tcpci->client->irq);
893 897  
894 898 return 0;
895 899 }
... ... @@ -900,6 +904,8 @@
900 904  
901 905 if (device_may_wakeup(dev))
902 906 disable_irq_wake(tcpci->client->irq);
  907 + else
  908 + enable_irq(tcpci->client->irq);
903 909  
904 910 return 0;
905 911 }