Commit d1e6bc0c authored by Mikko Perttunen's avatar Mikko Perttunen Committed by Jassi Brar
Browse files

mailbox: tegra-hsp: Set lockdep class dynamically 



On Tegra194, due to both BPMP and TCU using mailboxes, we get a
lockdep spew at boot. Both are using different instances of HSP,
so this is harmless. As such give each HSP instance a different
lockdep class.

Signed-off-by: default avatarMikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: default avatarJassi Brar <jaswinder.singh@linaro.org>
parent 4450f128

drivers/mailbox/tegra-hsp.c

+15 −0
Original line number Diff line number Diff line
@@ -98,7 +98,9 @@ struct tegra_hsp { 
	unsigned int num_ss;

	unsigned int num_db;

	unsigned int num_si;



	spinlock_t lock;

	struct lock_class_key lock_key;



	struct list_head doorbells;

	struct tegra_hsp_mailbox *mailboxes;
@@ -775,6 +777,18 @@ static int tegra_hsp_probe(struct platform_device *pdev) 
			return err;

	}



	lockdep_register_key(&hsp->lock_key);

	lockdep_set_class(&hsp->lock, &hsp->lock_key);



	return 0;

}



static int tegra_hsp_remove(struct platform_device *pdev)

{

	struct tegra_hsp *hsp = platform_get_drvdata(pdev);



	lockdep_unregister_key(&hsp->lock_key);



	return 0;

}
@@ -834,6 +848,7 @@ static struct platform_driver tegra_hsp_driver = { 
		.pm = &tegra_hsp_pm_ops,

	},

	.probe = tegra_hsp_probe,

	.remove = tegra_hsp_remove,

};



static int __init tegra_hsp_init(void)