diff options
| author | Mikko Perttunen <mperttunen@nvidia.com> | 2021-02-10 15:49:45 +0200 |
|---|---|---|
| committer | Jassi Brar <jaswinder.singh@linaro.org> | 2021-02-14 23:28:40 -0600 |
| commit | d1e6bc0ca01c0b0b1a2d543223024cf2c8f52fb7 (patch) | |
| tree | 82147341734e01aec8033dd6539d5eb8e5b684ff | |
| parent | 4450f128c51160bfded6b483eba37d0628d7adb2 (diff) | |
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: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
| -rw-r--r-- | drivers/mailbox/tegra-hsp.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/mailbox/tegra-hsp.c b/drivers/mailbox/tegra-hsp.c index e07091d71986..acd0675da681 100644 --- a/drivers/mailbox/tegra-hsp.c +++ b/drivers/mailbox/tegra-hsp.c @@ -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) |