diff options
| author | Stanley Chu <stanley.chu@mediatek.com> | 2020-12-05 14:59:00 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2020-12-08 01:51:49 +0300 |
| commit | 172614a9d0e861f8ad0e3165dd1d02bc63adaa1b (patch) | |
| tree | a155190e582cb6d8aeb82a0ebc78e5b432285ffa | |
| parent | e965e5e00b23c47b7a9834436972aa37c5baa708 (diff) | |
| download | linux-172614a9d0e861f8ad0e3165dd1d02bc63adaa1b.tar.xz | |
scsi: ufs: Introduce event_notify variant function
Introduce event_notify variant function to allow vendor to get notification
of important events and connect to any proprietary debugging facilities.
Link: https://lore.kernel.org/r/20201205115901.26815-4-stanley.chu@mediatek.com
Reviewed-by: Asutosh Das <asutoshd@codeaurora.org>
Reviewed-by: Can Guo <cang@codeaurora.org>
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| -rw-r--r-- | drivers/scsi/ufs/ufshcd.c | 2 | ||||
| -rw-r--r-- | drivers/scsi/ufs/ufshcd.h | 11 |
2 files changed, 13 insertions, 0 deletions
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index f630955141df..308f624b3830 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -4480,6 +4480,8 @@ void ufshcd_update_evt_hist(struct ufs_hba *hba, u32 id, u32 val) e->val[e->pos] = val; e->tstamp[e->pos] = ktime_get(); e->pos = (e->pos + 1) % UFS_EVENT_HIST_LENGTH; + + ufshcd_vops_event_notify(hba, id, &val); } EXPORT_SYMBOL_GPL(ufshcd_update_evt_hist); diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h index b2eab23a17e8..815993239898 100644 --- a/drivers/scsi/ufs/ufshcd.h +++ b/drivers/scsi/ufs/ufshcd.h @@ -320,6 +320,7 @@ struct ufs_pwr_mode_info { * @phy_initialization: used to initialize phys * @device_reset: called to issue a reset pulse on the UFS device * @program_key: program or evict an inline encryption key + * @event_notify: called to notify important events */ struct ufs_hba_variant_ops { const char *name; @@ -355,6 +356,8 @@ struct ufs_hba_variant_ops { void *data); int (*program_key)(struct ufs_hba *hba, const union ufs_crypto_cfg_entry *cfg, int slot); + void (*event_notify)(struct ufs_hba *hba, + enum ufs_event_type evt, void *data); }; /* clock gating state */ @@ -1102,6 +1105,14 @@ static inline int ufshcd_vops_clk_scale_notify(struct ufs_hba *hba, return 0; } +static inline void ufshcd_vops_event_notify(struct ufs_hba *hba, + enum ufs_event_type evt, + void *data) +{ + if (hba->vops && hba->vops->event_notify) + hba->vops->event_notify(hba, evt, data); +} + static inline int ufshcd_vops_setup_clocks(struct ufs_hba *hba, bool on, enum ufs_notify_change_status status) { |