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| author | Asutosh Das <asutoshd@codeaurora.org> | 2021-09-28 02:06:12 -0700 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2021-09-28 23:33:31 -0400 |
| commit | 525943a586ef43ed365974deef2ebd9e921f2f83 (patch) | |
| tree | 9f1e5249784f2e1f991b350854c63775ca5b51eb /drivers/scsi/ufs | |
| parent | a5b141a895b592b401d739949d347ca473921c92 (diff) | |
| download | linux-stable-525943a586ef43ed365974deef2ebd9e921f2f83.tar.gz linux-stable-525943a586ef43ed365974deef2ebd9e921f2f83.tar.bz2 linux-stable-525943a586ef43ed365974deef2ebd9e921f2f83.zip | |
scsi: ufs: core: Export hibern8 entry and exit functions
Qualcomm controllers need to be in hibern8 before scaling up or down the
clocks. Hence, export the hibern8 entry and exit functions.
Link: https://lore.kernel.org/r/a29bfdd0c8f1d1a3e5fb69e43ea277c97a7f0cb6.1632818942.git.nguyenb@codeaurora.org
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Asutosh Das <asutoshd@codeaurora.org>
Signed-off-by: Bao D. Nguyen <nguyenb@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/ufs')
| -rw-r--r-- | drivers/scsi/ufs/ufshcd.c | 4 | ||||
| -rw-r--r-- | drivers/scsi/ufs/ufshcd.h | 1 |
2 files changed, 3 insertions, 2 deletions
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index debef631c89a..9faf02cbb9ad 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -227,7 +227,6 @@ static void ufshcd_hba_exit(struct ufs_hba *hba); static int ufshcd_clear_ua_wluns(struct ufs_hba *hba); static int ufshcd_probe_hba(struct ufs_hba *hba, bool async); static int ufshcd_setup_clocks(struct ufs_hba *hba, bool on); -static int ufshcd_uic_hibern8_enter(struct ufs_hba *hba); static inline void ufshcd_add_delay_before_dme_cmd(struct ufs_hba *hba); static int ufshcd_host_reset_and_restore(struct ufs_hba *hba); static void ufshcd_resume_clkscaling(struct ufs_hba *hba); @@ -4116,7 +4115,7 @@ int ufshcd_link_recovery(struct ufs_hba *hba) } EXPORT_SYMBOL_GPL(ufshcd_link_recovery); -static int ufshcd_uic_hibern8_enter(struct ufs_hba *hba) +int ufshcd_uic_hibern8_enter(struct ufs_hba *hba) { int ret; struct uic_command uic_cmd = {0}; @@ -4138,6 +4137,7 @@ static int ufshcd_uic_hibern8_enter(struct ufs_hba *hba) return ret; } +EXPORT_SYMBOL_GPL(ufshcd_uic_hibern8_enter); int ufshcd_uic_hibern8_exit(struct ufs_hba *hba) { diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h index 92d05329de68..ed960d206260 100644 --- a/drivers/scsi/ufs/ufshcd.h +++ b/drivers/scsi/ufs/ufshcd.h @@ -1011,6 +1011,7 @@ int ufshcd_init(struct ufs_hba *, void __iomem *, unsigned int); int ufshcd_link_recovery(struct ufs_hba *hba); int ufshcd_make_hba_operational(struct ufs_hba *hba); void ufshcd_remove(struct ufs_hba *); +int ufshcd_uic_hibern8_enter(struct ufs_hba *hba); int ufshcd_uic_hibern8_exit(struct ufs_hba *hba); void ufshcd_delay_us(unsigned long us, unsigned long tolerance); int ufshcd_wait_for_register(struct ufs_hba *hba, u32 reg, u32 mask, |