diff options
| author | Asutosh Das <asutoshd@codeaurora.org> | 2021-09-28 02:06:12 -0700 |
|---|---|---|
| committer | Bhupesh Sharma <bhupesh.sharma@linaro.org> | 2022-05-20 08:19:14 +0200 |
| commit | adb54728a7a088d3e85113898a2b0e49e0550d82 (patch) | |
| tree | 10aaa45e919e8b08a7cb254d246051ea1d94eb8b | |
| parent | e9c01bf9f7b58369047a25f8490ea03557554cf1 (diff) | |
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>
(cherry picked from commit 525943a586ef43ed365974deef2ebd9e921f2f83)
| -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 0e4c04d3b023..a751cc79c723 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -225,7 +225,6 @@ static int ufshcd_clear_tm_cmd(struct ufs_hba *hba, int tag); static void ufshcd_hba_exit(struct ufs_hba *hba); static int ufshcd_probe_hba(struct ufs_hba *hba, bool init_dev_params); 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); @@ -4072,7 +4071,7 @@ 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}; @@ -4094,6 +4093,7 @@ 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 d470a52ff24c..dfefe2c98868 100644 --- a/drivers/scsi/ufs/ufshcd.h +++ b/drivers/scsi/ufs/ufshcd.h @@ -1005,6 +1005,7 @@ 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, |