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scsi: ufs: core: Export hibern8 entry and exit functions

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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>
This commit is contained in:
Asutosh Das 2021-09-28 02:06:12 -07:00 committed by Martin K. Petersen
parent a5b141a895
commit 525943a586
2 changed files with 3 additions and 2 deletions
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4
drivers/scsi/ufs/ufshcd.c
View file

@ -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)
{

1
drivers/scsi/ufs/ufshcd.h
View file

@ -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,