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Commit 38c1605e authored by Asutosh Das's avatar Asutosh Das Committed by Todd Kjos
Browse files

FROMLIST: scsi: ufs: export hibern8 entry and exit 

Qualcomm controllers need to be in hibern8 before scaling up
or down the clocks. Hence, export the hibern8 entry and exit
functions.

Bug: 143136976
Link: https://lore.kernel.org/lkml/1571849351-819-1-git-send-email-asutoshd@codeaurora.org/


Change-Id: Ie7dc3b953790642e6d2893de6e6cc8c9cfb8be6d
Signed-off-by: default avatarAsutosh Das <asutoshd@codeaurora.org>
parent ecdebfe4

drivers/scsi/ufs/ufshcd.c

+4 −4
Original line number Diff line number Diff line
@@ -248,8 +248,6 @@ static int ufshcd_probe_hba(struct ufs_hba *hba); 
static int __ufshcd_setup_clocks(struct ufs_hba *hba, bool on,

				 bool skip_ref_clk);

static int ufshcd_setup_clocks(struct ufs_hba *hba, bool on);

static int ufshcd_uic_hibern8_exit(struct ufs_hba *hba);

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);
@@ -3929,7 +3927,7 @@ static int __ufshcd_uic_hibern8_enter(struct ufs_hba *hba) 
	return ret;

}



static int ufshcd_uic_hibern8_enter(struct ufs_hba *hba)

int ufshcd_uic_hibern8_enter(struct ufs_hba *hba)

{

	int ret = 0, retries;
@@ -3941,8 +3939,9 @@ static int ufshcd_uic_hibern8_enter(struct ufs_hba *hba) 
out:

	return ret;

}

EXPORT_SYMBOL_GPL(ufshcd_uic_hibern8_enter);



static int ufshcd_uic_hibern8_exit(struct ufs_hba *hba)

int ufshcd_uic_hibern8_exit(struct ufs_hba *hba)

{

	struct uic_command uic_cmd = {0};

	int ret;
@@ -3968,6 +3967,7 @@ static int ufshcd_uic_hibern8_exit(struct ufs_hba *hba) 


	return ret;

}

EXPORT_SYMBOL_GPL(ufshcd_uic_hibern8_exit);



static void ufshcd_auto_hibern8_enable(struct ufs_hba *hba)

{

drivers/scsi/ufs/ufshcd.h

+2 −1
Original line number Diff line number Diff line
@@ -1145,5 +1145,6 @@ static inline u8 ufshcd_scsi_to_upiu_lun(unsigned int scsi_lun) 


int ufshcd_dump_regs(struct ufs_hba *hba, size_t offset, size_t len,

		     const char *prefix);



int ufshcd_uic_hibern8_enter(struct ufs_hba *hba);

int ufshcd_uic_hibern8_exit(struct ufs_hba *hba);

#endif /* End of Header */