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scsi: ufs: Refactor ADAPT configuration function 

Several vendors are using same code to configure ADAPT settings for
HS-G4. Simply refactor it as common function.

Link: https://lore.kernel.org/r/20201116065054.7658-8-stanley.chu@mediatek.com
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Stanley Chu 2020-11-16 14:50:52 +08:00 committed by Martin K. Petersen
parent 85d6d3c189
commit fc85a74e28
2 changed files with 19 additions and 0 deletions
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16
drivers/scsi/ufs/ufshcd.c
View File

@ -3587,6 +3587,22 @@ static int ufshcd_dme_reset(struct ufs_hba *hba)
return ret;
}
int ufshcd_dme_configure_adapt(struct ufs_hba *hba,
int agreed_gear,
int adapt_val)
{
int ret;
if (agreed_gear != UFS_HS_G4)
adapt_val = PA_INITIAL_ADAPT;
ret = ufshcd_dme_set(hba,
UIC_ARG_MIB(PA_TXHSADAPTTYPE),
adapt_val);
return ret;
}
EXPORT_SYMBOL_GPL(ufshcd_dme_configure_adapt);
/**
* ufshcd_dme_enable - UIC command for DME_ENABLE
* @hba: per adapter instance

3
drivers/scsi/ufs/ufshcd.h
View File

@ -956,6 +956,9 @@ extern int ufshcd_runtime_idle(struct ufs_hba *hba);
extern int ufshcd_system_suspend(struct ufs_hba *hba);
extern int ufshcd_system_resume(struct ufs_hba *hba);
extern int ufshcd_shutdown(struct ufs_hba *hba);
extern int ufshcd_dme_configure_adapt(struct ufs_hba *hba,
int agreed_gear,
int adapt_val);
extern int ufshcd_dme_set_attr(struct ufs_hba *hba, u32 attr_sel,
u8 attr_set, u32 mib_val, u8 peer);
extern int ufshcd_dme_get_attr(struct ufs_hba *hba, u32 attr_sel,