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authorStanley Chu <stanley.chu@mediatek.com>2020-11-16 14:50:52 +0800
committerMartin K. Petersen <martin.petersen@oracle.com>2020-11-17 01:03:18 -0500
commitfc85a74e28fe087dceb80eb69f37307ec97b6b47 (patch)
tree1d9b767940528733935fc575b39906fbeb69a5a9 /drivers/scsi/ufs
parent85d6d3c18953b9653d0934c087fe73ff02e43c79 (diff)
downloadlinux-fc85a74e28fe087dceb80eb69f37307ec97b6b47.tar.bz2
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>
Diffstat (limited to 'drivers/scsi/ufs')
-rw-r--r--drivers/scsi/ufs/ufshcd.c16
-rw-r--r--drivers/scsi/ufs/ufshcd.h3
2 files changed, 19 insertions, 0 deletions
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 9186ee01379a..80cbce414678 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -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
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index 5191d87f6263..d0b68df07eef 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -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,