[PATCH V1 1/3] scsi: ufs: export api for use in vendor file

Nitin Rawat
2021-01-28T16:57:04Z

Exporting functions ufshcd_set_dev_pwr_mode, ufshcd_disable_vreg
and ufshcd_enable_vreg so that vendor drivers can make use of
them in setting vendor specific regulator setting
in vendor specific file.

Signed-off-by: Nitin Rawat <nitirawa@codeaurora.org>
Signed-off-by: Bao D. Nguyen <nguyenb@codeaurora.org>
Signed-off-by: Veerabhadrarao Badiganti <vbadigan@codeaurora.org>
---
drivers/scsi/ufs/ufshcd.c | 9 ++++++---
drivers/scsi/ufs/ufshcd.h | 4 ++++
2 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 9c691e4..000a03a 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -8091,7 +8091,7 @@ static int ufshcd_config_vreg(struct device *dev,
return ret;
}

-static int ufshcd_enable_vreg(struct device *dev, struct ufs_vreg *vreg)
+int ufshcd_enable_vreg(struct device *dev, struct ufs_vreg *vreg)
{
int ret = 0;

@@ -8110,8 +8110,9 @@ static int ufshcd_enable_vreg(struct device *dev, struct ufs_vreg *vreg)
out:
return ret;
}
+EXPORT_SYMBOL(ufshcd_enable_vreg);

-static int ufshcd_disable_vreg(struct device *dev, struct ufs_vreg *vreg)
+int ufshcd_disable_vreg(struct device *dev, struct ufs_vreg *vreg)
{
int ret = 0;

@@ -8131,6 +8132,7 @@ static int ufshcd_disable_vreg(struct device *dev, struct ufs_vreg *vreg)
out:
return ret;
}
+EXPORT_SYMBOL(ufshcd_disable_vreg);

static int ufshcd_setup_vreg(struct ufs_hba *hba, bool on)
{
@@ -8455,7 +8457,7 @@ ufshcd_send_request_sense(struct ufs_hba *hba, struct scsi_device *sdp)
* Returns 0 if requested power mode is set successfully
* Returns non-zero if failed to set the requested power mode
*/
-static int ufshcd_set_dev_pwr_mode(struct ufs_hba *hba,
+int ufshcd_set_dev_pwr_mode(struct ufs_hba *hba,
enum ufs_dev_pwr_mode pwr_mode)
{
unsigned char cmd[6] = { START_STOP };
@@ -8513,6 +8515,7 @@ static int ufshcd_set_dev_pwr_mode(struct ufs_hba *hba,
hba->host->eh_noresume = 0;
return ret;
}
+EXPORT_SYMBOL(ufshcd_set_dev_pwr_mode);

static int ufshcd_link_state_transition(struct ufs_hba *hba,
enum uic_link_state req_link_state,
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index ee61f82..1410c95 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -997,6 +997,10 @@ extern int ufshcd_dme_get_attr(struct ufs_hba *hba, u32 attr_sel,
u32 *mib_val, u8 peer);
extern int ufshcd_config_pwr_mode(struct ufs_hba *hba,
struct ufs_pa_layer_attr *desired_pwr_mode);
+extern int ufshcd_set_dev_pwr_mode(struct ufs_hba *hba,
+ enum ufs_dev_pwr_mode pwr_mode);
+extern int ufshcd_enable_vreg(struct device *dev, struct ufs_vreg *vreg);
+extern int ufshcd_disable_vreg(struct device *dev, struct ufs_vreg *vreg);

/* UIC command interfaces for DME primitives */
#define DME_LOCAL 0
--
2.7.4