scsi: ufs: Export ufshcd_uic_change_pwr_mode()

Export ufshcd_uic_change_pwr_mode() to allow vendors to use it for
SoC-specific power mode change design limitations.

Link: https://lore.kernel.org/r/20220616053725.5681-2-stanley.chu@mediatek.com
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c
index bb6cbd5..f484ba6 100644 (file)
--- a/drivers/ufs/core/ufshcd.c
+++ b/drivers/ufs/core/ufshcd.c
@@ -4093,7 +4093,7 @@ out_unlock:
  *
  * Returns 0 on success, non-zero value on failure
  */
-static int ufshcd_uic_change_pwr_mode(struct ufs_hba *hba, u8 mode)
+int ufshcd_uic_change_pwr_mode(struct ufs_hba *hba, u8 mode)
 {
        struct uic_command uic_cmd = {0};
        int ret;
@@ -4118,6 +4118,7 @@ static int ufshcd_uic_change_pwr_mode(struct ufs_hba *hba, u8 mode)
 out:
        return ret;
 }
+EXPORT_SYMBOL_GPL(ufshcd_uic_change_pwr_mode);
 
 int ufshcd_link_recovery(struct ufs_hba *hba)
 {

diff --git a/include/ufs/ufshcd.h b/include/ufs/ufshcd.h
index 991aea0..cb66304 100644 (file)
--- a/include/ufs/ufshcd.h
+++ b/include/ufs/ufshcd.h
@@ -1099,6 +1099,7 @@ 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_uic_change_pwr_mode(struct ufs_hba *hba, u8 mode);
 
 /* UIC command interfaces for DME primitives */
 #define DME_LOCAL      0