[PATCH v5 06/12] scsi: ufs: dwc: Export common clock divider and link status helpers

[Larisa Grigore <larisa.grigore@oss.nxp.com>]

Make ufshcd_dwc_program_clk_div() and ufshcd_dwc_link_is_up() available to
DWC-based platform glue drivers. These helpers are needed by platform
drivers that must program the controller HCLK divider and verify link state
during their vendor-specific initialization flows.

Signed-off-by: Larisa Grigore <larisa.grigore@oss.nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
---
 drivers/ufs/host/ufshcd-dwc.c | 6 ++++--
 drivers/ufs/host/ufshcd-dwc.h | 2 ++
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/ufs/host/ufshcd-dwc.c b/drivers/ufs/host/ufshcd-dwc.c
index 82b03b926e77..977b368474b0 100644
--- a/drivers/ufs/host/ufshcd-dwc.c
+++ b/drivers/ufs/host/ufshcd-dwc.c
@@ -39,10 +39,11 @@ EXPORT_SYMBOL(ufshcd_dwc_dme_set_attrs);
  * @divider_val: clock divider value to be programmed
  *
  */
-static void ufshcd_dwc_program_clk_div(struct ufs_hba *hba, u32 divider_val)
+void ufshcd_dwc_program_clk_div(struct ufs_hba *hba, u32 divider_val)
 {
 	ufshcd_writel(hba, divider_val, DWC_UFS_REG_HCLKDIV);
 }
+EXPORT_SYMBOL(ufshcd_dwc_program_clk_div);
 
 /**
  * ufshcd_dwc_link_is_up() - check if link is up.
@@ -50,7 +51,7 @@ static void ufshcd_dwc_program_clk_div(struct ufs_hba *hba, u32 divider_val)
  *
  * Return: 0 on success, a negative errno value on failure.
  */
-static int ufshcd_dwc_link_is_up(struct ufs_hba *hba)
+int ufshcd_dwc_link_is_up(struct ufs_hba *hba)
 {
 	int dme_result = 0;
 	int ret;
@@ -66,6 +67,7 @@ static int ufshcd_dwc_link_is_up(struct ufs_hba *hba)
 
 	return -ENOLINK;
 }
+EXPORT_SYMBOL(ufshcd_dwc_link_is_up);
 
 /**
  * ufshcd_dwc_connection_setup() - configure unipro attributes.
diff --git a/drivers/ufs/host/ufshcd-dwc.h b/drivers/ufs/host/ufshcd-dwc.h
index d8673cd54d4c..53b523ef59df 100644
--- a/drivers/ufs/host/ufshcd-dwc.h
+++ b/drivers/ufs/host/ufshcd-dwc.h
@@ -47,4 +47,6 @@ int ufshcd_dwc_dme_set_attrs(struct ufs_hba *hba,
 				const struct ufshcd_dme_attr_val *v, int n);
 int ufshcd_dwc_phy_reg_write(struct ufs_hba *hba, u32 addr, u32 val);
 int ufshcd_dwc_phy_reg_read(struct ufs_hba *hba, u32 addr, u32 *val);
+int ufshcd_dwc_link_is_up(struct ufs_hba *hba);
+void ufshcd_dwc_program_clk_div(struct ufs_hba *hba, u32 divider_val);
 #endif /* End of Header */
-- 
2.43.0