linux-kernel - [PATCH v4 09/10] scsi: ufs: Export regulator functions

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Date:   Wed, 15 Jun 2022 11:51:45 +0800
From:   Stanley Chu <stanley.chu@...iatek.com>
To:     <linux-scsi@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <martin.petersen@...cle.com>, <avri.altman@....com>,
        <alim.akhtar@...sung.com>, <jejb@...ux.ibm.com>,
        <bvanassche@....org>
CC:     <peter.wang@...iatek.com>, <chun-hung.wu@...iatek.com>,
        <alice.chao@...iatek.com>, <powen.kao@...iatek.com>,
        <mason.zhang@...iatek.com>, <qilin.tan@...iatek.com>,
        <lin.gui@...iatek.com>, <eddie.huang@...iatek.com>,
        <tun-yu.yu@...iatek.com>, <cc.chou@...iatek.com>,
        <chaotian.jing@...iatek.com>, <jiajie.hao@...iatek.com>,
        <stanley.chu@...iatek.com>
Subject: [PATCH v4 09/10] scsi: ufs: Export regulator functions

Export below regulator functions to allow vendors to
customize regulator configuration in their own platforms.

int ufshcd_populate_vreg(struct device *dev, const char *name,
                         struct ufs_vreg **out_vreg);
int ufshcd_get_vreg(struct device *dev, struct ufs_vreg *vreg);

Signed-off-by: Stanley Chu <stanley.chu@...iatek.com>
---
 drivers/ufs/core/ufshcd.c        | 3 ++-
 drivers/ufs/host/ufshcd-pltfrm.c | 5 +++--
 drivers/ufs/host/ufshcd-pltfrm.h | 2 ++
 include/ufs/ufshcd.h             | 2 ++
 4 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c
index 0d16739c67bb..8131a75e41e5 100755
--- a/drivers/ufs/core/ufshcd.c
+++ b/drivers/ufs/core/ufshcd.c
@@ -8408,7 +8408,7 @@ static int ufshcd_setup_hba_vreg(struct ufs_hba *hba, bool on)
 	return ufshcd_toggle_vreg(hba->dev, info->vdd_hba, on);
 }
 
-static int ufshcd_get_vreg(struct device *dev, struct ufs_vreg *vreg)
+int ufshcd_get_vreg(struct device *dev, struct ufs_vreg *vreg)
 {
 	int ret = 0;
 
@@ -8424,6 +8424,7 @@ static int ufshcd_get_vreg(struct device *dev, struct ufs_vreg *vreg)
 out:
 	return ret;
 }
+EXPORT_SYMBOL_GPL(ufshcd_get_vreg);
 
 static int ufshcd_init_vreg(struct ufs_hba *hba)
 {
diff --git a/drivers/ufs/host/ufshcd-pltfrm.c b/drivers/ufs/host/ufshcd-pltfrm.c
index e7332cc65b1f..2dd9c660531b 100755
--- a/drivers/ufs/host/ufshcd-pltfrm.c
+++ b/drivers/ufs/host/ufshcd-pltfrm.c
@@ -109,8 +109,8 @@ static int ufshcd_parse_clock_info(struct ufs_hba *hba)
 }
 
 #define MAX_PROP_SIZE 32
-static int ufshcd_populate_vreg(struct device *dev, const char *name,
-		struct ufs_vreg **out_vreg)
+int ufshcd_populate_vreg(struct device *dev, const char *name,
+			 struct ufs_vreg **out_vreg)
 {
 	char prop_name[MAX_PROP_SIZE];
 	struct ufs_vreg *vreg = NULL;
@@ -145,6 +145,7 @@ static int ufshcd_populate_vreg(struct device *dev, const char *name,
 	*out_vreg = vreg;
 	return 0;
 }
+EXPORT_SYMBOL_GPL(ufshcd_populate_vreg);
 
 /**
  * ufshcd_parse_regulator_info - get regulator info from device tree
diff --git a/drivers/ufs/host/ufshcd-pltfrm.h b/drivers/ufs/host/ufshcd-pltfrm.h
index 43c2e412bd99..5130c9471dc2 100755
--- a/drivers/ufs/host/ufshcd-pltfrm.h
+++ b/drivers/ufs/host/ufshcd-pltfrm.h
@@ -32,5 +32,7 @@ void ufshcd_init_pwr_dev_param(struct ufs_dev_params *dev_param);
 int ufshcd_pltfrm_init(struct platform_device *pdev,
 		       const struct ufs_hba_variant_ops *vops);
 void ufshcd_pltfrm_shutdown(struct platform_device *pdev);
+int ufshcd_populate_vreg(struct device *dev, const char *name,
+			 struct ufs_vreg **out_vreg);
 
 #endif /* UFSHCD_PLTFRM_H_ */
diff --git a/include/ufs/ufshcd.h b/include/ufs/ufshcd.h
index aa778418703f..18eb253cfd91 100755
--- a/include/ufs/ufshcd.h
+++ b/include/ufs/ufshcd.h
@@ -1187,6 +1187,8 @@ void ufshcd_map_desc_id_to_length(struct ufs_hba *hba, enum desc_idn desc_id,
 
 u32 ufshcd_get_local_unipro_ver(struct ufs_hba *hba);
 
+int ufshcd_get_vreg(struct device *dev, struct ufs_vreg *vreg);
+
 int ufshcd_send_uic_cmd(struct ufs_hba *hba, struct uic_command *uic_cmd);
 
 int ufshcd_exec_raw_upiu_cmd(struct ufs_hba *hba,
-- 
2.18.0