linux-kernel - [PATCH V2 1/2] scsi: ufs: core: Export ufshcd_is_hba

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Message-Id: <20230726134140.7180-2-quic_nitirawa@quicinc.com>
Date:   Wed, 26 Jul 2023 19:11:39 +0530
From:   Nitin Rawat <quic_nitirawa@...cinc.com>
To:     powen.kao@...iatek.com, bvanassche@....org,
        alim.akhtar@...sung.com, adrian.hunter@...el.com,
        jejb@...ux.ibm.com, stanley.chu@...iatek.com,
        asutoshd@...eaurora.org, quic_cang@...cinc.com, mani@...nel.org,
        martin.petersen@...cle.com, beanhuo@...ron.com,
        ebiggers@...gle.com, agross@...nel.org, Arthur.Simchaev@....com,
        konrad.dybcio@...aro.org
Cc:     quic_ziqichen@...cinc.com, quic_nguyenb@...cinc.com,
        quic_narepall@...cinc.com, linux-scsi@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        Nitin Rawat <quic_nitirawa@...cinc.com>
Subject: [PATCH V2 1/2] scsi: ufs: core: Export ufshcd_is_hba_active

Export ufshcd_is_hba_active() to allow vendor driver modules
to check the state of host controller.

Signed-off-by: Nitin Rawat <quic_nitirawa@...cinc.com>
---
 drivers/ufs/core/ufshcd.c | 3 ++-
 include/ufs/ufshcd.h      | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c
index 983fae84d9e8..962aa5c1fe69 100644
--- a/drivers/ufs/core/ufshcd.c
+++ b/drivers/ufs/core/ufshcd.c
@@ -995,10 +995,11 @@ static inline void ufshcd_hba_start(struct ufs_hba *hba)
  *
  * Returns true if and only if the controller is active.
  */
-static inline bool ufshcd_is_hba_active(struct ufs_hba *hba)
+bool ufshcd_is_hba_active(struct ufs_hba *hba)
 {
 	return ufshcd_readl(hba, REG_CONTROLLER_ENABLE) & CONTROLLER_ENABLE;
 }
+EXPORT_SYMBOL_GPL(ufshcd_is_hba_active);

 u32 ufshcd_get_local_unipro_ver(struct ufs_hba *hba)
 {
diff --git a/include/ufs/ufshcd.h b/include/ufs/ufshcd.h
index 6dc11fa0ebb1..ef04c3363be8 100644
--- a/include/ufs/ufshcd.h
+++ b/include/ufs/ufshcd.h
@@ -1398,6 +1398,7 @@ int ufshcd_wb_toggle_buf_flush(struct ufs_hba *hba, bool enable);
 int ufshcd_suspend_prepare(struct device *dev);
 int __ufshcd_suspend_prepare(struct device *dev, bool rpm_ok_for_spm);
 void ufshcd_resume_complete(struct device *dev);
+bool ufshcd_is_hba_active(struct ufs_hba *hba);

 /* Wrapper functions for safely calling variant operations */
 static inline int ufshcd_vops_init(struct ufs_hba *hba)
--
2.17.1