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FROMGIT: scsi: ufs: core: Export ufshcd_hba_stop()

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Export ufshcd_hba_stop() to allow vendors to disable HCI in variant ops.

Bug: 191731858
Change-Id: I301836f74444a4def4483ae4a1c2105839a9ec85
(cherry picked from commit 3a95f5b392543498c638610a3096bb0f9aa56c7a
git://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git for-next)
Link: https://lore.kernel.org/r/20210528033624.12170-2-alice.chao@mediatek.com
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Alice.Chao <alice.chao@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
This commit is contained in:
Alice.Chao
2021-05-28 11:36:21 +08:00
committed by Stanley Chu
parent 91843b55b4
commit 0f44c7edbc
2 changed files with 3 additions and 1 deletions
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3
drivers/scsi/ufs/ufshcd.c
View File

@@ -4474,7 +4474,7 @@ EXPORT_SYMBOL_GPL(ufshcd_make_hba_operational);
* ufshcd_hba_stop - Send controller to reset state * ufshcd_hba_stop - Send controller to reset state
* @hba: per adapter instance * @hba: per adapter instance
*/ */
static inline void ufshcd_hba_stop(struct ufs_hba *hba) void ufshcd_hba_stop(struct ufs_hba *hba)
{ {
unsigned long flags; unsigned long flags;
int err; int err;
@@ -4493,6 +4493,7 @@ static inline void ufshcd_hba_stop(struct ufs_hba *hba)
if (err) if (err)
dev_err(hba->dev, "%s: Controller disable failed\n", __func__); dev_err(hba->dev, "%s: Controller disable failed\n", __func__);
} }
EXPORT_SYMBOL_GPL(ufshcd_hba_stop);
/** /**
* ufshcd_hba_execute_hce - initialize the controller * ufshcd_hba_execute_hce - initialize the controller

1
drivers/scsi/ufs/ufshcd.h
View File

@@ -975,6 +975,7 @@ int ufshcd_wait_for_register(struct ufs_hba *hba, u32 reg, u32 mask,
unsigned long timeout_ms); unsigned long timeout_ms);
void ufshcd_parse_dev_ref_clk_freq(struct ufs_hba *hba, struct clk *refclk); void ufshcd_parse_dev_ref_clk_freq(struct ufs_hba *hba, struct clk *refclk);
void ufshcd_update_evt_hist(struct ufs_hba *hba, u32 id, u32 val); void ufshcd_update_evt_hist(struct ufs_hba *hba, u32 id, u32 val);
void ufshcd_hba_stop(struct ufs_hba *hba);
static inline void check_upiu_size(void) static inline void check_upiu_size(void)
{ {