diff mbox series

[v5,1/7] scsi: ufs: avoid to call REQ_CLKS_OFF to CLKS_OFF

Message ID 20201117165839.1643377-2-jaegeuk@kernel.org (mailing list archive)
State Accepted
Headers show
Series scsi: ufs: add some fixes | expand

Commit Message

Jaegeuk Kim Nov. 17, 2020, 4:58 p.m. UTC 
Once UFS was gated with CLKS_OFF, it should not call REQ_CLKS_OFF again, which
caused hibern8_enter failure.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 drivers/scsi/ufs/ufshcd.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

Comments

Can Guo Nov. 18, 2020, 3:54 a.m. UTC | #1 
On 2020-11-18 00:58, Jaegeuk Kim wrote:
> Once UFS was gated with CLKS_OFF, it should not call REQ_CLKS_OFF 
> again, which
> caused hibern8_enter failure.
> 
> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

Reviewed-by: Can Guo <cang@codeaurora.org>

> ---
>  drivers/scsi/ufs/ufshcd.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
> index b8f573a02713..cc8d5f0c3fdc 100644
> --- a/drivers/scsi/ufs/ufshcd.c
> +++ b/drivers/scsi/ufs/ufshcd.c
> @@ -1745,7 +1745,8 @@ static void __ufshcd_release(struct ufs_hba *hba)
>  	if (hba->clk_gating.active_reqs || hba->clk_gating.is_suspended ||
>  	    hba->ufshcd_state != UFSHCD_STATE_OPERATIONAL ||
>  	    ufshcd_any_tag_in_use(hba) || hba->outstanding_tasks ||
> -	    hba->active_uic_cmd || hba->uic_async_done)
> +	    hba->active_uic_cmd || hba->uic_async_done ||
> +	    hba->clk_gating.state == CLKS_OFF)
>  		return;
> 
>  	hba->clk_gating.state = REQ_CLKS_OFF;
diff mbox series

Patch

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index b8f573a02713..cc8d5f0c3fdc 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -1745,7 +1745,8 @@  static void __ufshcd_release(struct ufs_hba *hba)
 	if (hba->clk_gating.active_reqs || hba->clk_gating.is_suspended ||
 	    hba->ufshcd_state != UFSHCD_STATE_OPERATIONAL ||
 	    ufshcd_any_tag_in_use(hba) || hba->outstanding_tasks ||
-	    hba->active_uic_cmd || hba->uic_async_done)
+	    hba->active_uic_cmd || hba->uic_async_done ||
+	    hba->clk_gating.state == CLKS_OFF)
 		return;
 
 	hba->clk_gating.state = REQ_CLKS_OFF;