From: Can Guo <cang@codeaurora.org>
To: Jaegeuk Kim <jaegeuk@kernel.org>
Cc: linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org,
kernel-team@android.com, alim.akhtar@samsung.com,
avri.altman@wdc.com, bvanassche@acm.org,
martin.petersen@oracle.com, stanley.chu@mediatek.com
Subject: Re: [PATCH v5 1/7] scsi: ufs: avoid to call REQ_CLKS_OFF to CLKS_OFF
Date: Wed, 18 Nov 2020 11:54:51 +0800
Message-ID: <9947ab24ad74d77b96e9f09523f25e1a@codeaurora.org> (raw)
In-Reply-To: <20201117165839.1643377-2-jaegeuk@kernel.org>
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;
next prev parent reply index
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-17 16:58 [PATCH v5 0/5] scsi: ufs: add some fixes Jaegeuk Kim
2020-11-17 16:58 ` [PATCH v5 1/7] scsi: ufs: avoid to call REQ_CLKS_OFF to CLKS_OFF Jaegeuk Kim
2020-11-18 3:54 ` Can Guo [this message]
2020-11-17 16:58 ` [PATCH v5 2/7] scsi: ufs: atomic update for clkgating_enable Jaegeuk Kim
2020-11-18 3:54 ` Can Guo
2020-11-17 16:58 ` [PATCH v5 3/7] scsi: ufs: clear UAC for FFU and RPMB LUNs Jaegeuk Kim
2020-11-17 16:58 ` [PATCH v5 4/7] scsi: ufs: use WQ_HIGHPRI for gating work Jaegeuk Kim
2020-11-17 16:58 ` [PATCH v5 5/7] scsi: add more contexts in the ufs tracepoints Jaegeuk Kim
2020-11-17 16:58 ` [PATCH v5 6/7] scsi: ufs: fix clkgating on/off correctly Jaegeuk Kim
2020-11-17 16:58 ` [PATCH v5 7/7] scsi: ufs: show lba and length for unmap commands Jaegeuk Kim
2020-11-18 1:11 ` Can Guo
2020-11-20 3:01 ` [PATCH v5 0/5] scsi: ufs: add some fixes Martin K. Petersen
2020-11-24 3:58 ` Martin K. Petersen
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