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From: "Bean Huo (beanhuo)" <beanhuo@micron.com>
To: Can Guo <cang@codeaurora.org>,
	"asutoshd@codeaurora.org" <asutoshd@codeaurora.org>,
	"nguyenb@codeaurora.org" <nguyenb@codeaurora.org>,
	"hongwus@codeaurora.org" <hongwus@codeaurora.org>,
	"rnayak@codeaurora.org" <rnayak@codeaurora.org>,
	"linux-scsi@vger.kernel.org" <linux-scsi@vger.kernel.org>,
	"kernel-team@android.com" <kernel-team@android.com>,
	"saravanak@google.com" <saravanak@google.com>,
	"salyzyn@google.com" <salyzyn@google.com>
Cc: Alim Akhtar <alim.akhtar@samsung.com>,
	Avri Altman <avri.altman@wdc.com>,
	Pedro Sousa <pedrom.sousa@synopsys.com>,
	"James E.J. Bottomley" <jejb@linux.ibm.com>,
	"Martin K. Petersen" <martin.petersen@oracle.com>,
	Tomas Winkler <tomas.winkler@intel.com>,
	Stanley Chu <stanley.chu@mediatek.com>,
	Venkat Gopalakrishnan <venkatg@codeaurora.org>,
	open list <linux-kernel@vger.kernel.org>
Subject: RE: [EXT] [PATCH v4 6/8] scsi: ufs: Add dev ref clock gating wait time support
Date: Thu, 23 Jan 2020 23:11:26 +0000	[thread overview]
Message-ID: <BN7PR08MB568451D6C66F4C6FB11E6EEBDB0F0@BN7PR08MB5684.namprd08.prod.outlook.com> (raw)
In-Reply-To: <1579764349-15578-7-git-send-email-cang@codeaurora.org>

Hi,  Can

> 
> In UFS version 3.0, a newly added attribute bRefClkGatingWaitTime defines the
> minimum time for which the reference clock is required by device during
> transition to LS-MODE or HIBERN8 state. Make this change to reflect the new
> requirement by adding delays before turning off the clock.
> 
> Signed-off-by: Can Guo <cang@codeaurora.org>
> ---
>  drivers/scsi/ufs/ufs.h    |  3 +++
>  drivers/scsi/ufs/ufshcd.c | 41
> +++++++++++++++++++++++++++++++++++++++++
>  2 files changed, 44 insertions(+)
> 
> diff --git a/drivers/scsi/ufs/ufs.h b/drivers/scsi/ufs/ufs.h index
> 3327981..385bac8 100644
> --- a/drivers/scsi/ufs/ufs.h
> +++ b/drivers/scsi/ufs/ufs.h
> @@ -168,6 +168,7 @@ enum attr_idn {
>  	QUERY_ATTR_IDN_FFU_STATUS		= 0x14,
>  	QUERY_ATTR_IDN_PSA_STATE		= 0x15,
>  	QUERY_ATTR_IDN_PSA_DATA_SIZE		= 0x16,
> +	QUERY_ATTR_IDN_REF_CLK_GATING_WAIT_TIME	= 0x17,
>  };
> 
>  /* Descriptor idn for Query requests */ @@ -530,6 +531,8 @@ struct
> ufs_dev_info {
>  	bool f_power_on_wp_en;
>  	/* Keeps information if any of the LU is power on write protected */
>  	bool is_lu_power_on_wp;
> +	u16 spec_version;
> +	u32 clk_gating_wait_us;
>  };
> 
This one also need rebase

Thanks,

//Bean

  reply	other threads:[~2020-01-23 23:11 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-23  7:25 [PATCH v4 0/8] UFS driver general fixes bundle 4 Can Guo
2020-01-23  7:25 ` [PATCH v4 1/8] scsi: ufs: Flush exception event before suspend Can Guo
2020-01-23 23:09   ` [EXT] " Bean Huo (beanhuo)
2020-01-26  3:29   ` Bart Van Assche
2020-02-03  6:23     ` Can Guo
2020-02-04  3:12       ` Bart Van Assche
2020-02-04  6:28         ` Can Guo
2020-01-23  7:25 ` [PATCH v4 2/8] scsi: ufs: set load before setting voltage in regulators Can Guo
2020-01-23  7:50   ` hongwus
2020-01-23  7:25 ` [PATCH v4 3/8] scsi: ufs: Remove the check before call setup clock notify vops Can Guo
2020-01-23  7:25 ` [PATCH v4 4/8] scsi: ufs-qcom: Adjust bus bandwidth voting and unvoting Can Guo
2020-01-23  7:25 ` [PATCH v4 5/8] scsi: ufs: Fix ufshcd_hold() caused scheduling while atomic Can Guo
2020-01-24 18:07   ` Asutosh Das (asd)
2020-01-23  7:25 ` [PATCH v4 6/8] scsi: ufs: Add dev ref clock gating wait time support Can Guo
2020-01-23 23:11   ` Bean Huo (beanhuo) [this message]
2020-02-03  7:17     ` [EXT] " Can Guo
2020-01-24 18:06   ` Asutosh Das (asd)
2020-01-26  3:34   ` Bart Van Assche
2020-02-03  7:16     ` Can Guo
2020-02-03 22:30       ` Bart Van Assche
2020-01-23  7:25 ` [PATCH v4 7/8] scsi: ufs-qcom: Delay specific time before gate ref clk Can Guo
2020-01-24 18:04   ` Asutosh Das (asd)
2020-01-23  7:25 ` [PATCH v4 8/8] scsi: ufs: Select INITIAL adapt for HS Gear4 Can Guo
2020-01-24 18:03   ` Asutosh Das (asd)
2020-01-26  3:38   ` Bart Van Assche

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