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From: Can Guo <cang@codeaurora.org>
To: "Bean Huo (beanhuo)" <beanhuo@micron.com>
Cc: asutoshd@codeaurora.org, nguyenb@codeaurora.org,
	hongwus@codeaurora.org, rnayak@codeaurora.org,
	linux-scsi@vger.kernel.org, kernel-team@android.com,
	saravanak@google.com, salyzyn@google.com,
	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: Mon, 03 Feb 2020 15:17:21 +0800	[thread overview]
Message-ID: <b263ce1549ef4a6e1a0659f2fa0165e1@codeaurora.org> (raw)
In-Reply-To: <BN7PR08MB568451D6C66F4C6FB11E6EEBDB0F0@BN7PR08MB5684.namprd08.prod.outlook.com>

On 2020-01-24 07:11, Bean Huo (beanhuo) wrote:
> 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

Shall rebase this series.

Thanks,

Can Guo

  reply	other threads:[~2020-02-03  7:17 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <1579764349-15578-1-git-send-email-cang@codeaurora.org>
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   ` [EXT] " Bean Huo (beanhuo)
2020-02-03  7:17     ` Can Guo [this message]
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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