From: Adrien Thierry <athierry@redhat.com>
To: Bart Van Assche <bvanassche@acm.org>
Cc: Alim Akhtar <alim.akhtar@samsung.com>,
Avri Altman <avri.altman@wdc.com>,
"James E.J. Bottomley" <jejb@linux.ibm.com>,
"Martin K. Petersen" <martin.petersen@oracle.com>,
linux-scsi@vger.kernel.org
Subject: Re: [PATCH] scsi: ufs: probe hba and add lus synchronously
Date: Fri, 3 Feb 2023 16:12:42 -0500 [thread overview]
Message-ID: <Y914yu4rSqvpSoRZ@fedora> (raw)
In-Reply-To: <90e4fb52-6b09-00d9-7591-7140b859ed15@acm.org>
> Are all UFS users using the devfreq framework? Otherwise this sounds good to me.
The warning originates from the UFS core :
ufshcd_init() -> ufshcd_async_scan() -> ufshcd_add_lus() ->
ufshcd_devfreq_init()
ufshcd_devfreq_init() is called as long as
ufshcd_is_clkscaling_supported(hba) returns true, i.e.
UFSHCD_CAP_CLK_SCALING is set. This is not the case for all UFS users, but
it could potentially be if they start supporting clock scaling. Moreover,
in the current Kconfigs, DEVFREQ_GOV_SIMPLE_ONDEMAND is already selected
when SCSI_UFSHCD is enabled. We just need to force it to be builtin.
Best,
Adrien
next prev parent reply other threads:[~2023-02-03 21:13 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-02 18:21 [PATCH] scsi: ufs: probe hba and add lus synchronously Adrien Thierry
2023-02-02 18:27 ` Bart Van Assche
2023-02-03 20:40 ` Adrien Thierry
2023-02-03 20:53 ` Bart Van Assche
2023-02-03 21:12 ` Adrien Thierry [this message]
2023-02-07 22:54 ` Adrien Thierry
2023-02-07 23:11 ` Bart Van Assche
2023-02-15 13:52 ` Adrien Thierry
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