From: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
To: Wolfram Sang <wsa+renesas@sang-engineering.com>,
"linux-mmc@vger.kernel.org" <linux-mmc@vger.kernel.org>
Cc: "linux-renesas-soc@vger.kernel.org" <linux-renesas-soc@vger.kernel.org>
Subject: RE: [PATCH v2 0/4] renesas_sdhi: fix hang when SCC loses its clock
Date: Wed, 2 Sep 2020 09:51:01 +0000 [thread overview]
Message-ID: <TY2PR01MB3692563894AD0A65B4AF37ACD82F0@TY2PR01MB3692.jpnprd01.prod.outlook.com> (raw)
In-Reply-To: <20200901150250.26236-1-wsa+renesas@sang-engineering.com>
Hello Wolfram-san,
> From: Wolfram Sang, Sent: Wednesday, September 2, 2020 12:03 AM
>
> This again took a while since v1 because the issue was so hard to
> trigger. But I finally found a way to inject the flaw, so this series
> could be tested and it fixes the issue.
>
> Changes since v1:
> * introduce a new flag to MMC core indicating any kind of tuning
> not only retune
> * use the new flag to keep SCC flag active
> * new patch 4, minor cleanup to MMC core
>
> A branch including the DEBUG patch can be found here:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git renesas/sdhi/new_manual_calib-for-5.10
>
> If you revert patch 3, you should have the SCC hang during boot again.
<snip>
>
> Tested on R-Car H3 ES2.0 and M3-N and patches based on mmc/next.
Thank you for the patch!
Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
And, I tested this series on R-Car H3 ES3.0 and M3-W+. And,
I confirmed this series could fix the SCC hang issue. So,
Tested-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Best regards,
Yoshihiro Shimoda
next prev parent reply other threads:[~2020-09-02 9:51 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-01 15:02 [PATCH v2 0/4] renesas_sdhi: fix hang when SCC loses its clock Wolfram Sang
2020-09-01 15:02 ` [PATCH v2 1/4] mmc: core: when downgrading HS400, callback into drivers earlier Wolfram Sang
2020-09-01 15:02 ` [PATCH v2 2/4] mmc: core: add a 'doing_init_tune' flag and a 'mmc_doing_tune' helper Wolfram Sang
2020-09-01 15:02 ` [PATCH v2 3/4] mmc: renesas_sdhi: keep SCC clock active when tuning Wolfram Sang
2020-09-01 15:02 ` [PATCH v2 4/4] mmc: core: simplify an expression Wolfram Sang
2020-09-02 9:51 ` Yoshihiro Shimoda [this message]
2020-09-03 8:10 ` [PATCH v2 0/4] renesas_sdhi: fix hang when SCC loses its clock Ulf Hansson
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