linux-kernel - Re: Regression in Linux next with SPI pump changes

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Date:   Wed, 23 Jan 2019 16:11:37 -0800
From:   Tony Lindgren <tony@...mide.com>
To:     Martin Sperl <kernel@...tin.sperl.org>,
        Mark Brown <broonie@...nel.org>
Cc:     Stephen Rothwell <sfr@...b.auug.org.au>,
        Jon Hunter <jonathanh@...dia.com>, linux-spi@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-omap@...r.kernel.org
Subject: Re: Regression in Linux next with SPI pump changes

* Tony Lindgren <tony@...mide.com> [190123 21:57]:
> Hi all,
> 
> Commit 412e60373245 ("spi: core: avoid waking pump thread from spi_sync
> instead run teardown delayed") caused a PM regression in Linux next
> where a SPI device (drivers/spi/spi-omap2-mcspi.c) no longer idles
> for PM runtime.
> 
> Looks like this also breaks suspend as reported at [0].

Oh and looks like Jon already also came to the conclusion
that PM runtime is now broken at [1]. Sorry forgot to add
Jon to Cc earlier, added now.

Regards,

Tony


[0] https://www.mail-archive.com/linux-kernel@vger.kernel.org/msg1899265.html
[1] https://www.mail-archive.com/linux-kernel@vger.kernel.org/msg1901285.html