linux-kernel - Re: [PATCH v2 5/5] iio: adc: ad7380: use spi_optimize

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Message-ID: <CAMknhBGZkCx1HT1pzNHAgOCSvA3U7a6_P7DdDibfawziih_PwA@mail.gmail.com>
Date: Tue, 27 Feb 2024 10:36:07 -0600
From: David Lechner <dlechner@...libre.com>
To: Jonathan Cameron <jic23@...nel.org>
Cc: Mark Brown <broonie@...nel.org>, Martin Sperl <kernel@...tin.sperl.org>, 
	David Jander <david@...tonic.nl>, Michael Hennerich <michael.hennerich@...log.com>, 
	Nuno Sá <nuno.sa@...log.com>, 
	Alain Volmat <alain.volmat@...s.st.com>, Maxime Coquelin <mcoquelin.stm32@...il.com>, 
	Alexandre Torgue <alexandre.torgue@...s.st.com>, linux-spi@...r.kernel.org, 
	linux-kernel@...r.kernel.org, linux-stm32@...md-mailman.stormreply.com, 
	linux-arm-kernel@...ts.infradead.org, linux-iio@...r.kernel.org, 
	Julien Stephan <jstephan@...libre.com>
Subject: Re: [PATCH v2 5/5] iio: adc: ad7380: use spi_optimize_message()

On Sat, Feb 24, 2024 at 10:57 AM Jonathan Cameron <jic23@...nel.org> wrote:
>
> On Mon, 19 Feb 2024 16:33:22 -0600
> David Lechner <dlechner@...libre.com> wrote:
>
> > This modifies the ad7380 ADC driver to use spi_optimize_message() to
> > optimize the SPI message for the buffered read operation. Since buffered
> > reads reuse the same SPI message for each read, this can improve
> > performance by reducing the overhead of setting up some parts the SPI
> > message in each spi_sync() call.
> >
> > Signed-off-by: David Lechner <dlechner@...libre.com>
> Looks good to me.
>
> As this is the driver you asked me to drop earlier this cycle,
> how do we plan to merge this series?
>
> If Mark is fine taking 1-4 with the user following along that's
> fine by me, if not I guess we are in immutable tree territory for
> next cycle?

I've been out sick for a week so trying to get back up to speed here.
It looks like Mark has picked up the spi changes, so that part is
resolved. I'll work on getting the ad7380 driver resubmitted, then we
can come back to this patch after 6.9-rc1 (assuming the SPI changes
make it in to 3.9 of course).