linux-kernel - Re: [RFC PATCH 03/15] spi: make `cs_change_delay` the first user of the `spi

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Date:   Mon, 16 Sep 2019 13:04:42 +0000
From:   "Ardelean, Alexandru" <alexandru.Ardelean@...log.com>
To:     "broonie@...nel.org" <broonie@...nel.org>
CC:     "linux-spi@...r.kernel.org" <linux-spi@...r.kernel.org>,
        "baolin.wang@...aro.org" <baolin.wang@...aro.org>,
        "bcm-kernel-feedback-list@...adcom.com" 
        <bcm-kernel-feedback-list@...adcom.com>,
        "linux-iio@...r.kernel.org" <linux-iio@...r.kernel.org>,
        "linux-tegra@...r.kernel.org" <linux-tegra@...r.kernel.org>,
        "linus.walleij@...aro.org" <linus.walleij@...aro.org>,
        "jic23@...nel.org" <jic23@...nel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "f.fainelli@...il.com" <f.fainelli@...il.com>,
        "orsonzhai@...il.com" <orsonzhai@...il.com>,
        "zhang.lyra@...il.com" <zhang.lyra@...il.com>
Subject: Re: [RFC PATCH 03/15] spi: make `cs_change_delay` the first user of
 the `spi_delay` logic

On Mon, 2019-09-16 at 13:47 +0100, Mark Brown wrote:
> [External]
> 
> On Mon, Sep 16, 2019 at 12:37:12PM +0000, Ardelean, Alexandru wrote:
> 
> > > This breaks the build as there is a user of this interface.
> > Ack.
> > Jonathan pointed this out.
> > There's a V3 that changes both this and it's user (in IIO).
> 
> That v3 seems to be a small subset of this series?

Ack.
V3 is the first 4 patches from this series.
Well, patches 3 & 4 are squashed.

I am 100% convinced that the entire series is a good idea.
In the sense that a `struct spi_delay` may be a good idea, but at the same time, it may be un-needed.

All I wanted to do, was to add another delay somewhere, and got lost in the rework of current delays.
I thought about proposing just the first 4 patches [on their own], but I thought that showing the current series as-is
now, may be a good idea as well [to gather some feedback].