linux-kernel - Re: [PATCH v4 1/3] spi: add SPI_MOSI_IDLE

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Message-ID: <CAHp75VcP78MhmjzOCiGwfEwWwVxCHhy3qmZet0HqjPeLTc9h-A@mail.gmail.com>
Date:   Thu, 18 May 2023 13:57:30 +0300
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Börge Strümpfel <boerge.struempfel@...il.com>
Cc:     Fabio Estevam <festevam@...il.com>, bstruempfel@...ratronik.de,
        amit.kumar-mahapatra@....com, broonie@...nel.org,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        NXP Linux Team <linux-imx@....com>,
        linux-spi@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 1/3] spi: add SPI_MOSI_IDLE_LOW mode bit

On Thu, May 18, 2023 at 3:27 AM Börge Strümpfel
<boerge.struempfel@...il.com> wrote:
> Am Do., 18. Mai 2023 um 01:53 Uhr schrieb Fabio Estevam <festevam@...il.com>:

...


> Okay. I have begun to implement this. During this, I noticed, that if
> I called the new option
> "--mosi-idle-low", the alignment of the help-lines (and in the c code
> itself) would break.
> Should I therefore shorten the option name by using an abbreviation
> like "--mil", which is
> probably not very helpful as a "full option name", or should I touch
> all the other lines and
> insert necessary spaces, such that they are aligned once more? (And if
> so, should I do
> this in a seperate patch, preparing the addition of the new options?)

It's a user space tool where not so strict rules of commit splitting
apply (as far as I know), I would go with indention fixes in the same
patch that adds the option.

...

> > > While looking through the code, I noticed, that the latest two
> > > additions to the spi->mode
> > > (SPI_3WIRE_HIZ and SPI_RX_CPHA_FLIP) are also missing from this tool. Is this
> > > by design, or should they then be included as well?
> >
> > Looks like these two are missing and would be good to get them included as well.
>
> Okay. Should this be a separate patch, or should I add the support for
> all 3 mode bits in
> one commit?

Split them logically. Are they from the same group of bits? No? then split.

-- 
With Best Regards,
Andy Shevchenko