linux-kernel - Re: [PATCH 1/1] spi-sun6i: Fix chipselect/clock bug

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Date:   Fri, 21 May 2021 22:16:44 +0200
From:   Ralf Schlatterbeck <rsc@...tux.com>
To:     Andre Przywara <andre.przywara@....com>
Cc:     Mark Brown <broonie@...nel.org>,
        Maxime Ripard <mripard@...nel.org>,
        Chen-Yu Tsai <wens@...e.org>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        linux-spi@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-sunxi@...ts.linux.dev, linux-kernel@...r.kernel.org,
        Mirko Vogt <mirko-dev|linux@...l.de>
Subject: Re: [PATCH 1/1] spi-sun6i: Fix chipselect/clock bug

On Fri, May 21, 2021 at 05:30:11PM +0100, Andre Przywara wrote:
> On Thu, 20 May 2021 12:06:56 +0200
> Ralf Schlatterbeck <rsc@...tux.com> wrote:
> So if I get your last email correctly, your intention was to make this
> Mirko's patch, which you just send?

Yes.

> In this case the authorship should stay with him (git commit --amend
> --author "..."), and you add your S-o-b (his first, your's next).
> If you use git format-patch & git send-email, it will take care of
> formatting this correctly (inserting a "From" line into the body).

I was using format-patch but editing the result. Would a 'Date' line in
the body also be OK? The patch is really from 2019...

I have it correctly in my git but was unaware that additional header
lines in the body are ok.

> One formatting thing below:
> >  	sun6i_spi_write(sspi, SUN6I_CLK_CTL_REG, reg);
> > +	/* Finally enable the bus - doing so before might raise SCK to HIGH */
> > +	sun6i_spi_write(sspi, SUN6I_GBL_CTL_REG,
> > +			sun6i_spi_read(sspi, SUN6I_GBL_CTL_REG)
> > +			| SUN6I_GBL_CTL_BUS_ENABLE);
> 
> The "|" on the new line looks a bit odd. What about you utilise "reg"
> here, as the other access do, to make this more readable?
> 	reg = sun6i_spi_read(...);
> 	reg |= ...
> 	sun6i_spi_write(..., reg);

I've fixed this and will resubmit.

Thanks,
Ralf