linux-spi.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Shawn Guo <shawnguo@kernel.org>
To: Vladimir Oltean <olteanv@gmail.com>
Cc: Mark Brown <broonie@kernel.org>,
	linux-spi@vger.kernel.org, lkml <linux-kernel@vger.kernel.org>,
	Rob Herring <robh+dt@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	devicetree@vger.kernel.org, Esben Haabendal <eha@deif.com>,
	angelo@sysam.it, andrew.smirnov@gmail.com,
	"Gustavo A. R. Silva" <gustavo@embeddedor.com>,
	Wei Chen <weic@nvidia.com>, Mohamed Hosny <mhosny@nvidia.com>,
	Michael Walle <michael@walle.cc>,
	peng.ma@nxp.com
Subject: Re: [PATCH v5 12/12] arm64: dts: ls1028a-rdb: Add a spidev node for the mikroBUS
Date: Tue, 21 Apr 2020 11:00:35 +0800	[thread overview]
Message-ID: <20200421030034.GA8571@dragon> (raw)
In-Reply-To: <CA+h21hrfwJ7LMjj=sy7LG3D-FFhVSRuM5TwqfX9LvW4XKarUWA@mail.gmail.com>

On Mon, Apr 20, 2020 at 06:10:35PM +0300, Vladimir Oltean wrote:
> On Mon, 20 Apr 2020 at 17:38, Shawn Guo <shawnguo@kernel.org> wrote:
> >
> > On Wed, Mar 18, 2020 at 02:16:03AM +0200, Vladimir Oltean wrote:
> > > From: Vladimir Oltean <vladimir.oltean@nxp.com>
> > >
> > > For debugging, it is useful to have access to the DSPI controller
> > > signals. On the reference design board, these are exported to either the
> > > mikroBUS1 or mikroBUS2 connector (according to the CPLD register
> > > BRDCFG3[SPI3]).
> > >
> > > Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
> > > ---
> > > Changes in v5:
> > > None.
> > >
> > > Changes in v4:
> > > None.
> > >
> > > Changes in v3:
> > > None.
> > >
> > > Changes in v2:
> > > Change compatible string for spidev node.
> > >
> > >  arch/arm64/boot/dts/freescale/fsl-ls1028a-rdb.dts | 14 ++++++++++++++
> > >  1 file changed, 14 insertions(+)
> > >
> > > diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a-rdb.dts b/arch/arm64/boot/dts/freescale/fsl-ls1028a-rdb.dts
> > > index 6d05b76c2c7a..0d27b5667b8c 100644
> > > --- a/arch/arm64/boot/dts/freescale/fsl-ls1028a-rdb.dts
> > > +++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a-rdb.dts
> > > @@ -83,6 +83,20 @@
> > >       };
> > >  };
> > >
> > > +&dspi2 {
> > > +     bus-num = <2>;
> > > +     status = "okay";
> > > +
> > > +     /* mikroBUS1 */
> > > +     spidev@0 {
> > > +             compatible = "rohm,dh2228fv";
> >
> > Is the compatible documented?
> >
> > Shawn
> >
> > > +             spi-max-frequency = <20000000>;
> > > +             fsl,spi-cs-sck-delay = <100>;
> > > +             fsl,spi-sck-cs-delay = <100>;
> > > +             reg = <0>;
> > > +     };
> > > +};
> > > +
> > >  &esdhc {
> > >       sd-uhs-sdr104;
> > >       sd-uhs-sdr50;
> > > --
> > > 2.17.1
> > >
> 
> I don't really know what's the status with spidev compatibles. I do
> see other device trees are using this one, I thought it should be
> fine.

My understanding is that every compatible needs to be documented.

Shawn

  reply	other threads:[~2020-04-21  3:00 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-18  0:15 [PATCH v5 00/12] NXP DSPI bugfixes and support for LS1028A Vladimir Oltean
2020-03-18  0:15 ` [PATCH v5 06/12] spi: spi-fsl-dspi: Replace interruptible wait queue with a simple completion Vladimir Oltean
     [not found] ` <20200318001603.9650-1-olteanv-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2020-03-18  0:15   ` [PATCH v5 01/12] spi: spi-fsl-dspi: Don't access reserved fields in SPI_MCR Vladimir Oltean
2020-03-18  0:15   ` [PATCH v5 02/12] spi: spi-fsl-dspi: Fix little endian access to PUSHR CMD and TXDATA Vladimir Oltean
2020-03-18  0:15   ` [PATCH v5 03/12] spi: spi-fsl-dspi: Fix bits-per-word acceleration in DMA mode Vladimir Oltean
2020-03-18  0:15   ` [PATCH v5 04/12] spi: spi-fsl-dspi: Avoid reading more data than written in EOQ mode Vladimir Oltean
2020-03-18  0:15   ` [PATCH v5 05/12] spi: spi-fsl-dspi: Protect against races on dspi->words_in_flight Vladimir Oltean
     [not found]     ` <20200318001603.9650-6-olteanv-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2020-03-18 22:45       ` Applied "spi: spi-fsl-dspi: Protect against races on dspi->words_in_flight" to the spi tree Mark Brown
2020-03-18  0:15   ` [PATCH v5 07/12] spi: spi-fsl-dspi: Avoid NULL pointer in dspi_slave_abort for non-DMA mode Vladimir Oltean
2020-03-18  0:16   ` [PATCH v5 09/12] spi: spi-fsl-dspi: Move invariant configs out of dspi_transfer_one_message Vladimir Oltean
2020-03-18  0:16   ` [PATCH v5 12/12] arm64: dts: ls1028a-rdb: Add a spidev node for the mikroBUS Vladimir Oltean
2020-04-20 14:38     ` Shawn Guo
2020-04-20 15:10       ` Vladimir Oltean
2020-04-21  3:00         ` Shawn Guo [this message]
2020-04-20 18:06     ` Geert Uytterhoeven
2020-04-20 18:10       ` Vladimir Oltean
2020-03-18 19:03   ` [PATCH v5 00/12] NXP DSPI bugfixes and support for LS1028A Michael Walle
     [not found]     ` <d37b6e0f8a35ae61bbfe147cd5809ec2-QKn5cuLxLXY@public.gmane.org>
2020-03-18 19:05       ` Vladimir Oltean
2020-03-18  0:15 ` [PATCH v5 08/12] spi: spi-fsl-dspi: Fix interrupt-less DMA mode taking an XSPI code path Vladimir Oltean
2020-03-18  0:16 ` [PATCH v5 10/12] spi: spi-fsl-dspi: Add support for LS1028A Vladimir Oltean
2020-03-18  0:16 ` [PATCH v5 11/12] arm64: dts: ls1028a: Specify the DMA channels for the DSPI controllers Vladimir Oltean
2020-04-20 14:36   ` Shawn Guo

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20200421030034.GA8571@dragon \
    --to=shawnguo@kernel.org \
    --cc=andrew.smirnov@gmail.com \
    --cc=angelo@sysam.it \
    --cc=broonie@kernel.org \
    --cc=devicetree@vger.kernel.org \
    --cc=eha@deif.com \
    --cc=gustavo@embeddedor.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-spi@vger.kernel.org \
    --cc=mark.rutland@arm.com \
    --cc=mhosny@nvidia.com \
    --cc=michael@walle.cc \
    --cc=olteanv@gmail.com \
    --cc=peng.ma@nxp.com \
    --cc=robh+dt@kernel.org \
    --cc=weic@nvidia.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).