From: Frank Rowand <frowand.list@gmail.com>
To: "Geert Uytterhoeven" <geert@linux-m68k.org>,
"Uwe Kleine-König" <uwe@kleine-koenig.org>,
"Frank Rowand" <frowand.list@gmail.com>
Cc: DTML <devicetree@vger.kernel.org>,
Michal Marek <michal.lkml@markovi.net>,
Arnd Bergmann <arnd@arndb.de>,
Linux Kbuild mailing list <linux-kbuild@vger.kernel.org>,
Masahiro Yamada <masahiroy@kernel.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Maxime Ripard <mripard@kernel.org>,
cyril@debamax.com,
linux-arm-kernel <linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH] cmd_dtc: Enable generation of device tree symbols
Date: Tue, 26 Jan 2021 12:03:56 -0600 [thread overview]
Message-ID: <1e713129-db54-64c3-59e3-fc0dba0e0f19@gmail.com> (raw)
In-Reply-To: <CAMuHMdUmtMxucQ9DWvROVPVv2uGEzpRmtv1=jrjm09xU=gHHyw@mail.gmail.com>
+frank
On 1/26/21 2:43 AM, Geert Uytterhoeven wrote:
> Hi Uwe,
>
> On Tue, Jan 26, 2021 at 8:21 AM Uwe Kleine-König <uwe@kleine-koenig.org> wrote:
>> And then I learned with hints from Rob and Geert that symbols are not
>> really necessary for overlays, you just cannot use named labels. But
>> using
>>
>> target-path = "/soc/i2c@23473245";
>>
>> or
>>
>> target = <&{/soc/i2c@23473245}>;
>>
>> instead of
>>
>> target = <&i2c1>;
>>
>> works fine. (And if you need to add a phandle the &{/path/to/node}
>> construct should work, too (but I didn't test).) Using labels is a tad
>> nicer, but the problem I wanted to address with my patch now has a known
>> different solution.
>
> Please don't use "target" and "target-path". Since the introduction of
> sugar syntax support in v4.15[1], you can just use "&label", like in a normal
> DTS file. Paths do need the special "&{/path/to/node}" syntax instead
> of "/path/to/node", though.
>
> As usual, you can find lots of examples of DT overlays in my repo[2].
>
> [1] commit 4201d057ea91c3d6 ("scripts/dtc: Update to upstream version
> v1.4.5-3-gb1a60033c110")
> [2] https://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers.git/log/?h=topic/renesas-overlays
>
> Gr{oetje,eeting}s,
>
> Geert
>
next prev parent reply other threads:[~2021-01-26 18:20 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-25 10:57 [PATCH] cmd_dtc: Enable generation of device tree symbols Uwe Kleine-König
2021-01-25 11:15 ` Cyril Brulebois
2021-01-26 18:01 ` Frank Rowand
2021-01-25 21:53 ` Masahiro Yamada
2021-01-26 7:20 ` Uwe Kleine-König
2021-01-26 8:43 ` Geert Uytterhoeven
2021-01-26 18:03 ` Frank Rowand [this message]
2021-01-26 13:42 ` Rob Herring
2021-01-26 18:03 ` Frank Rowand
2021-01-26 18:26 ` Frank Rowand
2021-01-26 18:02 ` Frank Rowand
2021-01-26 18:01 ` Frank Rowand
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