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Sun, 10 May 2026 08:29:40 -0700 (PDT) Sender: Guenter Roeck Date: Sun, 10 May 2026 08:29:39 -0700 From: Guenter Roeck To: Janne Grunau Cc: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Lorenzo Pieralisi , Sven Peter , Neal Gompa , Wim Van Sebroeck , Mark Kettenis , Sasha Finkelstein , Uwe =?iso-8859-1?Q?Kleine-K=F6nig?= , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, asahi@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-watchdog@vger.kernel.org, linux-pwm@vger.kernel.org, Joshua Peisach Subject: Re: [PATCH v3 2/5] dt-bindings: watchdog: apple,wdt: Add t8122 compatible Message-ID: <85ea46a7-1136-4ea0-9eec-7dfa465df20b@roeck-us.net> References: <20260507-apple-m3-initial-devicetrees-v3-0-ca07c81b5dc7@jannau.net> <20260507-apple-m3-initial-devicetrees-v3-2-ca07c81b5dc7@jannau.net> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260507-apple-m3-initial-devicetrees-v3-2-ca07c81b5dc7@jannau.net> On Thu, May 07, 2026 at 09:33:08AM +0200, Janne Grunau wrote: > The watchdog on the Apple silicon t8122 (M3) SoC is compatible with the > existing driver. Add "apple,t8122-wdt" as SoC specific compatible under > "apple,t8103-wdt" used by the driver. '"apple,t8103-wdt" used by the driver' is not true. The watchdog driver only supports "apple,wdt". > > Acked-by: Rob Herring (Arm) > Reviewed-by: Joshua Peisach > Reviewed-by: Neal Gompa > Signed-off-by: Janne Grunau > --- > Documentation/devicetree/bindings/watchdog/apple,wdt.yaml | 4 +++- > 1 file changed, 3 insertions(+), 1 deletion(-) > > diff --git a/Documentation/devicetree/bindings/watchdog/apple,wdt.yaml b/Documentation/devicetree/bindings/watchdog/apple,wdt.yaml > index 05602678c070..845b5e8b5abc 100644 > --- a/Documentation/devicetree/bindings/watchdog/apple,wdt.yaml > +++ b/Documentation/devicetree/bindings/watchdog/apple,wdt.yaml > @@ -16,7 +16,9 @@ properties: > compatible: > oneOf: > - items: > - - const: apple,t6020-wdt > + - enum: > + - apple,t6020-wdt > + - apple,t8122-wdt > - const: apple,t8103-wdt > - items: > - enum: I second Sashiko's findings that the driver will fail to bind because it only supports "apple,wdt". I would not mind and apply the patch anyway, but the statement in the description is just plain wrong and thus misleading. Please fix. Thanks, Guenter