From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail.andi.de1.cc (mail.andi.de1.cc [178.238.236.174]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8E7CB25F96B; Tue, 28 Oct 2025 19:42:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=178.238.236.174 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761680528; cv=none; b=FK+ELJtgHSyycsa+0eRiVv0Hv48cRkRwlHP4vej0ceaZ3WE2AgSuMsX3RTSNmEAcdnwa7PNuN3DSKwCfLVNccGKbJ7VkW8GyzAOE/z8kV/PlnDuw39KlRa2QI5LHjcOv2grwuXmVgJWKfsBAXeObDPDs+aV1QUB+r2VJ2MRrCAs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761680528; c=relaxed/simple; bh=OruuR1BSW+2DCU1NS3kcERy38fzdWVkeIH+j65bZtN4=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=DnM7ckSs/8S0do3Z37jtdk3399C1rfG+CLbqd5RsnBpCGxWjDHHp6/Jv7M980YcBj5YkdJDSln1pyKr+XrPx6794MCnBIspkPmYVIQ0BByk4R2abZzXHh0BwaxZWxT/YCGJ4sixWrbmWAeVrP7Q5qecz32BDgH9Ua+6ynxW3KAc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=kemnade.info; spf=pass smtp.mailfrom=kemnade.info; dkim=pass (2048-bit key) header.d=kemnade.info header.i=@kemnade.info header.b=jcsJ9MQR; arc=none smtp.client-ip=178.238.236.174 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=kemnade.info Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=kemnade.info Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kemnade.info header.i=@kemnade.info header.b="jcsJ9MQR" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=kemnade.info; s=20220719; h=References:In-Reply-To:Cc:From:Sender:Reply-To: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID; bh=SluxDs7DTABDqtpsTaBR0SYYH2qHC1+d6v/WpkmGwRk=; b=jcsJ9MQRK5rn7fNJ3he0WSjW7D OQJ5h1f66vmrqh8jiLca23wHA3l00awBFP+MEOISAq+FsgKjAcjRlLRtBevDCABiiA9FQEK84W+ZL MkbMBknQhielih+j5nwQiyFCrhR5JBk+wKEuu6wP+nisnguuDpKx81z82urAiwCsM4NZkqVAl+zlk aYi5uxyyTUXOmwQVwYVWXKoL2jYD4bFt/nfjXpqcmrdsnt2JLYfz6IoBK4eJVJEyC16u7l2jICaGO 6ASDlSkml31g+OibDZUY73Q9RI+CORxb37rnpPf5P2btezk17owAv3ZF+SPpS/8YDgLShSRqJwJqT vZKdoiag==; Date: Tue, 28 Oct 2025 20:41:49 +0100 From: Andreas Kemnade To: Conor Dooley Cc: Dmitry Torokhov , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Henrik Rydberg , Tony Lindgren , hns@goldelico.com, linux-input@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org Subject: Re: [PATCH RFC 1/3] dt-bindings: input: elan: Introduce Elan eKTP1059 Touchpad Message-ID: <20251028204149.325506f6@kemnade.info> In-Reply-To: <20250825-decal-purchase-8cfe0003a3f2@spud> References: <20250825-ektp-submit-v1-0-1dd476c1277b@kemnade.info> <20250825-ektp-submit-v1-1-1dd476c1277b@kemnade.info> <20250825-decal-purchase-8cfe0003a3f2@spud> X-Mailer: Claws Mail 4.3.1 (GTK 3.24.49; aarch64-unknown-linux-gnu) Precedence: bulk X-Mailing-List: linux-omap@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Mon, 25 Aug 2025 17:40:56 +0100 Conor Dooley wrote: > On Mon, Aug 25, 2025 at 12:07:28AM +0200, Andreas Kemnade wrote: > > The Elan eKTP1059 Touchpad is seen in the Epson Moverio BT-200 > > attached via SPI. Add a binding for this chip. Little is known. > > > > Signed-off-by: Andreas Kemnade > > --- > > .../devicetree/bindings/input/elan,ektp1059.yaml | 45 ++++++++++++++++++++++ > > 1 file changed, 45 insertions(+) > > > > diff --git a/Documentation/devicetree/bindings/input/elan,ektp1059.yaml b/Documentation/devicetree/bindings/input/elan,ektp1059.yaml > > new file mode 100644 > > index 000000000000..a10256a271e0 > > --- /dev/null > > +++ b/Documentation/devicetree/bindings/input/elan,ektp1059.yaml > > @@ -0,0 +1,45 @@ > > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > > +%YAML 1.2 > > +--- > > +$id: http://devicetree.org/schemas/input/elan,ektp1059.yaml# > > +$schema: http://devicetree.org/meta-schemas/core.yaml# > > + > > +title: Elantech SPI Touchpad > > + > > +maintainers: > > + - Andreas Kemnade > > + > > +allOf: > > + - $ref: touchscreen/touchscreen.yaml# > > + > > +properties: > > + compatible: > > + const: elan,ektp1059 > > + > > + reg: > > + maxItems: 1 > > + > > + interrupts: > > + maxItems: 1 > > + > > +required: > > + - compatible > > + - reg > > + - interrupts > > + > > +additionalProperties: false > > Shouldn't this be unevalutedProperties: false, since you want to make > use of what's in touchscreen.yaml? > did not do too much thought about this yet. But am I allowed to use this in a touchpad? BTW: who defines whether the chip is a touchpad? T*P* in its part number might be a hint, the device where I am using it, uses it as a touchpad. But who says it cannot be glued onto some screen? Regards, Andreas