From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 618693148C5; Mon, 8 Jun 2026 10:27:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780914479; cv=none; b=OVg0RvQUJFScMFZkcvI8IcC/H5xkDUZf20FeKdDPTFf6ci4kQP3fBL3hMiwpB11f7cGzHdT6YbetAxW5uKyH6aiDjgIdiJ56Klil/H4w3OQytffgmt4Cp2m+3Am78sXIvRawowtekEnxJcZJ5x658EzyHfUYbRmmMjMuIly0p4o= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780914479; c=relaxed/simple; bh=GKz3mt5ASiHP0LOj/cTVhMIUUhoOQRuHnlAYso30/2Y=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=HE+B0/L/nCt6sKW8MJ+C/l43YZCzu+XTCQCy2TFL6u/1ncEhMDYW2EWBWYZlzmSeyysguFbHArThxpRGcm/P7mOJvw/CzLnM3hL9+9+Va5EitnRTJq0MGIMs9BmpH8KPvl1g408tBn7pn60vP82SphM2YMthQAUGIFFLBNmekSs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=CaOBTIqC; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="CaOBTIqC" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 15EF01F00893; Mon, 8 Jun 2026 10:27:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1780914478; bh=wfs3rcPBNb033TIU8tcuziHt29xgmyYpwBKEJ4uT5yM=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=CaOBTIqCDS3Q3IedCquU4mE941UX0zNuCUbFHK6due4658TjeBWUAFUysm9jWdqXY hlMlSDDcvdQ52KNhwmkP0xxC8UCL6S0jUy9S7ZsWph2HqDQ7H6aGqcFGTDMKmDZGGU W9zEo5B8B8qBJjojeND933Iac0mfca+xtnVLsJ7ikqdixSL1HtcESSNZJQ0wPmwpOV LJvdnbCaRt5UJTzfbVL/jqlyrY5zx0Bw7V2NzAFPwDNRdqJyU5/NA+VOiup0blczgw uJmbnIliKfbF7dwpX7ZpqBXybyOZp0VsKEF5f/rxugtMAMN4p06pgfiYhQMYvcJGCy B2e66/qecpfQg== Date: Mon, 8 Jun 2026 12:27:54 +0200 From: Krzysztof Kozlowski To: Herman van Hazendonk Cc: lee@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 1/1] dt-bindings: mfd: add ti,lm8502 combo LED + haptic controller Message-ID: <20260608-crazy-ruby-impala-c7e9a4@quoll> References: <20260603080256.853037-1-github.com@herrie.org> <20260603080256.853037-2-github.com@herrie.org> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20260603080256.853037-2-github.com@herrie.org> On Wed, Jun 03, 2026 at 10:02:56AM +0200, Herman van Hazendonk wrote: > Add a YAML binding for the TI LM8502, an I2C combo LED + haptic > controller used in the HP TouchPad tablet. The chip is exposed as an > MFD with two child sub-nodes: > > ti,lm8502-leds - LED-class outputs D1..D10 (with per-LED reg > and led-max-microamp properties) > ti,lm8502-haptic - EV_FF / FF_RUMBLE input device for the internal > H-bridge vibrator output, optional > ti,invert-direction property > > Signed-off-by: Herman van Hazendonk > --- > .../devicetree/bindings/mfd/ti,lm8502.yaml | 160 ++++++++++++++++++ > 1 file changed, 160 insertions(+) > create mode 100644 Documentation/devicetree/bindings/mfd/ti,lm8502.yaml > > diff --git a/Documentation/devicetree/bindings/mfd/ti,lm8502.yaml b/Documentation/devicetree/bindings/mfd/ti,lm8502.yaml > new file mode 100644 > index 000000000000..10f2e32a0738 > --- /dev/null > +++ b/Documentation/devicetree/bindings/mfd/ti,lm8502.yaml > @@ -0,0 +1,160 @@ > +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/mfd/ti,lm8502.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: TI LM8502 combo LED + haptic controller > + > +maintainers: > + - Herman van Hazendonk > + > +description: | > + The TI LM8502 is an I2C combo device with ten constant-current LED > + outputs (D1..D10) and an internal H-bridge that drives a vibrator > + motor. Pin D10 is shared between the tenth LED channel and the > + haptic output; the haptic driver writes D10_CURRENT_CTRL = 0 at each > + start to mux the pin to the H-bridge path. > + > + The chip is exposed in Linux as an MFD with two children: > + - ti,lm8502-leds - LED-class outputs D1..D10 > + - ti,lm8502-haptic - EV_FF / FF_RUMBLE input device > + > + The parent node owns the I2C client, the chip-enable GPIO and the > + vcc regulator; children share access to the parent's regmap. > + > +properties: > + compatible: > + const: ti,lm8502 And where is any user of that? We do not take unused bindings. Best regards, Krzysztof