From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rob Herring Subject: Re: [v2,2/2] dt-bindings: i2c-mux-pca954x: Add optional property i2c-mux-never-disable Date: Fri, 11 Oct 2019 09:44:45 -0500 Message-ID: <20191011144445.GA2340@bogus> References: <20190930032503.44425-1-biwen.li@nxp.com> <20190930032503.44425-2-biwen.li@nxp.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <20190930032503.44425-2-biwen.li@nxp.com> Sender: linux-kernel-owner@vger.kernel.org To: Biwen Li Cc: peda@axentia.se, leoyang.li@nxp.com, mark.rutland@arm.com, linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org List-Id: devicetree@vger.kernel.org On Mon, Sep 30, 2019 at 11:25:03AM +0800, Biwen Li wrote: > The patch adds an optional property i2c-mux-never-disable > > Signed-off-by: Biwen Li > --- > Change in v2: > - update documentation > > Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.txt | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.txt b/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.txt > index 30ac6a60f041..71b73d0fdb62 100644 > --- a/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.txt > +++ b/Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.txt > @@ -34,6 +34,7 @@ Optional Properties: > - first cell is the pin number > - second cell is used to specify flags. > See also Documentation/devicetree/bindings/interrupt-controller/interrupts.txt > + - i2c-mux-never-disable: always forces mux to be enabled. Either needs to have a vendor prefix or be documented as a common property. IIRC, we already have a property for mux default state which seems like that would cover this unless you need to leave it in different states. Rob