From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Return-Path: Date: Wed, 17 Jun 2020 16:39:55 -0600 From: Rob Herring Subject: Re: [PATCH 4/5] dt-bindings: fpga: xilinx-slave-serial: add optional INIT_B GPIO Message-ID: <20200617223955.GA2967317@bogus> References: <20200611211144.9421-1-luca@lucaceresoli.net> <20200611211144.9421-4-luca@lucaceresoli.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200611211144.9421-4-luca@lucaceresoli.net> To: Luca Ceresoli Cc: linux-fpga@vger.kernel.org, Moritz Fischer , Michal Simek , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Anatolij Gustschin List-ID: On Thu, Jun 11, 2020 at 11:11:43PM +0200, Luca Ceresoli wrote: > The INIT_B is used by the 6 and 7 series to report the programming status, > providing more control and information about programming errors. > > Signed-off-by: Luca Ceresoli > --- > .../devicetree/bindings/fpga/xilinx-slave-serial.txt | 7 ++++++- > 1 file changed, 6 insertions(+), 1 deletion(-) > > diff --git a/Documentation/devicetree/bindings/fpga/xilinx-slave-serial.txt b/Documentation/devicetree/bindings/fpga/xilinx-slave-serial.txt > index 9f103f3872e8..a049082e1513 100644 > --- a/Documentation/devicetree/bindings/fpga/xilinx-slave-serial.txt > +++ b/Documentation/devicetree/bindings/fpga/xilinx-slave-serial.txt > @@ -16,6 +16,10 @@ Required properties: > - prog_b-gpios: config pin (referred to as PROGRAM_B in the manual) > - done-gpios: config status pin (referred to as DONE in the manual) > > +Optional properties: > +- init_b-gpios: initialization status and configuration error pin > + (referred to as INIT_B in the manual) Don't use '_' in property names: init-b-gpios > + > Example for full FPGA configuration: > > fpga-region0 { > @@ -40,7 +44,8 @@ Example for full FPGA configuration: > spi-max-frequency = <60000000>; > spi-cpha; > reg = <0>; > - done-gpios = <&gpio0 9 GPIO_ACTIVE_HIGH>; > prog_b-gpios = <&gpio0 29 GPIO_ACTIVE_LOW>; > + init_b-gpios = <&gpio0 28 GPIO_ACTIVE_LOW>; > + done-gpios = <&gpio0 9 GPIO_ACTIVE_HIGH>; > }; > }; > -- > 2.27.0 >