From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933535AbbICP5r (ORCPT ); Thu, 3 Sep 2015 11:57:47 -0400 Received: from eusmtp01.atmel.com ([212.144.249.243]:4048 "EHLO eusmtp01.atmel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933284AbbICP5n (ORCPT ); Thu, 3 Sep 2015 11:57:43 -0400 Subject: Re: [PATCH linux-next v9 2/3] mfd: devicetree: add bindings for Atmel Flexcom To: Cyrille Pitchen , , , , References: <90fa2e0ded92567a29c996658153d833aaa5e411.1441118159.git.cyrille.pitchen@atmel.com> CC: , , , , , , , From: Nicolas Ferre X-Enigmail-Draft-Status: N1110 Organization: atmel Message-ID: <55E86DCB.3040805@atmel.com> Date: Thu, 3 Sep 2015 17:56:59 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.2.0 MIME-Version: 1.0 In-Reply-To: <90fa2e0ded92567a29c996658153d833aaa5e411.1441118159.git.cyrille.pitchen@atmel.com> Content-Type: text/plain; charset="windows-1252" Content-Transfer-Encoding: 8bit X-Originating-IP: [10.161.30.18] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Le 01/09/2015 16:46, Cyrille Pitchen a écrit : > This patch documents the DT bindings for the Atmel Flexcom which will be > introduced by sama5d2x SoCs. These bindings will be used by the actual > Flexcom driver to be sent in another patch. > > Signed-off-by: Cyrille Pitchen > Acked-by: Boris Brezillon > Acked-by: Alexandre Belloni After all, this approach is far more simple and obvious than the use of the "reg" property, so coming back to this "atmel,flexcom-mode" option make a lot of sense. Acked-by: Nicolas Ferre Bye, > --- > .../devicetree/bindings/mfd/atmel-flexcom.txt | 67 ++++++++++++++++++++++ > 1 file changed, 67 insertions(+) > create mode 100644 Documentation/devicetree/bindings/mfd/atmel-flexcom.txt > > diff --git a/Documentation/devicetree/bindings/mfd/atmel-flexcom.txt b/Documentation/devicetree/bindings/mfd/atmel-flexcom.txt > new file mode 100644 > index 000000000000..fc3511e41542 > --- /dev/null > +++ b/Documentation/devicetree/bindings/mfd/atmel-flexcom.txt > @@ -0,0 +1,67 @@ > +* Device tree bindings for Atmel Flexcom (Flexible Serial Communication Unit) > + > +The Atmel Flexcom is just a wrapper which embeds a SPI controller, an I2C > +controller and an USART. Only one function can be used at a time and is chosen > +at boot time according to the device tree. > + > +Required properties: > +- compatible: Should be "atmel,sama5d2-flexcom" > +- reg: Should be the offset/length value for Flexcom dedicated > + I/O registers (without USART, TWI or SPI registers). > +- clocks: Should be the Flexcom peripheral clock from PMC. > +- #address-cells: Should be <1> > +- #size-cells: Should be <1> > +- ranges: Should be one range for the full I/O register region > + (including USART, TWI and SPI registers). > +- atmel,flexcom-mode: Should be one of the 3 following macros as defined in > + include/dt-bindings/mfd/atmel-flexcom.h: > + - ATMEL_FLEXCOM_MODE_USART for USART > + - ATMEL_FLEXCOM_MODE_SPI for SPI > + - ATMEL_FLEXCOM_MODE_TWI for I2C > + > +Required child: > +a single child device of type matching the "atmel,flexcom-mode" property. > + > +The reg property of this child should be: > +- <0x200 0x200> for USART > +- <0x400 0x200> for SPI > +- <0x600 0x200> for I2C > + > +The phandle provided by the clocks property of the child is the same as one for > +the Flexcom parent. > + > +Other properties remain unchanged. See documentation of the respective device: > +- ../serial/atmel-usart.txt > +- ../spi/spi_atmel.txt > +- ../i2c/i2c-at91.txt > + > +Example: > + > +flexcom@f8034000 { > + compatible = "atmel,sama5d2-flexcom"; > + reg = <0xf8034000 0x200>; > + clocks = <&flx0_clk>; > + #address-cells = <1>; > + #size-cells = <1>; > + ranges = <0x0 0xf8034000 0x800>; > + atmel,flexcom-mode = ; > + > + spi@400 { > + compatible = "atmel,at91rm9200-spi"; > + reg = <0x400 0x200>; > + interrupts = <19 IRQ_TYPE_LEVEL_HIGH 7>; > + pinctrl-names = "default"; > + pinctrl-0 = <&pinctrl_flx0_default>; > + #address-cells = <1>; > + #size-cells = <0>; > + clocks = <&flx0_clk>; > + clock-names = "spi_clk"; > + atmel,fifo-size = <32>; > + > + mtd_dataflash@0 { > + compatible = "atmel,at25f512b"; > + reg = <0>; > + spi-max-frequency = <20000000>; > + }; > + }; > +}; > -- Nicolas Ferre From mboxrd@z Thu Jan 1 00:00:00 1970 From: Nicolas Ferre Subject: Re: [PATCH linux-next v9 2/3] mfd: devicetree: add bindings for Atmel Flexcom Date: Thu, 3 Sep 2015 17:56:59 +0200 Message-ID: <55E86DCB.3040805@atmel.com> References: <90fa2e0ded92567a29c996658153d833aaa5e411.1441118159.git.cyrille.pitchen@atmel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: <90fa2e0ded92567a29c996658153d833aaa5e411.1441118159.git.cyrille.pitchen-AIFe0yeh4nAAvxtiuMwx3w@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Cyrille Pitchen , boris.brezillon-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org, alexandre.belloni-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org, sameo-VuQAYsv1563Yd54FQh9/CA@public.gmane.org, lee.jones-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org Cc: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, pawel.moll-5wv7dgnIgG8@public.gmane.org, mark.rutland-5wv7dgnIgG8@public.gmane.org, ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg@public.gmane.org, galak-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: devicetree@vger.kernel.org Le 01/09/2015 16:46, Cyrille Pitchen a =E9crit : > This patch documents the DT bindings for the Atmel Flexcom which will= be > introduced by sama5d2x SoCs. These bindings will be used by the actua= l > Flexcom driver to be sent in another patch. >=20 > Signed-off-by: Cyrille Pitchen > Acked-by: Boris Brezillon > Acked-by: Alexandre Belloni After all, this approach is far more simple and obvious than the use of the "reg" property, so coming back to this "atmel,flexcom-mode" option make a lot of sense. Acked-by: Nicolas Ferre Bye, > --- > .../devicetree/bindings/mfd/atmel-flexcom.txt | 67 ++++++++++++= ++++++++++ > 1 file changed, 67 insertions(+) > create mode 100644 Documentation/devicetree/bindings/mfd/atmel-flexc= om.txt >=20 > diff --git a/Documentation/devicetree/bindings/mfd/atmel-flexcom.txt = b/Documentation/devicetree/bindings/mfd/atmel-flexcom.txt > new file mode 100644 > index 000000000000..fc3511e41542 > --- /dev/null > +++ b/Documentation/devicetree/bindings/mfd/atmel-flexcom.txt > @@ -0,0 +1,67 @@ > +* Device tree bindings for Atmel Flexcom (Flexible Serial Communicat= ion Unit) > + > +The Atmel Flexcom is just a wrapper which embeds a SPI controller, a= n I2C > +controller and an USART. Only one function can be used at a time and= is chosen > +at boot time according to the device tree. > + > +Required properties: > +- compatible: Should be "atmel,sama5d2-flexcom" > +- reg: Should be the offset/length value for Flexcom dedicated > + I/O registers (without USART, TWI or SPI registers). > +- clocks: Should be the Flexcom peripheral clock from PMC. > +- #address-cells: Should be <1> > +- #size-cells: Should be <1> > +- ranges: Should be one range for the full I/O register region > + (including USART, TWI and SPI registers). > +- atmel,flexcom-mode: Should be one of the 3 following macros as def= ined in > + include/dt-bindings/mfd/atmel-flexcom.h: > + - ATMEL_FLEXCOM_MODE_USART for USART > + - ATMEL_FLEXCOM_MODE_SPI for SPI > + - ATMEL_FLEXCOM_MODE_TWI for I2C > + > +Required child: > +a single child device of type matching the "atmel,flexcom-mode" prop= erty. > + > +The reg property of this child should be: > +- <0x200 0x200> for USART > +- <0x400 0x200> for SPI > +- <0x600 0x200> for I2C > + > +The phandle provided by the clocks property of the child is the same= as one for > +the Flexcom parent. > + > +Other properties remain unchanged. See documentation of the respecti= ve device: > +- ../serial/atmel-usart.txt > +- ../spi/spi_atmel.txt > +- ../i2c/i2c-at91.txt > + > +Example: > + > +flexcom@f8034000 { > + compatible =3D "atmel,sama5d2-flexcom"; > + reg =3D <0xf8034000 0x200>; > + clocks =3D <&flx0_clk>; > + #address-cells =3D <1>; > + #size-cells =3D <1>; > + ranges =3D <0x0 0xf8034000 0x800>; > + atmel,flexcom-mode =3D ; > + > + spi@400 { > + compatible =3D "atmel,at91rm9200-spi"; > + reg =3D <0x400 0x200>; > + interrupts =3D <19 IRQ_TYPE_LEVEL_HIGH 7>; > + pinctrl-names =3D "default"; > + pinctrl-0 =3D <&pinctrl_flx0_default>; > + #address-cells =3D <1>; > + #size-cells =3D <0>; > + clocks =3D <&flx0_clk>; > + clock-names =3D "spi_clk"; > + atmel,fifo-size =3D <32>; > + > + mtd_dataflash@0 { > + compatible =3D "atmel,at25f512b"; > + reg =3D <0>; > + spi-max-frequency =3D <20000000>; > + }; > + }; > +}; >=20 --=20 Nicolas Ferre -- To unsubscribe from this list: send the line "unsubscribe devicetree" i= n the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html From mboxrd@z Thu Jan 1 00:00:00 1970 From: nicolas.ferre@atmel.com (Nicolas Ferre) Date: Thu, 3 Sep 2015 17:56:59 +0200 Subject: [PATCH linux-next v9 2/3] mfd: devicetree: add bindings for Atmel Flexcom In-Reply-To: <90fa2e0ded92567a29c996658153d833aaa5e411.1441118159.git.cyrille.pitchen@atmel.com> References: <90fa2e0ded92567a29c996658153d833aaa5e411.1441118159.git.cyrille.pitchen@atmel.com> Message-ID: <55E86DCB.3040805@atmel.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Le 01/09/2015 16:46, Cyrille Pitchen a ?crit : > This patch documents the DT bindings for the Atmel Flexcom which will be > introduced by sama5d2x SoCs. These bindings will be used by the actual > Flexcom driver to be sent in another patch. > > Signed-off-by: Cyrille Pitchen > Acked-by: Boris Brezillon > Acked-by: Alexandre Belloni After all, this approach is far more simple and obvious than the use of the "reg" property, so coming back to this "atmel,flexcom-mode" option make a lot of sense. Acked-by: Nicolas Ferre Bye, > --- > .../devicetree/bindings/mfd/atmel-flexcom.txt | 67 ++++++++++++++++++++++ > 1 file changed, 67 insertions(+) > create mode 100644 Documentation/devicetree/bindings/mfd/atmel-flexcom.txt > > diff --git a/Documentation/devicetree/bindings/mfd/atmel-flexcom.txt b/Documentation/devicetree/bindings/mfd/atmel-flexcom.txt > new file mode 100644 > index 000000000000..fc3511e41542 > --- /dev/null > +++ b/Documentation/devicetree/bindings/mfd/atmel-flexcom.txt > @@ -0,0 +1,67 @@ > +* Device tree bindings for Atmel Flexcom (Flexible Serial Communication Unit) > + > +The Atmel Flexcom is just a wrapper which embeds a SPI controller, an I2C > +controller and an USART. Only one function can be used at a time and is chosen > +at boot time according to the device tree. > + > +Required properties: > +- compatible: Should be "atmel,sama5d2-flexcom" > +- reg: Should be the offset/length value for Flexcom dedicated > + I/O registers (without USART, TWI or SPI registers). > +- clocks: Should be the Flexcom peripheral clock from PMC. > +- #address-cells: Should be <1> > +- #size-cells: Should be <1> > +- ranges: Should be one range for the full I/O register region > + (including USART, TWI and SPI registers). > +- atmel,flexcom-mode: Should be one of the 3 following macros as defined in > + include/dt-bindings/mfd/atmel-flexcom.h: > + - ATMEL_FLEXCOM_MODE_USART for USART > + - ATMEL_FLEXCOM_MODE_SPI for SPI > + - ATMEL_FLEXCOM_MODE_TWI for I2C > + > +Required child: > +a single child device of type matching the "atmel,flexcom-mode" property. > + > +The reg property of this child should be: > +- <0x200 0x200> for USART > +- <0x400 0x200> for SPI > +- <0x600 0x200> for I2C > + > +The phandle provided by the clocks property of the child is the same as one for > +the Flexcom parent. > + > +Other properties remain unchanged. See documentation of the respective device: > +- ../serial/atmel-usart.txt > +- ../spi/spi_atmel.txt > +- ../i2c/i2c-at91.txt > + > +Example: > + > +flexcom at f8034000 { > + compatible = "atmel,sama5d2-flexcom"; > + reg = <0xf8034000 0x200>; > + clocks = <&flx0_clk>; > + #address-cells = <1>; > + #size-cells = <1>; > + ranges = <0x0 0xf8034000 0x800>; > + atmel,flexcom-mode = ; > + > + spi at 400 { > + compatible = "atmel,at91rm9200-spi"; > + reg = <0x400 0x200>; > + interrupts = <19 IRQ_TYPE_LEVEL_HIGH 7>; > + pinctrl-names = "default"; > + pinctrl-0 = <&pinctrl_flx0_default>; > + #address-cells = <1>; > + #size-cells = <0>; > + clocks = <&flx0_clk>; > + clock-names = "spi_clk"; > + atmel,fifo-size = <32>; > + > + mtd_dataflash at 0 { > + compatible = "atmel,at25f512b"; > + reg = <0>; > + spi-max-frequency = <20000000>; > + }; > + }; > +}; > -- Nicolas Ferre