From mboxrd@z Thu Jan 1 00:00:00 1970 From: Cyrille Pitchen Subject: [PATCH v4 3/6] i2c: at91: update documentation for DT bindings Date: Wed, 3 Jun 2015 11:04:24 +0200 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: Sender: linux-i2c-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: ludovic.desroches-AIFe0yeh4nAAvxtiuMwx3w@public.gmane.org, nicolas.ferre-AIFe0yeh4nAAvxtiuMwx3w@public.gmane.org, linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, wsa-z923LK4zBo2bacvFa/9K2g@public.gmane.org Cc: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@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, robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, Cyrille Pitchen List-Id: linux-i2c@vger.kernel.org add a new value "atmel,at91sama5d2-i2c" for the "compatible" property. add a new optional property "atmel,fifo-size" to enable FIFO support when available. add missing optional properties "dmas" and "dma-names". Signed-off-by: Cyrille Pitchen --- Documentation/devicetree/bindings/i2c/i2c-at91.txt | 29 ++++++++++++++++++++-- 1 file changed, 27 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/i2c/i2c-at91.txt b/Documentation/devicetree/bindings/i2c/i2c-at91.txt index 388f0a2..7c04fd9 100644 --- a/Documentation/devicetree/bindings/i2c/i2c-at91.txt +++ b/Documentation/devicetree/bindings/i2c/i2c-at91.txt @@ -2,8 +2,8 @@ I2C for Atmel platforms Required properties : - compatible : Must be "atmel,at91rm9200-i2c", "atmel,at91sam9261-i2c", - "atmel,at91sam9260-i2c", "atmel,at91sam9g20-i2c", "atmel,at91sam9g10-i2c" - or "atmel,at91sam9x5-i2c" + "atmel,at91sam9260-i2c", "atmel,at91sam9g20-i2c", "atmel,at91sam9g10-i2c", + "atmel,at91sam9x5-i2c" or "atmel,at91sama5d2-i2c" - reg: physical base address of the controller and length of memory mapped region. - interrupts: interrupt number to the cpu. @@ -13,6 +13,9 @@ Required properties : Optional properties: - clock-frequency: Desired I2C bus frequency in Hz, otherwise defaults to 100000 +- dmas: A list of two dma specifiers, one for each entry in dma-names. +- dma-names: should contain "tx" and "rx". +- atmel,fifo-size: size of the RX and TX FIFOs, if available. - Child nodes conforming to i2c bus binding Examples : @@ -32,3 +35,25 @@ i2c0: i2c@fff84000 { pagesize = <128>; } } + +i2c0: i2c@f8034600 { + compatible = "atmel,at91sama5d2-i2c"; + reg = <0xf8034600 0x100>; + interrupts = <19 IRQ_TYPE_LEVEL_HIGH 7>; + dmas = <&dma0 + (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1)) + AT91_XDMAC_DT_PERID(11)>, + <&dma0 + (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1)) + AT91_XDMAC_DT_PERID(12)>; + dma-names = "tx", "rx"; + #address-cells = <1>; + #size-cells = <0>; + clocks = <&flx0>; + atmel,fifo-size = <32>; + + wm8731: wm8731@1a { + compatible = "wm8731"; + reg = <0x1a>; + }; +}; -- 1.8.2.2