From mboxrd@z Thu Jan 1 00:00:00 1970 From: Zhong Kaihua Subject: [PATCH V2 1/2] dt-bindings: spi: Documentation for Hi6220 spi driver Date: Thu, 19 Nov 2015 16:37:08 +0800 Message-ID: <1447922229-60552-1-git-send-email-zhongkaihua@huawei.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: 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, catalin.marinas-5wv7dgnIgG8@public.gmane.org, will.deacon-5wv7dgnIgG8@public.gmane.org, xuwei5-C8/M+/jPZTeaMJb+Lgu22Q@public.gmane.org, tyler.baker-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org, bintian.wang-hv44wF8Li93QT0dZR+AlfA@public.gmane.org, haojian.zhuang-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org, xuyiping-C8/M+/jPZTeaMJb+Lgu22Q@public.gmane.org, arnd-r2nGTMty4D4@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Cc: w.f-hv44wF8Li93QT0dZR+AlfA@public.gmane.org, dan.zhao-C8/M+/jPZTeaMJb+Lgu22Q@public.gmane.org, zhongkaihua-hv44wF8Li93QT0dZR+AlfA@public.gmane.org, kkojima-ugdvmXx6nUh3+QwDJ9on6Q@public.gmane.org, suzhuangluan-C8/M+/jPZTeaMJb+Lgu22Q@public.gmane.org, puck.chen-C8/M+/jPZTeaMJb+Lgu22Q@public.gmane.org, kong.kongxinwei-C8/M+/jPZTeaMJb+Lgu22Q@public.gmane.org List-Id: devicetree@vger.kernel.org dt-bindings: spi: Documentation for Hi6220 spi driver Signed-off-by: Zhong Kaihua --- .../devicetree/bindings/spi/spi-hi6220.txt | 45 ++++++++++++++++++++++ 1 file changed, 45 insertions(+) create mode 100644 Documentation/devicetree/bindings/spi/spi-hi6220.txt diff --git a/Documentation/devicetree/bindings/spi/spi-hi6220.txt b/Documentation/devicetree/bindings/spi/spi-hi6220.txt new file mode 100644 index 0000000..91aa169 --- /dev/null +++ b/Documentation/devicetree/bindings/spi/spi-hi6220.txt @@ -0,0 +1,45 @@ +Hi6220 SPI controller + +Required properties: +- compatible : "arm,pl022", "arm,primecell" +- reg : Offset and length of the register set for the device +- interrupts : Should contain SPI controller interrupt +- num-cs : total number of chipselects + +Required Board Specific Properties: + +- #address-cells: should be 1. +- #size-cells: should be 0. + +Optional properties: +- cs-gpios : should specify GPIOs used for chipselects. + The gpios will be referred to as reg = in the SPI child nodes. + If unspecified, a single SPI device without a chip select can be used. +- dmas : Two or more DMA channel specifiers following the convention outlined + in bindings/dma/dma.txt +- dma-names: Names for the dma channels, if present. There must be at + least one channel named "tx" for transmit and named "rx" for + receive. + +Example: + spi_0: spi@f7106000 { + compatible = "arm,pl022", "arm,primecell"; + reg = <0x0 0xf7106000 0x0 0x1000>; + #address-cells = <1>; + #size-cells = <0>; + interrupts = <0 50 4>; + bus-id = <0>; + enable-dma = <1>; + dmas = <&dma0 12 &dma0 13>; + dma-names = "rx", "tx"; + + clocks = <&clock_sys HI6220_SPI_CLK>; + clock-names = "apb_pclk"; + pinctrl-names = "default"; + pinctrl-0 = <&spi0_pmx_func &spi0_cfg_func>; + num-cs = <4>; + cs-gpios = <&gpio6 2 0>, <&gpio6 3 0>, <&gpio6 4 0>, <&gpio6 5 0>; + + status = "ok"; + }; + -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html