linux/Documentation/devicetree/bindings/serial/pl011.txt

* ARM AMBA Primecell PL011 serial UART

Required properties:
- compatible: must be "arm,primecell", "arm,pl011"
- reg: exactly one register range with length 0x1000
- interrupts: exactly one interrupt specifier

Optional properties:
- pinctrl: When present, must have one state named "sleep"
	   and one state named "default"
- clocks:  When present, must refer to exactly one clock named
	   "apb_pclk"
- dmas:	   When present, may have one or two dma channels.
	   The first one must be named "rx", the second one
	   must be named "tx".

See also bindings/arm/primecell.txt
serial: pl011: use generic DMA slave configuration if possible With the new OF DMA binding, it is possible to completely avoid the need for platform_data for configuring a DMA channel. In cases where the platform has already been converted, calling dma_request_slave_channel should get all the necessary information from the device tree. This also adds a binding document specific to the pl011 controller, and extends the generic primecell binding to mention "dmas" and other common properties. Like the patch that converts the dw_dma controller, this is completely untested and is looking for someone to try it out. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Russell King <linux@arm.linux.org.uk> Cc: Jiri Slaby <jslaby@suse.cz> Cc: Viresh Kumar <viresh.kumar@linaro.org> Cc: devicetree-discuss@lists.ozlabs.org Cc: linux-arm-kernel@lists.infradead.org 2013-01-28 16:24:37 +00:00			`* ARM AMBA Primecell PL011 serial UART`

			`Required properties:`
			`- compatible: must be "arm,primecell", "arm,pl011"`
			`- reg: exactly one register range with length 0x1000`
			`- interrupts: exactly one interrupt specifier`

			`Optional properties:`
			`- pinctrl: When present, must have one state named "sleep"`
			`and one state named "default"`
			`- clocks: When present, must refer to exactly one clock named`
			`"apb_pclk"`
			`- dmas: When present, may have one or two dma channels.`
			`The first one must be named "rx", the second one`
			`must be named "tx".`

			`See also bindings/arm/primecell.txt`