Re: [RFC] MIPS: BCM63XX: register GPIO controller through Device Tree
From: Stephen Warren <hidden>
Date: 2012-11-13 05:06:24
Also in:
linux-devicetree, lkml
On 11/11/2012 05:50 AM, Jonas Gorski wrote:
Register the GPIO controller through Device Tree and add the appropriate values in the include files. Since we can't register a platform driver at this early stage move the direct call to bcm63xx_gpio_init from prom_init to an arch initcall.
quoted hunk ↗ jump to hunk
diff --git a/Documentation/devicetree/bindings/gpio/bcm63xx-gpio.txt b/Documentation/devicetree/bindings/gpio/bcm63xx-gpio.txt
+- #gpio-cells: Must be <2>. The first cell is the GPIO pin, and + the second one the standard linux flags.
Also here, I think you want to explicitly document the flag values here so the bindings don't rely on the Linux kernel code. I don't think there's a standard central file which documents them though, although I vaguely recall some discussion to create add them to gpio.txt?