[PATCH 11/17] dt-bindings: Add PLX Technology OXNAS pinctrl and gpio bindings
From: Linus Walleij <hidden>
Date: 2016-03-15 14:30:10
Also in:
linux-devicetree, lkml
On Thu, Mar 3, 2016 at 12:40 PM, Neil Armstrong [off-list ref] wrote: This is a vert terse zero-line commit message. Atleast describe what you are trying to do.
Signed-off-by: Neil Armstrong <redacted>
+optional properties: +- #gpio-lines: Number of gpio if absent 32.
NACK, use ngpio from the gpio.txt document like everyone else.
+Required properties for iomux controller: +- compatible: "plxtech,nas782x-pinctrl" or "plxtech,ox810se-pinctrl" +- plxtech,mux-mask: array of mask (periph per bank) to describe if a pin can be + configured in this periph mode. All the periph and bank need to be describe.
Why? Encode this into the driver and select muxmask from the compatible string if it is a hardware limitation.
+Each column will represent the possible peripheral of the pinctrl +Each line will represent a pio bank + +For example : +Peripheral: 2 ( A and B) +Bank: 2 (A, B and C) +=> + + /* A B */ + 0xffffffff 0xffc00c3b /* pioA */ + 0xffffffff 0x7fff3ccf /* pioB */ + +For each peripheral/bank we will descibe in a u32 if a pin can be +configured in it by putting 1 to the pin bit (1 << pin)
That's just completely hopeless to understand for a DT author. Put it into the driver.
+Required properties for pin configuration node: +- plxtech,pins: 4 integers array, represents a group of pins mux and config + setting. The format is plxtech,pins = <PIN_BANK PIN_BANK_NUM PERIPH CONFIG>. + The PERIPH 0 means gpio, PERIPH 1 is periph A, PERIPH 2 is periph B... + PIN_BANK 0 is pioA, PIN_BANK 1 is pioB...
NACK, use the standard binding for "pins" from pinctrl-bindings.txt Also make the driver use the existing helpers for this property. Yours, Linus Walleij