| Date | Tue, 15 Mar 2016 15:30:06 +0100 | Subject | Re: [PATCH 11/17] dt-bindings: Add PLX Technology OXNAS pinctrl and gpio bindings | From | Linus Walleij <> |
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On Thu, Mar 3, 2016 at 12:40 PM, Neil Armstrong <narmstrong@baylibre.com> wrote:
This is a vert terse zero-line commit message. Atleast describe what you are trying to do.
> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
> +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
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