Re: [PATCH 1/7] Documentation: dt: net: Update the ath9k binding for SoC devices

Rob Herring
2017-03-20T22:06:22Z

On Mon, Mar 13, 2017 at 10:05:09PM +0100, Alban wrote:
> The current binding only cover PCI devices so extend it for SoC devices.
>
> Most SoC platforms use an MTD partition for the calibration data
> instead of an EEPROM. The qca,no-eeprom property was added to allow
> loading the EEPROM content using firmware loading. This new binding
> replace this hack with NVMEM cells, so we also mark the qca,no-eeprom
> property as deprecated in case anyone ever used it.
>
> Signed-off-by: Alban <albeu@free.fr>
> ---
> .../devicetree/bindings/net/wireless/qca,ath9k.txt | 41 ++++++++++++++++++++--
> 1 file changed, 38 insertions(+), 3 deletions(-)

For the subject, "dt-bindings: net: ..." and one nit below, otherwise:

Acked-by: Rob Herring <robh@kernel.org>

>
> diff --git a/Documentation/devicetree/bindings/net/wireless/qca,ath9k.txt b/Documentation/devicetree/bindings/net/wireless/qca,ath9k.txt
> index b7396c8..61f5f6d 100644
> --- a/Documentation/devicetree/bindings/net/wireless/qca,ath9k.txt
> +++ b/Documentation/devicetree/bindings/net/wireless/qca,ath9k.txt
> @@ -27,16 +27,34 @@ Required properties:
> - 0034 for AR9462
> - 0036 for AR9565
> - 0037 for AR9485
> + For SoC devices the compatible should be "qca,<soctype>-wmac"
> + and one of the following fallbacks:
> + - "qca,ar9100-wmac"
> + - "qca,ar9330-wmac"
> + - "qca,ar9340-wmac"
> + - "qca,qca9550-wmac"
> + - "qca,qca9530-wmac"
> - reg: Address and length of the register set for the device.
>
> +Required properties for SoC devices:
> +- interrupt-parent: phandle of the parent interrupt controller.
> +- interrupts: Interrupt specifier for the controllers interrupt.
> +
> Optional properties:
> +- mac-address: See ethernet.txt in the parent directory
> +- local-mac-address: See ethernet.txt in the parent directory
> +- clock-names: has to be "ref"
> +- clocks: phandle of the reference clock
> +- resets: phandle of the reset line
> +- nvmem-cell-names: has to be "eeprom" and/or "address"
> +- nvmem-cells: phandle to the eeprom nvmem cell and/or to the mac address
> + nvmem cell.
> +
> +Deprecated properties:
> - qca,no-eeprom: Indicates that there is no physical EEPROM connected to the
> ath9k wireless chip (in this case the calibration /
> EEPROM data will be loaded from userspace using the
> kernel firmware loader).
> -- mac-address: See ethernet.txt in the parent directory
> -- local-mac-address: See ethernet.txt in the parent directory
> -
>
> In this example, the node is defined as child node of the PCI controller:
> &pci0 {
> @@ -46,3 +64,20 @@ In this example, the node is defined as child node of the PCI controller:
> qca,no-eeprom;
> };
> };
> +
> +In this example it is defined as a SoC device:
> + wmac@180c0000 {

wifi@...

> + compatible = "qca,ar9132-wmac", "qca,ar9100-wmac";
> + reg = <0x180c0000 0x30000>;
> +
> + interrupt-parent = <&cpuintc>;
> + interrupts = <2>;
> +
> + clock-names = "ref";
> + clocks = <&extosc>;
> +
> + nvmem-cell-names = "eeprom", "address";
> + nvmem-cells = <&wmac_eeprom>, <&wmac_address>;
> +
> + resets = <&rst 22>;
> + };
> --
> 2.7.4
>