> >
> > - all wilink family needs special init command for entering wspi mode.
> > extra clock cycles should be sent after the spi init command while the
> > cs pin is high.
> > - Use inverted chip select for sending a dummy 4 bytes command that
> > completes the init stage and puts the wilink chip into wspi mode.
> >
> > Signed-off-by: Eyal Reizer <eyalr@xxxxxx>
> > ---
> > v1->v2:update device tree bindings configuration
> > v2->v3:revert from manual gpio manipulation. use inverted chip select
> instead
> > for sending the extra init cycle, which achieves the same hardware purpose.
> > update device tree bindings docucmentation accordingly
> >
> > .../bindings/net/wireless/ti,wlcore,spi.txt | 47 ++++++--
> > drivers/net/wireless/ti/wlcore/spi.c | 124 +++++++++++++++++----
> > 2 files changed, 145 insertions(+), 26 deletions(-)
> >
> > diff --git
> a/Documentation/devicetree/bindings/net/wireless/ti,wlcore,spi.txt
> b/Documentation/devicetree/bindings/net/wireless/ti,wlcore,spi.txt
> > index 9180724..35467cf 100644
> > --- a/Documentation/devicetree/bindings/net/wireless/ti,wlcore,spi.txt
> > +++ b/Documentation/devicetree/bindings/net/wireless/ti,wlcore,spi.txt
> > @@ -1,19 +1,30 @@
> > -* Texas Instruments wl1271 wireless lan controller
> > +* Texas Instruments wl12xx/wl18xx wireless lan controller
> >
> > -The wl1271 chip can be connected via SPI or via SDIO. This
> > +The wl12xx/wl18xx chips can be connected via SPI or via SDIO. This
> > document describes the binding for the SPI connected chip.
> >
> > Required properties:
> > -- compatible : Should be "ti,wl1271"
> > +- compatible : Should be one of the following:
> > + * "ti,wl1271"
> > + * "ti,wl1273"
> > + * "ti,wl1281"
> > + * "ti,wl1283"
> > + * "ti,wl1801"
> > + * "ti,wl1805"
> > + * "ti,wl1807"
> > + * "ti,wl1831"
> > + * "ti,wl1835"
> > + * "ti,wl1837"
> > - reg : Chip select address of device
> > - spi-max-frequency : Maximum SPI clocking speed of device in Hz
> > -- ref-clock-frequency : Reference clock frequency
> > - interrupt-parent, interrupts :
> > Should contain parameters for 1 interrupt line.
> > Interrupt parameters: parent, line number, type.
> > -- vwlan-supply : Point the node of the regulator that powers/enable the
> wl1271 chip
> > +- vwlan-supply : Point the node of the regulator that powers/enable
> the
> > + wl12xx/wl18xx chip
> >
> > Optional properties:
> > +- ref-clock-frequency : Reference clock frequency (should be set for
> wl12xx)
> > - clock-xtal : boolean, clock is generated from XTAL
> >
> > - Please consult Documentation/devicetree/bindings/spi/spi-bus.txt
> > @@ -21,10 +32,15 @@ Optional properties:
> >
> > Examples:
> >
> > +For wl12xx family:
> > &spi1 {
> > - wl1271@1 {
> > + status = "okay";
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&spi1_pins>;
> > + #address-cells = <1>;
> > + #size-cells = <0>;
>
> None of this is really relevant to this binding.
>
Understood. Will remove in v4
> > + wlcore: wlcore@0 {
>
> Now your unit-address and reg value don't match.
You are right. Will fix in v4
>
> > compatible = "ti,wl1271";
> > -
> > reg = <1>;
> > spi-max-frequency = <48000000>;
> > clock-xtal;
> > @@ -34,3 +50,20 @@ Examples:
> > vwlan-supply = <&vwlan_fixed>;
> > };
> > };
> > +
> > +For wl18xx family:
> > +&spi0 {
> > + status = "okay";
> > + pinctrl-names = "default";
> > + pinctrl-0 = <&spi0_pins>;
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > + wlcore: wlcore@0 {
> > + compatible = "ti,wl1835";
> > + vwlan-supply = <&wlan_en_reg>;
> > + spi-max-frequency = <48000000>;
> > + reg = <0>;
> > + interrupt-parent = <&gpio0>;
> > + interrupts = <27 IRQ_TYPE_EDGE_RISING>;
> > + };
> > +};
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