netdev - RE: [PATCH] wlcore: spi: add wl18xx support

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Date:	Thu, 7 Apr 2016 12:45:13 +0000
From:	"Reizer, Eyal" <eyalr@...com>
To:	Kalle Valo <kvalo@...eaurora.org>,
	Eyal Reizer <eyalreizer@...il.com>
CC:	"linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>
Subject: RE: [PATCH] wlcore: spi: add wl18xx support



> -----Original Message-----
> From: Kalle Valo [mailto:kvalo@...eaurora.org]
> Sent: Thursday, April 07, 2016 3:25 PM
> To: Eyal Reizer
> Cc: linux-wireless@...r.kernel.org; netdev@...r.kernel.org; linux-
> kernel@...r.kernel.org; Reizer, Eyal; devicetree@...r.kernel.org
> Subject: Re: [PATCH] wlcore: spi: add wl18xx support
> 
> Eyal Reizer <eyalreizer@...il.com> writes:
> 
> > Add support for using with both wl12xx and wl18xx.
> >
> > - 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.
> > - switch to controling the cs pin from the spi driver for achieveing the
> >   above.
> > - the selected cs gpio is read from the spi device-tree node using the
> >   cs-gpios field and setup as a gpio.
> > - See the example below for specifying the cs gpio using the cs-gpios
> > entry
> >
> > &spi0	{
> >  	status = "okay";
> > 	pinctrl-names = "default";
> > 	pinctrl-0 = <&spi0_pins>;
> > 	cs-gpios = <&gpio0 5 0>;
> > 	#address-cells = <1>;
> > 	#size-cells = <0>;
> >  	wlcore: wlcore@0 {
> > 		compatible = "ti,wl1835";
> > 		vwlan-supply = <&wlan_en_reg>;
> > 		spi-max-frequency = <48000000>;
> > 		reg = <0>;      /* chip select 0 on spi0, ie spi0.0 */
> > 		interrupt-parent = <&gpio0>;
> > 		interrupts = <27 IRQ_TYPE_EDGE_RISING>;
> >  	};
> > };
> >
> > Signed-off-by: Eyal Reizer <eyalr@...com>
> 
> [...]
> 
> >  static const struct of_device_id wlcore_spi_of_match_table[] = {
> > -	{ .compatible = "ti,wl1271" },
> > +	{ .compatible = "ti,wl1271", .data = &wl12xx_data},
> > +	{ .compatible = "ti,wl1273", .data = &wl12xx_data},
> > +	{ .compatible = "ti,wl1281", .data = &wl12xx_data},
> > +	{ .compatible = "ti,wl1283", .data = &wl12xx_data},
> > +	{ .compatible = "ti,wl1801", .data = &wl18xx_data},
> > +	{ .compatible = "ti,wl1805", .data = &wl18xx_data},
> > +	{ .compatible = "ti,wl1807", .data = &wl18xx_data},
> > +	{ .compatible = "ti,wl1831", .data = &wl18xx_data},
> > +	{ .compatible = "ti,wl1835", .data = &wl18xx_data},
> > +	{ .compatible = "ti,wl1837", .data = &wl18xx_data},
> >  	{ }
> 
> Shouldn't you also update bindings/net/wireless/ti,wlcore,spi.txt? Now it only
> mentions about ti,wl1271 and not anything about the rest.

You are right! 
Will be fixed in v2

> 
> Adding devicetree list for further comments.
> 
> --
> Kalle Valo

Best Regards,
Eyal