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Commit 26f45c29 authored by Tony Lindgren's avatar Tony Lindgren
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ARM: OMAP2+: Legacy support for wl12xx when booted with devicetree 



Without WLAN we cannot switch omap4 to use device tree
only booting. This patch can be reverted when the
binding for wl12xx is added.

Cc: Benoit Cousson <b-cousson@ti.com>
Cc: Rajendra Nayak <rnayak@ti.com>
Cc: devicetree-discuss@lists.ozlabs.org
Tested-by: default avatarLuciano Coelho <coelho@ti.com>
Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
parent e4aa937e

arch/arm/mach-omap2/devices.c

+39 −0
Original line number Diff line number Diff line
@@ -15,12 +15,14 @@ 
#include <linux/io.h>

#include <linux/clk.h>

#include <linux/err.h>

#include <linux/gpio.h>

#include <linux/slab.h>

#include <linux/of.h>

#include <linux/pinctrl/machine.h>

#include <linux/platform_data/omap4-keypad.h>

#include <linux/platform_data/omap_ocp2scp.h>

#include <linux/usb/omap_control_usb.h>

#include <linux/wl12xx.h>



#include <asm/mach-types.h>

#include <asm/mach/map.h>
@@ -633,6 +635,40 @@ static void __init omap_init_ocp2scp(void) 
static inline void omap_init_ocp2scp(void) { }

#endif



#if IS_ENABLED(CONFIG_WL12XX)



static struct wl12xx_platform_data wl12xx __initdata;



void __init omap_init_wl12xx_of(void)

{

	int ret;



	if (!of_have_populated_dt())

		return;



	if (of_machine_is_compatible("ti,omap4-sdp")) {

		wl12xx.board_ref_clock = WL12XX_REFCLOCK_26;

		wl12xx.board_tcxo_clock = WL12XX_TCXOCLOCK_26;

		wl12xx.irq = gpio_to_irq(53);

	} else if (of_machine_is_compatible("ti,omap4-panda")) {

		wl12xx.board_ref_clock = WL12XX_REFCLOCK_38;

		wl12xx.irq = gpio_to_irq(53);

	} else {

		return;

	}



	ret = wl12xx_set_platform_data(&wl12xx);

	if (ret) {

		pr_err("error setting wl12xx data: %d\n", ret);

		return;

	}

}

#else

static inline void omap_init_wl12xx_of(void)

{

}

#endif



/*-------------------------------------------------------------------------*/



static int __init omap2_init_devices(void)
@@ -657,6 +693,9 @@ static int __init omap2_init_devices(void) 
		omap_init_mcspi();

		omap_init_sham();

		omap_init_aes();

	} else {

		/* These can be removed when bindings are done */

		omap_init_wl12xx_of();

	}

	omap_init_sti();

	omap_init_rng();