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Commit a24e61a9 authored by Kalle Valo's avatar Kalle Valo Committed by Tony Lindgren
Browse files

omap3: rx51: Add wl1251 wlan driver support 



wl1251 is connected to the SPI bus in rx51, add support for this.

Signed-off-by: default avatarKalle Valo <kalle.valo@nokia.com>
Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
parent 2000655e

arch/arm/mach-omap2/board-rx51-peripherals.c

+81 −0
Original line number Original line Diff line number Diff line
@@ -14,6 +14,7 @@ 
#include <linux/input.h>

#include <linux/input.h>

#include <linux/input/matrix_keypad.h>

#include <linux/input/matrix_keypad.h>

#include <linux/spi/spi.h>

#include <linux/spi/spi.h>

#include <linux/spi/wl12xx.h>

#include <linux/i2c.h>

#include <linux/i2c.h>

#include <linux/i2c/twl4030.h>

#include <linux/i2c/twl4030.h>

#include <linux/clk.h>

#include <linux/clk.h>
@@ -37,6 +38,33 @@ 
#define SYSTEM_REV_B_USES_VAUX3	0x1699

#define SYSTEM_REV_B_USES_VAUX3	0x1699

#define SYSTEM_REV_S_USES_VAUX3 0x8

#define SYSTEM_REV_S_USES_VAUX3 0x8





#define RX51_WL1251_POWER_GPIO		87

#define RX51_WL1251_IRQ_GPIO		42



/* list all spi devices here */

enum {

	RX51_SPI_WL1251,

};



static struct wl12xx_platform_data wl1251_pdata;



static struct omap2_mcspi_device_config wl1251_mcspi_config = {

	.turbo_mode	= 0,

	.single_channel	= 1,

};



static struct spi_board_info rx51_peripherals_spi_board_info[] __initdata = {

	[RX51_SPI_WL1251] = {

		.modalias		= "wl1251",

		.bus_num		= 4,

		.chip_select		= 0,

		.max_speed_hz   	= 48000000,

		.mode                   = SPI_MODE_2,

		.controller_data	= &wl1251_mcspi_config,

		.platform_data		= &wl1251_pdata,

	},

};



#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)

#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)





#define RX51_GPIO_CAMERA_LENS_COVER	110

#define RX51_GPIO_CAMERA_LENS_COVER	110
@@ -617,11 +645,64 @@ static inline void board_smc91x_init(void) 




#endif

#endif





static void rx51_wl1251_set_power(bool enable)

{

	gpio_set_value(RX51_WL1251_POWER_GPIO, enable);

}



static void __init rx51_init_wl1251(void)

{

	int irq, ret;



	ret = gpio_request(RX51_WL1251_POWER_GPIO, "wl1251 power");

	if (ret < 0)

		goto error;



	ret = gpio_direction_output(RX51_WL1251_POWER_GPIO, 0);

	if (ret < 0)

		goto err_power;



	ret = gpio_request(RX51_WL1251_IRQ_GPIO, "wl1251 irq");

	if (ret < 0)

		goto err_power;



	ret = gpio_direction_input(RX51_WL1251_IRQ_GPIO);

	if (ret < 0)

		goto err_irq;



	irq = gpio_to_irq(RX51_WL1251_IRQ_GPIO);

	if (irq < 0)

		goto err_irq;



	wl1251_pdata.set_power = rx51_wl1251_set_power;

	rx51_peripherals_spi_board_info[RX51_SPI_WL1251].irq = irq;



	return;



err_irq:

	gpio_free(RX51_WL1251_IRQ_GPIO);



err_power:

	gpio_free(RX51_WL1251_POWER_GPIO);



error:

	printk(KERN_ERR "wl1251 board initialisation failed\n");

	wl1251_pdata.set_power = NULL;



	/*

	 * Now rx51_peripherals_spi_board_info[1].irq is zero and

	 * set_power is null, and wl1251_probe() will fail.

	 */

}



void __init rx51_peripherals_init(void)

void __init rx51_peripherals_init(void)

{

{

	rx51_i2c_init();

	rx51_i2c_init();

	board_onenand_init();

	board_onenand_init();

	board_smc91x_init();

	board_smc91x_init();

	rx51_add_gpio_keys();

	rx51_add_gpio_keys();

	rx51_init_wl1251();

	spi_register_board_info(rx51_peripherals_spi_board_info,

				ARRAY_SIZE(rx51_peripherals_spi_board_info));

}

}