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Commit b8f56a78 authored by Vasily Khoruzhick's avatar Vasily Khoruzhick Committed by Marek Vasut
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ARM: PXA: Z2: Fix libertas init/tear down sequences 



GPIO15 seems to be not related to WiFi, so don't touch it.

Signed-off-by: default avatarVasily Khoruzhick <anarsoul@gmail.com>
Acked-by: default avatarMarek Vasut <marek.vasut@gmail.com>
parent 233cdbce

arch/arm/mach-pxa/include/mach/z2.h

+1 −2
Original line number Diff line number Diff line
@@ -25,8 +25,7 @@ 
#define	GPIO98_ZIPITZ2_LID_BUTTON	98



/* Libertas GSPI8686 WiFi */

#define	GPIO14_ZIPITZ2_WIFI_RESET	14

#define	GPIO15_ZIPITZ2_WIFI_POWER	15

#define	GPIO14_ZIPITZ2_WIFI_POWER	14

#define	GPIO24_ZIPITZ2_WIFI_CS		24

#define	GPIO36_ZIPITZ2_WIFI_IRQ		36

arch/arm/mach-pxa/z2.c

+8 −23
Original line number Diff line number Diff line
@@ -139,8 +139,7 @@ static unsigned long z2_pin_config[] = { 
	GPIO1_GPIO,		/* Power button */

	GPIO37_GPIO,		/* Headphone detect */

	GPIO98_GPIO,		/* Lid switch */

	GPIO14_GPIO,		/* WiFi Reset */

	GPIO15_GPIO,		/* WiFi Power */

	GPIO14_GPIO,		/* WiFi Power */

	GPIO24_GPIO,		/* WiFi CS */

	GPIO36_GPIO,		/* WiFi IRQ */

	GPIO88_GPIO,		/* LCD CS */
@@ -512,26 +511,16 @@ static int z2_lbs_spi_setup(struct spi_device *spi) 
{

	int ret = 0;



	ret = gpio_request(GPIO15_ZIPITZ2_WIFI_POWER, "WiFi Power");

	ret = gpio_request(GPIO14_ZIPITZ2_WIFI_POWER, "WiFi Power");

	if (ret)

		goto err;



	ret = gpio_direction_output(GPIO15_ZIPITZ2_WIFI_POWER, 1);

	ret = gpio_direction_output(GPIO14_ZIPITZ2_WIFI_POWER, 1);

	if (ret)

		goto err2;



	ret = gpio_request(GPIO14_ZIPITZ2_WIFI_RESET, "WiFi Reset");

	if (ret)

		goto err2;



	ret = gpio_direction_output(GPIO14_ZIPITZ2_WIFI_RESET, 0);

	if (ret)

		goto err3;



	/* Reset the card */

	/* Wait until card is powered on */

	mdelay(180);

	gpio_set_value(GPIO14_ZIPITZ2_WIFI_RESET, 1);

	mdelay(20);



	spi->bits_per_word = 16;

	spi->mode = SPI_MODE_2,
@@ -540,22 +529,18 @@ static int z2_lbs_spi_setup(struct spi_device *spi) 


	return 0;



err3:

	gpio_free(GPIO14_ZIPITZ2_WIFI_RESET);

err2:

	gpio_free(GPIO15_ZIPITZ2_WIFI_POWER);

	gpio_free(GPIO14_ZIPITZ2_WIFI_POWER);

err:

	return ret;

};



static int z2_lbs_spi_teardown(struct spi_device *spi)

{

	gpio_set_value(GPIO14_ZIPITZ2_WIFI_RESET, 0);

	gpio_set_value(GPIO15_ZIPITZ2_WIFI_POWER, 0);

	gpio_free(GPIO14_ZIPITZ2_WIFI_RESET);

	gpio_free(GPIO15_ZIPITZ2_WIFI_POWER);

	return 0;

	gpio_set_value(GPIO14_ZIPITZ2_WIFI_POWER, 0);

	gpio_free(GPIO14_ZIPITZ2_WIFI_POWER);



	return 0;

};



static struct pxa2xx_spi_chip z2_lbs_chip_info = {