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authorIgor Grinberg <grinberg@compulab.co.il>2011-05-09 14:41:47 +0300
committerEric Miao <eric.y.miao@gmail.com>2011-07-11 14:43:26 +0800
commit5a009df1f200efa49658b0e9c7ad056d59fbefe4 (patch)
treeb5c0d936c1dce38ac66ad8f15af948fd51c3f7aa /arch/arm/mach-pxa/cm-x300.c
parent6c7b3ea52e345ab614edb91d3f0e9f3bb3713871 (diff)
downloadtalos-obmc-linux-5a009df1f200efa49658b0e9c7ad056d59fbefe4.tar.gz
talos-obmc-linux-5a009df1f200efa49658b0e9c7ad056d59fbefe4.zip
ARM: pxa/cm-x300: GPIO cleanup
use gpio_request_<one|array>() instead of multiple gpiolib calls Signed-off-by: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
Diffstat (limited to 'arch/arm/mach-pxa/cm-x300.c')
-rw-r--r--arch/arm/mach-pxa/cm-x300.c43
1 files changed, 20 insertions, 23 deletions
diff --git a/arch/arm/mach-pxa/cm-x300.c b/arch/arm/mach-pxa/cm-x300.c
index 8a034872ac77..880df335a3e9 100644
--- a/arch/arm/mach-pxa/cm-x300.c
+++ b/arch/arm/mach-pxa/cm-x300.c
@@ -484,14 +484,14 @@ static int cm_x300_ulpi_phy_reset(void)
int err;
/* reset the PHY */
- err = gpio_request(GPIO_ULPI_PHY_RST, "ulpi reset");
+ err = gpio_request_one(GPIO_ULPI_PHY_RST, GPIOF_OUT_INIT_LOW,
+ "ulpi reset");
if (err) {
pr_err("%s: failed to request ULPI reset GPIO: %d\n",
__func__, err);
return err;
}
- gpio_direction_output(GPIO_ULPI_PHY_RST, 0);
msleep(10);
gpio_set_value(GPIO_ULPI_PHY_RST, 1);
msleep(10);
@@ -768,39 +768,36 @@ static void __init cm_x300_init_da9030(void)
irq_set_irq_wake(IRQ_WAKEUP0, 1);
}
+/* wi2wi gpio setting for system_rev >= 130 */
+static struct gpio cm_x300_wi2wi_gpios[] __initdata = {
+ { 71, GPIOF_OUT_INIT_HIGH, "wlan en" },
+ { 70, GPIOF_OUT_INIT_HIGH, "bt reset" },
+};
+
static void __init cm_x300_init_wi2wi(void)
{
int bt_reset, wlan_en;
int err;
if (system_rev < 130) {
- wlan_en = 77;
- bt_reset = 78;
- } else {
- wlan_en = 71;
- bt_reset = 70;
+ cm_x300_wi2wi_gpios[0].gpio = 77; /* wlan en */
+ cm_x300_wi2wi_gpios[1].gpio = 78; /* bt reset */
}
/* Libertas and CSR reset */
- err = gpio_request(wlan_en, "wlan en");
+ err = gpio_request_array(ARRAY_AND_SIZE(cm_x300_wi2wi_gpios));
if (err) {
- pr_err("CM-X300: failed to request wlan en gpio: %d\n", err);
- } else {
- gpio_direction_output(wlan_en, 1);
- gpio_free(wlan_en);
+ pr_err("CM-X300: failed to request wifi/bt gpios: %d\n", err);
+ return;
}
- err = gpio_request(bt_reset, "bt reset");
- if (err) {
- pr_err("CM-X300: failed to request bt reset gpio: %d\n", err);
- } else {
- gpio_direction_output(bt_reset, 1);
- udelay(10);
- gpio_set_value(bt_reset, 0);
- udelay(10);
- gpio_set_value(bt_reset, 1);
- gpio_free(bt_reset);
- }
+ udelay(10);
+ gpio_set_value(bt_reset, 0);
+ udelay(10);
+ gpio_set_value(bt_reset, 1);
+
+ gpio_free(wlan_en);
+ gpio_free(bt_reset);
}
/* MFP */
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