diff options
| author | Sebastian Reichel <sre@debian.org> | 2014-02-14 23:05:54 (GMT) |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2014-02-28 19:08:27 (GMT) |
| commit | e4c2e09e1534835c749de362b9b38e2d8b286236 (patch) | |
| tree | 8714b540149b18268db5ad58c1d9b7acac56fb99 /drivers/net/wireless/ti/wl1251 | |
| parent | 1d207cd30b65fdd60d952cb9e100b6f776564f06 (diff) | |
| download | linux-e4c2e09e1534835c749de362b9b38e2d8b286236.tar.xz | |
wl1251: spi: add vio regulator support
This patch adds support for requesting the regulator powering
the vio pin.
Signed-off-by: Sebastian Reichel <sre@debian.org>
Reviewed-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ti/wl1251')
| -rw-r--r-- | drivers/net/wireless/ti/wl1251/spi.c | 19 | ||||
| -rw-r--r-- | drivers/net/wireless/ti/wl1251/wl1251.h | 2 |
2 files changed, 19 insertions, 2 deletions
diff --git a/drivers/net/wireless/ti/wl1251/spi.c b/drivers/net/wireless/ti/wl1251/spi.c index 6abcbc3..0a8aacc 100644 --- a/drivers/net/wireless/ti/wl1251/spi.c +++ b/drivers/net/wireless/ti/wl1251/spi.c @@ -27,6 +27,7 @@ #include <linux/spi/spi.h> #include <linux/wl12xx.h> #include <linux/gpio.h> +#include <linux/regulator/consumer.h> #include "wl1251.h" #include "reg.h" @@ -306,13 +307,26 @@ static int wl1251_spi_probe(struct spi_device *spi) irq_set_irq_type(wl->irq, IRQ_TYPE_EDGE_RISING); - ret = wl1251_init_ieee80211(wl); + wl->vio = devm_regulator_get(&spi->dev, "vio"); + if (IS_ERR(wl->vio)) { + ret = PTR_ERR(wl->vio); + wl1251_error("vio regulator missing: %d", ret); + goto out_free; + } + + ret = regulator_enable(wl->vio); if (ret) goto out_free; + ret = wl1251_init_ieee80211(wl); + if (ret) + goto disable_regulator; + return 0; - out_free: +disable_regulator: + regulator_disable(wl->vio); +out_free: ieee80211_free_hw(hw); return ret; @@ -324,6 +338,7 @@ static int wl1251_spi_remove(struct spi_device *spi) free_irq(wl->irq, wl); wl1251_free_hw(wl); + regulator_disable(wl->vio); return 0; } diff --git a/drivers/net/wireless/ti/wl1251/wl1251.h b/drivers/net/wireless/ti/wl1251/wl1251.h index 389fe25..16dae52 100644 --- a/drivers/net/wireless/ti/wl1251/wl1251.h +++ b/drivers/net/wireless/ti/wl1251/wl1251.h @@ -280,6 +280,8 @@ struct wl1251 { int irq; bool use_eeprom; + struct regulator *vio; + spinlock_t wl_lock; enum wl1251_state state; |