diff options
| -rw-r--r-- | drivers/net/wireless/wl12xx/wl1271_sdio.c | 23 |
1 files changed, 17 insertions, 6 deletions
diff --git a/drivers/net/wireless/wl12xx/wl1271_sdio.c b/drivers/net/wireless/wl12xx/wl1271_sdio.c index 4c250d7dc3fa..f7bef32f04c9 100644 --- a/drivers/net/wireless/wl12xx/wl1271_sdio.c +++ b/drivers/net/wireless/wl12xx/wl1271_sdio.c @@ -30,6 +30,7 @@ #include <linux/mmc/card.h> #include <linux/gpio.h> #include <linux/wl12xx.h> +#include <linux/pm_runtime.h> #include "wl1271.h" #include "wl12xx_80211.h" @@ -160,12 +161,19 @@ static void wl1271_sdio_raw_write(struct wl1271 *wl, int addr, void *buf, static int wl1271_sdio_power_on(struct wl1271 *wl) { struct sdio_func *func = wl_to_func(wl); + int ret; + + /* Power up the card */ + ret = pm_runtime_get_sync(&func->dev); + if (ret < 0) + goto out; sdio_claim_host(func); sdio_enable_func(func); sdio_release_host(func); - return 0; +out: + return ret; } static int wl1271_sdio_power_off(struct wl1271 *wl) @@ -176,15 +184,12 @@ static int wl1271_sdio_power_off(struct wl1271 *wl) sdio_disable_func(func); sdio_release_host(func); - return 0; + /* Power down the card */ + return pm_runtime_put_sync(&func->dev); } static int wl1271_sdio_set_power(struct wl1271 *wl, bool enable) { - /* Let the SDIO stack handle wlan_enable control, so we - * keep host claimed while wlan is in use to keep wl1271 - * alive. - */ if (enable) return wl1271_sdio_power_on(wl); else @@ -256,6 +261,9 @@ static int __devinit wl1271_probe(struct sdio_func *func, sdio_set_drvdata(func, wl); + /* Tell PM core that we don't need the card to be powered now */ + pm_runtime_put_noidle(&func->dev); + wl1271_notice("initialized"); return 0; @@ -274,6 +282,9 @@ static void __devexit wl1271_remove(struct sdio_func *func) { struct wl1271 *wl = sdio_get_drvdata(func); + /* Undo decrement done above in wl1271_probe */ + pm_runtime_get_noresume(&func->dev); + wl1271_unregister_hw(wl); free_irq(wl->irq, wl); wl1271_free_hw(wl); |