From 86046da4afe068991b77e0a4c4b79b99ad961bda Mon Sep 17 00:00:00 2001 From: Ohad Ben-Cohen Date: Sun, 29 May 2011 16:36:03 +0300 Subject: [PATCH] wl12xx: don't bail if mmc isn't MMC_CAP_POWER_OFF_CARD If our SDIO function has its runtime PM disabled, don't try to manipulate its runtime PM status at all. This way we can still power on cards plugged to mmc hosts that are not MMC_CAP_POWER_OFF_CARD. Reported-and-tested-by: Tim Yamin Signed-off-by: Ohad Ben-Cohen Signed-off-by: Luciano Coelho --- drivers/net/wireless/wl12xx/sdio.c | 17 +++++++++++------ 1 file changed, 11 insertions(+), 6 deletions(-) diff --git a/drivers/net/wireless/wl12xx/sdio.c b/drivers/net/wireless/wl12xx/sdio.c index 6b60caf..2521519 100644 --- a/drivers/net/wireless/wl12xx/sdio.c +++ b/drivers/net/wireless/wl12xx/sdio.c @@ -161,10 +161,12 @@ static int wl1271_sdio_power_on(struct wl1271 *wl) struct sdio_func *func = wl_to_func(wl); int ret; - /* Make sure the card will not be powered off by runtime PM */ - ret = pm_runtime_get_sync(&func->dev); - if (ret < 0) - goto out; + /* If enabled, tell runtime PM not to power off the card */ + if (pm_runtime_enabled(&func->dev)) { + ret = pm_runtime_get_sync(&func->dev); + if (ret) + goto out; + } /* Runtime PM might be disabled, so power up the card manually */ ret = mmc_power_restore_host(func->card->host); @@ -191,8 +193,11 @@ static int wl1271_sdio_power_off(struct wl1271 *wl) if (ret < 0) return ret; - /* Let runtime PM know the card is powered off */ - return pm_runtime_put_sync(&func->dev); + /* If enabled, let runtime PM know the card is powered off */ + if (pm_runtime_enabled(&func->dev)) + ret = pm_runtime_put_sync(&func->dev); + + return ret; } static int wl1271_sdio_set_power(struct wl1271 *wl, bool enable) -- 2.7.4