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-rw-r--r--drivers/net/wireless/ti/wlcore/io.h10
-rw-r--r--drivers/net/wireless/ti/wlcore/sdio.c34
2 files changed, 27 insertions, 17 deletions
diff --git a/drivers/net/wireless/ti/wlcore/io.h b/drivers/net/wireless/ti/wlcore/io.h
index 8942954b56a0..404cb14458eb 100644
--- a/drivers/net/wireless/ti/wlcore/io.h
+++ b/drivers/net/wireless/ti/wlcore/io.h
@@ -160,8 +160,14 @@ static inline void wlcore_write_reg(struct wl1271 *wl, int reg, u32 val)
static inline void wl1271_power_off(struct wl1271 *wl)
{
- wl->if_ops->power(wl->dev, false);
- clear_bit(WL1271_FLAG_GPIO_POWER, &wl->flags);
+ int ret;
+
+ if (!test_bit(WL1271_FLAG_GPIO_POWER, &wl->flags))
+ return;
+
+ ret = wl->if_ops->power(wl->dev, false);
+ if (!ret)
+ clear_bit(WL1271_FLAG_GPIO_POWER, &wl->flags);
}
static inline int wl1271_power_on(struct wl1271 *wl)
diff --git a/drivers/net/wireless/ti/wlcore/sdio.c b/drivers/net/wireless/ti/wlcore/sdio.c
index c67ec482e445..4edaa20acfb1 100644
--- a/drivers/net/wireless/ti/wlcore/sdio.c
+++ b/drivers/net/wireless/ti/wlcore/sdio.c
@@ -147,17 +147,20 @@ static int wl12xx_sdio_power_on(struct wl12xx_sdio_glue *glue)
{
int ret;
struct sdio_func *func = dev_to_sdio_func(glue->dev);
+ struct mmc_card *card = func->card;
- /* 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 < 0)
- goto out;
- } else {
- /* Runtime PM is disabled: power up the card manually */
- ret = mmc_power_restore_host(func->card->host);
- if (ret < 0)
+ ret = pm_runtime_get_sync(&card->dev);
+ if (ret) {
+ /*
+ * Runtime PM might be temporarily disabled, or the device
+ * might have a positive reference counter. Make sure it is
+ * really powered on.
+ */
+ ret = mmc_power_restore_host(card->host);
+ if (ret < 0) {
+ pm_runtime_put_sync(&card->dev);
goto out;
+ }
}
sdio_claim_host(func);
@@ -172,20 +175,21 @@ static int wl12xx_sdio_power_off(struct wl12xx_sdio_glue *glue)
{
int ret;
struct sdio_func *func = dev_to_sdio_func(glue->dev);
+ struct mmc_card *card = func->card;
sdio_claim_host(func);
sdio_disable_func(func);
sdio_release_host(func);
- /* Power off the card manually, even if runtime PM is enabled. */
- ret = mmc_power_save_host(func->card->host);
+ /* Power off the card manually in case it wasn't powered off above */
+ ret = mmc_power_save_host(card->host);
if (ret < 0)
- return ret;
+ goto out;
- /* If enabled, let runtime PM know the card is powered off */
- if (pm_runtime_enabled(&func->dev))
- ret = pm_runtime_put_sync(&func->dev);
+ /* Let runtime PM know the card is powered off */
+ pm_runtime_put_sync(&card->dev);
+out:
return ret;
}
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