diff options
| author | Eyal Reizer <eyalreizer@gmail.com> | 2018-04-26 08:47:11 +0300 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2018-04-30 13:30:42 +0300 |
| commit | 60f36637bbbdeea199d644eda284dba5144d2377 (patch) | |
| tree | 6b9ef61c563437f821e5615dba3490b19c1fbd4c /drivers/net/wireless/ti/wlcore/sdio.c | |
| parent | 3ff6ee28535f2f6698cc2b3acfd2af6942036067 (diff) | |
wlcore: sdio: allow pm to handle sdio power
pm_runtime handles sdio power on and power off transitions.
An old workaround for trying to control the power explicitly from the
driver was in fact causing failures on suspend/resume as the mmc layer
already power the module on resume.
In case of resume pm_runtime_get sync returns a positive device's usage
count causing the driver to try an re-initialize an already initialized
device. This was causing sdio bus failure on resume.
Remove this manual power on/off sequence as it is in-fact not needed.
Signed-off-by: Eyal Reizer <eyalr@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net/wireless/ti/wlcore/sdio.c')
| -rw-r--r-- | drivers/net/wireless/ti/wlcore/sdio.c | 27 |
1 files changed, 6 insertions, 21 deletions
diff --git a/drivers/net/wireless/ti/wlcore/sdio.c b/drivers/net/wireless/ti/wlcore/sdio.c index 1f727babbea0..6dbe61d47dc3 100644 --- a/drivers/net/wireless/ti/wlcore/sdio.c +++ b/drivers/net/wireless/ti/wlcore/sdio.c @@ -155,17 +155,11 @@ static int wl12xx_sdio_power_on(struct wl12xx_sdio_glue *glue) struct mmc_card *card = func->card; 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; - } + if (ret < 0) { + pm_runtime_put_noidle(&card->dev); + dev_err(glue->dev, "%s: failed to get_sync(%d)\n", + __func__, ret); + goto out; } sdio_claim_host(func); @@ -178,7 +172,6 @@ out: 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; @@ -186,16 +179,8 @@ static int wl12xx_sdio_power_off(struct wl12xx_sdio_glue *glue) sdio_disable_func(func); sdio_release_host(func); - /* Power off the card manually in case it wasn't powered off above */ - ret = mmc_power_save_host(card->host); - if (ret < 0) - goto out; - /* Let runtime PM know the card is powered off */ - pm_runtime_put_sync(&card->dev); - -out: - return ret; + return pm_runtime_put_sync(&card->dev); } static int wl12xx_sdio_set_power(struct device *child, bool enable) |