Messages in this thread Patch in this message | | | From | Andreas Kemnade <> | Subject | [PATCH 6/6] wireless:libertas: fix suspend problems | Date | Wed, 6 Jan 2016 22:08:14 +0100 |
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When the device goes to suspend mode with powersaving enabled, lbs_remove_card tries to exit powersaving state even when already woken up. That command is not processed properly in that situation, so the system hangs at suspend, so disable it.
Signed-off-by: Andreas Kemnade <andreas@kemnade.info> --- drivers/net/wireless/libertas/main.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/libertas/main.c b/drivers/net/wireless/libertas/main.c index 8079560..b35b8bc 100644 --- a/drivers/net/wireless/libertas/main.c +++ b/drivers/net/wireless/libertas/main.c @@ -1060,7 +1060,12 @@ void lbs_remove_card(struct lbs_private *priv) if (priv->psmode == LBS802_11POWERMODEMAX_PSP) { priv->psmode = LBS802_11POWERMODECAM; - lbs_set_ps_mode(priv, PS_MODE_ACTION_EXIT_PS, true); + /* no need to wakeup if already woken up, + * on suspend, this exit ps command is not processed + * the driver hangs + */ + if (priv->psstate != PS_STATE_FULL_POWER) + lbs_set_ps_mode(priv, PS_MODE_ACTION_EXIT_PS, true); } if (priv->is_deep_sleep) { -- 2.1.4
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