linux-kernel - [PATCH] staging: rtl8192e: Fix W_DISABLE# does not work after stop/start

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Message-ID: <20230414183452.GA12295@matrix-ESPRIMO-P710>
Date:   Fri, 14 Apr 2023 20:34:52 +0200
From:   Philipp Hortmann <philipp.g.hortmann@...il.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: [PATCH] staging: rtl8192e: Fix W_DISABLE# does not work after
 stop/start

When loading the driver for rtl8192e, the W_DISABLE# switch is working as
intended. But when the WLAN is turned off in software and then turned on
again the W_DISABLE# does not work anymore. Reason for this is that in
the function _rtl92e_dm_check_rf_ctrl_gpio() the bfirst_after_down is
checked and returned when true. bfirst_after_down is set true when
switching the WLAN off in software. But it is not set to false again
when WLAN is turned on again.

Add bfirst_after_down = false in _rtl92e_sta_up to reset bit and fix
above described bug.

Signed-off-by: Philipp Hortmann <philipp.g.hortmann@...il.com>
---
Tested with rtl8192e (WLL6130-D99)
Transferred this patch over wlan connection of rtl8192e
---
 drivers/staging/rtl8192e/rtl8192e/rtl_core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_core.c b/drivers/staging/rtl8192e/rtl8192e/rtl_core.c
index 45989a77a27c..a644543015ee 100644
--- a/drivers/staging/rtl8192e/rtl8192e/rtl_core.c
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_core.c
@@ -648,6 +648,7 @@ static int _rtl92e_sta_up(struct net_device *dev, bool is_silent_reset)
 	else
 		netif_wake_queue(dev);

+	priv->bfirst_after_down = false;
 	return 0;
 }

-- 
2.40.0