From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8ECBD1863 for ; Wed, 28 Dec 2022 14:54:47 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1598BC433D2; Wed, 28 Dec 2022 14:54:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1672239287; bh=1bTQlCowzIbz6sSX1fGKwlqMPW5qpHYyPsR9Ib0WUNM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Y1z5ovEpvtcnLvajGDxdMj8sV7tLOAsOSzMBiDDs8ETDldT5kKuH4CLnKXcCtIAZN gc604fYADBC/g2YRBvFAkhBFKbYiHoStmdOnbeNCiwtuVeHHorX/9c1/O4zIsqE4eP k5GxS5S5nY2Uv4YgwINdjEvmtsZP8mrc1ZVR6s4o= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Michael Straube , Martin Kaiser , Sasha Levin , Philipp Hortmann Subject: [PATCH 6.0 0003/1073] staging: r8188eu: fix led register settings Date: Wed, 28 Dec 2022 15:26:31 +0100 Message-Id: <20221228144328.262411769@linuxfoundation.org> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20221228144328.162723588@linuxfoundation.org> References: <20221228144328.162723588@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Martin Kaiser [ Upstream commit 12c6223fc1804fd9295dc50d358294539b4a4184 ] Using an InterTech DMG-02 dongle, the led remains on when the system goes into standby mode. After wakeup, it's no longer possible to control the led. It turned out that the register settings to enable or disable the led were not correct. They worked for some dongles like the Edimax V2 but not for others like the InterTech DMG-02. This patch fixes the register settings. Bit 3 in the led_cfg2 register controls the led status, bit 5 must always be set to be able to control the led, bit 6 has no influence on the led. Setting the mac_pinmux_cfg register is not necessary. These settings were tested with Edimax V2 and InterTech DMG-02. Cc: stable@vger.kernel.org Fixes: 8cd574e6af54 ("staging: r8188eu: introduce new hal dir for RTL8188eu driver") Suggested-by: Michael Straube Signed-off-by: Martin Kaiser Tested-by: Michael Straube # InterTech DMG-02, Tested-by: Philipp Hortmann # Edimax N150 Link: https://lore.kernel.org/r/20221015151115.232095-2-martin@kaiser.cx Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin --- drivers/staging/r8188eu/core/rtw_led.c | 25 ++----------------------- 1 file changed, 2 insertions(+), 23 deletions(-) diff --git a/drivers/staging/r8188eu/core/rtw_led.c b/drivers/staging/r8188eu/core/rtw_led.c index 42e35953fd7b..1993c3993b3d 100644 --- a/drivers/staging/r8188eu/core/rtw_led.c +++ b/drivers/staging/r8188eu/core/rtw_led.c @@ -34,40 +34,19 @@ static void ResetLedStatus(struct led_priv *pLed) static void SwLedOn(struct adapter *padapter, struct led_priv *pLed) { - u8 LedCfg; - int res; - if (padapter->bDriverStopped) return; - res = rtw_read8(padapter, REG_LEDCFG2, &LedCfg); - if (res) - return; - - rtw_write8(padapter, REG_LEDCFG2, (LedCfg & 0xf0) | BIT(5) | BIT(6)); /* SW control led0 on. */ + rtw_write8(padapter, REG_LEDCFG2, BIT(5)); /* SW control led0 on. */ pLed->bLedOn = true; } static void SwLedOff(struct adapter *padapter, struct led_priv *pLed) { - u8 LedCfg; - int res; - if (padapter->bDriverStopped) goto exit; - res = rtw_read8(padapter, REG_LEDCFG2, &LedCfg);/* 0x4E */ - if (res) - goto exit; - - LedCfg &= 0x90; /* Set to software control. */ - rtw_write8(padapter, REG_LEDCFG2, (LedCfg | BIT(3))); - res = rtw_read8(padapter, REG_MAC_PINMUX_CFG, &LedCfg); - if (res) - goto exit; - - LedCfg &= 0xFE; - rtw_write8(padapter, REG_MAC_PINMUX_CFG, LedCfg); + rtw_write8(padapter, REG_LEDCFG2, BIT(5) | BIT(3)); exit: pLed->bLedOn = false; } -- 2.35.1