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 B526619BCD for ; Wed, 7 Jun 2023 20:35:30 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 396C3C433EF; Wed, 7 Jun 2023 20:35:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1686170130; bh=jcjw9X/PZAUUpEcQPBtXgdIvqeW79OcBte1ovhiRAR8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Vt1iUlW0uduD59icGgacOhpp4mcDYc2ukGp4SACY/rB20u6mdRmtWH/y73M4UebSa CmHII9fn4nFOhk6KU2vBaLwb3baEc7lCP0gMbpjHwcz1pAK4wAKS7D7QuAH79F/44q umHN1+vLHJWs54OlkemV8Poc3ZKsyje4qIjfOSQk= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Andreas Svensson , Andrew Lunn , Paolo Abeni , Sasha Levin Subject: [PATCH 4.19 27/88] net: dsa: mv88e6xxx: Increase wait after reset deactivation Date: Wed, 7 Jun 2023 22:15:44 +0200 Message-ID: <20230607200859.969554688@linuxfoundation.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230607200854.030202132@linuxfoundation.org> References: <20230607200854.030202132@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: Andreas Svensson [ Upstream commit 3c27f3d53d588618d81d30d6712459a3cc9489b8 ] A switch held in reset by default needs to wait longer until we can reliably detect it. An issue was observed when testing on the Marvell 88E6393X (Link Street). The driver failed to detect the switch on some upstarts. Increasing the wait time after reset deactivation solves this issue. The updated wait time is now also the same as the wait time in the mv88e6xxx_hardware_reset function. Fixes: 7b75e49de424 ("net: dsa: mv88e6xxx: wait after reset deactivation") Signed-off-by: Andreas Svensson Reviewed-by: Andrew Lunn Link: https://lore.kernel.org/r/20230530145223.1223993-1-andreas.svensson@axis.com Signed-off-by: Paolo Abeni Signed-off-by: Sasha Levin --- drivers/net/dsa/mv88e6xxx/chip.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c index b593e4d85e9c0..792073a768ac0 100644 --- a/drivers/net/dsa/mv88e6xxx/chip.c +++ b/drivers/net/dsa/mv88e6xxx/chip.c @@ -4840,7 +4840,7 @@ static int mv88e6xxx_probe(struct mdio_device *mdiodev) goto out; } if (chip->reset) - usleep_range(1000, 2000); + usleep_range(10000, 20000); err = mv88e6xxx_detect(chip); if (err) -- 2.39.2