From patchwork Wed May 4 16:46:10 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: "gregkh@linuxfoundation.org" X-Patchwork-Id: 569669 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7FBB7C433EF for ; Wed, 4 May 2022 17:13:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1356198AbiEDRRV (ORCPT ); Wed, 4 May 2022 13:17:21 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38690 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1356274AbiEDRL4 (ORCPT ); Wed, 4 May 2022 13:11:56 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 601754B85D; Wed, 4 May 2022 09:57:39 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id EDBF6B827A4; Wed, 4 May 2022 16:57:38 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 99A8CC385A5; Wed, 4 May 2022 16:57:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1651683457; bh=6Elx0oXf8pbyDQpAEzwHlIxpEwN9MDAQQX+4yMGajzg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=eqUpLq8v88kBcvpOnmbmzWzKv601k56rkdbRMguzY1eyZkGItsh+yRDV1xihFZEnZ FGikyi3fuwi7Zi2HusVlqOKXx8mqn2WcorjZhP74IDgR6UI9LUtQLozvIp2/1vt26k +ZItnTfrl6AutsNHoaYYrWlfaEyzhli0HevmV82M= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Nathan Rossi , =?utf-8?q?Marek_Beh=C3=BAn?= , Andrew Lunn , Paolo Abeni , Sasha Levin Subject: [PATCH 5.17 132/225] net: dsa: mv88e6xxx: Fix port_hidden_wait to account for port_base_addr Date: Wed, 4 May 2022 18:46:10 +0200 Message-Id: <20220504153122.110919171@linuxfoundation.org> X-Mailer: git-send-email 2.36.0 In-Reply-To: <20220504153110.096069935@linuxfoundation.org> References: <20220504153110.096069935@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Nathan Rossi [ Upstream commit 24cbdb910bb62b5be3865275e5682be1a7708c0f ] The other port_hidden functions rely on the port_read/port_write functions to access the hidden control port. These functions apply the offset for port_base_addr where applicable. Update port_hidden_wait to use the port_wait_bit so that port_base_addr offsets are accounted for when waiting for the busy bit to change. Without the offset the port_hidden_wait function would timeout on devices that have a non-zero port_base_addr (e.g. MV88E6141), however devices that have a zero port_base_addr would operate correctly (e.g. MV88E6390). Fixes: 609070133aff ("net: dsa: mv88e6xxx: update code operating on hidden registers") Signed-off-by: Nathan Rossi Reviewed-by: Marek Behún Reviewed-by: Andrew Lunn Link: https://lore.kernel.org/r/20220425070454.348584-1-nathan@nathanrossi.com Signed-off-by: Paolo Abeni Signed-off-by: Sasha Levin --- drivers/net/dsa/mv88e6xxx/port_hidden.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/net/dsa/mv88e6xxx/port_hidden.c b/drivers/net/dsa/mv88e6xxx/port_hidden.c index b49d05f0e117..7a9f9ff6dedf 100644 --- a/drivers/net/dsa/mv88e6xxx/port_hidden.c +++ b/drivers/net/dsa/mv88e6xxx/port_hidden.c @@ -40,8 +40,9 @@ int mv88e6xxx_port_hidden_wait(struct mv88e6xxx_chip *chip) { int bit = __bf_shf(MV88E6XXX_PORT_RESERVED_1A_BUSY); - return mv88e6xxx_wait_bit(chip, MV88E6XXX_PORT_RESERVED_1A_CTRL_PORT, - MV88E6XXX_PORT_RESERVED_1A, bit, 0); + return mv88e6xxx_port_wait_bit(chip, + MV88E6XXX_PORT_RESERVED_1A_CTRL_PORT, + MV88E6XXX_PORT_RESERVED_1A, bit, 0); } int mv88e6xxx_port_hidden_read(struct mv88e6xxx_chip *chip, int block, int port,