From patchwork Wed Jun 14 15:49:05 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Antoine Tenart X-Patchwork-Id: 9786825 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id BA2C460325 for ; Wed, 14 Jun 2017 16:04:12 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A941D28505 for ; Wed, 14 Jun 2017 16:04:12 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 9CADF285AE; Wed, 14 Jun 2017 16:04:12 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 39D4C28505 for ; Wed, 14 Jun 2017 16:04:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=9dlT5xthrC7+bDbzsRUhusMHH34kGk0GRFxZFnMzTSs=; b=ubD1Dc0CPY81X6DBL/9gB2p/11 AkWseBp/qx3o45rDMCY98aF3tJIG6I6bjlixB3nRzoMho+Y40v15+Zep/1IxjVBBRi4cqOdPKrZWK KC94RnhQwNXEPXIkcm2k9nU612ZlFZVkBrjm3paUExMAa6nlCczdC6A1cTq1fXGE/Spo0FLJ/33kK wRqIXbbrzxegSxJoJce6hDacjxwowBJjesQDa9Kxg7T0OoDk6K6z2UEo3GhQVBG/QrrcDMatyDgDO suac4OU8pGljDUxpNuqZst4uDTp1PVPSXSRqJx+ADFv1CVw30/C+Z/mUrUv6s6XJ695KOzTelW/oJ ZYJDqBAA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1dLAm7-0000gm-HD; Wed, 14 Jun 2017 16:04:07 +0000 Received: from mail.free-electrons.com ([62.4.15.54]) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1dLAd6-0001YJ-C2 for linux-arm-kernel@lists.infradead.org; Wed, 14 Jun 2017 15:54:51 +0000 Received: by mail.free-electrons.com (Postfix, from userid 110) id 52FE421E3F; Wed, 14 Jun 2017 17:54:27 +0200 (CEST) Received: from localhost (LStLambert-657-1-97-87.w90-63.abo.wanadoo.fr [90.63.216.87]) by mail.free-electrons.com (Postfix) with ESMTPSA id 29ACE21D04; Wed, 14 Jun 2017 17:54:27 +0200 (CEST) From: Antoine Tenart To: davem@davemloft.net, jason@lakedaemon.net, andrew@lunn.ch, gregory.clement@free-electrons.com, sebastian.hesselbarth@gmail.com, f.fainelli@gmail.com Subject: [PATCH v4 05/11] net: mvmdio: introduce an ops structure Date: Wed, 14 Jun 2017 17:49:05 +0200 Message-Id: <20170614154911.14510-6-antoine.tenart@free-electrons.com> X-Mailer: git-send-email 2.9.4 In-Reply-To: <20170614154911.14510-1-antoine.tenart@free-electrons.com> References: <20170614154911.14510-1-antoine.tenart@free-electrons.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20170614_085448_695618_CBCAA1A9 X-CRM114-Status: GOOD ( 13.95 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: thomas.petazzoni@free-electrons.com, netdev@vger.kernel.org, Antoine Tenart , linux@armlinux.org.uk, nadavh@marvell.com, mw@semihalf.com, linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Introduce an ops structure to add an indirection on the is_done function, as this is needed to add the xMDIO support later. Signed-off-by: Antoine Tenart Reviewed-by: Florian Fainelli --- drivers/net/ethernet/marvell/mvmdio.c | 30 +++++++++++++++++++----------- 1 file changed, 19 insertions(+), 11 deletions(-) diff --git a/drivers/net/ethernet/marvell/mvmdio.c b/drivers/net/ethernet/marvell/mvmdio.c index eab625752b12..2a8efc77f5fe 100644 --- a/drivers/net/ethernet/marvell/mvmdio.c +++ b/drivers/net/ethernet/marvell/mvmdio.c @@ -62,14 +62,14 @@ struct orion_mdio_dev { wait_queue_head_t smi_busy_wait; }; -static int orion_mdio_smi_is_done(struct orion_mdio_dev *dev) -{ - return !(readl(dev->regs) & MVMDIO_SMI_BUSY); -} +struct orion_mdio_ops { + int (*is_done)(struct orion_mdio_dev *); +}; /* Wait for the SMI unit to be ready for another operation */ -static int orion_mdio_wait_ready(struct mii_bus *bus) +static int orion_mdio_wait_ready(const struct orion_mdio_ops *ops, + struct mii_bus *bus) { struct orion_mdio_dev *dev = bus->priv; unsigned long timeout = usecs_to_jiffies(MVMDIO_SMI_TIMEOUT); @@ -77,7 +77,7 @@ static int orion_mdio_wait_ready(struct mii_bus *bus) int timedout = 0; while (1) { - if (orion_mdio_smi_is_done(dev)) + if (ops->is_done(dev)) return 0; else if (timedout) break; @@ -96,8 +96,7 @@ static int orion_mdio_wait_ready(struct mii_bus *bus) if (timeout < 2) timeout = 2; wait_event_timeout(dev->smi_busy_wait, - orion_mdio_smi_is_done(dev), - timeout); + ops->is_done(dev), timeout); ++timedout; } @@ -107,6 +106,15 @@ static int orion_mdio_wait_ready(struct mii_bus *bus) return -ETIMEDOUT; } +static int orion_mdio_smi_is_done(struct orion_mdio_dev *dev) +{ + return !(readl(dev->regs) & MVMDIO_SMI_BUSY); +} + +static const struct orion_mdio_ops orion_mdio_smi_ops = { + .is_done = orion_mdio_smi_is_done, +}; + static int orion_mdio_read(struct mii_bus *bus, int mii_id, int regnum) { @@ -114,7 +122,7 @@ static int orion_mdio_read(struct mii_bus *bus, int mii_id, u32 val; int ret; - ret = orion_mdio_wait_ready(bus); + ret = orion_mdio_wait_ready(&orion_mdio_smi_ops, bus); if (ret < 0) goto out; @@ -123,7 +131,7 @@ static int orion_mdio_read(struct mii_bus *bus, int mii_id, MVMDIO_SMI_READ_OPERATION), dev->regs); - ret = orion_mdio_wait_ready(bus); + ret = orion_mdio_wait_ready(&orion_mdio_smi_ops, bus); if (ret < 0) goto out; @@ -145,7 +153,7 @@ static int orion_mdio_write(struct mii_bus *bus, int mii_id, struct orion_mdio_dev *dev = bus->priv; int ret; - ret = orion_mdio_wait_ready(bus); + ret = orion_mdio_wait_ready(&orion_mdio_smi_ops, bus); if (ret < 0) goto out;