From patchwork Mon Nov 25 18:15:59 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matt Porter X-Patchwork-Id: 3233841 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 082A9C045B for ; Mon, 25 Nov 2013 18:19:41 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id D1DC520265 for ; Mon, 25 Nov 2013 18:19:39 +0000 (UTC) Received: from casper.infradead.org (casper.infradead.org [85.118.1.10]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 9A3A8201BF for ; Mon, 25 Nov 2013 18:19:38 +0000 (UTC) Received: from merlin.infradead.org ([2001:4978:20e::2]) by casper.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1Vl0jN-000161-4y; Mon, 25 Nov 2013 18:17:58 +0000 Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1Vl0iy-0001lf-4u; Mon, 25 Nov 2013 18:17:32 +0000 Received: from mail-ie0-f175.google.com ([209.85.223.175]) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1Vl0iB-0001eI-CV for linux-arm-kernel@lists.infradead.org; Mon, 25 Nov 2013 18:16:46 +0000 Received: by mail-ie0-f175.google.com with SMTP id x13so7289136ief.6 for ; Mon, 25 Nov 2013 10:16:19 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=Xw10lAUuXP9stAclBP8c+57Z1YBk4BPcBq6sC5kzgWQ=; b=AmpyvfV5GxRkIoQio+oGyQ0movwB3DtJ7WICoGkoT02NV2wN+deiqdyPFLAsQFbUlE U+vXfB/MXAuSn/UrlU79u6ok051xH6WIRs3citeVh3AckM2l3Vs+h2of5ao9HLZBxhNK AFcjD1r3+3H68HJDYwb6tD1Lhy1YB5tdJ/MYVwg7v4bfz4ml/A3rsVIZkB9JxNLtPjC8 5TMU+j9rk6s1sB/htEr/+zDj99vF7a8sF8vkO4m4tDek++xsHu5TVkHd/8QDlsbWTMlZ +Q9mKIKq+lVmaQXamauRaig4M0L7eslTFkmKeX4WrC5ghrlYVeiWYvBg4vXArgyKrb2L 5g2A== X-Gm-Message-State: ALoCoQnr7Dws7vH8i+SxahP9xJkaJLHmbTsXnXWKl71e2KXsXOs1XU/pd5/sCZgwINjev6mzbjdu X-Received: by 10.50.111.74 with SMTP id ig10mr2429903igb.56.1385403376218; Mon, 25 Nov 2013 10:16:16 -0800 (PST) Received: from beef.ohporter.com (cpe-98-27-254-98.neo.res.rr.com. [98.27.254.98]) by mx.google.com with ESMTPSA id j16sm26901318igf.6.2013.11.25.10.16.14 for (version=TLSv1.1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Mon, 25 Nov 2013 10:16:15 -0800 (PST) From: Matt Porter To: Felipe Balbi , Greg Kroah-Hartman , Kishon Vijay Abraham I , Rob Herring , Pawel Moll , Mark Rutland , Kumar Gala , Ian Campbell , Christian Daudt , Paul Zimmerman Subject: [PATCH v3 1/9] phy: add phy_get_bus_width()/phy_set_bus_width() calls Date: Mon, 25 Nov 2013 13:15:59 -0500 Message-Id: <1385403367-18144-2-git-send-email-matt.porter@linaro.org> X-Mailer: git-send-email 1.8.4 In-Reply-To: <1385403367-18144-1-git-send-email-matt.porter@linaro.org> References: <1385403367-18144-1-git-send-email-matt.porter@linaro.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20131125_131643_818150_1B364A8B X-CRM114-Status: GOOD ( 12.61 ) X-Spam-Score: -2.6 (--) Cc: Devicetree List , Kamil Debski , Linaro Patches , Tomasz Figa , Linux USB List , Linux Kernel Mailing List , Kyungmin Park , Linux ARM Kernel List X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This adds a pair of APIs that allows the generic PHY subsystem to provide information on the PHY bus width. The PHY provider driver may use phy_set_bus_width() to set the bus width that the PHY supports. The controller driver may then use phy_get_bus_width() to fetch the PHY bus width in order to properly configure the controller. Signed-off-by: Matt Porter --- include/linux/phy/phy.h | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h index 6d72269..6ca6c61 100644 --- a/include/linux/phy/phy.h +++ b/include/linux/phy/phy.h @@ -46,6 +46,7 @@ struct phy_ops { * @mutex: mutex to protect phy_ops * @init_count: used to protect when the PHY is used by multiple consumers * @power_count: used to protect when the PHY is used by multiple consumers + * @bus_width: used to specify data width of the PHY bus */ struct phy { struct device dev; @@ -55,6 +56,7 @@ struct phy { struct mutex mutex; int init_count; int power_count; + int bus_width; }; /** @@ -127,6 +129,14 @@ int phy_init(struct phy *phy); int phy_exit(struct phy *phy); int phy_power_on(struct phy *phy); int phy_power_off(struct phy *phy); +static inline int phy_get_bus_width(struct phy *phy) +{ + return phy->bus_width; +} +static inline void phy_set_bus_width(struct phy *phy, int bus_width) +{ + phy->bus_width = bus_width; +} struct phy *phy_get(struct device *dev, const char *string); struct phy *devm_phy_get(struct device *dev, const char *string); void phy_put(struct phy *phy); @@ -199,6 +209,16 @@ static inline int phy_power_off(struct phy *phy) return -ENOSYS; } +static inline int phy_get_bus_width(struct phy *phy) +{ + return -ENOSYS; +} + +static inline void phy_set_bus_width(struct phy *phy, bus_width) +{ + return; +} + static inline struct phy *phy_get(struct device *dev, const char *string) { return ERR_PTR(-ENOSYS);