From patchwork Wed Aug 19 04:20:03 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chen-Yu Tsai X-Patchwork-Id: 7035061 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 0DCB09F372 for ; Wed, 19 Aug 2015 04:26:29 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 11A262084A for ; Wed, 19 Aug 2015 04:26:28 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 18565205DF for ; Wed, 19 Aug 2015 04:26:27 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZRusj-0005ig-1E; Wed, 19 Aug 2015 04:21:45 +0000 Received: from smtp.csie.ntu.edu.tw ([140.112.30.61]) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZRusJ-0005YW-Fn for linux-arm-kernel@lists.infradead.org; Wed, 19 Aug 2015 04:21:19 +0000 Received: from mirror2.csie.ntu.edu.tw (mirror2.csie.ntu.edu.tw [140.112.30.76]) (Authenticated sender: b93043) by smtp.csie.ntu.edu.tw (Postfix) with ESMTPSA id 158D32027A; Wed, 19 Aug 2015 12:20:37 +0800 (CST) Received: by mirror2.csie.ntu.edu.tw (Postfix, from userid 1000) id E1A545F9C8; Wed, 19 Aug 2015 12:20:36 +0800 (CST) From: Chen-Yu Tsai To: Rob Herring , Pawel Moll , Mark Rutland , Ian Campbell , Kumar Gala , Maxime Ripard , Greg Kroah-Hartman , Mark Brown Subject: [PATCH v3 2/8] rsb: sunxi: Add Allwinner Reduced Serial Bus (RSB) controller bindings Date: Wed, 19 Aug 2015 12:20:03 +0800 Message-Id: <1439958009-14056-3-git-send-email-wens@csie.org> X-Mailer: git-send-email 2.5.0 In-Reply-To: <1439958009-14056-1-git-send-email-wens@csie.org> References: <1439958009-14056-1-git-send-email-wens@csie.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20150818_212119_697375_957B8F0A X-CRM114-Status: GOOD ( 12.88 ) X-Spam-Score: -4.6 (----) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Hans de Goede , linux-sunxi@googlegroups.com, kevin.z.m.zh@gmail.com, shuge@allwinnertech.com, Chen-Yu Tsai , Meng Zhang , 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-Spam-Status: No, score=-4.6 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 Recent Allwinner SoCs, starting with the A23, have a Reduced Serial Bus (RSB) controller. This is used to talk to the PMIC, and later with the A80 and A83 platform, the audio codec IC. Signed-off-by: Chen-Yu Tsai --- .../devicetree/bindings/rsb/rsb-sunxi.txt | 34 ++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 Documentation/devicetree/bindings/rsb/rsb-sunxi.txt diff --git a/Documentation/devicetree/bindings/rsb/rsb-sunxi.txt b/Documentation/devicetree/bindings/rsb/rsb-sunxi.txt new file mode 100644 index 000000000000..057d24b84628 --- /dev/null +++ b/Documentation/devicetree/bindings/rsb/rsb-sunxi.txt @@ -0,0 +1,34 @@ + +* Allwinner RSB (Reduced Serial Bus) controller + +Required properties : + + - reg : Offset and length of the register set for the controller. + - compatible : Shall be "allwinner,sun8i-a23-rsb". + - interrupts : The interrupt line associated to the RSB controller. + - clocks : The gate clk associated to the RSB controller. + - resets : The reset line associated to the RSB controller. + - #address-cells : shall be 2 + - #size-cells : shall be 0 + +Optional properties : + + - clock-frequency : Desired RSB bus clock frequency in Hz. Maximum is 20MHz. + If not set the current hardware setting shall be used. + +See rsb.txt for the generic RSB bindings for RSB slaves / child nodes. + +Example: + + rsb@01f03400 { + compatible = "allwinner,sun8i-a23-rsb"; + reg = <0x01f03400 0x400>; + interrupts = <0 39 4>; + clocks = <&apb0_gates 3>; + clock-frequency = <3000000>; + resets = <&apb0_rst 3>; + #address-cells = <2>; + #size-cells = <0>; + + /* child nodes ... */ + };