From patchwork Thu Jul 31 21:28:08 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Emilio_L=C3=B3pez?= X-Patchwork-Id: 4659141 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 BAB75C033A for ; Thu, 31 Jul 2014 21:32:56 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id C21E620145 for ; Thu, 31 Jul 2014 21:32:55 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 2C8532015E for ; Thu, 31 Jul 2014 21:32:54 +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 1XCxwH-0001ow-AP; Thu, 31 Jul 2014 21:31:05 +0000 Received: from yotta.elopez.com.ar ([2a00:1768:1004:d00d:c0de:4:f00d:cafe]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1XCxvS-0008L9-GP for linux-arm-kernel@lists.infradead.org; Thu, 31 Jul 2014 21:30:15 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=elopez.com.ar; s=mail; h=Content-Transfer-Encoding:Content-Type:MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From; bh=RKPaoFg/s0ukk8UzUVffjVpu9JXQZmS5e1IcuOLxDaQ=; b=WyrYxa3uXdsfTAGmTIhtjydpYZUJMefESFqOOcYgqM0iFqq7JP0yjxC7aUHHTvseLtisT30luvm5veLMR2+LuSn7l/cqB1rJ+DbqX/Ze4R/Qx8AMb9MTaA5lleUhhd4TR+soc7tD2ZpDDi3UYkPD20rZJJ2bQe+chepAsLdADIXHChx334eHRlgi0HFMGeK7b0eJnZn4RTyymuPVvVcTVBsDC/5AJngN5lFmJONCW2wVFGoyZTrenT5ZwZoWqiJeQDJJUoiepC/LtfvYK0x2bufPoqba5T90fO34YSUr8WA6gHmHtI0jYBP8JYLTrXC93XBcdP9RlTak/0YlNODBEw==; Received: from [181.164.71.8] (helo=desktop.lan) by yotta.elopez.com.ar with esmtpsa (TLS1.2:ECDHE_RSA_AES_128_CBC_SHA256:128) (Exim 4.82_1-5b7a7c0-XX) id 1XCxv2-0003Cn-0r; Thu, 31 Jul 2014 18:29:48 -0300 From: =?UTF-8?q?Emilio=20L=C3=B3pez?= To: Maxime Ripard , Mike Turquette Subject: [PATCH 5/9] clk: sunxi: codec clock support Date: Thu, 31 Jul 2014 18:28:08 -0300 Message-Id: <1406842092-25207-6-git-send-email-emilio@elopez.com.ar> X-Mailer: git-send-email 2.0.3 In-Reply-To: <1406842092-25207-1-git-send-email-emilio@elopez.com.ar> References: <1406842092-25207-1-git-send-email-emilio@elopez.com.ar> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20140731_143014_786317_9A61E591 X-CRM114-Status: GOOD ( 11.45 ) X-Spam-Score: -0.8 (/) Cc: Arnd Bergmann , =?UTF-8?q?Emilio=20L=C3=B3pez?= , codekipper@gmail.com, jonsmirl@gmail.com, Olof Johansson , linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-2.5 required=5.0 tests=BAYES_00,DKIM_SIGNED, RP_MATCHES_RCVD, T_DKIM_INVALID, UNPARSEABLE_RELAY autolearn=ham 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 The codec clock on sun4i, sun5i and sun7i is a simple gate with PLL2 as parent. Signed-off-by: Emilio López Acked-by: Maxime Ripard --- Changes from RFC: * Document the compatible used * Collect ack from Maxime Documentation/devicetree/bindings/clock/sunxi.txt | 1 + drivers/clk/sunxi/Makefile | 1 + drivers/clk/sunxi/clk-a10-codec.c | 41 +++++++++++++++++++++++ 3 files changed, 43 insertions(+) create mode 100644 drivers/clk/sunxi/clk-a10-codec.c diff --git a/Documentation/devicetree/bindings/clock/sunxi.txt b/Documentation/devicetree/bindings/clock/sunxi.txt index 41ada31..d18b89b 100644 --- a/Documentation/devicetree/bindings/clock/sunxi.txt +++ b/Documentation/devicetree/bindings/clock/sunxi.txt @@ -48,6 +48,7 @@ Required properties: "allwinner,sun6i-a31-apb2-div-clk" - for the APB2 gates on A31 "allwinner,sun6i-a31-apb2-gates-clk" - for the APB2 gates on A31 "allwinner,sun8i-a23-apb2-gates-clk" - for the APB2 gates on A23 + "allwinner,sun4i-a10-codec-clk" - for the codec clock on A10 "allwinner,sun4i-a10-mod0-clk" - for the module 0 family of clocks "allwinner,sun7i-a20-out-clk" - for the external output clocks "allwinner,sun7i-a20-gmac-clk" - for the GMAC clock module on A20/A31 diff --git a/drivers/clk/sunxi/Makefile b/drivers/clk/sunxi/Makefile index dcd5709..a7a96f8 100644 --- a/drivers/clk/sunxi/Makefile +++ b/drivers/clk/sunxi/Makefile @@ -3,6 +3,7 @@ # obj-y += clk-sunxi.o clk-factors.o +obj-y += clk-a10-codec.o obj-y += clk-a10-hosc.o obj-y += clk-a10-pll2.o obj-y += clk-a20-gmac.o diff --git a/drivers/clk/sunxi/clk-a10-codec.c b/drivers/clk/sunxi/clk-a10-codec.c new file mode 100644 index 0000000..ab4d948 --- /dev/null +++ b/drivers/clk/sunxi/clk-a10-codec.c @@ -0,0 +1,41 @@ +/* + * Copyright 2014 Emilio López + * + * Emilio López + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include +#include +#include +#include + +#define SUN4I_CODEC_GATE 31 + +static void __init sun4i_codec_clk_setup(struct device_node *node) +{ + struct clk *clk; + const char *clk_name = node->name, *parent_name; + void __iomem *reg; + + of_property_read_string(node, "clock-output-names", &clk_name); + parent_name = of_clk_get_parent_name(node, 0); + reg = of_iomap(node, 0); + + clk = clk_register_gate(NULL, clk_name, parent_name, + CLK_SET_RATE_PARENT, reg, + SUN4I_CODEC_GATE, 0, NULL); + + if (!IS_ERR(clk)) + of_clk_add_provider(node, of_clk_src_simple_get, clk); +} +CLK_OF_DECLARE(sun4i_codec, "allwinner,sun4i-a10-codec-clk", sun4i_codec_clk_setup);