From patchwork Thu Aug 28 07:02:26 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Simon Horman X-Patchwork-Id: 4797401 Return-Path: X-Original-To: patchwork-ltsi-dev@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 C595CC0338 for ; Thu, 28 Aug 2014 08:08:35 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id EC3502012E for ; Thu, 28 Aug 2014 08:08:34 +0000 (UTC) Received: from mail.linuxfoundation.org (mail.linuxfoundation.org [140.211.169.12]) (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 15CAC2012D for ; Thu, 28 Aug 2014 08:08:34 +0000 (UTC) Received: from mail.linux-foundation.org (localhost [127.0.0.1]) by mail.linuxfoundation.org (Postfix) with ESMTP id 014FE1260; Thu, 28 Aug 2014 07:30:44 +0000 (UTC) X-Original-To: ltsi-dev@lists.linuxfoundation.org Delivered-To: ltsi-dev@mail.linuxfoundation.org Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id 297111221 for ; Thu, 28 Aug 2014 07:30:41 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from kirsty.vergenet.net (kirsty.vergenet.net [202.4.237.240]) by smtp1.linuxfoundation.org (Postfix) with ESMTP id B3058201B4 for ; Thu, 28 Aug 2014 07:30:40 +0000 (UTC) Received: from ayumi.isobedori.kobe.vergenet.net (p4222-ipbfp1605kobeminato.hyogo.ocn.ne.jp [114.154.95.222]) by kirsty.vergenet.net (Postfix) with ESMTP id 6F1712673B2; Thu, 28 Aug 2014 17:08:51 +1000 (EST) Received: by ayumi.isobedori.kobe.vergenet.net (Postfix, from userid 7100) id ED1FEEDE5F6; Thu, 28 Aug 2014 16:08:49 +0900 (JST) From: Simon Horman To: ltsi-dev@lists.linuxfoundation.org Date: Thu, 28 Aug 2014 16:02:26 +0900 Message-Id: <1409209620-24487-621-git-send-email-horms+renesas@verge.net.au> X-Mailer: git-send-email 2.0.1 In-Reply-To: <1409209620-24487-1-git-send-email-horms+renesas@verge.net.au> References: <1409209620-24487-1-git-send-email-horms+renesas@verge.net.au> 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 Cc: Magnus Damm Subject: [LTSI-dev] [PATCH LTSI-3.14 620/894] ARM: shmobile: lager-reference: Work around core clock issues X-BeenThere: ltsi-dev@lists.linuxfoundation.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: "A list to discuss patches, development, and other things related to the LTSI project" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: ltsi-dev-bounces@lists.linuxfoundation.org Errors-To: ltsi-dev-bounces@lists.linuxfoundation.org X-Virus-Scanned: ClamAV using ClamSMTP Due to issues with runtime PM clock management, clocks not explicitly managed by their drivers may not be enabled at all, or be inadvertently disabled by the clk_disable_unused() late initcall. Until this is fixed, add a temporary workaround, calling shmobile_clk_workaround() with enable == true. For now this enables the clocks for: ether, msiof1, qspi_mod, and thermal. More clocks can be added if needed. Based on work for the koelsch board by Geert Uytterhoeven. Signed-off-by: Simon Horman Acked-by: Geert Uytterhoeven (cherry picked from commit aa5de826afe747c353162bbc116c63ab5335f91c) Signed-off-by: Simon Horman --- arch/arm/mach-shmobile/board-lager-reference.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/arch/arm/mach-shmobile/board-lager-reference.c b/arch/arm/mach-shmobile/board-lager-reference.c index 7ff395e..313118c 100644 --- a/arch/arm/mach-shmobile/board-lager-reference.c +++ b/arch/arm/mach-shmobile/board-lager-reference.c @@ -108,9 +108,20 @@ static const struct clk_name clk_names[] __initconst = { { "lvds1", "lvds.1", "rcar-du-r8a7790" }, }; +/* + * This is a really crude hack to work around core platform clock issues + */ +static const struct clk_name clk_enables[] __initconst = { + { "ether", NULL, "ee700000.ethernet" }, + { "msiof1", NULL, "e6e10000.spi" }, + { "qspi_mod", NULL, "e6b10000.spi" }, + { "thermal", NULL, "e61f0000.thermal" }, +}; + static void __init lager_add_standard_devices(void) { shmobile_clk_workaround(clk_names, ARRAY_SIZE(clk_names), false); + shmobile_clk_workaround(clk_enables, ARRAY_SIZE(clk_enables), true); r8a7790_add_dt_devices(); of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);