From patchwork Thu Feb 12 17:45:54 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Coquelin X-Patchwork-Id: 5821171 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 [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 0EAADBF440 for ; Thu, 12 Feb 2015 17:50:19 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 2FA4D2022A for ; Thu, 12 Feb 2015 17:50:18 +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 538582011E for ; Thu, 12 Feb 2015 17:50:17 +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 1YLxrm-00053u-7I; Thu, 12 Feb 2015 17:47:54 +0000 Received: from mail-wg0-x242.google.com ([2a00:1450:400c:c00::242]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1YLxqd-0004Te-PI for linux-arm-kernel@lists.infradead.org; Thu, 12 Feb 2015 17:46:45 +0000 Received: by mail-wg0-f66.google.com with SMTP id l18so3543794wgh.1 for ; Thu, 12 Feb 2015 09:46:23 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:subject:date:message-id:in-reply-to:references; bh=obLyQwGFL8LUxV4CGlYVJYw7Z5yXq1BcZlKGDkogATo=; b=FGgJ7+16k1eMnECRszzphHlmZQznPnHVyq3Oghk9GkTVk1b7R62xZGiRco76mQ5L4r 6JIS0TP9cFFe1mWSunnCdisJPIrvWQ6gkk4ZG2n2yMQcoAy6RZ1ph3PHOGpCvRSv35M/ l9WGAwMQFskuZ2UrR4UoG8kV+23cvh4xgnENPPqqfw/mHlfgNSRtpvFy68lIxPp/8V1+ 6XmCNOs2433/Z6HvIZ85R/wlBVvunKP1ynErESP/zCZ9RgX5Y0k49VjCz9PGeFyDd2jl IGhnacyII7tCdyWRyDLfXhKObkMyQG14Uq2fg253oMFBcwbo44rIiakRVn9AYSOXz8DN FDDg== X-Received: by 10.194.2.75 with SMTP id 11mr10089455wjs.78.1423763183325; Thu, 12 Feb 2015 09:46:23 -0800 (PST) Received: from lmecul0520.st.com. (157.162.113.78.rev.sfr.net. [78.113.162.157]) by mx.google.com with ESMTPSA id ka1sm6614924wjc.2.2015.02.12.09.46.20 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Thu, 12 Feb 2015 09:46:22 -0800 (PST) From: Maxime Coquelin To: Jonathan Corbet , Maxime Coquelin , Rob Herring , Pawel Moll , Mark Rutland , Ian Campbell , Kumar Gala , Philipp Zabel , Russell King , Daniel Lezcano , Thomas Gleixner , Linus Walleij , Greg Kroah-Hartman , Jiri Slaby , Arnd Bergmann , Andrew Morton , "David S. Miller" , Mauro Carvalho Chehab , Joe Perches , Antti Palosaari , Tejun Heo , Will Deacon , Nikolay Borisov , Rusty Russell , Kees Cook , Michal Marek , linux-doc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-gpio@vger.kernel.org, linux-serial@vger.kernel.org, linux-arch@vger.kernel.org, linux-api@vger.kernel.org Subject: [PATCH 04/14] reset: Add reset_controller_of_init() function Date: Thu, 12 Feb 2015 18:45:54 +0100 Message-Id: <1423763164-5606-5-git-send-email-mcoquelin.stm32@gmail.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1423763164-5606-1-git-send-email-mcoquelin.stm32@gmail.com> References: <1423763164-5606-1-git-send-email-mcoquelin.stm32@gmail.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20150212_094644_026389_D490F6D0 X-CRM114-Status: GOOD ( 14.01 ) X-Spam-Score: -0.6 (/) 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: , 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=-4.1 required=5.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED, FREEMAIL_FROM, RCVD_IN_DNSWL_MED, T_DKIM_INVALID, T_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 Some platforms need to initialize the reset controller before the timers. This patch introduces a reset_controller_of_init() function that can be called before the timers intialization. Signed-off-by: Maxime Coquelin --- drivers/reset/core.c | 20 ++++++++++++++++++++ include/asm-generic/vmlinux.lds.h | 4 +++- include/linux/reset-controller.h | 6 ++++++ 3 files changed, 29 insertions(+), 1 deletion(-) diff --git a/drivers/reset/core.c b/drivers/reset/core.c index 7955e00..18ee579 100644 --- a/drivers/reset/core.c +++ b/drivers/reset/core.c @@ -86,6 +86,26 @@ void reset_controller_unregister(struct reset_controller_dev *rcdev) } EXPORT_SYMBOL_GPL(reset_controller_unregister); +extern struct of_device_id __reset_ctrl_of_table[]; + +static const struct of_device_id __reset_ctrl_of_table_sentinel + __used __section(__reset_ctrl_of_table_end); + +void __init reset_controller_of_init(void) +{ + struct device_node *np; + const struct of_device_id *match; + of_init_fn_1 init_func; + + for_each_matching_node_and_match(np, __reset_ctrl_of_table, &match) { + if (!of_device_is_available(np)) + continue; + + init_func = match->data; + init_func(np); + } +} + /** * reset_control_reset - reset the controlled device * @rstc: reset controller diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index bee5d68..1f96365 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -168,6 +168,7 @@ #define RESERVEDMEM_OF_TABLES() OF_TABLE(CONFIG_OF_RESERVED_MEM, reservedmem) #define CPU_METHOD_OF_TABLES() OF_TABLE(CONFIG_SMP, cpu_method) #define EARLYCON_OF_TABLES() OF_TABLE(CONFIG_SERIAL_EARLYCON, earlycon) +#define RESET_CTRL_OF_TABLES() OF_TABLE(CONFIG_RESET_CONTROLLER, reset_ctrl) #define KERNEL_DTB() \ STRUCT_ALIGN(); \ @@ -502,7 +503,8 @@ CPU_METHOD_OF_TABLES() \ KERNEL_DTB() \ IRQCHIP_OF_MATCH_TABLE() \ - EARLYCON_OF_TABLES() + EARLYCON_OF_TABLES() \ + RESET_CTRL_OF_TABLES() #define INIT_TEXT \ *(.init.text) \ diff --git a/include/linux/reset-controller.h b/include/linux/reset-controller.h index ce6b962..f8a030a 100644 --- a/include/linux/reset-controller.h +++ b/include/linux/reset-controller.h @@ -51,4 +51,10 @@ struct reset_controller_dev { int reset_controller_register(struct reset_controller_dev *rcdev); void reset_controller_unregister(struct reset_controller_dev *rcdev); + +#define RESET_CONTROLLER_OF_DECLARE(name, compat, fn) \ + OF_DECLARE_1(reset_ctrl, name, compat, fn) + +void reset_controller_of_init(void); + #endif