From patchwork Fri Jul 11 12:00:34 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tushar Behera X-Patchwork-Id: 4533081 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 B5B43BEEAA for ; Fri, 11 Jul 2014 12:07:04 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id F226C2015E for ; Fri, 11 Jul 2014 12:07:03 +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 2A4A02015D for ; Fri, 11 Jul 2014 12:07:03 +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 1X5ZZc-0006JT-Df; Fri, 11 Jul 2014 12:05:08 +0000 Received: from mail-pd0-x234.google.com ([2607:f8b0:400e:c02::234]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1X5ZZK-0005TF-Mf for linux-arm-kernel@lists.infradead.org; Fri, 11 Jul 2014 12:04:51 +0000 Received: by mail-pd0-f180.google.com with SMTP id fp1so1301005pdb.39 for ; Fri, 11 Jul 2014 05:04:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:from:to:cc:subject:date:message-id:in-reply-to:references; bh=B5Byskk7KnAbgZ0+S/DSzMEjtUpCFYq91sTFjp42o/Y=; b=AbE5k+sZ5gVgA1Zx1Eqgv7kqa8ME0PUrjMzmgiyjaefQBgfHwxH1AZSArGCFstimZf uQ0TmjPDruHL4SUzMOKIQ3ihR8OMB38vATSt2Mtiqo9/VGlxiYYCVNjSYE9grMgl+hhr b2Mlep16vNKKrbZA+jMVamVCQyqR9039bQidRyUcWMdbuwg3MsjDeHxaR496ceFaayvw 0BOU4nKNteJ7UVoGSLDZWcW+FT7Wdj1WT4SgausEHaetohVaHOtraDhhnyFL9eY0mUEA o9ksVDWdNplPRkv7yXF2DyLkvLIKsYNKOpRP7HjlqEJ9k245XGiiQgs+WHzAGIDIm0aj U0qA== X-Received: by 10.68.104.66 with SMTP id gc2mr54045246pbb.17.1405080269445; Fri, 11 Jul 2014 05:04:29 -0700 (PDT) Received: from linaro.sisodomain.com ([14.140.216.146]) by mx.google.com with ESMTPSA id s10sm2840018pdr.15.2014.07.11.05.04.26 for (version=TLSv1.1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Fri, 11 Jul 2014 05:04:28 -0700 (PDT) From: Tushar Behera To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-samsung-soc@vger.kernel.org Subject: [PATCH V2 2/3] clk: samsung: Add API to unregister clocks Date: Fri, 11 Jul 2014 17:30:34 +0530 Message-Id: <1405080036-6651-3-git-send-email-tushar.b@samsung.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1405080036-6651-1-git-send-email-tushar.b@samsung.com> References: <1405080036-6651-1-git-send-email-tushar.b@samsung.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20140711_050450_757721_AD9DD14E X-CRM114-Status: GOOD ( 13.81 ) X-Spam-Score: -0.7 (/) Cc: trblinux@gmail.com, t.figa@samsung.com, kgene.kim@samsung.com, mturquette@linaro.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: , 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=-2.4 required=5.0 tests=BAYES_00,DKIM_SIGNED, RP_MATCHES_RCVD, T_DKIM_INVALID, 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 Added an API to unregister all the clocks defined within a context. This is helpful in case where the clock is registered through a platform driver and we want to unregister the clocks during remove callback. Signed-off-by: Tushar Behera --- Changelog: This is new patch required because of changes to patch 3/3. drivers/clk/samsung/clk.c | 19 +++++++++++++++++++ drivers/clk/samsung/clk.h | 2 ++ 2 files changed, 21 insertions(+) diff --git a/drivers/clk/samsung/clk.c b/drivers/clk/samsung/clk.c index 49629c7..b9310b9 100644 --- a/drivers/clk/samsung/clk.c +++ b/drivers/clk/samsung/clk.c @@ -83,6 +83,25 @@ struct samsung_clk_provider *__init samsung_clk_init(struct device_node *np, return ctx; } +/* API to remove a clock provider */ +void samsung_clk_exit(struct device_node *np, struct samsung_clk_provider *ctx) +{ + int i; + + if (np) + of_clk_del_provider(np); + + if (!ctx) + return; + + for (i = 0; i < ctx->clk_data.clk_num; i++) + if (!IS_ERR(ctx->clk_data.clks[i])) + clk_unregister(ctx->clk_data.clks[i]); + + kfree(ctx->clk_data.clks); + kfree(ctx); +} + /* add a clock instance to the clock lookup table used for dt based lookup */ void samsung_clk_add_lookup(struct samsung_clk_provider *ctx, struct clk *clk, unsigned int id) diff --git a/drivers/clk/samsung/clk.h b/drivers/clk/samsung/clk.h index 9693b80..8ecc85a 100644 --- a/drivers/clk/samsung/clk.h +++ b/drivers/clk/samsung/clk.h @@ -327,6 +327,8 @@ struct samsung_pll_clock { extern struct samsung_clk_provider *__init samsung_clk_init( struct device_node *np, void __iomem *base, unsigned long nr_clks); +extern void samsung_clk_exit(struct device_node *np, + struct samsung_clk_provider *ctx); extern void __init samsung_clk_of_register_fixed_ext( struct samsung_clk_provider *ctx, struct samsung_fixed_rate_clock *fixed_rate_clk,