From patchwork Wed Mar 20 06:41:52 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: avinash philip X-Patchwork-Id: 2305491 Return-Path: X-Original-To: patchwork-davinci@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from bear.ext.ti.com (bear.ext.ti.com [192.94.94.41]) by patchwork1.kernel.org (Postfix) with ESMTP id 7DDA040213 for ; Wed, 20 Mar 2013 06:45:18 +0000 (UTC) Received: from dlelxv30.itg.ti.com ([172.17.2.17]) by bear.ext.ti.com (8.13.7/8.13.7) with ESMTP id r2K6fJHX016986; Wed, 20 Mar 2013 01:41:19 -0500 Received: from DLEE71.ent.ti.com (dlee71.ent.ti.com [157.170.170.114]) by dlelxv30.itg.ti.com (8.13.8/8.13.8) with ESMTP id r2K6fJTb007884; Wed, 20 Mar 2013 01:41:19 -0500 Received: from dlelxv24.itg.ti.com (172.17.1.199) by DLEE71.ent.ti.com (157.170.170.114) with Microsoft SMTP Server id 14.2.342.3; Wed, 20 Mar 2013 01:41:18 -0500 Received: from linux.omap.com (dlelxs01.itg.ti.com [157.170.227.31]) by dlelxv24.itg.ti.com (8.13.8/8.13.8) with ESMTP id r2K6fIDF014321; Wed, 20 Mar 2013 01:41:18 -0500 Received: from linux.omap.com (localhost [127.0.0.1]) by linux.omap.com (Postfix) with ESMTP id C06DA80628; Wed, 20 Mar 2013 00:41:18 -0600 (CST) X-Original-To: davinci-linux-open-source@linux.davincidsp.com Delivered-To: davinci-linux-open-source@linux.davincidsp.com Received: from dbdp20.itg.ti.com (dbdp20.itg.ti.com [172.24.170.38]) by linux.omap.com (Postfix) with ESMTP id 79B5880626 for ; Wed, 20 Mar 2013 00:41:15 -0600 (CST) Received: from DBDE71.ent.ti.com (localhost [127.0.0.1]) by dbdp20.itg.ti.com (8.13.8/8.13.8) with ESMTP id r2K6fETw018636; Wed, 20 Mar 2013 12:11:14 +0530 (IST) Received: from dbdp32.itg.ti.com (172.24.170.251) by DBDE71.ent.ti.com (172.24.170.149) with Microsoft SMTP Server id 14.1.323.3; Wed, 20 Mar 2013 12:11:14 +0530 Received: from ucmsshproxy.india.ext.ti.com (dbdp20.itg.ti.com [172.24.170.38]) by dbdp32.itg.ti.com (8.13.8/8.13.8) with SMTP id r2K6fDve019633; Wed, 20 Mar 2013 12:11:13 +0530 Received: from symphony.india.ext.ti.com (unknown [192.168.247.13]) by ucmsshproxy.india.ext.ti.com (Postfix) with ESMTP id DD926158002; Wed, 20 Mar 2013 12:11:13 +0530 (IST) Received: from ubuntu-psp-linux.india.ext.ti.com (ubuntu-psp-linux [192.168.247.46]) by symphony.india.ext.ti.com (8.11.7p1+Sun/8.11.7) with ESMTP id r2K6fDR20003; Wed, 20 Mar 2013 12:11:13 +0530 (IST) From: Philip Avinash To: , Subject: [PATCH v2 1/3] ARM: davinci: clk framework support for enable/disable functionality Date: Wed, 20 Mar 2013 12:11:52 +0530 Message-ID: <1363761714-15034-2-git-send-email-avinashphilip@ti.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1363761714-15034-1-git-send-email-avinashphilip@ti.com> References: <1363761714-15034-1-git-send-email-avinashphilip@ti.com> MIME-Version: 1.0 CC: , Philip Avinash , , X-BeenThere: davinci-linux-open-source@linux.davincidsp.com X-Mailman-Version: 2.1.12 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: Errors-To: davinci-linux-open-source-bounces@linux.davincidsp.com DAVINCI clock framework currently not supporting clock enable/disable functionality on clock nodes. In DAVINCI platform EHRPWM module requires support for clock enable/disable for TBCLK support. Hence this patch adds support for enabling/disabling clocks depends on the availability of the functionality. Signed-off-by: Philip Avinash --- Changes since v1: - Add support for clock enable/disable functionality. :100644 100644 d458558... aa89e5e... M arch/arm/mach-davinci/clock.c :100644 100644 8694b39... 1e4e836... M arch/arm/mach-davinci/clock.h arch/arm/mach-davinci/clock.c | 4 ++++ arch/arm/mach-davinci/clock.h | 2 ++ 2 files changed, 6 insertions(+) diff --git a/arch/arm/mach-davinci/clock.c b/arch/arm/mach-davinci/clock.c index d458558..aa89e5e 100644 --- a/arch/arm/mach-davinci/clock.c +++ b/arch/arm/mach-davinci/clock.c @@ -35,6 +35,8 @@ static void __clk_enable(struct clk *clk) { if (clk->parent) __clk_enable(clk->parent); + if (clk->clk_enable) + clk->clk_enable(clk); if (clk->usecount++ == 0 && (clk->flags & CLK_PSC)) davinci_psc_config(clk->domain, clk->gpsc, clk->lpsc, true, clk->flags); @@ -44,6 +46,8 @@ static void __clk_disable(struct clk *clk) { if (WARN_ON(clk->usecount == 0)) return; + if (clk->clk_disable) + clk->clk_disable(clk); if (--clk->usecount == 0 && !(clk->flags & CLK_PLL) && (clk->flags & CLK_PSC)) davinci_psc_config(clk->domain, clk->gpsc, clk->lpsc, diff --git a/arch/arm/mach-davinci/clock.h b/arch/arm/mach-davinci/clock.h index 8694b39..1e4e836 100644 --- a/arch/arm/mach-davinci/clock.h +++ b/arch/arm/mach-davinci/clock.h @@ -104,6 +104,8 @@ struct clk { int (*set_rate) (struct clk *clk, unsigned long rate); int (*round_rate) (struct clk *clk, unsigned long rate); int (*reset) (struct clk *clk, bool reset); + void (*clk_enable) (struct clk *clk); + void (*clk_disable) (struct clk *clk); }; /* Clock flags: SoC-specific flags start at BIT(16) */