From patchwork Tue Mar 12 14:35:35 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nishanth Menon X-Patchwork-Id: 2256731 Return-Path: X-Original-To: patchwork-linux-omap@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork2.kernel.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by patchwork2.kernel.org (Postfix) with ESMTP id 4F6A8DF23A for ; Tue, 12 Mar 2013 14:35:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932339Ab3CLOfj (ORCPT ); Tue, 12 Mar 2013 10:35:39 -0400 Received: from arroyo.ext.ti.com ([192.94.94.40]:49505 "EHLO arroyo.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755183Ab3CLOfi (ORCPT ); Tue, 12 Mar 2013 10:35:38 -0400 Received: from dlelxv30.itg.ti.com ([172.17.2.17]) by arroyo.ext.ti.com (8.13.7/8.13.7) with ESMTP id r2CEZZ98003155; Tue, 12 Mar 2013 09:35:35 -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 r2CEZZtv016947; Tue, 12 Mar 2013 09:35:35 -0500 Received: from dlelxv22.itg.ti.com (172.17.1.197) by DLEE71.ent.ti.com (157.170.170.114) with Microsoft SMTP Server id 14.2.342.3; Tue, 12 Mar 2013 09:35:35 -0500 Received: from localhost (kahuna.am.dhcp.ti.com [128.247.75.12]) by dlelxv22.itg.ti.com (8.13.8/8.13.8) with ESMTP id r2CEZZWM012360; Tue, 12 Mar 2013 09:35:35 -0500 Date: Tue, 12 Mar 2013 09:35:35 -0500 From: Nishanth Menon To: Benoit Cousson CC: Santosh Shilimkar , cpufreq , "Rafael J. Wysocki" , Shawn Guo , , , Subject: Re: [PATCH 1/2] cpufreq: cpufreq-cpu0: support for clock which are not in DT yet. Message-ID: <20130312143535.GA21599@kahuna> References: <1363043130-30270-1-git-send-email-nm@ti.com> <1363043130-30270-2-git-send-email-nm@ti.com> <513EB704.8030907@ti.com> <513F3A88.5060903@ti.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <513F3A88.5060903@ti.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org On 15:24-20130312, Benoit Cousson wrote: > Hi Guys, > > On 03/12/2013 06:03 AM, Santosh Shilimkar wrote: > > On Tuesday 12 March 2013 04:35 AM, Nishanth Menon wrote: > >> On certain SoCs like variants of OMAP, the clock conversion to DT > >> is not complete. In short, the ability to: > >> cpus { > >> cpu@0 { > >> clocks = <&cpuclk 0>; > >> }; > >> }; > >> is not possible. However, the clock node is registered. > >> Allow for clk names to be provided as string so as to be used when needed. > >> Example (for OMAP3630): > >> cpus { > >> cpu@0 { > >> clock-name = "cpufreq_ck"; > >> }; > >> }; > >> > >> Cc: "Rafael J. Wysocki" > >> Cc: Santosh Shilimkar > >> Cc: Shawn Guo > >> Cc: linux-kernel@vger.kernel.org > >> Cc: cpufreq@vger.kernel.org > >> Cc: linux-pm@vger.kernel.org > >> Cc: linux-omap@vger.kernel.org > >> > >> Signed-off-by: Nishanth Menon > >> --- > > Seems a reasonable to me. > > No, it is not... > > You cannot add a temp binding just because the OMAP support is not > there, since the real binding already exist. > > You need to register properly a clock provider to be able to reference > it. > If you do need a hacky temp code you could do it in OMAP code but not in > the binding. OK. My intent is to remove omap-cpufreq.c. So, I guess I could do something like the following (not tested yet), but would that be the right approach? diff --git a/arch/arm/mach-omap2/cclock2420_data.c b/arch/arm/mach-omap2/cclock2420_data.c index 0f0a97c..c3017deb 100644 --- a/arch/arm/mach-omap2/cclock2420_data.c +++ b/arch/arm/mach-omap2/cclock2420_data.c @@ -1885,7 +1885,7 @@ static struct omap_clk omap2420_clks[] = { CLK(NULL, "timer_32k_ck", &func_32k_ck, CK_242X), CLK(NULL, "timer_sys_ck", &sys_ck, CK_242X), CLK(NULL, "timer_ext_ck", &alt_ck, CK_242X), - CLK(NULL, "cpufreq_ck", &virt_prcm_set, CK_242X), + CLK(NULL, "cpufreq-cpu0.0", &virt_prcm_set, CK_242X), }; diff --git a/arch/arm/mach-omap2/cclock2430_data.c b/arch/arm/mach-omap2/cclock2430_data.c index aed8f74..7000ca4 100644 --- a/arch/arm/mach-omap2/cclock2430_data.c +++ b/arch/arm/mach-omap2/cclock2430_data.c @@ -2001,7 +2001,7 @@ static struct omap_clk omap2430_clks[] = { CLK(NULL, "timer_32k_ck", &func_32k_ck, CK_243X), CLK(NULL, "timer_sys_ck", &sys_ck, CK_243X), CLK(NULL, "timer_ext_ck", &alt_ck, CK_243X), - CLK(NULL, "cpufreq_ck", &virt_prcm_set, CK_243X), + CLK(NULL, "cpufreq-cpu0.0", &virt_prcm_set, CK_243X), }; static const char *enable_init_clks[] = { diff --git a/arch/arm/mach-omap2/cclock3xxx_data.c b/arch/arm/mach-omap2/cclock3xxx_data.c index 4579c3c..7a1dfde 100644 --- a/arch/arm/mach-omap2/cclock3xxx_data.c +++ b/arch/arm/mach-omap2/cclock3xxx_data.c @@ -3501,7 +3501,7 @@ static struct omap_clk omap3xxx_clks[] = { CLK(NULL, "uart4_ick", &uart4_ick_am35xx, CK_AM35XX), CLK(NULL, "timer_32k_ck", &omap_32k_fck, CK_3XXX), CLK(NULL, "timer_sys_ck", &sys_ck, CK_3XXX), - CLK(NULL, "cpufreq_ck", &dpll1_ck, CK_3XXX), + CLK(NULL, "cpufreq-cpu0.0", &dpll1_ck, CK_3XXX), }; static const char *enable_init_clks[] = { diff --git a/arch/arm/mach-omap2/cclock44xx_data.c b/arch/arm/mach-omap2/cclock44xx_data.c index 3d58f33..5fad1da 100644 --- a/arch/arm/mach-omap2/cclock44xx_data.c +++ b/arch/arm/mach-omap2/cclock44xx_data.c @@ -1660,7 +1660,7 @@ static struct omap_clk omap44xx_clks[] = { CLK("4013a000.timer", "timer_sys_ck", &syc_clk_div_ck, CK_443X), CLK("4013c000.timer", "timer_sys_ck", &syc_clk_div_ck, CK_443X), CLK("4013e000.timer", "timer_sys_ck", &syc_clk_div_ck, CK_443X), - CLK(NULL, "cpufreq_ck", &dpll_mpu_ck, CK_443X), + CLK(NULL, "cpufreq-cpu0.0", &dpll_mpu_ck, CK_443X), }; int __init omap4xxx_clk_init(void)