From patchwork Sun Aug 14 14:07:08 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Rafael Wysocki X-Patchwork-Id: 1064502 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter1.kernel.org (8.14.4/8.14.4) with ESMTP id p7EE5SR7008773 for ; Sun, 14 Aug 2011 14:05:28 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753130Ab1HNOF1 (ORCPT ); Sun, 14 Aug 2011 10:05:27 -0400 Received: from ogre.sisk.pl ([217.79.144.158]:40104 "EHLO ogre.sisk.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753363Ab1HNOF1 (ORCPT ); Sun, 14 Aug 2011 10:05:27 -0400 Received: from localhost (localhost.localdomain [127.0.0.1]) by ogre.sisk.pl (Postfix) with ESMTP id 569991B046F; Sun, 14 Aug 2011 15:27:37 +0200 (CEST) Received: from ogre.sisk.pl ([127.0.0.1]) by localhost (ogre.sisk.pl [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 24682-09; Sun, 14 Aug 2011 15:27:28 +0200 (CEST) Received: from ferrari.rjw.lan (220-bem-13.acn.waw.pl [82.210.184.220]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by ogre.sisk.pl (Postfix) with ESMTP id 535621B021A; Sun, 14 Aug 2011 15:27:28 +0200 (CEST) From: "Rafael J. Wysocki" To: Linux PM mailing list Subject: [Update x2][PATCH 9/9] ARM / shmobile: Make A3RV be a subdomain of A4LC on SH7372 Date: Sun, 14 Aug 2011 16:07:08 +0200 User-Agent: KMail/1.13.6 (Linux/3.1.0-rc1+; KDE/4.6.0; x86_64; ; ) Cc: LKML , Magnus Damm , linux-sh@vger.kernel.org References: <201107311946.06654.rjw@sisk.pl> <201107311952.51969.rjw@sisk.pl> <201108132143.47649.rjw@sisk.pl> In-Reply-To: <201108132143.47649.rjw@sisk.pl> MIME-Version: 1.0 Message-Id: <201108141607.08447.rjw@sisk.pl> X-Virus-Scanned: amavisd-new at ogre.sisk.pl using MkS_Vir for Linux Sender: linux-sh-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.6 (demeter1.kernel.org [140.211.167.41]); Sun, 14 Aug 2011 14:05:53 +0000 (UTC) From: Rafael J. Wysocki Subject: ARM / shmobile: Make A3RV be a subdomain of A4LC on SH7372 Instead of coding the undocumented dependencies between power domains A3RV and A4LC on SH7372 directly into the low-level power up/down routines, make A3RV be a subdomain of A4LC, which will cause the same dependecies to hold. Signed-off-by: Rafael J. Wysocki --- It also needs to build for CONFIG_PM unset. Thanks, Rafael --- arch/arm/mach-shmobile/include/mach/sh7372.h | 3 + arch/arm/mach-shmobile/pm-sh7372.c | 48 ++++----------------------- arch/arm/mach-shmobile/setup-sh7372.c | 3 + 3 files changed, 14 insertions(+), 40 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-sh" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Index: linux/arch/arm/mach-shmobile/pm-sh7372.c =================================================================== --- linux.orig/arch/arm/mach-shmobile/pm-sh7372.c +++ linux/arch/arm/mach-shmobile/pm-sh7372.c @@ -91,35 +91,6 @@ static int pd_power_up(struct generic_pm return ret; } -static int pd_power_up_a3rv(struct generic_pm_domain *genpd) -{ - int ret = pd_power_up(genpd); - - /* force A4LC on after A3RV has been requested on */ - pm_genpd_poweron(&sh7372_a4lc.genpd); - - return ret; -} - -static int pd_power_down_a3rv(struct generic_pm_domain *genpd) -{ - int ret = pd_power_down(genpd); - - /* try to power down A4LC after A3RV is requested off */ - genpd_queue_power_off_work(&sh7372_a4lc.genpd); - - return ret; -} - -static int pd_power_down_a4lc(struct generic_pm_domain *genpd) -{ - /* only power down A4LC if A3RV is off */ - if (!(__raw_readl(PSTR) & (1 << sh7372_a3rv.bit_shift))) - return pd_power_down(genpd); - - return -EBUSY; -} - static bool pd_active_wakeup(struct device *dev) { return true; @@ -133,17 +104,8 @@ void sh7372_init_pm_domain(struct sh7372 genpd->stop_device = pm_clk_suspend; genpd->start_device = pm_clk_resume; genpd->active_wakeup = pd_active_wakeup; - - if (sh7372_pd == &sh7372_a4lc) { - genpd->power_off = pd_power_down_a4lc; - genpd->power_on = pd_power_up; - } else if (sh7372_pd == &sh7372_a3rv) { - genpd->power_off = pd_power_down_a3rv; - genpd->power_on = pd_power_up_a3rv; - } else { - genpd->power_off = pd_power_down; - genpd->power_on = pd_power_up; - } + genpd->power_off = pd_power_down; + genpd->power_on = pd_power_up; genpd->power_on(&sh7372_pd->genpd); } @@ -159,6 +121,12 @@ void sh7372_add_device_to_domain(struct pm_genpd_add_device(&sh7372_pd->genpd, dev); } +void sh7372_pm_add_subdomain(struct sh7372_pm_domain *sh7372_pd, + struct sh7372_pm_domain *sh7372_sd) +{ + pm_genpd_add_subdomain(&sh7372_pd->genpd, &sh7372_sd->genpd); +} + struct sh7372_pm_domain sh7372_a4lc = { .bit_shift = 1, }; Index: linux/arch/arm/mach-shmobile/setup-sh7372.c =================================================================== --- linux.orig/arch/arm/mach-shmobile/setup-sh7372.c +++ linux/arch/arm/mach-shmobile/setup-sh7372.c @@ -30,6 +30,7 @@ #include #include #include +#include #include #include #include @@ -848,6 +849,8 @@ void __init sh7372_add_standard_devices( sh7372_init_pm_domain(&sh7372_a3ri); sh7372_init_pm_domain(&sh7372_a3sg); + sh7372_pm_add_subdomain(&sh7372_a4lc, &sh7372_a3rv); + platform_add_devices(sh7372_early_devices, ARRAY_SIZE(sh7372_early_devices)); Index: linux/arch/arm/mach-shmobile/include/mach/sh7372.h =================================================================== --- linux.orig/arch/arm/mach-shmobile/include/mach/sh7372.h +++ linux/arch/arm/mach-shmobile/include/mach/sh7372.h @@ -494,9 +494,12 @@ extern struct sh7372_pm_domain sh7372_a3 extern void sh7372_init_pm_domain(struct sh7372_pm_domain *sh7372_pd); extern void sh7372_add_device_to_domain(struct sh7372_pm_domain *sh7372_pd, struct platform_device *pdev); +extern void sh7372_pm_add_subdomain(struct sh7372_pm_domain *sh7372_pd, + struct sh7372_pm_domain *sh7372_sd); #else #define sh7372_init_pm_domain(pd) do { } while(0) #define sh7372_add_device_to_domain(pd, pdev) do { } while(0) +#define sh7372_pm_add_subdomain(pd, sd) do { } while(0) #endif /* CONFIG_PM */ #endif /* __ASM_SH7372_H__ */