From patchwork Fri Jul 1 20:54:03 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Benoit Cousson X-Patchwork-Id: 937902 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter2.kernel.org (8.14.4/8.14.4) with ESMTP id p61KsQPL032572 for ; Fri, 1 Jul 2011 20:54:26 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757104Ab1GAUyX (ORCPT ); Fri, 1 Jul 2011 16:54:23 -0400 Received: from bear.ext.ti.com ([192.94.94.41]:58576 "EHLO bear.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757070Ab1GAUyW (ORCPT ); Fri, 1 Jul 2011 16:54:22 -0400 Received: from dlep35.itg.ti.com ([157.170.170.118]) by bear.ext.ti.com (8.13.7/8.13.7) with ESMTP id p61KsJIM016408 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Fri, 1 Jul 2011 15:54:19 -0500 Received: from dlep26.itg.ti.com (smtp-le.itg.ti.com [157.170.170.27]) by dlep35.itg.ti.com (8.13.7/8.13.8) with ESMTP id p61KsJ5J006301; Fri, 1 Jul 2011 15:54:19 -0500 (CDT) Received: from dlee74.ent.ti.com (localhost [127.0.0.1]) by dlep26.itg.ti.com (8.13.8/8.13.8) with ESMTP id p61KsJuZ025512; Fri, 1 Jul 2011 15:54:19 -0500 (CDT) Received: from dlelxv22.itg.ti.com (172.17.1.197) by dlee74.ent.ti.com (157.170.170.8) with Microsoft SMTP Server id 8.3.106.1; Fri, 1 Jul 2011 15:54:19 -0500 Received: from localhost.localdomain (lncpu04.tif.ti.com [137.167.102.15]) by dlelxv22.itg.ti.com (8.13.8/8.13.8) with ESMTP id p61KsBeK012812; Fri, 1 Jul 2011 15:54:17 -0500 From: Benoit Cousson To: CC: rnayak@ti.com, linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Benoit Cousson Subject: [PATCH v2 4/8] OMAP2+: hwmod: Do not write the enawakeup bit if SYSC_HAS_ENAWAKEUP is not set Date: Fri, 1 Jul 2011 22:54:03 +0200 Message-ID: <1309553647-14624-5-git-send-email-b-cousson@ti.com> X-Mailer: git-send-email 1.7.0.4 In-Reply-To: <1309553647-14624-1-git-send-email-b-cousson@ti.com> References: <1309553647-14624-1-git-send-email-b-cousson@ti.com> MIME-Version: 1.0 Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.6 (demeter2.kernel.org [140.211.167.43]); Fri, 01 Jul 2011 20:54:26 +0000 (UTC) The Type 2 type of IPs will not have any enawakeup bit in their sysconfig. Writing to that bit will instead trigger a softreset. Check the flag to write this bit only if the module supports it. Reported-by: Miguel Vadillo Signed-off-by: Benoit Cousson Acked-by: Paul Walmsley --- arch/arm/mach-omap2/omap_hwmod.c | 14 ++++---------- 1 files changed, 4 insertions(+), 10 deletions(-) diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c index cbc2a8a..3800084 100644 --- a/arch/arm/mach-omap2/omap_hwmod.c +++ b/arch/arm/mach-omap2/omap_hwmod.c @@ -387,8 +387,6 @@ static int _set_module_autoidle(struct omap_hwmod *oh, u8 autoidle, */ static int _enable_wakeup(struct omap_hwmod *oh, u32 *v) { - u32 wakeup_mask; - if (!oh->class->sysc || !((oh->class->sysc->sysc_flags & SYSC_HAS_ENAWAKEUP) || (oh->class->sysc->idlemodes & SIDLE_SMART_WKUP) || @@ -400,9 +398,8 @@ static int _enable_wakeup(struct omap_hwmod *oh, u32 *v) return -EINVAL; } - wakeup_mask = (0x1 << oh->class->sysc->sysc_fields->enwkup_shift); - - *v |= wakeup_mask; + if (oh->class->sysc->sysc_flags & SYSC_HAS_ENAWAKEUP) + *v |= 0x1 << oh->class->sysc->sysc_fields->enwkup_shift; if (oh->class->sysc->idlemodes & SIDLE_SMART_WKUP) _set_slave_idlemode(oh, HWMOD_IDLEMODE_SMART_WKUP, v); @@ -425,8 +422,6 @@ static int _enable_wakeup(struct omap_hwmod *oh, u32 *v) */ static int _disable_wakeup(struct omap_hwmod *oh, u32 *v) { - u32 wakeup_mask; - if (!oh->class->sysc || !((oh->class->sysc->sysc_flags & SYSC_HAS_ENAWAKEUP) || (oh->class->sysc->idlemodes & SIDLE_SMART_WKUP) || @@ -438,9 +433,8 @@ static int _disable_wakeup(struct omap_hwmod *oh, u32 *v) return -EINVAL; } - wakeup_mask = (0x1 << oh->class->sysc->sysc_fields->enwkup_shift); - - *v &= ~wakeup_mask; + if (oh->class->sysc->sysc_flags & SYSC_HAS_ENAWAKEUP) + *v &= ~(0x1 << oh->class->sysc->sysc_fields->enwkup_shift); if (oh->class->sysc->idlemodes & SIDLE_SMART_WKUP) _set_slave_idlemode(oh, HWMOD_IDLEMODE_SMART, v);