From patchwork Thu Apr 12 03:53:54 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "J, KEERTHY" X-Patchwork-Id: 10337797 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id CB0B3603B5 for ; Thu, 12 Apr 2018 03:55:32 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id BC9222857E for ; Thu, 12 Apr 2018 03:55:32 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id B0753285A4; Thu, 12 Apr 2018 03:55:32 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.8 required=2.0 tests=BAYES_00,DKIM_SIGNED, MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI, T_DKIM_INVALID autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 24F812857E for ; Thu, 12 Apr 2018 03:55:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752878AbeDLDz3 (ORCPT ); Wed, 11 Apr 2018 23:55:29 -0400 Received: from lelnx194.ext.ti.com ([198.47.27.80]:58132 "EHLO lelnx194.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752826AbeDLDz0 (ORCPT ); Wed, 11 Apr 2018 23:55:26 -0400 Received: from dlelxv90.itg.ti.com ([172.17.2.17]) by lelnx194.ext.ti.com (8.15.1/8.15.1) with ESMTP id w3C3t4UQ027036; Wed, 11 Apr 2018 22:55:04 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ti.com; s=ti-com-17Q1; t=1523505304; bh=CMTePbUvlTMINtVKyZTnSauPo6SWpqhIMqsuwB//0gg=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=Q/5I3x1IxBofoLAlji2oTNXgFvfdAmMuNDpA1IiF5KGHlH789JcQDj3tTj9hP831G tuu2s9d4mVoMK1wy2/vNG9FdqeG1tf3Dmc5iWUbVH/bsXlhsYRBa5EhSJBmVqbJtoQ m2F2fz1PL9Wj6cQvCXYEw1wFk5HV4TTqZdumoc70= Received: from DFLE114.ent.ti.com (dfle114.ent.ti.com [10.64.6.35]) by dlelxv90.itg.ti.com (8.14.3/8.13.8) with ESMTP id w3C3t4gO008242; Wed, 11 Apr 2018 22:55:04 -0500 Received: from DFLE109.ent.ti.com (10.64.6.30) by DFLE114.ent.ti.com (10.64.6.35) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1261.35; Wed, 11 Apr 2018 22:55:03 -0500 Received: from dflp33.itg.ti.com (10.64.6.16) by DFLE109.ent.ti.com (10.64.6.30) with Microsoft SMTP Server (version=TLS1_0, cipher=TLS_RSA_WITH_AES_256_CBC_SHA) id 15.1.1261.35 via Frontend Transport; Wed, 11 Apr 2018 22:55:03 -0500 Received: from ula0393675.india.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by dflp33.itg.ti.com (8.14.3/8.13.8) with ESMTP id w3C3sQpq010150; Wed, 11 Apr 2018 22:55:00 -0500 From: Keerthy To: , , CC: , , , , , , , , Subject: [PATCH 09/14] ARM: OMAP2: Drop the concept of certain power domains not being able to lose context. Date: Thu, 12 Apr 2018 09:23:54 +0530 Message-ID: <1523505239-16229-10-git-send-email-j-keerthy@ti.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1523505239-16229-1-git-send-email-j-keerthy@ti.com> References: <1523505239-16229-1-git-send-email-j-keerthy@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Russ Dill It isn't much of a win, and with hibernation, everything loses context. So Drop the concept of certain power domains not being able to lose context. Signed-off-by: Russ Dill Signed-off-by: Keerthy --- arch/arm/mach-omap2/powerdomain.c | 41 --------------------------------------- arch/arm/mach-omap2/powerdomain.h | 1 - 2 files changed, 42 deletions(-) diff --git a/arch/arm/mach-omap2/powerdomain.c b/arch/arm/mach-omap2/powerdomain.c index ee693f6..f180d22 100644 --- a/arch/arm/mach-omap2/powerdomain.c +++ b/arch/arm/mach-omap2/powerdomain.c @@ -1160,47 +1160,6 @@ int pwrdm_get_context_loss_count(struct powerdomain *pwrdm) } /** - * pwrdm_can_ever_lose_context - can this powerdomain ever lose context? - * @pwrdm: struct powerdomain * - * - * Given a struct powerdomain * @pwrdm, returns 1 if the powerdomain - * can lose either memory or logic context or if @pwrdm is invalid, or - * returns 0 otherwise. This function is not concerned with how the - * powerdomain registers are programmed (i.e., to go off or not); it's - * concerned with whether it's ever possible for this powerdomain to - * go off while some other part of the chip is active. This function - * assumes that every powerdomain can go to either ON or INACTIVE. - */ -bool pwrdm_can_ever_lose_context(struct powerdomain *pwrdm) -{ - int i; - - if (!pwrdm) { - pr_debug("powerdomain: %s: invalid powerdomain pointer\n", - __func__); - return 1; - } - - if (pwrdm->pwrsts & PWRSTS_OFF) - return 1; - - if (pwrdm->pwrsts & PWRSTS_RET) { - if (pwrdm->pwrsts_logic_ret & PWRSTS_OFF) - return 1; - - for (i = 0; i < pwrdm->banks; i++) - if (pwrdm->pwrsts_mem_ret[i] & PWRSTS_OFF) - return 1; - } - - for (i = 0; i < pwrdm->banks; i++) - if (pwrdm->pwrsts_mem_on[i] & PWRSTS_OFF) - return 1; - - return 0; -} - -/** * pwrdm_save_context - save powerdomain registers * * Register state is going to be lost due to a suspend or hibernate diff --git a/arch/arm/mach-omap2/powerdomain.h b/arch/arm/mach-omap2/powerdomain.h index 9a907fb..a5bdc28 100644 --- a/arch/arm/mach-omap2/powerdomain.h +++ b/arch/arm/mach-omap2/powerdomain.h @@ -247,7 +247,6 @@ u8 pwrdm_get_valid_lp_state(struct powerdomain *pwrdm, int pwrdm_pre_transition(struct powerdomain *pwrdm); int pwrdm_post_transition(struct powerdomain *pwrdm); int pwrdm_get_context_loss_count(struct powerdomain *pwrdm); -bool pwrdm_can_ever_lose_context(struct powerdomain *pwrdm); extern int omap_set_pwrdm_state(struct powerdomain *pwrdm, u8 state);