From patchwork Thu Sep 22 14:57:19 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tobias Jakobi X-Patchwork-Id: 9345479 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 2E2D260757 for ; Thu, 22 Sep 2016 14:59:22 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 20E832AAF3 for ; Thu, 22 Sep 2016 14:59:22 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 154642AB45; Thu, 22 Sep 2016 14:59:22 +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=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id B0AB82AAF3 for ; Thu, 22 Sep 2016 14:59:21 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 2A6676E8A3; Thu, 22 Sep 2016 14:59:21 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from smtp.math.uni-bielefeld.de (smtp.math.uni-bielefeld.de [129.70.45.10]) by gabe.freedesktop.org (Postfix) with ESMTPS id 3A5F16E8A3 for ; Thu, 22 Sep 2016 14:59:19 +0000 (UTC) Received: from chidori.dhcp.uni-bielefeld.de (unknown [10.68.161.86]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (Client did not present a certificate) by smtp.math.uni-bielefeld.de (Postfix) with ESMTPSA id 875C65FFA7; Thu, 22 Sep 2016 16:59:17 +0200 (CEST) From: Tobias Jakobi To: linux-samsung-soc@vger.kernel.org Subject: [PATCH v2 3/4] drm/exynos: mixer: simplify loop in vp_win_reset() Date: Thu, 22 Sep 2016 16:57:19 +0200 Message-Id: <1474556240-14055-4-git-send-email-tjakobi@math.uni-bielefeld.de> X-Mailer: git-send-email 2.7.3 In-Reply-To: <1474556240-14055-1-git-send-email-tjakobi@math.uni-bielefeld.de> References: <1474556240-14055-1-git-send-email-tjakobi@math.uni-bielefeld.de> Cc: Tobias Jakobi , dri-devel@lists.freedesktop.org, m.szyprowski@samsung.com X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP A simple while loop should do the same here. Signed-off-by: Tobias Jakobi --- drivers/gpu/drm/exynos/exynos_mixer.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/exynos/exynos_mixer.c b/drivers/gpu/drm/exynos/exynos_mixer.c index c3dad66..4f39d6b 100644 --- a/drivers/gpu/drm/exynos/exynos_mixer.c +++ b/drivers/gpu/drm/exynos/exynos_mixer.c @@ -736,10 +736,10 @@ static void mixer_graph_buffer(struct mixer_context *ctx, static void vp_win_reset(struct mixer_context *ctx) { struct mixer_resources *res = &ctx->mixer_res; - int tries = 100; + unsigned int tries = 100; vp_reg_write(res, VP_SRESET, VP_SRESET_PROCESSING); - for (tries = 100; tries; --tries) { + while (tries--) { /* waiting until VP_SRESET_PROCESSING is 0 */ if (~vp_reg_read(res, VP_SRESET) & VP_SRESET_PROCESSING) break;