From patchwork Wed Dec 11 18:59:01 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tony Lindgren X-Patchwork-Id: 11286063 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 02AC314E3 for ; Wed, 11 Dec 2019 18:59:15 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id D571920836 for ; Wed, 11 Dec 2019 18:59:14 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="IuMSo/oR" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D571920836 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=atomide.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-Id:Date:Subject:To :From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=d4RGsTgnTCc444/1vKA2jtrtBggAxo7wP/HbdeA+Yf8=; b=IuMSo/oRrNqkFy RRaZptPEV4sqdxGqrTTIKlLrRJXEPf1wsDevfDxt8nyHL3A8lfEIkf+Nh0I0vsSxYx13k9C559D51 Bfc2jG64cWQULHYy9ZpaYtPspvGpTOV0q+G/vrm7R2yov523B/3w/jNjPPoOoYnkUoiReDCo43LvC 7PiQmEyNd48elNc4sKVakDNzsW5NiVdw7N8a/KsUX273gmiayQsl2y21ytxgruh3+M+qXszFwGHdf vl2PmdQKqQQOZ0ieM0O1AMNcw2+k9Jf0mj3YbJVnKHxxf+6zs54fUEAcXX5FIPUcNJKT9hsi4KxbY O3VwG7DriPYEY4iG8gxA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1if7Ca-0005vM-Vo; Wed, 11 Dec 2019 18:59:12 +0000 Received: from muru.com ([72.249.23.125]) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1if7CY-0005uT-2h for linux-arm-kernel@lists.infradead.org; Wed, 11 Dec 2019 18:59:11 +0000 Received: from hillo.muru.com (localhost [127.0.0.1]) by muru.com (Postfix) with ESMTP id EDCF980FA; Wed, 11 Dec 2019 18:59:43 +0000 (UTC) From: Tony Lindgren To: linux-omap@vger.kernel.org Subject: [PATCH] bus: ti-sysc: Fix missing reset delay handling Date: Wed, 11 Dec 2019 10:59:01 -0800 Message-Id: <20191211185901.9879-1-tony@atomide.com> X-Mailer: git-send-email 2.24.1 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191211_105910_159875_CB29148E X-CRM114-Status: UNSURE ( 5.99 ) X-CRM114-Notice: Please train this message. X-Spam-Score: 0.0 (/) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (0.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [72.249.23.125 listed in list.dnswl.org] 0.0 SPF_NONE SPF: sender does not publish an SPF Record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Nishanth Menon , Tero Kristo , Dave Gerlach , Keerthy , linux-kernel@vger.kernel.org, "Andrew F . Davis" , Peter Ujfalusi , Faiz Abbas , Greg Kroah-Hartman , Suman Anna , linux-arm-kernel@lists.infradead.org, Roger Quadros Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org We have dts property for "ti,sysc-delay-us", and we're using it, but the wait after OCP softreset only happens if devices are probed in legacy mode. Let's add a delay after writing the OCP softreset when specified. Fixes: e0db94fe87da ("bus: ti-sysc: Make OCP reset work for sysstatus and sysconfig reset bits") Cc: Keerthy Signed-off-by: Tony Lindgren Tested-by: Keerthy --- drivers/bus/ti-sysc.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c --- a/drivers/bus/ti-sysc.c +++ b/drivers/bus/ti-sysc.c @@ -1590,6 +1590,10 @@ static int sysc_reset(struct sysc *ddata) sysc_val |= sysc_mask; sysc_write(ddata, sysc_offset, sysc_val); + if (ddata->cfg.srst_udelay) + usleep_range(ddata->cfg.srst_udelay, + ddata->cfg.srst_udelay * 2); + if (ddata->clk_enable_quirk) ddata->clk_enable_quirk(ddata);