From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5197EC33C9E for ; Sat, 11 Jan 2020 10:25:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1ADB420848 for ; Sat, 11 Jan 2020 10:25:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1578738338; bh=7/bEWBR228SG8GvLa5XKG2h7lDVFYZfEP4V+HyfEkUo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=NDkW0w1RfX9WxX3Ls9yOGkBmxrHk02ijsR7884UfZbNonkmvLPEEcyubChk9naLIB QalNZjxH9jlWTKBn5zPRHS6aIm9m3UXQE2m2K+Uu/Dv3FoUgaVIBHxTtqr6D/T/IZ0 GC+qD/NSFfl4sRmdJFlyUGNhJzNIKei03dzuZ8Dc= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731065AbgAKKZh (ORCPT ); Sat, 11 Jan 2020 05:25:37 -0500 Received: from mail.kernel.org ([198.145.29.99]:56604 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730740AbgAKKZd (ORCPT ); Sat, 11 Jan 2020 05:25:33 -0500 Received: from localhost (unknown [62.119.166.9]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 8A38F205F4; Sat, 11 Jan 2020 10:25:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1578738333; bh=7/bEWBR228SG8GvLa5XKG2h7lDVFYZfEP4V+HyfEkUo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ztxeUfrh8Qla4KTBATtXzxyLOScAutYnGQrSxu6O2kwhhzPlbhLxtLAnyd1sw9IsM HZJhZqCSnYTSS429ISMxmdY1yijdKVCQQof3x9UvepdSiR2jYsyBoL9VlkW+jqw52F QcaytTiEcQWvZGVFDJ4wXvGTPwfXz8+5Hmqf+Gm4= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Keerthy , Tony Lindgren , Sasha Levin Subject: [PATCH 5.4 067/165] bus: ti-sysc: Fix missing reset delay handling Date: Sat, 11 Jan 2020 10:49:46 +0100 Message-Id: <20200111094926.742694728@linuxfoundation.org> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20200111094921.347491861@linuxfoundation.org> References: <20200111094921.347491861@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Tony Lindgren [ Upstream commit e709ed70d122e94cb426b1e1f905829eae19a009 ] 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 Signed-off-by: Sasha Levin --- 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 index 2b6670daf7fc..34bd9bf4e68a 100644 --- a/drivers/bus/ti-sysc.c +++ b/drivers/bus/ti-sysc.c @@ -1594,6 +1594,10 @@ 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); -- 2.20.1