From patchwork Wed Jul 25 16:38:16 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Todor Tomov X-Patchwork-Id: 10544429 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id E839D112E for ; Wed, 25 Jul 2018 16:42:18 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D79B12A763 for ; Wed, 25 Jul 2018 16:42:18 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id CC1A52A782; Wed, 25 Jul 2018 16:42:18 +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=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI 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 894152A763 for ; Wed, 25 Jul 2018 16:42:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729521AbeGYRvY (ORCPT ); Wed, 25 Jul 2018 13:51:24 -0400 Received: from ns.mm-sol.com ([37.157.136.199]:35587 "EHLO extserv.mm-sol.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729184AbeGYRvY (ORCPT ); Wed, 25 Jul 2018 13:51:24 -0400 Received: from mms-0439.qualcomm.mm-sol.com (unknown [37.157.136.206]) by extserv.mm-sol.com (Postfix) with ESMTPSA id E22AFCD59; Wed, 25 Jul 2018 19:38:53 +0300 (EEST) From: Todor Tomov To: mchehab@kernel.org, sakari.ailus@linux.intel.com, hans.verkuil@cisco.com, laurent.pinchart+renesas@ideasonboard.com, linux-media@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Todor Tomov Subject: [PATCH v4 07/34] media: camss: csiphy: Ensure clock mux config is done before the rest Date: Wed, 25 Jul 2018 19:38:16 +0300 Message-Id: <1532536723-19062-8-git-send-email-todor.tomov@linaro.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1532536723-19062-1-git-send-email-todor.tomov@linaro.org> References: <1532536723-19062-1-git-send-email-todor.tomov@linaro.org> Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Add a write memory barier after clock mux config and before the rest of the csiphy config. Signed-off-by: Todor Tomov --- drivers/media/platform/qcom/camss/camss-csiphy.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/media/platform/qcom/camss/camss-csiphy.c b/drivers/media/platform/qcom/camss/camss-csiphy.c index b37e691..2a9adcd 100644 --- a/drivers/media/platform/qcom/camss/camss-csiphy.c +++ b/drivers/media/platform/qcom/camss/camss-csiphy.c @@ -364,6 +364,7 @@ static int csiphy_stream_on(struct csiphy_device *csiphy) val |= cfg->csid_id; } writel_relaxed(val, csiphy->base_clk_mux); + wmb(); writel_relaxed(0x1, csiphy->base + CAMSS_CSI_PHY_GLBL_T_INIT_CFG0);