From patchwork Mon Sep 19 17:17:29 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: John Keeping X-Patchwork-Id: 9340089 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 70C0B6077A for ; Mon, 19 Sep 2016 17:25:35 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 61CC028822 for ; Mon, 19 Sep 2016 17:25:35 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 565512937D; Mon, 19 Sep 2016 17:25:35 +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=-4.1 required=2.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_MED,T_DKIM_INVALID 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 0BDCD28822 for ; Mon, 19 Sep 2016 17:25:35 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 9716C6E54D; Mon, 19 Sep 2016 17:25:32 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from metanate.com (dougal.metanate.com [90.155.101.14]) by gabe.freedesktop.org (Postfix) with ESMTPS id BB48B6E54D for ; Mon, 19 Sep 2016 17:25:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=simple/simple; d=metanate.com; s=stronger; h=References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From; bh=1tO7HVdpcTJlNXcg0ueQOf4L0QAs4caBNd1WsFmft+4=; b=DdCVXLysYQCLB1hwYB74QTePLJFJVNLh4Yo3FvsEZr66fO2tTBcpxNFRwhxagtdneGBh710HIK7aP4FofwjuV4cWK6u4BQ7zv20pXefPFgrekKluGlW5aYiRk2rnDMcQtzhoFYNR/eXePbFARGCD+Y/QTTlf8SABDZINCiLqQKTKqowyhSMwLBTQ9MzFm6wgjC327/WwYknrvXbmbF3gBq1WlLIGsonlXsAGMTJHufdnwWmTnL5s4ulpDlXKOibF06v3bnPl/yoy7Rw5kR4gOcpd2/VBlUVTevtqxlu3AvRMHHoZiSemuRSq5RQncRrfyGa1bqL0Uhn/jhoglpkSIQ==; Received: from brian ([192.168.88.1] helo=leela.metanate.com) by shrek.metanate.com with esmtpsa (TLSv1.2:DHE-RSA-AES128-GCM-SHA256:128) (Exim 4.83_RC2) (envelope-from ) id 1bm2CX-00078x-8L; Mon, 19 Sep 2016 18:17:53 +0100 From: John Keeping To: Mark Yao Subject: [PATCH 16/27] drm/rockchip: dw-mipi-dsi: fix escape clock rate Date: Mon, 19 Sep 2016 18:17:29 +0100 Message-Id: <20160919171747.28512-20-john@metanate.com> X-Mailer: git-send-email 2.10.0.278.g4f427b1.dirty In-Reply-To: <20160919171747.28512-1-john@metanate.com> References: <20160919171747.28512-1-john@metanate.com> Cc: linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-rockchip@lists.infradead.org, linux-arm-kernel@lists.infradead.org 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 Use the same calculation as the vendor kernel to derive the escape clock speed. Signed-off-by: John Keeping --- drivers/gpu/drm/rockchip/dw-mipi-dsi.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/rockchip/dw-mipi-dsi.c b/drivers/gpu/drm/rockchip/dw-mipi-dsi.c index 7b4f4f150a0d..e621b66b9617 100644 --- a/drivers/gpu/drm/rockchip/dw-mipi-dsi.c +++ b/drivers/gpu/drm/rockchip/dw-mipi-dsi.c @@ -711,11 +711,13 @@ static void dw_mipi_dsi_disable(struct dw_mipi_dsi *dsi) static void dw_mipi_dsi_init(struct dw_mipi_dsi *dsi) { + u32 esc_clk_division = (dsi->lane_mbps >> 3) / 20 + 1; + dsi_write(dsi, DSI_PWR_UP, RESET); dsi_write(dsi, DSI_PHY_RSTZ, PHY_DISFORCEPLL | PHY_DISABLECLK | PHY_RSTZ | PHY_SHUTDOWNZ); dsi_write(dsi, DSI_CLKMGR_CFG, TO_CLK_DIVIDSION(10) | - TX_ESC_CLK_DIVIDSION(7)); + TX_ESC_CLK_DIVIDSION(esc_clk_division)); } static void dw_mipi_dsi_dpi_config(struct dw_mipi_dsi *dsi)