Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754274AbcCHQyO (ORCPT ); Tue, 8 Mar 2016 11:54:14 -0500 Received: from ring0.de ([5.45.101.7]:33630 "EHLO ring0.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933095AbcCHQuI (ORCPT ); Tue, 8 Mar 2016 11:50:08 -0500 X-Spam-Report: * -1.0 ALL_TRUSTED Passed through trusted hosts only via SMTP * 0.0 HEADER_FROM_DIFFERENT_DOMAINS From and EnvelopeFrom 2nd level mail * domains are different * -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% * [score: 0.0000] From: Sebastian Reichel To: Sebastian Reichel , Tony Lindgren , Aaro Koskinen , Tomi Valkeinen Cc: Laurent Pinchart , David Airlie , linux-omap@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Subject: [PATCH 23/23] drm: omapdrm: panel-dsi-cm: provide timings methods for omapdrm Date: Tue, 8 Mar 2016 17:39:55 +0100 Message-Id: <1457455195-1938-24-git-send-email-sre@kernel.org> X-Mailer: git-send-email 2.7.0 In-Reply-To: <1457455195-1938-1-git-send-email-sre@kernel.org> References: <1457455195-1938-1-git-send-email-sre@kernel.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1983 Lines: 67 Provide omapdrm with methods to acquire timings and check them later, so that it can properly initialize the display. Signed-off-by: Sebastian Reichel --- drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c | 38 +++++++++++++++++++++++++ 1 file changed, 38 insertions(+) diff --git a/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c b/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c index 196fe8d18ff4..edd1298b3a71 100644 --- a/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c +++ b/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c @@ -1163,6 +1163,41 @@ static void dsicm_ulps_work(struct work_struct *work) mutex_unlock(&ddata->lock); } +static void dsicm_get_timings(struct omap_dss_device *dssdev, + struct omap_video_timings *timings) +{ + struct panel_drv_data *ddata = to_panel_data(dssdev); + + *timings = ddata->timings; +} + +static int dsicm_check_timings(struct omap_dss_device *dssdev, + struct omap_video_timings *timings) +{ + struct panel_drv_data *ddata = to_panel_data(dssdev); + int ret = 0; + + if (timings->x_res != ddata->timings.x_res) + ret = -EINVAL; + else if (timings->y_res != ddata->timings.y_res) + ret = -EINVAL; + + /* pixelclock is modified by dsi, so not easily checkable */ + + /* vfp, vbp, hfp, hbp are (re-)configured automatically by dsi */ + + if (ret) { + dev_warn(dssdev->dev, "wrong resolution: %d x %d", + timings->x_res, timings->y_res); + dev_warn(dssdev->dev, "panel resolution: %d x %d", + ddata->timings.x_res, ddata->timings.y_res); + } else { + dev_dbg(dssdev->dev, "mode check: ok"); + } + + return ret; +} + static struct omap_dss_driver dsicm_ops = { .connect = dsicm_connect, .disconnect = dsicm_disconnect, @@ -1180,6 +1215,9 @@ static struct omap_dss_driver dsicm_ops = { .get_te = dsicm_get_te, .memory_read = dsicm_memory_read, + + .get_timings = dsicm_get_timings, + .check_timings = dsicm_check_timings, }; static int dsicm_probe_pdata(struct platform_device *pdev) -- 2.7.0