From patchwork Fri Apr 1 16:21:53 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marek Vasut X-Patchwork-Id: 12798477 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id CD030C433EF for ; Fri, 1 Apr 2022 16:22:20 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id D3DA310E2E7; Fri, 1 Apr 2022 16:22:19 +0000 (UTC) Received: from phobos.denx.de (phobos.denx.de [85.214.62.61]) by gabe.freedesktop.org (Postfix) with ESMTPS id 42DD910E2E7 for ; Fri, 1 Apr 2022 16:22:18 +0000 (UTC) Received: from tr.lan (ip-89-176-112-137.net.upcbroadband.cz [89.176.112.137]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) (Authenticated sender: marex@denx.de) by phobos.denx.de (Postfix) with ESMTPSA id 7F90C83B06; Fri, 1 Apr 2022 18:22:16 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=denx.de; s=phobos-20191101; t=1648830136; bh=SvLv1hoF4X4/Qv0A4qHRi+g3E4Wd9TLQiv+s+PnsWI0=; h=From:To:Cc:Subject:Date:From; b=Dz/hd9vAxCxYSF9v01iIFiB9yQ99t9KgdaDzwrjOstZMWRaVFP0ub3Pt1VL8PwFhV 2eyNdNbf4Jd6vuYDNdiWKUZEYo9mjXXzEqnjtCQ5mtL6+EfolUJwQDY7SVUciMT5iF ypF4oPk2ZxdIdrQ7gjrhq0mkJm/72k+DloZN2gQFDtNnLh0aeYqFhhC95y8j36hPAV 5rexx46tYIwnUb3NTY1UK+vOAATk0l1NUEdsiqPhQYN/nn+KRSpaQzWxbMMF3rqF1N 1A0S8uUGSQlNl5yZpxkiw6VsI8h1kMOeDRUCOLpyvdDRbKw5afd4TY+gcfKc122+m9 BYcyqi3+zeeBA== From: Marek Vasut To: dri-devel@lists.freedesktop.org Subject: [PATCH v2 1/2] drm/panel: lvds: Simplify mode parsing Date: Fri, 1 Apr 2022 18:21:53 +0200 Message-Id: <20220401162154.295152-1-marex@denx.de> X-Mailer: git-send-email 2.35.1 MIME-Version: 1.0 X-Virus-Scanned: clamav-milter 0.103.5 at phobos.denx.de X-Virus-Status: Clean X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Marek Vasut , Christoph Niedermaier , Daniel Vetter , robert.foss@linaro.org, Laurent Pinchart , Thomas Zimmermann , Dmitry Osipenko , Sam Ravnborg Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" The mode parsing is currently implemented in three steps: of_get_display_timing() - DT panel-timing to struct display_timing videomode_from_timing() - struct display_timing to struct videomode drm_display_mode_from_videomode() - struct videomode to struct drm_display_mode Replace all that with simple of_get_drm_panel_display_mode() call, which already populates struct drm_display_mode and then duplicate that mode in panel_lvds_get_modes() each time, since the mode does not change. Nice bonus is the bus_flags parsed by of_get_drm_panel_display_mode() out of panel-timing DT node, which is used in subsequent patch to fix handling of 'de-active' DT property. Tested-by: Christoph Niedermaier Signed-off-by: Marek Vasut Cc: Christoph Niedermaier Cc: Daniel Vetter Cc: Dmitry Osipenko Cc: Laurent Pinchart Cc: Robert Foss Cc: Sam Ravnborg Cc: Thomas Zimmermann To: dri-devel@lists.freedesktop.org Reviewed-by: Laurent Pinchart --- V2: - Reinstate mandatory width-mm/height-mm DT property check - Collect TB from Christoph --- drivers/gpu/drm/panel/panel-lvds.c | 22 +++++++++------------- 1 file changed, 9 insertions(+), 13 deletions(-) diff --git a/drivers/gpu/drm/panel/panel-lvds.c b/drivers/gpu/drm/panel/panel-lvds.c index 27a1c9923b09..6422868c1089 100644 --- a/drivers/gpu/drm/panel/panel-lvds.c +++ b/drivers/gpu/drm/panel/panel-lvds.c @@ -30,7 +30,8 @@ struct panel_lvds { const char *label; unsigned int width; unsigned int height; - struct videomode video_mode; + struct drm_display_mode dmode; + u32 bus_flags; unsigned int bus_format; bool data_mirror; @@ -87,16 +88,15 @@ static int panel_lvds_get_modes(struct drm_panel *panel, struct panel_lvds *lvds = to_panel_lvds(panel); struct drm_display_mode *mode; - mode = drm_mode_create(connector->dev); + mode = drm_mode_duplicate(connector->dev, &lvds->dmode); if (!mode) return 0; - drm_display_mode_from_videomode(&lvds->video_mode, mode); mode->type |= DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED; drm_mode_probed_add(connector, mode); - connector->display_info.width_mm = lvds->width; - connector->display_info.height_mm = lvds->height; + connector->display_info.width_mm = lvds->dmode.width_mm; + connector->display_info.height_mm = lvds->dmode.height_mm; drm_display_info_set_bus_formats(&connector->display_info, &lvds->bus_format, 1); connector->display_info.bus_flags = lvds->data_mirror @@ -116,7 +116,6 @@ static const struct drm_panel_funcs panel_lvds_funcs = { static int panel_lvds_parse_dt(struct panel_lvds *lvds) { struct device_node *np = lvds->dev->of_node; - struct display_timing timing; int ret; ret = of_drm_get_panel_orientation(np, &lvds->orientation); @@ -125,23 +124,20 @@ static int panel_lvds_parse_dt(struct panel_lvds *lvds) return ret; } - ret = of_get_display_timing(np, "panel-timing", &timing); + ret = of_get_drm_panel_display_mode(np, &lvds->dmode, &lvds->bus_flags); if (ret < 0) { dev_err(lvds->dev, "%pOF: problems parsing panel-timing (%d)\n", np, ret); return ret; } - videomode_from_timing(&timing, &lvds->video_mode); - - ret = of_property_read_u32(np, "width-mm", &lvds->width); - if (ret < 0) { + if (lvds->dmode.width_mm == 0) { dev_err(lvds->dev, "%pOF: invalid or missing %s DT property\n", np, "width-mm"); return -ENODEV; } - ret = of_property_read_u32(np, "height-mm", &lvds->height); - if (ret < 0) { + + if (lvds->dmode.height_mm == 0) { dev_err(lvds->dev, "%pOF: invalid or missing %s DT property\n", np, "height-mm"); return -ENODEV;