From patchwork Fri Jul 8 18:21:29 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Geert Uytterhoeven X-Patchwork-Id: 12911645 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 902CBC43334 for ; Fri, 8 Jul 2022 18:21:49 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 198EF10EBC4; Fri, 8 Jul 2022 18:21:45 +0000 (UTC) Received: from michel.telenet-ops.be (michel.telenet-ops.be [IPv6:2a02:1800:110:4::f00:18]) by gabe.freedesktop.org (Postfix) with ESMTPS id A2E7C10EBCF for ; Fri, 8 Jul 2022 18:21:40 +0000 (UTC) Received: from ramsan.of.borg ([84.195.186.194]) by michel.telenet-ops.be with bizsmtp id siMf2700o4C55Sk06iMfjY; Fri, 08 Jul 2022 20:21:40 +0200 Received: from rox.of.borg ([192.168.97.57]) by ramsan.of.borg with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.93) (envelope-from ) id 1o9sbg-002fKq-Tg; Fri, 08 Jul 2022 20:21:36 +0200 Received: from geert by rox.of.borg with local (Exim 4.93) (envelope-from ) id 1o9sbg-00BtQ5-AW; Fri, 08 Jul 2022 20:21:36 +0200 From: Geert Uytterhoeven To: Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter , Hans de Goede Subject: [PATCH 5/5] drm/modes: parse_cmdline: Add support for named modes containing dashes Date: Fri, 8 Jul 2022 20:21:29 +0200 Message-Id: <4788a9c346d6b650964402e0e26c33e739f02c7c.1657301107.git.geert@linux-m68k.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: References: MIME-Version: 1.0 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: linux-fbdev@vger.kernel.org, Geert Uytterhoeven , linux-m68k@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" It is fairly common for named video modes to contain dashes (e.g. "tt-mid" on Atari, "dblntsc-ff" on Amiga). Currently such mode names are not recognized, as the dash is considered to be a separator between mode name and bpp. Fix this by skipping any dashes that are not followed immediately by a digit when looking for the separator. Signed-off-by: Geert Uytterhoeven --- drivers/gpu/drm/drm_modes.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c index 7a00eb6df502e991..52e852518c6ad8e9 100644 --- a/drivers/gpu/drm/drm_modes.c +++ b/drivers/gpu/drm/drm_modes.c @@ -1828,6 +1828,8 @@ bool drm_mode_parse_command_line_for_connector(const char *mode_option, /* Try to locate the bpp and refresh specifiers, if any */ bpp_ptr = strchr(name, '-'); + while (bpp_ptr && !isdigit(bpp_ptr[1])) + bpp_ptr = strchr(bpp_ptr + 1, '-'); if (bpp_ptr) bpp_off = bpp_ptr - name;