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Mon, 29 Aug 2022 09:13:20 -0400 (EDT) From: Maxime Ripard To: Maxime Ripard , Ben Skeggs , David Airlie , Chen-Yu Tsai , Thomas Zimmermann , Jani Nikula , Lyude Paul , Philipp Zabel , Maarten Lankhorst , Rodrigo Vivi , Tvrtko Ursulin , Jernej Skrabec , Samuel Holland , Karol Herbst , =?utf-8?q?Noralf_Tr=C3=B8nnes?= , Emma Anholt , Daniel Vetter , Joonas Lahtinen Date: Mon, 29 Aug 2022 15:11:26 +0200 Message-Id: <20220728-rpi-analog-tv-properties-v2-12-459522d653a7@cerno.tech> X-Mailer: git-send-email 2.37.1 In-Reply-To: <20220728-rpi-analog-tv-properties-v2-0-459522d653a7@cerno.tech> References: <20220728-rpi-analog-tv-properties-v2-0-459522d653a7@cerno.tech> MIME-Version: 1.0 X-Mailer: b4 0.10.0-dev-65ba7 X-Developer-Signature: v=1; a=openpgp-sha256; l=1069; i=maxime@cerno.tech; h=from:subject:message-id; bh=Ce+TyjEkD5ms8VGGkYRw7EWiyTTKy0ScuMQtAi1SOoM=; b=owGbwMvMwCX2+D1vfrpE4FHG02pJDMk8u+STGJ7KXdfiCpu8Ly6soUhh28WTTV9uP/32bVpCR9ya VT6nO0pZGMS4GGTFFFlihM2XxJ2a9bqTjW8ezBxWJpAhDFycAjARk2eMDDOtWWM3xD1IOvu6Yy7n9E XnpnI6a4mdEj0moHq09aWj+0lGhmbh6am2ujO65oV/3/+qPFxaidez/2Xpil3L5COOa6z4yg4A X-Developer-Key: i=maxime@cerno.tech; a=openpgp; fpr=BE5675C37E818C8B5764241C254BCFC56BF6CE8D Subject: [Intel-gfx] [PATCH v2 12/41] drm/modes: parse_cmdline: Add support for named modes containing dashes X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Dom Cobley , Dave Stevenson , nouveau@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-sunxi@lists.linux.dev, Geert Uytterhoeven , Maxime Ripard , Mateusz Kwiatkowski , Phil Elwell , linux-arm-kernel@lists.infradead.org Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" From: Geert Uytterhoeven 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 Reviewed-by: Hans de Goede Signed-off-by: Maxime Ripard diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c index b4e1ff56b4d8..99a21e5cd00d 100644 --- a/drivers/gpu/drm/drm_modes.c +++ b/drivers/gpu/drm/drm_modes.c @@ -2263,6 +2263,8 @@ bool drm_mode_parse_command_line_for_connector(const char *mode_option, /* Try to locate the bpp and refresh specifiers, if any */ bpp_ptr = strnchr(name, options_off, '-'); + while (bpp_ptr && !isdigit(bpp_ptr[1])) + bpp_ptr = strnchr(bpp_ptr + 1, options_off, '-'); if (bpp_ptr) bpp_off = bpp_ptr - name;