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Thu, 22 Sep 2022 10:26:48 -0400 (EDT) From: Maxime Ripard Date: Thu, 22 Sep 2022 16:25:28 +0200 Subject: [PATCH v2 11/33] drm/modes: Only consider bpp and refresh before options MIME-Version: 1.0 Message-Id: <20220728-rpi-analog-tv-properties-v2-11-f733a0ed9f90@cerno.tech> References: <20220728-rpi-analog-tv-properties-v2-0-f733a0ed9f90@cerno.tech> In-Reply-To: <20220728-rpi-analog-tv-properties-v2-0-f733a0ed9f90@cerno.tech> To: Jernej Skrabec , Rodrigo Vivi , Ben Skeggs , David Airlie , Maxime Ripard , Joonas Lahtinen , Emma Anholt , Karol Herbst , Samuel Holland , Jani Nikula , Thomas Zimmermann , Daniel Vetter , Lyude Paul , Maarten Lankhorst , Tvrtko Ursulin , Chen-Yu Tsai Cc: Hans de Goede , nouveau@lists.freedesktop.org, Geert Uytterhoeven , Dave Stevenson , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Phil Elwell , intel-gfx@lists.freedesktop.org, Noralf Trønnes , Dom Cobley , linux-sunxi@lists.linux.dev, Maxime Ripard , Mateusz Kwiatkowski , dri-devel@lists.freedesktop.org X-Mailer: b4 0.10.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1592; i=maxime@cerno.tech; h=from:subject:message-id; bh=ehH+i59Vs/OowDE5NFRENhDEDWKHnp2mavFJ4/wcEk8=; b=owGbwMvMwCX2+D1vfrpE4FHG02pJDMk6BQEdq/PX9K6y2R4w8bddEENn17rOqilr9H5FnZWSzXwW l1TfUcrCIMbFICumyBIjbL4k7tSs151sfPNg5rAygQxh4OIUgIlMa2Jk2HqaR3mjKMvhis2sDY5Ktv HPj959KqvW2PH0yBePOpbgJQz/y1xTmidsqzKZWla2cOPyjNP3Vp+rXOH7TsZEPPXbo+3reQA= X-Developer-Key: i=maxime@cerno.tech; a=openpgp; fpr=BE5675C37E818C8B5764241C254BCFC56BF6CE8D X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220922_072653_311799_EDB1450F X-CRM114-Status: GOOD ( 12.08 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Some video= options might have a value that contains a dash. However, the command line parsing mode considers all dashes as the separator between the mode and the bpp count. Let's rework the parsing code a bit to only consider a dash as the bpp separator if it before a comma, the options separator. A follow-up patch will add a unit-test for this once such an option is introduced. Reviewed-by: Geert Uytterhoeven Signed-off-by: Maxime Ripard diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c index 76ab700f56ff..8742ee078fe6 100644 --- a/drivers/gpu/drm/drm_modes.c +++ b/drivers/gpu/drm/drm_modes.c @@ -2275,20 +2275,22 @@ bool drm_mode_parse_command_line_for_connector(const char *mode_option, name = mode_option; + /* Locate the start of named options */ + options_ptr = strchr(name, ','); + if (options_ptr) + options_off = options_ptr - name; + else + options_off = strlen(name); + /* Try to locate the bpp and refresh specifiers, if any */ - bpp_ptr = strchr(name, '-'); + bpp_ptr = strnchr(name, options_off, '-'); if (bpp_ptr) bpp_off = bpp_ptr - name; - refresh_ptr = strchr(name, '@'); + refresh_ptr = strnchr(name, options_off, '@'); if (refresh_ptr) refresh_off = refresh_ptr - name; - /* Locate the start of named options */ - options_ptr = strchr(name, ','); - if (options_ptr) - options_off = options_ptr - name; - /* Locate the end of the name / resolution, and parse it */ if (bpp_ptr) { mode_end = bpp_off; -- b4 0.10.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel