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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: CXGTiykmjnI7vvZVhOw2L5P4vPaRGXUTlDJw27CB5Lxfjv+BVSFeZDTECNCvDempxp/zQDmdjwgsA22F7hW3Hcn4ShKR1pPN7yV5jpeBpLkUgRBbN+n4MZopgOuAPn+kPVsNbJ12mpbH8Uy+Ju4pf9Ie/21Pi0TbXJdllZDw7XjPqERC7ELOJFqU+Kb0O+kIPP0vgv/TugOqT6G2tWFu8lU9hihCUzyoPSXGhrhsAkJxC+YISIpNWEp6x3yoAKdqU1R5XwnFpfTkH8Wjrau1kIY1yyWeceipjW9HOZ0C7iSXZqpWixpz3cUb/zcKm6g1FDsDN0416LbQmf6ZsVQpDR/NP+REL9d7u+pBy8Q/O92OiwQ8ORnJ7jgKiGGC6jOLRDE0+ifzrQU4F7nqzf9ktkt0lyn2Tc8KnMklmfv0EeyEzRtLDd/Fv4jm7UXkQ+rG X-OriginatorOrg: leica-geosystems.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 04 Jun 2026 06:50:12.6952 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: a275e5e0-dfe9-440c-32f6-08dec20586ea X-MS-Exchange-CrossTenant-Id: 1b16ab3e-b8f6-4fe3-9f3e-2db7fe549f6a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=1b16ab3e-b8f6-4fe3-9f3e-2db7fe549f6a;Ip=[193.8.40.99];Helo=[hexagon.com] X-MS-Exchange-CrossTenant-AuthSource: AMS0EPF00000199.eurprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DB9PR06MB7387 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260603_235016_955936_CE18B6ED X-CRM114-Status: GOOD ( 10.37 ) X-BeenThere: barebox@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:3::133 X-SA-Exim-Mail-From: barebox-bounces+lore=pengutronix.de@lists.infradead.org X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on metis.whiteo.stw.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-5.1 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.2 Subject: [PATCH v2 07/11] video: lcdif: default to RGB888_1X24 on VPL_GET_BUS_FORMAT failure X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.whiteo.stw.pengutronix.de) VPL_GET_BUS_FORMAT walks downstream through the bridge to the panel. Today neither fsl-ldb (which forwards the call) nor simple-panel (which reads a "bus-format" DT property) succeeds for DTs that follow the Linux panel-lvds binding -- that binding describes the LVDS data mapping in "data-mapping", not as a discrete bus-format integer. The driver currently aborts enable on the -EINVAL, leaving /dev/fb0 registered but nothing scanning out. Default to RGB888_1X24 instead -- the parallel format LCDIFv3 hands to every RGB888 bridge regardless of what the panel ultimately drives onto the wire. Signed-off-by: Johannes Schneider --- drivers/video/lcdif_kms.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/video/lcdif_kms.c b/drivers/video/lcdif_kms.c index a113f3e681..5487d1298c 100644 --- a/drivers/video/lcdif_kms.c +++ b/drivers/video/lcdif_kms.c @@ -364,8 +364,11 @@ static void lcdif_enable_fb_controller(struct fb_info *info) ret = vpl_ioctl(&lcdif->vpl, lcdif->id, VPL_GET_BUS_FORMAT, &vcstate.bus_format); if (ret < 0) { - dev_err(lcdif->dev, "Cannot determine bus format\n"); - return; + /* default for panel-lvds DTs lacking bus-format / bridges not answering */ + dev_warn(lcdif->dev, + "VPL_GET_BUS_FORMAT failed (%pe), defaulting to RGB888_1X24\n", + ERR_PTR(ret)); + vcstate.bus_format = MEDIA_BUS_FMT_RGB888_1X24; } ret = vpl_ioctl(&lcdif->vpl, lcdif->id, VPL_GET_DISPLAY_INFO, &display_info); -- 2.43.0