From patchwork Wed Oct 4 13:02:43 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Krzysztof Kozlowski X-Patchwork-Id: 729330 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 alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (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 1A885E7B610 for ; Wed, 4 Oct 2023 13:04:52 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id A6BD684A; Wed, 4 Oct 2023 15:04:00 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz A6BD684A DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1696424690; bh=zWOP0AVbKx31U0anPiTXOjk0OR4NF1ziZ/Fl3zTNXQ8=; h=From:To:Cc:Subject:Date:List-Id:List-Archive:List-Help:List-Owner: List-Post:List-Subscribe:List-Unsubscribe:From; b=ldB2zVsfeXUuw3kblKBZlfkXQgcYGXmkHxpISvqmGDwBPmt8tBW6932Z9Z4EV2zzF dmlYuJVa6+FPRCy5YAN7Dyg2gTz8uvMZXLBZyFHJCj9jN6epLnT7hl7QreRWiQ7K2o JdWico7YRmS/bfiHbXVItZqTXXzATRG4AG57GebQ= Received: by alsa1.perex.cz (Postfix, from userid 50401) id 7FCA9F80310; Wed, 4 Oct 2023 15:03:31 +0200 (CEST) Received: from mailman-core.alsa-project.org (mailman-core.alsa-project.org [10.254.200.10]) by alsa1.perex.cz (Postfix) with ESMTP id 112A7F8047D; Wed, 4 Oct 2023 15:03:31 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id B37A3F8047D; Wed, 4 Oct 2023 15:03:26 +0200 (CEST) Received: from mail-ed1-x52d.google.com (mail-ed1-x52d.google.com [IPv6:2a00:1450:4864:20::52d]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id 7E823F80166 for ; Wed, 4 Oct 2023 15:03:09 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 7E823F80166 Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key, unprotected) header.d=linaro.org header.i=@linaro.org header.a=rsa-sha256 header.s=google header.b=kCluzWIL Received: by mail-ed1-x52d.google.com with SMTP id 4fb4d7f45d1cf-533cbbd0153so3759287a12.0 for ; Wed, 04 Oct 2023 06:03:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1696424588; x=1697029388; darn=alsa-project.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=ZcFoJma4HsSRYQOjS15Jla4T5NRg0e9bZhu1IrMhFVc=; b=kCluzWILFyll5yffvgzAcyp+UPzPUO0F2IL5gsgM4JqTmbgK6Oh3RES1EK91YAajmF 3rM/bHjvpdamTeJlLhapfTlWQwiaZC3DviE8u/aGPdY7wt+S005NA89wsknVxgMzLNz6 k8HYgIOTV9It/PTsYmAd5MLg091CusFioo/Ch2SQNNs78evNnzx8W2ggBeGCWZVS6O+/ ebYZkEdFlhUyO/FplgteHp3K5rLvaQn/yJ/OkdxlNE0I/GKX0hEp0/Jjv2VezyfvTfFW WDglu6S2G7IJknFn/LGXcmQJK6iaEzaS2PgKtBS8Fs62LBRa6zdabnJBGYWdm2jjIteC iSVA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1696424588; x=1697029388; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=ZcFoJma4HsSRYQOjS15Jla4T5NRg0e9bZhu1IrMhFVc=; b=FtVkqAujGfQahVvA5NwUBTT9hL9b6CGt+okbp3EU9l1MCmwQ0/hnFS7ohbhfjk/rHl igGv46yDaV3YEIS5LJB2gPsjHJrVIJhEpNQcYb1eBDa0SwXxdNiyDYzHX6MXWab05Y9A UMdUl1ICpt9iwe1hrnLBQHK6WRzHWdMA3uCdOo5srfN0cXCkL5GKAr4g3ae2BI90DlNI KP3nve2AupGRVZovp6Ee9y33HnUQZHJfw79eJ4TjlZvkL8QzPNtM4ojj1MmOx6z3XmI0 Ff9lXH79FEq0MOJMl9QRLrJaHtnBD8oJe+2g/qysRNQRwWrQqFg+nNIXqo04KQZqpOOe dD6A== X-Gm-Message-State: AOJu0YzJ51RYq73SlhO8GY3dycTvupJTZNF2MDOte8YaTBSiym0lK6Ka jIzKGHxfZaw4xgo+oJAhXB/MV+5Ai41bJEK5suGXXQ== X-Google-Smtp-Source: AGHT+IHWViklCkFuofuCVXfDhfGBadhs+Z24ra+EL/fJ15/9k73iL5cn7B/Y01gFA1SHuQdewQRFGw== X-Received: by 2002:a05:6402:205:b0:534:8bdf:a258 with SMTP id t5-20020a056402020500b005348bdfa258mr1969252edv.31.1696424587666; Wed, 04 Oct 2023 06:03:07 -0700 (PDT) Received: from krzk-bin.. (5-157-101-10.dyn.eolo.it. [5.157.101.10]) by smtp.gmail.com with ESMTPSA id m3-20020aa7d343000000b00530ccd180a3sm2394704edr.97.2023.10.04.06.02.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 04 Oct 2023 06:03:01 -0700 (PDT) From: Krzysztof Kozlowski To: Vinod Koul , Bard Liao , Pierre-Louis Bossart , Sanyog Kale , Greg Kroah-Hartman , Philippe Ombredanne , Takashi Iwai , alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org Cc: Krzysztof Kozlowski , stable@vger.kernel.org Subject: [PATCH] soundwire: fix initializing sysfs for same devices on different buses Date: Wed, 4 Oct 2023 15:02:43 +0200 Message-Id: <20231004130243.493617-1-krzysztof.kozlowski@linaro.org> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Message-ID-Hash: QHGZBY3AZPKEYI3JBXCXEL5L37D536T7 X-Message-ID-Hash: QHGZBY3AZPKEYI3JBXCXEL5L37D536T7 X-MailFrom: krzysztof.kozlowski@linaro.org X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-alsa-devel.alsa-project.org-0; header-match-alsa-devel.alsa-project.org-1; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Mailman-Version: 3.3.8 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: If same devices with same device IDs are present on different soundwire buses, the probe fails due to conflicting device names and sysfs entries: sysfs: cannot create duplicate filename '/bus/soundwire/devices/sdw:0:0217:0204:00:0' The link ID is 0 for both devices, so they should be differentiated by bus ID. Add the bus ID so, the device names and sysfs entries look like: sdw:1:0:0217:0204:00:0 -> ../../../devices/platform/soc@0/6ab0000.soundwire-controller/sdw-master-1/sdw:1:0:0217:0204:00:0 sdw:3:0:0217:0204:00:0 -> ../../../devices/platform/soc@0/6b10000.soundwire-controller/sdw-master-3/sdw:3:0:0217:0204:00:0 Fixes: 7c3cd189b86d ("soundwire: Add Master registration") Cc: Signed-off-by: Krzysztof Kozlowski --- Sending as RFT, because I did not test it on that many devices and user-spaces. --- drivers/soundwire/slave.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/soundwire/slave.c b/drivers/soundwire/slave.c index c1c1a2ac293a..4db43ea53d47 100644 --- a/drivers/soundwire/slave.c +++ b/drivers/soundwire/slave.c @@ -39,14 +39,14 @@ int sdw_slave_add(struct sdw_bus *bus, slave->dev.fwnode = fwnode; if (id->unique_id == SDW_IGNORED_UNIQUE_ID) { - /* name shall be sdw:link:mfg:part:class */ - dev_set_name(&slave->dev, "sdw:%01x:%04x:%04x:%02x", - bus->link_id, id->mfg_id, id->part_id, + /* name shall be sdw:bus:link:mfg:part:class */ + dev_set_name(&slave->dev, "sdw:%01x:%01x:%04x:%04x:%02x", + bus->id, bus->link_id, id->mfg_id, id->part_id, id->class_id); } else { - /* name shall be sdw:link:mfg:part:class:unique */ - dev_set_name(&slave->dev, "sdw:%01x:%04x:%04x:%02x:%01x", - bus->link_id, id->mfg_id, id->part_id, + /* name shall be sdw:bus:link:mfg:part:class:unique */ + dev_set_name(&slave->dev, "sdw:%01x:%01x:%04x:%04x:%02x:%01x", + bus->id, bus->link_id, id->mfg_id, id->part_id, id->class_id, id->unique_id); }