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Thu, 14 Sep 2023 10:25:28 -0500 (CDT) Received: from ediex02.ad.cirrus.com (198.61.84.81) by ediex01.ad.cirrus.com (198.61.84.80) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.37; Thu, 14 Sep 2023 16:25:27 +0100 Received: from ediswmail.ad.cirrus.com (198.61.86.93) by anon-ediex02.ad.cirrus.com (198.61.84.81) with Microsoft SMTP Server id 15.2.1118.37 via Frontend Transport; Thu, 14 Sep 2023 16:25:27 +0100 Received: from EDIN4L06LR3.ad.cirrus.com (EDIN4L06LR3.ad.cirrus.com [198.61.65.215]) by ediswmail.ad.cirrus.com (Postfix) with ESMTP id E561F3563; Thu, 14 Sep 2023 15:25:26 +0000 (UTC) From: Richard Fitzgerald To: CC: , , , Richard Fitzgerald Subject: [PATCH v2] ALSA: hda: cs35l56: Fix missing RESET GPIO if _SUB is missing Date: Thu, 14 Sep 2023 16:25:25 +0100 Message-ID: <20230914152525.20829-1-rf@opensource.cirrus.com> X-Mailer: git-send-email 2.30.2 MIME-Version: 1.0 X-Proofpoint-GUID: hvb46J8ibE00wLVH5auGSVmnOad4e6AQ X-Proofpoint-ORIG-GUID: hvb46J8ibE00wLVH5auGSVmnOad4e6AQ X-Proofpoint-Spam-Reason: safe Message-ID-Hash: 2W3PPY4M5CSI3IY67JI6DYH3DT7WG4VO X-Message-ID-Hash: 2W3PPY4M5CSI3IY67JI6DYH3DT7WG4VO X-MailFrom: prvs=46218c6399=rf@opensource.cirrus.com 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: In cs35l56_hda_read_acpi() do not return if ACPI _SUB is missing. A missing _SUB means that the driver cannot load a system-specific firmware, because the firmware is identified by the _SUB. But it can fallback to a generic firmware. Unfortunately this was being handled by immediately returning 0, which would skip the remaining ACPI configuration in cs35l56_hda_read_acpi() and so it would not get the RESET GPIO. Signed-off-by: Richard Fitzgerald Fixes: 73cfbfa9caea ("ALSA: hda/cs35l56: Add driver for Cirrus Logic CS35L56 amplifier") --- sound/pci/hda/cs35l56_hda.c | 12 +++++------- 1 file changed, 5 insertions(+), 7 deletions(-) diff --git a/sound/pci/hda/cs35l56_hda.c b/sound/pci/hda/cs35l56_hda.c index bc75865b5de8..87ffe8fbff99 100644 --- a/sound/pci/hda/cs35l56_hda.c +++ b/sound/pci/hda/cs35l56_hda.c @@ -865,15 +865,13 @@ static int cs35l56_hda_read_acpi(struct cs35l56_hda *cs35l56, int id) sub = acpi_get_subsystem_id(ACPI_HANDLE(cs35l56->base.dev)); if (IS_ERR(sub)) { - /* If no ACPI SUB, return 0 and fallback to legacy firmware path, otherwise fail */ - if (PTR_ERR(sub) == -ENODATA) - return 0; - else - return PTR_ERR(sub); + dev_info(cs35l56->base.dev, + "Read ACPI _SUB failed(%ld): fallback to generic firmware\n", + PTR_ERR(sub)); + } else { + cs35l56->system_name = sub; } - cs35l56->system_name = sub; - cs35l56->base.reset_gpio = devm_gpiod_get_index_optional(cs35l56->base.dev, "reset", cs35l56->index,