From patchwork Thu Jun 30 00:23:27 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vitaly Rodionov X-Patchwork-Id: 12900904 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 885B3C433EF for ; Thu, 30 Jun 2022 00:26:55 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id A1278165D; Thu, 30 Jun 2022 02:26:03 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz A1278165D DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1656548813; bh=xTFwqhrZ7klippbCIJYZ0E36leskEB0c5jP6pMW6EpI=; h=From:To:Subject:Date:In-Reply-To:References:Cc:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=WsVVIZv9+KeDlw/QBJ80EqHlt5qSHPmnF9mjYv2oVDAFeGu+inycpyI1YEqWvUiSC 5a5PygORjJSVFIYPb6aR2lSFpm7mqgq5w+9kdCQ4ym1K0KJzIDusKKWgBKAbPwm0i8 vHeM2bMiBQnwNBEd1DZgEpqM7D46h+HvB8oOgmmQ= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 3FAA6F8053E; Thu, 30 Jun 2022 02:24:15 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id E7821F80570; Thu, 30 Jun 2022 02:24:06 +0200 (CEST) Received: from mx0b-001ae601.pphosted.com (mx0a-001ae601.pphosted.com [67.231.149.25]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id 13BBCF80537 for ; Thu, 30 Jun 2022 02:23:49 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 13BBCF80537 Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key) header.d=cirrus.com header.i=@cirrus.com header.b="ozY4OE4i" Received: from pps.filterd (m0077473.ppops.net [127.0.0.1]) by mx0a-001ae601.pphosted.com (8.17.1.5/8.17.1.5) with ESMTP id 25U004kK009594; Wed, 29 Jun 2022 19:23:48 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cirrus.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding : content-type; s=PODMain02222019; bh=+QbXq9bn9RLwQ+qcOkiNiqeAFwoktMZKC+3daW2KG4Y=; b=ozY4OE4i/BEVzZjXPWUblefrY2+3Q7dyxvhbxagg4sKZG2fLMqE2DRpQT1AyVD2/7Blk 5CDjtQuxtaodYpZ+LiteRdrGQpmtq/219J7ZlhE2OZ1SwGIEeq4mjwmVx/4NljwBZ/OV 5xVZXR5VUhXrlbCPQtiLtL77kyYC+L9Su9t4LgJ6mc/rnfrnUdrlQOR0NECjiN4Uo7z7 KRDqvjOlY8o0VONYKyOSuG11LqfXloUzoqOCx0/x2XsoY59cj5c+/PaKAwgamBI81h7t mIcskA9FvTmBvlPBnpZPHsROOUcCgLANEYJypkfuagJATRtBFyFCV++/gZvR/wowkGUH Hw== Received: from ediex02.ad.cirrus.com ([84.19.233.68]) by mx0a-001ae601.pphosted.com (PPS) with ESMTPS id 3gwys2p9gn-2 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT); Wed, 29 Jun 2022 19:23:47 -0500 Received: from EDIEX01.ad.cirrus.com (198.61.84.80) by EDIEX02.ad.cirrus.com (198.61.84.81) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.28; Thu, 30 Jun 2022 01:23:46 +0100 Received: from ediswmail.ad.cirrus.com (198.61.86.93) by EDIEX01.ad.cirrus.com (198.61.84.80) with Microsoft SMTP Server id 15.1.2375.28 via Frontend Transport; Thu, 30 Jun 2022 01:23:46 +0100 Received: from vitaly-Legion-7-16ACHg6.ad.cirrus.com (unknown [198.90.238.125]) by ediswmail.ad.cirrus.com (Postfix) with ESMTP id C39662A9; Thu, 30 Jun 2022 00:23:45 +0000 (UTC) From: Vitaly Rodionov To: Jaroslav Kysela , Takashi Iwai , Mark Brown Subject: [PATCH v8 06/14] ALSA: hda: cs35l41: Support reading subsystem id from ACPI Date: Thu, 30 Jun 2022 01:23:27 +0100 Message-ID: <20220630002335.366545-7-vitalyr@opensource.cirrus.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220630002335.366545-1-vitalyr@opensource.cirrus.com> References: <20220630002335.366545-1-vitalyr@opensource.cirrus.com> MIME-Version: 1.0 X-Proofpoint-ORIG-GUID: GCufCKNPjsOjueThU4-fNEWhcyTOxczx X-Proofpoint-GUID: GCufCKNPjsOjueThU4-fNEWhcyTOxczx X-Proofpoint-Spam-Reason: safe Cc: patches@opensource.cirrus.com, alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, Stefan Binding X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" From: Stefan Binding On some laptop models, the ACPI contains the unique Subsystem ID, and this value should be preferred over the value from the HDA driver. Signed-off-by: Stefan Binding Signed-off-by: Vitaly Rodionov --- sound/pci/hda/cs35l41_hda.c | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) diff --git a/sound/pci/hda/cs35l41_hda.c b/sound/pci/hda/cs35l41_hda.c index b6e94e7b482a..2af3bb5ea1fb 100644 --- a/sound/pci/hda/cs35l41_hda.c +++ b/sound/pci/hda/cs35l41_hda.c @@ -544,6 +544,36 @@ static int cs35l41_hda_apply_properties(struct cs35l41_hda *cs35l41) return cs35l41_hda_channel_map(cs35l41->dev, 0, NULL, 1, &hw_cfg->spk_pos); } +static int cs35l41_get_acpi_sub_string(struct device *dev, struct acpi_device *adev, + const char **subsysid) +{ + struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; + union acpi_object *obj; + acpi_status status; + int ret = 0; + + status = acpi_evaluate_object(adev->handle, "_SUB", NULL, &buffer); + if (ACPI_SUCCESS(status)) { + obj = buffer.pointer; + if (obj->type == ACPI_TYPE_STRING) { + *subsysid = devm_kstrdup(dev, obj->string.pointer, GFP_KERNEL); + if (*subsysid == NULL) { + dev_err(dev, "Cannot allocate Subsystem ID"); + ret = -ENOMEM; + } + } else { + dev_warn(dev, "Warning ACPI _SUB did not return a string\n"); + ret = -ENODEV; + } + acpi_os_free(buffer.pointer); + } else { + dev_dbg(dev, "Warning ACPI _SUB failed: %#x\n", status); + ret = -ENODEV; + } + + return ret; +} + static int cs35l41_hda_read_acpi(struct cs35l41_hda *cs35l41, const char *hid, int id) { struct cs35l41_hw_cfg *hw_cfg = &cs35l41->hw_cfg; @@ -563,6 +593,12 @@ static int cs35l41_hda_read_acpi(struct cs35l41_hda *cs35l41, const char *hid, i physdev = get_device(acpi_get_first_physical_node(adev)); acpi_dev_put(adev); + ret = cs35l41_get_acpi_sub_string(cs35l41->dev, adev, &cs35l41->acpi_subsystem_id); + if (ret) + dev_info(cs35l41->dev, "No Subsystem ID found in ACPI: %d", ret); + else + dev_dbg(cs35l41->dev, "Subsystem ID %s found", cs35l41->acpi_subsystem_id); + property = "cirrus,dev-index"; ret = device_property_count_u32(physdev, property); if (ret <= 0)