From patchwork Wed Jun 7 09:21:52 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yanteng Si X-Patchwork-Id: 13274061 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 E4E24C7EE2E for ; Fri, 9 Jun 2023 14:49:06 +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 A8633208; Fri, 9 Jun 2023 16:48:14 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz A8633208 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1686322144; bh=VFuQDOwOKGBmFGktbg29b9I5qIBycBgJ/9yfUKsIUtc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-Id: List-Archive:List-Help:List-Owner:List-Post:List-Subscribe: List-Unsubscribe:From; b=M4Ik3DedOWzAMzuyDonc+vENS/Dmw6v5hY4bNEAGpfG9uKUpMYG9hXVGSHMh6T73Y vNxfc3Cot+BVsIWTM50cy5X2twbRGCYfdk4k8q2yLmLkwfEA8hCma04mCcNa+FqF4E 4UNy+Zl3r1g+f9/zybndjKiUVUpLIHtDA2VgjDLo= Received: by alsa1.perex.cz (Postfix, from userid 50401) id C642FF80558; Fri, 9 Jun 2023 16:47:12 +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 20AC1F80558; Fri, 9 Jun 2023 16:47:12 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id E6537F80199; Wed, 7 Jun 2023 11:23:49 +0200 (CEST) Received: from mail.loongson.cn (mail.loongson.cn [114.242.206.163]) by alsa1.perex.cz (Postfix) with ESMTP id A9934F8016C for ; Wed, 7 Jun 2023 11:23:47 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz A9934F8016C Received: from loongson.cn (unknown [223.106.25.146]) by gateway (Coremail) with SMTP id _____8DxSuo6TIBkXRcAAA--.344S3; Wed, 07 Jun 2023 17:22:02 +0800 (CST) Received: from localhost.localdomain (unknown [223.106.25.146]) by localhost.localdomain (Coremail) with SMTP id AQAAf8BxNeQ2TIBkvzcEAA--.14996S6; Wed, 07 Jun 2023 17:22:01 +0800 (CST) From: Yanteng Si To: tiwai@suse.com Cc: Yanteng Si , perex@perex.cz, chenhuacai@loongson.cn, alsa-devel@alsa-project.org, loongarch@lists.linux.dev, loongson-kernel@lists.loongnix.cn, Yingkun Meng Subject: [PATCH RESEND v3 4/4] ALSA: hda/intel: Workaround for WALLCLK register for loongson controller Date: Wed, 7 Jun 2023 17:21:52 +0800 Message-Id: <185df71ef413ab190460eb377703214ee7288aeb.1686128807.git.siyanteng@loongson.cn> X-Mailer: git-send-email 2.31.4 In-Reply-To: References: MIME-Version: 1.0 X-CM-TRANSID: AQAAf8BxNeQ2TIBkvzcEAA--.14996S6 X-CM-SenderInfo: pvl1t0pwhqwqxorr0wxvrqhubq/ X-Coremail-Antispam: 1Uk129KBj9xXoWrZrW8ZF1fZw4rXrykAFW8uFX_yoWDArcEgw sFvryDX3s8GFsxKr1rZr1DXFW3taykAFyxW3Z7tr47JayfKFZ5X34kZrnxCFy7Zw4kXFs0 krnFqrWF9r1UKosvyTuYvTs0mTUanT9S1TB71UUUUjDqnTZGkaVYY2UrUUUUj1kv1TuYvT s0mT0YCTnIWjqI5I8CrVACY4xI64kE6c02F40Ex7xfYxn0WfASr-VFAUDa7-sFnT9fnUUI cSsGvfJTRUUUb3AYFVCjjxCrM7AC8VAFwI0_Jr0_Gr1l1xkIjI8I6I8E6xAIw20EY4v20x vaj40_Wr0E3s1l1IIY67AEw4v_JF0_JFyl8cAvFVAK0II2c7xJM28CjxkF64kEwVA0rcxS w2x7M28EF7xvwVC0I7IYx2IY67AKxVW5JVW7JwA2z4x0Y4vE2Ix0cI8IcVCY1x0267AKxV W8JVWxJwA2z4x0Y4vEx4A2jsIE14v26F4UJVW0owA2z4x0Y4vEx4A2jsIEc7CjxVAFwI0_ Cr1j6rxdM2kKe7AKxVWUAVWUtwAS0I0E0xvYzxvE52x082IY62kv0487Mc804VCY07AIYI kI8VC2zVCFFI0UMc02F40EFcxC0VAKzVAqx4xG6I80ewAv7VC0I7IYx2IY67AKxVWUtVWr XwAv7VC2z280aVAFwI0_Cr0_Gr1UMcvjeVCFs4IE7xkEbVWUJVW8JwACjcxG0xvY0x0EwI xGrwCY1x0262kKe7AKxVWUAVWUtwCF04k20xvY0x0EwIxGrwCFx2IqxVCFs4IE7xkEbVWU JVW8JwC20s026c02F40E14v26r1j6r18MI8I3I0E7480Y4vE14v26r106r1rMI8E67AF67 kF1VAFwI0_Jw0_GFylIxkGc2Ij64vIr41lIxAIcVC0I7IYx2IY67AKxVW5JVW7JwCI42IY 6xIIjxv20xvEc7CjxVAFwI0_Gr0_Cr1lIxAIcVCF04k26cxKx2IYs7xG6r1j6r1xMIIF0x vEx4A2jsIE14v26F4j6r4UJwCI42IY6I8E87Iv6xkF7I0E14v26r4j6r4UJbIYCTnIWIev Ja73UjIFyTuYvjxU7aZXUUUUU X-MailFrom: siyanteng@loongson.cn X-Mailman-Rule-Hits: nonmember-moderation 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 Message-ID-Hash: UG4CQCOL4NRNY2AUHSK5U2GT673S4R6P X-Message-ID-Hash: UG4CQCOL4NRNY2AUHSK5U2GT673S4R6P X-Mailman-Approved-At: Fri, 09 Jun 2023 14:46:45 +0000 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: On loongson controller, the value of WALLCLK register is always 0, which is meaningless, so we return directly. Signed-off-by: Yanteng Si Signed-off-by: Yingkun Meng --- sound/pci/hda/hda_intel.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index fc4787c7782a..ef831770ca7d 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -655,6 +655,13 @@ static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev) unsigned int pos; snd_pcm_uframes_t hwptr, target; + /* + * The value of the WALLCLK register is always 0 + * on the Loongson controller, so we return directly. + */ + if (chip->driver_type == AZX_DRIVER_LOONGSON) + return 1; + wallclk = azx_readl(chip, WALLCLK) - azx_dev->core.start_wallclk; if (wallclk < (azx_dev->core.period_wallclk * 2) / 3) return -1; /* bogus (too early) interrupt */