From patchwork Mon Sep 26 23:25:29 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Takashi Sakamoto X-Patchwork-Id: 9351417 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 9C80B6086A for ; Tue, 27 Sep 2016 01:40:41 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8A7EF2894B for ; Tue, 27 Sep 2016 01:40:41 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 78E8428957; Tue, 27 Sep 2016 01:40:41 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.9 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_NONE autolearn=ham version=3.3.1 Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 80B592894B for ; Tue, 27 Sep 2016 01:40:40 +0000 (UTC) Received: by alsa0.perex.cz (Postfix, from userid 1000) id AA886266ECC; Tue, 27 Sep 2016 03:40:38 +0200 (CEST) Received: from alsa0.perex.cz (localhost [127.0.0.1]) by alsa0.perex.cz (Postfix) with ESMTP id 416CB266E43; Tue, 27 Sep 2016 03:38:13 +0200 (CEST) X-Original-To: alsa-devel@alsa-project.org Delivered-To: alsa-devel@alsa-project.org Received: by alsa0.perex.cz (Postfix, from userid 1000) id 339B9266E64; Tue, 27 Sep 2016 01:25:41 +0200 (CEST) Received: from smtp-proxy003.phy.lolipop.jp (smtp-proxy003.phy.lolipop.jp [157.7.104.44]) by alsa0.perex.cz (Postfix) with ESMTP id 65629266990 for ; Tue, 27 Sep 2016 01:25:34 +0200 (CEST) Received: from smtp-proxy003.phy.lolipop.lan (HELO smtp-proxy003.phy.lolipop.jp) (172.19.44.44) (smtp-auth username m12129643-o-takashi, mechanism plain) by smtp-proxy003.phy.lolipop.jp (qpsmtpd/0.82) with ESMTPA; Tue, 27 Sep 2016 08:25:32 +0900 Received: from 127.0.0.1 (127.0.0.1) by smtp-proxy003.phy.lolipop.jp (LOLIPOP-Fsecure); Tue, 27 Sep 2016 08:25:29 +0900 (JST) X-Virus-Status: clean(LOLIPOP-Fsecure) From: Takashi Sakamoto To: tiwai@suse.de, broonie@kernel.org, lgirdwood@gmail.com Date: Tue, 27 Sep 2016 08:25:29 +0900 Message-Id: <1474932329-10640-4-git-send-email-o-takashi@sakamocchi.jp> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1474932329-10640-1-git-send-email-o-takashi@sakamocchi.jp> References: <1474932329-10640-1-git-send-email-o-takashi@sakamocchi.jp> Cc: alsa-devel@alsa-project.org Subject: [alsa-devel] [PATCH 3/3] ASOC: stac9766: fix wrong usage of DECLARE_TLV_DB_LINEAR() X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.14 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: , MIME-Version: 1.0 Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org X-Virus-Scanned: ClamAV using ClamSMTP As long as reading datasheet of STAC9766/9767, this driver includes wrong usage of DECLARE_TLV_DB_LINEAR(). In "8.1.2. Master Volume Registers", attenuation of lineout volumes is represented in 5 bits by -1.5 dB/step from 0 to -46.5 dB. Thus, 'master_tlv' should be dB step representation. In "8.1.14. Record Gain", gain of volumes is represented in 4 bits by 1.5 dB/step from 0 to 22.5 dB. Thus, 'record_tlv' should be dB step representation. In "8.1.5. PC BEEP Volume", attenuation of volume is represented in 4 bits by -3 dB/step from 0 to 45 dB. Thus, 'beep_tlv' should be dB step representation. In "8.1.7. Stereo or Mic Volume" and so on, gain of volumes is represented in 5 bits by -1.5 dB from 12 to -34.5 dB. Thus, 'mix_tlv' should be dB step representation. Totally, current implementation includes misuse of TLV-related macro. This commit replaces usage of DECLARE_TLV_DB_LINEAR() with SNDRV_CTL_TLVD_DECLARE_DB_SCALE(), to give proper information to applications in user land. Fixes: 3c166c7f1828 ("ASoC: Codec for STAC9766 used on the Efika") Cc: Jon Smirl Signed-off-by: Takashi Sakamoto --- sound/soc/codecs/stac9766.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/sound/soc/codecs/stac9766.c b/sound/soc/codecs/stac9766.c index 0945c51..a718c653 100644 --- a/sound/soc/codecs/stac9766.c +++ b/sound/soc/codecs/stac9766.c @@ -85,10 +85,10 @@ static SOC_ENUM_SINGLE_DECL(stac9766_boost2_enum, static SOC_ENUM_SINGLE_DECL(stac9766_stereo_mic_enum, AC97_STAC_STEREO_MIC, 2, stac9766_stereo_mic); -static const DECLARE_TLV_DB_LINEAR(master_tlv, -4600, 0); -static const DECLARE_TLV_DB_LINEAR(record_tlv, 0, 2250); -static const DECLARE_TLV_DB_LINEAR(beep_tlv, -4500, 0); -static const DECLARE_TLV_DB_LINEAR(mix_tlv, -3450, 1200); +static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(master_tlv, -4650, 150, 0); +static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(record_tlv, 0, 150, 0); +static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(beep_tlv, -4500, 300, 0); +static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(mix_tlv, -3450, 150, 0); static const struct snd_kcontrol_new stac9766_snd_ac97_controls[] = { SOC_DOUBLE_TLV("Speaker Volume", AC97_MASTER, 8, 0, 31, 1, master_tlv),