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Wed, 03 Jul 2024 04:55:21 -0500 (CDT) Received: from ediex01.ad.cirrus.com (198.61.84.80) 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 15.2.1544.9; Wed, 3 Jul 2024 10:55:18 +0100 Received: from ediswmail9.ad.cirrus.com (198.61.86.93) by anon-ediex01.ad.cirrus.com (198.61.84.80) with Microsoft SMTP Server id 15.2.1544.9 via Frontend Transport; Wed, 3 Jul 2024 10:55:18 +0100 Received: from ediswws06.ad.cirrus.com (ediswws06.ad.cirrus.com [198.90.208.18]) by ediswmail9.ad.cirrus.com (Postfix) with ESMTP id 0F55E820257; Wed, 3 Jul 2024 09:55:18 +0000 (UTC) From: Richard Fitzgerald To: CC: , , , Subject: [PATCH 2/2] ASoC: cs35l56: Limit Speaker Volume to +12dB maximum Date: Wed, 3 Jul 2024 10:55:17 +0100 Message-ID: <20240703095517.208077-3-rf@opensource.cirrus.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240703095517.208077-1-rf@opensource.cirrus.com> References: <20240703095517.208077-1-rf@opensource.cirrus.com> MIME-Version: 1.0 X-Proofpoint-GUID: w2kT3kpPaJmcpFSN0gZf-kdSIybRhFLH X-Proofpoint-ORIG-GUID: w2kT3kpPaJmcpFSN0gZf-kdSIybRhFLH X-Proofpoint-Spam-Reason: safe Message-ID-Hash: PWPOIJFAKD27B45VWGFYQXVV536YF6HO X-Message-ID-Hash: PWPOIJFAKD27B45VWGFYQXVV536YF6HO X-MailFrom: prvs=4914b47104=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: 3.3.9 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: Change CS35L56_MAIN_RENDER_USER_VOLUME_MAX to 48, to limit the maximum value of the Speaker Volume control to +12dB. The minimum value is unchanged so that the default 0dB has the same integer control value. The original maximum of 400 (+100dB) was the largest value that can be mathematically handled by the DSP. The actual maximum amplification is +12dB. Signed-off-by: Richard Fitzgerald --- include/sound/cs35l56.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/sound/cs35l56.h b/include/sound/cs35l56.h index 642ef690ebc2..a6aa112e5741 100644 --- a/include/sound/cs35l56.h +++ b/include/sound/cs35l56.h @@ -207,7 +207,7 @@ /* CS35L56_MAIN_RENDER_USER_VOLUME */ #define CS35L56_MAIN_RENDER_USER_VOLUME_MIN -400 -#define CS35L56_MAIN_RENDER_USER_VOLUME_MAX 400 +#define CS35L56_MAIN_RENDER_USER_VOLUME_MAX 48 #define CS35L56_MAIN_RENDER_USER_VOLUME_MASK 0x0000FFC0 #define CS35L56_MAIN_RENDER_USER_VOLUME_SHIFT 6 #define CS35L56_MAIN_RENDER_USER_VOLUME_SIGNBIT 9