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From: Dan Murphy <dmurphy@ti.com>
To: <lgirdwood@gmail.com>, <broonie@kernel.org>, <perex@perex.cz>,
	<tiwai@suse.com>
Cc: <alsa-devel@alsa-project.org>, <linux-kernel@vger.kernel.org>
Subject: [RFC] Volume control across multiple registers
Date: Wed, 19 Feb 2020 15:11:47 -0600	[thread overview]
Message-ID: <2f74b971-4a6a-016f-8121-4da941eeccef@ti.com> (raw)
In-Reply-To: <20200219134622.22066-1-dmurphy@ti.com>

Hello!

I am trying to figure out how to control the volume of a speaker device 
with full volume control spread out across 4 8bit registers.

The standard TLV calls only allow a single register for volume control.  
But I have 4 I need to touch to get a full range of volume from 0dB to 
-110dB.

I was looking at using the DAPM calls and use PGA_E and define an event 
but there really is no good way to get the current volume setting.

I don't see any example of this in any current driver.

Any guidance is appreciated.

Dan


  parent reply	other threads:[~2020-02-19 21:18 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-19 13:46 [PATCH] ASoC: tas2562: Add support for ISENSE and VSENSE Dan Murphy
2020-02-19 20:57 ` Applied "ASoC: tas2562: Add support for ISENSE and VSENSE" to the asoc tree Mark Brown
2020-02-19 21:11 ` Dan Murphy [this message]
2020-02-20 11:59   ` [RFC] Volume control across multiple registers Mark Brown

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