From: s.nawrocki@samsung.com (Sylwester Nawrocki)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 3/8] ASoC: uda134x: Optionally initialize L3 ops to default GPIO ops
Date: Fri, 05 Aug 2016 10:48:19 +0200 [thread overview]
Message-ID: <e2dbe62b-8767-d0a5-a133-e927cfce98d4@samsung.com> (raw)
In-Reply-To: <20160804210323.GK10383@sirena.org.uk>
On 08/04/2016 11:03 PM, Mark Brown wrote:
> Does L3 actually support multiple devices?
>From the bus operation description in a few datasheets of the Philips'
UDA13XX codecs I have checked I would say it's possible to have multiple
devices working on same bus. The slave devices are selectable by 6
most significant bits of the address byte and the device addresses
seem to be unique at first sight.
"In the event that the UDA1341TS receives a different address, it will
deselect its microcontroller interface logic." (ch. 7.19 [1])
However I can't answer yes for sure, I've never seen multiple device
operation mentioned explicitly in the datasheets nor such an hardware
configuration.
[1] http://www.nxp.com/documents/data_sheet/UDA1341TS.pdf
next prev parent reply other threads:[~2016-08-05 8:48 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-04 13:38 [PATCH 0/8] ASoC: s3c24xx_uda134x card fixes and cleanups Sylwester Nawrocki
2016-08-04 13:38 ` [PATCH 1/8] ASoC: L3 bus: Add default gpio ops Sylwester Nawrocki
2016-08-04 13:38 ` [PATCH 2/8] ARM: S3C24XX: Specify audio codec platform_data for mini2440 board Sylwester Nawrocki
2016-08-04 13:38 ` [PATCH 3/8] ASoC: uda134x: Optionally initialize L3 ops to default GPIO ops Sylwester Nawrocki
2016-08-04 21:03 ` Mark Brown
2016-08-05 8:48 ` Sylwester Nawrocki [this message]
2016-08-04 13:38 ` [PATCH 4/8] ASoC: s3c24xx_uda134x: Remove unused power() callback Sylwester Nawrocki
2016-08-04 13:38 ` [PATCH 5/8] ASoC: s3c24xx_uda134x: Drop initialization of codec's platform data Sylwester Nawrocki
2016-08-04 13:38 ` [PATCH 6/8] ASoC: samsung: Convert s3c24xx_uda134x to use devm_snd_soc_register_card() Sylwester Nawrocki
2016-08-04 13:38 ` [PATCH 7/8] ASoC: samsung: s3c24xx_uda134x: debug/error trace cleanup Sylwester Nawrocki
2016-08-04 21:05 ` Mark Brown
2016-08-05 9:52 ` Sylwester Nawrocki
2016-08-04 13:38 ` [PATCH 8/8] ASoC: s3c244_uda134x: Allocate private data dynamically Sylwester Nawrocki
2016-10-25 19:24 ` Applied "ASoC: s3c24xx_uda134x: Move global variables to driver's data structure" to the asoc tree Mark Brown
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