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From: Mark Brown <broonie@kernel.org>
To: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: alsa-devel@alsa-project.org, linux-samsung-soc@vger.kernel.org,
	Sylwester Nawrocki <s.nawrocki@samsung.com>,
	Sangbeom Kim <sbkim73@samsung.com>,
	Krzysztof Kozlowski <krzk@kernel.org>,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>,
	Inki Dae <inki.dae@samsung.com>,
	Javier Martinez Canillas <javier@osg.samsung.com>
Subject: Re: [PATCH 1/5] ASoC: samsung: i2s: Remove virtual device for secondary DAI
Date: Sat, 31 Dec 2016 18:31:07 +0000
Message-ID: <20161231183107.vvywtmaqegubpkyx@sirena.org.uk> (raw)
In-Reply-To: <1483011247-21613-2-git-send-email-m.szyprowski@samsung.com>


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On Thu, Dec 29, 2016 at 12:34:03PM +0100, Marek Szyprowski wrote:
> For some unknown (maybe historical?) reasons support for secondary I2S DAI
> was implemented by adding additional virtual platform device, which was
> then probed again with the main I2S driver. This pattern is really hard
> to follow and provides no benefits, so lets remove this hack and register
> both DAIs during linear probe of Exynos I2S controller driver.

It's historical, there used to be limitations that made it impossible to
register multiple devices to one DAI IIRC.

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  reply index

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CGME20161229113425eucas1p2f95b915a9a66df3e3ff8431b5625b926@eucas1p2.samsung.com>
2016-12-29 11:34 ` [PATCH 0/5] Runtime PM support for Exynos I2S driver Marek Szyprowski
     [not found]   ` <CGME20161229113425eucas1p2600ba7e4337e90f65c0bc60bb4a9c2ec@eucas1p2.samsung.com>
2016-12-29 11:34     ` [PATCH 1/5] ASoC: samsung: i2s: Remove virtual device for secondary DAI Marek Szyprowski
2016-12-31 18:31       ` Mark Brown [this message]
2016-12-31 19:19       ` Applied "ASoC: samsung: i2s: Remove virtual device for secondary DAI" to the asoc tree Mark Brown
     [not found]   ` <CGME20161229113426eucas1p2bc05fb68efd45e6af3ae7a2b8be5e481@eucas1p2.samsung.com>
2016-12-29 11:34     ` [PATCH 2/5] ASoC: samsung: i2s: Ensure proper runtime PM state of I2S device Marek Szyprowski
2016-12-31 19:19       ` Applied "ASoC: samsung: i2s: Ensure proper runtime PM state of I2S device" to the asoc tree Mark Brown
     [not found]   ` <CGME20161229113427eucas1p166db5239bd7b17ebaba8b248f06cffe8@eucas1p1.samsung.com>
2016-12-29 11:34     ` [PATCH 3/5] ASoC: samsung: i2s: Move saving and restoring regs to runtime pm operations Marek Szyprowski
2016-12-31 19:19       ` Applied "ASoC: samsung: i2s: Move saving and restoring regs to runtime pm operations" to the asoc tree Mark Brown
     [not found]   ` <CGME20161229113427eucas1p20e91adee0da640e2a5847d53f3c6e443@eucas1p2.samsung.com>
2016-12-29 11:34     ` [PATCH 4/5] ASoC: samsung: i2s: Let runtime PM operations to control op_clk too Marek Szyprowski
2016-12-31 19:19       ` Applied "ASoC: samsung: i2s: Let runtime PM operations to control op_clk too" to the asoc tree Mark Brown
     [not found]   ` <CGME20161229113427eucas1p21ee586b73029410d0860a22ce4a21e0c@eucas1p2.samsung.com>
2016-12-29 11:34     ` [PATCH 5/5] ASoC: samsung: i2s: Provide I2S device for registered clocks Marek Szyprowski
2016-12-31 19:19       ` Applied "ASoC: samsung: i2s: Provide I2S device for registered clocks" to the asoc tree Mark Brown

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