linux-kernel - Re: [PATCH] clk: samsung: Fix Exynos 5420 pinctrl setup and clock disable failure due to domain being gated

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Date:	Fri, 02 Jan 2015 10:49:06 +0100
From:	Javier Martinez Canillas <javier.martinez@...labora.co.uk>
To:	Paolo Pisati <p.pisati@...il.com>,
	Kevin Hilman <khilman@...nel.org>
CC:	Sylwester Nawrocki <s.nawrocki@...sung.com>,
	Krzysztof Kozlowski <k.kozlowski@...sung.com>,
	Mike Turquette <mturquette@...aro.org>,
	Tomasz Figa <tomasz.figa@...il.com>,
	Stephen Boyd <sboyd@...eaurora.org>,
	Kukjin Kim <kgene@...nel.org>,
	linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	Kyungmin Park <kyungmin.park@...sung.com>,
	Marek Szyprowski <m.szyprowski@...sung.com>,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
Subject: Re: [PATCH] clk: samsung: Fix Exynos 5420 pinctrl setup and clock
 disable failure due to domain being gated

Hello Paolo,

On 12/24/2014 05:36 PM, Paolo Pisati wrote:
> On Wed, Dec 10, 2014 at 09:35:31AM -0800, Kevin Hilman wrote:
>> 
>> I confirm it fixes the boot hang in linux-next (next-20141210) on my
>> exynos5800-peach-pi and exynos5420-arndale-octa.  Tested both
>> exynos_defconfig and multi_v7_defconfig.
>> 
>> Tested-by: Kevin Hilman <khilman@...aro.org>
> 
> does audio work on your peach pi? because kernel boots fine, but i can't get any
> audio out of it
> 

Audio is not working for me as well. I said before that audio was working
because I tested with the headphone audio jack but I forgot that I had
re-introduced the clk_ignore_unused parameter to my kernel command line
to test the mmc/sdio wifi. Without clk_ignore_unused, I have no audio.

I see that the downstream daisy_max98095 ASoC driver in the ChromeOS tree
grabs some clocks that the mainline sound/soc/samsung/snow.c driver so it
it seems that at least that is missing and may explain why it is working
with clk_ignore_unused.

Best regards,
Javier
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