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From: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
To: Andrzej Hajda <a.hajda@samsung.com>, linux-samsung-soc@vger.kernel.org
Cc: Marek Szyprowski <m.szyprowski@samsung.com>,
	Kyungmin Park <kyungmin.park@samsung.com>,
	Kukjin Kim <kgene@kernel.org>,
	Liquid.Acid@gmx.net, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org
Subject: Re: [RFC PATCH v2 3/3] ARM: dts: exynos5420: add async-bridge clocks to disp1 power domain
Date: Fri, 06 Feb 2015 12:27:48 +0100	[thread overview]
Message-ID: <54D4A534.8060004@collabora.co.uk> (raw)
In-Reply-To: <1423220154-5333-1-git-send-email-a.hajda@samsung.com>

Hello Andrzej,

On 02/06/2015 11:55 AM, Andrzej Hajda wrote:
> FIMD and MIXER IPs in disp1 power domain have async-bridges (to GSCALER),
> therefore their clocks should be enabled during power domain switch.
> 
> Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
> ---
> Hi,
> 
> This is 2nd version of the patch. After decrypting manual and discussion
> with Marek I guess this set of clocks is more apropriate - async-bridges
> are present in MIXER and FIMD, so their clocks should be enabled.
>

I just tested this version on my Exynos5420 Peach Pit and the power domain
failed error does not happen anymore even after enabling and disabling the
HDMI display several times.

Thanks a lot for fixing this since the dependency was not clear to me from
reading the manual.

> The 1st version worked for me due to fact I have forgot to remove
> clk_ignore_unused kernel boot option during tests ;)
>

Yes, that has bitten me too many times as well :)

> Regards
> Andrzej
> ---

Best regards,
Javier

  reply	other threads:[~2015-02-06 11:27 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-02-05 12:35 [RFC PATCH 0/3] Fix power domains handling on exynos542x Andrzej Hajda
2015-02-05 12:35 ` [RFC PATCH 1/3] arm/exynos: add asynchronous bridge clock bindings Andrzej Hajda
2015-02-05 12:35 ` [RFC PATCH 2/3] arm/exynos/pm_domains: add support for async-bridge clocks Andrzej Hajda
2015-03-12 13:05   ` Sylwester Nawrocki
2015-02-05 12:35 ` [RFC PATCH 3/3] ARM: dts: exynos5420: add async-bridge clock to disp1 power domain Andrzej Hajda
2015-02-05 14:45 ` [RFC PATCH 0/3] Fix power domains handling on exynos542x Javier Martinez Canillas
2015-02-06  5:27   ` Joonyoung Shim
2015-02-06  9:18     ` Javier Martinez Canillas
2015-02-06 10:55       ` [RFC PATCH v2 3/3] ARM: dts: exynos5420: add async-bridge clocks to disp1 power domain Andrzej Hajda
2015-02-06 11:27         ` Javier Martinez Canillas [this message]
2015-03-03  8:12           ` Javier Martinez Canillas
2015-03-12 13:00         ` Sylwester Nawrocki
2015-03-10  9:48   ` [RFC PATCH 0/3] Fix power domains handling on exynos542x Javier Martinez Canillas

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