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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 0/3] Fix power domains handling on exynos542x
Date: Thu, 05 Feb 2015 15:45:08 +0100	[thread overview]
Message-ID: <54D381F4.2080701@collabora.co.uk> (raw)
In-Reply-To: <1423139739-19881-1-git-send-email-a.hajda@samsung.com>

Hello Andrzej,

Thanks a lot for finally finding what was causing the HDMI issue.

On 02/05/2015 01:35 PM, Andrzej Hajda wrote:
> Hi,
> 
> Exynos chipsets since 542x have asynchronous bridges connecting different IPs.
> These bridges should be operational during power domain switching, ie associated
> clocks cannot be gated.
> This patchset adds binding to provide such clocks per power domain and adds code
> which enables them during domain on/off operation.
> 
> This patchset fixes power domain issues with disp1 domain and HDMI (some of them)
> on Odroid XU3:
> - disp1 power domain can be turned off,
> - no more "imprecise external abort" faults.
> 
> The patchset is based on '[PATCH v5 0/9] Enable HDMI support on Exynos platforms' [1].
> 

It also depends on '[PATCH 0/2] Add HDMI support for Exynos5420 platform' [2].

> It was successfully tested on OdroidXU3.
> 
> [1]: http://permalink.gmane.org/gmane.linux.kernel.samsung-soc/42743

Your patches looks good to me so please feel free to add:

Reviewed-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>

I also tested on an Exynos5420 Peach Pit Chromebook and both the "Power
domain power-domain disable failed" message and the system crash are gone.

Tested-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>

Best regards,
Javier

[2]: https://lkml.org/lkml/2015/1/20/235

  parent reply	other threads:[~2015-02-05 14:45 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-02-05 12:35 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 ` Javier Martinez Canillas [this message]
2015-02-06  5:27   ` [RFC PATCH 0/3] Fix power domains handling on exynos542x 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
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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