linux-kernel - Re: [PATCH v5 02/17] drm: bridge: analogix/dp: split exynos dp driver to bridge directory

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Message-id: <560B7068.2000008@samsung.com>
Date:	Wed, 30 Sep 2015 14:17:28 +0900
From:	Krzysztof Kozlowski <k.kozlowski@...sung.com>
To:	Yakir Yang <ykk@...k-chips.com>, Inki Dae <inki.dae@...sung.com>,
	Andrzej Hajda <a.hajda@...sung.com>,
	Joonyoung Shim <jy0922.shim@...sung.com>,
	Seung-Woo Kim <sw0312.kim@...sung.com>,
	Kyungmin Park <kyungmin.park@...sung.com>,
	Jingoo Han <jingoohan1@...il.com>,
	Heiko Stuebner <heiko@...ech.de>,
	Mark Yao <mark.yao@...k-chips.com>,
	Thierry Reding <treding@...dia.com>, joe@...ches.com,
	Rob Herring <robh+dt@...nel.org>
Cc:	David Airlie <airlied@...ux.ie>,
	Russell King <linux@....linux.org.uk>, djkurtz@...omium.org,
	dianders@...omium.org, Sean Paul <seanpaul@...omium.org>,
	Kukjin Kim <kgene@...nel.org>,
	Kumar Gala <galak@...eaurora.org>, emil.l.velikov@...il.com,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Gustavo Padovan <gustavo.padovan@...labora.co.uk>,
	Kishon Vijay Abraham I <kishon@...com>,
	Pawel Moll <pawel.moll@....com>, ajaynumb@...il.com,
	robherring2@...il.com, Andy Yan <andy.yan@...k-chips.com>,
	dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
	linux-rockchip@...ts.infradead.org,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v5 02/17] drm: bridge: analogix/dp: split exynos dp driver
 to bridge directory

On 22.09.2015 16:29, Yakir Yang wrote:
> Split the dp core driver from exynos directory to bridge directory,
> and rename the core driver to analogix_dp_*, rename the platform
> code to exynos_dp.
> 
> Beside the new analogix_dp driver would export four hooks.
> "analogix_dp_bind()" and "analogix_dp_unbind()"
> "analogix_dp_detect()" and "analogix_dp_get_modes()"
> 
> The bind/unbind symbols is used for analogix platform driver to connect
> with analogix_dp core driver. And the detect/get_modes is used for analogix
> platform driver to init the connector.
> 
> They reason why connector need register in helper driver is rockchip drm
> haven't implement the atomic API, but Exynos drm have implement it, so
> there would need two different connector helper functions, that's why we
> leave the connector register in helper driver.
> 
> Signed-off-by: Yakir Yang <ykk@...k-chips.com>
> ---
> Changes in v5:
> - Correct the check condition of gpio_is_valid when driver try to get
>   the "hpd-gpios" DT propery. (Heiko)
> - Move the platform attach callback in the front of core driver bridge
>   attch function. Cause once platform failed at attach, core driver should
>   still failed, so no need to init connector before platform attached (Krzysztof)
> - Keep code style no changes with the previous exynos_dp_code.c in this
>   patch, and update commit message about the new export symbol (Krzysztof)
> - Gather the device type patch (v4 11/16) into this one. (Krzysztof)
> - leave out the connector registration to analogix platform driver. (Thierry)

Thanks for fixing this, looks much better.

I don't feel comfortable enough to provide a review tag but it looks
good to me.

Best regards,
Krzysztof

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