linux-kernel - Re: [PATCH v4 0/16] Add Analogix Core Display Port Driver

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Date:	Wed, 02 Sep 2015 10:15:41 +0800
From:	Yakir Yang <ykk@...k-chips.com>
To:	Heiko Stuebner <heiko@...ech.de>
CC:	Thierry Reding <treding@...dia.com>,
	Jingoo Han <jingoohan1@...il.com>,
	Inki Dae <inki.dae@...sung.com>, joe@...ches.com,
	Kukjin Kim <kgene@...nel.org>,
	Krzysztof Kozlowski <k.kozlowski@...sung.com>,
	Mark Yao <mark.yao@...k-chips.com>,
	Russell King <rmk+kernel@....linux.org.uk>,
	djkurtz@...omium.com, dianders@...omium.com, seanpaul@...omium.com,
	ajaynumb@...il.com, Andrzej Hajda <a.hajda@...sung.com>,
	Kyungmin Park <kyungmin.park@...sung.com>,
	David Airlie <airlied@...ux.ie>,
	Gustavo Padovan <gustavo.padovan@...labora.co.uk>,
	Andy Yan <andy.yan@...k-chips.com>,
	Kumar Gala <galak@...eaurora.org>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Kishon Vijay Abraham I <kishon@...com>,
	architt@...eaurora.org, robherring2@...il.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@...t.NULL.NULL, s.infradead.org@...L.NULL
Subject: Re: [PATCH v4 0/16] Add Analogix Core Display Port Driver

Hi Heiko,

在 09/02/2015 05:47 AM, Heiko Stuebner 写道:
> Hi Yakir,
>
> Am Dienstag, 1. September 2015, 13:46:11 schrieb Yakir Yang:
>>     The Samsung Exynos eDP controller and Rockchip RK3288 eDP controller
>> share the same IP, so a lot of parts can be re-used. I split the common
>> code into bridge directory, then rk3288 and exynos only need to keep
>> some platform code. Cause I can't find the exact IP name of exynos dp
>> controller, so I decide to name dp core driver with "analogix" which I
>> find in rk3288 eDP TRM ;)
>>
>> Beyond that, there are three light registers setting differents bewteen
>> exynos and rk3288.
>> 1. RK3288 have five special pll resigters which not indicata in exynos
>>     dp controller.
>> 2. The address of DP_PHY_PD(dp phy power manager register) are different
>>     between rk3288 and exynos.
>> 3. Rk3288 and exynos have different setting with AUX_HW_RETRY_CTL(dp debug
>>     register).
>>
>> I have verified this series on two kinds of rockchip platform board, one
>> is rk3288 sdk board which connect with a 2K display port monitor, the other
>> is google jerry chromebook which connect with a eDP screen "cnm,n116bgeea2",
>> both of them works rightlly.
> it looks like during the rebase something did go wrong and I found some issues
> I mentioned in the replies to individual patches.
>
> I did prepare a branch based on mainline [0] with both the old and the new edp
> driver - rk3288_veyron_defconfig build both drivers into the image.
>
> While the old driver still works, I wasn't able to make the new one work yet
> ... the drm core does find the connector, but not that anything is connected
> to it. I'll try to dig deeper tomorrow, but maybe you'll see anything
> interesting before then.

Many thanks for your comment and debug, I would rebase on your
"edp-with-veyron" branch and fix the broken, make sure v6 would
work rightly at least in your side and my side.

- Yakir

>
> Heiko
>
> [0] https://github.com/mmind/linux-rockchip/tree/tmp/edp-with-veyron
>
>
>
>


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