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From: houlong wei <houlong.wei@mediatek.com>
To: Eizan Miyamoto <eizan@chromium.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Cc: "wenst@chromium.org" <wenst@chromium.org>,
	"Yong Wu (吴勇)" <Yong.Wu@mediatek.com>,
	"enric.balletbo@collabora.com" <enric.balletbo@collabora.com>,
	"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
	"chunkuang.hu@kernel.org" <chunkuang.hu@kernel.org>,
	"Andrew-CT Chen (陳智迪)" <Andrew-CT.Chen@mediatek.com>,
	"Matthias Brugger" <matthias.bgg@gmail.com>,
	"Mauro Carvalho Chehab" <mchehab@kernel.org>,
	"Minghsiu Tsai (蔡明修)" <Minghsiu.Tsai@mediatek.com>,
	"linux-arm-kernel@lists.infradead.org"
	<linux-arm-kernel@lists.infradead.org>,
	"linux-media@vger.kernel.org" <linux-media@vger.kernel.org>,
	"linux-mediatek@lists.infradead.org"
	<linux-mediatek@lists.infradead.org>,
	houlong.wei@mediatek.com
Subject: Re: [PATCH v6 5/9] mtk-mdp: make mdp driver to be loadable by platform_device_register*()
Date: Mon, 16 Aug 2021 09:15:07 +0800	[thread overview]
Message-ID: <4d2e4210c74f7fe14d933571df768dc58a1e9266.camel@mediatek.com> (raw)
In-Reply-To: <20210802220943.v6.5.Iedb6b4f47788548b0cf7bfffae85cac917344c2f@changeid>

On Mon, 2021-08-02 at 20:12 +0800, Eizan Miyamoto wrote:
> Rather than hanging the MDP master component driver off of the rdma0
> device, make it possible too create a "virtual" device by registering
> it with platform_device_register_*() to be probed by the mtk_mdp_core
> driver.
> 
> Broadly, three interdependent things are done by this change:
> - Make it is possible to search for MDP devices in the device tree
>   through the grandparent device's of_node.
> - v4l-related setup is moved into from the mtk_mdp_core driver to the
>   mtk_mdp_comp driver.
> - Presence of a mediatek,vpu property in an MDP component device node
>   is used to determine what device to use when dispatching DMA ops
> from
>   the relevant ioctl, and also do V4L2 initialization in this case.
> 
> Signed-off-by: Eizan Miyamoto <eizan@chromium.org>
> ---

Reviewed-by: Houlong Wei <houlong.wei@mediatek.com>

> Changes in v6:
> - Don't propagate errors from clock_on/off as an afterthought.
> - Split apart modifying mdp driver to be loadable from mmsys from
>   actually loading it from mmsys into two changs to make review
> easier.
> - Update devicetree bindings to reflect no longer needing the
>   mediatek,vpu property in the mdp_rdma0 device node.
> - Some stylistic cleanups.
> 
> Changes in v5:
> - rebase and test on 5.13-next @ e2f74b13dbe6
> 
> Changes in v4:
> - rebase and test on 5.13
> - don't depend on 
> https://patchwork.kernel.org/project/linux-mediatek/list/?series=464873
> 
> Changes in v3:
> - get mdp master from aliases instead of strcmp against of_node->name
> 
> Changes in v2:
> - rebased onto Linux 5.12
> - 100 char line length allowance was utilized in a few places
> - Removal of a redundant dev_err() print at the end of
>   mtk_mdp_comp_init()
> - Instead of printing errors and ignoring them, I've added a patch to
>   correctly propagate them.
> - Use of C style comments.
> - Three additional patches were added to eliminate dependency on the
>   mediatek,vpu property inside the mdp_rdma0 device node.

[...]

  parent reply	other threads:[~2021-08-16  1:15 UTC|newest]

Thread overview: 42+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-02 12:12 [PATCH v6 0/9] Refactor MTK MDP driver into core/components Eizan Miyamoto
2021-08-02 12:12 ` [PATCH v6 1/9] mtk-mdp: propagate errors from clock_on Eizan Miyamoto
2021-08-03 10:26   ` Enric Balletbo Serra
2021-08-05  6:06   ` Dafna Hirschfeld
2021-08-09  3:23     ` Eizan Miyamoto
2021-08-09  7:42       ` Dafna Hirschfeld
2021-08-16  0:46   ` houlong wei
2021-08-02 12:12 ` [PATCH v6 2/9] mtk-mdp: add driver to probe mdp components Eizan Miyamoto
2021-08-03 10:26   ` Enric Balletbo Serra
2021-08-05  6:40   ` Dafna Hirschfeld
2021-08-09  3:23     ` Eizan Miyamoto
2021-08-09  7:53       ` Dafna Hirschfeld
2021-08-11 11:15         ` Eizan Miyamoto
2021-08-16  1:05   ` houlong wei
2021-08-02 12:12 ` [PATCH v6 3/9] mtk-mdp: use pm_runtime in MDP component driver Eizan Miyamoto
2021-08-03 10:26   ` Enric Balletbo Serra
2021-08-16  1:07   ` houlong wei
2021-08-02 12:12 ` [PATCH v6 4/9] media: mtk-mdp: don't pm_run_time_get/put for master comp in clock_on Eizan Miyamoto
2021-08-03 10:27   ` Enric Balletbo Serra
2021-08-16  1:10   ` houlong wei
2021-08-02 12:12 ` [PATCH v6 5/9] mtk-mdp: make mdp driver to be loadable by platform_device_register*() Eizan Miyamoto
2021-08-03 10:27   ` Enric Balletbo Serra
2021-08-16  1:15   ` houlong wei [this message]
2021-08-16  3:37   ` houlong wei
2021-08-02 12:12 ` [PATCH v6 6/9] soc: mediatek: mmsys: instantiate mdp virtual device from mmsys Eizan Miyamoto
2021-08-03 10:27   ` Enric Balletbo Serra
2021-08-16  1:18   ` houlong wei
2021-08-02 12:12 ` [PATCH v6 7/9] media: mtk-mdp: use mdp-rdma0 alias to point to MDP master Eizan Miyamoto
2021-08-03 10:27   ` Enric Balletbo Serra
2021-08-03 11:46     ` Eizan Miyamoto
2021-08-16  3:00   ` houlong wei
2021-08-16  4:52     ` houlong wei
2021-08-18  7:50       ` Eizan Miyamoto
2021-08-18 15:42         ` houlong wei
2021-08-18  7:43     ` Eizan Miyamoto
2021-08-18 15:34       ` houlong wei
2021-08-02 12:12 ` [PATCH v6 8/9] dts: mtk-mdp: remove mediatek,vpu property from primary MDP device Eizan Miyamoto
2021-08-03 10:27   ` Enric Balletbo Serra
2021-08-02 12:12 ` [PATCH v6 9/9] dt-bindings: mediatek: remove vpu requirement from mtk-mdp Eizan Miyamoto
2021-08-03 10:27   ` Enric Balletbo Serra
2021-08-06 21:47   ` Rob Herring
2021-08-03 10:29 ` [PATCH v6 0/9] Refactor MTK MDP driver into core/components Enric Balletbo Serra

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