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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>,
	"Matthias Brugger" <matthias.bgg@gmail.com>,
	"linux-arm-kernel@lists.infradead.org"
	<linux-arm-kernel@lists.infradead.org>,
	"linux-mediatek@lists.infradead.org"
	<linux-mediatek@lists.infradead.org>,
	houlong.wei@mediatek.com
Subject: Re: [PATCH v6 6/9] soc: mediatek: mmsys: instantiate mdp virtual device from mmsys
Date: Mon, 16 Aug 2021 09:18:16 +0800	[thread overview]
Message-ID: <cba6ccf59101225150d0b9f6020753adc22221ed.camel@mediatek.com> (raw)
In-Reply-To: <20210802220943.v6.6.Ie4214d2cc73ab276dd7c41d4f63c98e011fb42d4@changeid>

On Mon, 2021-08-02 at 20:12 +0800, Eizan Miyamoto wrote:
> A virtual device that is probed by the mtk_mdp_core driver is
> instantiated by the mtk_mmsys driver.
> 
> This better reflects the logical organization of the hardware and
> driver: there are a number of hardware blocks that are used by the
> MDP
> that have no strict hierarchy, and the software driver is responsible
> for driving them properly.
> 
> Signed-off-by: Eizan Miyamoto <eizan@chromium.org>
> ---

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

> (no changes since v1)
> 
>  drivers/soc/mediatek/mtk-mmsys.c | 20 +++++++++++++++++++-
>  1 file changed, 19 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/soc/mediatek/mtk-mmsys.c
> b/drivers/soc/mediatek/mtk-mmsys.c
> index 080660ef11bf..e681029fe804 100644
> --- a/drivers/soc/mediatek/mtk-mmsys.c
> +++ b/drivers/soc/mediatek/mtk-mmsys.c
> @@ -97,6 +97,7 @@ static int mtk_mmsys_probe(struct platform_device
> *pdev)
>  	struct platform_device *clks;
>  	struct platform_device *drm;
>  	struct mtk_mmsys *mmsys;
> +	struct platform_device *mdp;
>  	int ret;
>  
>  	mmsys = devm_kzalloc(dev, sizeof(*mmsys), GFP_KERNEL);
> @@ -122,10 +123,27 @@ static int mtk_mmsys_probe(struct
> platform_device *pdev)
>  					    PLATFORM_DEVID_AUTO, NULL,
> 0);
>  	if (IS_ERR(drm)) {
>  		platform_device_unregister(clks);
> -		return PTR_ERR(drm);
> +		ret = PTR_ERR(drm);
> +		goto err_drm;
> +	}
> +
> +	mdp = platform_device_register_data(&pdev->dev, "mtk-mdp",
> +					    PLATFORM_DEVID_AUTO, NULL,
> 0);
> +	if (IS_ERR(mdp)) {
> +		ret = PTR_ERR(mdp);
> +		dev_err(dev, "Failed to register mdp: %d\n", ret);
> +		goto err_mdp;
>  	}
>  
>  	return 0;
> +
> +err_mdp:
> +	platform_device_unregister(drm);
> +
> +err_drm:
> +	platform_device_unregister(clks);
> +
> +	return ret;
>  }
>  
>  static const struct of_device_id of_match_mtk_mmsys[] = {
> -- 
> 2.32.0.554.ge1b32706d8-goog
> 

  parent reply	other threads:[~2021-08-16  1:18 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
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 [this message]
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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