linux-kernel - Re: [PATCH 3/3] drm/rockchip: vop: Split rk3288-vop into big and lit

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Message-ID: <7dfc70fa-6076-4bd0-a9d1-2477a5a088e8@kernel.org>
Date: Mon, 23 Sep 2024 17:43:14 +0200
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Jonas Karlman <jonas@...boo.se>, Krzysztof Kozlowski <krzk+dt@...nel.org>
Cc: Rob Herring <robh@...nel.org>, Conor Dooley <conor+dt@...nel.org>,
 Sandy Huang <hjc@...k-chips.com>, Heiko Stuebner <heiko@...ech.de>,
 Andy Yan <andy.yan@...k-chips.com>,
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>,
 David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
 linux-rockchip@...ts.infradead.org, devicetree@...r.kernel.org,
 dri-devel@...ts.freedesktop.org, linux-arm-kernel@...ts.infradead.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/3] drm/rockchip: vop: Split rk3288-vop into big and lit

On 23/09/2024 11:01, Jonas Karlman wrote:
>>>  	0, 0,
>>> @@ -1245,8 +1253,13 @@ static const struct of_device_id vop_driver_dt_match[] = {
>>>  	  .data = &rk3066_vop },
>>>  	{ .compatible = "rockchip,rk3188-vop",
>>>  	  .data = &rk3188_vop },
>>> +	{ .compatible = "rockchip,rk3288-vop-big",
>>> +	  .data = &rk3288_vop_big },
>>
>> Hm... that's not really needed. Instead of having three compatibles, you
>> could keep "rk3288-vop" as big and then my comment on bindings patch
>> could be ignored (you keep the compatible).
> 
> Thanks, I guess that just adding a new compatible for vop-lit should be
> enough.
> 
> VOP_BIG: rockchip,rk3288-vop
> VOP_LIT: rockchip,rk3288-vop-lit, rockchip,rk3288-vop
> 
> That should ensure backward/forward compatibility with any mix of
> old/new boot-firmware, DTs and kernels.
> 
> Will change to use that in v2.

Yes, thanks.

Best regards,
Krzysztof