linux-kernel - Re: [PATCH v4 0/2] Add mode_valid and atomic

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Message-ID: <ba038d60-e399-476d-a4f3-50fc9d8eb390@linux.dev>
Date: Fri, 31 May 2024 20:55:15 +0800
From: Sui Jingfeng <sui.jingfeng@...ux.dev>
To: Jayesh Choudhary <j-choudhary@...com>, linux-kernel@...r.kernel.org,
 dmitry.baryshkov@...aro.org, andrzej.hajda@...el.com,
 neil.armstrong@...aro.org, rfoss@...nel.org,
 Laurent.pinchart@...asonboard.com, mripard@...nel.org, sam@...nborg.org
Cc: jonas@...boo.se, jernej.skrabec@...il.com,
 maarten.lankhorst@...ux.intel.com, tzimmermann@...e.de, airlied@...il.com,
 daniel@...ll.ch, a-bhatia1@...com, dri-devel@...ts.freedesktop.org
Subject: Re: [PATCH v4 0/2] Add mode_valid and atomic_check hooks for sii902x
 bridge

Hi,

On 5/30/24 17:29, Jayesh Choudhary wrote:
> Move the mode_valid hook to drm_bridge_funcs structure to take care
> of the case when the encoder attaches the bridge chain with the
> DRM_BRIDGE_ATTACH_NO_CONNECTOR flag in which case, the connector is not
> initialized in the bridge's attach call and mode_valid is not called.

Good catch, as modes being supported is actually a capability of the
bridge itself. The move make the driver reflect the hardware more.