linux-kernel - Re: [PATCH] drm/rockchip: rgb: don't count non-existent devices when determining subdrivers

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Message-ID: <2624804.tm1DkxDElZ@phil>
Date:   Wed, 11 Mar 2020 10:00:45 +0100
From:   Heiko Stuebner <heiko@...ech.de>
To:     hjc@...k-chips.com
Cc:     dri-devel@...ts.freedesktop.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org,
        miquel.raynal@...tlin.com, christoph.muellner@...obroma-systems.com
Subject: Re: [PATCH] drm/rockchip: rgb: don't count non-existent devices when determining subdrivers

Am Dienstag, 21. Januar 2020, 23:48:28 CET schrieb Heiko Stuebner:
> From: Heiko Stuebner <heiko.stuebner@...obroma-systems.com>
> 
> rockchip_drm_endpoint_is_subdriver() may also return error codes.
> For example if the target-node is in the disabled state, so no
> platform-device is getting created for it.
> 
> In that case current code would count that as external rgb device,
> which in turn would make probing the rockchip-drm device fail.
> 
> So only count the target as rgb device if the function actually
> returns 0.
> 
> Signed-off-by: Heiko Stuebner <heiko.stuebner@...obroma-systems.com>

applied to drm-misc-next