linux-kernel - Re: [PATCH v3 1/2] drm/bridge: it6505: Adapt runtime power management framework

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Message-ID: <c92314a0-8843-fe50-aebe-7c94d278f115@collabora.com>
Date:   Tue, 4 Oct 2022 10:00:56 +0200
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     Pin-yen Lin <treapking@...omium.org>,
        Andrzej Hajda <andrzej.hajda@...el.com>,
        Neil Armstrong <narmstrong@...libre.com>,
        Robert Foss <robert.foss@...aro.org>,
        Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
        Jonas Karlman <jonas@...boo.se>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>
Cc:     Hsin-Yi Wang <hsinyi@...omium.org>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        Hermes Wu <hermes.wu@....com.tw>,
        Allen Chen <allen.chen@....com.tw>
Subject: Re: [PATCH v3 1/2] drm/bridge: it6505: Adapt runtime power management
 framework

Il 04/10/22 06:49, Pin-yen Lin ha scritto:
> Use pm_runtime_(get|put)_sync to control the bridge power, and add
> SET_SYSTEM_SLEEP_PM_OPS with pm_runtime_force_(suspend|resume) to it6505
> driver. Without SET_SYSTEM_SLEEP_PM_OPS, the bridge will be powered on
> unnecessarily when no external display is connected.
> 
> Fixes: b5c84a9edcd4 ("drm/bridge: add it6505 driver")
> Signed-off-by: Pin-yen Lin <treapking@...omium.org>
> 

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>