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From: "Alex G." <mr.nuke.me@gmail.com>
To: stable@vger.kernel.org
Subject: [PATCH] drm/bridge: sii902x: Enable I/O and core VCC supplies if present
Date: Fri, 15 Jan 2021 12:13:28 -0600	[thread overview]
Message-ID: <369af9ad-a84f-c0ff-5595-11b80ea56f46@gmail.com> (raw)

Please consider adding the following fixes to v5.10:

* cc5f7e2fcbe3 drm/bridge: sii902x: Enable I/O and core VCC supplies if 
present
* 4c1e054322da dt-bindings: display: sii902x: Add supply bindings
* 91b5e26731c5 drm/bridge: sii902x: Refactor init code into separate 
function

The STM32MP discovery board is a popular ARM platform, containing a GPU 
and attached display. The display will fail to be initialized if any of 
the DRM bridges fail initialization. The sii9022 bridge only worked 
correctly if the firmware enabled the power supplies on boot. This was 
the case if u-boot was used.

I would like this board to work correctly with v5.10, without needing to 
make assumptions about the firmware.

Thanks,
Alex


             reply	other threads:[~2021-01-15 18:15 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-15 18:13 Alex G. [this message]
2021-01-17 14:14 ` [PATCH] drm/bridge: sii902x: Enable I/O and core VCC supplies if present Greg KH

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