Messages in this thread | | | Date | Tue, 30 Nov 2021 11:00:49 +0530 | From | Vinod Koul <> | Subject | Re: [PATCH] lontium-lt9611: check a different register bit for HDMI sensing |
| |
On 16-11-21, 18:07, Peter Collingbourne wrote: > It has been observed that with certain monitors such as the HP Z27n, > the register 0x825e reads a value of 0x79 when the HDMI cable is > connected and 0x78 when it is disconnected, i.e. bit 0 appears > to correspond to the HDMI connection status and bit 2 is never > set. Therefore, change the driver to check bit 0 instead of bit 2.
So we have got limited information on this but BIT-2 seems to be related to HPD and empirical data from various monitors supports this, so this seems the right thing to do.
Reviewed-by: Vinod Koul <vkoul@kernel.org>
-- ~Vinod
| |