Re: [PATCH 2/2] drm: bridge: ti-sn65dsi83: Add error recovery mechanism

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On 10/28/24 9:02 AM, Herve Codina wrote:
Hi Marek,

Hi,

On Sat, 26 Oct 2024 00:53:51 +0200
Marek Vasut <marex@xxxxxxx> wrote:

On 10/24/24 11:55 AM, Herve Codina wrote:
In some cases observed during ESD tests, the TI SN65DSI83 cannot recover
from errors by itself. A full restart of the bridge is needed in those
cases to have the bridge output LVDS signals again.

I have seen the bridge being flaky sometimes, do you have any more
details of what is going on when this irrecoverable error occurs ?

The panel attached to the bridge goes and stays black. That's the behavior.
A full reset brings the panel back displaying frames.
Is there some noticeable change in 0xe0/0xe1/0xe5 registers, esp. 0xe5, do they indicate the error occurred somehow ?




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