Re: [PATCH v4 5/6] dt-bindings: drm/bridge: ti-sn65dsi86: Document no-hpd

2020-05-05 Thread Laurent Pinchart
Hi Doug, Thank you for the patch. On Thu, Apr 30, 2020 at 12:46:16PM -0700, Douglas Anderson wrote: > The ti-sn65dsi86 MIPI DSI to eDP bridge chip has a dedicated hardware > HPD (Hot Plug Detect) pin on it, but it's mostly useless for eDP > because of excessive debouncing in hardware. Specifical

[PATCH v4 5/6] dt-bindings: drm/bridge: ti-sn65dsi86: Document no-hpd

2020-04-30 Thread Douglas Anderson
The ti-sn65dsi86 MIPI DSI to eDP bridge chip has a dedicated hardware HPD (Hot Plug Detect) pin on it, but it's mostly useless for eDP because of excessive debouncing in hardware. Specifically there is no way to disable the debouncing and for eDP debouncing hurts you because HPD is just used for k