Re: [PATCH 2/2] dt-bindings: display: Add "disable-hpd" binding
From: Neil Armstrong <hidden>
Date: 2021-02-08 09:38:19
Also in:
dri-devel, linux-renesas-soc, lkml
Hi, On 31/01/2021 10:57, Mykyta Poturai wrote:
Add the "disable-hpd" binding, used to disable hotplug detected functionality in the driver. When it's enabled the driver assumes that the connector is always connected and disables the hotplug detect related IRQ.
DT describes the hardware, not the software behaviour. So if the HPD is broken, then add a "snps,broken-hpd" instead, or if you want to force output, use the DRM mode forcing, which is handled by the dw-hdmi code: https://wiki.archlinux.org/index.php/kernel_mode_setting#Forcing_modes Neil
quoted hunk
Signed-off-by: Mykyta Poturai <redacted> --- .../devicetree/bindings/display/bridge/renesas,dw-hdmi.txt | 1 + 1 file changed, 1 insertion(+)diff --git a/Documentation/devicetree/bindings/display/bridge/renesas,dw-hdmi.txt b/Documentation/devicetree/bindings/display/bridge/renesas,dw-hdmi.txt index 3f6072651182..b2b899f46b86 100644 --- a/Documentation/devicetree/bindings/display/bridge/renesas,dw-hdmi.txt +++ b/Documentation/devicetree/bindings/display/bridge/renesas,dw-hdmi.txt@@ -39,6 +39,7 @@ Optional properties: - power-domains: Shall reference the power domain that contains the DWC HDMI, if any. +- disable-hpd: Disables the hotplug detect feature Example: