[Bug 104548] [BAT] igt at gem_exec_suspend@basic-s3 - dmesg-warn - Unclaimed write to register 0x66a00

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=104548

--- Comment #2 from Marta Löfstedt <marta.lofstedt at intel.com> ---
The backtrace comes from:

intel_hdcp.c =>
static int _intel_hdcp_disable(struct intel_connector *connector)
...
I915_WRITE(PORT_HDCP_CONF(port), 0);

The register is:
[  188.178792] Unclaimed write to register 0x66a00
intel_reg.h
#define _PORTE_HDCP_AUTHENC             0x66A00

intel_hdcp.c was added on CI_DRM_3608:

https://patchwork.freedesktop.org/series/34671/

The regression is visible in PW results.

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