Re: [Intel-gfx] [PATCH 2/3] drm/i915: Do not touch PCH handshake registers if PCH is not present

2018-11-21 Thread Ville Syrjälä
On Tue, Nov 20, 2018 at 02:32:41PM -0800, José Roberto de Souza wrote: > If no PCH was detected in intel_detect_pch() don't touch the > handshake registers. We are explicitly told to frob this on BXT/GLK. So this doesn't make sense. What is this supposed to fix? > > Cc: Lucas De Marchi > Cc:

[Intel-gfx] [PATCH 2/3] drm/i915: Do not touch PCH handshake registers if PCH is not present

2018-11-20 Thread José Roberto de Souza
If no PCH was detected in intel_detect_pch() don't touch the handshake registers. Cc: Lucas De Marchi Cc: Jani Nikula Signed-off-by: José Roberto de Souza --- drivers/gpu/drm/i915/intel_runtime_pm.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c