[Intel-gfx] [PATCH 0/2] HDMI detect optimization and support for HDMI compliance
shashank.sharma at intel.com
shashank.sharma at intel.com
Tue Aug 12 14:38:19 CEST 2014
From: Shashank Sharma <shashank.sharma at intel.com>
This patch set adds 2 patches:
1. drm/i915: Optimize HDMI EDID reads
This patch adds a EDID caching solution in intel_hdmi_detect function
to avoid multiple EDID reads for single HPD. A delayed work function
makes sure that the cached EDID gets clear after a time out.
2. drm/i915: Support for HDMI complaince HPD
This patch adds support for HDMI analyzers. Most of the analyzers send a
soft HPD event, where the HDMI cable removal is not required. In such
scenarios, DDC is always up so EDID is always available, for both HPD
up and down. So we have to rely on live status register to check the
actual HPD status.
Shashank Sharma (2):
drm/i915: Optimize HDMI EDID reads
drm/i915: Support for HDMI complaince HPD
drivers/gpu/drm/i915/i915_drv.h | 1 +
drivers/gpu/drm/i915/i915_params.c | 6 ++
drivers/gpu/drm/i915/intel_drv.h | 5 +
drivers/gpu/drm/i915/intel_hdmi.c | 181 +++++++++++++++++++++++++++++++++++--
4 files changed, 186 insertions(+), 7 deletions(-)
--
1.9.1
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