Regards
Shashank
On 3/23/2016 2:33 PM, Daniel Vetter wrote:
On Tue, Mar 22, 2016 at 10:17:36PM +0530, Sharma, Shashank wrote:
Thanks Ville.
I will have a look at the series you posted, and if that's the case, will
try to merge this implementation on top of yours.
Please try to review Ville's patches either way using the DP specs, so
that we can pull it in. You have to read it carefully anyway to figure out
whether it matches lspcon well enough, so might as well use that time ;-)
Thanks, Daniel
Got it :)
Regards
Shashank
On 3/22/2016 9:50 PM, Ville Syrjälä wrote:
On Tue, Mar 22, 2016 at 07:55:01PM +0530, Shashank Sharma wrote:
LSPCON is essentially an active DP-HDMI convertor. It has
two modes of operations:
- ls mode (for upto HDMI 1.4 outputs, 4k@30 resoution / 297MHz)
- pcon mode (for upto HDMI 2.0 outputs, 4k@60 resolution / 600 MHz)
This patch set adds support for LS mode of operation for GEN9
platforms. It adds a new connector for lspcon, whcih is a mix
and match of DP and HDMI connectors, matching dual personality
of lspcon devices.
Notes:
- Daniel Vetter gave a review comment on LSPCON design, to make
it a separate encoder. This patch set tries to match that expectations
with a separate connector, as DDI encoder already fulfills all the
requirements of a lspcon_encoder.
- This patch set tagrets LS mode of operations only.
- PCON mode of operation will be added later, based on the requirements.
This is to primarily unbloc Linux devices with LSPCON port.
- This patch set is tested with BXT RVP + drm-nightly
- As we redesigned this code, to meet the review comments, this is a working
patch set, but not upto commercial quality yet.
Quick glance tells me this is more or less just an in driver implementation
of the DP dual mode standard at this point. I recently posted some patches [1]
that implement dual mode support as a helper. So you should check it out
and try to layer whatever lspcon specifics on top of that.
The only thing missing from my patches was basically using i2c-over-aux
instead of gmbus for type2 adapters, but that's mostly just a matter of
passing the right i2c adapter to places.
[1] https://lists.freedesktop.org/archives/dri-devel/2016-February/101494.html
Shashank Sharma (7):
drm/i915: add lspcon vbt bit parsing
drm/i915: Add lspcon data structures
drm/i915: Add new lspcon file
drm/i915: Add and initialize lspcon connector
drm/i915: Add and register lspcon connector functions
drm/i915: Add lspcon core functions
drm/i915: Add lspcon hpd handler
drivers/gpu/drm/i915/Makefile | 3 +-
drivers/gpu/drm/i915/i915_drv.h | 1 +
drivers/gpu/drm/i915/intel_bios.c | 42 +++
drivers/gpu/drm/i915/intel_ddi.c | 6 +
drivers/gpu/drm/i915/intel_dp.c | 31 ++
drivers/gpu/drm/i915/intel_drv.h | 35 +-
drivers/gpu/drm/i915/intel_hdmi.c | 25 +-
drivers/gpu/drm/i915/intel_hotplug.c | 2 +-
drivers/gpu/drm/i915/intel_lspcon.c | 620 ++++++++++++++++++++++++++++++++++
drivers/gpu/drm/i915/intel_vbt_defs.h | 1 +
10 files changed, 759 insertions(+), 7 deletions(-)
create mode 100644 drivers/gpu/drm/i915/intel_lspcon.c
--
1.9.1
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