linux-kernel - [PATCH v5 00/10]drm/bridge: it6505: fix HDCP CTS fail items and add MCCS support

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Message-ID: <20241001064305.32180-1-Hermes.Wu@ite.com.tw>
Date: Tue, 1 Oct 2024 14:42:59 +0800
From: Hermes Wu <Hermes.Wu@....com.tw>
To: Pin-yen Lin <treapking@...omium.org>
CC: Kenneth Hung <Kenneth.hung@....com.tw>, Pet Weng <Pet.Weng@....com.tw>,
        Hermes Wu <Hermes.wu@....com.tw>, Allen Chen <allen.chen@....com.tw>,
        AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
        "open
 list:DRM DRIVERS" <dri-devel@...ts.freedesktop.org>,
        Hermes Wu
	<hermes.wu@....com.tw>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        Jonas
 Karlman <jonas@...boo.se>,
        Laurent Pinchart
	<Laurent.pinchart@...asonboard.com>,
        open list
	<linux-kernel@...r.kernel.org>,
        Robert Foss <rfoss@...nel.org>
Subject: [PATCH v5 00/10]drm/bridge: it6505: fix HDCP CTS fail items and add MCCS support

From: Hermes Wu <Hermes.wu@....com.tw>

This is a v5 patch-set.

There are lots of failure items while running HDCP CTS using UNIGRAF DPR-100.
In Order to fix those failures, HDCP flow needs to be changed.

The DisplayPort AUX protocol supports I2C transport.
In Order to support MCCS via the aux channel, the aux-i2c operation is added.

v4 ->v5:
	-add more messages for changes.
	-[2/10] modified AUX transfer data size judgment.
		change for-loop to do-while.
	-[7/10] change for-loop to do-while.
	-[9/10] change wait timer with timer_after()

	links:
	https://lore.kernel.org/all/20240926074755.22176-4-Hermes.Wu@ite.com.tw/
	https://lore.kernel.org/all/20240926075134.22394-1-Hermes.Wu@ite.com.tw/

v3 ->v4:
	-split changes  into patches.

v2- > v3:
	-split aux read  KSV function to a patch.
	-[1/3] new in v3
	-[2/3] add description of patch

v1 -> v2 :
	- ignored.

Hermes Wu (10):
  drm/bridge: it6505: Change definition of AUX_FIFO_MAX_SIZE
  drm/bridge: it6505: improve AUX operation for edid read
  drm/bridge: it6505: add AUX operation for HDCP KSV list read
  drm/bridge: it6505: Change definition MAX_HDCP_DOWN_STREAM_COUNT
  drm/bridge: it6505: fix HDCP Bstatus check
  drm/bridge: it6505: fix HDCP encryption when R0 ready
  drm/bridge: it6505: fix HDCP CTS KSV list read with UNIGRAF DPR-100.
  drm/bridge: it6505: fix HDCP CTS compare V matching
  drm/bridge: it6505: fix HDCP CTS KSV list wait timer
  drm/bridge: it6505: add I2C functionality on AUX

 drivers/gpu/drm/bridge/ite-it6505.c | 334 +++++++++++++++++++++++-----
 1 file changed, 277 insertions(+), 57 deletions(-)

-- 
2.34.1