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[v7,00/10] drm/bridge: it6505: fix HDCP CTS fail items and add MCCS support

Message ID 20241104-v7-upstream-v7-0-8b71fd0f1d2d@ite.com.tw (mailing list archive)
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Series drm/bridge: it6505: fix HDCP CTS fail items and add MCCS support | expand

Message

Hermes Wu via B4 Relay Nov. 4, 2024, 6:43 a.m. UTC 
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.

v6->v7
	-[3/10] add header <linux/bitfield.h> included

	links:
	https://lore.kernel.org/all/20241016-upstream-v6-v6-0-4d93a0c46de1@ite.com.tw/

v5->v6:
	-keep the commit message wrapped at 72-75 chars.
	-[10/10] fix return variable being used without being initialized

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.

To: Andrzej Hajda <andrzej.hajda@intel.com>
To: Neil Armstrong <neil.armstrong@linaro.org>
To: Robert Foss <rfoss@kernel.org>
To: Laurent Pinchart <Laurent.pinchart@ideasonboard.com>
To: Jonas Karlman <jonas@kwiboo.se>
To: Jernej Skrabec <jernej.skrabec@gmail.com>
To: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
To: Maxime Ripard <mripard@kernel.org>
To: Thomas Zimmermann <tzimmermann@suse.de>
To: David Airlie <airlied@gmail.com>
To: Simona Vetter <simona@ffwll.ch>
To: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
To: Hermes Wu <hermes.wu@ite.com.tw>
Cc: dri-devel@lists.freedesktop.org
Cc: linux-kernel@vger.kernel.org
Cc: Pin-yen Lin <treapking@chromium.org>
Cc: Kenneth Hung <Kenneth.Hung@ite.com.tw>
Cc: Pet Weng <Pet.Weng@ite.com.tw> 

Signed-off-by: Hermes Wu <Hermes.wu@ite.com.tw>
---
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 | 335 ++++++++++++++++++++++++++++++------
 1 file changed, 278 insertions(+), 57 deletions(-)
---
base-commit: 4d1c251e8889b4629789425fe85adfc6d39666ac
change-id: 20241101-v7-upstream-75ead2f2f567

Best regards,