From: Hermes Wu
Changes in v3:
-remove non used definition for aux i2x cmd reply
Add Aux-I2C functionality to support MCCS.
Signed-off-by: Hermes Wu
---
drivers/gpu/drm/bridge/ite-it6505.c | 174 +++-
1 file changed, 172 insertions(+), 2 deletions(-)
diff --git a
From: Hermes Wu
Changes in v3:
-New in v3
it6505 AUX FIFO mode only 16 byte.
AUX FIFO mode only supports EDID read and DPCD KSV FIFO area.
Signed-off-by: Hermes Wu
---
drivers/gpu/drm/bridge/ite-it6505.c | 25 +
1 file changed, 17 insertions(+), 8 deletions(-)
diff
From: Hermes Wu
Changes in v3
-Seperate AUX fifo access to a commit
-Add discriptions about HDCP CTS
-remove non used aux i2c reply definitions
Hermes Wu (3):
drm/bridge: it6505: fix AUX read use aux fifo
drm/bridge: it6505: HDCP CTS fail on repeater items
drm/bridge: it6505: Add MCCS
From: Hermes Wu
Changes in v3:
-New in v3
it6505 AUX FIFO mode only 16 byte.
AUX FIFO mode only supports EDID read and DPCD KSV FIFO area.
Signed-off-by: Hermes Wu
---
drivers/gpu/drm/bridge/ite-it6505.c | 25 +
1 file changed, 17 insertions(+), 8 deletions(-)
diff
From: Hermes Wu
Changes in v3:
-add detials about fail item and changes.
Fix HDCP CTS fail items on UNIGRAF DRP-100
DUT must Support 127 devices.
DUT must check BSTATUS when recive CP_IRQ.
DUT must enable encription when R0' is ready.
DUT must retry V' check 3 times.
it6505 must re
From: Hermes Wu
The EDID read operation can reach the maximum size of the AUX FIFO buffer.
Fixes: b5c84a9edcd4 ("drm/bridge: add it6505 driver")
Signed-off-by: Hermes Wu
---
drivers/gpu/drm/bridge/ite-it6505.c | 8 ++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git
From: Hermes Wu
The aux control register command is 4 bits LSB only, adding a MACRO to get
correct operaction command.
Fixes: b5c84a9edcd4 ("drm/bridge: add it6505 driver")
Signed-off-by: Hermes Wu
---
drivers/gpu/drm/bridge/ite-it6505.c | 4 +++-
1 file changed, 3 insertions(+),
From: Hermes Wu
The hardware aux fifo is 16 byte
Change definition of AUX_FIFO_MAX_SIZE to 16
Fixes: b5c84a9edcd4 ("drm/bridge: add it6505 driver")
Signed-off-by: Hermes Wu
---
drivers/gpu/drm/bridge/ite-it6505.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git
From: Hermes Wu
Add aux operaction command which supports read DPCD KSV FIFO
with aux fifo.
Fixes: b5c84a9edcd4 ("drm/bridge: add it6505 driver")
Signed-off-by: Hermes Wu
---
drivers/gpu/drm/bridge/ite-it6505.c | 12
1 file changed, 8 insertions(+), 4 deletions(-)
di
From: Hermes Wu
This is a v4 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
From: Hermes Wu
When HDCP negotiation with a repeater device. Checking SHA V' matching
must retry 3 times before restarting HDCP.
Fixes: b5c84a9edcd4 ("drm/bridge: add it6505 driver")
Signed-off-by: Hermes Wu
---
drivers/gpu/drm/bridge/ite-it6505.c | 32 +
From: Hermes Wu
When HDCP is activated, A DisplayPort source receives CP_IRQ from the
sink shall check Bstatus from DPCD and process the corresponding value.
Fixes: b5c84a9edcd4 ("drm/bridge: add it6505 driver")
Signed-off-by: Hermes Wu
---
drivers/gpu/drm/bridge/ite-it6
From: Hermes Wu
When starting HDCP authentication, HDCP encryption should be enabled on
the link when R0' is checked.
Change encryption enables time at R0' ready.
Hardware HDCP engine trigger changes repeater fail to restart flow.
Fixes: b5c84a9edcd4 ("drm/bridge: add it6505
From: Hermes Wu
A HDCP source shall support max downstream device to 127.
Change definition of MAX_HDCP_DOWN_STREAM_COUNT to 127
Fixes: b5c84a9edcd4 ("drm/bridge: add it6505 driver")
Signed-off-by: Hermes Wu
---
drivers/gpu/drm/bridge/ite-it6505.c | 2 +-
1 file changed, 1 inser
From: Hermes Wu
When running the HDCP CTS test on UNIGRAF DPR-100.
KSV list must be read from DPCD with 5 byte boundary.
The original aux operation using AUX_NATIVE_READ can not read back the
KSV list correctly.
Change to CMD_AUX_GET_KSV_LIST operaction.
Fixes: b5c84a9edcd4 ("drm/bridge
From: Hermes Wu
When running the HDCP CTS test on UNIGRAF DPR-100.
HDCP must disabled after waiting KSV for 5s.
Consider system ksv work schedules. The original timer has a chance to expire.
Fixes: b5c84a9edcd4 ("drm/bridge: add it6505 driver")
Signed-off-by: Hermes Wu
---
drive
From: Hermes Wu
Add aux-i2c operaction in order to support the MCCS function.
Fixes: b5c84a9edcd4 ("drm/bridge: add it6505 driver")
Signed-off-by: Hermes Wu
---
drivers/gpu/drm/bridge/ite-it6505.c | 177 +++-
1 file changed, 175 insertions(+), 2 deletion
From: "Hermes.Wu"
add AUX-I2C functionality to support MCCS.
Change-Id: I63e1a0e5da67526f89f35605a82944be67dee8ac
Signed-off-by: Hermes Wu
---
drivers/gpu/drm/bridge/ite-it6505.c | 209 ++--
1 file changed, 200 insertions(+), 9 deletions(-)
diff --git a/d
From: allen chen
Fix HDCP CTS items on UNIGRAF DPR-100.
Change-Id: I03f0758779f73164c8ae2fdf61e41dc693e27605
Change-Id: Ib7a8fabaeccd56d3bd7c8adc7384a363b0f7b88d
Signed-off-by: Hermes Wu
---
drivers/gpu/drm/bridge/ite-it6505.c | 152 ++--
1 file changed, 101
From: "Hermes.Wu"
Add AUX i2c funtion for MCCS
Change-Id: Ia8952f3cde4d9610d6f8a0c3915fc6ffefc6da22
Signed-off-by: Hermes Wu
---
drivers/gpu/drm/bridge/ite-it6505.c | 209 ++--
1 file changed, 200 insertions(+), 9 deletions(-)
diff --git a/drivers/gpu/drm/
From: "Hermes.Wu"
This series change aux function to support MCCS and fix HDCP CTS
Hermes.Wu (1):
drm/bridge: it6505: Add MSSC suport
allen chen (1):
drm/bridge: it6505: HDCP CTS fail on repeater items
drivers/gpu/drm/bridge/ite-it6505.c | 343 +++-
1 file change
From: Hermes Wu
add AUX-I2C functionality to support MCCS
Signed-off-by: Hermes Wu
---
drivers/gpu/drm/bridge/ite-it6505.c | 209 ++--
1 file changed, 200 insertions(+), 9 deletions(-)
diff --git a/drivers/gpu/drm/bridge/ite-it6505.c
b/drivers/gpu/drm/bridge/ite
From: allen chen
Fix HDCP CTS items on UNIGRAF DPR-100.
Change-Id: I03f0758779f73164c8ae2fdf61e41dc693e27605
Change-Id: Ib7a8fabaeccd56d3bd7c8adc7384a363b0f7b88d
Signed-off-by: Hermes Wu
---
drivers/gpu/drm/bridge/ite-it6505.c | 152 ++--
1 file changed, 101
From: Hermes Wu
This series change aux function to support MCCS and fix HDCP CTS
Hermes Wu (2):
drm/bridge: it6505: HDCP CTS fail on repeater
drm/bridge: it6505: Add MCCS support
drivers/gpu/drm/bridge/ite-it6505.c | 343 +++-
1 file changed, 292 insertions(+), 51
From: Hermes Wu
Fix HDCP CTS items on UNIGRAF DPR-100
Signed-off-by: Hermes Wu
---
drivers/gpu/drm/bridge/ite-it6505.c | 152 ++--
1 file changed, 101 insertions(+), 51 deletions(-)
diff --git a/drivers/gpu/drm/bridge/ite-it6505.c
b/drivers/gpu/drm/bridge/ite-it6505
From: "Hermes.Wu"
This series change aux function to support MCCS and fix HDCP CTS
Hermes.Wu (1):
drm/bridge: it6505: Add MSSC suport
allen chen (1):
drm/bridge: it6505: HDCP CTS fail on repeater items
drivers/gpu/drm/bridge/ite-it6505.c | 343 +++-
1 file change
From: "Hermes.Wu"
add AUX-I2C functionality to support MCCS.
Change-Id: I63e1a0e5da67526f89f35605a82944be67dee8ac
Signed-off-by: Hermes Wu
---
drivers/gpu/drm/bridge/ite-it6505.c | 209 ++--
1 file changed, 200 insertions(+), 9 deletions(-)
diff --git a/d
From: Hermes Wu
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
From: Hermes Wu
The hardware AUX FIFO is 16 bytes
Change definition of AUX_FIFO_MAX_SIZE to 16
Fixes: b5c84a9edcd4 ("drm/bridge: add it6505 driver")
Signed-off-by: Hermes Wu
---
drivers/gpu/drm/bridge/ite-it6505.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/d
From: Hermes Wu
The original AUX operation using data registers is limited to 4 bytes.
The AUX operation command CMD_AUX_I2C_EDID_READ uses AUX FIFO and is capable of
reading 16 bytes.
This improves the speed of EDID read.
Signed-off-by: Hermes Wu
---
drivers/gpu/drm/bridge/ite-it6505.c | 10
From: Hermes Wu
A HDCP source device shall support max downstream to 127 devices.
Change definition MAX_HDCP_DOWN_STREAM_COUNT to 127
KSVs shall save for DRM blocked devices check.
This results in struct it6505 growth by ~0.5 KiB.
Signed-off-by: Hermes Wu
---
drivers/gpu/drm/bridge/ite
From: Hermes Wu
When running the HDCP CTS test with UNIGRAF DPR-100.
KSV list must be read from DP_AUX_HDCP_KSV_FIFO in an AUX request, and can not
separate with multiple read requests.
The AUX operation command "CMD_AUX_GET_KSV_LIST" reads the KSV list with AUX
FIFO and is ab
From: Hermes Wu
When HDCP negotiation with a repeater device.
Checking SHA V' matching must retry 3 times before restarting HDCP.
Signed-off-by: Hermes Wu
---
drivers/gpu/drm/bridge/ite-it6505.c | 32 +
1 file changed, 19 insertions(+), 13 deletions(-)
diff
From: Hermes Wu
When HDCP is activated,
a DisplayPort source receiving CP_IRQ from the sink
shall check Bstatus from DPCD and process the corresponding value
Signed-off-by: Hermes Wu
---
drivers/gpu/drm/bridge/ite-it6505.c | 12 +---
1 file changed, 9 insertions(+), 3 deletions
From: Hermes Wu
When starting HDCP authentication, HDCP encryption should be enabled when R0'is
checked.
Change encryption enables time at R0' ready.
The hardware HDCP engine trigger is changed and the repeater KSV fails will
restart HDCP.
Signed-off-by: Hermes Wu
---
drive
From: Hermes Wu
HDCP KSV list readback can choose to use AUX FIFO or general data register.
For some DisplayPort devices, the KSV list must be read in 5 byte boundaries.
The original AUX read command does not support these devices.
The AUX command operation control register "REG_AUX_CM
From: Hermes Wu
DisplayPort AUX protocol supports I2C transport which is capable of reading
EDID or supports MCCS.
In drm_dp_helper, drm_dp_i2c_xfer() packs I2C requests into a sequence of AUX
requests.
it6505_aux_i2c_operation() is implemented to match drm_dp_i2c_xfer() behavior
From: Hermes Wu
HDCP must disabled encryption and restart authentication after waiting KSV for
5s.
The original method uses a counter in a waitting loop that may wait much longer
than it is supposed to.
Use time_after() for KSV wait timeout.
Signed-off-by: Hermes Wu
---
drivers/gpu/drm
From: Hermes Wu
When HDCP negotiation with a repeater device.
Checking SHA V' matching must retry 3 times before restarting HDCP.
Signed-off-by: Hermes Wu
---
drivers/gpu/drm/bridge/ite-it6505.c | 32 +++-
1 file changed, 19 insertions(+), 13 deletions(-)
From: Hermes Wu
When running the HDCP CTS test with UNIGRAF DPR-100.
KSV list must be read from DP_AUX_HDCP_KSV_FIFO in an AUX request,
and can not separate with multiple read requests.
The AUX operation command "CMD_AUX_GET_KSV_LIST" reads the KSV list
with AUX FIFO and is ab
From: Hermes Wu
When starting HDCP authentication, HDCP encryption should be enabled
when R0'is checked.
Change encryption enables time at R0' ready.
The hardware HDCP engine trigger is changed and the repeater KSV fails
will restart HDCP.
Signed-off-by: Hermes Wu
---
drivers/gpu/
From: Hermes Wu
A HDCP source device shall support max downstream to 127 devices.
Change definition MAX_HDCP_DOWN_STREAM_COUNT to 127
KSVs shall save for DRM blocked devices check.
This results in struct it6505 growth by ~0.5 KiB.
Signed-off-by: Hermes Wu
---
drivers/gpu/drm/bridge/ite
From: Hermes Wu
DisplayPort AUX protocol supports I2C transport which is capable of
reading EDID or supports MCCS.
In drm_dp_helper, drm_dp_i2c_xfer() packs I2C requests into a
sequence of AUX requests.
it6505_aux_i2c_operation() is implemented to match drm_dp_i2c_xfer()
operactions
t 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 ope
From: Hermes Wu
HDCP KSV list readback can choose to use AUX FIFO or
general data register.
For some DisplayPort devices, the KSV list must be read
in 5 byte boundaries.
The original AUX read command does not support these devices.
The AUX command operation control register "REG_AUX_CM
From: Hermes Wu
When HDCP is activated,
a DisplayPort source receiving CP_IRQ from the sink
shall check Bstatus from DPCD and process the corresponding value
Signed-off-by: Hermes Wu
---
drivers/gpu/drm/bridge/ite-it6505.c | 12 +---
1 file changed, 9 insertions(+), 3 deletions
From: Hermes Wu
HDCP must disabled encryption and restart authentication after
waiting KSV for 5s.
The original method uses a counter in a waitting loop that may
wait much longer than it is supposed to.
Use time_after() for KSV wait timeout.
Signed-off-by: Hermes Wu
---
drivers/gpu/drm/bridge
From: Hermes Wu
The hardware AUX FIFO is 16 bytes
Change definition of AUX_FIFO_MAX_SIZE to 16
Fixes: b5c84a9edcd4 ("drm/bridge: add it6505 driver")
Signed-off-by: Hermes Wu
---
drivers/gpu/drm/bridge/ite-it6505.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/d
From: Hermes Wu
The original AUX operation using data registers is limited to 4 bytes.
The AUX operation command CMD_AUX_I2C_EDID_READ uses AUX FIFO and
is capable of reading 16 bytes.
This improves the speed of EDID read.
Signed-off-by: Hermes Wu
---
drivers/gpu/drm/bridge/ite-it6505.c | 10
- ignored.
To: Andrzej Hajda
To: Neil Armstrong
To: Robert Foss
To: Laurent Pinchart
To: Jonas Karlman
To: Jernej Skrabec
To: Maarten Lankhorst
To: Maxime Ripard
To: Thomas Zimmermann
To: David Airlie
To: Simona Vetter
To: AngeloGioacchino Del Regno
To: Hermes Wu
Cc: dri-devel@lists.
From: Hermes Wu
HDCP KSV list readback can choose to use AUX FIFO or
general data register.
For some DisplayPort devices, the KSV list must be read
in 5 byte boundaries.
The original AUX read command does not support these devices.
The AUX command operation control register "REG_AUX_CM
From: Hermes Wu
The original AUX operation using data registers is limited to 4 bytes.
The AUX operation command CMD_AUX_I2C_EDID_READ uses AUX FIFO and
is capable of reading 16 bytes.
This improves the speed of EDID read.
Reviewed-by: Dmitry Baryshkov
Signed-off-by: Hermes Wu
---
drivers
From: Hermes Wu
A HDCP source device shall support max downstream to 127 devices.
Change definition MAX_HDCP_DOWN_STREAM_COUNT to 127
KSVs shall save for DRM blocked devices check.
This results in struct it6505 growth by ~0.5 KiB.
Reviewed-by: Dmitry Baryshkov
Signed-off-by: Hermes Wu
From: Hermes Wu
When HDCP negotiation with a repeater device.
Checking SHA V' matching must retry 3 times before restarting HDCP.
Signed-off-by: Hermes Wu
---
drivers/gpu/drm/bridge/ite-it6505.c | 32 +++-
1 file changed, 19 insertions(+), 13 deletions(-)
From: Hermes Wu
The hardware AUX FIFO is 16 bytes
Change definition of AUX_FIFO_MAX_SIZE to 16
Fixes: b5c84a9edcd4 ("drm/bridge: add it6505 driver")
Reviewed-by: Dmitry Baryshkov
Signed-off-by: Hermes Wu
---
drivers/gpu/drm/bridge/ite-it6505.c | 2 +-
1 file changed, 1 inser
From: Hermes Wu
HDCP must disabled encryption and restart authentication after
waiting KSV for 5s.
The original method uses a counter in a waitting loop that may
wait much longer than it is supposed to.
Use time_after() for KSV wait timeout.
Signed-off-by: Hermes Wu
---
drivers/gpu/drm/bridge
From: Hermes Wu
When starting HDCP authentication, HDCP encryption should be enabled
when R0'is checked.
Change encryption enables time at R0' ready.
The hardware HDCP engine trigger is changed and the repeater KSV fails
will restart HDCP.
Signed-off-by: Hermes Wu
---
drivers/gpu/
From: Hermes Wu
When HDCP is activated,
a DisplayPort source receiving CP_IRQ from the sink
shall check Bstatus from DPCD and process the corresponding value
Reviewed-by: Dmitry Baryshkov
Signed-off-by: Hermes Wu
---
drivers/gpu/drm/bridge/ite-it6505.c | 12 +---
1 file changed, 9
From: Hermes Wu
When running the HDCP CTS test with UNIGRAF DPR-100.
KSV list must be read from DP_AUX_HDCP_KSV_FIFO in an AUX request,
and can not separate with multiple read requests.
The AUX operation command "CMD_AUX_GET_KSV_LIST" reads the KSV list
with AUX FIFO and is ab
From: Hermes Wu
DisplayPort AUX protocol supports I2C transport which is capable of
reading EDID or supports MCCS.
In drm_dp_helper, drm_dp_i2c_xfer() packs I2C requests into a
sequence of AUX requests.
it6505_aux_i2c_operation() is implemented to match drm_dp_i2c_xfer()
operactions
From: Hermes Wu
The original AUX operation using data registers is limited to 4 bytes.
The AUX operation command CMD_AUX_I2C_EDID_READ uses AUX FIFO and
is capable of reading 16 bytes.
This improves the speed of EDID read.
Reviewed-by: Dmitry Baryshkov
Signed-off-by: Hermes Wu
---
drivers
From: Hermes Wu
HDCP KSV list readback can choose to use AUX FIFO or
general data register.
For some DisplayPort devices, the KSV list must be read
in 5 byte boundaries.
The original AUX read command does not support these devices.
The AUX command operation control register "REG_AUX_CM
From: Hermes Wu
When starting HDCP authentication, HDCP encryption should be enabled
when R0'is checked.
Change encryption enables time at R0' ready.
The hardware HDCP engine trigger is changed and the repeater KSV fails
will restart HDCP.
Signed-off-by: Hermes Wu
---
drivers/gpu/
- ignored.
To: Andrzej Hajda
To: Neil Armstrong
To: Robert Foss
To: Laurent Pinchart
To: Jonas Karlman
To: Jernej Skrabec
To: Maarten Lankhorst
To: Maxime Ripard
To: Thomas Zimmermann
To: David Airlie
To: Simona Vetter
To: AngeloGioacchino Del Regno
To: Hermes Wu
Cc: dri-devel@lists.
From: Hermes Wu
A HDCP source device shall support max downstream to 127 devices.
Change definition MAX_HDCP_DOWN_STREAM_COUNT to 127
KSVs shall save for DRM blocked devices check.
This results in struct it6505 growth by ~0.5 KiB.
Reviewed-by: Dmitry Baryshkov
Signed-off-by: Hermes Wu
From: Hermes Wu
When HDCP is activated,
a DisplayPort source receiving CP_IRQ from the sink
shall check Bstatus from DPCD and process the corresponding value
Reviewed-by: Dmitry Baryshkov
Signed-off-by: Hermes Wu
---
drivers/gpu/drm/bridge/ite-it6505.c | 12 +---
1 file changed, 9
From: Hermes Wu
HDCP must disabled encryption and restart authentication after
waiting KSV for 5s.
The original method uses a counter in a waitting loop that may
wait much longer than it is supposed to.
Use time_after() for KSV wait timeout.
Signed-off-by: Hermes Wu
---
drivers/gpu/drm/bridge
From: Hermes Wu
The hardware AUX FIFO is 16 bytes
Change definition of AUX_FIFO_MAX_SIZE to 16
Fixes: b5c84a9edcd4 ("drm/bridge: add it6505 driver")
Reviewed-by: Dmitry Baryshkov
Signed-off-by: Hermes Wu
---
drivers/gpu/drm/bridge/ite-it6505.c | 2 +-
1 file changed, 1 inser
From: Hermes Wu
When running the HDCP CTS test with UNIGRAF DPR-100.
KSV list must be read from DP_AUX_HDCP_KSV_FIFO in an AUX request,
and can not separate with multiple read requests.
The AUX operation command "CMD_AUX_GET_KSV_LIST" reads the KSV list
with AUX FIFO and is ab
From: Hermes Wu
When HDCP negotiation with a repeater device.
Checking SHA V' matching must retry 3 times before restarting HDCP.
Signed-off-by: Hermes Wu
---
drivers/gpu/drm/bridge/ite-it6505.c | 32 +++-
1 file changed, 19 insertions(+), 13 deletions(-)
From: Hermes Wu
DisplayPort AUX protocol supports I2C transport which is capable of
reading EDID or supports MCCS.
In drm_dp_helper, drm_dp_i2c_xfer() packs I2C requests into a
sequence of AUX requests.
it6505_aux_i2c_operation() is implemented to match drm_dp_i2c_xfer()
operactions
From: Hermes Wu
For supporting audio form I2S to DP audio data sub stream.
Add hdmi_audio callbacks to drm_bridge_funcs for the
HDMI codec framework. The DRM_BRIDGE_OP_HDMI flag in bridge.ops
must be set, and hdmi_write_infoframe and hdmi_clear_infoframe
are necessary for the
: Hermes Wu
---
Changes in v3:
- Separate DRM_BRIDGE_OP_HDMI supports and audio callbacks into two commits.
- Link to v2:
https://lore.kernel.org/r/20250203-add-audio-codec-v2-1-5c8cd72ee...@ite.com.tw
Changes in v2:
- Use DRM HDMI codec framewrok for audio stream setup.
- Link to v1:
https
From: Hermes Wu
Add DRM_BRIDGE_OP_HDMI to bridge.ops and implement necessary callback
functions.
The native AVI and AUDIO infoframe configuration API are removed.
In .atomic_enable use
drm_atomic_helper_connector_hdmi_update_infoframes().
for infoframe updates.
Signed-off-by: Hermes Wu
From: Hermes Wu
For supporting audio form I2S to DP audio data sub stream.
Add hdmi_audio callbacks to drm_bridge_funcs for the HDMI codec
framework.
Signed-off-by: Hermes Wu
---
drivers/gpu/drm/bridge/ite-it6505.c | 46 +
1 file changed, 46 insertions
From: Hermes Wu
The loop of V compare is expected to iterate for 5 times
which compare V array form av[0][] to av[4][].
It should check loop counter reach the last statement before return true
Fixes: 0989c02c7a5c ("drm/bridge: it6505: fix HDCP CTS compare V matching")
Reviewed-
From: Hermes Wu
The loop of V compare is expected to iterate for 5 times
which compare V array form av[0][] to av[4][].
It should check loop counter reach the last statement "i == 5"
before return true
Fixes: 0989c02c7a5c ("drm/bridge: it6505: fix HDCP CTS compare V matchin
From: Hermes Wu
IT6505 supports audio form I2S to DP audio data sub stream
Support audio codec operation include
hw_params, audio_startup, audio_shutdown, hook_plugged_cb.
In order to prevent pop noise from sink devise, delay audio by
after I2S signal is enable by source.
Signed-off-by
From: Hermes Wu
Fix a typo where V compare incorrectly compares av[] with av[] itself,
which can result in HDCP failure.
The loop of V compare is expected to iterate for 5 times
which compare V array form av[0][] to av[4][].
It should check loop counter reach the last statement "i == 5&qu
to beginning, and never try
step training method.
Modify training method improve compatibility to these DP devices.
Signed-off-by: Hermes Wu
---
Hermes Wu (3):
drm/bridge: it6505: modify DP link auto training
drm/bridge: it6505: modify DP link training work
drm/bridge: it6505
From: Hermes Wu
IT6505 supports HW link training which will write DPCD and check
training status automatically.
In the case that driver set link rate at 2.7G and HW fail to training,
it will change link configuration and try 1.65G. And this will cause
INT_VID_FIFO_ERROR triggered when link
From: Hermes Wu
When connect to device which can only training done by
step training, skip auto training when link training restart,
usually happen when display resolution is changed.
Signed-off-by: Hermes Wu
---
drivers/gpu/drm/bridge/ite-it6505.c | 36 +---
1
From: Hermes Wu
The DP link training work include auto training and after
auto training failed "auto_train_retry" times, it switch to
step training mode.
It will more efficiency that finish link auto training,
include retry, and step training in a work, rather than
re-schedule train
From: Hermes Wu
The loop of V compare is expected to iterate for 5 times
which compare V array form av[0][] to av[4][].
It should check loop counter reach the last statement before return true
Fixes: 0989c02c7a5c ("drm/bridge: it6505: fix HDCP CTS compare V matching")
Signed-off-by:
From: Hermes Wu
The DP link training work include auto training and after
auto training failed "auto_train_retry" times, it switch to
step training mode.
It will more efficiency that finish link auto training,
include retry, and step training in a work, rather than
re-schedule train
From: Hermes Wu
IT6505 supports HW link training which will write DPCD and check
training status automatically.
In the case that driver set link rate at 2.7G and HW fail to training,
it will change link configuration and try 1.65G. And this will cause
INT_VID_FIFO_ERROR triggered when link
beginning, and never try
step training method.
Modify training method improve compatibility to these DP devices.
Signed-off-by: Hermes Wu
---
Hermes Wu (3):
drm/bridge: it6505: modify DP link auto training
drm/bridge: it6505: modify DP link training work
drm/bridge: it6505
From: Hermes Wu
When connect to a DP-to-HDMI device which does not connect
to HDMI sink, it will report DPCD 00200h with SINK_COUNT = "0",
and issue HPD_IRQ when SINK_COUNT change to "1".
IT6505 can not recive HPD_IRQ before training done and driver will
force HW enter trai
From: Hermes Wu
When connect to device which can only training done by
step training, skip auto training when link training restart,
usually happen when display resolution is changed.
Signed-off-by: Hermes Wu
---
drivers/gpu/drm/bridge/ite-it6505.c | 36 +---
1
From: Hermes Wu
The DP link training work include auto training and after
auto training failed "AUTO_TRAIN_RETRY" times, it switch to
step training mode.
It will more efficiency that finish link auto training,
include retry, and step training in a work, rather than
re-schedule train
From: Hermes Wu
In order to reset HW link auto training state,
bits FORCE_RETRAIN and MANUAL_TRAIN at REG_TRAIN_CTRL1 must be set
at the same time.
Signed-off-by: Hermes Wu
---
drivers/gpu/drm/bridge/ite-it6505.c | 6 --
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a
From: Hermes Wu
When connect to device which can only training done by
step training, skip auto training when link training restart,
usually happen when display resolution is changed.
Signed-off-by: Hermes Wu
---
drivers/gpu/drm/bridge/ite-it6505.c | 29 +
1 file
From: Hermes Wu
IT6505 supports HW link training which will write DPCD and check
training status automatically.
In the case that driver set link rate at 2.7G and HW fail to training,
it will change link configuration and try 1.65G. And this will cause
INT_VID_FIFO_ERROR triggered when link
From: Hermes Wu
When start link training, interrupt status INT_LINK_TRAIN_FAIL can
use to check link training fail and no need to wait until timeout.
it6505_irq_link_train_fail() remove from interrupt and no longer used.
Signed-off-by: Hermes Wu
---
drivers/gpu/drm/bridge/ite-it6505.c | 25
ing-v1-0-192667111...@ite.com.tw/
Signed-off-by: Hermes Wu
---
Hermes Wu (5):
drm/bridge: it6505: fix link training state HW register reset
drm/bridge: it6505: check INT_LINK_TRAIN_FAIL while link auto training
drm/bridge: it6505: modify DP link auto training
drm/bridge: it6
From: Hermes Wu
When connect to device which can only training done by
step training, skip auto training when link training restart,
usually happen when display resolution is changed.
Signed-off-by: Hermes Wu
---
drivers/gpu/drm/bridge/ite-it6505.c | 8 ++--
1 file changed, 6 insertions
From: Hermes Wu
IT6505 supports HW link training which will write DPCD and check
training status automatically.
In the case that driver set link rate at 2.7G and HW fail to training,
it will change link configuration and try 1.65G. And this will cause
INT_VID_FIFO_ERROR triggered when link
From: Hermes Wu
The DP link training work include auto training and after
auto training failed "AUTO_TRAIN_RETRY" times, it switch to
step training mode.
It will more efficiency that finish link auto training,
include retry, and step training in a work, rather than
re-schedule train
beginning, and never try
step training method.
Modify training method improve compatibility to these DP devices.
Signed-off-by: Hermes Wu
---
Changes in v3:
- Patch 1/5 : add commit message for detial about changes
- Patch 2/5 : fix lost variable struct device *dev;
- Patch 3/5 : keep changes
From: Hermes Wu
When start link training, interrupt status INT_LINK_TRAIN_FAIL can
use to check link training fail and no need to wait until timeout.
it6505_irq_link_train_fail() remove from interrupt and no longer used.
Signed-off-by: Hermes Wu
---
drivers/gpu/drm/bridge/ite-it6505.c | 26
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