<feed xmlns='http://www.w3.org/2005/Atom'>
<title>linux-stable.git/include/drm/display, branch v6.1.96</title>
<subtitle>Linux kernel stable tree</subtitle>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/'/>
<entry>
<title>drm/dp: Don't attempt AUX transfers when eDP panels are not powered</title>
<updated>2024-06-12T09:03:21+00:00</updated>
<author>
<name>Douglas Anderson</name>
<email>dianders@chromium.org</email>
</author>
<published>2024-02-02T22:11:16+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=90bd113e65fc5a22640aefb262f397974bfb3d33'/>
<id>90bd113e65fc5a22640aefb262f397974bfb3d33</id>
<content type='text'>
[ Upstream commit 8df1ddb5bf11ab820ad991e164dab82c0960add9 ]

If an eDP panel is not powered on then any attempts to talk to it over
the DP AUX channel will timeout. Unfortunately these attempts may be
quite slow. Userspace can initiate these attempts either via a
/dev/drm_dp_auxN device or via the created i2c device.

Making the DP AUX drivers timeout faster is a difficult proposition.
In theory we could just poll the panel's HPD line in the AUX transfer
function and immediately return an error there. However, this is
easier said than done. For one thing, there's no hard requirement to
hook the HPD line up for eDP panels and it's OK to just delay a fixed
amount. For another thing, the HPD line may not be fast to probe. On
parade-ps8640 we need to wait for the bridge chip's firmware to boot
before we can get the HPD line and this is a slow process.

The fact that the transfers are taking so long to timeout is causing
real problems. The open source fwupd daemon sometimes scans DP busses
looking for devices whose firmware need updating. If it happens to
scan while a panel is turned off this scan can take a long time. The
fwupd daemon could try to be smarter and only scan when eDP panels are
turned on, but we can also improve the behavior in the kernel.

Let's let eDP panels drivers specify that a panel is turned off and
then modify the common AUX transfer code not to attempt a transfer in
this case.

Tested-by: Steev Klimaszewski &lt;steev@kali.org&gt;
Reviewed-by: Hsin-Yi Wang &lt;hsinyi@chromium.org&gt;
Tested-by: Eizan Miyamoto &lt;eizan@chromium.org&gt;
Acked-by: Neil Armstrong &lt;neil.armstrong@linaro.org&gt;
Signed-off-by: Douglas Anderson &lt;dianders@chromium.org&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20240202141109.1.I24277520ac754ea538c9b14578edc94e1df11b48@changeid
Stable-dep-of: 5e842d55bad7 ("drm/panel: atna33xc20: Fix unbalanced regulator in the case HPD doesn't assert")
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
[ Upstream commit 8df1ddb5bf11ab820ad991e164dab82c0960add9 ]

If an eDP panel is not powered on then any attempts to talk to it over
the DP AUX channel will timeout. Unfortunately these attempts may be
quite slow. Userspace can initiate these attempts either via a
/dev/drm_dp_auxN device or via the created i2c device.

Making the DP AUX drivers timeout faster is a difficult proposition.
In theory we could just poll the panel's HPD line in the AUX transfer
function and immediately return an error there. However, this is
easier said than done. For one thing, there's no hard requirement to
hook the HPD line up for eDP panels and it's OK to just delay a fixed
amount. For another thing, the HPD line may not be fast to probe. On
parade-ps8640 we need to wait for the bridge chip's firmware to boot
before we can get the HPD line and this is a slow process.

The fact that the transfers are taking so long to timeout is causing
real problems. The open source fwupd daemon sometimes scans DP busses
looking for devices whose firmware need updating. If it happens to
scan while a panel is turned off this scan can take a long time. The
fwupd daemon could try to be smarter and only scan when eDP panels are
turned on, but we can also improve the behavior in the kernel.

Let's let eDP panels drivers specify that a panel is turned off and
then modify the common AUX transfer code not to attempt a transfer in
this case.

Tested-by: Steev Klimaszewski &lt;steev@kali.org&gt;
Reviewed-by: Hsin-Yi Wang &lt;hsinyi@chromium.org&gt;
Tested-by: Eizan Miyamoto &lt;eizan@chromium.org&gt;
Acked-by: Neil Armstrong &lt;neil.armstrong@linaro.org&gt;
Signed-off-by: Douglas Anderson &lt;dianders@chromium.org&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20240202141109.1.I24277520ac754ea538c9b14578edc94e1df11b48@changeid
Stable-dep-of: 5e842d55bad7 ("drm/panel: atna33xc20: Fix unbalanced regulator in the case HPD doesn't assert")
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/display/dp: Fix the DP DSC Receiver cap size</title>
<updated>2023-08-30T14:11:09+00:00</updated>
<author>
<name>Ankit Nautiyal</name>
<email>ankit.k.nautiyal@intel.com</email>
</author>
<published>2023-08-18T04:44:36+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=3bc9b0364a8c64d1bb1757b620ea3b9104e8054b'/>
<id>3bc9b0364a8c64d1bb1757b620ea3b9104e8054b</id>
<content type='text'>
commit 5ad1ab30ac0809d2963ddcf39ac34317a24a2f17 upstream.

DP DSC Receiver Capabilities are exposed via DPCD 60h-6Fh.
Fix the DSC RECEIVER CAP SIZE accordingly.

Fixes: ffddc4363c28 ("drm/dp: Add DP DSC DPCD receiver capability size define and missing SHIFT")
Cc: Anusha Srivatsa &lt;anusha.srivatsa@intel.com&gt;
Cc: Manasi Navare &lt;manasi.d.navare@intel.com&gt;
Cc: &lt;stable@vger.kernel.org&gt; # v5.0+

Signed-off-by: Ankit Nautiyal &lt;ankit.k.nautiyal@intel.com&gt;
Reviewed-by: Stanislav Lisovskiy &lt;stanislav.lisovskiy@intel.com&gt;
Signed-off-by: Jani Nikula &lt;jani.nikula@intel.com&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20230818044436.177806-1-ankit.k.nautiyal@intel.com
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
commit 5ad1ab30ac0809d2963ddcf39ac34317a24a2f17 upstream.

DP DSC Receiver Capabilities are exposed via DPCD 60h-6Fh.
Fix the DSC RECEIVER CAP SIZE accordingly.

Fixes: ffddc4363c28 ("drm/dp: Add DP DSC DPCD receiver capability size define and missing SHIFT")
Cc: Anusha Srivatsa &lt;anusha.srivatsa@intel.com&gt;
Cc: Manasi Navare &lt;manasi.d.navare@intel.com&gt;
Cc: &lt;stable@vger.kernel.org&gt; # v5.0+

Signed-off-by: Ankit Nautiyal &lt;ankit.k.nautiyal@intel.com&gt;
Reviewed-by: Stanislav Lisovskiy &lt;stanislav.lisovskiy@intel.com&gt;
Signed-off-by: Jani Nikula &lt;jani.nikula@intel.com&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20230818044436.177806-1-ankit.k.nautiyal@intel.com
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/dp_mst: Clear MSG_RDY flag before sending new message</title>
<updated>2023-07-27T06:50:52+00:00</updated>
<author>
<name>Wayne Lin</name>
<email>Wayne.Lin@amd.com</email>
</author>
<published>2023-07-24T22:26:34+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=00f68f5c1be12828a6f0b1e0f1017e1399b23a73'/>
<id>00f68f5c1be12828a6f0b1e0f1017e1399b23a73</id>
<content type='text'>
commit 72f1de49ffb90b29748284f27f1d6b829ab1de95 upstream.

[Why]
The sequence for collecting down_reply from source perspective should
be:

Request_n-&gt;repeat (get partial reply of Request_n-&gt;clear message ready
flag to ack DPRX that the message is received) till all partial
replies for Request_n are received-&gt;new Request_n+1.

Now there is chance that drm_dp_mst_hpd_irq() will fire new down
request in the tx queue when the down reply is incomplete. Source is
restricted to generate interveleaved message transactions so we should
avoid it.

Also, while assembling partial reply packets, reading out DPCD DOWN_REP
Sideband MSG buffer + clearing DOWN_REP_MSG_RDY flag should be
wrapped up as a complete operation for reading out a reply packet.
Kicking off a new request before clearing DOWN_REP_MSG_RDY flag might
be risky. e.g. If the reply of the new request has overwritten the
DPRX DOWN_REP Sideband MSG buffer before source writing one to clear
DOWN_REP_MSG_RDY flag, source then unintentionally flushes the reply
for the new request. Should handle the up request in the same way.

[How]
Separete drm_dp_mst_hpd_irq() into 2 steps. After acking the MST IRQ
event, driver calls drm_dp_mst_hpd_irq_send_new_request() and might
trigger drm_dp_mst_kick_tx() only when there is no on going message
transaction.

Changes since v1:
* Reworked on review comments received
-&gt; Adjust the fix to let driver explicitly kick off new down request
when mst irq event is handled and acked
-&gt; Adjust the commit message

Changes since v2:
* Adjust the commit message
* Adjust the naming of the divided 2 functions and add a new input
  parameter "ack".
* Adjust code flow as per review comments.

Changes since v3:
* Update the function description of drm_dp_mst_hpd_irq_handle_event

Changes since v4:
* Change ack of drm_dp_mst_hpd_irq_handle_event() to be an array align
  the size of esi[]

Signed-off-by: Wayne Lin &lt;Wayne.Lin@amd.com&gt;
Reviewed-by: Lyude Paul &lt;lyude@redhat.com&gt;
Acked-by: Jani Nikula &lt;jani.nikula@intel.com&gt;
Cc: stable@vger.kernel.org
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
Signed-off-by: Mario Limonciello &lt;mario.limonciello@amd.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
commit 72f1de49ffb90b29748284f27f1d6b829ab1de95 upstream.

[Why]
The sequence for collecting down_reply from source perspective should
be:

Request_n-&gt;repeat (get partial reply of Request_n-&gt;clear message ready
flag to ack DPRX that the message is received) till all partial
replies for Request_n are received-&gt;new Request_n+1.

Now there is chance that drm_dp_mst_hpd_irq() will fire new down
request in the tx queue when the down reply is incomplete. Source is
restricted to generate interveleaved message transactions so we should
avoid it.

Also, while assembling partial reply packets, reading out DPCD DOWN_REP
Sideband MSG buffer + clearing DOWN_REP_MSG_RDY flag should be
wrapped up as a complete operation for reading out a reply packet.
Kicking off a new request before clearing DOWN_REP_MSG_RDY flag might
be risky. e.g. If the reply of the new request has overwritten the
DPRX DOWN_REP Sideband MSG buffer before source writing one to clear
DOWN_REP_MSG_RDY flag, source then unintentionally flushes the reply
for the new request. Should handle the up request in the same way.

[How]
Separete drm_dp_mst_hpd_irq() into 2 steps. After acking the MST IRQ
event, driver calls drm_dp_mst_hpd_irq_send_new_request() and might
trigger drm_dp_mst_kick_tx() only when there is no on going message
transaction.

Changes since v1:
* Reworked on review comments received
-&gt; Adjust the fix to let driver explicitly kick off new down request
when mst irq event is handled and acked
-&gt; Adjust the commit message

Changes since v2:
* Adjust the commit message
* Adjust the naming of the divided 2 functions and add a new input
  parameter "ack".
* Adjust code flow as per review comments.

Changes since v3:
* Update the function description of drm_dp_mst_hpd_irq_handle_event

Changes since v4:
* Change ack of drm_dp_mst_hpd_irq_handle_event() to be an array align
  the size of esi[]

Signed-off-by: Wayne Lin &lt;Wayne.Lin@amd.com&gt;
Reviewed-by: Lyude Paul &lt;lyude@redhat.com&gt;
Acked-by: Jani Nikula &lt;jani.nikula@intel.com&gt;
Cc: stable@vger.kernel.org
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
Signed-off-by: Mario Limonciello &lt;mario.limonciello@amd.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/dsc: fix DP_DSC_MAX_BPP_DELTA_* macro values</title>
<updated>2023-05-17T09:53:59+00:00</updated>
<author>
<name>Jani Nikula</name>
<email>jani.nikula@intel.com</email>
</author>
<published>2023-04-06T13:46:15+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=18ecffd03626ba57c4c899e0b7953479b463372d'/>
<id>18ecffd03626ba57c4c899e0b7953479b463372d</id>
<content type='text'>
commit 0d68683838f2850dd8ff31f1121e05bfb7a2def0 upstream.

The macro values just don't match the specs. Fix them.

Fixes: 1482ec00be4a ("drm: Add missing DP DSC extended capability definitions.")
Cc: Vinod Govindapillai &lt;vinod.govindapillai@intel.com&gt;
Cc: Stanislav Lisovskiy &lt;stanislav.lisovskiy@intel.com&gt;
Signed-off-by: Jani Nikula &lt;jani.nikula@intel.com&gt;
Reviewed-by: Ankit Nautiyal &lt;ankit.k.nautiyal@intel.com&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20230406134615.1422509-2-jani.nikula@intel.com
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
commit 0d68683838f2850dd8ff31f1121e05bfb7a2def0 upstream.

The macro values just don't match the specs. Fix them.

Fixes: 1482ec00be4a ("drm: Add missing DP DSC extended capability definitions.")
Cc: Vinod Govindapillai &lt;vinod.govindapillai@intel.com&gt;
Cc: Stanislav Lisovskiy &lt;stanislav.lisovskiy@intel.com&gt;
Signed-off-by: Jani Nikula &lt;jani.nikula@intel.com&gt;
Reviewed-by: Ankit Nautiyal &lt;ankit.k.nautiyal@intel.com&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20230406134615.1422509-2-jani.nikula@intel.com
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/dsc: fix drm_edp_dsc_sink_output_bpp() DPCD high byte usage</title>
<updated>2023-05-17T09:53:57+00:00</updated>
<author>
<name>Jani Nikula</name>
<email>jani.nikula@intel.com</email>
</author>
<published>2023-04-06T13:46:14+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=98643c9910575bd3a63ac8c587565cc7f3fc329b'/>
<id>98643c9910575bd3a63ac8c587565cc7f3fc329b</id>
<content type='text'>
[ Upstream commit 13525645e2246ebc8a21bd656248d86022a6ee8f ]

The operator precedence between &lt;&lt; and &amp; is wrong, leading to the high
byte being completely ignored. For example, with the 6.4 format, 32
becomes 0 and 24 becomes 8. Fix it, and remove the slightly confusing
and unnecessary DP_DSC_MAX_BITS_PER_PIXEL_HI_SHIFT macro while at it.

Fixes: 0575650077ea ("drm/dp: DRM DP helper/macros to get DP sink DSC parameters")
Cc: Stanislav Lisovskiy &lt;stanislav.lisovskiy@intel.com&gt;
Cc: Manasi Navare &lt;navaremanasi@google.com&gt;
Cc: Anusha Srivatsa &lt;anusha.srivatsa@intel.com&gt;
Cc: &lt;stable@vger.kernel.org&gt; # v5.0+
Signed-off-by: Jani Nikula &lt;jani.nikula@intel.com&gt;
Reviewed-by: Ankit Nautiyal &lt;ankit.k.nautiyal@intel.com&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20230406134615.1422509-1-jani.nikula@intel.com
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
[ Upstream commit 13525645e2246ebc8a21bd656248d86022a6ee8f ]

The operator precedence between &lt;&lt; and &amp; is wrong, leading to the high
byte being completely ignored. For example, with the 6.4 format, 32
becomes 0 and 24 becomes 8. Fix it, and remove the slightly confusing
and unnecessary DP_DSC_MAX_BITS_PER_PIXEL_HI_SHIFT macro while at it.

Fixes: 0575650077ea ("drm/dp: DRM DP helper/macros to get DP sink DSC parameters")
Cc: Stanislav Lisovskiy &lt;stanislav.lisovskiy@intel.com&gt;
Cc: Manasi Navare &lt;navaremanasi@google.com&gt;
Cc: Anusha Srivatsa &lt;anusha.srivatsa@intel.com&gt;
Cc: &lt;stable@vger.kernel.org&gt; # v5.0+
Signed-off-by: Jani Nikula &lt;jani.nikula@intel.com&gt;
Reviewed-by: Ankit Nautiyal &lt;ankit.k.nautiyal@intel.com&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20230406134615.1422509-1-jani.nikula@intel.com
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>drm: Add missing DP DSC extended capability definitions.</title>
<updated>2023-05-17T09:53:57+00:00</updated>
<author>
<name>Stanislav Lisovskiy</name>
<email>stanislav.lisovskiy@intel.com</email>
</author>
<published>2022-11-01T09:42:17+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=f95a60099dfd8e728ecc700a714c8cd5ae1c923b'/>
<id>f95a60099dfd8e728ecc700a714c8cd5ae1c923b</id>
<content type='text'>
[ Upstream commit 1482ec00be4a3634aeffbcc799791a723df69339 ]

Adding DP DSC register definitions, we might need for further
DSC implementation, supporting MST and DP branch pass-through mode.

v2: - Fixed checkpatch comment warning
v3: - Removed function which is not yet used(Jani Nikula)

Reviewed-by: Vinod Govindapillai &lt;vinod.govindapillai@intel.com&gt;
Acked-by: Maarten Lankhorst &lt;maarten.lankhorst@linux.intel.com&gt;
Signed-off-by: Stanislav Lisovskiy &lt;stanislav.lisovskiy@intel.com&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20221101094222.22091-2-stanislav.lisovskiy@intel.com
Stable-dep-of: 13525645e224 ("drm/dsc: fix drm_edp_dsc_sink_output_bpp() DPCD high byte usage")
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
[ Upstream commit 1482ec00be4a3634aeffbcc799791a723df69339 ]

Adding DP DSC register definitions, we might need for further
DSC implementation, supporting MST and DP branch pass-through mode.

v2: - Fixed checkpatch comment warning
v3: - Removed function which is not yet used(Jani Nikula)

Reviewed-by: Vinod Govindapillai &lt;vinod.govindapillai@intel.com&gt;
Acked-by: Maarten Lankhorst &lt;maarten.lankhorst@linux.intel.com&gt;
Signed-off-by: Stanislav Lisovskiy &lt;stanislav.lisovskiy@intel.com&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20221101094222.22091-2-stanislav.lisovskiy@intel.com
Stable-dep-of: 13525645e224 ("drm/dsc: fix drm_edp_dsc_sink_output_bpp() DPCD high byte usage")
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/display/dp_mst: Handle old/new payload states in drm_dp_remove_payload()</title>
<updated>2023-04-13T14:55:37+00:00</updated>
<author>
<name>Imre Deak</name>
<email>imre.deak@intel.com</email>
</author>
<published>2023-02-06T11:48:54+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=0c64d72fd3f21ac9d0da186809394d9593090ce7'/>
<id>0c64d72fd3f21ac9d0da186809394d9593090ce7</id>
<content type='text'>
commit e761cc20946a0094df71cb31a565a6a0d03bd8be upstream.

Atm, drm_dp_remove_payload() uses the same payload state to both get the
vc_start_slot required for the payload removal DPCD message and to
deduct time_slots from vc_start_slot of all payloads after the one being
removed.

The above isn't always correct, as vc_start_slot must be the up-to-date
version contained in the new payload state, but time_slots must be the
one used when the payload was previously added, contained in the old
payload state. The new payload's time_slots can change vs. the old one
if the current atomic commit changes the corresponding mode.

This patch let's drivers pass the old and new payload states to
drm_dp_remove_payload(), but keeps these the same for now in all drivers
not to change the behavior. A follow-up i915 patch will pass in that
driver the correct old and new states to the function.

Cc: Lyude Paul &lt;lyude@redhat.com&gt;
Cc: Ville Syrjälä &lt;ville.syrjala@linux.intel.com&gt;
Cc: Ben Skeggs &lt;bskeggs@redhat.com&gt;
Cc: Karol Herbst &lt;kherbst@redhat.com&gt;
Cc: Harry Wentland &lt;harry.wentland@amd.com&gt;
Cc: Alex Deucher &lt;alexander.deucher@amd.com&gt;
Cc: Wayne Lin &lt;Wayne.Lin@amd.com&gt;
Cc: stable@vger.kernel.org # 6.1
Cc: dri-devel@lists.freedesktop.org
Reviewed-by: Ville Syrjälä &lt;ville.syrjala@linux.intel.com&gt;
Reviewed-by: Lyude Paul &lt;lyude@redhat.com&gt;
Acked-by: Lyude Paul &lt;lyude@redhat.com&gt;
Acked-by: Daniel Vetter &lt;daniel@ffwll.ch&gt;
Acked-by: Wayne Lin &lt;wayne.lin@amd.com&gt;
Acked-by: Jani Nikula &lt;jani.nikula@intel.com&gt;
Signed-off-by: Imre Deak &lt;imre.deak@intel.com&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20230206114856.2665066-2-imre.deak@intel.com
Hand modified for missing 8c7d980da9ba3eb67a1b40fd4b33bcf49397084b
Signed-off-by: Mario Limonciello &lt;mario.limonciello@amd.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
commit e761cc20946a0094df71cb31a565a6a0d03bd8be upstream.

Atm, drm_dp_remove_payload() uses the same payload state to both get the
vc_start_slot required for the payload removal DPCD message and to
deduct time_slots from vc_start_slot of all payloads after the one being
removed.

The above isn't always correct, as vc_start_slot must be the up-to-date
version contained in the new payload state, but time_slots must be the
one used when the payload was previously added, contained in the old
payload state. The new payload's time_slots can change vs. the old one
if the current atomic commit changes the corresponding mode.

This patch let's drivers pass the old and new payload states to
drm_dp_remove_payload(), but keeps these the same for now in all drivers
not to change the behavior. A follow-up i915 patch will pass in that
driver the correct old and new states to the function.

Cc: Lyude Paul &lt;lyude@redhat.com&gt;
Cc: Ville Syrjälä &lt;ville.syrjala@linux.intel.com&gt;
Cc: Ben Skeggs &lt;bskeggs@redhat.com&gt;
Cc: Karol Herbst &lt;kherbst@redhat.com&gt;
Cc: Harry Wentland &lt;harry.wentland@amd.com&gt;
Cc: Alex Deucher &lt;alexander.deucher@amd.com&gt;
Cc: Wayne Lin &lt;Wayne.Lin@amd.com&gt;
Cc: stable@vger.kernel.org # 6.1
Cc: dri-devel@lists.freedesktop.org
Reviewed-by: Ville Syrjälä &lt;ville.syrjala@linux.intel.com&gt;
Reviewed-by: Lyude Paul &lt;lyude@redhat.com&gt;
Acked-by: Lyude Paul &lt;lyude@redhat.com&gt;
Acked-by: Daniel Vetter &lt;daniel@ffwll.ch&gt;
Acked-by: Wayne Lin &lt;wayne.lin@amd.com&gt;
Acked-by: Jani Nikula &lt;jani.nikula@intel.com&gt;
Signed-off-by: Imre Deak &lt;imre.deak@intel.com&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20230206114856.2665066-2-imre.deak@intel.com
Hand modified for missing 8c7d980da9ba3eb67a1b40fd4b33bcf49397084b
Signed-off-by: Mario Limonciello &lt;mario.limonciello@amd.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/display/dp_mst: Add drm_atomic_get_old_mst_topology_state()</title>
<updated>2023-03-11T12:55:42+00:00</updated>
<author>
<name>Imre Deak</name>
<email>imre.deak@intel.com</email>
</author>
<published>2023-02-06T11:48:55+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=6130b22fb677430af8fe4a2ac4fbf2f5b8572d12'/>
<id>6130b22fb677430af8fe4a2ac4fbf2f5b8572d12</id>
<content type='text'>
commit 9ffdb67af0ee625ae127711845532f670cc6a4e7 upstream.

Add a function to get the old MST topology state, required by a
follow-up i915 patch.

While at it clarify the code comment of
drm_atomic_get_new_mst_topology_state() and add _new prefix
to the new state pointer to remind about its difference from the old
state.

v2: Use old_/new_ prefixes for the state pointers. (Ville)

Cc: Lyude Paul &lt;lyude@redhat.com&gt;
Cc: Ville Syrjälä &lt;ville.syrjala@linux.intel.com&gt;
Cc: stable@vger.kernel.org # 6.1
Cc: dri-devel@lists.freedesktop.org
Reviewed-by: Ville Syrjälä &lt;ville.syrjala@linux.intel.com&gt;
Reviewed-by: Lyude Paul &lt;lyude@redhat.com&gt;
Acked-by: Lyude Paul &lt;lyude@redhat.com&gt;
Acked-by: Daniel Vetter &lt;daniel@ffwll.ch&gt;
Acked-by: Wayne Lin &lt;wayne.lin@amd.com&gt;
Acked-by: Jani Nikula &lt;jani.nikula@intel.com&gt;
Signed-off-by: Imre Deak &lt;imre.deak@intel.com&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20230206114856.2665066-3-imre.deak@intel.com
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
commit 9ffdb67af0ee625ae127711845532f670cc6a4e7 upstream.

Add a function to get the old MST topology state, required by a
follow-up i915 patch.

While at it clarify the code comment of
drm_atomic_get_new_mst_topology_state() and add _new prefix
to the new state pointer to remind about its difference from the old
state.

v2: Use old_/new_ prefixes for the state pointers. (Ville)

Cc: Lyude Paul &lt;lyude@redhat.com&gt;
Cc: Ville Syrjälä &lt;ville.syrjala@linux.intel.com&gt;
Cc: stable@vger.kernel.org # 6.1
Cc: dri-devel@lists.freedesktop.org
Reviewed-by: Ville Syrjälä &lt;ville.syrjala@linux.intel.com&gt;
Reviewed-by: Lyude Paul &lt;lyude@redhat.com&gt;
Acked-by: Lyude Paul &lt;lyude@redhat.com&gt;
Acked-by: Daniel Vetter &lt;daniel@ffwll.ch&gt;
Acked-by: Wayne Lin &lt;wayne.lin@amd.com&gt;
Acked-by: Jani Nikula &lt;jani.nikula@intel.com&gt;
Signed-off-by: Imre Deak &lt;imre.deak@intel.com&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20230206114856.2665066-3-imre.deak@intel.com
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge tag 'amd-drm-next-6.1-2022-09-08' of https://gitlab.freedesktop.org/agd5f/linux into drm-next</title>
<updated>2022-09-12T09:17:41+00:00</updated>
<author>
<name>Dave Airlie</name>
<email>airlied@redhat.com</email>
</author>
<published>2022-09-12T09:17:40+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=47519d8224babc9dee489ea96dfeac726fe544cc'/>
<id>47519d8224babc9dee489ea96dfeac726fe544cc</id>
<content type='text'>
amd-drm-next-6.1-2022-09-08:

amdgpu:
- Mode2 reset for RDNA2
- Lots of new DC documentation
- Add documentation about different asic families
- DSC improvements
- Aldebaran fixes
- Misc spelling and grammar fixes
- GFXOFF stats support for vangogh
- DC frame size fixes
- NBIO 7.7 updates
- DCN 3.2 updates
- DCN 3.1.4 Updates
- SMU 13.x updates
- Misc bug fixes
- Rework DC register offset handling
- GC 11.x updates
- PSP 13.x updates
- SDMA 6.x updates
- GMC 11.x updates
- SR-IOV updates
- PSP fixes for TA unloading
- DSC passthrough support
- Misc code cleanups

amdkfd:
- ISA fixes for some GC 10.3 IPs
- Misc code cleanups

radeon:
- Delayed work flush fix
- Use time_after for some jiffies calculations

drm:
- DSC passthrough aux support

Signed-off-by: Dave Airlie &lt;airlied@redhat.com&gt;
From: Alex Deucher &lt;alexander.deucher@amd.com&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20220908155202.57862-1-alexander.deucher@amd.com
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
amd-drm-next-6.1-2022-09-08:

amdgpu:
- Mode2 reset for RDNA2
- Lots of new DC documentation
- Add documentation about different asic families
- DSC improvements
- Aldebaran fixes
- Misc spelling and grammar fixes
- GFXOFF stats support for vangogh
- DC frame size fixes
- NBIO 7.7 updates
- DCN 3.2 updates
- DCN 3.1.4 Updates
- SMU 13.x updates
- Misc bug fixes
- Rework DC register offset handling
- GC 11.x updates
- PSP 13.x updates
- SDMA 6.x updates
- GMC 11.x updates
- SR-IOV updates
- PSP fixes for TA unloading
- DSC passthrough support
- Misc code cleanups

amdkfd:
- ISA fixes for some GC 10.3 IPs
- Misc code cleanups

radeon:
- Delayed work flush fix
- Use time_after for some jiffies calculations

drm:
- DSC passthrough aux support

Signed-off-by: Dave Airlie &lt;airlied@redhat.com&gt;
From: Alex Deucher &lt;alexander.deucher@amd.com&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20220908155202.57862-1-alexander.deucher@amd.com
</pre>
</div>
</content>
</entry>
<entry>
<title>video/hdmi: Add audio_infoframe packing for DP</title>
<updated>2022-09-04T12:31:59+00:00</updated>
<author>
<name>Markus Schneider-Pargmann</name>
<email>msp@baylibre.com</email>
</author>
<published>2022-09-01T04:41:41+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=f89aa0b6db18dea3c3c8ef266cc6c9fd8dff2d72'/>
<id>f89aa0b6db18dea3c3c8ef266cc6c9fd8dff2d72</id>
<content type='text'>
Similar to HDMI, DP uses audio infoframes as well which are structured
very similar to the HDMI ones.

This patch adds a helper function to pack the HDMI audio infoframe for
DP, called hdmi_audio_infoframe_pack_for_dp().
hdmi_audio_infoframe_pack_only() is split into two parts. One of them
packs the payload only and can be used for HDMI and DP.

Also constify the frame parameter in hdmi_audio_infoframe_check() as
it is passed to hdmi_audio_infoframe_check_only() which expects a const.

Signed-off-by: Markus Schneider-Pargmann &lt;msp@baylibre.com&gt;
Signed-off-by: Guillaume Ranquet &lt;granquet@baylibre.com&gt;
Signed-off-by: Bo-Chen Chen &lt;rex-bc.chen@mediatek.com&gt;
Reviewed-by: AngeloGioacchino Del Regno &lt;angelogioacchino.delregno@collabora.com&gt;
Signed-off-by: Dmitry Osipenko &lt;dmitry.osipenko@collabora.com&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20220901044149.16782-3-rex-bc.chen@mediatek.com
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Similar to HDMI, DP uses audio infoframes as well which are structured
very similar to the HDMI ones.

This patch adds a helper function to pack the HDMI audio infoframe for
DP, called hdmi_audio_infoframe_pack_for_dp().
hdmi_audio_infoframe_pack_only() is split into two parts. One of them
packs the payload only and can be used for HDMI and DP.

Also constify the frame parameter in hdmi_audio_infoframe_check() as
it is passed to hdmi_audio_infoframe_check_only() which expects a const.

Signed-off-by: Markus Schneider-Pargmann &lt;msp@baylibre.com&gt;
Signed-off-by: Guillaume Ranquet &lt;granquet@baylibre.com&gt;
Signed-off-by: Bo-Chen Chen &lt;rex-bc.chen@mediatek.com&gt;
Reviewed-by: AngeloGioacchino Del Regno &lt;angelogioacchino.delregno@collabora.com&gt;
Signed-off-by: Dmitry Osipenko &lt;dmitry.osipenko@collabora.com&gt;
Link: https://patchwork.freedesktop.org/patch/msgid/20220901044149.16782-3-rex-bc.chen@mediatek.com
</pre>
</div>
</content>
</entry>
</feed>
