linux-stable.git/Documentation, branch v6.6.7

tee: optee: Fix supplicant based device enumeration

2023-12-13T17:45:11+00:00

[ Upstream commit 7269cba53d906cf257c139d3b3a53ad272176bca ]

Currently supplicant dependent optee device enumeration only registers
devices whenever tee-supplicant is invoked for the first time. But it
forgets to remove devices when tee-supplicant daemon stops running and
closes its context gracefully. This leads to following error for fTPM
driver during reboot/shutdown:

[   73.466791] tpm tpm0: ftpm_tee_tpm_op_send: SUBMIT_COMMAND invoke error: 0xffff3024

Fix this by adding an attribute for supplicant dependent devices so that
the user-space service can detect and detach supplicant devices before
closing the supplicant:

$ for dev in /sys/bus/tee/devices/*; do if [[ -f "$dev/need_supplicant" && -f "$dev/driver/unbind" ]]; \
      then echo $(basename "$dev") > $dev/driver/unbind; fi done

Reported-by: Jan Kiszka 
Closes: https://github.com/OP-TEE/optee_os/issues/6094
Fixes: 5f178bb71e3a ("optee: enable support for multi-stage bus enumeration")
Signed-off-by: Sumit Garg 
Reviewed-by: Ilias Apalodimas 
Acked-by: Jerome Forissier 
[jw: fixed up Date documentation]
Signed-off-by: Jens Wiklander 
Signed-off-by: Sasha Levin

dt-bindings: interrupt-controller: Allow #power-domain-cells

2023-12-13T17:45:09+00:00

[ Upstream commit c0a2755aced969e0125fd68ccd95269b28d8913a ]

MPM provides a single genpd. Allow #power-domain-cells = <0>.

Fixes: 54fc9851c0e0 ("dt-bindings: interrupt-controller: Add Qualcomm MPM support")
Acked-by: Shawn Guo 
Acked-by: Krzysztof Kozlowski 
Signed-off-by: Konrad Dybcio 
Link: https://lore.kernel.org/r/20231129-topic-mpmbindingspd-v2-1-acbe909ceee1@linaro.org
Signed-off-by: Rob Herring 
Signed-off-by: Sasha Levin

leds: class: Don't expose color sysfs entry

2023-12-08T07:52:15+00:00

commit 8f2244c9af245ff72185c0473827125ee6b2d1a5 upstream.

The commit c7d80059b086 ("leds: class: Store the color index in struct
led_classdev") introduced a new sysfs entry "color" that is commonly
created for the led classdev.  Unfortunately, this conflicts with the
"color" sysfs entry of already existing drivers such as Logitech HID
or System76 ACPI drivers.  The driver probe fails due to the conflict,
hence it leads to a severe regression with the missing keyboard, for
example.

This patch reverts partially the change in the commit above for
removing the led class color sysfs entries again for addressing the
regressions.  The newly introduced led_classdev.color field is kept as
it's already used by other driver.

Fixes: c7d80059b086 ("leds: class: Store the color index in struct led_classdev")
Reported-by: Johannes Penßel 
Closes: https://lore.kernel.org/r/b5646db3-acff-45aa-baef-df3f660486fb@gmail.com
Link: https://bugzilla.kernel.org/show_bug.cgi?id=218045
Link: https://bugzilla.kernel.org/show_bug.cgi?id=218155
Link: https://bugzilla.suse.com/show_bug.cgi?id=1217172
Signed-off-by: Takashi Iwai 
Reviewed-by: Hans de Goede 
Link: https://lore.kernel.org/r/20231121162359.9332-1-tiwai@suse.de
Signed-off-by: Lee Jones 
Signed-off-by: Greg Kroah-Hartman

dt-bindings: usb: microchip,usb5744: Add second supply

2023-12-03T06:33:08+00:00

commit d0c930b745cafde8e7d25d0356c648bca669556a upstream.

The USB5744 has two power supplies one for 3V3 and one for 1V2. Add the
second supply to the USB5744 DT binding.

Signed-off-by: Stefan Eichenberger 
Signed-off-by: Francesco Dolcini 
Acked-by: Conor Dooley 
Cc: stable 
Link: https://lore.kernel.org/r/20231113145921.30104-2-francesco@dolcini.it
Signed-off-by: Greg Kroah-Hartman

dt-bindings: timer: renesas,rz-mtu3: Fix overflow/underflow interrupt names

2023-11-28T17:20:02+00:00

commit b7a8f1f7a8a25e09aaefebb6251a77f44cda638b upstream.

As per R01UH0914EJ0130 Rev.1.30 HW manual the MTU3 overflow/underflow
interrupt names starts with 'tci' instead of 'tgi'.

Fix this documentation issue by replacing below overflow/underflow
interrupt names:
 - tgiv0->tciv0
 - tgiv1->tciv1
 - tgiu1->tciu1
 - tgiv2->tciv2
 - tgiu2->tciu2
 - tgiv3->tciv3
 - tgiv4->tciv4
 - tgiv6->tciv6
 - tgiv7->tciv7
 - tgiv8->tciv8
 - tgiu8->tciu8

Fixes: 0a9d6b54297e ("dt-bindings: timer: Document RZ/G2L MTU3a bindings")
Cc: stable@kernel.org
Signed-off-by: Biju Das 
Acked-by: Conor Dooley 
Reviewed-by: Geert Uytterhoeven 
Signed-off-by: Daniel Lezcano 
Link: https://lore.kernel.org/r/20230727081848.100834-2-biju.das.jz@bp.renesas.com
Signed-off-by: Greg Kroah-Hartman

dt-bindings: serial: fix regex pattern for matching serial node children

2023-11-28T17:19:48+00:00

[ Upstream commit 42851dfd4dbe38e34724a00063a9fad5cfc48dcd ]

The regular expression pattern for matching serial node children should
accept only nodes starting and ending with the set of words: bluetooth,
gnss, gps or mcu.  Add missing brackets to enforce such matching.

Fixes: 0c559bc8abfb ("dt-bindings: serial: restrict possible child node names")
Reported-by: Andreas Kemnade 
Closes: https://lore.kernel.org/all/20231004170021.36b32465@aktux/
Signed-off-by: Krzysztof Kozlowski 
Acked-by: Rob Herring 
Link: https://lore.kernel.org/r/20231005093247.128166-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Greg Kroah-Hartman 
Signed-off-by: Sasha Levin

i2c: i801: Add support for Intel Birch Stream SoC

2023-11-28T17:19:46+00:00

[ Upstream commit 8c56f9ef25a33e51f09a448d25cf863b61c9658d ]

Add SMBus PCI ID on Intel Birch Stream SoC.

Signed-off-by: Jarkko Nikula 
Reviewed-by: Andi Shyti 
Reviewed-by: Jean Delvare 
Signed-off-by: Wolfram Sang 
Signed-off-by: Sasha Levin

dt-bindings: phy: qcom,snps-eusb2-repeater: Add magic tuning overrides

2023-11-28T17:19:45+00:00

[ Upstream commit c20b59b2996c89c4f072c3312e6210528a298330 ]

The EUSB2 repeater requires some alterations to its init sequence,
depending on board design.

Add support for making the necessary changes to that sequence to make USB
functional on SM8550-based Xperia 1 V.

They all have lackluster description due to lack of information.

Signed-off-by: Konrad Dybcio 
Acked-by: Rob Herring 
Link: https://lore.kernel.org/r/20230830-topic-eusb2_override-v2-1-7d8c893d93f6@linaro.org
Signed-off-by: Vinod Koul 
Signed-off-by: Sasha Levin

smp,csd: Throw an error if a CSD lock is stuck for too long

2023-11-28T17:19:36+00:00

[ Upstream commit 94b3f0b5af2c7af69e3d6e0cdd9b0ea535f22186 ]

The CSD lock seems to get stuck in 2 "modes". When it gets stuck
temporarily, it usually gets released in a few seconds, and sometimes
up to one or two minutes.

If the CSD lock stays stuck for more than several minutes, it never
seems to get unstuck, and gradually more and more things in the system
end up also getting stuck.

In the latter case, we should just give up, so the system can dump out
a little more information about what went wrong, and, with panic_on_oops
and a kdump kernel loaded, dump a whole bunch more information about what
might have gone wrong.  In addition, there is an smp.panic_on_ipistall
kernel boot parameter that by default retains the old behavior, but when
set enables the panic after the CSD lock has been stuck for more than
the specified number of milliseconds, as in 300,000 for five minutes.

[ paulmck: Apply Imran Khan feedback. ]
[ paulmck: Apply Leonardo Bras feedback. ]

Link: https://lore.kernel.org/lkml/bc7cc8b0-f587-4451-8bcd-0daae627bcc7@paulmck-laptop/
Signed-off-by: Rik van Riel 
Signed-off-by: Paul E. McKenney 
Reviewed-by: Imran Khan 
Reviewed-by: Leonardo Bras 
Cc: Peter Zijlstra 
Cc: Valentin Schneider 
Cc: Juergen Gross 
Cc: Jonathan Corbet 
Cc: Randy Dunlap 
Signed-off-by: Sasha Levin

dt-bindings: mfd: mt6397: Split out compatible for MediaTek MT6366 PMIC

2023-11-20T10:59:24+00:00

[ Upstream commit 61fdd1f1d2c183ec256527d16d75e75c3582af82 ]

The MT6366 PMIC is mostly, but not fully, compatible with MT6358. It has
a different set of regulators. Specifically, it lacks the camera related
VCAM* LDOs and VLDO28, but has additional VM18, VMDDR, and VSRAM_CORE LDOs.

The PMICs contain a chip ID register that can be used to detect which
exact model is preset, so it is possible to share a common base
compatible string.

Add a separate compatible for the MT6366 PMIC, with a fallback to the
MT6358 PMIC.

Fixes: 49be16305587 ("dt-bindings: mfd: Add compatible for the MediaTek MT6366 PMIC")
Signed-off-by: Chen-Yu Tsai 
Acked-by: Krzysztof Kozlowski 
Reviewed-by: AngeloGioacchino Del Regno 
Link: https://lore.kernel.org/r/20230928085537.3246669-2-wenst@chromium.org
Signed-off-by: Lee Jones 
Signed-off-by: Sasha Levin