Commit graph

1,447,411 commits

Author SHA1 Message Date
Thomas Weißschuh
285cae57a5 kunit: Extend kconfig help text for KUNIT_UML_PCI
Checkpatch.pl expects at least 4 lines of help text.

Extend the help text to make checkpatch.pl happy.

Link: https://lore.kernel.org/r/20250916-kunit-pci-kconfig-v1-1-6d1369f06f2a@linutronix.de
Fixes: 031cdd3bc3 ("kunit: Enable PCI on UML without triggering WARN()")
Suggested-by: Shuah Khan <skhan@linuxfoundation.org>
Link: https://lore.kernel.org/lkml/3dc95227-2be9-48a0-bdea-3f283d9b2a38@linuxfoundation.org/
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2025-09-16 08:27:09 -06:00
Kaibo Ma
c652dc4419 rust: kunit: allow cfg on tests
The `kunit_test` proc macro only checks for the `test` attribute
immediately preceding a `fn`. If the function is disabled via a `cfg`,
the generated code would result in a compile error referencing a
non-existent function [1].

This collects attributes and specifically cherry-picks `cfg` attributes
to be duplicated inside KUnit wrapper functions such that a test function
disabled via `cfg` compiles and is marked as skipped in KUnit correctly.

Link: https://lore.kernel.org/r/20250916021259.115578-1-ent3rm4n@gmail.com
Link: https://lore.kernel.org/rust-for-linux/CANiq72==48=69hYiDo1321pCzgn_n1_jg=ez5UYXX91c+g5JVQ@mail.gmail.com/ [1]
Closes: https://github.com/Rust-for-Linux/linux/issues/1185
Suggested-by: Miguel Ojeda <ojeda@kernel.org>
Suggested-by: David Gow <davidgow@google.com>
Signed-off-by: Kaibo Ma <ent3rm4n@gmail.com>
Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2025-09-16 08:26:56 -06:00
Mathieu Dubois-Briand
32d4cedd24 MAINTAINERS: Add entry on MAX7360 driver
Add myself as maintainer of Maxim MAX7360 driver and device-tree bindings.

Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Link: https://lore.kernel.org/r/20250824-mdb-max7360-support-v14-10-435cfda2b1ea@bootlin.com
Signed-off-by: Lee Jones <lee@kernel.org>
2025-09-16 15:24:48 +01:00
Mathieu Dubois-Briand
229c15e9a6 input: misc: Add support for MAX7360 rotary
Add driver for Maxim Integrated MAX7360 rotary encoder controller,
supporting a single rotary switch.

Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Link: https://lore.kernel.org/r/20250824-mdb-max7360-support-v14-9-435cfda2b1ea@bootlin.com
Signed-off-by: Lee Jones <lee@kernel.org>
2025-09-16 15:24:48 +01:00
Mathieu Dubois-Briand
fa6a23f1c5 input: keyboard: Add support for MAX7360 keypad
Add driver for Maxim Integrated MAX7360 keypad controller, providing
support for up to 64 keys, with a matrix of 8 columns and 8 rows.

Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Link: https://lore.kernel.org/r/20250824-mdb-max7360-support-v14-8-435cfda2b1ea@bootlin.com
Signed-off-by: Lee Jones <lee@kernel.org>
2025-09-16 15:24:48 +01:00
Mathieu Dubois-Briand
b1a7433d85 gpio: max7360: Add MAX7360 gpio support
Add driver for Maxim Integrated MAX7360 GPIO/GPO controller.

Two sets of GPIOs are provided by the device:
- Up to 8 GPIOs, shared with the PWM and rotary encoder functionalities.
  These GPIOs also provide interrupts on input changes.
- Up to 6 GPOs, on unused keypad columns pins.

Co-developed-by: Kamel Bouhara <kamel.bouhara@bootlin.com>
Signed-off-by: Kamel Bouhara <kamel.bouhara@bootlin.com>
Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Link: https://lore.kernel.org/r/20250824-mdb-max7360-support-v14-7-435cfda2b1ea@bootlin.com
Signed-off-by: Lee Jones <lee@kernel.org>
2025-09-16 15:24:48 +01:00
Mathieu Dubois-Briand
0627b71fa5 gpio: regmap: Allow to provide init_valid_mask callback
Allows to populate the gpio_regmap_config structure with
init_valid_mask() callback to set on the final gpio_chip structure.

Reviewed-by: Michael Walle <mwalle@kernel.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Link: https://lore.kernel.org/r/20250824-mdb-max7360-support-v14-6-435cfda2b1ea@bootlin.com
Signed-off-by: Lee Jones <lee@kernel.org>
2025-09-16 15:24:48 +01:00
Mathieu Dubois-Briand
553b75d4bf gpio: regmap: Allow to allocate regmap-irq device
GPIO controller often have support for IRQ: allow to easily allocate
both gpio-regmap and regmap-irq in one operation.

Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Link: https://lore.kernel.org/r/20250824-mdb-max7360-support-v14-5-435cfda2b1ea@bootlin.com
Signed-off-by: Lee Jones <lee@kernel.org>
2025-09-16 15:24:48 +01:00
Kamel Bouhara
d93a75d94b pwm: max7360: Add MAX7360 PWM support
Add driver for Maxim Integrated MAX7360 PWM controller, supporting up to
8 independent PWM outputs.

Signed-off-by: Kamel Bouhara <kamel.bouhara@bootlin.com>
Co-developed-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Uwe Kleine-König <ukleinek@kernel.org>
Link: https://lore.kernel.org/r/20250824-mdb-max7360-support-v14-4-435cfda2b1ea@bootlin.com
Signed-off-by: Lee Jones <lee@kernel.org>
2025-09-16 15:24:48 +01:00
Mathieu Dubois-Briand
b4b993c0e3 pinctrl: Add MAX7360 pinctrl driver
Add driver for Maxim Integrated MAX7360 pinctrl on the PORT pins. Pins
can be used either for GPIO, PWM or rotary encoder functionalities.

Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20250824-mdb-max7360-support-v14-3-435cfda2b1ea@bootlin.com
Signed-off-by: Lee Jones <lee@kernel.org>
2025-09-16 15:24:48 +01:00
Kamel Bouhara
a22ddeef55 mfd: Add max7360 support
Add core driver to support MAX7360 i2c chip, multi function device
with keypad, GPIO, PWM, GPO and rotary encoder submodules.

Signed-off-by: Kamel Bouhara <kamel.bouhara@bootlin.com>
Co-developed-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20250824-mdb-max7360-support-v14-2-435cfda2b1ea@bootlin.com
Signed-off-by: Lee Jones <lee@kernel.org>
2025-09-16 15:24:48 +01:00
Mathieu Dubois-Briand
aee814458f dt-bindings: mfd: gpio: Add MAX7360
Add device tree bindings for Maxim Integrated MAX7360 device with
support for keypad, rotary, gpios and pwm functionalities.

Reviewed-by: "Rob Herring (Arm)" <robh@kernel.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Link: https://lore.kernel.org/r/20250824-mdb-max7360-support-v14-1-435cfda2b1ea@bootlin.com
Signed-off-by: Lee Jones <lee@kernel.org>
2025-09-16 15:24:48 +01:00
Shuo Zhao
943b764cb6 docs/zh_CN: Add security ipe Chinese translation
Translate .../security/ipe.rst into Chinese.

Update the translation through commit ac6731870e
("documentation: add IPE documentation")

Signed-off-by: Shuo Zhao <zhaoshuo@cqsoftware.com.cn>
Reviewed-by: Yanteng Si <siyanteng@cqsoftware.com.cn>
Signed-off-by: Alex Shi <alexs@kernel.org>
2025-09-16 22:03:23 +08:00
Sun yuxi
a513d96280 Docs/zh_CN: Translate generic-hdlc.rst to Simplified Chinese
translate the "generic-hdlc.rst" into Simplified Chinese.

Update the translation through commit 16128ad8f9
("docs: networking: convert generic-hdlc.txt to ReST")

Signed-off-by: Wang Yaxin <wang.yaxin@zte.com.cn>
Signed-off-by: Sun yuxi <sun.yuxi@zte.com.cn>
Reviewed-by: xu xin <xu.xin16@zte.com.cn>
Signed-off-by: Alex Shi <alexs@kernel.org>
2025-09-16 21:52:54 +08:00
Wang Yaxin
478bb02b07 Docs/zh_CN: Translate skbuff.rst to Simplified Chinese
translate the "skbuff.rst" into Simplified Chinese.

Update the translation through commit 9facd94114
("skbuff: render the checksum comment to documentation")

Signed-off-by: Wang Yaxin <wang.yaxin@zte.com.cn>
Signed-off-by: Sun yuxi <sun.yuxi@zte.com.cn>
Reviewed-by: xu xin <xu.xin16@zte.com.cn>
Signed-off-by: Alex Shi <alexs@kernel.org>
2025-09-16 21:52:54 +08:00
Sun yuxi
733b8bdfe7 Docs/zh_CN: Translate mptcp-sysctl.rst to Simplified Chinese
translate the "mptcp-sysctl.rst" into Simplified Chinese.

Update the translation through commit fa3ee9dd80
("mptcp: sysctl: add available_path_managers")

Signed-off-by: Sun yuxi <sun.yuxi@zte.com.cn>
Reviewed-by: xu xin <xu.xin16@zte.com.cn>
Signed-off-by: Alex Shi <alexs@kernel.org>
2025-09-16 21:52:54 +08:00
Qi Xi
288dac9fb6 drm: bridge: cdns-mhdp8546: Fix missing mutex unlock on error path
Add missing mutex unlock before returning from the error path in
cdns_mhdp_atomic_enable().

Fixes: 935a92a1c4 ("drm: bridge: cdns-mhdp8546: Fix possible null pointer dereference")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Qi Xi <xiqi2@huawei.com>
Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20250904034447.665427-1-xiqi2@huawei.com
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
2025-09-16 15:42:35 +02:00
Ming Yu
d463bb1405 rtc: Add Nuvoton NCT6694 RTC support
This driver supports RTC functionality for NCT6694 MFD device
based on USB interface.

Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Ming Yu <a0282524688@gmail.com>
Link: https://lore.kernel.org/r/20250912091952.1169369-8-a0282524688@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
2025-09-16 14:41:58 +01:00
Ming Yu
197e779d29 hwmon: Add Nuvoton NCT6694 HWMON support
This driver supports Hardware monitor functionality for NCT6694 MFD
device based on USB interface.

Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Ming Yu <a0282524688@gmail.com>
Link: https://lore.kernel.org/r/20250912091952.1169369-7-a0282524688@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
2025-09-16 14:41:57 +01:00
Ming Yu
f9d737a7d8 watchdog: Add Nuvoton NCT6694 WDT support
This driver supports Watchdog timer functionality for NCT6694 MFD
device based on USB interface.

Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Ming Yu <a0282524688@gmail.com>
Link: https://lore.kernel.org/r/20250912091952.1169369-6-a0282524688@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
2025-09-16 14:41:57 +01:00
Ming Yu
8a204684d0 can: Add Nuvoton NCT6694 CANFD support
This driver supports Socket CANFD functionality for NCT6694 MFD
device based on USB interface.

Reviewed-by: Marc Kleine-Budde <mkl@pengutronix.de>
Reviewed-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Signed-off-by: Ming Yu <a0282524688@gmail.com>
Link: https://lore.kernel.org/r/20250912091952.1169369-5-a0282524688@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
2025-09-16 14:41:57 +01:00
Ming Yu
c5cf27dbae i2c: Add Nuvoton NCT6694 I2C support
This driver supports I2C adapter functionality for NCT6694 MFD
device based on USB interface.

Each I2C controller uses the default baudrate of 100kHz, which
can be overridden via module parameters.

Acked-by: Andi Shyti <andi.shyti@kernel.org>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Ming Yu <a0282524688@gmail.com>
Link: https://lore.kernel.org/r/20250912091952.1169369-4-a0282524688@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
2025-09-16 14:41:57 +01:00
Ming Yu
611a995e8a gpio: Add Nuvoton NCT6694 GPIO support
This driver supports GPIO and IRQ functionality for NCT6694 MFD
device based on USB interface.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Ming Yu <a0282524688@gmail.com>
Link: https://lore.kernel.org/r/20250912091952.1169369-3-a0282524688@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
2025-09-16 14:41:57 +01:00
Ming Yu
51dad33ede mfd: Add core driver for Nuvoton NCT6694
The Nuvoton NCT6694 provides an USB interface to the host to
access its features.

Sub-devices can use the USB functions nct6694_read_msg() and
nct6694_write_msg() to issue a command. They can also request
interrupt that will be called when the USB device receives its
interrupt pipe.

Signed-off-by: Ming Yu <a0282524688@gmail.com>
Link: https://lore.kernel.org/r/20250912091952.1169369-2-a0282524688@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
2025-09-16 14:41:57 +01:00
Alex Elder
8b84d712ad
regulator: spacemit: support SpacemiT P1 regulators
Add support for the regulators found in the SpacemiT P1 PMIC.  This
PMIC provides 6 buck converters and 12 LDO regulators.

The PMIC is implemented as a multi-function device.  These regulators
are probed based on this driver being named in a MFD cell in the simple
MFD I2C driver.

Signed-off-by: Alex Elder <elder@riscstar.com>
Link: https://patch.msgid.link/20250825172057.163883-4-elder@riscstar.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2025-09-16 14:34:44 +01:00
Alexey Klimov
88d0d17192
ASoC: dt-bindings: add bindings for pm4125 audio codec
The audio codec IC is found on Qualcomm PM4125/PM2250 PMIC.
It has TX and RX soundwire slave devices hence two files are added.

Signed-off-by: Alexey Klimov <alexey.klimov@linaro.org>
Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@oss.qualcomm.com>
Tested-by: Srinivas Kandagatla <srinivas.kandagatla@oss.qualcomm.com>
Link: https://patch.msgid.link/20250915-pm4125_audio_codec_v1-v4-1-b247b64eec52@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2025-09-16 14:33:25 +01:00
Alexey Klimov
b9cb410d48
MAINTAINERS: add Qualcomm PM4125 audio codec to drivers list
Since new audio codec driver is added the get_maintainers script
should catch the new files.

Signed-off-by: Alexey Klimov <alexey.klimov@linaro.org>
Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@oss.qualcomm.com>
Tested-by: Srinivas Kandagatla <srinivas.kandagatla@oss.qualcomm.com>
Link: https://patch.msgid.link/20250915-pm4125_audio_codec_v1-v4-4-b247b64eec52@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2025-09-16 14:33:24 +01:00
Alexey Klimov
8ad5294849
ASoC: codecs: add new pm4125 audio codec driver
The audio codec is found in Qualcomm PM2250/PM4125 PMICs and is used on
platforms like Qualcomm QCM2290. It has soundwire interface and
corresponding RX and TX slave devices.

It has only two input channels: HPH left and right. The line output (LO)
is linked to HPHL so the hardware has some limitations regarding concurrent
playback via HPH and LO for instance.

The codec driver also uses WCD MBCH framework. The MBHC functionality is
implemented in a minimalistic way to enable IRQs and avoid different
issues with IRQs.

Co-developed-by: Srinivas Kandagatla <srinivas.kandagatla@oss.qualcomm.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@oss.qualcomm.com>
Signed-off-by: Alexey Klimov <alexey.klimov@linaro.org>
Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@oss.qualcomm.com>
Tested-by: Srinivas Kandagatla <srinivas.kandagatla@oss.qualcomm.com>
Link: https://patch.msgid.link/20250915-pm4125_audio_codec_v1-v4-3-b247b64eec52@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2025-09-16 14:33:23 +01:00
Wang Longjie
e63b0d0e04 Docs/zh_CN: Translate inotify.rst to Simplified Chinese
translate the "inotify.rst" into Simplified Chinese.

Update to commit de389cf08d47("docs: filesystems: convert inotify.txt to
ReST")

Signed-off-by: Wang Longjie <wang.longjie1@zte.com.cn>
Signed-off-by: Shao Mingyin <shao.mingyin@zte.com.cn>
Signed-off-by: Alex Shi <alexs@kernel.org>
2025-09-16 21:32:22 +08:00
Wang Longjie
9a3d2d98f6 Docs/zh_CN: Translate dnotify.rst to Simplified Chinese
translate the "dnotify.rst" into Simplified Chinese.

Update to commit b31763cff488("docs: filesystems: convert dnotify.txt to
ReST")

Signed-off-by: Wang Longjie <wang.longjie1@zte.com.cn>
Signed-off-by: Shao Mingyin <shao.mingyin@zte.com.cn>
Signed-off-by: Alex Shi <alexs@kernel.org>
2025-09-16 21:32:22 +08:00
Shao Mingyin
1c8e194113 Docs/zh_CN: Translate gfs2-glocks.rst to Simplified Chinese
translate the "gfs2-glocks.rst" into Simplified Chinese.

Update to commit 713f8834389f("gfs2: Get rid of emote_ok
checks")

Signed-off-by: Shao Mingyin <shao.mingyin@zte.com.cn>
Signed-off-by: yang tao <yang.tao172@zte.com.cn>
Signed-off-by: Alex Shi <alexs@kernel.org>
2025-09-16 21:32:22 +08:00
Shao Mingyin
a1cce3f467 Docs/zh_CN: Translate gfs2-uevents.rst to Simplified Chinese
translate the "gfs2-uevents.rst" into Simplified Chinese.

Update to commit 5b7ac27a6e2c("docs: filesystems: convert
gfs2-uevents.txt to ReST")

Signed-off-by: Shao Mingyin <shao.mingyin@zte.com.cn>
Signed-off-by: yang tao <yang.tao172@zte.com.cn>
Signed-off-by: Alex Shi <alexs@kernel.org>
2025-09-16 21:32:22 +08:00
Shao Mingyin
8c6c6e9564 Docs/zh_CN: Translate gfs2.rst to Simplified Chinese
translate the "gfs2.rst" into Simplified Chinese.

Update to commit d9593868cd58("Documentation: Update
filesystems/gfs2.rst")

Signed-off-by: Shao Mingyin <shao.mingyin@zte.com.cn>
Signed-off-by: yang tao <yang.tao172@zte.com.cn>
Signed-off-by: Alex Shi <alexs@kernel.org>
2025-09-16 21:32:22 +08:00
Shao Mingyin
a46d47ae30 Docs/zh_CN: Translate ubifs-authentication.rst to Simplified Chinese
translate the "ubifs-authentication.rst" into Simplified Chinese.

Update to commit d56b699d76d1("Documentation: Fix typos")

Signed-off-by: Shao Mingyin <shao.mingyin@zte.com.cn>
Signed-off-by: yang tao <yang.tao172@zte.com.cn>
Signed-off-by: Alex Shi <alexs@kernel.org>
2025-09-16 21:32:21 +08:00
Shao Mingyin
0e6d01c464 Docs/zh_CN: Translate ubifs.rst to Simplified Chinese
translate the "ubifs.rst" into Simplified Chinese.

Update to commit 5f5cae9b0e81("Documentation: ubifs: Fix
compression idiom")

Signed-off-by: Shao Mingyin <shao.mingyin@zte.com.cn>
Signed-off-by: yang tao <yang.tao172@zte.com.cn>
Signed-off-by: Alex Shi <alexs@kernel.org>
2025-09-16 21:32:21 +08:00
Luca Ceresoli
0885e76c26 drm/imx: parallel-display: put the bridge returned by drm_bridge_get_next_bridge()
The bridge returned by drm_bridge_get_next_bridge() is refcounted. Put it
when done. We need to ensure it is not put before either next_bridge or
next_bridge_state is in use, thus for simplicity use a cleanup action.

Reviewed-by: Maxime Ripard <mripard@kernel.org>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Link: https://lore.kernel.org/r/20250801-drm-bridge-alloc-getput-drm_bridge_get_next_bridge-v2-9-888912b0be13@bootlin.com
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
2025-09-16 15:22:42 +02:00
Luca Ceresoli
da550b5a6b drm/bridge: put the bridge returned by drm_bridge_get_next_bridge()
The bridge returned by drm_bridge_get_next_bridge() is refcounted. Put it
when done. We need to ensure it is not put before either next_bridge or
next_bridge_state is in use, thus for simplicity use a cleanup action.

Reviewed-by: Maxime Ripard <mripard@kernel.org>
Link: https://lore.kernel.org/r/20250801-drm-bridge-alloc-getput-drm_bridge_get_next_bridge-v2-8-888912b0be13@bootlin.com
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
2025-09-16 15:22:41 +02:00
Luca Ceresoli
61aa4f7a60 drm/bridge: get the bridge returned by drm_bridge_get_next_bridge()
drm_bridge_get_next_bridge() returns a bridge pointer that the
caller could hold for a long time. Increment the refcount of the returned
bridge and document it must be put by the caller.

Reviewed-by: Maxime Ripard <mripard@kernel.org>
Link: https://lore.kernel.org/r/20250801-drm-bridge-alloc-getput-drm_bridge_get_next_bridge-v2-7-888912b0be13@bootlin.com
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
2025-09-16 15:22:41 +02:00
Mark Brown
b28a55db45
Miscellaneous fixes and clean-ups
Merge series from Santhosh Kumar K <s-k6@ti.com>:

This series introduces some small but important fixes and cleanups in
the Cadence QSPI Controller.

Tested on TI's AM62A SK and AM62P SK:
Logs: https://gist.github.com/santhosh21/0d25767b58d9a1d9624f2c502dd8f36b
2025-09-16 14:17:33 +01:00
Luca Ceresoli
8e1e17416c drm/omap: use drm_for_each_bridge_in_chain_from()
Use drm_for_each_bridge_in_chain_from _scoped() instead of an open-coded
loop based on drm_bridge_get_next_bridge() to ensure the bridge being
looped on is refcounted and simplify the driver code.

Reviewed-by: Maxime Ripard <mripard@kernel.org>
Link: https://lore.kernel.org/r/20250808-drm-bridge-alloc-getput-for_each_bridge-v2-9-edb6ee81edf1@bootlin.com
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
2025-09-16 15:02:54 +02:00
Luca Ceresoli
78f4eec620 drm/bridge: add drm_for_each_bridge_in_chain_from()
Add variant of drm_for_each_bridge_in_chain_scoped() that iterates on the
encoder bridge from a given bridge until the end of the chain.

Reviewed-by: Maxime Ripard <mripard@kernel.org>
Link: https://lore.kernel.org/r/20250808-drm-bridge-alloc-getput-for_each_bridge-v2-8-edb6ee81edf1@bootlin.com
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
2025-09-16 15:02:50 +02:00
Luca Ceresoli
2f08387a44 drm/bridge: remove drm_for_each_bridge_in_chain()
All users have been replaced by drm_for_each_bridge_in_chain_scoped().

Reviewed-by: Maxime Ripard <mripard@kernel.org>
Link: https://lore.kernel.org/r/20250808-drm-bridge-alloc-getput-for_each_bridge-v2-7-edb6ee81edf1@bootlin.com
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
2025-09-16 15:02:48 +02:00
Luca Ceresoli
bd57048e45 drm/bridge: use drm_for_each_bridge_in_chain_scoped()
Use drm_for_each_bridge_in_chain_scoped() instead of
drm_for_each_bridge_in_chain() to ensure the bridge being looped on is
refcounted.

Reviewed-by: Maxime Ripard <mripard@kernel.org>
Link: https://lore.kernel.org/r/20250808-drm-bridge-alloc-getput-for_each_bridge-v2-6-edb6ee81edf1@bootlin.com
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
2025-09-16 15:02:45 +02:00
Luca Ceresoli
a5821ed052 drm/atomic: use drm_for_each_bridge_in_chain_scoped()
Use drm_for_each_bridge_in_chain_scoped() instead of
drm_for_each_bridge_in_chain() to ensure the bridge being looped on is
refcounted.

Reviewed-by: Maxime Ripard <mripard@kernel.org>
Link: https://lore.kernel.org/r/20250808-drm-bridge-alloc-getput-for_each_bridge-v2-5-edb6ee81edf1@bootlin.com
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
2025-09-16 15:02:41 +02:00
Luca Ceresoli
d5c5b1de3e drm/display: bridge-connector: use drm_for_each_bridge_in_chain_scoped()
Use drm_for_each_bridge_in_chain_scoped() instead of
drm_for_each_bridge_in_chain() to ensure the bridge being looped on is
refcounted.

Reviewed-by: Maxime Ripard <mripard@kernel.org>
Link: https://lore.kernel.org/r/20250808-drm-bridge-alloc-getput-for_each_bridge-v2-4-edb6ee81edf1@bootlin.com
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
2025-09-16 15:02:14 +02:00
Luca Ceresoli
e46efc6a7d drm/bridge: add drm_for_each_bridge_in_chain_scoped()
drm_for_each_bridge_in_chain() iterates ofer the bridges in an encoder
chain without protecting the lifetime of the bridges using
drm_bridge_get/put(). This creates a risk window where the bridge could be
freed while iterating on it. Users of drm_for_each_bridge_in_chain() cannot
solve this reliably.

Add variant of drm_for_each_bridge_in_chain() that gets/puts the bridge
reference at the beginning/end of each iteration, and puts it if breaking
ot of the loop.

Note that this requires adding a new drm_bridge_get_next_bridge_and_put()
function because, unlike similar functions as __of_get_next_child(),
drm_bridge_get_next_bridge() gets the "next" pointer but does not put the
"prev" pointer. Unfortunately drm_bridge_get_next_bridge() cannot be
modified to put the "prev" pointer because some of its users rely on
this, such as drm_atomic_bridge_propagate_bus_flags().

Also deprecate drm_for_each_bridge_in_chain(), in preparation for removing
it after converting all users to the scoped version.

Reviewed-by: Maxime Ripard <mripard@kernel.org>
Link: https://lore.kernel.org/r/20250808-drm-bridge-alloc-getput-for_each_bridge-v2-3-edb6ee81edf1@bootlin.com
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
2025-09-16 15:02:13 +02:00
Luca Ceresoli
c92f59bac0 drm/display: bridge-connector: use scope-specific variable for the bridge pointer
Currently drm_bridge_connector_init() reuses the 'bridge' variable, first
as a loop variable in the long drm_for_each_bridge_in_chain() and then in
the HDMI-specific code as a shortcut to bridge_connector->bridge_cec.

We are about to remove the 'bridge' loop variable for
drm_for_each_bridge_in_chain() by moving to a scoped version of the same
macro, which implies removing the 'bridge' variable from the main function
scope. Additionally reusing the variable can make such long function less
readable.

Similarly to what commit 6f727c838ea8 ("drm/bridge-connector: Fix bridge in
drm_connector_hdmi_audio_init()") already did for the audio HDMI bridge,
use n local variable inside the scopes where it is needed as a
bridge_connector->bridge_hdmi_cec shortcut to make its scope clearer as
well as to allow removing the 'bridge' variable in an upcoming commit.

Reviewed-by: Maxime Ripard <mripard@kernel.org>
Link: https://lore.kernel.org/r/20250808-drm-bridge-alloc-getput-for_each_bridge-v2-1-edb6ee81edf1@bootlin.com
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
2025-09-16 15:02:07 +02:00
Mark Brown
41b5c85ba9
regulator: max77838: add max77838 regulator driver
Merge series from Ivaylo Ivanov <ivo.ivanov.ivanov1@gmail.com>:

This patchset adds support for the max77838 PMIC. It's used on the Galaxy
S7 lineup of phones, and provides regulators for the display.
2025-09-16 13:52:09 +01:00
Suren Baghdasaryan
f7381b9116 slab: mark slab->obj_exts allocation failures unconditionally
alloc_slab_obj_exts() should mark failed obj_exts vector allocations
independent on whether the vector is being allocated for a new or an
existing slab. Current implementation skips doing this for existing
slabs. Fix this by marking failed allocations unconditionally.

Fixes: 09c46563ff ("codetag: debug: introduce OBJEXTS_ALLOC_FAIL to mark failed slab_ext allocations")
Reported-by: Shakeel Butt <shakeel.butt@linux.dev>
Closes: https://lore.kernel.org/all/avhakjldsgczmq356gkwmvfilyvf7o6temvcmtt5lqd4fhp5rk@47gp2ropyixg/
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Cc: stable@vger.kernel.org # v6.10+
Acked-by: Shakeel Butt <shakeel.butt@linux.dev>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
2025-09-16 14:32:51 +02:00
Suren Baghdasaryan
4038016397 slab: prevent warnings when slab obj_exts vector allocation fails
When object extension vector allocation fails, we set slab->obj_exts to
OBJEXTS_ALLOC_FAIL to indicate the failure. Later, once the vector is
successfully allocated, we will use this flag to mark codetag references
stored in that vector as empty to avoid codetag warnings.

slab_obj_exts() used to retrieve the slab->obj_exts vector pointer checks
slab->obj_exts for being either NULL or a pointer with MEMCG_DATA_OBJEXTS
bit set. However it does not handle the case when slab->obj_exts equals
OBJEXTS_ALLOC_FAIL. Add the missing condition to avoid extra warning.

Fixes: 09c46563ff ("codetag: debug: introduce OBJEXTS_ALLOC_FAIL to mark failed slab_ext allocations")
Reported-by: Shakeel Butt <shakeel.butt@linux.dev>
Closes: https://lore.kernel.org/all/jftidhymri2af5u3xtcqry3cfu6aqzte3uzlznhlaylgrdztsi@5vpjnzpsemf5/
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Cc: stable@vger.kernel.org # v6.10+
Acked-by: Shakeel Butt <shakeel.butt@linux.dev>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
2025-09-16 14:32:51 +02:00