platform/kernel/linux-starfive.git
15 months agocounter: rz-mtu3-cnt: Unlock on error in rz_mtu3_count_ceiling_write()
Dan Carpenter [Thu, 20 Apr 2023 15:02:11 +0000 (18:02 +0300)]
counter: rz-mtu3-cnt: Unlock on error in rz_mtu3_count_ceiling_write()

These error paths need to call mutex_unlock(&priv->lock) before
returning.  The lock is taken in rz_mtu3_lock_if_counter_is_valid().

Fixes: 25d21447d896 ("counter: Add Renesas RZ/G2L MTU3a counter driver")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Acked-by: William Breathitt Gray <william.gray@linaro.org>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/7b535d6b-6031-493a-84f6-82842089e637@kili.mountain
15 months agodt-bindings: mfd: dlg,da9063: Document voltage monitoring
Benjamin Bara [Wed, 5 Apr 2023 17:14:36 +0000 (19:14 +0200)]
dt-bindings: mfd: dlg,da9063: Document voltage monitoring

Document that the da9063 only provides under- *and* over-voltage
monitoring in one, and therefore requires both to be configured with the
same severity and value. Add an example for clarification.

Signed-off-by: Benjamin Bara <benjamin.bara@skidata.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230403-da9063-disable-unused-v3-3-cc4dc698864c@skidata.com
15 months agodt-bindings: mfd: stm32: Remove unnecessary blank lines
Patrick Delaunay [Mon, 17 Apr 2023 16:14:06 +0000 (18:14 +0200)]
dt-bindings: mfd: stm32: Remove unnecessary blank lines

Remove double blank line.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230417181342.v2.1.I483a676579cc7e3ac07e1db649091553743fecc8@changeid
15 months agodt-bindings: mfd: qcom,spmi-pmic: Use generic ADC node name in examples
Marijn Suijten [Mon, 10 Apr 2023 20:29:16 +0000 (22:29 +0200)]
dt-bindings: mfd: qcom,spmi-pmic: Use generic ADC node name in examples

Update the examples to reflect a future requirement for the generic
`channel` node name on ADC channel nodes, while conveying the board name
of the channel in a label instead.

Signed-off-by: Marijn Suijten <marijn.suijten@somainline.org>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230410202917.247666-5-marijn.suijten@somainline.org
15 months agodt-bindings: mfd: syscon: Add nuvoton,ma35d1-sys compatible
Jacky Huang [Tue, 28 Mar 2023 02:19:05 +0000 (02:19 +0000)]
dt-bindings: mfd: syscon: Add nuvoton,ma35d1-sys compatible

Add Nuvoton ma35d1 system registers compatible.

Signed-off-by: Jacky Huang <ychuang3@nuvoton.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230328021912.177301-6-ychuang570808@gmail.com
15 months agoMAINTAINERS: Add entries for Renesas RZ/G2L MTU3a counter driver
Biju Das [Thu, 30 Mar 2023 11:16:31 +0000 (12:16 +0100)]
MAINTAINERS: Add entries for Renesas RZ/G2L MTU3a counter driver

Add the MAINTAINERS entries for the Renesas RZ/G2L MTU3a counter
driver.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230330111632.169434-6-biju.das.jz@bp.renesas.com
15 months agocounter: Add Renesas RZ/G2L MTU3a counter driver
Biju Das [Thu, 30 Mar 2023 11:16:30 +0000 (12:16 +0100)]
counter: Add Renesas RZ/G2L MTU3a counter driver

Add RZ/G2L MTU3a counter driver. This IP supports the following
phase counting modes on MTU1 and MTU2 channels

1) 16-bit phase counting modes on MTU1 and MTU2 channels.
2) 32-bit phase counting mode by cascading MTU1 and MTU2 channels.

This patch adds 3 counter value channels.
count0: 16-bit phase counter value channel on MTU1
count1: 16-bit phase counter value channel on MTU2
count2: 32-bit phase counter value channel by cascading
                MTU1 and MTU2 channels.

The external input phase clock pin for the counter value channels
are as follows:
count0: "MTCLKA-MTCLKB"
count1: "MTCLKA-MTCLKB" or "MTCLKC-MTCLKD"
count2: "MTCLKA-MTCLKB" or "MTCLKC-MTCLKD"

Use the sysfs variable "external_input_phase_clock_select" to select the
external input phase clock pin and "cascade_counts_enable" to enable/
disable cascading of channels.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: William Breathitt Gray <william.gray@linaro.org>
Acked-by: William Breathitt Gray <william.gray@linaro.org>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230330111632.169434-5-biju.das.jz@bp.renesas.com
15 months agoDocumentation: ABI: sysfs-bus-counter: add cascade_counts_enable and external_input_p...
Biju Das [Thu, 30 Mar 2023 11:16:29 +0000 (12:16 +0100)]
Documentation: ABI: sysfs-bus-counter: add cascade_counts_enable and external_input_phase_clock_select

This commit adds cascade_counts_enable and external_input_phase_
clock_select items to counter ABI file.
(e.g. for Renesas MTU3 hardware used for phase counting).

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: William Breathitt Gray <william.gray@linaro.org>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230330111632.169434-4-biju.das.jz@bp.renesas.com
15 months agomfd: Add Renesas RZ/G2L MTU3a core driver
Biju Das [Thu, 30 Mar 2023 11:16:28 +0000 (12:16 +0100)]
mfd: Add Renesas RZ/G2L MTU3a core driver

The RZ/G2L multi-function timer pulse unit 3 (MTU3a) is embedded in
the Renesas RZ/G2L family SoCs. It consists of eight 16-bit timer
channels and one 32-bit timer channel. It supports the following
functions
 - Counter
 - Timer
 - PWM

The 8/16/32 bit registers are mixed in each channel.

Add MTU3a core driver for RZ/G2L SoC. The core driver shares the
clk and channel register access for the other child devices like
Counter, PWM and Clock event.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230330111632.169434-3-biju.das.jz@bp.renesas.com
15 months agodt-bindings: timer: Document RZ/G2L MTU3a bindings
Biju Das [Thu, 30 Mar 2023 11:16:27 +0000 (12:16 +0100)]
dt-bindings: timer: Document RZ/G2L MTU3a bindings

The RZ/G2L multi-function timer pulse unit 3 (MTU3a) is embedded in
the Renesas RZ/G2L family SoC's. It consists of eight 16-bit timer
channels and one 32-bit timer channel. It supports the following
functions
 - Counter
 - Timer
 - PWM

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230330111632.169434-2-biju.das.jz@bp.renesas.com
15 months agomfd: rsmu_i2c: Convert to i2c's .probe_new() again
Uwe Kleine-König [Fri, 31 Mar 2023 07:03:44 +0000 (09:03 +0200)]
mfd: rsmu_i2c: Convert to i2c's .probe_new() again

This commit reapplies commit 601e6d48ee35 ("mfd: rsmu_i2c: Convert to
i2c's .probe_new()") which was accidently reverted by commit
1b3b1d6c27cc ("mfd: rsmu: Support 32-bit address space").

Without this change the driver fails to build in combination with commit
03c835f498b5 ("i2c: Switch .probe() to not take an id parameter") which
is contained in v6.3-rc2.

Fixes: 1b3b1d6c27cc ("mfd: rsmu: Support 32-bit address space")
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230331070344.czphnnmvu2ojzo5l@pengutronix.de
15 months agomfd: intel-lpss: Add Intel Meteor Lake PCH-S LPSS PCI IDs
Jarkko Nikula [Thu, 30 Mar 2023 13:26:18 +0000 (16:26 +0300)]
mfd: intel-lpss: Add Intel Meteor Lake PCH-S LPSS PCI IDs

Add Intel Meteor Lake PCH-S also called as Meteor Point-S LPSS PCI IDs.

Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230330132618.4108665-1-jarkko.nikula@linux.intel.com
15 months agomfd: dln2: Fix memory leak in dln2_probe()
Qiang Ning [Thu, 30 Mar 2023 02:43:53 +0000 (10:43 +0800)]
mfd: dln2: Fix memory leak in dln2_probe()

When dln2_setup_rx_urbs() in dln2_probe() fails, error out_free forgets
to call usb_put_dev() to decrease the refcount of dln2->usb_dev.

Fix this by adding usb_put_dev() in the error handling code of
dln2_probe().

Signed-off-by: Qiang Ning <qning0106@126.com>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230330024353.4503-1-qning0106@126.com
15 months agomfd: axp20x: Fix axp288 writable-ranges
Hans de Goede [Wed, 29 Mar 2023 20:55:44 +0000 (22:55 +0200)]
mfd: axp20x: Fix axp288 writable-ranges

Register AXP288_POWER_REASON is writable and needs to be written
to reset the reset- / power-on-reason bits.

Add it to the axp288 writable-ranges so that the extcon-axp288
driver can properly clear the reset- / power-on-reason bits.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230329205544.1051393-1-hdegoede@redhat.com
15 months agodt-bindings: mfd: x-powers,axp152: Simplify disallowing properties
Krzysztof Kozlowski [Sat, 25 Mar 2023 11:43:53 +0000 (12:43 +0100)]
dt-bindings: mfd: x-powers,axp152: Simplify disallowing properties

The syntax to disallow x-powers,drive-vbus-en,
x-powers,self-working-mode and x-powers,master-mode for certain variants
can be made simpler.  Also this produces much nicer warning message when
the condition hits wrong DTS.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Tested-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230325114353.50293-1-krzysztof.kozlowski@linaro.org
15 months agomfd: rsmu: Support 32-bit address space
Min Li [Mon, 27 Mar 2023 18:39:53 +0000 (14:39 -0400)]
mfd: rsmu: Support 32-bit address space

We used to assume 0x2010xxxx address. Now that we need to access
0x2011xxxx address, we need to support read/write the whole 32-bit
address space.

Also defined RSMU_MAX_WRITE_COUNT and RSMU_MAX_READ_COUNT for readability

Signed-off-by: Min Li <min.li.xe@renesas.com>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/MW5PR03MB693295AF31ABCAF6AE52EE74A08B9@MW5PR03MB6932.namprd03.prod.outlook.com
15 months agodt-bindings: mfd: qcom,spmi-pmic: Add nvram function
Johan Hovold [Mon, 20 Mar 2023 13:57:10 +0000 (14:57 +0100)]
dt-bindings: mfd: qcom,spmi-pmic: Add nvram function

Add an 'nvram' pattern property and a reference to the corresponding
SDAM DT schema.

Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230320135710.1989-4-johan+linaro@kernel.org
15 months agomfd: arizona-spi: Add missing MODULE_DEVICE_TABLE
Charles Keepax [Thu, 23 Mar 2023 13:41:38 +0000 (13:41 +0000)]
mfd: arizona-spi: Add missing MODULE_DEVICE_TABLE

This patch adds missing MODULE_DEVICE_TABLE definition
which generates correct modalias for automatic loading
of this driver when it is built as a module.

Fixes: 3f65555c417c ("mfd: arizona: Split of_match table into I2C and SPI versions")
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230323134138.834369-1-ckeepax@opensource.cirrus.com
15 months agodt-bindings: mfd: Drop unneeded quotes in 'ref', 'id' and 'schema' entries
Rob Herring [Wed, 22 Mar 2023 17:35:18 +0000 (12:35 -0500)]
dt-bindings: mfd: Drop unneeded quotes in 'ref', 'id' and 'schema' entries

Cleanup bindings dropping unneeded quotes. Once all these are fixed,
checking for this can be enabled in yamllint.

Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230322173519.3971434-1-robh@kernel.org
15 months agomfd: ocelot-spi: Fix unsupported bulk read
Colin Foster [Wed, 22 Mar 2023 14:11:30 +0000 (07:11 -0700)]
mfd: ocelot-spi: Fix unsupported bulk read

Ocelot chips (VSC7511, VSC7512, VSC7513, VSC7514) don't support bulk read
operations over SPI.

Many SPI buses have hardware that can optimize consecutive reads.
Essentially an address is written to the chip, and if the SPI controller
continues to toggle the clock, subsequent register values are reported.
This can lead to significant optimizations, because the time between
"address is written to the chip" and "chip starts to report data" can often
take a fixed amount of time.

When support for Ocelot chips were added in commit f3e893626abe ("mfd:
ocelot: Add support for the vsc7512 chip via spi") it was believed that
this optimization was supported. However it is not.

Most register transactions with the Ocelot chips are not done in bulk, so
this bug could go unnoticed. The one scenario where bulk register
operations _are_ performed is when polling port statistics counters, which
was added in commit d87b1c08f38a ("net: mscc: ocelot: use bulk reads for
stats").

Things get slightly more complicated here...

A bug was introduced in commit d4c367650704 ("net: mscc: ocelot: keep
ocelot_stat_layout by reg address, not offset") that broke the optimization
of bulk reads. This means that when Ethernet support for the VSC7512 chip
was added in commit 3d7316ac81ac ("net: dsa: ocelot: add external ocelot
switch control") things were actually working "as expected".

The bulk read opmtimization was discovered, and fixed in commit
6acc72a43eac ("net: mscc: ocelot: fix stats region batching") and the
timing optimizations for SPI were noticed. A bulk read went from ~14ms to
~2ms. But this timing improvement came at the cost of every register
reading zero due the fact that bulk reads don't work.

The read timings increase back to 13-14ms, but that's a price worth paying
in order to receive valid data. This is verified in a DSA setup (cpsw-new
switch tied to port 0 on the VSC7512, after having been running overnight)

     Rx Octets: 16222055 # Counters from CPSW switch
     Tx Octets: 12034702
     Net Octets: 28256757
     p00_rx_octets: 12034702 # Counters from Ocelot switch
     p00_rx_frames_below_65_octets: 0
     p00_rx_frames_65_to_127_octets: 88188
     p00_rx_frames_128_to_255_octets: 13
     p00_rx_frames_256_to_511_octets: 0
     p00_rx_frames_512_to_1023_octets: 0
     p00_rx_frames_over_1526_octets: 3306
     p00_tx_octets: 16222055

Fixes: f3e893626abe ("mfd: ocelot: Add support for the vsc7512 chip via spi")
Signed-off-by: Colin Foster <colin.foster@in-advantage.com>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230322141130.2531256-1-colin.foster@in-advantage.com
15 months agomfd: omap-usb-tll: Remove unused usbtll_readb() function
Tom Rix [Wed, 22 Mar 2023 12:58:03 +0000 (08:58 -0400)]
mfd: omap-usb-tll: Remove unused usbtll_readb() function

Clang with W=1 reports:

  drivers/mfd/omap-usb-tll.c:128:18: error: unused function
    'usbtll_readb' [-Werror,-Wunused-function]
  static inline u8 usbtll_readb(void __iomem *base, u32 reg)
                 ^
This function is not used so remove it.

Signed-off-by: Tom Rix <trix@redhat.com>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230322125803.2570968-1-trix@redhat.com
15 months agomfd: twl-core: Remove unused add_child() and add_numbered_child() functions
Tom Rix [Wed, 22 Mar 2023 11:58:38 +0000 (07:58 -0400)]
mfd: twl-core: Remove unused add_child() and add_numbered_child() functions

Clang with W=1 reports:

  drivers/mfd/twl-core.c:654:30: error: unused function 'add_child' [-Werror,-Wunused-function]
  static inline struct device *add_child(unsigned mod_no, const char *name,
                               ^
add_numbered_child() and its only caller add_child() are not used, so remove them.

Signed-off-by: Tom Rix <trix@redhat.com>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230322115838.2569414-1-trix@redhat.com
15 months agodt-bindings: mfd: qcom,spmi-pmic: Add compatible for pmm8654au
Bartosz Golaszewski [Tue, 14 Mar 2023 18:30:33 +0000 (19:30 +0100)]
dt-bindings: mfd: qcom,spmi-pmic: Add compatible for pmm8654au

PMM8654au is the SPMI PMIC variant used on sa8775p-ride. Add a compatible
for it.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230314183043.619997-5-brgl@bgdev.pl
15 months agomfd: arizona-i2c: Add the missing device table IDs for OF
André Apitzsch [Sun, 19 Mar 2023 12:41:53 +0000 (13:41 +0100)]
mfd: arizona-i2c: Add the missing device table IDs for OF

This patch adds missing MODULE_DEVICE_TABLE definition which generates
correct modalias for automatic loading of this driver when it is built
as a module.

Signed-off-by: André Apitzsch <git@apitzsch.eu>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230319124153.35294-1-git@apitzsch.eu
15 months agodt-bindings: mfd: qcom,spmi-pmic: Add PM2250
Konrad Dybcio [Wed, 15 Mar 2023 18:38:19 +0000 (19:38 +0100)]
dt-bindings: mfd: qcom,spmi-pmic: Add PM2250

Add a compatible for PM2250, commonly found with QCM2290.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230315183819.3563704-1-konrad.dybcio@linaro.org
15 months agomfd: rsmu_spi: Remove unneeded casts of void *
Geert Uytterhoeven [Mon, 13 Mar 2023 10:58:33 +0000 (11:58 +0100)]
mfd: rsmu_spi: Remove unneeded casts of void *

There is no need to cast a "void *" to a different type of pointer.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/ae84c1751e79cb49ab584557f4ecd835a8493d7c.1678704562.git.geert+renesas@glider.be
15 months agomfd: atc260x-i2c: Drop of_match_ptr for ID table
Krzysztof Kozlowski [Sat, 11 Mar 2023 11:16:29 +0000 (12:16 +0100)]
mfd: atc260x-i2c: Drop of_match_ptr for ID table

The driver can match only via the DT table so the table should be always
used and the of_match_ptr does not have any sense (this also allows ACPI
matching via PRP0001, even though it might not be relevant here).

  drivers/mfd/atc260x-i2c.c:44:34: error: ‘atc260x_i2c_of_match’ defined but not used [-Werror=unused-const-variable=]

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230311111629.251830-2-krzysztof.kozlowski@linaro.org
15 months agomfd: atmel-smc: Mark OF related data as maybe unused
Krzysztof Kozlowski [Sat, 11 Mar 2023 11:16:28 +0000 (12:16 +0100)]
mfd: atmel-smc: Mark OF related data as maybe unused

The driver can be compile tested with !CONFIG_OF making certain data
unused:

  drivers/mfd/atmel-smc.c:326:34: error: ‘atmel_smc_ids’ defined but not used [-Werror=unused-const-variable=]

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230311111629.251830-1-krzysztof.kozlowski@linaro.org
15 months agomfd: various: Use of_property_read_bool() for boolean properties
Rob Herring [Fri, 10 Mar 2023 14:47:12 +0000 (08:47 -0600)]
mfd: various: Use of_property_read_bool() for boolean properties

It is preferred to use typed property access functions (i.e.
of_property_read_<type> functions) rather than low-level
of_get_property/of_find_property functions for reading properties.
Convert reading boolean properties to to of_property_read_bool().

Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230310144712.1543449-1-robh@kernel.org
15 months agomfd: various: Use of_property_present() for testing DT property presence
Rob Herring [Fri, 10 Mar 2023 14:47:12 +0000 (08:47 -0600)]
mfd: various: Use of_property_present() for testing DT property presence

It is preferred to use typed property access functions (i.e.
of_property_read_<type> functions) rather than low-level
of_get_property/of_find_property functions for reading properties. As
part of this, convert of_get_property/of_find_property calls to the
recently added of_property_present() helper when we just want to test
for presence of a property and nothing more.

Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230310144712.1543379-1-robh@kernel.org
15 months agomfd: da903x: Remove MODULE_LICENSE in non-modules
Nick Alcock [Wed, 8 Mar 2023 19:42:50 +0000 (19:42 +0000)]
mfd: da903x: Remove MODULE_LICENSE in non-modules

Since commit 8b41fc4454e ("kbuild: create modules.builtin without
Makefile.modbuiltin or tristate.conf"), MODULE_LICENSE declarations
are used to identify modules. As a consequence, uses of the macro
in non-modules will cause modprobe to misidentify their containing
object file as a module when it is not (false positives), and modprobe
might succeed rather than failing with a suitable error message.

So remove it in the files in this commit, none of which can be built as
modules.

Signed-off-by: Nick Alcock <nick.alcock@oracle.com>
Suggested-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230308194307.374789-1-nick.alcock@oracle.com
15 months agomfd: da9052: Remove MODULE_LICENSE in non-modules
Nick Alcock [Wed, 8 Mar 2023 19:42:51 +0000 (19:42 +0000)]
mfd: da9052: Remove MODULE_LICENSE in non-modules

Since commit 8b41fc4454e ("kbuild: create modules.builtin without
Makefile.modbuiltin or tristate.conf"), MODULE_LICENSE declarations
are used to identify modules. As a consequence, uses of the macro
in non-modules will cause modprobe to misidentify their containing
object file as a module when it is not (false positives), and modprobe
might succeed rather than failing with a suitable error message.

So remove it in the files in this commit, none of which can be built as
modules.

Signed-off-by: Nick Alcock <nick.alcock@oracle.com>
Suggested-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Lee Jones <lee@kernel.org>
15 months agomfd: da9052-i2c: Remove MODULE_LICENSE in non-modules
Nick Alcock [Wed, 8 Mar 2023 19:42:52 +0000 (19:42 +0000)]
mfd: da9052-i2c: Remove MODULE_LICENSE in non-modules

Since commit 8b41fc4454e ("kbuild: create modules.builtin without
Makefile.modbuiltin or tristate.conf"), MODULE_LICENSE declarations
are used to identify modules. As a consequence, uses of the macro
in non-modules will cause modprobe to misidentify their containing
object file as a module when it is not (false positives), and modprobe
might succeed rather than failing with a suitable error message.

So remove it in the files in this commit, none of which can be built as
modules.

Signed-off-by: Nick Alcock <nick.alcock@oracle.com>
Suggested-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Lee Jones <lee@kernel.org>
15 months agomfd: da9052-spi: Remove MODULE_LICENSE in non-modules
Nick Alcock [Wed, 8 Mar 2023 19:42:53 +0000 (19:42 +0000)]
mfd: da9052-spi: Remove MODULE_LICENSE in non-modules

Since commit 8b41fc4454e ("kbuild: create modules.builtin without
Makefile.modbuiltin or tristate.conf"), MODULE_LICENSE declarations
are used to identify modules. As a consequence, uses of the macro
in non-modules will cause modprobe to misidentify their containing
object file as a module when it is not (false positives), and modprobe
might succeed rather than failing with a suitable error message.

So remove it in the files in this commit, none of which can be built as
modules.

Signed-off-by: Nick Alcock <nick.alcock@oracle.com>
Suggested-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Lee Jones <lee@kernel.org>
15 months agomfd: da9055: Remove MODULE_LICENSE in non-modules
Nick Alcock [Wed, 8 Mar 2023 19:42:54 +0000 (19:42 +0000)]
mfd: da9055: Remove MODULE_LICENSE in non-modules

Since commit 8b41fc4454e ("kbuild: create modules.builtin without
Makefile.modbuiltin or tristate.conf"), MODULE_LICENSE declarations
are used to identify modules. As a consequence, uses of the macro
in non-modules will cause modprobe to misidentify their containing
object file as a module when it is not (false positives), and modprobe
might succeed rather than failing with a suitable error message.

So remove it in the files in this commit, none of which can be built as
modules.

Signed-off-by: Nick Alcock <nick.alcock@oracle.com>
Suggested-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Lee Jones <lee@kernel.org>
15 months agomfd: da9055-i2c: Remove MODULE_LICENSE in non-modules
Nick Alcock [Wed, 8 Mar 2023 19:42:55 +0000 (19:42 +0000)]
mfd: da9055-i2c: Remove MODULE_LICENSE in non-modules

Since commit 8b41fc4454e ("kbuild: create modules.builtin without
Makefile.modbuiltin or tristate.conf"), MODULE_LICENSE declarations
are used to identify modules. As a consequence, uses of the macro
in non-modules will cause modprobe to misidentify their containing
object file as a module when it is not (false positives), and modprobe
might succeed rather than failing with a suitable error message.

So remove it in the files in this commit, none of which can be built as
modules.

Signed-off-by: Nick Alcock <nick.alcock@oracle.com>
Suggested-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Lee Jones <lee@kernel.org>
15 months agomfd: stmpe-i2c: Remove MODULE_LICENSE in non-modules
Nick Alcock [Wed, 8 Mar 2023 19:42:56 +0000 (19:42 +0000)]
mfd: stmpe-i2c: Remove MODULE_LICENSE in non-modules

Since commit 8b41fc4454e ("kbuild: create modules.builtin without
Makefile.modbuiltin or tristate.conf"), MODULE_LICENSE declarations
are used to identify modules. As a consequence, uses of the macro
in non-modules will cause modprobe to misidentify their containing
object file as a module when it is not (false positives), and modprobe
might succeed rather than failing with a suitable error message.

So remove it in the files in this commit, none of which can be built as
modules.

Signed-off-by: Nick Alcock <nick.alcock@oracle.com>
Suggested-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Lee Jones <lee@kernel.org>
15 months agomfd: stmpe-spi: Remove MODULE_LICENSE in non-modules
Nick Alcock [Wed, 8 Mar 2023 19:42:57 +0000 (19:42 +0000)]
mfd: stmpe-spi: Remove MODULE_LICENSE in non-modules

Since commit 8b41fc4454e ("kbuild: create modules.builtin without
Makefile.modbuiltin or tristate.conf"), MODULE_LICENSE declarations
are used to identify modules. As a consequence, uses of the macro
in non-modules will cause modprobe to misidentify their containing
object file as a module when it is not (false positives), and modprobe
might succeed rather than failing with a suitable error message.

So remove it in the files in this commit, none of which can be built as
modules.

Signed-off-by: Nick Alcock <nick.alcock@oracle.com>
Suggested-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Lee Jones <lee@kernel.org>
15 months agomfd: 88pm860x: Remove MODULE_LICENSE in non-modules
Nick Alcock [Wed, 8 Mar 2023 19:42:58 +0000 (19:42 +0000)]
mfd: 88pm860x: Remove MODULE_LICENSE in non-modules

Since commit 8b41fc4454e ("kbuild: create modules.builtin without
Makefile.modbuiltin or tristate.conf"), MODULE_LICENSE declarations
are used to identify modules. As a consequence, uses of the macro
in non-modules will cause modprobe to misidentify their containing
object file as a module when it is not (false positives), and modprobe
might succeed rather than failing with a suitable error message.

So remove it in the files in this commit, none of which can be built as
modules.

Signed-off-by: Nick Alcock <nick.alcock@oracle.com>
Suggested-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Lee Jones <lee@kernel.org>
15 months agomfd: tc3589x: Remove MODULE_LICENSE in non-modules
Nick Alcock [Wed, 8 Mar 2023 19:43:00 +0000 (19:43 +0000)]
mfd: tc3589x: Remove MODULE_LICENSE in non-modules

Since commit 8b41fc4454e ("kbuild: create modules.builtin without
Makefile.modbuiltin or tristate.conf"), MODULE_LICENSE declarations
are used to identify modules. As a consequence, uses of the macro
in non-modules will cause modprobe to misidentify their containing
object file as a module when it is not (false positives), and modprobe
might succeed rather than failing with a suitable error message.

So remove it in the files in this commit, none of which can be built as
modules.

Signed-off-by: Nick Alcock <nick.alcock@oracle.com>
Suggested-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Lee Jones <lee@kernel.org>
15 months agomfd: ezx-pcap: Remove MODULE_LICENSE in non-modules
Nick Alcock [Wed, 8 Mar 2023 19:43:02 +0000 (19:43 +0000)]
mfd: ezx-pcap: Remove MODULE_LICENSE in non-modules

Since commit 8b41fc4454e ("kbuild: create modules.builtin without
Makefile.modbuiltin or tristate.conf"), MODULE_LICENSE declarations
are used to identify modules. As a consequence, uses of the macro
in non-modules will cause modprobe to misidentify their containing
object file as a module when it is not (false positives), and modprobe
might succeed rather than failing with a suitable error message.

So remove it in the files in this commit, none of which can be built as
modules.

Signed-off-by: Nick Alcock <nick.alcock@oracle.com>
Suggested-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Lee Jones <lee@kernel.org>
15 months agomfd: omap-usb-host: Remove MODULE_LICENSE in non-modules
Nick Alcock [Wed, 8 Mar 2023 19:43:04 +0000 (19:43 +0000)]
mfd: omap-usb-host: Remove MODULE_LICENSE in non-modules

Since commit 8b41fc4454e ("kbuild: create modules.builtin without
Makefile.modbuiltin or tristate.conf"), MODULE_LICENSE declarations
are used to identify modules. As a consequence, uses of the macro
in non-modules will cause modprobe to misidentify their containing
object file as a module when it is not (false positives), and modprobe
might succeed rather than failing with a suitable error message.

So remove it in the files in this commit, none of which can be built as
modules.

Signed-off-by: Nick Alcock <nick.alcock@oracle.com>
Suggested-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Lee Jones <lee@kernel.org>
15 months agomfd: omap-usb-tll: Remove MODULE_LICENSE in non-modules
Nick Alcock [Wed, 8 Mar 2023 19:43:05 +0000 (19:43 +0000)]
mfd: omap-usb-tll: Remove MODULE_LICENSE in non-modules

Since commit 8b41fc4454e ("kbuild: create modules.builtin without
Makefile.modbuiltin or tristate.conf"), MODULE_LICENSE declarations
are used to identify modules. As a consequence, uses of the macro
in non-modules will cause modprobe to misidentify their containing
object file as a module when it is not (false positives), and modprobe
might succeed rather than failing with a suitable error message.

So remove it in the files in this commit, none of which can be built as
modules.

Signed-off-by: Nick Alcock <nick.alcock@oracle.com>
Suggested-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Lee Jones <lee@kernel.org>
15 months agomfd: tps6586x: Remove MODULE_LICENSE in non-modules
Nick Alcock [Wed, 8 Mar 2023 19:43:01 +0000 (19:43 +0000)]
mfd: tps6586x: Remove MODULE_LICENSE in non-modules

Since commit 8b41fc4454e ("kbuild: create modules.builtin without
Makefile.modbuiltin or tristate.conf"), MODULE_LICENSE declarations
are used to identify modules. As a consequence, uses of the macro
in non-modules will cause modprobe to misidentify their containing
object file as a module when it is not (false positives), and modprobe
might succeed rather than failing with a suitable error message.

So remove it in the files in this commit, none of which can be built as
modules.

Signed-off-by: Nick Alcock <nick.alcock@oracle.com>
Suggested-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Lee Jones <lee@kernel.org>
15 months agomfd: lp8788: Remove MODULE_LICENSE in non-modules
Nick Alcock [Wed, 8 Mar 2023 19:43:03 +0000 (19:43 +0000)]
mfd: lp8788: Remove MODULE_LICENSE in non-modules

Since commit 8b41fc4454e ("kbuild: create modules.builtin without
Makefile.modbuiltin or tristate.conf"), MODULE_LICENSE declarations
are used to identify modules. As a consequence, uses of the macro
in non-modules will cause modprobe to misidentify their containing
object file as a module when it is not (false positives), and modprobe
might succeed rather than failing with a suitable error message.

So remove it in the files in this commit, none of which can be built as
modules.

Signed-off-by: Nick Alcock <nick.alcock@oracle.com>
Suggested-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Lee Jones <lee@kernel.org>
15 months agomfd: twl4030-audio: Remove MODULE_LICENSE in non-modules
Nick Alcock [Wed, 8 Mar 2023 19:43:06 +0000 (19:43 +0000)]
mfd: twl4030-audio: Remove MODULE_LICENSE in non-modules

Since commit 8b41fc4454e ("kbuild: create modules.builtin without
Makefile.modbuiltin or tristate.conf"), MODULE_LICENSE declarations
are used to identify modules. As a consequence, uses of the macro
in non-modules will cause modprobe to misidentify their containing
object file as a module when it is not (false positives), and modprobe
might succeed rather than failing with a suitable error message.

So remove it in the files in this commit, none of which can be built as
modules.

Signed-off-by: Nick Alcock <nick.alcock@oracle.com>
Suggested-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Lee Jones <lee@kernel.org>
15 months agomfd: twl6040: Remove MODULE_LICENSE in non-modules
Nick Alcock [Wed, 8 Mar 2023 19:43:07 +0000 (19:43 +0000)]
mfd: twl6040: Remove MODULE_LICENSE in non-modules

Since commit 8b41fc4454e ("kbuild: create modules.builtin without
Makefile.modbuiltin or tristate.conf"), MODULE_LICENSE declarations
are used to identify modules. As a consequence, uses of the macro
in non-modules will cause modprobe to misidentify their containing
object file as a module when it is not (false positives), and modprobe
might succeed rather than failing with a suitable error message.

So remove it in the files in this commit, none of which can be built as
modules.

Signed-off-by: Nick Alcock <nick.alcock@oracle.com>
Suggested-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Lee Jones <lee@kernel.org>
15 months agomfd: da9055: Do not cite as modular
Nick Alcock [Wed, 8 Mar 2023 19:42:59 +0000 (19:42 +0000)]
mfd: da9055: Do not cite as modular

This driver cannot be built as a module, so don't suggest otherwise
in Kconfig help.

Suggested-by: Lee Jones <lee@kernel.org>
Signed-off-by: Nick Alcock <nick.alcock@oracle.com>
Reviewed-by: Vincenzo Palazzo <vincenzopalazzodev@gmail.com>
Signed-off-by: Lee Jones <lee@kernel.org>
15 months agomfd: da9062: Remove IRQ requirement
Christoph Niedermaier [Thu, 9 Mar 2023 09:22:53 +0000 (10:22 +0100)]
mfd: da9062: Remove IRQ requirement

This patch removes the requirement for an IRQ, because for the core
functionality IRQ isn't needed. So this makes the DA9061/62 chip
usable for designs which haven't connected the IRQ pin.

Signed-off-by: Christoph Niedermaier <cniedermaier@dh-electronics.com>
Acked-by: Adam Ward <DLG-Adam.Ward.opensource@dm.renesas.com>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230309092254.56279-2-cniedermaier@dh-electronics.com
15 months agomfd: da9062: Use MFD_CELL_OF macro
Christoph Niedermaier [Thu, 9 Mar 2023 09:22:52 +0000 (10:22 +0100)]
mfd: da9062: Use MFD_CELL_OF macro

Use MFD_CELL_OF macro helper instead of plain struct properties, which makes
the code a bit shorter and to have commonly defined MFD cell attributes.

Signed-off-by: Christoph Niedermaier <cniedermaier@dh-electronics.com>
Acked-by: Adam Ward <DLG-Adam.Ward.opensource@dm.renesas.com>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230309092254.56279-1-cniedermaier@dh-electronics.com
15 months agodt-bindings: mfd: Add TI-Nspire misc registers
Andrew Davis [Wed, 8 Mar 2023 16:55:48 +0000 (10:55 -0600)]
dt-bindings: mfd: Add TI-Nspire misc registers

The TI Nspire devices contain a set of registers with a seemingly
miscellaneous set of functionality. This area is known simply as the
"misc" region.

Signed-off-by: Andrew Davis <afd@ti.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230308165557.2242-2-afd@ti.com
15 months agomfd: core: Remove .enable() and .disable() callbacks
Uwe Kleine-König [Wed, 8 Mar 2023 09:12:57 +0000 (10:12 +0100)]
mfd: core: Remove .enable() and .disable() callbacks

With commit dd77f5fa97d3 ("mfd: Remove toshiba tmio drivers") the last
mfd driver that implements these callbacks is gone and since commit
652719b1003a ("w1: remove ds1wm driver") the last user is gone. The
corresponding functions mfd_cell_enable() and mfd_cell_disable() are
also unused (since commit 0ca222c81977 ("leds: Remove asic3 driver")).

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230308091257.2404932-1-u.kleine-koenig@pengutronix.de
15 months agodt-bindings: mfd: qcom,tcsr: Document SDX55 TCSR
Krzysztof Kozlowski [Mon, 6 Mar 2023 07:26:17 +0000 (08:26 +0100)]
dt-bindings: mfd: qcom,tcsr: Document SDX55 TCSR

Add compatible for SDX55 TCSR block.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230306072618.10770-1-krzysztof.kozlowski@linaro.org
15 months agomfd: max597x: Add support for MAX5970 and MAX5978
Patrick Rudolph [Tue, 7 Mar 2023 12:12:45 +0000 (13:12 +0100)]
mfd: max597x: Add support for MAX5970 and MAX5978

Implement a regulator driver with IRQ support for fault management.
Written against documentation [1] and [2] and tested on real hardware.

Every channel has it's own regulator supply nammed 'vss1-supply' and
'vss2-supply'. The regulator supply is used to determine the output
voltage, as the smart switch provides no output regulation.
The driver requires the 'shunt-resistor-micro-ohms' to be present in
the devicetree to properly calculate current related values.

You must specify compatible devictree layout:

regulator@3a {
        reg = <0x3a>;
        vss1-supply = <&p3v3>;
        compatible = "maxim,max5978";

        ...

        regulators {
                sw0_ref: SW0 {
                        regulator-compatible = "SW0";
                        shunt-resistor-micro-ohms = <12000>;
                        ...
                }
        }
}

1: https://datasheets.maximintegrated.com/en/ds/MAX5970.pdf
2: https://datasheets.maximintegrated.com/en/ds/MAX5978.pdf

...
Changes in V12:
- Use simple_mfd_i2c driver and remove previous implementation.
- Remove newline
- Use _MFD_MAX597X_H in header file
- Successfull build need following patch from regulator:
https://lore.kernel.org/r/20230216075302.68935-1-Naresh.Solanki@9elements.com
https://lore.kernel.org/r/20230210163225.1208035-1-Naresh.Solanki@9elements.com

Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Signed-off-by: Marcello Sylvester Bauer <sylv@sylv.io>
Signed-off-by: Naresh Solanki <Naresh.Solanki@9elements.com>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230307121246.127425-2-Naresh.Solanki@9elements.com
15 months agodt-bindings: mfd: Add MAX5970 and MAX5978
Marcello Sylvester Bauer [Tue, 7 Mar 2023 12:12:44 +0000 (13:12 +0100)]
dt-bindings: mfd: Add MAX5970 and MAX5978

The MAX597x is a hot swap controller with configurable fault protection.
It also has 10bit ADC for current & voltage measurements.

...
Changes in V12:
- Update title

Signed-off-by: Marcello Sylvester Bauer <sylv@sylv.io>
Co-developed-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Co-developed-by: Naresh Solanki <Naresh.Solanki@9elements.com>
Signed-off-by: Naresh Solanki <Naresh.Solanki@9elements.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230307121246.127425-1-Naresh.Solanki@9elements.com
15 months agodt-bindings: mfd: qcom,tcsr: Add compatible for sdx65
Rohit Agarwal [Wed, 8 Mar 2023 12:19:48 +0000 (17:49 +0530)]
dt-bindings: mfd: qcom,tcsr: Add compatible for sdx65

Add the qcom,sdx65-tcsr compatible.

Signed-off-by: Rohit Agarwal <quic_rohiagar@quicinc.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/1678277993-18836-2-git-send-email-quic_rohiagar@quicinc.com
15 months agogpio: Add support for Intel LJCA USB GPIO driver
Ye Xiang [Sat, 25 Feb 2023 14:01:15 +0000 (22:01 +0800)]
gpio: Add support for Intel LJCA USB GPIO driver

This patch implements the GPIO function of Intel USB-I2C/GPIO/SPI adapter
device named "La Jolla Cove Adapter" (LJCA). It communicate with LJCA
GPIO module with specific protocol through interfaces exported by LJCA USB
driver.

Signed-off-by: Ye Xiang <xiang.ye@intel.com>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230225140118.2037220-3-xiang.ye@intel.com
15 months agomfd: rt5033: Fix comments and style in includes
Jakob Hauser [Tue, 28 Feb 2023 22:32:20 +0000 (23:32 +0100)]
mfd: rt5033: Fix comments and style in includes

Fix comments and remove some empty lines in rt5033-private.h. Align struct
rt5033_charger in rt5033.h.

Signed-off-by: Jakob Hauser <jahau@rocketmail.com>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/606950da6f4b36f5a124ff13756c78644fc89804.1677620677.git.jahau@rocketmail.com
15 months agodt-bindings: mfd: qcom,tcsr: Add compatible for sm8450
Mukesh Ojha [Thu, 2 Feb 2023 11:11:24 +0000 (16:41 +0530)]
dt-bindings: mfd: qcom,tcsr: Add compatible for sm8450

Document the qcom,sm8450-tcsr compatible.

Signed-off-by: Mukesh Ojha <quic_mojha@quicinc.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/1675336284-548-1-git-send-email-quic_mojha@quicinc.com
15 months agomfd: tqmx86: Correct board names for TQMxE39x
Matthias Schiffer [Mon, 20 Feb 2023 11:25:46 +0000 (12:25 +0100)]
mfd: tqmx86: Correct board names for TQMxE39x

It seems that this driver was developed based on preliminary documentation.
Report the correct names for all TQMxE39x variants, as they are used by
the released hardware revisions:

- Fix names for TQMxE39C1/C2 board IDs
- Distinguish TQMxE39M and TQMxE39S, which use the same board ID

The TQMxE39M/S are distinguished using the SAUC (Sanctioned Alternate
Uses Configuration) register of the GPIO controller. This also prepares
for the correct handling of the differences between the GPIO controllers
of our COMe and SMARC modules.

Fixes: 2f17dd34ffed ("mfd: tqmx86: IO controller with I2C, Wachdog and GPIO")
Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/aca9a7cb42a85181bcb456c437554d2728e708ec.1676892223.git.matthias.schiffer@ew.tq-group.com
15 months agomfd: tqmx86: Specify IO port register range more precisely
Matthias Schiffer [Mon, 20 Feb 2023 11:25:45 +0000 (12:25 +0100)]
mfd: tqmx86: Specify IO port register range more precisely

Registers 0x160..0x17f are unassigned. Use 0x180 as base register and
update offets accordingly.

Also change the size of the range to include 0x19f. While 0x19f is
currently reserved for future extensions, so are several of the previous
registers up to 0x19e, and it is weird to leave out just the last one.

Fixes: 2f17dd34ffed ("mfd: tqmx86: IO controller with I2C, Wachdog and GPIO")
Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/db4677ac318b1283c8956f637f409995a30a31c3.1676892223.git.matthias.schiffer@ew.tq-group.com
15 months agomfd: tqmx86: Do not access I2C_DETECT register through io_base
Matthias Schiffer [Mon, 20 Feb 2023 11:25:44 +0000 (12:25 +0100)]
mfd: tqmx86: Do not access I2C_DETECT register through io_base

The I2C_DETECT register is at IO port 0x1a7, which is outside the range
passed to devm_ioport_map() for io_base, and was only working because
there aren't actually any bounds checks for IO port accesses.

Extending the range does not seem like a good solution here, as it would
then conflict with the IO resource assigned to the I2C controller. As
this is just a one-off access during probe, use a simple inb() instead.

While we're at it, drop the unused define TQMX86_REG_I2C_INT_EN.

Fixes: 2f17dd34ffed ("mfd: tqmx86: IO controller with I2C, Wachdog and GPIO")
Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/e8300a30f0791afb67d79db8089fb6004855f378.1676892223.git.matthias.schiffer@ew.tq-group.com
15 months agodt-bindings: mfd: syscon: Add StarFive JH7100 sysmain compatible
Emil Renner Berthing [Sat, 11 Feb 2023 03:18:15 +0000 (05:18 +0200)]
dt-bindings: mfd: syscon: Add StarFive JH7100 sysmain compatible

Document StarFive JH7100 SoC compatible for sysmain registers.

Signed-off-by: Emil Renner Berthing <kernel@esmil.dk>
Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230211031821.976408-7-cristian.ciocaltea@collabora.com
15 months agomfd: intel_soc_pmic_crc: Remove MODULE_LICENSE in non-modules
Nick Alcock [Fri, 24 Feb 2023 15:07:48 +0000 (15:07 +0000)]
mfd: intel_soc_pmic_crc: Remove MODULE_LICENSE in non-modules

Since commit 8b41fc4454e ("kbuild: create modules.builtin without
Makefile.modbuiltin or tristate.conf"), MODULE_LICENSE declarations
are used to identify modules. As a consequence, uses of the macro
in non-modules will cause modprobe to misidentify their containing
object file as a module when it is not (false positives), and modprobe
might succeed rather than failing with a suitable error message.

So remove it in the files in this commit, none of which can be built as
modules.

Suggested-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Nick Alcock <nick.alcock@oracle.com>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230224150811.80316-5-nick.alcock@oracle.com
15 months agomfd: bcm2835-pm: Remove MODULE_LICENSE in non-modules
Nick Alcock [Fri, 24 Feb 2023 15:08:05 +0000 (15:08 +0000)]
mfd: bcm2835-pm: Remove MODULE_LICENSE in non-modules

Since commit 8b41fc4454e ("kbuild: create modules.builtin without
Makefile.modbuiltin or tristate.conf"), MODULE_LICENSE declarations
are used to identify modules. As a consequence, uses of the macro
in non-modules will cause modprobe to misidentify their containing
object file as a module when it is not (false positives), and modprobe
might succeed rather than failing with a suitable error message.

So remove it in the files in this commit, none of which can be built as
modules.

Suggested-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Nick Alcock <nick.alcock@oracle.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230224150811.80316-22-nick.alcock@oracle.com
15 months agomfd: qcom-pm8008: Remove workaround for a regmap-irq quirk
Aidan MacDonald [Thu, 16 Feb 2023 22:22:14 +0000 (22:22 +0000)]
mfd: qcom-pm8008: Remove workaround for a regmap-irq quirk

Remove pm8008_init(), which according to the comments exists only
as a workaround for regmap-irq's odd treatment of type registers.
This workaround shouldn't be needed anymore because this driver
uses config registers, which are always programmed by regmap-irq
no matter what the initial register state is.

Signed-off-by: Aidan MacDonald <aidanmacdonald.0x0@gmail.com>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230216222214.138671-5-aidanmacdonald.0x0@gmail.com
15 months agomfd: qcom-pm8008: Use .get_irq_reg() for irq chip
Aidan MacDonald [Thu, 16 Feb 2023 22:22:13 +0000 (22:22 +0000)]
mfd: qcom-pm8008: Use .get_irq_reg() for irq chip

Replace the deprecated not_fixed_stride flag and the associated
hierarchy of offsets with a .get_irq_reg() callback.

Signed-off-by: Aidan MacDonald <aidanmacdonald.0x0@gmail.com>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230216222214.138671-4-aidanmacdonald.0x0@gmail.com
15 months agomfd: qcom-pm8008: Convert irq chip to config regs
Aidan MacDonald [Thu, 16 Feb 2023 22:22:12 +0000 (22:22 +0000)]
mfd: qcom-pm8008: Convert irq chip to config regs

Replace type and virtual registers, which are both deprecated,
with config registers. This also simplifies the driver because
IRQ types are set in one place, the set_type_config() callback.

Signed-off-by: Aidan MacDonald <aidanmacdonald.0x0@gmail.com>
[Lee: Squashed in fix-up patch from Stephen Rothwell adapting to new .set_type_config() API]
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230216222214.138671-3-aidanmacdonald.0x0@gmail.com
15 months agomfd: qcom-pm8008: Fix swapped mask/unmask in irq chip
Aidan MacDonald [Thu, 16 Feb 2023 22:22:11 +0000 (22:22 +0000)]
mfd: qcom-pm8008: Fix swapped mask/unmask in irq chip

The usual behavior of mask registers is writing a '1' bit to
disable (mask) an interrupt; similarly, writing a '1' bit to
an unmask register enables (unmasks) an interrupt.

Due to a longstanding issue in regmap-irq, mask and unmask
registers were inverted when both kinds of registers were
present on the same chip, ie. regmap-irq actually wrote '1's
to the mask register to enable an IRQ and '1's to the unmask
register to disable an IRQ.

This was fixed by commit e8ffb12e7f06 ("regmap-irq: Fix
inverted handling of unmask registers") but the fix is opt-in
via mask_unmask_non_inverted = true because it requires manual
changes for each affected driver. The new behavior will become
the default once all drivers have been updated.

The PM8008 appears to rely on the inverted behavior. It has
separate set & clear registers for a register called INT_EN,
which presumably enables interrupts by writing '1's. Opt in
to the new non-inverted behavior & swap mask_base/unmask_base.

Signed-off-by: Aidan MacDonald <aidanmacdonald.0x0@gmail.com>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230216222214.138671-2-aidanmacdonald.0x0@gmail.com
15 months agodt-bindings: mfd: Add the tcsr compatible for IPQ9574
Poovendhan Selvaraj [Wed, 8 Feb 2023 05:33:32 +0000 (11:03 +0530)]
dt-bindings: mfd: Add the tcsr compatible for IPQ9574

Add the tcsr compatible string for IPQ9574 SoC

Signed-off-by: Poovendhan Selvaraj <quic_poovendh@quicinc.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230208053332.16537-6-quic_poovendh@quicinc.com
15 months agomfd: core: Reorder fields in 'struct mfd_cell' to save some memory
Christophe JAILLET [Tue, 14 Feb 2023 08:58:59 +0000 (09:58 +0100)]
mfd: core: Reorder fields in 'struct mfd_cell' to save some memory

Group some variables based on their sizes to reduce hole and avoid padding.
On x86_64, this shrinks the size from 144 to 128 bytes.

As an example:

$ size drivers/mfd/as3722.o (Before)
   text    data     bss     dec     hex filename
   9441     680      16   10137    2799 drivers/mfd/as3722.o

$ size drivers/mfd/as3722.o (After)
   text    data     bss     dec     hex filename
   9345     680      16   10041    2739 drivers/mfd/as3722.o

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/bb631974888dfe1af593b6280cf30fb913d2d1a4.1676365116.git.christophe.jaillet@wanadoo.fr
15 months agodt-bindings: mfd: qcom,spmi-pmic: Allow RRADC as adc@ subnode
Konrad Dybcio [Mon, 13 Feb 2023 20:13:37 +0000 (21:13 +0100)]
dt-bindings: mfd: qcom,spmi-pmic: Allow RRADC as adc@ subnode

This was omitted when adding the RRADC bindings.

Fixes: 7ea58c951ab3 ("dt-bindings: iio: adc: document qcom-spmi-rradc")
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230213201337.2089970-1-konrad.dybcio@linaro.org
15 months agomfd: qcom_rpm: Use devm_platform_get_and_ioremap_resource()
Ye Xingchen [Wed, 8 Feb 2023 09:34:51 +0000 (17:34 +0800)]
mfd: qcom_rpm: Use devm_platform_get_and_ioremap_resource()

Convert platform_get_resource(), devm_ioremap_resource() to a single
call to devm_platform_get_and_ioremap_resource(), as this is exactly
what this function does.

Signed-off-by: Ye Xingchen <ye.xingchen@zte.com.cn>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/202302081734511884545@zte.com.cn
15 months agomfd: atmel-flexcom: Use devm_platform_get_and_ioremap_resource()
Ye Xingchen [Wed, 8 Feb 2023 09:31:59 +0000 (17:31 +0800)]
mfd: atmel-flexcom: Use devm_platform_get_and_ioremap_resource()

Convert platform_get_resource(), devm_ioremap_resource() to a single
call to devm_platform_get_and_ioremap_resource(), as this is exactly
what this function does.

Signed-off-by: Ye Xingchen <ye.xingchen@zte.com.cn>
Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Tested-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/202302081731593374472@zte.com.cn
15 months agomfd: sun4i-gpadc: Use devm_platform_get_and_ioremap_resource()
Ye Xingchen [Wed, 8 Feb 2023 09:36:50 +0000 (17:36 +0800)]
mfd: sun4i-gpadc: Use devm_platform_get_and_ioremap_resource()

Convert platform_get_resource(), devm_ioremap_resource() to a single
call to devm_platform_get_and_ioremap_resource(), as this is exactly
what this function does.

Signed-off-by: Ye Xingchen <ye.xingchen@zte.com.cn>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/202302081736500534579@zte.com.cn
15 months agomfd: ssbi: Use devm_platform_get_and_ioremap_resource()
Ye Xingchen [Wed, 8 Feb 2023 09:35:44 +0000 (17:35 +0800)]
mfd: ssbi: Use devm_platform_get_and_ioremap_resource()

Convert platform_get_resource(), devm_ioremap_resource() to a single
call to devm_platform_get_and_ioremap_resource(), as this is exactly
what this function does.

Signed-off-by: Ye Xingchen <ye.xingchen@zte.com.cn>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/202302081735440864562@zte.com.cn
15 months agomfd: ipaq-micro: Use devm_platform_get_and_ioremap_resource()
Ye Xingchen [Wed, 8 Feb 2023 09:33:54 +0000 (17:33 +0800)]
mfd: ipaq-micro: Use devm_platform_get_and_ioremap_resource()

Convert platform_get_resource(), devm_ioremap_resource() to a single
call to devm_platform_get_and_ioremap_resource(), as this is exactly
what this function does.

Signed-off-by: Ye Xingchen <ye.xingchen@zte.com.cn>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/202302081733542304522@zte.com.cn
15 months agomfd: hi6421-pmic: Use devm_platform_get_and_ioremap_resource()
Ye Xingchen [Wed, 8 Feb 2023 09:33:01 +0000 (17:33 +0800)]
mfd: hi6421-pmic: Use devm_platform_get_and_ioremap_resource()

Convert platform_get_resource(), devm_ioremap_resource() to a single
call to devm_platform_get_and_ioremap_resource(), as this is exactly
what this function does.

Signed-off-by: Ye Xingchen <ye.xingchen@zte.com.cn>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/202302081733017704501@zte.com.cn
15 months agomfd: si476x-cmd: Fix several issues reported by codespell
Jackie Liu [Mon, 6 Feb 2023 03:22:31 +0000 (11:22 +0800)]
mfd: si476x-cmd: Fix several issues reported by codespell

Fix some typo, find by 'codespell drivers/mfd/si476x-cmd.c'

succsess -> success
interace -> interface
comand   -> command
failre   -> failure

Reported-by: k2ci <kernel-bot@kylinos.cn>
Signed-off-by: Jackie Liu <liuyun01@kylinos.cn>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230206032231.3208296-1-liu.yun@linux.dev
15 months agomfd: intel_soc_pmic_chtwc: Add Lenovo Yoga Book X90F to intel_cht_wc_models
Hans de Goede [Wed, 1 Mar 2023 09:54:02 +0000 (10:54 +0100)]
mfd: intel_soc_pmic_chtwc: Add Lenovo Yoga Book X90F to intel_cht_wc_models

The Android Lenovo Yoga Book X90F / X90L uses the same charger / fuelgauge
setup as the already supported Windows Lenovo Yoga Book X91F/L, add
a DMI match for this to intel_cht_wc_models with driver_data
set to INTEL_CHT_WC_LENOVO_YOGABOOK1.

When the quirk for the X91F/L was initially added it was written to
also apply to the X90F/L but this does not work because the Android
version of the Yoga Book uses completely different DMI strings.
Also adjust the X91F/L quirk to reflect that it only applies to
the X91F/L models.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230301095402.28582-1-hdegoede@redhat.com
15 months agortc: s5m: Drop S5M8763 support
David Virag [Tue, 31 Jan 2023 18:30:07 +0000 (19:30 +0100)]
rtc: s5m: Drop S5M8763 support

The S5M8763 MFD has no device tree compatible, and since board file
support for it was removed, there's no way to use this MFD. After
removing the remaining code for it from the MFD driver, also remove
support for it in the s5m RTC driver, and all remaining references to
it.

Signed-off-by: David Virag <virag.david003@gmail.com>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230131183008.4451-3-virag.david003@gmail.com
15 months agomfd: sec: Remove PMICs without compatibles
David Virag [Tue, 31 Jan 2023 18:30:06 +0000 (19:30 +0100)]
mfd: sec: Remove PMICs without compatibles

The S5M8751 and S5M8763 PMIC chips have no corresponding compatible
values, so since board file support was removed for this driver, there
is no way to specify these PMICs as present in boards anymore.
Remove leftovers of these chips since it's dead code.

Signed-off-by: David Virag <virag.david003@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230131183008.4451-2-virag.david003@gmail.com
15 months agoregmap: Pass irq_drv_data as a parameter for set_type_config()
William Breathitt Gray [Wed, 5 Apr 2023 15:45:42 +0000 (11:45 -0400)]
regmap: Pass irq_drv_data as a parameter for set_type_config()

Allow the struct regmap_irq_chip set_type_config() callback to access
irq_drv_data by passing it as a parameter.

Signed-off-by: William Breathitt Gray <william.gray@linaro.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20e15cd3afae80922b7e0577c7741df86b3390c5.1680708357.git.william.gray@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
16 months agoLinux 6.3-rc3
Linus Torvalds [Sun, 19 Mar 2023 20:27:55 +0000 (13:27 -0700)]
Linux 6.3-rc3

16 months agoMerge tag 'trace-v6.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace...
Linus Torvalds [Sun, 19 Mar 2023 17:46:02 +0000 (10:46 -0700)]
Merge tag 'trace-v6.3-rc2' of git://git./linux/kernel/git/trace/linux-trace

Pull tracing fixes from Steven Rostedt:

 - Fix setting affinity of hwlat threads in containers

   Using sched_set_affinity() has unwanted side effects when being
   called within a container. Use set_cpus_allowed_ptr() instead

 - Fix per cpu thread management of the hwlat tracer:
    - Do not start per_cpu threads if one is already running for the CPU
    - When starting per_cpu threads, do not clear the kthread variable
      as it may already be set to running per cpu threads

 - Fix return value for test_gen_kprobe_cmd()

   On error the return value was overwritten by being set to the result
   of the call from kprobe_event_delete(), which would likely succeed,
   and thus have the function return success

 - Fix splice() reads from the trace file that was broken by commit
   36e2c7421f02 ("fs: don't allow splice read/write without explicit
   ops")

 - Remove obsolete and confusing comment in ring_buffer.c

   The original design of the ring buffer used struct page flags for
   tricks to optimize, which was shortly removed due to them being
   tricks. But a comment for those tricks remained

 - Set local functions and variables to static

* tag 'trace-v6.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  tracing/hwlat: Replace sched_setaffinity with set_cpus_allowed_ptr
  ring-buffer: remove obsolete comment for free_buffer_page()
  tracing: Make splice_read available again
  ftrace: Set direct_ops storage-class-specifier to static
  trace/hwlat: Do not start per-cpu thread if it is already running
  trace/hwlat: Do not wipe the contents of per-cpu thread data
  tracing/osnoise: set several trace_osnoise.c variables storage-class-specifier to static
  tracing: Fix wrong return in kprobe_event_gen_test.c

16 months agotracing/hwlat: Replace sched_setaffinity with set_cpus_allowed_ptr
Costa Shulyupin [Thu, 16 Mar 2023 14:45:35 +0000 (16:45 +0200)]
tracing/hwlat: Replace sched_setaffinity with set_cpus_allowed_ptr

There is a problem with the behavior of hwlat in a container,
resulting in incorrect output. A warning message is generated:
"cpumask changed while in round-robin mode, switching to mode none",
and the tracing_cpumask is ignored. This issue arises because
the kernel thread, hwlatd, is not a part of the container, and
the function sched_setaffinity is unable to locate it using its PID.
Additionally, the task_struct of hwlatd is already known.
Ultimately, the function set_cpus_allowed_ptr achieves
the same outcome as sched_setaffinity, but employs task_struct
instead of PID.

Test case:

  # cd /sys/kernel/tracing
  # echo 0 > tracing_on
  # echo round-robin > hwlat_detector/mode
  # echo hwlat > current_tracer
  # unshare --fork --pid bash -c 'echo 1 > tracing_on'
  # dmesg -c

Actual behavior:

[573502.809060] hwlat_detector: cpumask changed while in round-robin mode, switching to mode none

Link: https://lore.kernel.org/linux-trace-kernel/20230316144535.1004952-1-costa.shul@redhat.com
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Fixes: 0330f7aa8ee63 ("tracing: Have hwlat trace migrate across tracing_cpumask CPUs")
Signed-off-by: Costa Shulyupin <costa.shul@redhat.com>
Acked-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
16 months agoring-buffer: remove obsolete comment for free_buffer_page()
Vlastimil Babka [Wed, 15 Mar 2023 14:24:46 +0000 (15:24 +0100)]
ring-buffer: remove obsolete comment for free_buffer_page()

The comment refers to mm/slob.c which is being removed. It comes from
commit ed56829cb319 ("ring_buffer: reset buffer page when freeing") and
according to Steven the borrowed code was a page mapcount and mapping
reset, which was later removed by commit e4c2ce82ca27 ("ring_buffer:
allocate buffer page pointer"). Thus the comment is not accurate anyway,
remove it.

Link: https://lore.kernel.org/linux-trace-kernel/20230315142446.27040-1-vbabka@suse.cz
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Ingo Molnar <mingo@elte.hu>
Reported-by: Mike Rapoport <mike.rapoport@gmail.com>
Suggested-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Fixes: e4c2ce82ca27 ("ring_buffer: allocate buffer page pointer")
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Reviewed-by: Mukesh Ojha <quic_mojha@quicinc.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
16 months agotracing: Make splice_read available again
Sung-hun Kim [Tue, 14 Mar 2023 01:37:07 +0000 (10:37 +0900)]
tracing: Make splice_read available again

Since the commit 36e2c7421f02 ("fs: don't allow splice read/write
without explicit ops") is applied to the kernel, splice() and
sendfile() calls on the trace file (/sys/kernel/debug/tracing
/trace) return EINVAL.

This patch restores these system calls by initializing splice_read
in file_operations of the trace file. This patch only enables such
functionalities for the read case.

Link: https://lore.kernel.org/linux-trace-kernel/20230314013707.28814-1-sfoon.kim@samsung.com
Cc: stable@vger.kernel.org
Fixes: 36e2c7421f02 ("fs: don't allow splice read/write without explicit ops")
Signed-off-by: Sung-hun Kim <sfoon.kim@samsung.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
16 months agoMerge tag 'tty-6.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Linus Torvalds [Sun, 19 Mar 2023 17:09:58 +0000 (10:09 -0700)]
Merge tag 'tty-6.3-rc3' of git://git./linux/kernel/git/gregkh/tty

Pull tty/serial driver fixes from Greg KH:
 "Here are some small tty and serial driver fixes for 6.3-rc3 to resolve
  some reported issues.

  They include:

   - 8250 driver Kconfig issue pointed out by you that showed up in -rc1

   - qcom-geni serial driver fixes

   - various 8250 driver fixes for reported problems

   - fsl_lpuart driver fixes

   - serdev fix for regression in -rc1

   - vt.c bugfix

  All have been in linux-next for over a week with no reported problems"

* tag 'tty-6.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  tty: vt: protect KD_FONT_OP_GET_TALL from unbound access
  serial: qcom-geni: drop bogus uart_write_wakeup()
  serial: qcom-geni: fix mapping of empty DMA buffer
  serial: qcom-geni: fix DMA mapping leak on shutdown
  serial: qcom-geni: fix console shutdown hang
  serdev: Set fwnode for serdev devices
  tty: serial: fsl_lpuart: fix race on RX DMA shutdown
  serial: 8250_pci1xxxx: Disable SERIAL_8250_PCI1XXXX config by default
  serial: 8250_fsl: fix handle_irq locking
  serial: 8250_em: Fix UART port type
  serial: 8250: ASPEED_VUART: select REGMAP instead of depending on it
  tty: serial: fsl_lpuart: skip waiting for transmission complete when UARTCTRL_SBK is asserted
  Revert "tty: serial: fsl_lpuart: adjust SERIAL_FSL_LPUART_CONSOLE config dependency"

16 months agoMerge tag 'char-misc-6.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh...
Linus Torvalds [Sun, 19 Mar 2023 17:04:58 +0000 (10:04 -0700)]
Merge tag 'char-misc-6.3-rc3' of git://git./linux/kernel/git/gregkh/char-misc

Pull char/misc driver fixes from Greg KH:
 "Here are a few small char/misc/other driver subsystem patches to
  resolve reported problems for 6.3-rc3.

  Included in here are:

   - Interconnect driver fixes for reported problems

   - Memory driver fixes for reported problems

   - nvmem core fix

   - firmware driver fix for reported problem

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'char-misc-6.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (23 commits)
  memory: tegra30-emc: fix interconnect registration race
  memory: tegra20-emc: fix interconnect registration race
  memory: tegra124-emc: fix interconnect registration race
  memory: tegra: fix interconnect registration race
  interconnect: exynos: drop redundant link destroy
  interconnect: exynos: fix registration race
  interconnect: exynos: fix node leak in probe PM QoS error path
  interconnect: qcom: msm8974: fix registration race
  interconnect: qcom: rpmh: fix registration race
  interconnect: qcom: rpmh: fix probe child-node error handling
  interconnect: qcom: rpm: fix registration race
  nvmem: core: return -ENOENT if nvmem cell is not found
  firmware: xilinx: don't make a sleepable memory allocation from an atomic context
  interconnect: qcom: rpm: fix probe child-node error handling
  interconnect: qcom: osm-l3: fix registration race
  interconnect: imx: fix registration race
  interconnect: fix provider registration API
  interconnect: fix icc_provider_del() error handling
  interconnect: fix mem leak when freeing nodes
  interconnect: qcom: qcm2290: Fix MASTER_SNOC_BIMC_NRT
  ...

16 months agoMerge tag 'ras_urgent_for_v6.3_rc3' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 19 Mar 2023 16:57:53 +0000 (09:57 -0700)]
Merge tag 'ras_urgent_for_v6.3_rc3' of git://git./linux/kernel/git/tip/tip

Pull RAS fix from Borislav Petkov:

 - Flush out logged errors immediately after MCA banks configuration
   changes over sysfs have been done instead of waiting until something
   else triggers the workqueue later - another error or the polling
   interval cycle is reached

* tag 'ras_urgent_for_v6.3_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/mce: Make sure logged MCEs are processed after sysfs update

16 months agoMerge tag 'perf_urgent_for_v6.3_rc3' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 19 Mar 2023 16:47:55 +0000 (09:47 -0700)]
Merge tag 'perf_urgent_for_v6.3_rc3' of git://git./linux/kernel/git/tip/tip

Pull perf fixes from Borislav Petkov:

 - Check whether sibling events have been deactivated before adding them
   to groups

 - Update the proper event time tracking variable depending on the event
   type

 - Fix a memory overwrite issue due to using the wrong function argument
   when outputting perf events

* tag 'perf_urgent_for_v6.3_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf: Fix check before add_event_to_groups() in perf_group_detach()
  perf: fix perf_event_context->time
  perf/core: Fix perf_output_begin parameter is incorrectly invoked in perf_event_bpf_output

16 months agoMerge tag 'x86_urgent_for_v6.3_rc3' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 19 Mar 2023 16:43:41 +0000 (09:43 -0700)]
Merge tag 'x86_urgent_for_v6.3_rc3' of git://git./linux/kernel/git/tip/tip

Pull x86 fixes from Borislav Petkov:
 "There's a little bit more 'movement' in there for my taste but it
  needs to happen and should make the code better after it.

   - Check cmdline_find_option()'s return value before further
     processing

   - Clear temporary storage in the resctrl code to prevent access to an
     unexistent MSR

   - Add a simple throttling mechanism to protect the hypervisor from
     potentially malicious SEV guests issuing requests in rapid
     succession.

     In order to not jeopardize the sanity of everyone involved in
     maintaining this code, the request issuing side has received a
     cleanup, split in more or less trivial, small and digestible
     pieces. Otherwise, the code was threatening to become an
     unmaintainable mess.

     Therefore, that cleanup is marked indirectly also for stable so
     that there's no differences between the upstream code and the
     stable variant when it comes down to backporting more there"

* tag 'x86_urgent_for_v6.3_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/mm: Fix use of uninitialized buffer in sme_enable()
  x86/resctrl: Clear staged_config[] before and after it is used
  virt/coco/sev-guest: Add throttling awareness
  virt/coco/sev-guest: Convert the sw_exit_info_2 checking to a switch-case
  virt/coco/sev-guest: Do some code style cleanups
  virt/coco/sev-guest: Carve out the request issuing logic into a helper
  virt/coco/sev-guest: Remove the disable_vmpck label in handle_guest_request()
  virt/coco/sev-guest: Simplify extended guest request handling
  virt/coco/sev-guest: Check SEV_SNP attribute at probe time

16 months agoMerge tag 'ext4_for_linus_urgent' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sun, 19 Mar 2023 16:38:26 +0000 (09:38 -0700)]
Merge tag 'ext4_for_linus_urgent' of git://git./linux/kernel/git/tytso/ext4

Pull ext4 fix from Ted Ts'o:
 "Fix a double unlock bug on an error path in ext4, found by smatch and
  syzkaller"

* tag 'ext4_for_linus_urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  ext4: fix possible double unlock when moving a directory

16 months agoftrace: Set direct_ops storage-class-specifier to static
Tom Rix [Sat, 11 Mar 2023 13:51:13 +0000 (08:51 -0500)]
ftrace: Set direct_ops storage-class-specifier to static

smatch reports this warning
kernel/trace/ftrace.c:2594:19: warning:
  symbol 'direct_ops' was not declared. Should it be static?

The variable direct_ops is only used in ftrace.c, so it should be static

Link: https://lore.kernel.org/linux-trace-kernel/20230311135113.711824-1-trix@redhat.com
Signed-off-by: Tom Rix <trix@redhat.com>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
16 months agotrace/hwlat: Do not start per-cpu thread if it is already running
Tero Kristo [Fri, 10 Mar 2023 10:04:51 +0000 (12:04 +0200)]
trace/hwlat: Do not start per-cpu thread if it is already running

The hwlatd tracer will end up starting multiple per-cpu threads with
the following script:

    #!/bin/sh
    cd /sys/kernel/debug/tracing
    echo 0 > tracing_on
    echo hwlat > current_tracer
    echo per-cpu > hwlat_detector/mode
    echo 100000 > hwlat_detector/width
    echo 200000 > hwlat_detector/window
    echo 1 > tracing_on

To fix the issue, check if the hwlatd thread for the cpu is already
running, before starting a new one. Along with the previous patch, this
avoids running multiple instances of the same CPU thread on the system.

Link: https://lore.kernel.org/all/20230302113654.2984709-1-tero.kristo@linux.intel.com/
Link: https://lkml.kernel.org/r/20230310100451.3948583-3-tero.kristo@linux.intel.com
Cc: stable@vger.kernel.org
Fixes: f46b16520a087 ("trace/hwlat: Implement the per-cpu mode")
Signed-off-by: Tero Kristo <tero.kristo@linux.intel.com>
Acked-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
16 months agotrace/hwlat: Do not wipe the contents of per-cpu thread data
Tero Kristo [Fri, 10 Mar 2023 10:04:50 +0000 (12:04 +0200)]
trace/hwlat: Do not wipe the contents of per-cpu thread data

Do not wipe the contents of the per-cpu kthread data when starting the
tracer, as this will completely forget about already running instances
and can later start new additional per-cpu threads.

Link: https://lore.kernel.org/all/20230302113654.2984709-1-tero.kristo@linux.intel.com/
Link: https://lkml.kernel.org/r/20230310100451.3948583-2-tero.kristo@linux.intel.com
Cc: stable@vger.kernel.org
Fixes: f46b16520a087 ("trace/hwlat: Implement the per-cpu mode")
Signed-off-by: Tero Kristo <tero.kristo@linux.intel.com>
Acked-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
16 months agotracing/osnoise: set several trace_osnoise.c variables storage-class-specifier to...
Tom Rix [Thu, 9 Mar 2023 15:04:14 +0000 (10:04 -0500)]
tracing/osnoise: set several trace_osnoise.c variables storage-class-specifier to static

smatch reports several similar warnings
kernel/trace/trace_osnoise.c:220:1: warning:
  symbol '__pcpu_scope_per_cpu_osnoise_var' was not declared. Should it be static?
kernel/trace/trace_osnoise.c:243:1: warning:
  symbol '__pcpu_scope_per_cpu_timerlat_var' was not declared. Should it be static?
kernel/trace/trace_osnoise.c:335:14: warning:
  symbol 'interface_lock' was not declared. Should it be static?
kernel/trace/trace_osnoise.c:2242:5: warning:
  symbol 'timerlat_min_period' was not declared. Should it be static?
kernel/trace/trace_osnoise.c:2243:5: warning:
  symbol 'timerlat_max_period' was not declared. Should it be static?

These variables are only used in trace_osnoise.c, so it should be static

Link: https://lore.kernel.org/linux-trace-kernel/20230309150414.4036764-1-trix@redhat.com
Signed-off-by: Tom Rix <trix@redhat.com>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Acked-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
16 months agotracing: Fix wrong return in kprobe_event_gen_test.c
Anton Gusev [Tue, 31 Jan 2023 07:58:18 +0000 (10:58 +0300)]
tracing: Fix wrong return in kprobe_event_gen_test.c

Overwriting the error code with the deletion result may cause the
function to return 0 despite encountering an error. Commit b111545d26c0
("tracing: Remove the useless value assignment in
test_create_synth_event()") solves a similar issue by
returning the original error code, so this patch does the same.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Link: https://lore.kernel.org/linux-trace-kernel/20230131075818.5322-1-aagusev@ispras.ru
Signed-off-by: Anton Gusev <aagusev@ispras.ru>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
16 months agoMerge tag 'fbdev-for-6.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller...
Linus Torvalds [Sat, 18 Mar 2023 23:01:34 +0000 (16:01 -0700)]
Merge tag 'fbdev-for-6.3-rc3' of git://git./linux/kernel/git/deller/linux-fbdev

Pull fbdev fixes from Helge Deller:
 "The majority of lines changed is due to a code style cleanup in the
  pnmtologo helper program.

  Arnd removed the omap1 osk driver and the SIS fb driver is now
  orphaned.

  Other than that it's the usual bunch of small fixes and cleanups, e.g.
  prevent possible divide-by-zero in various fb drivers if the pixclock
  is zero and various conversions to devm_platform*() and of_property*()
  functions:

   - Drop omap1 osk driver

   - Various potential divide by zero pixclock fixes

   - Add pixelclock and fb_check_var() to stifb

   - Code style cleanups and indenting fixes"

* tag 'fbdev-for-6.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev:
  fbdev: Use of_property_present() for testing DT property presence
  fbdev: au1200fb: Fix potential divide by zero
  fbdev: lxfb: Fix potential divide by zero
  fbdev: intelfb: Fix potential divide by zero
  fbdev: nvidia: Fix potential divide by zero
  fbdev: stifb: Provide valid pixelclock and add fb_check_var() checks
  fbdev: omapfb: remove omap1 osk driver
  fbdev: xilinxfb: Use devm_platform_get_and_ioremap_resource()
  fbdev: wm8505fb: Use devm_platform_ioremap_resource()
  fbdev: pxa3xx-gcu: Use devm_platform_get_and_ioremap_resource()
  fbdev: Use of_property_read_bool() for boolean properties
  fbdev: clps711x-fb: Use devm_platform_get_and_ioremap_resource()
  fbdev: tgafb: Fix potential divide by zero
  MAINTAINERS: orphan SIS FRAMEBUFFER DRIVER
  fbdev: omapfb: cleanup inconsistent indentation
  drivers: video: logo: add SPDX comment, remove GPL notice in pnmtologo.c
  drivers: video: logo: fix code style issues in pnmtologo.c