linux-stable.git/drivers/pinctrl/bcm, branch linux-5.4.y

pinctrl: bcm281xx: Use "unsigned int" instead of bare "unsigned"

2025-06-04T12:32:32+00:00

[ Upstream commit 07b5a2a13f4704c5eae3be7277ec54ffdba45f72 ]

Replace uses of bare "unsigned" with "unsigned int" to fix checkpatch
warnings. No functional change.

Signed-off-by: Artur Weber 
Link: https://lore.kernel.org/20250303-bcm21664-pinctrl-v3-2-5f8b80e4ab51@gmail.com
Signed-off-by: Linus Walleij 
Signed-off-by: Sasha Levin

pinctrl: bcm281xx: Fix incorrect regmap max_registers value

2025-04-10T12:29:35+00:00

[ Upstream commit 68283c1cb573143c0b7515e93206f3503616bc10 ]

The max_registers value does not take into consideration the stride;
currently, it's set to the number of the last pin, but this does not
accurately represent the final register.

Fix this by multiplying the current value by 4.

Fixes: 54b1aa5a5b16 ("ARM: pinctrl: Add Broadcom Capri pinctrl driver")
Signed-off-by: Artur Weber 
Link: https://lore.kernel.org/20250207-bcm21664-pinctrl-v1-2-e7cfac9b2d3b@gmail.com
Signed-off-by: Linus Walleij 
Signed-off-by: Sasha Levin

pinctrl: bcm2835: Fix a few error paths

2022-02-08T17:24:33+00:00

commit 5297c693d8c8e08fa742e3112cf70723f7a04da2 upstream.

After commit 266423e60ea1 ("pinctrl: bcm2835: Change init order for gpio
hogs") a few error paths would not unwind properly the registration of
gpio ranges. Correct that by assigning a single error label and goto it
whenever we encounter a fatal error.

Fixes: 266423e60ea1 ("pinctrl: bcm2835: Change init order for gpio hogs")
Signed-off-by: Florian Fainelli 
Link: https://lore.kernel.org/r/20220127215033.267227-1-f.fainelli@gmail.com
Signed-off-by: Linus Walleij 
Signed-off-by: Greg Kroah-Hartman

pinctrl: bcm2835: Change init order for gpio hogs

2022-01-29T09:25:10+00:00

commit 266423e60ea1b953fcc0cd97f3dad85857e434d1 upstream

...and gpio-ranges

pinctrl-bcm2835 is a combined pinctrl/gpio driver. Currently the gpio
side is registered first, but this breaks gpio hogs (which are
configured during gpiochip_add_data). Part of the hog initialisation
is a call to pinctrl_gpio_request, and since the pinctrl driver hasn't
yet been registered this results in an -EPROBE_DEFER from which it can
never recover.

Change the initialisation sequence to register the pinctrl driver
first.

This also solves a similar problem with the gpio-ranges property, which
is required in order for released pins to be returned to inputs.

Fixes: 73345a18d464b ("pinctrl: bcm2835: Pass irqchip when adding gpiochip")
Signed-off-by: Phil Elwell 
Reviewed-by: Florian Fainelli 
Link: https://lore.kernel.org/r/20211206092237.4105895-2-phil@raspberrypi.com
Signed-off-by: Linus Walleij 
Signed-off-by: Florian Fainelli 
Signed-off-by: Greg Kroah-Hartman

pinctrl: bcm2835: Add support for wake-up interrupts

2022-01-29T09:25:10+00:00

commit 920fecc1aa4591da27ef9dcb338fc5da86b404d7 upstream

Leverage the IRQCHIP_MASK_ON_SUSPEND flag in order to avoid having to
specifically treat the GPIO interrupts during suspend and resume, and
simply implement an irq_set_wake() callback that is responsible for
enabling the parent wake-up interrupt as a wake-up interrupt.

To avoid allocating unnecessary resources for other chips, the wake-up
interrupts are only initialized if we have a brcm,bcm7211-gpio
compatibility string.

Signed-off-by: Florian Fainelli 
Link: https://lore.kernel.org/r/20200531001101.24945-5-f.fainelli@gmail.com
Signed-off-by: Linus Walleij 
Signed-off-by: Florian Fainelli 
Signed-off-by: Greg Kroah-Hartman

pinctrl: bcm2835: Match BCM7211 compatible string

2022-01-29T09:25:10+00:00

commit 562c856f96d22ef1204b0a314bc52e85617199b4 upstream

The BCM7211 SoC uses the same pinconf_ops as the ones defined for the
BCM2711 SoC, match the compatible string and use the correct set of
options.

Signed-off-by: Florian Fainelli 
Link: https://lore.kernel.org/r/20200531001101.24945-4-f.fainelli@gmail.com
Signed-off-by: Linus Walleij 
Signed-off-by: Florian Fainelli 
Signed-off-by: Greg Kroah-Hartman

pinctrl: bcm2835: Add support for all GPIOs on BCM2711

2022-01-29T09:25:10+00:00

commit b1d84a3d0a26c5844a22bc09a42704b9371208bb upstream

The BCM2711 supports 58 GPIOs. So extend pinctrl and GPIOs accordingly.

Signed-off-by: Stefan Wahren 
Link: https://lore.kernel.org/r/1581166975-22949-4-git-send-email-stefan.wahren@i2se.com
Reviewed-by: Nicolas Saenz Julienne 
Signed-off-by: Linus Walleij 
Signed-off-by: Florian Fainelli 
Signed-off-by: Greg Kroah-Hartman

pinctrl: bcm2835: Refactor platform data

2022-01-29T09:25:10+00:00

commit 90bfaf028d61a6d523c685b63c2bcc94eebb8057 upstream

This prepares the platform data to be easier to extend for more GPIOs.
Except of this there is no functional change.

Signed-off-by: Stefan Wahren 
Link: https://lore.kernel.org/r/1581166975-22949-3-git-send-email-stefan.wahren@i2se.com
Reviewed-by: Nicolas Saenz Julienne 
Signed-off-by: Linus Walleij 
Signed-off-by: Florian Fainelli 
Signed-off-by: Greg Kroah-Hartman

pinctrl: bcm2835: Drop unused define

2022-01-29T09:25:10+00:00

commit be30d5de0a5a52c6ee2cc453a51301037ab94aa upstream

There is no usage for this define, so drop it.

Signed-off-by: Stefan Wahren 
Link: https://lore.kernel.org/r/1580148908-4863-2-git-send-email-stefan.wahren@i2se.com
Reviewed-by: Nicolas Saenz Julienne 
Signed-off-by: Linus Walleij 
Signed-off-by: Florian Fainelli 
Signed-off-by: Greg Kroah-Hartman

Revert "pinctrl: bcm: ns: support updated DT binding as syscon subnode"

2021-11-02T18:46:12+00:00

commit 6dba4bdfd7a30e77b848a45404b224588bf989e5 upstream.

This reverts commit a49d784d5a8272d0f63c448fe8dc69e589db006e.

The updated binding was wrong / invalid and has been reverted. There
isn't any upstream kernel DTS using it and Broadcom isn't known to use
it neither. There is close to zero chance this will cause regression for
anyone.

Actually in-kernel bcm5301x.dtsi still uses the old good binding and so
it's broken since the driver update. This revert fixes it.

Signed-off-by: Rafał Miłecki 
Link: https://lore.kernel.org/r/20211008205938.29925-3-zajec5@gmail.com
Signed-off-by: Linus Walleij 
Signed-off-by: Greg Kroah-Hartman