linux.git/drivers/pinctrl/stm32, branch v6.5

pinctrl: stm32: add stm32mp257 pinctrl support

2023-06-08T14:01:29+00:00

Add stm32mp257 pinctrl support.

Signed-off-by: Alexandre Torgue 
Reviewed-by: Linus Walleij

Merge tag 'pinctrl-v6.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

2023-05-02T22:40:41+00:00

Pull pin control updates from Linus Walleij:
"Mostly drivers! Nothing special: some new Qualcomm chips as usual, and
the new NXP S32 and nVidia BlueField-3.

Core changes:

- Make a lot of pin controllers with GPIO and irqchips immutable,
i.e. not living structs, but const structs. This is driving a
changed initiated by the irqchip maintainers.

New drivers:

- New driver for the NXP S32 SoC pin controller

- As part of a thorough cleanup and restructuring of the
Ralink/Mediatek drivers, the Ralink MIPS pin control drivers were
folded into the Mediatek directory and the family is renamed
"mtmips". The Ralink chips live on as Mediatek MIPS family where
new variants can be added. As part of this work also the device
tree bindings were reworked.

- New subdriver for the Qualcomm SM7150 SoC.

- New subdriver for the Qualcomm IPQ9574 SoC.

- New driver for the nVidia BlueField-3 SoC.

- Support for the Qualcomm PMM8654AU mixed signal circuit GPIO.

- Support for the Qualcomm PMI632 mixed signal circuit GPIO.

Improvements:

- Add some missing pins and generic cleanups on the Renesas r8a779g0
and r8a779g0 pin controllers. Generic Renesas extension for power
source selection on several SoCs.

- Misc cleanups for the Atmel AT91 and AT91-PIO4 pin controllers

- Make the GPIO mode work on the Qualcomm SM8550-lpass-lpi driver.

- Several device tree binding cleanups as the binding YAML syntax is
solidifying"

* tag 'pinctrl-v6.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (153 commits)
pinctrl-bcm2835.c: fix race condition when setting gpio dir
dt-bindings: pinctrl: qcom,sm8150: Drop duplicate function value "atest_usb2"
dt-bindings: pinctrl: qcom: Add few missing functions
pinctrl: qcom: spmi-gpio: Add PMI632 support
dt-bindings: pinctrl: qcom,pmic-gpio: add PMI632
pinctrl: wpcm450: select MFD_SYSCON
pinctrl: qcom ssbi-gpio: Convert to immutable irq_chip
pinctrl: qcom ssbi-mpp: Convert to immutable irq_chip
pinctrl: qcom spmi-mpp: Convert to immutable irq_chip
pinctrl: plgpio: Convert to immutable irq_chip
pinctrl: pistachio: Convert to immutable irq_chip
pinctrl: pic32: Convert to immutable irq_chip
pinctrl: sx150x: Convert to immutable irq_chip
pinctrl: stmfx: Convert to immutable irq_chip
pinctrl: st: Convert to immutable irq_chip
pinctrl: mcp23s08: Convert to immutable irq_chip
pinctrl: equilibrium: Convert to immutable irq_chip
pinctrl: npcm7xx: Convert to immutable irq_chip
pinctrl: armada-37xx: Convert to immutable irq_chip
pinctrl: nsp: Convert to immutable irq_chip
...

pinctrl: Use of_property_present() for testing DT property presence

2023-03-23T08:28:38+00:00

It is preferred to use typed property access functions (i.e.
of_property_read_ 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 
Reviewed-by: Geert Uytterhoeven 
Reviewed-by: Jernej Skrabec 
Reviewed-by: AngeloGioacchino Del Regno 
Link: https://lore.kernel.org/r/20230310144721.1544669-1-robh@kernel.org
[Dropped hunk hitting drivers/pinctrl/renesas/pinctrl.c]
Signed-off-by: Linus Walleij

pinctrl: stm32: use dynamic allocation of GPIO base

2023-03-06T14:20:28+00:00

Since commit 502df79b860563d7 ("gpiolib: Warn on drivers still using static
gpiobase allocation"), one or more warnings are printed during boot on
systems where static allocation of GPIO base is used:

[    0.197707] gpio gpiochip0: Static allocation of GPIO base is deprecated, use dynamic allocation.
[    0.199942] stm32f429-pinctrl soc:pinctrl@40020000: GPIOA bank added
[    0.200711] gpio gpiochip1: Static allocation of GPIO base is deprecated, use dynamic allocation.
[    0.202855] stm32f429-pinctrl soc:pinctrl@40020000: GPIOB bank added
[    0.203591] gpio gpiochip2: Static allocation of GPIO base is deprecated, use dynamic allocation.
[    0.205704] stm32f429-pinctrl soc:pinctrl@40020000: GPIOC bank added
[    0.206338] gpio gpiochip3: Static allocation of GPIO base is deprecated, use dynamic allocation.
[    0.208448] stm32f429-pinctrl soc:pinctrl@40020000: GPIOD bank added
[    0.209182] gpio gpiochip4: Static allocation of GPIO base is deprecated, use dynamic allocation.
[    0.211282] stm32f429-pinctrl soc:pinctrl@40020000: GPIOE bank added
[    0.212094] gpio gpiochip5: Static allocation of GPIO base is deprecated, use dynamic allocation.
[    0.214270] stm32f429-pinctrl soc:pinctrl@40020000: GPIOF bank added
[    0.215005] gpio gpiochip6: Static allocation of GPIO base is deprecated, use dynamic allocation.
[    0.217110] stm32f429-pinctrl soc:pinctrl@40020000: GPIOG bank added
[    0.217845] gpio gpiochip7: Static allocation of GPIO base is deprecated, use dynamic allocation.
[    0.219959] stm32f429-pinctrl soc:pinctrl@40020000: GPIOH bank added
[    0.220602] gpio gpiochip8: Static allocation of GPIO base is deprecated, use dynamic allocation.
[    0.222714] stm32f429-pinctrl soc:pinctrl@40020000: GPIOI bank added
[    0.223483] gpio gpiochip9: Static allocation of GPIO base is deprecated, use dynamic allocation.
[    0.225594] stm32f429-pinctrl soc:pinctrl@40020000: GPIOJ bank added
[    0.226336] gpio gpiochip10: Static allocation of GPIO base is deprecated, use dynamic allocation.
[    0.228490] stm32f429-pinctrl soc:pinctrl@40020000: GPIOK bank added

So let's follow the suggestion and use dynamic allocation.

Tested on STM32F429I-DISC1 board.

Signed-off-by: Dario Binacchi 
Link: https://lore.kernel.org/r/20230227205131.2104082-1-dario.binacchi@amarulasolutions.com
Signed-off-by: Linus Walleij

pinctrl: stm32: Fix refcount leak in stm32_pctrl_get_irq_domain

2023-01-09T14:13:15+00:00

of_irq_find_parent() returns a node pointer with refcount incremented,
We should use of_node_put() on it when not needed anymore.
Add missing of_node_put() to avoid refcount leak.

Fixes: d86f4d71e42a ("pinctrl: stm32: check irq controller availability at probe")
Signed-off-by: Miaoqian Lin 
Link: https://lore.kernel.org/r/20230102082503.3944927-1-linmq006@gmail.com
Signed-off-by: Linus Walleij

pinctrl: stm32: Remove check for pins-are-numbered

2022-12-03T09:18:55+00:00

Remove the check for the unnecessary pins-are-numbered
DeviceTree property

Signed-off-by: Bernhard Rosenkränzer 
Reviewed-by: Matthias Brugger 
Acked-by: Krzysztof Kozlowski 
Link: https://lore.kernel.org/r/20221129023401.278780-3-bero@baylibre.com
Signed-off-by: Linus Walleij

pinctrl: stm32: Add missing header(s)

2022-10-24T14:06:47+00:00

Do not imply that some of the generic headers may be always included.
Instead, include explicitly what we are direct user of.

While at it, sort headers alphabetically.

Signed-off-by: Andy Shevchenko

pinctrl: stm32: Switch to use dev_err_probe() helper

2022-09-20T09:16:42+00:00

In the probe path, dev_err() can be replace with dev_err_probe()
which will check if error code is -EPROBE_DEFER and prints the
error name.

Signed-off-by: Yang Yingliang 
Link: https://lore.kernel.org/r/20220917122015.1893880-1-yangyingliang@huawei.com
Signed-off-by: Linus Walleij

pinctrl: stm32: fix optional IRQ support to gpios

2022-06-28T14:12:40+00:00

To act as an interrupt controller, a gpio bank relies on the
"interrupt-parent" of the pin controller.
When this optional "interrupt-parent" misses, do not create any IRQ domain.

This fixes a "NULL pointer in stm32_gpio_domain_alloc()" kernel crash when
the interrupt-parent =  property is not declared in the Device Tree.

Fixes: 0eb9f683336d ("pinctrl: Add IRQ support to STM32 gpios")
Signed-off-by: Fabien Dessenne 
Link: https://lore.kernel.org/r/20220627142350.742973-1-fabien.dessenne@foss.st.com
Signed-off-by: Linus Walleij

pinctrl: stm32: Unshadow np variable in stm32_pctl_probe()

2022-05-13T23:13:42+00:00

The np variable is used globally for stm32_pctl_probe() and in one of
its code branches. cppcheck is not happy with that:

  pinctrl-stm32.c:1530:23: warning: Local variable 'np' shadows outer variable [shadowVariable]

Instead of simply renaming one of the variables convert some code to
use a device pointer directly.

Fixes: bb949ed9b16b ("pinctrl: stm32: Switch to use for_each_gpiochip_node() helper")
Reported-by: kernel test robot 
Signed-off-by: Andy Shevchenko 
Reviewed-by: Fabien Dessenne 
Link: https://lore.kernel.org/r/20220507102257.26414-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Linus Walleij