kernel.git/drivers/pinctrl/stm32, branch linux-6.3.y

pinctrl: stm32: use dynamic allocation of GPIO base

2023-03-06T14:20:28Z

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

2023-01-09T14:13:15Z

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

2022-12-03T09:18:55Z

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)

2022-10-24T14:06:47Z

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

2022-09-20T09:16:42Z

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

2022-06-28T14:12:40Z

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()

2022-05-13T23:13:42Z

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

pinctrl: stm32: Fix up errorpath after merge

2022-05-05T14:24:06Z

When merging the for_each_gpiochip_node() changes, I made some mistakes by not disabling the clocks on the errorpath, fix it up. Fixes: a0912083086d ("Merge tag 'intel-gpio-v5.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/andy/linux-gpio-intel into devel") Cc: Stephen Rothwell Cc: Fabien Dessenne Reported-by: Andy Shevchenko Signed-off-by: Linus Walleij

pinctrl: stm32: prevent the use of the secure protected pins

2022-05-04T22:04:04Z

The hardware denies any access from the Linux non-secure world to the secure-protected pins. Hence, prevent any driver to request such a pin. Mark the secure-protected GPIO lines as invalid (.init_valid_mask) and prevent the pinmux request / pinconf setting operations. Identify the secure pins with "NO ACCESS" in the pinconf sysfs. Signed-off-by: Fabien Dessenne Link: https://lore.kernel.org/r/20220502153114.283618-1-fabien.dessenne@foss.st.com Signed-off-by: Linus Walleij

pinctrl: stm32: improve debugfs information of pinconf-pins entry

2022-05-04T22:02:48Z

Print the name of the selected alternate function in addition to its number. Ex: "pin 135 (PI7): alternate 10 (SAI2_FS_A) - ..." Signed-off-by: Fabien Dessenne Signed-off-by: Alexandre Torgue Link: https://lore.kernel.org/r/20220502152524.283374-1-fabien.dessenne@foss.st.com Signed-off-by: Linus Walleij