kernel/linux.git/drivers/pinctrl/bcm, branch v6.18.21

pinctrl: generic: rename PIN_CONFIG_OUTPUT to LEVEL

2025-09-08T12:24:20+00:00

This generic pin config property is confusingly named so let's rename it to make things clearer. There are already drivers in the tree that use PIN_CONFIG_OUTPUT to *read* the value of an output driven pin, which is a big semantic confusion for the head: are we then reading the setting of the output or the actual value/level that is put out on the pin? We already have PIN_CONFIG_OUTPUT_ENABLE that turns on driver buffers for output, so this can by logical conclusion only drive the voltage level if it should be any different. But if we read the pin, are we then reading the *setting* of the output value or the *actual* value we can see on the line? If the pin has not first been set into output mode with PIN_CONFIG_OUTPUT_ENABLE, but is instead in some input mode or tristate, what will reading this property actually return? Reading the current users reading this property it is clear that what we read is the logical level of the pin as 0 or 1 depending on if it is low or high. Rename it to PIN_CONFIG_LEVEL so it is crystal clear that we set or read the voltage level of the pin and nothing else. Acked-by: Sudeep Holla Signed-off-by: Linus Walleij

pinctrl: bcm: Add STB family pin controller driver

2025-09-08T12:23:42+00:00

This driver provide pin muxing and configuration functionality for BCM2712 SoC used by RPi5. According to [1] this chip is an instance of the one used in Broadcom STB product line. [1] https://lore.kernel.org/lkml/f6601f73-cb22-4ba3-88c5-241be8421fc3@broadcom.com/ Cc: Jonathan Bell Cc: Phil Elwell Signed-off-by: Ivan T. Ivanov Reviewed-by: Phil Elwell Signed-off-by: Andrea della Porta [linusw: Enable also for ARCH_BCM2835] Signed-off-by: Linus Walleij

pinctrl: bcm: use PTR_ERR_OR_ZERO() to simplify code

2025-08-19T10:14:15+00:00

Use the standard error pointer macro to shorten the code and simplify. Signed-off-by: Xichao Zhao Link: https://lore.kernel.org/20250812081243.22659-1-zhao.xichao@vivo.com Signed-off-by: Linus Walleij

treewide: rename GPIO set callbacks back to their original names

2025-08-07T08:07:06+00:00

The conversion of all GPIO drivers to using the .set_rv() and .set_multiple_rv() callbacks from struct gpio_chip (which - unlike their predecessors - return an integer and allow the controller drivers to indicate failures to users) is now complete and the legacy ones have been removed. Rename the new callbacks back to their original names in one sweeping change. Signed-off-by: Bartosz Golaszewski

pinctrl: bcm: cygnus-nsp: Move fixed assignments to 'pinctrl_desc' definition

2025-06-18T11:26:36+00:00

Assign 'struct pinctrl_desc' .npins member in definition to make clear that number of pins is fixed and have less code in the probe. Reviewed-by: Florian Fainelli Signed-off-by: Krzysztof Kozlowski Link: https://lore.kernel.org/20250611-pinctrl-const-desc-v2-10-b11c1d650384@linaro.org Signed-off-by: Linus Walleij

pinctrl: bcm: cygnus-ns2: Move fixed assignments to 'pinctrl_desc' definition

2025-06-18T11:26:36+00:00

Assign 'struct pinctrl_desc' .npins member in definition to make clear that number of pins is fixed and have less code in the probe. Reviewed-by: Florian Fainelli Signed-off-by: Krzysztof Kozlowski Link: https://lore.kernel.org/20250611-pinctrl-const-desc-v2-9-b11c1d650384@linaro.org Signed-off-by: Linus Walleij

pinctrl: bcm: cygnus-mux: Move fixed assignments to 'pinctrl_desc' definition

2025-06-18T11:26:36+00:00

Assign 'struct pinctrl_desc' .npins member in definition to make clear that number of pins is fixed and have less code in the probe. Reviewed-by: Florian Fainelli Signed-off-by: Krzysztof Kozlowski Link: https://lore.kernel.org/20250611-pinctrl-const-desc-v2-8-b11c1d650384@linaro.org Signed-off-by: Linus Walleij

pinctrl: bcm: Constify static 'pinctrl_desc'

2025-06-18T11:26:36+00:00

The local static 'struct pinctrl_desc' is not modified, so can be made const for code safety. Reviewed-by: Florian Fainelli Signed-off-by: Krzysztof Kozlowski Link: https://lore.kernel.org/20250611-pinctrl-const-desc-v2-7-b11c1d650384@linaro.org Signed-off-by: Linus Walleij

pinctrl: bcm2835: use new GPIO line value setter callbacks

2025-05-09T08:05:52+00:00

struct gpio_chip now has callbacks for setting line values that return an integer, allowing to indicate failures. Convert the driver to using them. Signed-off-by: Bartosz Golaszewski Link: https://lore.kernel.org/20250425-gpiochip-set-rv-pinctrl-bcm-v1-3-6b8883d79b66@linaro.org Signed-off-by: Linus Walleij

pinctrl: bcm: iproc-gpio: use new GPIO line value setter callbacks

2025-05-09T08:05:52+00:00

struct gpio_chip now has callbacks for setting line values that return an integer, allowing to indicate failures. Convert the driver to using them. Signed-off-by: Bartosz Golaszewski Link: https://lore.kernel.org/20250425-gpiochip-set-rv-pinctrl-bcm-v1-2-6b8883d79b66@linaro.org Signed-off-by: Linus Walleij