linux.git/drivers/pinctrl/stm32, branch v6.17 Linux kernel source tree treewide: rename GPIO set callbacks back to their original names 2025-08-07T08:07:06+00:00 Bartosz Golaszewski bartosz.golaszewski@linaro.org 2025-07-17T13:21:26+00:00 d9d87d90cc0b10cd56ae353f50b11417e7d21712 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 <bartosz.golaszewski@linaro.org> 
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 <bartosz.golaszewski@linaro.org>
pinctrl: stm32: Introduce HDP driver 2025-07-14T15:50:58+00:00 Clément Le Goffic clement.legoffic@foss.st.com 2025-07-11T07:41:20+00:00 8eabf5ddbb08c2261de839a97c4257b79a15f60f This patch introduce the driver for the Hardware Debug Port available on STM32MP platforms. The HDP allows the observation of internal SoC signals by using multiplexers. Each HDP port can provide up to 16 internal signals (one of them can be software controlled as a GPO). Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Clément Le Goffic <clement.legoffic@foss.st.com> Link: https://lore.kernel.org/20250711-hdp-upstream-v7-2-faeecf7aaee1@foss.st.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org> 
This patch introduce the driver for the Hardware Debug Port available on
STM32MP platforms. The HDP allows the observation of internal SoC
signals by using multiplexers. Each HDP port can provide up to 16
internal signals (one of them can be software controlled as a GPO).

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Clément Le Goffic <clement.legoffic@foss.st.com>
Link: https://lore.kernel.org/20250711-hdp-upstream-v7-2-faeecf7aaee1@foss.st.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
pinctrl: stm32: Handle RSVD pin configuration 2025-06-18T09:23:57+00:00 Fabien Dessenne fabien.dessenne@foss.st.com 2025-06-10T15:23:05+00:00 a88ca6deca4f19c95811433aa23bab7b74d182bb When a pin is assigned to a coprocessor not running Linux, the pin should be flagged in the DT as reserved and not usable by Linux. Add pin configuration RSVD (Reserved) and instrument the driver to not update the mux setting. Signed-off-by: Fabien Dessenne <fabien.dessenne@foss.st.com> Signed-off-by: Antonio Borneo <antonio.borneo@foss.st.com> Link: https://lore.kernel.org/20250610152309.299438-2-antonio.borneo@foss.st.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org> 
When a pin is assigned to a coprocessor not running Linux, the pin
should be flagged in the DT as reserved and not usable by Linux.

Add pin configuration RSVD (Reserved) and instrument the driver to
not update the mux setting.

Signed-off-by: Fabien Dessenne <fabien.dessenne@foss.st.com>
Signed-off-by: Antonio Borneo <antonio.borneo@foss.st.com>
Link: https://lore.kernel.org/20250610152309.299438-2-antonio.borneo@foss.st.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
pinctrl: stm32: Allow compile as module for stm32mp257 2025-06-18T09:20:11+00:00 Stephane Danieau stephane.danieau@foss.st.com 2025-06-10T14:30:41+00:00 dba0aff2b89bd106601ed88dfda44fdd3218eb53 Add ability to build pinctrl for stm32mp257 as a kernel module. Add kernel-doc to the exported symbols. Signed-off-by: Stephane Danieau <stephane.danieau@foss.st.com> Signed-off-by: Antonio Borneo <antonio.borneo@foss.st.com> Link: https://lore.kernel.org/20250610143042.295376-5-antonio.borneo@foss.st.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org> 
Add ability to build pinctrl for stm32mp257 as a kernel module.
Add kernel-doc to the exported symbols.

Signed-off-by: Stephane Danieau <stephane.danieau@foss.st.com>
Signed-off-by: Antonio Borneo <antonio.borneo@foss.st.com>
Link: https://lore.kernel.org/20250610143042.295376-5-antonio.borneo@foss.st.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
pinctrl: stm32: Add RIF support for stm32mp257 2025-06-18T09:20:11+00:00 Antonio Borneo antonio.borneo@foss.st.com 2025-06-10T14:30:40+00:00 d6c8fceb33d9cc983a5d050f9c3714fe15a51279 On SoC stm32mp257, GPIO supports security and isolation compliant with the Resource Isolation Framework (RIF). Each GPIO line can be assigned to different security and compartment domains. Add the generic code to handle the RIF configuration set by the secure world and initialize the GPIO valid mask accordingly. Enable the RIF support for stm32mp257. Co-developed-by: Gatien Chevallier <gatien.chevallier@foss.st.com> Signed-off-by: Gatien Chevallier <gatien.chevallier@foss.st.com> Signed-off-by: Antonio Borneo <antonio.borneo@foss.st.com> Link: https://lore.kernel.org/20250610143042.295376-4-antonio.borneo@foss.st.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org> 
On SoC stm32mp257, GPIO supports security and isolation compliant
with the Resource Isolation Framework (RIF). Each GPIO line can be
assigned to different security and compartment domains.

Add the generic code to handle the RIF configuration set by the
secure world and initialize the GPIO valid mask accordingly.

Enable the RIF support for stm32mp257.

Co-developed-by: Gatien Chevallier <gatien.chevallier@foss.st.com>
Signed-off-by: Gatien Chevallier <gatien.chevallier@foss.st.com>
Signed-off-by: Antonio Borneo <antonio.borneo@foss.st.com>
Link: https://lore.kernel.org/20250610143042.295376-4-antonio.borneo@foss.st.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
pinctrl: stm32: Manage irq affinity settings 2025-06-18T09:20:11+00:00 Cheick Traore cheick.traore@foss.st.com 2025-06-10T14:30:39+00:00 4c5cc2f65386e22166ce006efe515c667aa075e4 Trying to set the affinity of the interrupts associated to stm32 pinctrl results in a write error. Fill struct irq_chip::irq_set_affinity to use the default helper function. Signed-off-by: Cheick Traore <cheick.traore@foss.st.com> Signed-off-by: Antonio Borneo <antonio.borneo@foss.st.com> Link: https://lore.kernel.org/20250610143042.295376-3-antonio.borneo@foss.st.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org> 
Trying to set the affinity of the interrupts associated to stm32
pinctrl results in a write error.

Fill struct irq_chip::irq_set_affinity to use the default helper
function.

Signed-off-by: Cheick Traore <cheick.traore@foss.st.com>
Signed-off-by: Antonio Borneo <antonio.borneo@foss.st.com>
Link: https://lore.kernel.org/20250610143042.295376-3-antonio.borneo@foss.st.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
pinctrl: stm32: Declare stm32_pmx_get_mode() as static 2025-06-18T09:20:10+00:00 Antonio Borneo antonio.borneo@foss.st.com 2025-06-10T14:30:38+00:00 9b71efc450fdd2f70d59917025da34f8b0e81135 The commit acaa037970f6 ("pinctrl: stm32: Implement .get_direction gpio_chip callback") exported the function stm32_pmx_get_mode() and the struct stm32_gpio_bank, but these were never used outside the file that defines them. Declare the function as static, drop it from the include file and drop also the struct, not anymore visible outside the file. Signed-off-by: Antonio Borneo <antonio.borneo@foss.st.com> Link: https://lore.kernel.org/20250610143042.295376-2-antonio.borneo@foss.st.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org> 
The commit acaa037970f6 ("pinctrl: stm32: Implement .get_direction
gpio_chip callback") exported the function stm32_pmx_get_mode()
and the struct stm32_gpio_bank, but these were never used outside
the file that defines them.

Declare the function as static, drop it from the include file and
drop also the struct, not anymore visible outside the file.

Signed-off-by: Antonio Borneo <antonio.borneo@foss.st.com>
Link: https://lore.kernel.org/20250610143042.295376-2-antonio.borneo@foss.st.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
pinctrl: stm32: use new GPIO line value setter callbacks 2025-04-29T08:34:45+00:00 Bartosz Golaszewski bartosz.golaszewski@linaro.org 2025-04-24T08:35:28+00:00 43c8981b02cd4921dd3b02710a126b11aa94c497 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 <bartosz.golaszewski@linaro.org> Reviewed-by: Antonio Borneo <antonio.borneo@foss.st.com> Link: https://lore.kernel.org/20250424-gpiochip-set-rv-pinctrl-part2-v1-5-504f91120b99@linaro.org Signed-off-by: Linus Walleij <linus.walleij@linaro.org> 
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 <bartosz.golaszewski@linaro.org>
Reviewed-by: Antonio Borneo <antonio.borneo@foss.st.com>
Link: https://lore.kernel.org/20250424-gpiochip-set-rv-pinctrl-part2-v1-5-504f91120b99@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
pinctrl: Use str_enable_disable-like helpers 2025-01-15T11:52:26+00:00 Krzysztof Kozlowski krzysztof.kozlowski@linaro.org 2025-01-14T20:36:02+00:00 3f36bffab9e324873333304a0fd6c5ec8c9a10fc Replace ternary (condition ? "enable" : "disable") syntax with helpers from string_choices.h because: 1. Simple function call with one argument is easier to read. Ternary operator has three arguments and with wrapping might lead to quite long code. 2. Is slightly shorter thus also easier to read. 3. It brings uniformity in the text - same string. 4. Allows deduping by the linker, which results in a smaller binary file. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com> Reviewed-by: Antonio Borneo <antonio.borneo@foss.st.com> Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com> Link: https://lore.kernel.org/20250114203602.1013275-1-krzysztof.kozlowski@linaro.org Signed-off-by: Linus Walleij <linus.walleij@linaro.org> 
Replace ternary (condition ? "enable" : "disable") syntax with helpers
from string_choices.h because:
1. Simple function call with one argument is easier to read.  Ternary
   operator has three arguments and with wrapping might lead to quite
   long code.
2. Is slightly shorter thus also easier to read.
3. It brings uniformity in the text - same string.
4. Allows deduping by the linker, which results in a smaller binary
   file.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Reviewed-by: Antonio Borneo <antonio.borneo@foss.st.com>
Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/20250114203602.1013275-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
pinctrl: stm32: Add check for clk_enable() 2025-01-14T12:37:26+00:00 Mingwei Zheng zmw12306@gmail.com 2025-01-06T22:06:59+00:00 451bc9aea9a1a6fe53969e81a5cb1bd785c0d989 Convert the driver to clk_bulk*() API. Add check for the return value of clk_bulk_enable() to catch the potential error. Fixes: 05d8af449d93 ("pinctrl: stm32: Keep pinctrl block clock enabled when LEVEL IRQ requested") Signed-off-by: Mingwei Zheng <zmw12306@gmail.com> Signed-off-by: Jiasheng Jiang <jiashengjiangcool@gmail.com> Reviewed-by: Antonio Borneo <antonio.borneo@foss.st.com> Link: https://lore.kernel.org/20250106220659.2640365-1-zmw12306@gmail.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org> 
Convert the driver to clk_bulk*() API.
Add check for the return value of clk_bulk_enable() to catch
the potential error.

Fixes: 05d8af449d93 ("pinctrl: stm32: Keep pinctrl block clock enabled when LEVEL IRQ requested")
Signed-off-by: Mingwei Zheng <zmw12306@gmail.com>
Signed-off-by: Jiasheng Jiang <jiashengjiangcool@gmail.com>
Reviewed-by: Antonio Borneo <antonio.borneo@foss.st.com>
Link: https://lore.kernel.org/20250106220659.2640365-1-zmw12306@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>