kernel/drivers/pinctrl/sunxi, branch master

pinctrl: sunxi: Implement gpiochip::get_direction()

2026-02-24T09:51:53Z

After commit 471e998c0e31 ("gpiolib: remove redundant callback check"), a warning will be printed if the gpio driver does not implement this callback. The warning was added in commit e623c4303ed1 ("gpiolib: sanitize the return value of gpio_chip::get_direction()"), but was masked by the "redundant" check. The warning can be triggered by any action that calls the callback, such as dumping the GPIO state from /sys/kernel/debug/gpio. Implement it for the sunxi driver. This is simply a matter of reading out the mux value from the registers, then checking if it is one of the GPIO functions and which direction it is. Signed-off-by: Chen-Yu Tsai Reviewed-by: Jernej Skrabec Reviewed-by: Bartosz Golaszewski Reviewed-by: Andre Przywara Signed-off-by: Linus Walleij

Convert more 'alloc_obj' cases to default GFP_KERNEL arguments

2026-02-22T04:03:00Z

This converts some of the visually simpler cases that have been split over multiple lines. I only did the ones that are easy to verify the resulting diff by having just that final GFP_KERNEL argument on the next line. Somebody should probably do a proper coccinelle script for this, but for me the trivial script actually resulted in an assertion failure in the middle of the script. I probably had made it a bit _too_ trivial. So after fighting that far a while I decided to just do some of the syntactically simpler cases with variations of the previous 'sed' scripts. The more syntactically complex multi-line cases would mostly really want whitespace cleanup anyway. Signed-off-by: Linus Torvalds

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-22T01:09:51Z

This was done entirely with mindless brute force, using git grep -l '\

treewide: Replace kmalloc with kmalloc_obj for non-scalar types

2026-02-21T09:02:28Z

This is the result of running the Coccinelle script from scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to avoid scalar types (which need careful case-by-case checking), and instead replace kmalloc-family calls that allocate struct or union object instances: Single allocations: kmalloc(sizeof(TYPE), ...) are replaced with: kmalloc_obj(TYPE, ...) Array allocations: kmalloc_array(COUNT, sizeof(TYPE), ...) are replaced with: kmalloc_objs(TYPE, COUNT, ...) Flex array allocations: kmalloc(struct_size(PTR, FAM, COUNT), ...) are replaced with: kmalloc_flex(*PTR, FAM, COUNT, ...) (where TYPE may also be *VAR) The resulting allocations no longer return "void *", instead returning "TYPE *". Signed-off-by: Kees Cook

pinctrl: Simplify printks with pOF format

2025-09-12T12:19:31Z

Print full device node name with %pOF format, so the code will be a bit simpler. Signed-off-by: Krzysztof Kozlowski Signed-off-by: Linus Walleij

pinctrl: sunxi: use kcalloc() instead of kzalloc()

2025-08-21T11:28:50Z

Use devm_kcalloc() in init_pins_table() and prepare_function_table() to gain built-in overflow protection, making memory allocation safer when calculating allocation size compared to explicit multiplication. Signed-off-by: Qianfeng Rong Acked-by: Chen-Yu Tsai Link: https://lore.kernel.org/20250819143935.372084-5-rongqianfeng@vivo.com Signed-off-by: Linus Walleij

treewide: rename GPIO set callbacks back to their original names

2025-08-07T08:07:06Z

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

Merge tag 'pinctrl-v6.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

2025-08-02T19:07:09Z

Pull pin control updates from Linus Walleij: "Nothing stands out, apart from maybe the interesting Eswin EIC7700, a RISC-V SoC I've never seen before. Core changes: - Open code PINCTRL_FUNCTION_DESC() instead of defining a complex macro only used in one place - Add pinmux_generic_add_pinfunction() helper and use this in a few drivers New drivers: - Amlogic S7, S7D and S6 pin control support - Eswin EIC7700 pin control support - Qualcomm PMIV0104, PM7550 and Milos pin control support Because of unhelpful numbering schemes, the Qualcomm driver now needs to start to rely on SoC codenames - STM32 HDP pin control support - Mediatek MT8189 pin control support Improvements: - Switch remaining pin control drivers over to the new GPIO set callback that provides a return value - Support RSVD (reserved) pins in the STM32 driver - Move many fixed assignments over to pinctrl_desc definitions - Handle multiple TLMM regions in the Qualcomm driver" * tag 'pinctrl-v6.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (105 commits) pinctrl: mediatek: Add pinctrl driver for mt8189 dt-bindings: pinctrl: mediatek: Add support for mt8189 pinctrl: aspeed-g6: Add PCIe RC PERST pin group pinctrl: ingenic: use pinmux_generic_add_pinfunction() pinctrl: keembay: use pinmux_generic_add_pinfunction() pinctrl: mediatek: moore: use pinmux_generic_add_pinfunction() pinctrl: airoha: use pinmux_generic_add_pinfunction() pinctrl: equilibrium: use pinmux_generic_add_pinfunction() pinctrl: provide pinmux_generic_add_pinfunction() pinctrl: pinmux: open-code PINCTRL_FUNCTION_DESC() pinctrl: ma35: use new GPIO line value setter callbacks MAINTAINERS: add Clément Le Goffic as STM32 HDP maintainer pinctrl: stm32: Introduce HDP driver dt-bindings: pinctrl: stm32: Introduce HDP pinctrl: qcom: Add Milos pinctrl driver dt-bindings: pinctrl: document the Milos Top Level Mode Multiplexer pinctrl: qcom: spmi: Add PM7550 dt-bindings: pinctrl: qcom,pmic-gpio: Add PM7550 support pinctrl: qcom: spmi: Add PMIV0104 dt-bindings: pinctrl: qcom,pmic-gpio: Add PMIV0104 support ...

pinctrl: sunxi: v3s: Fix wrong comment about UART2 pinmux

2025-07-04T08:00:35Z

The original comment doesn't match the pin attribution, probably due to a hasty copy/paste. Signed-off-by: Paul Kocialkowski Reviewed-by: Icenowy Zheng Link: https://lore.kernel.org/20250701201124.812882-2-paulk@sys-base.io Signed-off-by: Linus Walleij

pinctrl: sunxi: Fix memory leak on krealloc failure

2025-06-24T19:17:01Z

In sunxi_pctrl_dt_node_to_map(), when krealloc() fails to resize the pinctrl_map array, the function returns -ENOMEM directly without freeing the previously allocated *map buffer. This results in a memory leak of the original kmalloc_array allocation. Fixes: e11dee2e98f8 ("pinctrl: sunxi: Deal with configless pins") Signed-off-by: Yuan Chen Link: https://lore.kernel.org/20250620012708.16709-1-chenyuan_fl@163.com Signed-off-by: Linus Walleij