From cf9610f9116d55c5a66ef9f1faecacabd93a9322 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Mon, 24 Aug 2026 08:46:03 -0700 Subject: Merge tag 'pinctrl-v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl Pull pin control updates from Linus Walleij: "Core changes: - Use the non-blocking mux_state_try_select() in the generic MUX pin control back-end - Free pin maps on pinctrl_generic_to_map() failure in the core helpers New hardware pin control: - Qualcomm Maili TLMM SoC, PMG1110 PMIC, and Eliza LPASS LPI TLMM SoC (this is for the low power audio, LPASS = Low Power Audio SubSystem portions) - Upboard support on top of the Intel pin controller - Apple T6030 and T6031 support (just compatible strings) - Samsung Exynos 8855 SoC - Mediatek MT6858 SoC - Rockchip RK3308B and RV1106 SoCs - Airoha EN7523 and AN7563 SoCs Improvements: - Qualcomm TLMM GPIOs are unconditionally marked as wakeup capable - Qualcomm improvements on top of the Qualcomm PDC (power domain controller) irqchip improvements from tglx:s tree - Qualcomm IPQ806x and IPQ9650 non-urgent pin grop fixups - The NPCM8xx driver has been put into shape fixing many pin and group definitions - Some non-urgent Tegra 264 pin assignments are fixed up - Some non-urgent fixups to Airoha AN7581 and AN7583 registers and pin assignments, missing features etc" * tag 'pinctrl-v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (130 commits) dt-bindings: pinctrl: Convert TI DA850 pupd to DT schema pinctrl: meson: sync some modify from A4 pinctrl: meson: a4: Add input enable pin configuration pinctrl: realtek: rtd1625: remove unused group name spdif_sel pinctrl: realtek: rtd1625: fix base_bit for VE4 GPIO 13 dt-bindings: pinctrl: microchip,pic32mzda-pinctrl: Convert to DT schema Revert "Merge branch 'ib-rsk7204' into devel" pinctrl: rockchip: Add RV1106 pinctrl support dt-bindings: pinctrl: rockchip: Add RV1106 compatible pinctrl: rockchip: Decode drive strength in the get function pinctrl: fix PINCTRL_GENERIC_MUX not always being selectable pinctrl: airoha: add support of an7563 SoC dt-bindings: pinctrl: airoha: add support of an7563 pin controller pinctrl: airoha: try to find chip scu node by phandle first pinctrl: airoha: add support of en7523 SoC dt-bindings: pinctrl: airoha: add support of en7523 pin controller pinctrl: airoha: an7583: add support for olt pinmux pinctrl: airoha: an7583: add support for pon_alt pinmux pinctrl: airoha: an7583: add support for npu_uart pinmux dt-bindings: pinctrl: airoha: an7583: add missed features ... --- samples/binderfs/.gitignore | 2 + samples/binderfs/Makefile | 4 ++ samples/binderfs/binderfs_example.c | 82 +++++++++++++++++++++++++++++++++++++ 3 files changed, 88 insertions(+) create mode 100644 samples/binderfs/.gitignore create mode 100644 samples/binderfs/Makefile create mode 100644 samples/binderfs/binderfs_example.c (limited to 'samples/binderfs') diff --git a/samples/binderfs/.gitignore b/samples/binderfs/.gitignore new file mode 100644 index 000000000..8fa415a36 --- /dev/null +++ b/samples/binderfs/.gitignore @@ -0,0 +1,2 @@ +# SPDX-License-Identifier: GPL-2.0 +/binderfs_example diff --git a/samples/binderfs/Makefile b/samples/binderfs/Makefile new file mode 100644 index 000000000..629e43b9b --- /dev/null +++ b/samples/binderfs/Makefile @@ -0,0 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only +userprogs-always-y += binderfs_example + +userccflags += -I usr/include diff --git a/samples/binderfs/binderfs_example.c b/samples/binderfs/binderfs_example.c new file mode 100644 index 000000000..0fd92cdda --- /dev/null +++ b/samples/binderfs/binderfs_example.c @@ -0,0 +1,82 @@ +// SPDX-License-Identifier: GPL-2.0 + +#define _GNU_SOURCE +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +int main(int argc, char *argv[]) +{ + int fd, ret, saved_errno; + struct binderfs_device device = { 0 }; + + ret = unshare(CLONE_NEWNS); + if (ret < 0) { + fprintf(stderr, "%s - Failed to unshare mount namespace\n", + strerror(errno)); + exit(EXIT_FAILURE); + } + + ret = mount(NULL, "/", NULL, MS_REC | MS_PRIVATE, 0); + if (ret < 0) { + fprintf(stderr, "%s - Failed to mount / as private\n", + strerror(errno)); + exit(EXIT_FAILURE); + } + + ret = mkdir("/dev/binderfs", 0755); + if (ret < 0 && errno != EEXIST) { + fprintf(stderr, "%s - Failed to create binderfs mountpoint\n", + strerror(errno)); + exit(EXIT_FAILURE); + } + + ret = mount(NULL, "/dev/binderfs", "binder", 0, 0); + if (ret < 0) { + fprintf(stderr, "%s - Failed to mount binderfs\n", + strerror(errno)); + exit(EXIT_FAILURE); + } + + memcpy(device.name, "my-binder", strlen("my-binder")); + + fd = open("/dev/binderfs/binder-control", O_RDONLY | O_CLOEXEC); + if (fd < 0) { + fprintf(stderr, "%s - Failed to open binder-control device\n", + strerror(errno)); + exit(EXIT_FAILURE); + } + + ret = ioctl(fd, BINDER_CTL_ADD, &device); + saved_errno = errno; + close(fd); + errno = saved_errno; + if (ret < 0) { + fprintf(stderr, "%s - Failed to allocate new binder device\n", + strerror(errno)); + exit(EXIT_FAILURE); + } + + printf("Allocated new binder device with major %d, minor %d, and name %s\n", + device.major, device.minor, device.name); + + ret = unlink("/dev/binderfs/my-binder"); + if (ret < 0) { + fprintf(stderr, "%s - Failed to delete binder device\n", + strerror(errno)); + exit(EXIT_FAILURE); + } + + /* Cleanup happens when the mount namespace dies. */ + exit(EXIT_SUCCESS); +} -- cgit v1.3.1