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 ... --- drivers/acpi/proc.c | 143 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 143 insertions(+) create mode 100644 drivers/acpi/proc.c (limited to 'drivers/acpi/proc.c') diff --git a/drivers/acpi/proc.c b/drivers/acpi/proc.c new file mode 100644 index 000000000..c08ead072 --- /dev/null +++ b/drivers/acpi/proc.c @@ -0,0 +1,143 @@ +// SPDX-License-Identifier: GPL-2.0 +#include +#include +#include +#include +#include +#include +#include + +#include "sleep.h" +#include "internal.h" + +/* + * this file provides support for: + * /proc/acpi/wakeup + */ + +static int +acpi_system_wakeup_device_seq_show(struct seq_file *seq, void *offset) +{ + struct acpi_device *dev, *tmp; + + seq_printf(seq, "Device\tS-state\t Status Sysfs node\n"); + + mutex_lock(&acpi_device_lock); + list_for_each_entry_safe(dev, tmp, &acpi_wakeup_device_list, + wakeup_list) { + struct acpi_device_physical_node *entry; + + if (!dev->wakeup.flags.valid) + continue; + + seq_printf(seq, "%s\t S%llu\t", + dev->pnp.bus_id, + dev->wakeup.sleep_state); + + mutex_lock(&dev->physical_node_lock); + + if (!dev->physical_node_count) { + seq_printf(seq, "%c%-8s\n", + dev->wakeup.flags.valid ? '*' : ' ', + str_enabled_disabled(device_may_wakeup(&dev->dev))); + } else { + struct device *ldev; + list_for_each_entry(entry, &dev->physical_node_list, + node) { + ldev = get_device(entry->dev); + if (!ldev) + continue; + + if (&entry->node != + dev->physical_node_list.next) + seq_printf(seq, "\t\t"); + + seq_printf(seq, "%c%-8s %s:%s\n", + dev->wakeup.flags.valid ? '*' : ' ', + str_enabled_disabled(device_may_wakeup(ldev) || + device_may_wakeup(&dev->dev)), + ldev->bus ? ldev->bus->name : + "no-bus", dev_name(ldev)); + put_device(ldev); + } + } + + mutex_unlock(&dev->physical_node_lock); + } + mutex_unlock(&acpi_device_lock); + return 0; +} + +static void physical_device_enable_wakeup(struct acpi_device *adev) +{ + struct acpi_device_physical_node *entry; + + mutex_lock(&adev->physical_node_lock); + + list_for_each_entry(entry, + &adev->physical_node_list, node) + if (entry->dev && device_can_wakeup(entry->dev)) { + bool enable = !device_may_wakeup(entry->dev); + device_set_wakeup_enable(entry->dev, enable); + } + + mutex_unlock(&adev->physical_node_lock); +} + +static ssize_t +acpi_system_write_wakeup_device(struct file *file, + const char __user * buffer, + size_t count, loff_t * ppos) +{ + struct acpi_device *dev, *tmp; + char strbuf[5]; + char str[5] = ""; + + if (count > 4) + count = 4; + + if (copy_from_user(strbuf, buffer, count)) + return -EFAULT; + strbuf[count] = '\0'; + sscanf(strbuf, "%s", str); + + mutex_lock(&acpi_device_lock); + list_for_each_entry_safe(dev, tmp, &acpi_wakeup_device_list, + wakeup_list) { + if (!dev->wakeup.flags.valid) + continue; + + if (!strncmp(dev->pnp.bus_id, str, 4)) { + if (device_can_wakeup(&dev->dev)) { + bool enable = !device_may_wakeup(&dev->dev); + device_set_wakeup_enable(&dev->dev, enable); + } else { + physical_device_enable_wakeup(dev); + } + break; + } + } + mutex_unlock(&acpi_device_lock); + return count; +} + +static int +acpi_system_wakeup_device_open_fs(struct inode *inode, struct file *file) +{ + return single_open(file, acpi_system_wakeup_device_seq_show, + pde_data(inode)); +} + +static const struct proc_ops acpi_system_wakeup_device_proc_ops = { + .proc_open = acpi_system_wakeup_device_open_fs, + .proc_read = seq_read, + .proc_write = acpi_system_write_wakeup_device, + .proc_lseek = seq_lseek, + .proc_release = single_release, +}; + +void __init acpi_sleep_proc_init(void) +{ + /* 'wakeup device' [R/W] */ + proc_create("wakeup", 0644, acpi_root_dir, &acpi_system_wakeup_device_proc_ops); +} -- cgit v1.3.1