diff options
Diffstat (limited to 'drivers/misc')
-rw-r--r-- | drivers/misc/eeprom/at24.c | 72 | ||||
-rw-r--r-- | drivers/misc/ocxl/Kconfig | 1 | ||||
-rw-r--r-- | drivers/misc/sgi-gru/gruprocfs.c | 42 |
3 files changed, 73 insertions, 42 deletions
diff --git a/drivers/misc/eeprom/at24.c b/drivers/misc/eeprom/at24.c index 0681d5fdd538..031eb64549af 100644 --- a/drivers/misc/eeprom/at24.c +++ b/drivers/misc/eeprom/at24.c @@ -1,4 +1,4 @@ -// SPDX-License-Identifier: GPL-2.0+ +// SPDX-License-Identifier: GPL-2.0-or-later /* * at24.c - handle most I2C EEPROMs * @@ -6,23 +6,23 @@ * Copyright (C) 2008 Wolfram Sang, Pengutronix */ -#include <linux/kernel.h> +#include <linux/acpi.h> +#include <linux/bitops.h> +#include <linux/delay.h> +#include <linux/i2c.h> #include <linux/init.h> +#include <linux/jiffies.h> +#include <linux/kernel.h> +#include <linux/mod_devicetable.h> #include <linux/module.h> -#include <linux/of_device.h> -#include <linux/slab.h> -#include <linux/delay.h> #include <linux/mutex.h> -#include <linux/mod_devicetable.h> -#include <linux/bitops.h> -#include <linux/jiffies.h> -#include <linux/property.h> -#include <linux/acpi.h> -#include <linux/i2c.h> #include <linux/nvmem-provider.h> -#include <linux/regmap.h> +#include <linux/of_device.h> #include <linux/pm_runtime.h> -#include <linux/gpio/consumer.h> +#include <linux/property.h> +#include <linux/regmap.h> +#include <linux/regulator/consumer.h> +#include <linux/slab.h> /* Address pointer is 16 bit. */ #define AT24_FLAG_ADDR16 BIT(7) @@ -88,8 +88,7 @@ struct at24_data { u8 flags; struct nvmem_device *nvmem; - - struct gpio_desc *wp_gpio; + struct regulator *vcc_reg; /* * Some chips tie up multiple I2C addresses; dummy devices reserve @@ -457,12 +456,10 @@ static int at24_write(void *priv, unsigned int off, void *val, size_t count) * from this host, but not from other I2C masters. */ mutex_lock(&at24->lock); - gpiod_set_value_cansleep(at24->wp_gpio, 0); while (count) { ret = at24_regmap_write(at24, buf, off, count); if (ret < 0) { - gpiod_set_value_cansleep(at24->wp_gpio, 1); mutex_unlock(&at24->lock); pm_runtime_put(dev); return ret; @@ -472,7 +469,6 @@ static int at24_write(void *priv, unsigned int off, void *val, size_t count) count -= ret; } - gpiod_set_value_cansleep(at24->wp_gpio, 1); mutex_unlock(&at24->lock); pm_runtime_put(dev); @@ -662,9 +658,9 @@ static int at24_probe(struct i2c_client *client) at24->client[0].client = client; at24->client[0].regmap = regmap; - at24->wp_gpio = devm_gpiod_get_optional(dev, "wp", GPIOD_OUT_HIGH); - if (IS_ERR(at24->wp_gpio)) - return PTR_ERR(at24->wp_gpio); + at24->vcc_reg = devm_regulator_get(dev, "vcc"); + if (IS_ERR(at24->vcc_reg)) + return PTR_ERR(at24->vcc_reg); writable = !(flags & AT24_FLAG_READONLY); if (writable) { @@ -701,6 +697,12 @@ static int at24_probe(struct i2c_client *client) i2c_set_clientdata(client, at24); + err = regulator_enable(at24->vcc_reg); + if (err) { + dev_err(dev, "Failed to enable vcc regulator\n"); + return err; + } + /* enable runtime pm */ pm_runtime_set_active(dev); pm_runtime_enable(dev); @@ -713,6 +715,7 @@ static int at24_probe(struct i2c_client *client) pm_runtime_idle(dev); if (err) { pm_runtime_disable(dev); + regulator_disable(at24->vcc_reg); return -ENODEV; } @@ -728,15 +731,42 @@ static int at24_probe(struct i2c_client *client) static int at24_remove(struct i2c_client *client) { + struct at24_data *at24 = i2c_get_clientdata(client); + pm_runtime_disable(&client->dev); + if (!pm_runtime_status_suspended(&client->dev)) + regulator_disable(at24->vcc_reg); pm_runtime_set_suspended(&client->dev); return 0; } +static int __maybe_unused at24_suspend(struct device *dev) +{ + struct i2c_client *client = to_i2c_client(dev); + struct at24_data *at24 = i2c_get_clientdata(client); + + return regulator_disable(at24->vcc_reg); +} + +static int __maybe_unused at24_resume(struct device *dev) +{ + struct i2c_client *client = to_i2c_client(dev); + struct at24_data *at24 = i2c_get_clientdata(client); + + return regulator_enable(at24->vcc_reg); +} + +static const struct dev_pm_ops at24_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, + pm_runtime_force_resume) + SET_RUNTIME_PM_OPS(at24_suspend, at24_resume, NULL) +}; + static struct i2c_driver at24_driver = { .driver = { .name = "at24", + .pm = &at24_pm_ops, .of_match_table = at24_of_match, .acpi_match_table = ACPI_PTR(at24_acpi_ids), }, diff --git a/drivers/misc/ocxl/Kconfig b/drivers/misc/ocxl/Kconfig index 1916fa65f2f2..2d2266c1439e 100644 --- a/drivers/misc/ocxl/Kconfig +++ b/drivers/misc/ocxl/Kconfig @@ -11,6 +11,7 @@ config OCXL tristate "OpenCAPI coherent accelerator support" depends on PPC_POWERNV && PCI && EEH select OCXL_BASE + select HOTPLUG_PCI_POWERNV default m help Select this option to enable the ocxl driver for Open diff --git a/drivers/misc/sgi-gru/gruprocfs.c b/drivers/misc/sgi-gru/gruprocfs.c index 2817f4751306..97b8b38ab47d 100644 --- a/drivers/misc/sgi-gru/gruprocfs.c +++ b/drivers/misc/sgi-gru/gruprocfs.c @@ -255,28 +255,28 @@ static int options_open(struct inode *inode, struct file *file) } /* *INDENT-OFF* */ -static const struct file_operations statistics_fops = { - .open = statistics_open, - .read = seq_read, - .write = statistics_write, - .llseek = seq_lseek, - .release = single_release, +static const struct proc_ops statistics_proc_ops = { + .proc_open = statistics_open, + .proc_read = seq_read, + .proc_write = statistics_write, + .proc_lseek = seq_lseek, + .proc_release = single_release, }; -static const struct file_operations mcs_statistics_fops = { - .open = mcs_statistics_open, - .read = seq_read, - .write = mcs_statistics_write, - .llseek = seq_lseek, - .release = single_release, +static const struct proc_ops mcs_statistics_proc_ops = { + .proc_open = mcs_statistics_open, + .proc_read = seq_read, + .proc_write = mcs_statistics_write, + .proc_lseek = seq_lseek, + .proc_release = single_release, }; -static const struct file_operations options_fops = { - .open = options_open, - .read = seq_read, - .write = options_write, - .llseek = seq_lseek, - .release = single_release, +static const struct proc_ops options_proc_ops = { + .proc_open = options_open, + .proc_read = seq_read, + .proc_write = options_write, + .proc_lseek = seq_lseek, + .proc_release = single_release, }; static struct proc_dir_entry *proc_gru __read_mostly; @@ -286,11 +286,11 @@ int gru_proc_init(void) proc_gru = proc_mkdir("sgi_uv/gru", NULL); if (!proc_gru) return -1; - if (!proc_create("statistics", 0644, proc_gru, &statistics_fops)) + if (!proc_create("statistics", 0644, proc_gru, &statistics_proc_ops)) goto err; - if (!proc_create("mcs_statistics", 0644, proc_gru, &mcs_statistics_fops)) + if (!proc_create("mcs_statistics", 0644, proc_gru, &mcs_statistics_proc_ops)) goto err; - if (!proc_create("debug_options", 0644, proc_gru, &options_fops)) + if (!proc_create("debug_options", 0644, proc_gru, &options_proc_ops)) goto err; if (!proc_create_seq("cch_status", 0444, proc_gru, &cch_seq_ops)) goto err; |