diff options
Diffstat (limited to 'drivers/misc/lis3lv02d/lis3lv02d_i2c.c')
| -rw-r--r-- | drivers/misc/lis3lv02d/lis3lv02d_i2c.c | 61 |
1 files changed, 25 insertions, 36 deletions
diff --git a/drivers/misc/lis3lv02d/lis3lv02d_i2c.c b/drivers/misc/lis3lv02d/lis3lv02d_i2c.c index 7c97550240f1..15119584473c 100644 --- a/drivers/misc/lis3lv02d/lis3lv02d_i2c.c +++ b/drivers/misc/lis3lv02d/lis3lv02d_i2c.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * drivers/hwmon/lis3lv02d_i2c.c * @@ -8,25 +9,10 @@ * Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). * * Contact: Samu Onkalo <samu.p.onkalo@nokia.com> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * version 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA - * 02110-1301 USA */ #include <linux/module.h> #include <linux/kernel.h> -#include <linux/init.h> #include <linux/err.h> #include <linux/i2c.h> #include <linux/pm_runtime.h> @@ -107,15 +93,14 @@ static union axis_conversion lis3lv02d_axis_map = { .as_array = { LIS3_DEV_X, LIS3_DEV_Y, LIS3_DEV_Z } }; #ifdef CONFIG_OF -static struct of_device_id lis3lv02d_i2c_dt_ids[] = { +static const struct of_device_id lis3lv02d_i2c_dt_ids[] = { { .compatible = "st,lis3lv02d" }, {} }; MODULE_DEVICE_TABLE(of, lis3lv02d_i2c_dt_ids); #endif -static int lis3lv02d_i2c_probe(struct i2c_client *client, - const struct i2c_device_id *id) +static int lis3lv02d_i2c_probe(struct i2c_client *client) { int ret = 0; struct lis3lv02d_platform_data *pdata = client->dev.platform_data; @@ -165,6 +150,7 @@ static int lis3lv02d_i2c_probe(struct i2c_client *client, lis3_dev.init = lis3_i2c_init; lis3_dev.read = lis3_i2c_read; lis3_dev.write = lis3_i2c_write; + lis3_dev.reg_ctrl = lis3_reg_ctrl; lis3_dev.irq = client->irq; lis3_dev.ac = lis3lv02d_axis_map; lis3_dev.pm_dev = &client->dev; @@ -191,7 +177,7 @@ fail: return ret; } -static int lis3lv02d_i2c_remove(struct i2c_client *client) +static void lis3lv02d_i2c_remove(struct i2c_client *client) { struct lis3lv02d *lis3 = i2c_get_clientdata(client); struct lis3lv02d_platform_data *pdata = client->dev.platform_data; @@ -204,42 +190,46 @@ static int lis3lv02d_i2c_remove(struct i2c_client *client) regulator_bulk_free(ARRAY_SIZE(lis3->regulators), lis3_dev.regulators); - return 0; } #ifdef CONFIG_PM_SLEEP static int lis3lv02d_i2c_suspend(struct device *dev) { - struct i2c_client *client = container_of(dev, struct i2c_client, dev); + struct i2c_client *client = to_i2c_client(dev); struct lis3lv02d *lis3 = i2c_get_clientdata(client); - if (!lis3->pdata || !lis3->pdata->wakeup_flags) + /* Turn on for wakeup if turned off by runtime suspend */ + if (lis3->pdata && lis3->pdata->wakeup_flags) { + if (pm_runtime_suspended(dev)) + lis3lv02d_poweron(lis3); + /* For non wakeup turn off if not already turned off by runtime suspend */ + } else if (!pm_runtime_suspended(dev)) lis3lv02d_poweroff(lis3); + return 0; } static int lis3lv02d_i2c_resume(struct device *dev) { - struct i2c_client *client = container_of(dev, struct i2c_client, dev); + struct i2c_client *client = to_i2c_client(dev); struct lis3lv02d *lis3 = i2c_get_clientdata(client); - /* - * pm_runtime documentation says that devices should always - * be powered on at resume. Pm_runtime turns them off after system - * wide resume is complete. - */ - if (!lis3->pdata || !lis3->pdata->wakeup_flags || - pm_runtime_suspended(dev)) + /* Turn back off if turned on for wakeup and runtime suspended*/ + if (lis3->pdata && lis3->pdata->wakeup_flags) { + if (pm_runtime_suspended(dev)) + lis3lv02d_poweroff(lis3); + /* For non wakeup turn back on if not runtime suspended */ + } else if (!pm_runtime_suspended(dev)) lis3lv02d_poweron(lis3); return 0; } #endif /* CONFIG_PM_SLEEP */ -#ifdef CONFIG_PM_RUNTIME +#ifdef CONFIG_PM static int lis3_i2c_runtime_suspend(struct device *dev) { - struct i2c_client *client = container_of(dev, struct i2c_client, dev); + struct i2c_client *client = to_i2c_client(dev); struct lis3lv02d *lis3 = i2c_get_clientdata(client); lis3lv02d_poweroff(lis3); @@ -248,13 +238,13 @@ static int lis3_i2c_runtime_suspend(struct device *dev) static int lis3_i2c_runtime_resume(struct device *dev) { - struct i2c_client *client = container_of(dev, struct i2c_client, dev); + struct i2c_client *client = to_i2c_client(dev); struct lis3lv02d *lis3 = i2c_get_clientdata(client); lis3lv02d_poweron(lis3); return 0; } -#endif /* CONFIG_PM_RUNTIME */ +#endif /* CONFIG_PM */ static const struct i2c_device_id lis3lv02d_id[] = { {"lis3lv02d", LIS3LV02D}, @@ -275,11 +265,10 @@ static const struct dev_pm_ops lis3_pm_ops = { static struct i2c_driver lis3lv02d_i2c_driver = { .driver = { .name = DRV_NAME, - .owner = THIS_MODULE, .pm = &lis3_pm_ops, .of_match_table = of_match_ptr(lis3lv02d_i2c_dt_ids), }, - .probe = lis3lv02d_i2c_probe, + .probe = lis3lv02d_i2c_probe, .remove = lis3lv02d_i2c_remove, .id_table = lis3lv02d_id, }; |