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author | 2015-08-04 12:17:53 -0700 | |
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committer | 2015-08-04 15:44:42 -0700 | |
commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/drivers/regulator/dummy.c | |
parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/drivers/regulator/dummy.c')
-rw-r--r-- | kernel/drivers/regulator/dummy.c | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/kernel/drivers/regulator/dummy.c b/kernel/drivers/regulator/dummy.c new file mode 100644 index 000000000..cde749778 --- /dev/null +++ b/kernel/drivers/regulator/dummy.c @@ -0,0 +1,93 @@ +/* + * dummy.c + * + * Copyright 2010 Wolfson Microelectronics PLC. + * + * Author: Mark Brown <broonie@opensource.wolfsonmicro.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of the + * License, or (at your option) any later version. + * + * This is useful for systems with mixed controllable and + * non-controllable regulators, as well as for allowing testing on + * systems with no controllable regulators. + */ + +#include <linux/err.h> +#include <linux/export.h> +#include <linux/platform_device.h> +#include <linux/regulator/driver.h> +#include <linux/regulator/machine.h> + +#include "dummy.h" + +struct regulator_dev *dummy_regulator_rdev; + +static struct regulator_init_data dummy_initdata = { + .constraints = { + .always_on = 1, + }, +}; + +static struct regulator_ops dummy_ops; + +static const struct regulator_desc dummy_desc = { + .name = "regulator-dummy", + .id = -1, + .type = REGULATOR_VOLTAGE, + .owner = THIS_MODULE, + .ops = &dummy_ops, +}; + +static int dummy_regulator_probe(struct platform_device *pdev) +{ + struct regulator_config config = { }; + int ret; + + config.dev = &pdev->dev; + config.init_data = &dummy_initdata; + + dummy_regulator_rdev = regulator_register(&dummy_desc, &config); + if (IS_ERR(dummy_regulator_rdev)) { + ret = PTR_ERR(dummy_regulator_rdev); + pr_err("Failed to register regulator: %d\n", ret); + return ret; + } + + return 0; +} + +static struct platform_driver dummy_regulator_driver = { + .probe = dummy_regulator_probe, + .driver = { + .name = "reg-dummy", + }, +}; + +static struct platform_device *dummy_pdev; + +void __init regulator_dummy_init(void) +{ + int ret; + + dummy_pdev = platform_device_alloc("reg-dummy", -1); + if (!dummy_pdev) { + pr_err("Failed to allocate dummy regulator device\n"); + return; + } + + ret = platform_device_add(dummy_pdev); + if (ret != 0) { + pr_err("Failed to register dummy regulator device: %d\n", ret); + platform_device_put(dummy_pdev); + return; + } + + ret = platform_driver_register(&dummy_regulator_driver); + if (ret != 0) { + pr_err("Failed to register dummy regulator driver: %d\n", ret); + platform_device_unregister(dummy_pdev); + } +} |