/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * fixed.h
 *
 * Copyright 2008 Wolfson Microelectronics PLC.
 *
 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
 *
 * Copyright (c) 2009 Nokia Corporation
 * Roger Quadros <ext-roger.quadros@nokia.com>
 */

#ifndef __REGULATOR_FIXED_H
#define __REGULATOR_FIXED_H

struct regulator_init_data;

/**
 * struct fixed_voltage_config - fixed_voltage_config structure
 * @supply_name:	Name of the regulator supply
 * @input_supply:	Name of the input regulator supply
 * @microvolts:		Output voltage of regulator
 * @startup_delay:	Start-up time in microseconds
 * @enabled_at_boot:	Whether regulator has been enabled at
 * 			boot or not. 1 = Yes, 0 = No
 * 			This is used to keep the regulator at
 * 			the default state
 * @init_data:		regulator_init_data
 *
 * This structure contains fixed voltage regulator configuration
 * information that must be passed by platform code to the fixed
 * voltage regulator driver.
 */
struct fixed_voltage_config {
	const char *supply_name;
	const char *input_supply;
	int microvolts;
	unsigned startup_delay;
	unsigned int off_on_delay;
	unsigned enabled_at_boot:1;
	struct regulator_init_data *init_data;
};

struct regulator_consumer_supply;

#if IS_ENABLED(CONFIG_REGULATOR)
struct platform_device *regulator_register_always_on(int id, const char *name,
		struct regulator_consumer_supply *supplies, int num_supplies, int uv);
#else
static inline struct platform_device *regulator_register_always_on(int id, const char *name,
		struct regulator_consumer_supply *supplies, int num_supplies, int uv)
{
	return NULL;
}
#endif

#define regulator_register_fixed(id, s, ns) regulator_register_always_on(id, \
						"fixed-dummy", s, ns, 0)

#endif
kernel/commit/?id=d9a1dab65aa2d4de7244731c97c70491997225f2'/>
<id>urn:sha1:d9a1dab65aa2d4de7244731c97c70491997225f2</id>
<content type='text'>
The 'choice' statement is primarily used to exclusively select one
option, but the 'optional' property allows all entries to be disabled.

This feature is rarely used. In fact, it is only used in arch/sh/Kconfig
because the equivalent outcome can be achieved by inserting one more
entry.

The 'optional' property support will be removed from Kconfig.

This commit replaces the 'optional' property with a dummy option,
CMDLINE_FROM_BOOTLOADER, as seen in some other architectures.

Note:
 The 'default CMDLINE_OVERWRITE' statement does not work as intended
 in combination with 'optional'. If neither CONFIG_CMDLINE_OVERWRITE
 nor CONFIG_CMDLINE_EXTEND is specified in a defconfig file, both of
 them are disabled. This is a bug. To maintain the current behavior,
 I added CONFIG_CMDLINE_FROM_BOOTLOADER=y to those defconfig files.

Signed-off-by: Masahiro Yamada &lt;masahiroy@kernel.org&gt;
Acked-by: John Paul Adrian Glaubitz &lt;glaubitz@physik.fu-berlin.de&gt;
</content>
</entry>
<entry>
<title>mm/slab: rename CONFIG_SLAB to CONFIG_SLAB_DEPRECATED</title>
<updated>2023-05-26T17:01:47Z</updated>
<author>
<name>Vlastimil Babka</name>
<email>vbabka@suse.cz</email>
</author>
<published>2023-05-23T07:06:34Z</published>
<link rel='alternate' type='text/html' href='https://universe.0xinfinity.dev/distro/kernel/commit/?id=eb07c4f39c3e858a7d0cc4bb15b8a304f83f0497'/>
<id>urn:sha1:eb07c4f39c3e858a7d0cc4bb15b8a304f83f0497</id>
<content type='text'>
As discussed at LSF/MM [1] [2] and with no objections raised there,
deprecate the SLAB allocator. Rename the user-visible option so that
users with CONFIG_SLAB=y get a new prompt with explanation during make
oldconfig, while make olddefconfig will just switch to SLUB.

In all defconfigs with CONFIG_SLAB=y remove the line so those also
switch to SLUB. Regressions due to the switch should be reported to
linux-mm and slab maintainers.

[1] https://lore.kernel.org/all/4b9fc9c6-b48c-198f-5f80-811a44737e5f@suse.cz/
[2] https://lwn.net/Articles/932201/

Signed-off-by: Vlastimil Babka &lt;vbabka@suse.cz&gt;
Acked-by: Hyeonggon Yoo &lt;42.hyeyoo@gmail.com&gt;
Acked-by: David Rientjes &lt;rientjes@google.com&gt;
Acked-by: Geert Uytterhoeven &lt;geert@linux-m68k.org&gt; # m68k
Acked-by: Helge Deller &lt;deller@gmx.de&gt; # parisc
</content>
</entry>