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https://github.com/AsahiLinux/u-boot
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29fca9f23a
Simplify the subsystem by renaming `dev_pdata` to just `plat`. No functional change, just trivial renaming. Suggested-by: Simon Glass <sjg@chromium.org> Signed-off-by: Eugen Hristev <eugen.hristev@collabora.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
47 lines
1.5 KiB
C
47 lines
1.5 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2019 Disruptive Technologies Research AS
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* Sven Schwermer <sven.svenschwermer@disruptive-technologies.com>
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*/
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#ifndef _REGULATOR_COMMON_H
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#define _REGULATOR_COMMON_H
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#include <asm/gpio.h>
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struct regulator_common_plat {
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struct gpio_desc gpio; /* GPIO for regulator enable control */
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unsigned int startup_delay_us;
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unsigned int off_on_delay_us;
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unsigned int enable_count;
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};
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int regulator_common_of_to_plat(struct udevice *dev,
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struct regulator_common_plat *plat, const
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char *enable_gpio_name);
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int regulator_common_get_enable(const struct udevice *dev,
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struct regulator_common_plat *plat);
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/*
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* Enable or Disable a regulator
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*
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* This is a reentrant function and subsequent calls that enable will
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* increase an internal counter, and disable calls will decrease the counter.
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* The actual resource will be enabled when the counter gets to 1 coming from 0,
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* and disabled when it reaches 0 coming from 1.
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*
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* @dev: regulator device
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* @plat: Platform data
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* @enable: bool indicating whether to enable or disable the regulator
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* @return:
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* 0 on Success
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* -EBUSY if the regulator cannot be disabled because it's requested by
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* another device
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* -EALREADY if the regulator has already been enabled or has already been
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* disabled
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* -EACCES if there is no possibility to enable/disable the regulator
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* -ve on different error situation
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*/
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int regulator_common_set_enable(const struct udevice *dev,
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struct regulator_common_plat *plat, bool enable);
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#endif /* _REGULATOR_COMMON_H */
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