b84d4d0932
This subsystem is present on various Intel SoCs. Add very basic support for taking an lpss device out of reset. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
37 lines
685 B
C
37 lines
685 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright 2019 Google LLC
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*/
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#ifndef __ASM_LPSS_H
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#define __ASM_LPSS_H
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struct udevice;
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/* D0 and D3 enable config */
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enum lpss_pwr_state {
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STATE_D0 = 0,
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STATE_D3 = 3
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};
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/**
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* lpss_reset_release() - Release device from reset
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*
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* This is used for devices which have LPSS support.
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*
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* @regs: Pointer to device registers
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*/
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void lpss_reset_release(void *regs);
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/**
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* lpss_set_power_state() - Change power state of a device
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*
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* This is used for devices which have LPSS support.
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*
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* @dev: Device to update
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* @state: New power state to set
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*/
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void lpss_set_power_state(struct udevice *dev, enum lpss_pwr_state state);
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#endif
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