src/soc/intel/common/block/include/intelblocks/lpss.h

/* SPDX-License-Identifier: GPL-2.0-only */

#ifndef SOC_INTEL_COMMON_BLOCK_LPSS_H
#define SOC_INTEL_COMMON_BLOCK_LPSS_H

#include <device/device.h>
#include <stdint.h>

/* D0 and D3 enable config */
enum lpss_pwr_state {
	STATE_D0 = 0,
	STATE_D3 = 3
};

/* Gets controller out of reset */
void lpss_reset_release(uintptr_t base);

/*
 * Update clock divider parameters. Clock frequency is dependent on source
 * clock frequency of each IP block. Resulting clock will be src_freq * (M / N).
 */
void lpss_clk_update(uintptr_t base, uint32_t clk_m_val, uint32_t clk_n_val);

/* Check if controller is in reset. */
bool lpss_is_controller_in_reset(uintptr_t base);

/* Set controller power state to D0 or D3*/
void lpss_set_power_state(pci_devfn_t devfn, enum lpss_pwr_state state);

#endif	/* SOC_INTEL_COMMON_BLOCK_LPSS_H */