108 lines
2.8 KiB
C
108 lines
2.8 KiB
C
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/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (c) 2012-2020, The Linux Foundation. All rights reserved.
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*/
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#ifndef _DP_POWER_H_
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#define _DP_POWER_H_
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#include "dp_parser.h"
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/**
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* sruct dp_power - DisplayPort's power related data
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*
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* @init: initializes the regulators/core clocks/GPIOs/pinctrl
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* @deinit: turns off the regulators/core clocks/GPIOs/pinctrl
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* @clk_enable: enable/disable the DP clocks
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* @set_pixel_clk_parent: set the parent of DP pixel clock
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*/
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struct dp_power {
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bool core_clks_on;
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bool link_clks_on;
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bool stream_clks_on;
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};
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/**
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* dp_power_init() - enable power supplies for display controller
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*
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* @power: instance of power module
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* @flip: bool for flipping gpio direction
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* return: 0 if success or error if failure.
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*
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* This API will turn on the regulators and configures gpio's
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* aux/hpd.
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*/
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int dp_power_init(struct dp_power *power, bool flip);
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/**
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* dp_power_deinit() - turn off regulators and gpios.
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*
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* @power: instance of power module
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* return: 0 for success
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*
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* This API turns off power and regulators.
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*/
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int dp_power_deinit(struct dp_power *power);
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/**
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* dp_power_clk_status() - display controller clocks status
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*
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* @power: instance of power module
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* @pm_type: type of pm, core/ctrl/phy
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* return: status of power clocks
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*
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* This API return status of DP clocks
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*/
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int dp_power_clk_status(struct dp_power *dp_power, enum dp_pm_type pm_type);
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/**
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* dp_power_clk_enable() - enable display controller clocks
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*
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* @power: instance of power module
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* @pm_type: type of pm, core/ctrl/phy
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* @enable: enables or disables
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* return: pointer to allocated power module data
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*
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* This API will call setrate and enable for DP clocks
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*/
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int dp_power_clk_enable(struct dp_power *power, enum dp_pm_type pm_type,
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bool enable);
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/**
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* dp_power_client_init() - initialize clock and regulator modules
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*
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* @power: instance of power module
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* return: 0 for success, error for failure.
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*
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* This API will configure the DisplayPort's clocks and regulator
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* modules.
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*/
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int dp_power_client_init(struct dp_power *power);
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/**
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* dp_power_clinet_deinit() - de-initialize clock and regulator modules
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*
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* @power: instance of power module
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* return: 0 for success, error for failure.
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*
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* This API will de-initialize the DisplayPort's clocks and regulator
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* modules.
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*/
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void dp_power_client_deinit(struct dp_power *power);
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/**
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* dp_power_get() - configure and get the DisplayPort power module data
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*
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* @parser: instance of parser module
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* return: pointer to allocated power module data
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*
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* This API will configure the DisplayPort's power module and provides
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* methods to be called by the client to configure the power related
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* modules.
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*/
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struct dp_power *dp_power_get(struct device *dev, struct dp_parser *parser);
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#endif /* _DP_POWER_H_ */
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