c57fe2034a
Add safety checks to check for dp link and core clocks before accessing the main control registers during dp teardown or dp setup. Change-Id: Ic80050b7c1cec59d7fc27a1c5f12fa1b244f86fb Signed-off-by: Vara Reddy <varar@codeaurora.org>
65 lines
2.2 KiB
C
65 lines
2.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (c) 2012-2021, 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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#include "dp_pll.h"
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#include "sde_power_handle.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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* @clk_status: check for clock status
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* @set_pixel_clk_parent: set the parent of DP pixel clock
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* @clk_get_rate: get the current rate for provided clk_name
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* @power_client_init: configures clocks and regulators
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* @power_client_deinit: frees clock and regulator resources
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* @power_mmrm_init: configures mmrm client registration
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*/
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struct dp_power {
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struct drm_device *drm_dev;
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struct sde_power_handle *phandle;
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int (*init)(struct dp_power *power, bool flip);
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int (*deinit)(struct dp_power *power);
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int (*clk_enable)(struct dp_power *power, enum dp_pm_type pm_type,
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bool enable);
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bool (*clk_status)(struct dp_power *power, enum dp_pm_type pm_type);
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int (*set_pixel_clk_parent)(struct dp_power *power, u32 stream_id);
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u64 (*clk_get_rate)(struct dp_power *power, char *clk_name);
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int (*power_client_init)(struct dp_power *power,
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struct sde_power_handle *phandle,
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struct drm_device *drm_dev);
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void (*power_client_deinit)(struct dp_power *power);
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int (*power_mmrm_init)(struct dp_power *power,
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struct sde_power_handle *phandle, void *dp,
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int (*dp_display_mmrm_callback)(struct mmrm_client_notifier_data *notifier_data));
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};
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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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* @pll: instance of pll 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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* modueles.
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*/
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struct dp_power *dp_power_get(struct dp_parser *parser, struct dp_pll *pll);
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/**
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* dp_power_put() - release the power related resources
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*
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* @power: pointer to the power module's data
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*/
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void dp_power_put(struct dp_power *power);
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#endif /* _DP_POWER_H_ */
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