3709853456
This change brings msm display driver including sde, dp, dsi, rotator, dsi pll and dp pll from base 4.19 kernel project. It is first source code snapshot from base kernel project. Change-Id: Iec864c064ce5ea04e170f24414c728684002f284 Signed-off-by: Narendra Muppalla <NarendraM@codeaurora.org>
97 行
2.5 KiB
C
97 行
2.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (c) 2012-2019, The Linux Foundation. All rights reserved.
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*/
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#ifndef _DP_HPD_H_
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#define _DP_HPD_H_
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#include <linux/types.h>
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#include "dp_parser.h"
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#include "dp_catalog.h"
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struct device;
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/**
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* enum dp_hpd_type - dp hpd type
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* @DP_HPD_USBPD: USB type-c based HPD
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* @DP_HPD_GPIO: GPIO based HPD
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* @DP_HPD_BUILTIN: Controller built-in HPD
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*/
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enum dp_hpd_type {
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DP_HPD_USBPD,
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DP_HPD_GPIO,
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DP_HPD_LPHW,
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DP_HPD_BUILTIN,
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};
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/**
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* struct dp_hpd_cb - callback functions provided by the client
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*
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* @configure: called when dp connection is ready.
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* @disconnect: notify the cable disconnect event.
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* @attention: notify any attention message event.
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*/
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struct dp_hpd_cb {
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int (*configure)(struct device *dev);
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int (*disconnect)(struct device *dev);
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int (*attention)(struct device *dev);
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};
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/**
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* struct dp_hpd - DisplayPort HPD status
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*
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* @type: type of HPD
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* @orientation: plug orientation configuration, USBPD type only.
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* @hpd_high: Hot Plug Detect signal is high.
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* @hpd_irq: Change in the status since last message
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* @alt_mode_cfg_done: bool to specify alt mode status
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* @multi_func: multi-function preferred, USBPD type only
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* @isr: event interrupt, BUILTIN and LPHW type only
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* @register_hpd: register hardware callback
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* @host_init: source or host side setup for hpd
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* @host_deinit: source or host side de-initializations
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* @simulate_connect: simulate disconnect or connect for debug mode
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* @simulate_attention: simulate attention messages for debug mode
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*/
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struct dp_hpd {
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enum dp_hpd_type type;
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u32 orientation;
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bool hpd_high;
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bool hpd_irq;
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bool alt_mode_cfg_done;
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bool multi_func;
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void (*isr)(struct dp_hpd *dp_hpd);
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int (*register_hpd)(struct dp_hpd *dp_hpd);
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void (*host_init)(struct dp_hpd *hpd, struct dp_catalog_hpd *catalog);
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void (*host_deinit)(struct dp_hpd *hpd, struct dp_catalog_hpd *catalog);
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int (*simulate_connect)(struct dp_hpd *dp_hpd, bool hpd);
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int (*simulate_attention)(struct dp_hpd *dp_hpd, int vdo);
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};
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/**
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* dp_hpd_get() - configure and get the DisplayPlot HPD module data
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*
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* @dev: device instance of the caller
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* @parser: DP parser
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* @cb: callback function for HPD response
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* return: pointer to allocated hpd module data
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*
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* This function sets up the hpd module
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*/
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struct dp_hpd *dp_hpd_get(struct device *dev, struct dp_parser *parser,
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struct dp_catalog_hpd *catalog, struct dp_hpd_cb *cb);
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/**
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* dp_hpd_put()
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*
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* Cleans up dp_hpd instance
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*
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* @dp_hpd: instance of dp_hpd
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*/
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void dp_hpd_put(struct dp_hpd *dp_hpd);
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#endif /* _DP_HPD_H_ */
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