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dm: Add a dsi host uclass

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Display Serial Interface (DSI) host can usefully be modelled
as their own uclass.
DSI defines a serial bus and a communication protocol
between the host and the device (panel, bridge).

Signed-off-by: Yannick Fertré <yannick.fertre@st.com>
This commit is contained in:
Yannick Fertré 2019-10-07 15:29:05 +02:00 • committed by Anatolij Gustschin
parent 66c3724656
commit 23f965a4c6
11 changed files with 285 additions and 1 deletions
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73
include/dsi_host.h Normal file
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/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright (C) 2019 STMicroelectronics - All Rights Reserved
* Author(s): Yannick Fertre <yannick.fertre@st.com> for STMicroelectronics.
*
*/
#ifndef _DSI_HOST_H
#define _DSI_HOST_H
#include <mipi_dsi.h>
struct dsi_host_ops {
/**
* init() - initialized the dsi_host
*
* @dev: dsi host device
* @device: DSI peripheral device
* @timing: Display timings
* @max_data_lanes: maximum number of data lines
* @phy_ops: set of function pointers for performing physical operations
* @return 0 if OK, -ve on error
*/
int (*init)(struct udevice *dev,
struct mipi_dsi_device *device,
struct display_timing *timings,
unsigned int max_data_lanes,
const struct mipi_dsi_phy_ops *phy_ops);
/**
* enable() - Enable the dsi_host
*
* @dev: dsi host device
* @return 0 if OK, -ve on error
*/
int (*enable)(struct udevice *dev);
/**
* disable() - Disable the dsi_host
*
* @dev: dsi host device
* @return 0 if OK, -ve on error
*/
int (*disable)(struct udevice *dev);
};
#define dsi_host_get_ops(dev) ((struct dsi_host_ops *)(dev)->driver->ops)
/**
* dsi_host_init
*
* @dev: dsi host device
* @device: DSI peripheral device
* @timing: Display timings
* @max_data_lanes: maximum number of data lines
* @phy_ops: set of function pointers for performing physical operations
* @return 0 if OK, -ve on error
*/
int dsi_host_init(struct udevice *dev,
struct mipi_dsi_device *device,
struct display_timing *timings,
unsigned int max_data_lanes,
const struct mipi_dsi_phy_ops *phy_ops);
/**
* dsi_host_enable
*
* @dev: dsi host device
* @return 0 if OK, -ve on error
*/
int dsi_host_enable(struct udevice *dev);
#endif