mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-19 03:08:31 +00:00
56c7ba3462
Documents the externally visible functions shared between the HDMI drivers for the RK3288 and RK3399. Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Reviewed-by: Simon Glass <sjg@chromium.org>
76 lines
2.1 KiB
C
76 lines
2.1 KiB
C
/*
|
|
* Copyright (c) 2017 Theobroma Systems Design und Consulting GmbH
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#ifndef __RK_HDMI_H__
|
|
#define __RK_HDMI_H__
|
|
|
|
struct rkhdmi_driverdata {
|
|
/* configuration */
|
|
u8 i2c_clk_high;
|
|
u8 i2c_clk_low;
|
|
const char * const *regulator_names;
|
|
u32 regulator_names_cnt;
|
|
/* setters/getters */
|
|
int (*set_input_vop)(struct udevice *dev);
|
|
int (*clk_config)(struct udevice *dev);
|
|
};
|
|
|
|
struct rk_hdmi_priv {
|
|
struct dw_hdmi hdmi;
|
|
void *grf;
|
|
};
|
|
|
|
/**
|
|
* rk_hdmi_read_edid() - read the attached HDMI/DVI monitor's EDID
|
|
*
|
|
* N.B.: The buffer should be large enough to hold 2 EDID blocks, as
|
|
* this function calls dw_hdmi_read_edid, which ignores buf_size
|
|
* argument and assumes that there's always enough space for 2
|
|
* EDID blocks.
|
|
*
|
|
* @dev: device
|
|
* @buf: output buffer for the EDID
|
|
* @buf_size: number of bytes in the buffer
|
|
* @return number of bytes read if OK, -ve if something went wrong
|
|
*/
|
|
int rk_hdmi_read_edid(struct udevice *dev, u8 *buf, int buf_size);
|
|
|
|
/**
|
|
* rk_hdmi_probe_regulators() - probe (autoset + enable) regulators
|
|
*
|
|
* Probes a list of regulators by performing autoset and enable
|
|
* operations on them. The list of regulators is an array of string
|
|
* pointers and any individual regulator-probe may fail without
|
|
* counting as an error.
|
|
*
|
|
* @dev: device
|
|
* @names: array of string-pointers to regulator names to probe
|
|
* @cnt: number of elements in the 'names' array
|
|
*/
|
|
void rk_hdmi_probe_regulators(struct udevice *dev,
|
|
const char * const *names, int cnt);
|
|
/**
|
|
* rk_hdmi_ofdata_to_platdata() - common ofdata_to_platdata implementation
|
|
*
|
|
* @dev: device
|
|
* @return 0 if OK, -ve if something went wrong
|
|
*/
|
|
int rk_hdmi_ofdata_to_platdata(struct udevice *dev);
|
|
|
|
/**
|
|
* rk_hdmi_probe() - common probe implementation
|
|
*
|
|
* Performs the following, common initialisation steps:
|
|
* 1. checks for HPD (i.e. a HDMI monitor being attached)
|
|
* 2. initialises the Designware HDMI core
|
|
* 3. initialises the Designware HDMI PHY
|
|
*
|
|
* @dev: device
|
|
* @return 0 if OK, -ve if something went wrong
|
|
*/
|
|
int rk_hdmi_probe(struct udevice *dev);
|
|
|
|
#endif
|