mirror of
https://github.com/AsahiLinux/u-boot
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83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
75 lines
2.1 KiB
C
75 lines
2.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright (c) 2017 Theobroma Systems Design und Consulting GmbH
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*/
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#ifndef __RK_HDMI_H__
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#define __RK_HDMI_H__
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struct rkhdmi_driverdata {
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/* configuration */
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u8 i2c_clk_high;
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u8 i2c_clk_low;
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const char * const *regulator_names;
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u32 regulator_names_cnt;
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/* setters/getters */
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int (*set_input_vop)(struct udevice *dev);
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int (*clk_config)(struct udevice *dev);
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};
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struct rk_hdmi_priv {
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struct dw_hdmi hdmi;
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void *grf;
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};
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/**
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* rk_hdmi_read_edid() - read the attached HDMI/DVI monitor's EDID
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*
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* N.B.: The buffer should be large enough to hold 2 EDID blocks, as
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* this function calls dw_hdmi_read_edid, which ignores buf_size
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* argument and assumes that there's always enough space for 2
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* EDID blocks.
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*
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* @dev: device
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* @buf: output buffer for the EDID
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* @buf_size: number of bytes in the buffer
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* @return number of bytes read if OK, -ve if something went wrong
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*/
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int rk_hdmi_read_edid(struct udevice *dev, u8 *buf, int buf_size);
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/**
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* rk_hdmi_probe_regulators() - probe (autoset + enable) regulators
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*
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* Probes a list of regulators by performing autoset and enable
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* operations on them. The list of regulators is an array of string
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* pointers and any individual regulator-probe may fail without
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* counting as an error.
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*
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* @dev: device
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* @names: array of string-pointers to regulator names to probe
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* @cnt: number of elements in the 'names' array
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*/
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void rk_hdmi_probe_regulators(struct udevice *dev,
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const char * const *names, int cnt);
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/**
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* rk_hdmi_ofdata_to_platdata() - common ofdata_to_platdata implementation
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*
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* @dev: device
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* @return 0 if OK, -ve if something went wrong
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*/
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int rk_hdmi_ofdata_to_platdata(struct udevice *dev);
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/**
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* rk_hdmi_probe() - common probe implementation
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*
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* Performs the following, common initialisation steps:
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* 1. checks for HPD (i.e. a HDMI monitor being attached)
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* 2. initialises the Designware HDMI core
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* 3. initialises the Designware HDMI PHY
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*
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* @dev: device
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* @return 0 if OK, -ve if something went wrong
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*/
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int rk_hdmi_probe(struct udevice *dev);
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#endif
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