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https://github.com/brain-hackers/u-boot-brain
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41575d8e4c
This construct is quite long-winded. In earlier days it made some sense since auto-allocation was a strange concept. But with driver model now used pretty universally, we can shorten this to 'auto'. This reduces verbosity and makes it easier to read. Coincidentally it also ensures that every declaration is on one line, thus making dtoc's job easier. Signed-off-by: Simon Glass <sjg@chromium.org>
76 lines
1.9 KiB
C
76 lines
1.9 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Texas Instruments System Control Interface (TI SCI) system reset driver
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*
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* Copyright (C) 2018 Texas Instruments Incorporated - http://www.ti.com/
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* Andreas Dannenberg <dannenberg@ti.com>
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*/
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#include <common.h>
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#include <dm.h>
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#include <errno.h>
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#include <log.h>
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#include <sysreset.h>
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#include <dm/device_compat.h>
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#include <linux/err.h>
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#include <linux/soc/ti/ti_sci_protocol.h>
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/**
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* struct ti_sci_sysreset_data - sysreset controller information structure
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* @sci: TI SCI handle used for communication with system controller
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*/
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struct ti_sci_sysreset_data {
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const struct ti_sci_handle *sci;
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};
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static int ti_sci_sysreset_probe(struct udevice *dev)
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{
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struct ti_sci_sysreset_data *data = dev_get_priv(dev);
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debug("%s(dev=%p)\n", __func__, dev);
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if (!data)
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return -ENOMEM;
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/* Store handle for communication with the system controller */
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data->sci = ti_sci_get_handle(dev);
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if (IS_ERR(data->sci))
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return PTR_ERR(data->sci);
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return 0;
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}
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static int ti_sci_sysreset_request(struct udevice *dev, enum sysreset_t type)
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{
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struct ti_sci_sysreset_data *data = dev_get_priv(dev);
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const struct ti_sci_handle *sci = data->sci;
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const struct ti_sci_core_ops *cops = &sci->ops.core_ops;
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int ret;
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debug("%s(dev=%p, type=%d)\n", __func__, dev, type);
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ret = cops->reboot_device(sci);
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if (ret)
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dev_err(dev, "%s: reboot_device failed (%d)\n", __func__, ret);
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return ret;
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}
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static struct sysreset_ops ti_sci_sysreset_ops = {
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.request = ti_sci_sysreset_request,
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};
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static const struct udevice_id ti_sci_sysreset_of_match[] = {
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{ .compatible = "ti,sci-sysreset", },
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{ /* sentinel */ },
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};
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U_BOOT_DRIVER(ti_sci_sysreset) = {
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.name = "ti-sci-sysreset",
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.id = UCLASS_SYSRESET,
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.of_match = ti_sci_sysreset_of_match,
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.probe = ti_sci_sysreset_probe,
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.priv_auto = sizeof(struct ti_sci_sysreset_data),
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.ops = &ti_sci_sysreset_ops,
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};
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