mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-27 13:23:44 +09:00
d024236e5a
We have a large number of places where while we historically referenced gd in the code we no longer do, as well as cases where the code added that line "just in case" during development and never dropped it. Signed-off-by: Tom Rini <trini@konsulko.com>
109 lines
2.1 KiB
C
109 lines
2.1 KiB
C
/*
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* dwc3-of-simple.c - OF glue layer for simple integrations
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*
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* Copyright (c) 2015 Texas Instruments Incorporated - http://www.ti.com
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*
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* Author: Felipe Balbi <balbi@ti.com>
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*
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* Copyright (C) 2018 BayLibre, SAS
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* Author: Neil Armstrong <narmstron@baylibre.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <dm.h>
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#include <fdtdec.h>
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#include <reset.h>
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#include <clk.h>
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struct dwc3_of_simple {
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struct clk_bulk clks;
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struct reset_ctl_bulk resets;
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};
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static int dwc3_of_simple_reset_init(struct udevice *dev,
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struct dwc3_of_simple *simple)
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{
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int ret;
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ret = reset_get_bulk(dev, &simple->resets);
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if (ret == -ENOTSUPP)
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return 0;
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else if (ret)
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return ret;
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ret = reset_deassert_bulk(&simple->resets);
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if (ret) {
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reset_release_bulk(&simple->resets);
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return ret;
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}
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return 0;
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}
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static int dwc3_of_simple_clk_init(struct udevice *dev,
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struct dwc3_of_simple *simple)
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{
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int ret;
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ret = clk_get_bulk(dev, &simple->clks);
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if (ret == -ENOSYS)
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return 0;
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if (ret)
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return ret;
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#if CONFIG_IS_ENABLED(CLK)
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ret = clk_enable_bulk(&simple->clks);
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if (ret) {
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clk_release_bulk(&simple->clks);
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return ret;
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}
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#endif
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return 0;
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}
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static int dwc3_of_simple_probe(struct udevice *dev)
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{
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struct dwc3_of_simple *simple = dev_get_platdata(dev);
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int ret;
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ret = dwc3_of_simple_clk_init(dev, simple);
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if (ret)
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return ret;
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ret = dwc3_of_simple_reset_init(dev, simple);
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if (ret)
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return ret;
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return 0;
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}
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static int dwc3_of_simple_remove(struct udevice *dev)
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{
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struct dwc3_of_simple *simple = dev_get_platdata(dev);
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reset_release_bulk(&simple->resets);
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clk_release_bulk(&simple->clks);
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return dm_scan_fdt_dev(dev);
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}
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static const struct udevice_id dwc3_of_simple_ids[] = {
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{ .compatible = "amlogic,meson-gxl-dwc3" },
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{ .compatible = "ti,dwc3" },
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{ }
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};
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U_BOOT_DRIVER(dwc3_of_simple) = {
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.name = "dwc3-of-simple",
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.id = UCLASS_SIMPLE_BUS,
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.of_match = dwc3_of_simple_ids,
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.probe = dwc3_of_simple_probe,
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.remove = dwc3_of_simple_remove,
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.platdata_auto_alloc_size = sizeof(struct dwc3_of_simple),
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.flags = DM_FLAG_ALLOC_PRIV_DMA,
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};
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