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https://github.com/brain-hackers/u-boot-brain
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caa4daa2ae
We use 'priv' for private data but often use 'platdata' for platform data. We can't really use 'pdata' since that is ambiguous (it could mean private or platform data). Rename some of the latter variables to end with 'plat' for consistency. Signed-off-by: Simon Glass <sjg@chromium.org>
108 lines
2.1 KiB
C
108 lines
2.1 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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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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#include <common.h>
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#include <dm.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 = "rockchip,rk3399-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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.plat_auto = sizeof(struct dwc3_of_simple),
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.flags = DM_FLAG_ALLOC_PRIV_DMA,
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};
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