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adee3ba577
Make usage of clock and reset bulk API in order to simplify the code Reviewed-by: Marek Vasut <marex@denx.de> Signed-off-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com> Reviewed-by: Xavier Drudis Ferran <xdrudis@tinet.cat>
116 lines
2.3 KiB
C
116 lines
2.3 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2015 Alexey Brodkin <abrodkin@synopsys.com>
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*/
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#include <common.h>
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#include <clk.h>
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#include <dm.h>
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#include <log.h>
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#include <dm/device_compat.h>
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#include <dm/devres.h>
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#include <dm/ofnode.h>
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#include <generic-phy.h>
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#include <reset.h>
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#include "ohci.h"
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struct generic_ohci {
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ohci_t ohci;
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struct clk_bulk clocks; /* clock list */
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struct reset_ctl_bulk resets; /* reset list */
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struct phy phy;
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};
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static int ohci_usb_probe(struct udevice *dev)
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{
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struct ohci_regs *regs = dev_read_addr_ptr(dev);
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struct generic_ohci *priv = dev_get_priv(dev);
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int err, ret;
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ret = clk_get_bulk(dev, &priv->clocks);
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if (ret && ret != -ENOENT) {
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dev_err(dev, "Failed to get clocks (ret=%d)\n", ret);
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return ret;
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}
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err = clk_enable_bulk(&priv->clocks);
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if (err) {
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dev_err(dev, "Failed to enable clocks (err=%d)\n", err);
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goto clk_err;
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}
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err = reset_get_bulk(dev, &priv->resets);
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if (err && err != -ENOENT) {
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dev_err(dev, "failed to get resets (err=%d)\n", err);
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goto clk_err;
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}
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err = reset_deassert_bulk(&priv->resets);
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if (err) {
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dev_err(dev, "failed to deassert resets (err=%d)\n", err);
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goto reset_err;
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}
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err = generic_setup_phy(dev, &priv->phy, 0);
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if (err)
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goto reset_err;
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err = ohci_register(dev, regs);
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if (err)
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goto phy_err;
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return 0;
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phy_err:
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ret = generic_shutdown_phy(&priv->phy);
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if (ret)
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dev_err(dev, "failed to shutdown usb phy\n");
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reset_err:
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ret = reset_release_bulk(&priv->resets);
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if (ret)
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dev_err(dev, "failed to release resets (ret=%d)\n", ret);
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clk_err:
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ret = clk_release_bulk(&priv->clocks);
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if (ret)
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dev_err(dev, "failed to release clocks (ret=%d)\n", ret);
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return err;
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}
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static int ohci_usb_remove(struct udevice *dev)
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{
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struct generic_ohci *priv = dev_get_priv(dev);
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int ret;
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ret = ohci_deregister(dev);
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if (ret)
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return ret;
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ret = generic_shutdown_phy(&priv->phy);
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if (ret)
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return ret;
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ret = reset_release_bulk(&priv->resets);
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if (ret)
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return ret;
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return clk_release_bulk(&priv->clocks);
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}
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static const struct udevice_id ohci_usb_ids[] = {
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{ .compatible = "generic-ohci" },
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{ }
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};
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U_BOOT_DRIVER(ohci_generic) = {
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.name = "ohci_generic",
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.id = UCLASS_USB,
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.of_match = ohci_usb_ids,
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.probe = ohci_usb_probe,
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.remove = ohci_usb_remove,
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.ops = &ohci_usb_ops,
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.priv_auto = sizeof(struct generic_ohci),
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.flags = DM_FLAG_ALLOC_PRIV_DMA,
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};
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