mirror of
https://github.com/u-boot/u-boot.git
synced 2024-11-26 13:44:29 +08:00
9b643e312d
U-Boot widely uses error() as a bit noisier variant of printf(). This macro causes name conflict with the following line in include/linux/compiler-gcc.h: # define __compiletime_error(message) __attribute__((error(message))) This prevents us from using __compiletime_error(), and makes it difficult to fully sync BUILD_BUG macros with Linux. (Notice Linux's BUILD_BUG_ON_MSG is implemented by using compiletime_assert().) Let's convert error() into now treewide-available pr_err(). Done with the help of Coccinelle, excluing tools/ directory. The semantic patch I used is as follows: // <smpl> @@@@ -error +pr_err (...) // </smpl> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Simon Glass <sjg@chromium.org> [trini: Re-run Coccinelle] Signed-off-by: Tom Rini <trini@konsulko.com>
165 lines
3.6 KiB
C
165 lines
3.6 KiB
C
/*
|
|
* Copyright (C) 2015 Alexey Brodkin <abrodkin@synopsys.com>
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <clk.h>
|
|
#include <dm.h>
|
|
#include <dm/ofnode.h>
|
|
#include <generic-phy.h>
|
|
#include <reset.h>
|
|
#include "ohci.h"
|
|
|
|
#if !defined(CONFIG_USB_OHCI_NEW)
|
|
# error "Generic OHCI driver requires CONFIG_USB_OHCI_NEW"
|
|
#endif
|
|
|
|
struct generic_ohci {
|
|
ohci_t ohci;
|
|
struct clk *clocks; /* clock list */
|
|
struct reset_ctl *resets; /* reset list */
|
|
struct phy phy;
|
|
int clock_count; /* number of clock in clock list */
|
|
int reset_count; /* number of reset in reset list */
|
|
};
|
|
|
|
static int ohci_usb_probe(struct udevice *dev)
|
|
{
|
|
struct ohci_regs *regs = (struct ohci_regs *)devfdt_get_addr(dev);
|
|
struct generic_ohci *priv = dev_get_priv(dev);
|
|
int i, err, ret, clock_nb, reset_nb;
|
|
|
|
err = 0;
|
|
priv->clock_count = 0;
|
|
clock_nb = dev_count_phandle_with_args(dev, "clocks", "#clock-cells");
|
|
if (clock_nb > 0) {
|
|
priv->clocks = devm_kcalloc(dev, clock_nb, sizeof(struct clk),
|
|
GFP_KERNEL);
|
|
if (!priv->clocks)
|
|
return -ENOMEM;
|
|
|
|
for (i = 0; i < clock_nb; i++) {
|
|
err = clk_get_by_index(dev, i, &priv->clocks[i]);
|
|
if (err < 0)
|
|
break;
|
|
|
|
err = clk_enable(&priv->clocks[i]);
|
|
if (err) {
|
|
pr_err("failed to enable clock %d\n", i);
|
|
clk_free(&priv->clocks[i]);
|
|
goto clk_err;
|
|
}
|
|
priv->clock_count++;
|
|
}
|
|
} else if (clock_nb != -ENOENT) {
|
|
pr_err("failed to get clock phandle(%d)\n", clock_nb);
|
|
return clock_nb;
|
|
}
|
|
|
|
priv->reset_count = 0;
|
|
reset_nb = dev_count_phandle_with_args(dev, "resets", "#reset-cells");
|
|
if (reset_nb > 0) {
|
|
priv->resets = devm_kcalloc(dev, reset_nb,
|
|
sizeof(struct reset_ctl),
|
|
GFP_KERNEL);
|
|
if (!priv->resets)
|
|
return -ENOMEM;
|
|
|
|
for (i = 0; i < reset_nb; i++) {
|
|
err = reset_get_by_index(dev, i, &priv->resets[i]);
|
|
if (err < 0)
|
|
break;
|
|
|
|
err = reset_deassert(&priv->resets[i]);
|
|
if (err) {
|
|
pr_err("failed to deassert reset %d\n", i);
|
|
reset_free(&priv->resets[i]);
|
|
goto reset_err;
|
|
}
|
|
priv->reset_count++;
|
|
}
|
|
} else if (reset_nb != -ENOENT) {
|
|
pr_err("failed to get reset phandle(%d)\n", reset_nb);
|
|
goto clk_err;
|
|
}
|
|
|
|
err = generic_phy_get_by_index(dev, 0, &priv->phy);
|
|
if (err) {
|
|
if (err != -ENOENT) {
|
|
pr_err("failed to get usb phy\n");
|
|
goto reset_err;
|
|
}
|
|
} else {
|
|
|
|
err = generic_phy_init(&priv->phy);
|
|
if (err) {
|
|
pr_err("failed to init usb phy\n");
|
|
goto reset_err;
|
|
}
|
|
}
|
|
|
|
err = ohci_register(dev, regs);
|
|
if (err)
|
|
goto phy_err;
|
|
|
|
return 0;
|
|
|
|
phy_err:
|
|
if (generic_phy_valid(&priv->phy)) {
|
|
ret = generic_phy_exit(&priv->phy);
|
|
if (ret)
|
|
pr_err("failed to release phy\n");
|
|
}
|
|
|
|
reset_err:
|
|
ret = reset_release_all(priv->resets, priv->reset_count);
|
|
if (ret)
|
|
pr_err("failed to assert all resets\n");
|
|
clk_err:
|
|
ret = clk_release_all(priv->clocks, priv->clock_count);
|
|
if (ret)
|
|
pr_err("failed to disable all clocks\n");
|
|
|
|
return err;
|
|
}
|
|
|
|
static int ohci_usb_remove(struct udevice *dev)
|
|
{
|
|
struct generic_ohci *priv = dev_get_priv(dev);
|
|
int ret;
|
|
|
|
ret = ohci_deregister(dev);
|
|
if (ret)
|
|
return ret;
|
|
|
|
if (generic_phy_valid(&priv->phy)) {
|
|
ret = generic_phy_exit(&priv->phy);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
|
|
ret = reset_release_all(priv->resets, priv->reset_count);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return clk_release_all(priv->clocks, priv->clock_count);
|
|
}
|
|
|
|
static const struct udevice_id ohci_usb_ids[] = {
|
|
{ .compatible = "generic-ohci" },
|
|
{ }
|
|
};
|
|
|
|
U_BOOT_DRIVER(ohci_generic) = {
|
|
.name = "ohci_generic",
|
|
.id = UCLASS_USB,
|
|
.of_match = ohci_usb_ids,
|
|
.probe = ohci_usb_probe,
|
|
.remove = ohci_usb_remove,
|
|
.ops = &ohci_usb_ops,
|
|
.priv_auto_alloc_size = sizeof(struct generic_ohci),
|
|
.flags = DM_FLAG_ALLOC_PRIV_DMA,
|
|
};
|