Djam/u-boot
1
0
Fork 0
mirror of https://github.com/u-boot/u-boot.git synced 2025-04-30 08:07:59 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

Merge branch 'next' of https://source.denx.de/u-boot/custodians/u-boot-usb into next

Browse source
This commit is contained in:
Tom Rini 2023-09-06 11:50:22 -04:00
commit 31d9d64444
2 changed files with 64 additions and 62 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

90
drivers/usb/host/ohci-generic.c
View file

@ -16,75 +16,41 @@
struct generic_ohci {
ohci_t ohci;
struct clk *clocks; /* clock list */
struct reset_ctl *resets; /* reset list */
struct clk_bulk clocks; /* clock list */
struct reset_ctl_bulk 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 = dev_read_addr_ptr(dev);
struct generic_ohci *priv = dev_get_priv(dev);
int i, err, ret, clock_nb, reset_nb;
int err, ret;
err = 0;
priv->clock_count = 0;
clock_nb = dev_count_phandle_with_args(dev, "clocks", "#clock-cells",
0);
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 && err != -ENOSYS) {
dev_err(dev, "failed to enable clock %d\n", i);
clk_free(&priv->clocks[i]);
goto clk_err;
}
priv->clock_count++;
}
} else if (clock_nb != -ENOENT) {
dev_err(dev, "failed to get clock phandle(%d)\n", clock_nb);
return clock_nb;
ret = clk_get_bulk(dev, &priv->clocks);
if (ret && ret != -ENOENT) {
dev_err(dev, "Failed to get clocks (ret=%d)\n", ret);
return ret;
}
priv->reset_count = 0;
reset_nb = dev_count_phandle_with_args(dev, "resets", "#reset-cells",
0);
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) {
dev_err(dev, "failed to deassert reset %d\n", i);
reset_free(&priv->resets[i]);
goto reset_err;
}
priv->reset_count++;
}
} else if (reset_nb != -ENOENT) {
dev_err(dev, "failed to get reset phandle(%d)\n", reset_nb);
err = clk_enable_bulk(&priv->clocks);
if (err) {
dev_err(dev, "Failed to enable clocks (err=%d)\n", err);
goto clk_err;
}
err = reset_get_bulk(dev, &priv->resets);
if (err && err != -ENOENT) {
dev_err(dev, "failed to get resets (err=%d)\n", err);
goto clk_err;
}
err = reset_deassert_bulk(&priv->resets);
if (err) {
dev_err(dev, "failed to deassert resets (err=%d)\n", err);
goto reset_err;
}
err = generic_setup_phy(dev, &priv->phy, 0);
if (err)
goto reset_err;
@ -101,13 +67,13 @@ phy_err:
dev_err(dev, "failed to shutdown usb phy\n");
reset_err:
ret = reset_release_all(priv->resets, priv->reset_count);
ret = reset_release_bulk(&priv->resets);
if (ret)
dev_err(dev, "failed to assert all resets\n");
dev_err(dev, "failed to release resets (ret=%d)\n", ret);
clk_err:
ret = clk_release_all(priv->clocks, priv->clock_count);
ret = clk_release_bulk(&priv->clocks);
if (ret)
dev_err(dev, "failed to disable all clocks\n");
dev_err(dev, "failed to release clocks (ret=%d)\n", ret);
return err;
}
@ -125,11 +91,11 @@ static int ohci_usb_remove(struct udevice *dev)
if (ret)
return ret;
ret = reset_release_all(priv->resets, priv->reset_count);
ret = reset_release_bulk(&priv->resets);
if (ret)
return ret;
return clk_release_all(priv->clocks, priv->clock_count);
return clk_release_bulk(&priv->clocks);
}
static const struct udevice_id ohci_usb_ids[] = {

36
drivers/usb/host/usb-uclass.c
View file

@ -249,6 +249,37 @@ static void remove_inactive_children(struct uclass *uc, struct udevice *bus)
}
}
static int usb_probe_companion(struct udevice *bus)
{
struct udevice *companion_dev;
int ret;
/*
* Enforce optional companion controller is marked as such in order to
* 1st scan the primary controller, before the companion controller
* (ownership is given to companion when low or full speed devices
* have been detected).
*/
ret = uclass_get_device_by_phandle(UCLASS_USB, bus, "companion", &companion_dev);
if (!ret) {
struct usb_bus_priv *companion_bus_priv;
debug("%s is the companion of %s\n", companion_dev->name, bus->name);
companion_bus_priv = dev_get_uclass_priv(companion_dev);
companion_bus_priv->companion = true;
} else if (ret && ret != -ENOENT && ret != -ENODEV) {
/*
* Treat everything else than no companion or disabled
* companion as an error. (It may not be enabled on boards
* that have a High-Speed HUB to handle FS and LS traffic).
*/
printf("Failed to get companion (ret=%d)\n", ret);
return ret;
}
return 0;
}
int usb_init(void)
{
int controllers_initialized = 0;
@ -299,6 +330,11 @@ int usb_init(void)
printf("probe failed, error %d\n", ret);
continue;
}
ret = usb_probe_companion(bus);
if (ret)
continue;
controllers_initialized++;
usb_started = true;
}