static int mbigen_domain_translate(struct irq_domain *d,
struct irq_fwspec *fwspec,
unsigned long *hwirq,
unsigned int *type)
{
if (is_of_node(fwspec->fwnode) || is_acpi_device_node(fwspec->fwnode)) {
if (fwspec->param_count != 2)
return -EINVAL;
if ((fwspec->param[0] > MAXIMUM_IRQ_PIN_NUM) ||
(fwspec->param[0] < RESERVED_IRQ_PER_MBIGEN_CHIP))
return -EINVAL;
else
*hwirq = fwspec->param[0];
/* If there is no valid irq type, just use the default type */
if ((fwspec->param[1] == IRQ_TYPE_EDGE_RISING) ||
(fwspec->param[1] == IRQ_TYPE_LEVEL_HIGH))
*type = fwspec->param[1];
else
return -EINVAL;
return 0;
}
return -EINVAL;
}
static int xgene_gpio_sb_domain_alloc(struct irq_domain *domain,
unsigned int virq,
unsigned int nr_irqs, void *data)
{
struct irq_fwspec *fwspec = data;
struct irq_fwspec parent_fwspec;
struct xgene_gpio_sb *priv = domain->host_data;
irq_hw_number_t hwirq;
unsigned int i;
hwirq = fwspec->param[0];
for (i = 0; i < nr_irqs; i++)
irq_domain_set_hwirq_and_chip(domain, virq + i, hwirq + i,
&xgene_gpio_sb_irq_chip, priv);
parent_fwspec.fwnode = domain->parent->fwnode;
if (is_of_node(parent_fwspec.fwnode)) {
parent_fwspec.param_count = 3;
parent_fwspec.param[0] = 0;/* SPI */
/* Skip SGIs and PPIs*/
parent_fwspec.param[1] = hwirq + priv->parent_irq_base - 32;
parent_fwspec.param[2] = fwspec->param[1];
} else if (is_fwnode_irqchip(parent_fwspec.fwnode)) {
parent_fwspec.param_count = 2;
parent_fwspec.param[0] = hwirq + priv->parent_irq_base;
parent_fwspec.param[1] = fwspec->param[1];
} else
return -EINVAL;
return irq_domain_alloc_irqs_parent(domain, virq, nr_irqs,
&parent_fwspec);
}
/**
* fwnode_property_read_string - return a string property of a firmware node
* @fwnode: Firmware node to get the property of
* @propname: Name of the property
* @val: The value is stored here
*
* Read property @propname from the given firmware node and store the value into
* @val if found. The value is checked to be a string.
*
* Return: %0 if the property was found (success),
* %-EINVAL if given arguments are not valid,
* %-ENODATA if the property does not have a value,
* %-EPROTO or %-EILSEQ if the property is not a string,
* %-ENXIO if no suitable firmware interface is present.
*/
int fwnode_property_read_string(struct fwnode_handle *fwnode,
const char *propname, const char **val)
{
if (is_of_node(fwnode))
return of_property_read_string(to_of_node(fwnode), propname, val);
else if (is_acpi_node(fwnode))
return acpi_dev_prop_read(to_a
/**
* fwnode_property_present - check if a property of a firmware node is present
* @fwnode: Firmware node whose property to check
* @propname: Name of the property
*/
bool fwnode_property_present(struct fwnode_handle *fwnode, const char *propname)
{
if (is_of_node(fwnode))
return of_property_read_bool(to_of_node(fwnode), propname);
else if (is_acpi_node(fwnode))
return !acpi_dev_prop_get(to_acpi_node(fwnode), propname, NULL);
return !!pset_prop_get(to_pset(fwnode), propname);
}
/**
* fwnode_property_read_string - return a string property of a firmware node
* @fwnode: Firmware node to get the property of
* @propname: Name of the property
* @val: The value is stored here
*
* Read property @propname from the given firmware node and store the value into
* @val if found. The value is checked to be a string.
*
* Return: %0 if the property was found (success),
* %-EINVAL if given arguments are not valid,
* %-ENODATA if the property does not have a value,
* %-EPROTO or %-EILSEQ if the property is not a string,
* %-ENXIO if no suitable firmware interface is present.
*/
int fwnode_property_read_string(struct fwnode_handle *fwnode,
const char *propname, const char **val)
{
if (is_of_node(fwnode))
return of_property_read_string(of_node(fwnode),propname, val);
else if (is_acpi_node(fwnode))
return acpi_dev_prop_read(acpi_node(fwnode), propname,
DEV_PROP_STRING, val, 1);
return -ENXIO;
}
/**
* fwnode_property_read_string - return a string property of a firmware node
* @fwnode: Firmware node to get the property of
* @propname: Name of the property
* @val: The value is stored here
*
* Read property @propname from the given firmware node and store the value into
* @val if found. The value is checked to be a string.
*
* Return: %0 if the property was found (success),
* %-EINVAL if given arguments are not valid,
* %-ENODATA if the property does not have a value,
* %-EPROTO or %-EILSEQ if the property is not a string,
* %-ENXIO if no suitable firmware interface is present.
*/
int fwnode_property_read_string(struct fwnode_handle *fwnode,
const char *propname, const char **val)
{
if (is_of_node(fwnode))
return of_property_read_string(to_of_node(fwnode), propname, val);
else if (is_acpi_node(fwnode))
return acpi_node_prop_read(fwnode, propname, DEV_PROP_STRING,
val, 1);
return pset_prop_read_array(to_pset(fwnode), propname,
DEV_PROP_STRING, val, 1);
}
/**
* fwnode_property_read_string_array - return string array property of a node
* @fwnode: Firmware node to get the property of
* @propname: Name of the property
* @val: The values are stored here or %NULL to return the number of values
* @nval: Size of the @val array
*
* Read an string list property @propname from the given firmware node and store
* them to @val if found.
*
* Return: number of values if @val was %NULL,
* %0 if the property was found (success),
* %-EINVAL if given arguments are not valid,
* %-ENODATA if the property does not have a value,
* %-EPROTO if the property is not an array of strings,
* %-EOVERFLOW if the size of the property is not as expected,
* %-ENXIO if no suitable firmware interface is present.
*/
int fwnode_property_read_string_array(struct fwnode_handle *fwnode,
const char *propname, const char **val,
size_t nval)
{
if (is_of_node(fwnode))
return val ?
of_property_read_string_array(to_of_node(fwnode),
propname, val, nval) :
of_property_count_strings(to_of_node(fwnode), propname);
else if (is_acpi_node(fwnode))
return acpi_dev_prop_read(to_acpi_node(fwnode), propname,
DEV_PROP_STRING, val, nval);
return pset_prop_read_array(to_pset(fwnode), propname,
DEV_PROP_STRING, val, nval);
}
/**
* fwnode_get_reference_node - Find the firmware node referenced
* @fwnode: Firmware node to get the property from.
* @propname: Name of the property
* @index: Index of the reference
*
* Returns referenced fwnode handler pointer, or an NULL if not found
*/
struct fwnode_handle *fwnode_get_reference_node(struct fwnode_handle *fwnode,
const char *propname, int index)
{
if (is_of_node(fwnode)) {
struct device_node *np;
np = of_parse_phandle(to_of_node(fwnode), propname, index);
if(!np)
return NULL;
return &np->fwnode;
} else if (is_acpi_node(fwnode)) {
struct acpi_device *adev;
adev = acpi_dev_get_reference_device(to_acpi_device_node(fwnode),
propname, index);
if(!adev)
return NULL;
return acpi_fwnode_handle(adev);
}
return NULL;
}
static int imx_gpc_domain_translate(struct irq_domain *d,
struct irq_fwspec *fwspec,
unsigned long *hwirq,
unsigned int *type)
{
if (is_of_node(fwspec->fwnode)) {
if (fwspec->param_count != 3)
return -EINVAL;
/* No PPI should point to this domain */
if (fwspec->param[0] != 0)
return -EINVAL;
*hwirq = fwspec->param[1];
*type = fwspec->param[2];
return 0;
}
return -EINVAL;
}
static int __fwnode_property_read_string_array(struct fwnode_handle *fwnode,
const char *propname,
const char **val, size_t nval)
{
if (is_of_node(fwnode))
return val ?
of_property_read_string_array(to_of_node(fwnode),
propname, val, nval) :
of_property_count_strings(to_of_node(fwnode), propname);
else if (is_acpi_node(fwnode))
return acpi_node_prop_read(fwnode, propname, DEV_PROP_STRING,
val, nval);
else if (is_pset_node(fwnode))
return val ?
pset_prop_read_string_array(to_pset_node(fwnode),
propname, val, nval) :
pset_prop_count_elems_of_size(to_pset_node(fwnode),
propname,
sizeof(const char *));
return -ENXIO;
}
/**
* device_get_named_child_node - Return first matching named child node handle
* @dev: Device to find the named child node for.
* @childname: String to match child node name against.
*/
struct fwnode_handle *device_get_named_child_node(struct device *dev,
const char *childname)
{
struct fwnode_handle *child;
/*
* Find first matching named child node of this device.
* For ACPI this will be a data only sub-node.
*/
device_for_each_child_node(dev, child) {
if (is_of_node(child)) {
if (!of_node_cmp(to_of_node(child)->name, childname))
return child;
} else if (is_acpi_data_node(child)) {
if (acpi_data_node_match(child, childname))
return child;
}
}
return NULL;
}
/**
* fwnode_handle_put - Drop reference to a device node
* @fwnode: Pointer to the device node to drop the reference to.
*
* This has to be used when terminating device_for_each_child_node() iteration
* with break or return to prevent stale device node references from being left
* behind.
*/
void fwnode_handle_put(struct fwnode_handle *fwnode)
{
if (is_of_node(fwnode))
of_node_put(to_of_node(fwnode));
}
static int xhci_plat_probe(struct platform_device *pdev)
{
const struct xhci_plat_priv *priv_match;
const struct hc_driver *driver;
struct device *sysdev;
struct xhci_hcd *xhci;
struct resource *res;
struct usb_hcd *hcd;
struct clk *clk;
int ret;
int irq;
if (usb_disabled())
return -ENODEV;
driver = &xhci_plat_hc_driver;
irq = platform_get_irq(pdev, 0);
if (irq < 0)
return irq;
/*
* sysdev must point to a device that is known to the system firmware
* or PCI hardware. We handle these three cases here:
* 1. xhci_plat comes from firmware
* 2. xhci_plat is child of a device from firmware (dwc3-plat)
* 3. xhci_plat is grandchild of a pci device (dwc3-pci)
*/
for (sysdev = &pdev->dev; sysdev; sysdev = sysdev->parent) {
if (is_of_node(sysdev->fwnode) ||
is_acpi_device_node(sysdev->fwnode))
break;
#ifdef CONFIG_PCI
else if (sysdev->bus == &pci_bus_type)
break;
#endif
}
if (!sysdev)
sysdev = &pdev->dev;
/* Try to set 64-bit DMA first */
if (WARN_ON(!sysdev->dma_mask))
/* Platform did not initialize dma_mask */
ret = dma_coerce_mask_and_coherent(sysdev,
DMA_BIT_MASK(64));
else
ret = dma_set_mask_and_coherent(sysdev, DMA_BIT_MASK(64));
/* If seting 64-bit DMA mask fails, fall back to 32-bit DMA mask */
if (ret) {
ret = dma_set_mask_and_coherent(sysdev, DMA_BIT_MASK(32));
if (ret)
return ret;
}
pm_runtime_set_active(&pdev->dev);
pm_runtime_enable(&pdev->dev);
pm_runtime_get_noresume(&pdev->dev);
hcd = __usb_create_hcd(driver, sysdev, &pdev->dev,
dev_name(&pdev->dev), NULL);
if (!hcd) {
ret = -ENOMEM;
goto disable_runtime;
}
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
hcd->regs = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(hcd->regs)) {
ret = PTR_ERR(hcd->regs);
goto put_hcd;
}
hcd->rsrc_start = res->start;
hcd->rsrc_len = resource_size(res);
/*
* Not all platforms have a clk so it is not an error if the
* clock does not exists.
*/
clk = devm_clk_get(&pdev->dev, NULL);
if (!IS_ERR(clk)) {
ret = clk_prepare_enable(clk);
if (ret)
goto put_hcd;
} else if (PTR_ERR(clk) == -EPROBE_DEFER) {
ret = -EPROBE_DEFER;
goto put_hcd;
}
xhci = hcd_to_xhci(hcd);
priv_match = of_device_get_match_data(&pdev->dev);
if (priv_match) {
struct xhci_plat_priv *priv = hcd_to_xhci_priv(hcd);
/* Just copy data for now */
if (priv_match)
*priv = *priv_match;
}
device_wakeup_enable(hcd->self.controller);
xhci->clk = clk;
xhci->main_hcd = hcd;
xhci->shared_hcd = __usb_create_hcd(driver, sysdev, &pdev->dev,
dev_name(&pdev->dev), hcd);
if (!xhci->shared_hcd) {
ret = -ENOMEM;
goto disable_clk;
}
if (device_property_read_bool(sysdev, "usb2-lpm-disable"))
xhci->quirks |= XHCI_HW_LPM_DISABLE;
if (device_property_read_bool(sysdev, "usb3-lpm-capable"))
xhci->quirks |= XHCI_LPM_SUPPORT;
if (device_property_read_bool(&pdev->dev, "quirk-broken-port-ped"))
xhci->quirks |= XHCI_BROKEN_PORT_PED;
/* imod_interval is the interrupt moderation value in nanoseconds. */
xhci->imod_interval = 40000;
device_property_read_u32(sysdev, "imod-interval-ns",
&xhci->imod_interval);
hcd->usb_phy = devm_usb_get_phy_by_phandle(sysdev, "usb-phy", 0);
if (IS_ERR(hcd->usb_phy)) {
ret = PTR_ERR(hcd->usb_phy);
if (ret == -EPROBE_DEFER)
goto put_usb3_hcd;
hcd->usb_phy = NULL;
} else {
ret = usb_phy_init(hcd->usb_phy);
if (ret)
goto put_usb3_hcd;
}
ret = usb_add_hcd(hcd, irq, IRQF_SHARED);
if (ret)
goto disable_usb_phy;
if (HCC_MAX_PSA(xhci->hcc_params) >= 4)
xhci->shared_hcd->can_do_streams = 1;
ret = usb_add_hcd(xhci->shared_hcd, irq, IRQF_SHARED);
if (ret)
goto dealloc_usb2_hcd;
device_enable_async_suspend(&pdev->dev);
pm_runtime_put_noidle(&pdev->dev);
/*
* Prevent runtime pm from being on as default, users should enable
* runtime pm using power/control in sysfs.
*/
pm_runtime_forbid(&pdev->dev);
return 0;
dealloc_usb2_hcd:
usb_remove_hcd(hcd);
disable_usb_phy:
usb_phy_shutdown(hcd->usb_phy);
put_usb3_hcd:
usb_put_hcd(xhci->shared_hcd);
disable_clk:
if (!IS_ERR(clk))
clk_disable_unprepare(clk);
put_hcd:
usb_put_hcd(hcd);
disable_runtime:
pm_runtime_put_noidle(&pdev->dev);
pm_runtime_disable(&pdev->dev);
return ret;
}
/*
* Translate properties into platform_data
*/
static struct gpio_keys_platform_data *
gpio_keys_get_devtree_pdata(struct device *dev)
{
struct gpio_keys_platform_data *pdata;
struct gpio_keys_button *button;
struct fwnode_handle *child;
int nbuttons;
nbuttons = device_get_child_node_count(dev);
if (nbuttons == 0)
return ERR_PTR(-ENODEV);
pdata = devm_kzalloc(dev,
sizeof(*pdata) + nbuttons * sizeof(*button),
GFP_KERNEL);
if (!pdata)
return ERR_PTR(-ENOMEM);
button = (struct gpio_keys_button *)(pdata + 1);
pdata->buttons = button;
pdata->nbuttons = nbuttons;
pdata->rep = device_property_read_bool(dev, "autorepeat");
device_property_read_string(dev, "label", &pdata->name);
device_for_each_child_node(dev, child) {
if (is_of_node(child))
button->irq =
irq_of_parse_and_map(to_of_node(child), 0);
if (fwnode_property_read_u32(child, "linux,code",
&button->code)) {
dev_err(dev, "Button without keycode\n");
fwnode_handle_put(child);
return ERR_PTR(-EINVAL);
}
fwnode_property_read_string(child, "label", &button->desc);
if (fwnode_property_read_u32(child, "linux,input-type",
&button->type))
button->type = EV_KEY;
button->wakeup =
fwnode_property_read_bool(child, "wakeup-source") ||
/* legacy name */
fwnode_property_read_bool(child, "gpio-key,wakeup");
button->can_disable =
fwnode_property_read_bool(child, "linux,can-disable");
if (fwnode_property_read_u32(child, "debounce-interval",
&button->debounce_interval))
button->debounce_interval = 5;
button++;
}
return pdata;
}
