static int gswip_gphy_fw_list(struct gswip_priv *priv,
struct device_node *gphy_fw_list_np, u32 version)
{
struct device *dev = priv->dev;
struct device_node *gphy_fw_np;
const struct of_device_id *match;
int err;
int i = 0;
/* The VRX200 rev 1.1 uses the GSWIP 2.0 and needs the older
* GPHY firmware. The VRX200 rev 1.2 uses the GSWIP 2.1 and also
* needs a different GPHY firmware.
*/
if (of_device_is_compatible(gphy_fw_list_np, "lantiq,xrx200-gphy-fw")) {
switch (version) {
case GSWIP_VERSION_2_0:
priv->gphy_fw_name_cfg = &xrx200a1x_gphy_data;
break;
case GSWIP_VERSION_2_1:
priv->gphy_fw_name_cfg = &xrx200a2x_gphy_data;
break;
default:
dev_err(dev, "unknown GSWIP version: 0x%x", version);
return -ENOENT;
}
}
match = of_match_node(xway_gphy_match, gphy_fw_list_np);
if (match && match->data)
priv->gphy_fw_name_cfg = match->data;
if (!priv->gphy_fw_name_cfg) {
dev_err(dev, "GPHY compatible type not supported");
return -ENOENT;
}
priv->num_gphy_fw = of_get_available_child_count(gphy_fw_list_np);
if (!priv->num_gphy_fw)
return -ENOENT;
priv->rcu_regmap = syscon_regmap_lookup_by_phandle(gphy_fw_list_np,
"lantiq,rcu");
if (IS_ERR(priv->rcu_regmap))
return PTR_ERR(priv->rcu_regmap);
priv->gphy_fw = devm_kmalloc_array(dev, priv->num_gphy_fw,
sizeof(*priv->gphy_fw),
GFP_KERNEL | __GFP_ZERO);
if (!priv->gphy_fw)
return -ENOMEM;
for_each_available_child_of_node(gphy_fw_list_np, gphy_fw_np) {
err = gswip_gphy_fw_probe(priv, &priv->gphy_fw[i],
gphy_fw_np, i);
if (err)
goto remove_gphy;
i++;
}
struct ion_platform_data *ion_parse_dt(struct platform_device *pdev,
struct ion_of_heap *compatible)
{
int num_heaps, ret;
const struct device_node *dt_node = pdev->dev.of_node;
struct device_node *node;
struct ion_platform_heap *heaps;
struct ion_platform_data *data;
int i = 0;
num_heaps = of_get_available_child_count(dt_node);
if (!num_heaps)
return ERR_PTR(-EINVAL);
heaps = devm_kzalloc(&pdev->dev,
sizeof(struct ion_platform_heap) * num_heaps,
GFP_KERNEL);
if (!heaps)
return ERR_PTR(-ENOMEM);
data = devm_kzalloc(&pdev->dev, sizeof(struct ion_platform_data),
GFP_KERNEL);
if (!data)
return ERR_PTR(-ENOMEM);
for_each_available_child_of_node(dt_node, node) {
struct platform_device *heap_pdev;
ret = ion_parse_dt_heap_common(node, &heaps[i], compatible);
if (ret)
return ERR_PTR(ret);
heap_pdev = of_platform_device_create(node, heaps[i].name,
&pdev->dev);
if (!heap_pdev)
return ERR_PTR(-ENOMEM);
heap_pdev->dev.platform_data = &heaps[i];
heaps[i].priv = &heap_pdev->dev;
ret = ion_setup_heap_common(pdev, node, &heaps[i]);
if (ret)
goto out_err;
i++;
}
data->heaps = heaps;
data->nr = num_heaps;
return data;
out_err:
for ( ; i >= 0; i--)
if (heaps[i].priv)
of_device_unregister(to_platform_device(heaps[i].priv));
return ERR_PTR(ret);
}
void __init device_tree_init(void)
{
struct device_node *np;
unflatten_and_copy_device_tree();
/* Disable SMP boot unless both CPUs are listed in DT and !disabled */
np = of_find_node_by_name(NULL, "cpus");
if (np && of_get_available_child_count(np) <= 1)
bmips_smp_enabled = 0;
of_node_put(np);
}
static int pm8xxx_xoadc_parse_channels(struct pm8xxx_xoadc *adc,
struct device_node *np)
{
struct device_node *child;
struct pm8xxx_chan_info *ch;
int ret;
int i;
adc->nchans = of_get_available_child_count(np);
if (!adc->nchans) {
dev_err(adc->dev, "no channel children\n");
return -ENODEV;
}
dev_dbg(adc->dev, "found %d ADC channels\n", adc->nchans);
adc->iio_chans = devm_kcalloc(adc->dev, adc->nchans,
sizeof(*adc->iio_chans), GFP_KERNEL);
if (!adc->iio_chans)
return -ENOMEM;
adc->chans = devm_kcalloc(adc->dev, adc->nchans,
sizeof(*adc->chans), GFP_KERNEL);
if (!adc->chans)
return -ENOMEM;
i = 0;
for_each_available_child_of_node(np, child) {
ch = &adc->chans[i];
ret = pm8xxx_xoadc_parse_channel(adc->dev, child,
adc->variant->channels,
&adc->iio_chans[i],
ch);
if (ret) {
of_node_put(child);
return ret;
}
i++;
}
