return count;
}
-EXPORT_SYMBOL_GPL(device_get_child_node_count);
+EXPORT_SYMBOL_GPL(fwnode_get_child_node_count);
+ /**
+ * fwnode_get_named_child_node_count - number of child nodes with given name
+ * @fwnode: Node which child nodes are counted.
+ * @name: String to match child node name against.
+ *
+ * Scan child nodes and count all the nodes with a specific name. Potential
+ * 'number' -ending after the 'at sign' for scanned names is ignored.
+ * E.g.::
+ * fwnode_get_named_child_node_count(fwnode, "channel");
+ * would match all the nodes::
+ * channel { }, channel@0 {}, channel@0xabba {}...
+ *
+ * Return: the number of child nodes with a matching name for a given device.
+ */
+ unsigned int fwnode_get_named_child_node_count(const struct fwnode_handle *fwnode,
+ const char *name)
+ {
+ struct fwnode_handle *child;
+ unsigned int count = 0;
+
+ fwnode_for_each_named_child_node(fwnode, child, name)
+ count++;
+
+ return count;
+ }
+ EXPORT_SYMBOL_GPL(fwnode_get_named_child_node_count);
+
bool device_dma_supported(const struct device *dev)
{
return fwnode_call_bool_op(dev_fwnode(dev), device_dma_supported);
if (ret)
goto error_ret;
- chan = &indio_dev->channels[ch + 1];
+ chan = &indio_dev->channels[ch];
+ realbits = chan->scan_type.realbits;
- if (chan->scan_type.sign == 'u') {
- if (realbits > 16)
- *val = st->data.buf32[ch];
- else
- *val = st->data.buf16[ch];
- } else {
- if (realbits > 16)
- *val = sign_extend32(st->data.buf32[ch], realbits - 1);
- else
- *val = sign_extend32(st->data.buf16[ch], realbits - 1);
- }
+ if (realbits > 16)
+ *val = st->data.buf32[ch];
+ else
+ *val = st->data.buf16[ch];
+
+ *val &= GENMASK(realbits - 1, 0);
+
+ if (chan->scan_type.sign == 's')
+ *val = sign_extend32(*val, realbits - 1);
error_ret:
if (!st->gpio_convst) {
int fwnode_irq_get(const struct fwnode_handle *fwnode, unsigned int index);
int fwnode_irq_get_byname(const struct fwnode_handle *fwnode, const char *name);
-unsigned int device_get_child_node_count(const struct device *dev);
+unsigned int fwnode_get_child_node_count(const struct fwnode_handle *fwnode);
+
+static inline unsigned int device_get_child_node_count(const struct device *dev)
+{
+ return fwnode_get_child_node_count(dev_fwnode(dev));
+}
+ unsigned int fwnode_get_named_child_node_count(const struct fwnode_handle *fwnode,
+ const char *name);
+ static inline unsigned int device_get_named_child_node_count(const struct device *dev,
+ const char *name)
+ {
+ return fwnode_get_named_child_node_count(dev_fwnode(dev), name);
+ }
+
static inline int device_property_read_u8(const struct device *dev,
const char *propname, u8 *val)
{