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dm: core: Add device_foreach_child()

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We have a 'safe' version of this function but sometimes it is not needed.
Add a normal version too and update a few places that can use it.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Simon Glass 2019-09-25 08:55:56 -06:00 committed by Bin Meng
parent 4805a7af8e
commit e5f7390458
3 changed files with 13 additions and 4 deletions
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4
arch/arm/mach-uniphier/pinctrl-glue.c
View File

@ -13,14 +13,14 @@
int uniphier_pin_init(const char *pinconfig_name)
{
struct udevice *pctldev, *config, *next;
struct udevice *pctldev, *config;
int ret;
ret = uclass_first_device(UCLASS_PINCTRL, &pctldev);
if (ret)
return ret;
device_foreach_child_safe(config, next, pctldev) {
device_foreach_child(config, pctldev) {
if (strcmp(config->name, pinconfig_name))
continue;

4
drivers/block/blk-uclass.c
View File

@ -142,9 +142,9 @@ struct blk_desc *blk_get_devnum_by_typename(const char *if_typename, int devnum)
*/
struct blk_desc *blk_get_by_device(struct udevice *dev)
{
struct udevice *child_dev, *next;
struct udevice *child_dev;
device_foreach_child_safe(child_dev, next, dev) {
device_foreach_child(child_dev, dev) {
if (device_get_uclass_id(child_dev) != UCLASS_BLK)
continue;

9
include/dm/device.h
View File

@ -679,6 +679,15 @@ static inline bool device_is_on_pci_bus(struct udevice *dev)
#define device_foreach_child_safe(pos, next, parent) \
list_for_each_entry_safe(pos, next, &parent->child_head, sibling_node)
/**
* device_foreach_child() - iterate through child devices
*
* @pos: struct udevice * for the current device
* @parent: parent device to scan
*/
#define device_foreach_child(pos, parent) \
list_for_each_entry(pos, &parent->child_head, sibling_node)
/**
* dm_scan_fdt_dev() - Bind child device in a the device tree
*