diff options
| -rw-r--r-- | drivers/core/device.c | 26 | ||||
| -rw-r--r-- | drivers/core/root.c | 4 | ||||
| -rw-r--r-- | include/dm/device.h | 15 | ||||
| -rw-r--r-- | include/dm/platdata.h | 14 |
4 files changed, 56 insertions, 3 deletions
diff --git a/drivers/core/device.c b/drivers/core/device.c index 2d6c667564..476133f172 100644 --- a/drivers/core/device.c +++ b/drivers/core/device.c @@ -252,6 +252,7 @@ int device_bind_by_name(struct udevice *parent, bool pre_reloc_only, { struct driver *drv; uint platdata_size = 0; + int ret; drv = lists_driver_lookup_name(info->name); if (!drv) @@ -262,9 +263,16 @@ int device_bind_by_name(struct udevice *parent, bool pre_reloc_only, #if CONFIG_IS_ENABLED(OF_PLATDATA) platdata_size = info->platdata_size; #endif - return device_bind_common(parent, drv, info->name, - (void *)info->platdata, 0, ofnode_null(), platdata_size, - devp); + ret = device_bind_common(parent, drv, info->name, + (void *)info->platdata, 0, ofnode_null(), + platdata_size, devp); + if (ret) + return ret; +#if CONFIG_IS_ENABLED(OF_PLATDATA) + info->dev = *devp; +#endif + + return ret; } static void *alloc_priv(int size, uint flags) @@ -729,6 +737,18 @@ int device_get_global_by_ofnode(ofnode ofnode, struct udevice **devp) return device_get_device_tail(dev, dev ? 0 : -ENOENT, devp); } +#if CONFIG_IS_ENABLED(OF_PLATDATA) +int device_get_by_driver_info(const struct driver_info *info, + struct udevice **devp) +{ + struct udevice *dev; + + dev = info->dev; + + return device_get_device_tail(dev, dev ? 0 : -ENOENT, devp); +} +#endif + int device_find_first_child(const struct udevice *parent, struct udevice **devp) { if (list_empty(&parent->child_head)) { diff --git a/drivers/core/root.c b/drivers/core/root.c index 23a65cd71d..0de5d7c70d 100644 --- a/drivers/core/root.c +++ b/drivers/core/root.c @@ -347,6 +347,10 @@ int dm_init_and_scan(bool pre_reloc_only) { int ret; +#if CONFIG_IS_ENABLED(OF_PLATDATA) + dm_populate_phandle_data(); +#endif + ret = dm_init(IS_ENABLED(CONFIG_OF_LIVE)); if (ret) { debug("dm_init() failed: %d\n", ret); diff --git a/include/dm/device.h b/include/dm/device.h index 2cfe10766f..f5738a0cee 100644 --- a/include/dm/device.h +++ b/include/dm/device.h @@ -539,6 +539,21 @@ int device_find_global_by_ofnode(ofnode node, struct udevice **devp); int device_get_global_by_ofnode(ofnode node, struct udevice **devp); /** + * device_get_by_driver_info() - Get a device based on driver_info + * + * Locates a device by its struct driver_info, by using its reference which + * is updated during the bind process. + * + * The device is probed to activate it ready for use. + * + * @info: Struct driver_info + * @devp: Returns pointer to device if found, otherwise this is set to NULL + * @return 0 if OK, -ve on error + */ +int device_get_by_driver_info(const struct driver_info *info, + struct udevice **devp); + +/** * device_find_first_child() - Find the first child of a device * * @parent: Parent device to search diff --git a/include/dm/platdata.h b/include/dm/platdata.h index c972fa6936..cab93b071b 100644 --- a/include/dm/platdata.h +++ b/include/dm/platdata.h @@ -22,12 +22,14 @@ * @name: Driver name * @platdata: Driver-specific platform data * @platdata_size: Size of platform data structure + * @dev: Device created from this structure data */ struct driver_info { const char *name; const void *platdata; #if CONFIG_IS_ENABLED(OF_PLATDATA) uint platdata_size; + struct udevice *dev; #endif }; @@ -43,4 +45,16 @@ struct driver_info { #define U_BOOT_DEVICES(__name) \ ll_entry_declare_list(struct driver_info, __name, driver_info) +/* Get a pointer to a given driver */ +#define DM_GET_DEVICE(__name) \ + ll_entry_get(struct driver_info, __name, driver_info) + +/** + * dm_populate_phandle_data() - Populates phandle data in platda + * + * This populates phandle data with an U_BOOT_DEVICE entry get by + * DM_GET_DEVICE. The implementation of this function will be done + * by dtoc when parsing dtb. + */ +void dm_populate_phandle_data(void); #endif |