[PATCH 12/21] dm: core: Add a way to read platdata for all child devices

[sjg at google.com]

When generating ACPI tables we need to make sure that all devices have
read their platform data, so that they can generate the tables correctly.

Rather than adding this code in ACPI, create a core function to handle it.

Signed-off-by: Simon Glass <sjg at chromium.org>
---

 drivers/core/device.c | 36 ++++++++++++++++++++++++++++++++++++
 include/dm/device.h   | 42 ++++++++++++++++++++++++++++++++++++++++++
 include/dm/read.h     |  3 ++-
 test/dm/test-fdt.c    | 19 +++++++++++++++++++
 4 files changed, 99 insertions(+), 1 deletion(-)

Applied to u-boot-dm, thanks!