[U-Boot] [PATCH 6/8] dm: mmc: Check that drivers have operations

[sjg at google.com]

When binding a new MMC device, make sure that it has the required
operations. Since for now we still support *not* having the operations
(with CONFIG_DM_MMC_OPS not enabled) it makes sense to add this check.

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

 drivers/mmc/mmc-uclass.c | 4 ++++
 1 file changed, 4 insertions(+)

Applied to u-boot-dm