SD card reader only works after a suspend/resume

Hi,


I discovered this by chance.

The SD card reader in my laptop has never worked, but now I noticed it 
does after suspending and resuming.

The controller is probed and attached on boot:

sdhci_acpi1: <Intel Bay Trail/Braswell SDXC Controller> iomem 
0x90a00000-0x90a00fff irq 47 on acpi0

But nothing happens if I put a card in. Unless I suspend and resume:

mmc1: <MMC/SD bus> on sdhci_acpi1
mmcsd0: 32GB <SDHC SL32G 8.0 SN 19CD02C0 MFG 11/2014 by 3 SD> at mmc1 
50.0MHz/4bit/65535-block

Then I can remove and replug cards and it seems to work just fine.


Jakob