MdeModulePkg/SdMmcPciHcDxe: Add function to start SD clock

[mirror_edk2.git] / MdeModulePkg / Bus / Pci / SdMmcPciHcDxe / SdMmcPciHci.h

diff --git a/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHci.h b/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHci.h
index 826e851b04536edfc5609f9dd35161c466df9f10..4753bb6864326bf28d13ee4bd0b6a99a8708a8e5 100644 (file)
--- a/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHci.h
+++ b/MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHci.h
@@ -478,6 +478,21 @@ SdMmcHcStopClock (
   IN UINT8                  Slot\r
   );\r
 \r
+/**\r
+  Start the SD clock.\r
+\r
+  @param[in] PciIo  The PCI IO protocol instance.\r
+  @param[in] Slot   The slot number.\r
+\r
+  @retval EFI_SUCCESS  Succeeded to start the SD clock.\r
+  @rtval  Others       Failed to start the SD clock.\r
+**/\r
+EFI_STATUS\r
+SdMmcHcStartSdClock (\r
+  IN EFI_PCI_IO_PROTOCOL  *PciIo,\r
+  IN UINT8                Slot\r
+  );\r
+\r
 /**\r
   SD/MMC bus power control.\r
 \r