HISI LPC: Add Kconfig MFD_CORE dependency

For ACPI support of the HiSilicon LPC driver we depend
on MFD_CORE config.

Currently the HiSi LPC Kconfig entry does not define this
dependency, so add it.

The reason for depending on MFD_CORE in the driver is
that we model the LPC host as an MFD, in that a platform
device will be created for each device on the bus.

We do this as we need to modify the resources of these
derived platform devices, something which we should not
do to the original devices created in the ACPI scan.
Details in 8a14ec2bbbb0 ("HISI LPC: Add ACPI support").

Fixes: 8a14ec2bbbb0 ("HISI LPC: Add ACPI support")
Reported-and-tested-by: Tan Xiaojun <tanxiaojun@huawei.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

diff --git a/drivers/bus/Kconfig b/drivers/bus/Kconfig
index d1c0b60e9326f5f5a0b0db56ac7d328283f27506..6dc177bf4c42f6fce5b9787072aba2b7aa94e98c 100644 (file)
--- a/drivers/bus/Kconfig
+++ b/drivers/bus/Kconfig
@@ -33,6 +33,7 @@ config HISILICON_LPC
        bool "Support for ISA I/O space on HiSilicon Hip06/7"
        depends on ARM64 && (ARCH_HISI || COMPILE_TEST)
        select INDIRECT_PIO
+       select MFD_CORE if ACPI
        help
          Driver to enable I/O access to devices attached to the Low Pin
          Count bus on the HiSilicon Hip06/7 SoC.