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-rw-r--r--drivers/bus/mips_cdmm.c14
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/bus/mips_cdmm.c b/drivers/bus/mips_cdmm.c
index ab3bde16ecb4..1c543effe062 100644
--- a/drivers/bus/mips_cdmm.c
+++ b/drivers/bus/mips_cdmm.c
@@ -332,6 +332,18 @@ static phys_addr_t mips_cdmm_cur_base(void)
}
/**
+ * mips_cdmm_phys_base() - Choose a physical base address for CDMM region.
+ *
+ * Picking a suitable physical address at which to map the CDMM region is
+ * platform specific, so this weak function can be overridden by platform
+ * code to pick a suitable value if none is configured by the bootloader.
+ */
+phys_addr_t __weak mips_cdmm_phys_base(void)
+{
+ return 0;
+}
+
+/**
* mips_cdmm_setup() - Ensure the CDMM bus is initialised and usable.
* @bus: Pointer to bus information for current CPU.
* IS_ERR(bus) is checked, so no need for caller to check.
@@ -368,7 +380,7 @@ static int mips_cdmm_setup(struct mips_cdmm_bus *bus)
if (!bus->phys)
bus->phys = mips_cdmm_cur_base();
/* Otherwise, ask platform code for suggestions */
- if (!bus->phys && mips_cdmm_phys_base)
+ if (!bus->phys)
bus->phys = mips_cdmm_phys_base();
/* Otherwise, copy what other CPUs have done */
if (!bus->phys)