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Diffstat (limited to 'drivers/iommu/ipmmu-vmsa.c')
-rw-r--r--drivers/iommu/ipmmu-vmsa.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/iommu/ipmmu-vmsa.c b/drivers/iommu/ipmmu-vmsa.c
index 46906a763d69..331e86839a8c 100644
--- a/drivers/iommu/ipmmu-vmsa.c
+++ b/drivers/iommu/ipmmu-vmsa.c
@@ -770,8 +770,13 @@ static const struct soc_device_attribute soc_rcar_gen3_whitelist[] = {
{ /* sentinel */ }
};
+static const char * const rcar_gen3_slave_whitelist[] = {
+};
+
static bool ipmmu_slave_whitelist(struct device *dev)
{
+ unsigned int i;
+
/*
* For R-Car Gen3 use a white list to opt-in slave devices.
* For Other SoCs, this returns true anyway.
@@ -783,7 +788,13 @@ static bool ipmmu_slave_whitelist(struct device *dev)
if (!soc_device_match(soc_rcar_gen3_whitelist))
return false;
- /* By default, do not allow use of IPMMU */
+ /* Check whether this slave device can work with the IPMMU */
+ for (i = 0; i < ARRAY_SIZE(rcar_gen3_slave_whitelist); i++) {
+ if (!strcmp(dev_name(dev), rcar_gen3_slave_whitelist[i]))
+ return true;
+ }
+
+ /* Otherwise, do not allow use of IPMMU */
return false;
}