[PATCH/RFC 03/03] iommu/ipmmu-vmsa: Add SYS-DMAC devices as whitelist

[Magnus Damm]

From: Magnus Damm <damm+rene...@opensource.se>

For testing purpose add a list of allowed SYS-DMAC devices to
the IPMMU driver. These may be used together with SCIF serial
ports to validate some basic operation.

Not-Yet-Signed-off-by: Magnus Damm <damm+rene...@opensource.se>
---

 drivers/iommu/ipmmu-vmsa.c |    7 +++++++
 1 file changed, 7 insertions(+)

--- 0024/drivers/iommu/ipmmu-vmsa.c
+++ work/drivers/iommu/ipmmu-vmsa.c     2017-11-22 13:26:36.270607110 +0900
@@ -756,6 +756,13 @@ static int ipmmu_init_platform_device(st
 
 static bool ipmmu_slave_whitelist(struct device *dev)
 {
+       if (!strcmp(dev_name(dev), "e6700000.dma-controller"))
+               return true;
+       if (!strcmp(dev_name(dev), "e7300000.dma-controller"))
+               return true;
+       if (!strcmp(dev_name(dev), "e7310000.dma-controller"))
+               return true;
+  
        /* By default, do not allow use of IPMMU */
        return false;
 }