tree d6395c3b954fe81890ae07e36ee428a70a032a6a
parent 0dfc0e41172cd9f50f5f6f0182081fa03c44e0e9
author Paul Walmsley <paul@pwsan.com> 1433394594 -0600
committer Paul Walmsley <pwalmsley@nvidia.com> 1433442684 -0600

memory: tegra: mc: add support for a variable-size client ID bitfield

Recent versions of the Tegra MC hardware extend the size of the client
ID bitfield in the MC_ERR_STATUS register by one bit.  While one could
simply extend the bitfield for older hardware, that would allow data
from reserved bits into the driver code, which is generally a bad idea
on principle.  So this patch instead passes in the
MC_ERR_STATUS_CLIENT_MASK from the per-SoC MC data.

There's no MC support for T210 (yet), but when that support winds up
in the kernel, the appropriate soc->client_id_mask value for
that chip will be 0xff.

Based on an original patch by David Ung <davidu@nvidia.com>.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Paul Walmsley <pwalmsley@nvidia.com>
Cc: Thierry Reding <treding@nvidia.com>
Cc: David Ung <davidu@nvidia.com>