mfd: wm5102: Mark DSP memory regions as volatile and readable

We can cache some of them but this is simpler for now.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

1 files changed, 7 insertions, 1 deletions

diff --git a/drivers/mfd/wm5102-tables.c b/drivers/mfd/wm5102-tables.c
index 74f9853b6dc4..6655c9e89e92 100644
--- a/drivers/mfd/wm5102-tables.c
+++ b/drivers/mfd/wm5102-tables.c
@@ -1826,7 +1826,13 @@ static bool wm5102_readable_register(struct device *dev, unsigned int reg)
         case ARIZONA_DSP1_STATUS_3:
                 return true;
         default:
-                return false;
+                if ((reg >= 0x100000 && reg < 0x106000) ||
+                    (reg >= 0x180000 && reg < 0x180800) ||
+                    (reg >= 0x190000 && reg < 0x194800) ||
+                    (reg >= 0x1a8000 && reg < 0x1a9800))
+                        return true;
+                else
+                        return false;
         }
 }