mfd: Correct revision display for WM1811 revision D

As WM1811 revision C was transparent to software the revision IDs for
subsequent revisions are one less than they would normally be. Correct
for this in log messages.

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

1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/mfd/wm8994-core.c b/drivers/mfd/wm8994-core.c
index f9c4016baea6..12bd0eed0b2e 100644
--- a/drivers/mfd/wm8994-core.c
+++ b/drivers/mfd/wm8994-core.c
@@ -460,6 +460,11 @@ static int wm8994_device_init(struct wm8994 *wm8994, int irq)
                         break;
                 }
                 break;
+        case WM1811:
+                /* Revision C did not change the relevant layer */
+                if (ret > 1)
+                        ret++;
+                break;
         default:
                 break;
         }