ASoC: wm2000: Add register readability information

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 30 insertions, 0 deletions

diff --git a/sound/soc/codecs/wm2000.c b/sound/soc/codecs/wm2000.c
index 52f0a19217c4..78a148f0a8ef 100644
--- a/sound/soc/codecs/wm2000.c
+++ b/sound/soc/codecs/wm2000.c
@@ -691,9 +691,39 @@ static int wm2000_resume(struct snd_soc_codec *codec)
 #define wm2000_resume NULL
 #endif
 
+static bool wm2000_readable_reg(struct device *dev, unsigned int reg)
+{
+        switch (reg) {
+        case WM2000_REG_SYS_START:
+        case WM2000_REG_SPEECH_CLARITY:
+        case WM2000_REG_SYS_WATCHDOG:
+        case WM2000_REG_ANA_VMID_PD_TIME:
+        case WM2000_REG_ANA_VMID_PU_TIME:
+        case WM2000_REG_CAT_FLTR_INDX:
+        case WM2000_REG_CAT_GAIN_0:
+        case WM2000_REG_SYS_STATUS:
+        case WM2000_REG_SYS_MODE_CNTRL:
+        case WM2000_REG_SYS_START0:
+        case WM2000_REG_SYS_START1:
+        case WM2000_REG_ID1:
+        case WM2000_REG_ID2:
+        case WM2000_REG_REVISON:
+        case WM2000_REG_SYS_CTL1:
+        case WM2000_REG_SYS_CTL2:
+        case WM2000_REG_ANC_STAT:
+        case WM2000_REG_IF_CTL:
+                return true;
+        default:
+                return false;
+        }
+}
+
 static const struct regmap_config wm2000_regmap = {
         .reg_bits = 8,
         .val_bits = 8,
+
+        .max_register = WM2000_REG_IF_CTL,
+        .readable_reg = wm2000_readable_reg,
 };
 
 static int wm2000_probe(struct snd_soc_codec *codec)