mfd: wm5102: Expose DRE control registers

Certain use cases may require specific DRE settings so expose the
necessary registers.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

1 files changed, 8 insertions, 1 deletions

diff --git a/drivers/mfd/wm5102-tables.c b/drivers/mfd/wm5102-tables.c
index 155c4a1a6a99..802dd3cb18cf 100644
--- a/drivers/mfd/wm5102-tables.c
+++ b/drivers/mfd/wm5102-tables.c
@@ -65,7 +65,8 @@ static const struct reg_default wm5102_revb_patch[] = {
         { 0x418, 0xa080 },
         { 0x420, 0xa080 },
         { 0x428, 0xe000 },
-        { 0x443, 0xDC1A },
+        { 0x442, 0x3F0A },
+        { 0x443, 0xDC1F },
         { 0x4B0, 0x0066 },
         { 0x458, 0x000b },
         { 0x212, 0x0000 },
@@ -424,6 +425,9 @@ static const struct reg_default wm5102_reg_default[] = {
         { 0x00000435, 0x0180 },   /* R1077  - DAC Digital Volume 5R */ 
         { 0x00000436, 0x0081 },   /* R1078  - DAC Volume Limit 5R */
         { 0x00000437, 0x0200 },   /* R1079  - Noise Gate Select 5R */
+        { 0x00000440, 0x8FFF },   /* R1088  - DRE Enable */
+        { 0x00000442, 0x3F0A },   /* R1090  - DRE Control 2 */
+        { 0x00000443, 0xDC1F },   /* R1090  - DRE Control 3 */
         { 0x00000450, 0x0000 },   /* R1104  - DAC AEC Control 1 */ 
         { 0x00000458, 0x000B },   /* R1112  - Noise Gate Control */
         { 0x00000490, 0x0069 },   /* R1168  - PDM SPK1 CTRL 1 */ 
@@ -1197,6 +1201,9 @@ static bool wm5102_readable_register(struct device *dev, unsigned int reg)
         case ARIZONA_DAC_DIGITAL_VOLUME_5R:
         case ARIZONA_DAC_VOLUME_LIMIT_5R:
         case ARIZONA_NOISE_GATE_SELECT_5R:
+        case ARIZONA_DRE_ENABLE:
+        case ARIZONA_DRE_CONTROL_2:
+        case ARIZONA_DRE_CONTROL_3:
         case ARIZONA_DAC_AEC_CONTROL_1:
         case ARIZONA_NOISE_GATE_CONTROL:
         case ARIZONA_PDM_SPK1_CTRL_1: