mfd: wm8997: Mark INTERRUPT_STATUS_2_MASK as readable

Technically this register is not used on wm8997 however the regmap core
requires a continuous block of IRQs. The simplest solution is just to
add the register.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>

diff --git a/drivers/mfd/wm8997-tables.c b/drivers/mfd/wm8997-tables.c
index 510da3b5232417bb4f216b2ef6555b99cdc564f0..f44d195d44964ac4306c551613c94d40ec62bc11 100644 (file)
--- a/drivers/mfd/wm8997-tables.c
+++ b/drivers/mfd/wm8997-tables.c
@@ -670,6 +670,7 @@ static const struct reg_default wm8997_reg_default[] = {
        { 0x00000C23, 0x0000 },    /* R3107  - Misc Pad Ctrl 4 */
        { 0x00000C24, 0x0000 },    /* R3108  - Misc Pad Ctrl 5 */
        { 0x00000D08, 0xFFFF },    /* R3336  - Interrupt Status 1 Mask */
+       { 0x00000D09, 0xFFFF },    /* R3337  - Interrupt Status 2 Mask */
        { 0x00000D0A, 0xFFFF },    /* R3338  - Interrupt Status 3 Mask */
        { 0x00000D0B, 0xFFFF },    /* R3339  - Interrupt Status 4 Mask */
        { 0x00000D0C, 0xFEFF },    /* R3340  - Interrupt Status 5 Mask */
@@ -1328,6 +1329,7 @@ static bool wm8997_readable_register(struct device *dev, unsigned int reg)
        case ARIZONA_INTERRUPT_STATUS_4:
        case ARIZONA_INTERRUPT_STATUS_5:
        case ARIZONA_INTERRUPT_STATUS_1_MASK:
+       case ARIZONA_INTERRUPT_STATUS_2_MASK:
        case ARIZONA_INTERRUPT_STATUS_3_MASK:
        case ARIZONA_INTERRUPT_STATUS_4_MASK:
        case ARIZONA_INTERRUPT_STATUS_5_MASK: