mfd: bd9576: Add safety limit/monitoring registers

ROHM BD9576 contains safety features like over/under voltage detection,
over curren detection and over temperature detection. Add the
configuration register information.

Signed-off-by: Matti Vaittinen <[e-mail]>
Signed-off-by: Lee Jones <[e-mail]>

include/linux/mfd/rohm-bd957x.h

···
 #define BD957X_REG_VOUT4_TUNE		0x59
 #define BD957X_REG_VOUTL1_TUNE		0x5c
 
+#define BD9576_REG_VOUT1_OVD		0x51
+#define BD9576_REG_VOUT1_UVD		0x52
+#define BD9576_REG_VOUT2_OVD		0x54
+#define BD9576_REG_VOUT2_UVD		0x55
+#define BD9576_REG_VOUT3_OVD		0x57
+#define BD9576_REG_VOUT3_UVD		0x58
+#define BD9576_REG_VOUT4_OVD		0x5a
+#define BD9576_REG_VOUT4_UVD		0x5b
+#define BD9576_REG_VOUTL1_OVD		0x5d
+#define BD9576_REG_VOUTL1_UVD		0x5e
+
+#define BD9576_MASK_XVD			0x7f
+
+#define BD9576_REG_VOUT1S_OCW		0x5f
+#define BD9576_REG_VOUT1S_OCP		0x60
+
+#define BD9576_MASK_VOUT1S_OCW		0x3f
+#define BD9576_MASK_VOUT1S_OCP		0x3f
+
 #define BD957X_MAX_REGISTER		0x61
 
 #endif