ps8815: Add displayport related settings
This patch adds one more register for displayport related settings
with ps8815.
BRANCH=firmware-volteer-13672.B-main
TEST=make buildall
/* Vendor defined registers */
#define PS8815_P1_REG_HW_REVISION 0xF0
+/*
+ * Below register is defined from Parade PS8815 Register Table,
+ * See b:189587527 for more detail.
+ */
+
+/* Displayport related settings */
+#define PS8815_REG_DP_EQ_SETTING 0xF8
+#define PS8815_AUTO_EQ_DISABLE BIT(7)
+#define PS8815_DPEQ_LOSS_UP_21DB 0x09
+#define PS8815_DPEQ_LOSS_UP_20DB 0x08
+#define PS8815_DPEQ_LOSS_UP_19DB 0x07
+#define PS8815_DPEQ_LOSS_UP_18DB 0x06
+#define PS8815_DPEQ_LOSS_UP_17DB 0x05
+#define PS8815_DPEQ_LOSS_UP_16DB 0x04
+#define PS8815_DPEQ_LOSS_UP_13DB 0x03
+#define PS8815_DPEQ_LOSS_UP_12DB 0x02
+#define PS8815_DPEQ_LOSS_UP_10DB 0x01
+#define PS8815_DPEQ_LOSS_UP_9DB 0x00
+#define PS8815_REG_DP_EQ_COMP_SHIFT 3
+#define PS8815_AUX_INTERCEPTION_DISABLE BIT(1)
+
/*
* PS8805 GPIO control register. Note the device I2C address of 0x1A is
* independent of the ADDR pin on the chip, and not the same address being used
