msm_fb: display: add dcs read parser

Parser byte stream responsed back from dcs client base on
the dcs command type.

CRs-fixed: 306936
Change-Id: I0e3776c7ca86f7c4a0f0d090da108599753b9997
Signed-off-by: kuogee hsieh <khsieh@codeaurora.org>
diff --git a/drivers/video/msm/mipi_dsi.h b/drivers/video/msm/mipi_dsi.h
index ddf72e0..9907109 100644
--- a/drivers/video/msm/mipi_dsi.h
+++ b/drivers/video/msm/mipi_dsi.h
@@ -222,6 +222,17 @@
 #define DTYPE_PERIPHERAL_OFF	0x22
 #define DTYPE_PERIPHERAL_ON	0x32
 
+/*
+ * dcs response
+ */
+#define DTYPE_ACK_ERR_RESP      0x02
+#define DTYPE_EOT_RESP          0x08    /* end of tx */
+#define DTYPE_GEN_READ1_RESP    0x11    /* 1 parameter, short */
+#define DTYPE_GEN_READ2_RESP    0x12    /* 2 parameter, short */
+#define DTYPE_GEN_LREAD_RESP    0x1a
+#define DTYPE_DCS_LREAD_RESP    0x1c
+#define DTYPE_DCS_READ1_RESP    0x21    /* 1 parameter, short */
+#define DTYPE_DCS_READ2_RESP    0x22    /* 2 parameter, short */
 
 struct dsi_cmd_desc {
 	int dtype;