diff --git a/parade_lspcon.c b/parade_lspcon.c
index f425c127e..e8938c9ab 100644
--- a/parade_lspcon.c
+++ b/parade_lspcon.c
@@ -35,10 +35,11 @@
 #define ROMADDR_BYTE1		0x8e
 #define ROMADDR_BYTE2		0x8f
 #define SWSPI_WDATA		0x90
+/* SWSPI_WDATA_* appear to be numerically the same as JEDEC commands. */
  #define SWSPI_WDATA_CLEAR_STATUS		0x00
- #define SWSPI_WDATA_WRITE_REGISTER		0x01
- #define SWSPI_WDATA_READ_REGISTER		0x05
- #define SWSPI_WDATA_ENABLE_REGISTER		0x06
+ #define SWSPI_WDATA_WRITE_REGISTER		0x01 /* JEDEC_WRSR */
+ #define SWSPI_WDATA_READ_REGISTER		0x05 /* JEDEC_RDSR */
+ #define SWSPI_WDATA_ENABLE_REGISTER		0x06 /* JEDEC_WREN */
  #define SWSPI_WDATA_PROTECT_BP			0x8c
 #define SWSPI_RDATA		0x91
 #define SWSPI_LEN		0x92