1 files changed, 27 insertions, 0 deletions

diff --git a/include/linux/i2c-omap.h b/include/linux/i2c-omap.h
index 7472449cbb74..0aa0cbd676f7 100644
--- a/include/linux/i2c-omap.h
+++ b/include/linux/i2c-omap.h
@@ -3,6 +3,33 @@
 
 #include <linux/platform_device.h>
 
+/*
+ * Version 2 of the I2C peripheral unit has a different register
+ * layout and extra registers.  The ID register in the V2 peripheral
+ * unit on the OMAP4430 reports the same ID as the V1 peripheral
+ * unit on the OMAP3530, so we must inform the driver which IP
+ * version we know it is running on from platform / cpu-specific
+ * code using these constants in the hwmod class definition.
+ */
+
+#define OMAP_I2C_IP_VERSION_1 1
+#define OMAP_I2C_IP_VERSION_2 2
+
+/* struct omap_i2c_bus_platform_data .flags meanings */
+
+#define OMAP_I2C_FLAG_NO_FIFO                   BIT(0)
+#define OMAP_I2C_FLAG_SIMPLE_CLOCK              BIT(1)
+#define OMAP_I2C_FLAG_16BIT_DATA_REG            BIT(2)
+#define OMAP_I2C_FLAG_RESET_REGS_POSTIDLE       BIT(3)
+#define OMAP_I2C_FLAG_APPLY_ERRATA_I207 BIT(4)
+#define OMAP_I2C_FLAG_ALWAYS_ARMXOR_CLK BIT(5)
+#define OMAP_I2C_FLAG_FORCE_19200_INT_CLK       BIT(6)
+/* how the CPU address bus must be translated for I2C unit access */
+#define OMAP_I2C_FLAG_BUS_SHIFT_NONE 0
+#define OMAP_I2C_FLAG_BUS_SHIFT_1               BIT(7)
+#define OMAP_I2C_FLAG_BUS_SHIFT_2               BIT(8)
+#define OMAP_I2C_FLAG_BUS_SHIFT__SHIFT 7
+
 struct omap_i2c_bus_platform_data {
         u32             clkrate;
         void            (*set_mpu_wkup_lat)(struct device *dev, long set);