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authorTakashi Iwai <tiwai@suse.de>2011-08-08 14:30:29 +0200
committerTakashi Iwai <tiwai@suse.de>2011-08-08 14:30:29 +0200
commit0a2d31b62dba9b5b92a38c67c9cc42630513662a (patch)
treef755d74ec85248de645e10c45ed1a2ed467530f6 /include/linux/i2c-omap.h
parent8039290a91c5dc4414093c086987a5d7738fe2fd (diff)
parentdf944f66784e6d4f2f50739263a4947885d8b6ae (diff)
Merge branch 'fix/kconfig' into for-linus
Diffstat (limited to 'include/linux/i2c-omap.h')
-rw-r--r--include/linux/i2c-omap.h27
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);