summaryrefslogtreecommitdiff
path: root/include/linux/platform_data/i2c-nomadik.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/linux/platform_data/i2c-nomadik.h')
-rw-r--r--include/linux/platform_data/i2c-nomadik.h39
1 files changed, 39 insertions, 0 deletions
diff --git a/include/linux/platform_data/i2c-nomadik.h b/include/linux/platform_data/i2c-nomadik.h
new file mode 100644
index 000000000000..c2303c3e4803
--- /dev/null
+++ b/include/linux/platform_data/i2c-nomadik.h
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2009 ST-Ericsson
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2, as
+ * published by the Free Software Foundation.
+ */
+#ifndef __PDATA_I2C_NOMADIK_H
+#define __PDATA_I2C_NOMADIK_H
+
+enum i2c_freq_mode {
+ I2C_FREQ_MODE_STANDARD, /* up to 100 Kb/s */
+ I2C_FREQ_MODE_FAST, /* up to 400 Kb/s */
+ I2C_FREQ_MODE_HIGH_SPEED, /* up to 3.4 Mb/s */
+ I2C_FREQ_MODE_FAST_PLUS, /* up to 1 Mb/s */
+};
+
+/**
+ * struct nmk_i2c_controller - client specific controller configuration
+ * @clk_freq: clock frequency for the operation mode
+ * @slsu: Slave data setup time in ns.
+ * The needed setup time for three modes of operation
+ * are 250ns, 100ns and 10ns respectively thus leading
+ * to the values of 14, 6, 2 for a 48 MHz i2c clk
+ * @tft: Tx FIFO Threshold in bytes
+ * @rft: Rx FIFO Threshold in bytes
+ * @timeout Slave response timeout(ms)
+ * @sm: speed mode
+ */
+struct nmk_i2c_controller {
+ unsigned long clk_freq;
+ unsigned short slsu;
+ unsigned char tft;
+ unsigned char rft;
+ int timeout;
+ enum i2c_freq_mode sm;
+};
+
+#endif /* __PDATA_I2C_NOMADIK_H */