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| author | Alessandro Rubini <rubini@gnudd.com> | 2012-06-11 22:56:26 +0200 |
|---|---|---|
| committer | Wolfram Sang <w.sang@pengutronix.de> | 2012-07-09 11:40:40 +0200 |
| commit | af97bace2cca58ee7c94bf4d31e820f29688d7a5 (patch) | |
| tree | f9b97199d8112f6d39813c39bd3275b7a5355c5c /include | |
| parent | i2c: imx: convert to use managed functions (diff) | |
| download | linux-af97bace2cca58ee7c94bf4d31e820f29688d7a5.tar.xz linux-af97bace2cca58ee7c94bf4d31e820f29688d7a5.zip | |
i2c-nomadik: move header to <linux/platform_data/i2c-nomadik.h>
The header and driver are only used by arm/mach-u8500 (and potentially
arm/mach-nomadik), but the STA2X11 I/O Hub exports on PCIe a number of
devices, including i2c-nomadik. This patch allows compilation of the
driver under x86.
Signed-off-by: Alessandro Rubini <rubini@gnudd.com>
Acked-by: Giancarlo Asnaghi <giancarlo.asnaghi@st.com>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/platform_data/i2c-nomadik.h | 39 |
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 */ |