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author | Anton Arapov <anton@redhat.com> | 2012-04-16 10:05:28 +0200 |
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committer | Anton Arapov <anton@redhat.com> | 2012-04-16 10:05:28 +0200 |
commit | b4b6116a13633898cf868f2f103c96a90c4c20f8 (patch) | |
tree | 93d1b7e2cfcdf473d8d4ff3ad141fa864f8491f6 /arch/arm/plat-nomadik/include/plat/i2c.h | |
parent | edd4be777c953e5faafc80d091d3084b4343f5d3 (diff) | |
download | kernel-uprobes-b4b6116a13633898cf868f2f103c96a90c4c20f8.tar.gz kernel-uprobes-b4b6116a13633898cf868f2f103c96a90c4c20f8.tar.xz kernel-uprobes-b4b6116a13633898cf868f2f103c96a90c4c20f8.zip |
fedora kernel: d9aad82f3319f3cfd1aebc01234254ef0c37ad84v3.3.2-1
Signed-off-by: Anton Arapov <anton@redhat.com>
Diffstat (limited to 'arch/arm/plat-nomadik/include/plat/i2c.h')
-rw-r--r-- | arch/arm/plat-nomadik/include/plat/i2c.h | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/arch/arm/plat-nomadik/include/plat/i2c.h b/arch/arm/plat-nomadik/include/plat/i2c.h new file mode 100644 index 00000000000..8ba70ffc31e --- /dev/null +++ b/arch/arm/plat-nomadik/include/plat/i2c.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 __PLAT_I2C_H +#define __PLAT_I2C_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 /* __PLAT_I2C_H */ |