michaelh/zephyr
1
0
Fork 0
Code Releases Activity

i2c: Cleanup dts clock-frequency property usage

Browse source 
Clarify that the clock-frequency is the bitrate at boot and introduce
defines that .dts files can use to set the clock-frequency.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
This commit is contained in:
Kumar Gala 2017-08-10 11:22:24 -05:00 • committed by Kumar Gala
commit 670fc3230d
2 changed files with 16 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

15
include/dt-bindings/i2c/i2c.h Normal file
View file

@ -0,0 +1,15 @@
/*
* Copyright (c) 2017 Linaro Limited
*
* SPDX-License-Identifier: Apache-2.0
*/
#ifndef __DT_BINDINGS_I2C_I2C_H
#define __DT_BINDINGS_I2C_I2C_H
#define I2C_BITRATE_STANDARD 100000 /* 100 Kbit/s */
#define I2C_BITRATE_FAST 400000 /* 400 Kbit/s */
#define I2C_BITRATE_FAST_PLUS 1000000 /* 1 Mbit/s */
#define I2C_BITRATE_HIGH 3400000 /* 3.4 Mbit/s */
#define I2C_BITRATE_ULTRA 5000000 /* 5 Mbit/s */
#endif /* __DT_BINDINGS_I2C_I2C_H */