Sergey Suloev sergey-suloev
aventuri
/ gist:72bb355da22491beba03cc4d36e12e46
Created
August 30, 2017 12:45
A20 quick patch for I2C bus recovery when SDA stuck (9 clock ticks technique)
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| diff --git a/drivers/i2c/busses/i2c-mv64xxx.c b/drivers/i2c/busses/i2c-mv64xxx.c | |
| index 30059c1..2eb357e 100644 | |
| --- a/drivers/i2c/busses/i2c-mv64xxx.c | |
| +++ b/drivers/i2c/busses/i2c-mv64xxx.c | |
| @@ -80,6 +80,15 @@ | |
| /* Bridge Status values */ | |
| #define MV64XXX_I2C_BRIDGE_STATUS_ERROR BIT(0) | |
| +/* sun4i TWI LCR register */ | |
| +#define SUN4I_I2C_LCR_REG 0x20 |