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| /openbmc/linux/drivers/i2c/busses/ |
| H A D | i2c-piix4.c | 0e89b2fe Mon Feb 26 14:46:52 CST 2018 Guenter Roeck <linux@roeck-us.net> i2c: piix4: Use usleep_range()
The piix4 i2c driver is extremely slow. Replacing msleep()
with usleep_range() increases its speed substantially.
Use sleep ranges similar to those used in the i2c-801 driver
to keep things simple.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
0e89b2fe Mon Feb 26 14:46:52 CST 2018 Guenter Roeck <linux@roeck-us.net> i2c: piix4: Use usleep_range()
The piix4 i2c driver is extremely slow. Replacing msleep()
with usleep_range() increases its speed substantially.
Use sleep ranges similar to those used in the i2c-801 driver
to keep things simple.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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