xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

i2c: i2c-sh_mobile: support I2C hardware block with a faster operating clock

Browse Source 
On newer SH-/R-Mobile SoCs, a clock supply to the I2C hardware block,
which is used to generate the SCL clock output, is getting faster than
before, while on the other hand, the SCL clock control registers, ICCH
and ICCL, stay unchanged in 9-bit-wide (8+1).

On such silicons, the internal SCL clock counter gets incremented every
2 clocks of the operating clock.

This patch makes it configurable through platform data.

Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi.px@renesas.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
This commit is contained in:
Shinya Kuribayashi
2012-10-24 19:58:10 +09:00
committed by Wolfram Sang
parent 23a612916a
commit ebd5ac165f
2 changed files with 6 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
include/linux/i2c/i2c-sh_mobile.h
View File

@@ -5,6 +5,7 @@
struct i2c_sh_mobile_platform_data {
unsigned long bus_speed;
unsigned int clks_per_count;
};
#endif /* __I2C_SH_MOBILE_H__ */