On 2021/4/7 3:54, Wolfram Sang wrote: > >> diff --git a/include/linux/i2c.h b/include/linux/i2c.h >> index 10bd0b0..7268180 100644 >> --- a/include/linux/i2c.h >> +++ b/include/linux/i2c.h >> @@ -47,6 +47,26 @@ typedef int (*i2c_slave_cb_t)(struct i2c_client *client, >> #define I2C_MAX_HIGH_SPEED_MODE_FREQ 3400000 >> #define I2C_MAX_ULTRA_FAST_MODE_FREQ 5000000 >> >> +static inline const char *i2c_freq_mode_string(u32 bus_freq_hz) >> +{ >> + switch (bus_freq_hz) { >> + case I2C_MAX_STANDARD_MODE_FREQ: >> + return "Standard Mode (100 kHz)"; >> + case I2C_MAX_FAST_MODE_FREQ: >> + return "Fast Mode (400 kHz)"; >> + case I2C_MAX_FAST_MODE_PLUS_FREQ: >> + return "Fast Mode Plus (1.0 MHz)"; >> + case I2C_MAX_TURBO_MODE_FREQ: >> + return "Turbo Mode (1.4 MHz)"; >> + case I2C_MAX_HIGH_SPEED_MODE_FREQ: >> + return "High Speed Mode (3.4 MHz)"; >> + case I2C_MAX_ULTRA_FAST_MODE_FREQ: >> + return "Ultra Fast Mode (5.0 MHz)"; >> + default: >> + return "Unknown Mode"; >> + } >> +} > > Any reason ehy this is an inline function? My gut feeling says it would > be better added to the core? > it's not a complicated function so i didn't think it'll make much difference, so i just put it in the header along with the coresponding macro definitions. do you want me to move it to the core? Thanks