On 08.08.2024 18:25, Wolfram Sang wrote: > >> + if (info->fast_mode_plus && t->bus_freq_hz == I2C_MAX_FAST_MODE_PLUS_FREQ) >> + riic_clear_set_bit(riic, 0, ICFER_FMPE, RIIC_ICFER); > > Shouldn't that be something like > > t->bus_freq_hz > I2C_MAX_FAST_MODE_FREQ You're right, it should be. Looking though the HW manual, it specifies this about FPM bit: "Set this bit to 1 when using the transmission rate within a range up to 1 Mbps". Thank you, Claudiu Beznea > > ? On R-Car, we have to enable the FM+ bit as soon as we exceed plain > FastMode bus speeds. >