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/Linux-v6.1/drivers/i2c/busses/
Di2c-riic.c288 int total_ticks, cks, brl, brh; in riic_init_hw() local
339 brh = total_ticks - brl; in riic_init_hw()
344 brh -= 4; in riic_init_hw()
347 brh -= 3; in riic_init_hw()
355 brh -= t->scl_rise_ns / (1000000000 / rate); in riic_init_hw()
360 if (brh < 1) in riic_init_hw()
361 brh = 1; in riic_init_hw()
364 rate / total_ticks, ((brl + 3) * 100) / (brl + brh + 6), in riic_init_hw()
366 t->scl_rise_ns / (1000000000 / rate), cks, brl, brh); in riic_init_hw()
373 writeb(brh | ICBR_RESERVED, riic->base + RIIC_ICBRH); in riic_init_hw()