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/Linux-v5.10/drivers/i2c/busses/
Di2c-riic.c286 int total_ticks, cks, brl, brh; in riic_init_hw() local
337 brh = total_ticks - brl; in riic_init_hw()
342 brh -= 4; in riic_init_hw()
345 brh -= 3; in riic_init_hw()
353 brh -= t->scl_rise_ns / (1000000000 / rate); in riic_init_hw()
358 if (brh < 1) in riic_init_hw()
359 brh = 1; in riic_init_hw()
362 rate / total_ticks, ((brl + 3) * 100) / (brl + brh + 6), in riic_init_hw()
364 t->scl_rise_ns / (1000000000 / rate), cks, brl, brh); in riic_init_hw()
371 writeb(brh | ICBR_RESERVED, riic->base + RIIC_ICBRH); in riic_init_hw()