REG_TCMPB
writel_relaxed(tcnt, pwm.base + REG_TCMPB(channel));
if (readl(our_chip->base + REG_TCMPB(pwm->hwpwm)) == (u32)-1U)
oldtcmp = readl(our_chip->base + REG_TCMPB(pwm->hwpwm));
writel(tcmp, our_chip->base + REG_TCMPB(pwm->hwpwm));