rz_dmac_ch_readl
crla = rz_dmac_ch_readl(channel, CRLA, 1);
crtb = rz_dmac_ch_readl(channel, CRTB, 1);
if (crla == rz_dmac_ch_readl(channel, CRLA, 1))
ret = read_poll_timeout_atomic(rz_dmac_ch_readl, val,
ret = read_poll_timeout_atomic(rz_dmac_ch_readl, val,
chstat = rz_dmac_ch_readl(channel, CHSTAT, 1);
channel->pm_state.nxla = rz_dmac_ch_readl(channel, NXLA, 1);
u32 val = rz_dmac_ch_readl(channel, CHSTAT, 1);
u32 val = rz_dmac_ch_readl(channel, CHSTAT, 1);
ret = read_poll_timeout(rz_dmac_ch_readl, chstat, !(chstat & CHSTAT_EN),