SBSDIO_FUNC1_SLEEPCSR
val = brcmf_sdiod_readb(bus->sdiodev, SBSDIO_FUNC1_SLEEPCSR, &err);
brcmf_sdiod_writeb(bus->sdiodev, SBSDIO_FUNC1_SLEEPCSR,
brcmf_sdiod_writeb(bus->sdiodev, SBSDIO_FUNC1_SLEEPCSR, wr_val, &err);
rd_val = brcmf_sdiod_readb(bus->sdiodev, SBSDIO_FUNC1_SLEEPCSR,
brcmf_sdiod_writeb(bus->sdiodev, SBSDIO_FUNC1_SLEEPCSR, wr_val,