CLK_SDONLY
brcmf_sdio_clkctl(bus, CLK_SDONLY, false);
bus->clkstate = CLK_SDONLY;
bus->clkstate = (on ? CLK_AVAIL : CLK_SDONLY);
bus->clkstate = CLK_SDONLY;
bus->clkstate = CLK_SDONLY;
case CLK_SDONLY: