RK3036_PLLCON1_PWRDOWN
writel(HIWORD_UPDATE(0, RK3036_PLLCON1_PWRDOWN, 0),
writel(HIWORD_UPDATE(RK3036_PLLCON1_PWRDOWN,
RK3036_PLLCON1_PWRDOWN, 0),
return !(pllcon & RK3036_PLLCON1_PWRDOWN);