diff options
Diffstat (limited to 'drivers/clk/rockchip/clk-rk3288.c')
| -rw-r--r-- | drivers/clk/rockchip/clk-rk3288.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/clk/rockchip/clk-rk3288.c b/drivers/clk/rockchip/clk-rk3288.c index 39af05a589b3..32b130c53ff9 100644 --- a/drivers/clk/rockchip/clk-rk3288.c +++ b/drivers/clk/rockchip/clk-rk3288.c @@ -826,6 +826,9 @@ static const int rk3288_saved_cru_reg_ids[] = { RK3288_CLKSEL_CON(10), RK3288_CLKSEL_CON(33), RK3288_CLKSEL_CON(37), + + /* We turn aclk_dmac1 on for suspend; this will restore it */ + RK3288_CLKGATE_CON(10), }; static u32 rk3288_saved_cru_regs[ARRAY_SIZE(rk3288_saved_cru_reg_ids)]; @@ -842,6 +845,14 @@ static int rk3288_clk_suspend(void) } /* + * Going into deep sleep (specifically setting PMU_CLR_DMA in + * RK3288_PMU_PWRMODE_CON1) appears to fail unless + * "aclk_dmac1" is on. + */ + writel_relaxed(1 << (12 + 16), + rk3288_cru_base + RK3288_CLKGATE_CON(10)); + + /* * Switch PLLs other than DPLL (for SDRAM) to slow mode to * avoid crashes on resume. The Mask ROM on the system will * put APLL, CPLL, and GPLL into slow mode at resume time |