[PATCH 1/2] clk: spacemit: k3: set hdma clock as critical

[Yixun Lan]

HDMA clock is responsible for the internal TCM access path of X100 RISC-V
core, so set the clock flag as critical to prevent it from being shut off,
otherwise the Linux system will hang.

Fixes: e371a77255b8 ("clk: spacemit: k3: add the clock tree")
Reported-by: Han Gao <gaohan@xxxxxxxxxxx>
Signed-off-by: Yixun Lan <dlan@xxxxxxxxxx>
---
 drivers/clk/spacemit/ccu-k3.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clk/spacemit/ccu-k3.c b/drivers/clk/spacemit/ccu-k3.c
index cb0c4277f72a..f0160b4c0e1b 100644
--- a/drivers/clk/spacemit/ccu-k3.c
+++ b/drivers/clk/spacemit/ccu-k3.c
@@ -1026,7 +1026,7 @@ CCU_MUX_DIV_GATE_DEFINE(isim_vclk_out3, isim_vclk_parents, APMU_SNR_ISIM_VCLK_CT
 /* APMU clocks end */
 
 /* DCIU clocks start */
-CCU_GATE_DEFINE(hdma_clk, CCU_PARENT_HW(axi_clk), DCIU_DMASYS_CLK_EN, BIT(0), 0);
+CCU_GATE_DEFINE(hdma_clk, CCU_PARENT_HW(axi_clk), DCIU_DMASYS_CLK_EN, BIT(0), CLK_IS_CRITICAL);
 CCU_GATE_DEFINE(dma350_clk, CCU_PARENT_HW(axi_clk), DCIU_DMASYS_SDMA_CLK_EN, BIT(0), 0);
 CCU_GATE_DEFINE(c2_tcm_pipe_clk, CCU_PARENT_HW(axi_clk), DCIU_C2_TCM_PIPE_CLK, BIT(0), 0);
 CCU_GATE_DEFINE(c3_tcm_pipe_clk, CCU_PARENT_HW(axi_clk), DCIU_C3_TCM_PIPE_CLK, BIT(0), 0);

-- 
2.54.0