diff options
| author | Troy Mitchell <troy.mitchell@linux.spacemit.com> | 2026-04-24 11:20:32 +0300 |
|---|---|---|
| committer | Stephen Boyd <sboyd@kernel.org> | 2026-04-29 05:03:08 +0300 |
| commit | 3e75021f615ceee8562e6455c335936b39929ffb (patch) | |
| tree | 611f2ee31fb860c67b6cd47096863980867094dc | |
| parent | 254f49634ee16a731174d2ae34bc50bd5f45e731 (diff) | |
| download | linux-3e75021f615ceee8562e6455c335936b39929ffb.tar.xz | |
clk: spacemit: k3: mark top_dclk as CLK_IS_CRITICAL
top_dclk is the DDR bus clock. If it is gated by clk_disable_unused,
all memory-mapped bus transactions cease to function, causing DMA
engines to hang and general system instability.
Mark it CLK_IS_CRITICAL so the CCF never gates it during the
unused clock sweep.
Fixes: e371a77255b8 ("clk: spacemit: k3: add the clock tree")
Reviewed-by: Brian Masney <bmasney@redhat.com>
Signed-off-by: Troy Mitchell <troy.mitchell@linux.spacemit.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
| -rw-r--r-- | drivers/clk/spacemit/ccu-k3.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/clk/spacemit/ccu-k3.c b/drivers/clk/spacemit/ccu-k3.c index e98afd59f05c..bb8b75bdbdb3 100644 --- a/drivers/clk/spacemit/ccu-k3.c +++ b/drivers/clk/spacemit/ccu-k3.c @@ -846,7 +846,7 @@ static const struct clk_parent_data top_parents[] = { CCU_PARENT_HW(pll6_d3), }; CCU_MUX_DIV_GATE_FC_DEFINE(top_dclk, top_parents, APMU_TOP_DCLK_CTRL, 5, 3, - BIT(8), 2, 3, BIT(1), 0); + BIT(8), 2, 3, BIT(1), CLK_IS_CRITICAL); static const struct clk_parent_data ucie_parents[] = { CCU_PARENT_HW(pll1_d8_307p2), |