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| author | Xuyang Dong <dongxuyang@eswincomputing.com> | 2026-06-05 17:21:18 +0800 |
|---|---|---|
| committer | Brian Masney <bmasney@redhat.com> | 2026-06-29 13:17:36 -0400 |
| commit | 22109b7329f9b3bf2fee73087c73ce46e9bf3751 (patch) | |
| tree | 2c90fa2613dab92b21bbd0861a5a39d499f80f33 | |
| parent | 4adf593c6fc5aed4639add011f71a074a1bd3966 (diff) | |
| download | linux-22109b7329f9b3bf2fee73087c73ce46e9bf3751.tar.gz linux-22109b7329f9b3bf2fee73087c73ce46e9bf3751.zip | |
clk: eswin: Add CLK_IGNORE_UNUSED to NoC clock
The gate_noc_nsp_clk provides the essential clock source for NPU,
DSP, and PCIe subsystems. During kernel init, the clock framework
attempts to disable unused clocks when clk_ignore_unused kernel
parameter is not set.
However, gate_noc_nsp_clk is required to remain enabled for these
critical subsystems to function properly, causing PCIe boot failures
when auto-disabled.
Add CLK_IGNORE_UNUSED flag to gate_noc_nsp_clk to ensure it stays
enabled even when clk_ignore_unused is not specified in kernel
command line.
Fixes: cd44f127c1d4 ("clk: eswin: Add eic7700 clock driver")
Signed-off-by: Xuyang Dong <dongxuyang@eswincomputing.com>
Reviewed-by: Brian Masney <bmasney@redhat.com>
Signed-off-by: Brian Masney <bmasney@redhat.com>
| -rw-r--r-- | drivers/clk/eswin/clk-eic7700.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/clk/eswin/clk-eic7700.c b/drivers/clk/eswin/clk-eic7700.c index be81d74192da..43a47fe16ab1 100644 --- a/drivers/clk/eswin/clk-eic7700.c +++ b/drivers/clk/eswin/clk-eic7700.c @@ -791,7 +791,8 @@ static struct eswin_clk_info eic7700_clks[] = { EIC7700_CLK_MUX_CPU_ROOT_3MUX1_GFREE, CLK_SET_RATE_PARENT, EIC7700_REG_OFFSET_U84, 27, 0), ESWIN_GATE_TYPE(EIC7700_CLK_GATE_NOC_NSP_CLK, "gate_noc_nsp_clk", - EIC7700_CLK_DIV_NOC_NSP_DYNM, CLK_SET_RATE_PARENT, + EIC7700_CLK_DIV_NOC_NSP_DYNM, + CLK_SET_RATE_PARENT | CLK_IGNORE_UNUSED, EIC7700_REG_OFFSET_NOC, 31, 0), ESWIN_GATE_TYPE(EIC7700_CLK_GATE_BOOTSPI, "gate_clk_bootspi", EIC7700_CLK_MUX_BOOTSPI_CLK_2MUX1_GFREE, |