From: Robert Marko robimarko@gmail.com
stable inclusion from stable-v5.10.150 commit ed8e6011b9532ccaab6c434dcc08894e6b933706 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I6D0XA
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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[ Upstream commit 86e78995c93ee182433f965babfccd48417d4dcf ]
While fixing up the driver I noticed that my IPQ8074 board was hanging after CPUFreq switched the frequency during boot, WDT would eventually reset it.
So mark apcs_alias0_core_clk as critical since its the clock feeding the CPU cluster and must never be disabled.
Fixes: 5e77b4ef1b19 ("clk: qcom: Add ipq6018 apss clock controller") Signed-off-by: Robert Marko robimarko@gmail.com Reviewed-by: Dmitry Baryshkov dmitry.baryshkov@linaro.org Signed-off-by: Bjorn Andersson andersson@kernel.org Link: https://lore.kernel.org/r/20220818220628.339366-3-robimarko@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Jialin Zhang zhangjialin11@huawei.com --- drivers/clk/qcom/apss-ipq6018.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/clk/qcom/apss-ipq6018.c b/drivers/clk/qcom/apss-ipq6018.c index d78ff2f310bf..b5d93657e1ee 100644 --- a/drivers/clk/qcom/apss-ipq6018.c +++ b/drivers/clk/qcom/apss-ipq6018.c @@ -57,7 +57,7 @@ static struct clk_branch apcs_alias0_core_clk = { .parent_hws = (const struct clk_hw *[]){ &apcs_alias0_clk_src.clkr.hw }, .num_parents = 1, - .flags = CLK_SET_RATE_PARENT, + .flags = CLK_SET_RATE_PARENT | CLK_IS_CRITICAL, .ops = &clk_branch2_ops, }, },