Messages in this thread | ![/](/images/icornerl.gif) | | Subject | Re: [PATCH] clk: qcom: Leave mmss noc on for 8998 | From | Stephen Boyd <> | Date | Thu, 13 Dec 2018 11:36:20 -0800 |
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Quoting Jeffrey Hugo (2018-12-13 08:59:30) > Similar to other qcom targets, gcc_mmss_noc_cfg_ahb_clk should not be > disabled. Any mmss access depends on this clock, and its been observed > that enabling mmssnoc_axi_rpm_clk with rpmcc results in an implicit > access to mmss and will crash the system if gcc_mmss_noc_cfg_ahb_clk is > disabled. > > Signed-off-by: Jeffrey Hugo <jhugo@codeaurora.org> > --- > drivers/clk/qcom/gcc-msm8998.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/drivers/clk/qcom/gcc-msm8998.c b/drivers/clk/qcom/gcc-msm8998.c > index 4b75a09..b371308 100644 > --- a/drivers/clk/qcom/gcc-msm8998.c > +++ b/drivers/clk/qcom/gcc-msm8998.c > @@ -2014,6 +2014,7 @@ enum { > .hw.init = &(struct clk_init_data){ > .name = "gcc_mmss_noc_cfg_ahb_clk", > .ops = &clk_branch2_ops, > + .flags = CLK_IGNORE_UNUSED,
It should be marked as CLK_IS_CRITICAL and a comment should be added to the code indicating why it's critical.
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