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clk: qcom: apcs-msm8916: Flag a53mux instead of a53pll as critical 

The clock source for MSM8916 cpu cores is like below.

                        |\
         a53pll --------| \ a53mux     +------+
                        | |------------| cpus |
     gpll0_vote --------| /            +------+
                        |/

So a53mux rather than a53pll is actually the parent clock of cpu cores.
It makes more sense to flag a53mux as critical instead, so that when
either a53pll or gpll0_vote is used by cpu cores, the clock will be kept
enabled while the other can be disabled.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Link: https://lore.kernel.org/r/20210704024032.11559-2-shawn.guo@linaro.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
This commit is contained in:
Shawn Guo 2021-07-04 10:40:29 +08:00 committed by Stephen Boyd
parent 945cb3a105
commit 0dfe9bf91f
2 changed files with 1 additions and 2 deletions
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1
drivers/clk/qcom/a53-pll.c
View File

@ -70,7 +70,6 @@ static int qcom_a53pll_probe(struct platform_device *pdev)
init.parent_names = (const char *[]){ "xo" };
init.num_parents = 1;
init.ops = &clk_pll_sr2_ops;
init.flags = CLK_IS_CRITICAL;
pll->clkr.hw.init = &init;
ret = devm_clk_register_regmap(dev, &pll->clkr);

2
drivers/clk/qcom/apcs-msm8916.c
View File

@ -65,7 +65,7 @@ static int qcom_apcs_msm8916_clk_probe(struct platform_device *pdev)
init.parent_data = pdata;
init.num_parents = ARRAY_SIZE(pdata);
init.ops = &clk_regmap_mux_div_ops;
init.flags = CLK_SET_RATE_PARENT;
init.flags = CLK_IS_CRITICAL | CLK_SET_RATE_PARENT;
a53cc->clkr.hw.init = &init;
a53cc->clkr.regmap = regmap;