clk: qoriq: add cpufreq platform device
Add a platform device for qoirq-cpufreq driver for the compatible clockgen blocks. Reviewed-by: Yuantian Tang <andy.tang@nxp.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Mian Yousaf Kaukab <ykaukab@suse.de> Acked-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
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@ -95,6 +95,7 @@ struct clockgen {
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};
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static struct clockgen clockgen;
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static bool add_cpufreq_dev __initdata;
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static void cg_out(struct clockgen *cg, u32 val, u32 __iomem *reg)
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{
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@ -1019,7 +1020,7 @@ static void __init create_muxes(struct clockgen *cg)
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}
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}
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static void __init clockgen_init(struct device_node *np);
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static void __init _clockgen_init(struct device_node *np, bool legacy);
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/*
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* Legacy nodes may get probed before the parent clockgen node.
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@ -1030,7 +1031,7 @@ static void __init clockgen_init(struct device_node *np);
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static void __init legacy_init_clockgen(struct device_node *np)
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{
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if (!clockgen.node)
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clockgen_init(of_get_parent(np));
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_clockgen_init(of_get_parent(np), true);
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}
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/* Legacy node */
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@ -1447,7 +1448,7 @@ static bool __init has_erratum_a4510(void)
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}
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#endif
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static void __init clockgen_init(struct device_node *np)
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static void __init _clockgen_init(struct device_node *np, bool legacy)
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{
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int i, ret;
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bool is_old_ls1021a = false;
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@ -1516,12 +1517,35 @@ static void __init clockgen_init(struct device_node *np)
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__func__, np, ret);
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}
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/* Don't create cpufreq device for legacy clockgen blocks */
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add_cpufreq_dev = !legacy;
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return;
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err:
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iounmap(clockgen.regs);
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clockgen.regs = NULL;
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}
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static void __init clockgen_init(struct device_node *np)
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{
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_clockgen_init(np, false);
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}
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static int __init clockgen_cpufreq_init(void)
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{
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struct platform_device *pdev;
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if (add_cpufreq_dev) {
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pdev = platform_device_register_simple("qoriq-cpufreq", -1,
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NULL, 0);
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if (IS_ERR(pdev))
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pr_err("Couldn't register qoriq-cpufreq err=%ld\n",
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PTR_ERR(pdev));
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}
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return 0;
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}
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device_initcall(clockgen_cpufreq_init);
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CLK_OF_DECLARE(qoriq_clockgen_1, "fsl,qoriq-clockgen-1.0", clockgen_init);
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CLK_OF_DECLARE(qoriq_clockgen_2, "fsl,qoriq-clockgen-2.0", clockgen_init);
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CLK_OF_DECLARE(qoriq_clockgen_b4420, "fsl,b4420-clockgen", clockgen_init);
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