redonkable/alistair23-linux
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clk: qoriq: add cpufreq platform device

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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>
This commit is contained in:
Mian Yousaf Kaukab 2020-04-21 10:30:00 +02:00 committed by Viresh Kumar
parent 157f527639
commit cf1e0449ac
1 changed files with 27 additions and 3 deletions
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30
drivers/clk/clk-qoriq.c
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@ -95,6 +95,7 @@ struct clockgen {
};
static struct clockgen clockgen;
static bool add_cpufreq_dev __initdata;
static void cg_out(struct clockgen *cg, u32 val, u32 __iomem *reg)
{
@ -1019,7 +1020,7 @@ static void __init create_muxes(struct clockgen *cg)
}
}
static void __init clockgen_init(struct device_node *np);
static void __init _clockgen_init(struct device_node *np, bool legacy);
/*
* Legacy nodes may get probed before the parent clockgen node.
@ -1030,7 +1031,7 @@ static void __init clockgen_init(struct device_node *np);
static void __init legacy_init_clockgen(struct device_node *np)
{
if (!clockgen.node)
clockgen_init(of_get_parent(np));
_clockgen_init(of_get_parent(np), true);
}
/* Legacy node */
@ -1447,7 +1448,7 @@ static bool __init has_erratum_a4510(void)
}
#endif
static void __init clockgen_init(struct device_node *np)
static void __init _clockgen_init(struct device_node *np, bool legacy)
{
int i, ret;
bool is_old_ls1021a = false;
@ -1516,12 +1517,35 @@ static void __init clockgen_init(struct device_node *np)
__func__, np, ret);
}
/* Don't create cpufreq device for legacy clockgen blocks */
add_cpufreq_dev = !legacy;
return;
err:
iounmap(clockgen.regs);
clockgen.regs = NULL;
}
static void __init clockgen_init(struct device_node *np)
{
_clockgen_init(np, false);
}
static int __init clockgen_cpufreq_init(void)
{
struct platform_device *pdev;
if (add_cpufreq_dev) {
pdev = platform_device_register_simple("qoriq-cpufreq", -1,
NULL, 0);
if (IS_ERR(pdev))
pr_err("Couldn't register qoriq-cpufreq err=%ld\n",
PTR_ERR(pdev));
}
return 0;
}
device_initcall(clockgen_cpufreq_init);
CLK_OF_DECLARE(qoriq_clockgen_1, "fsl,qoriq-clockgen-1.0", clockgen_init);
CLK_OF_DECLARE(qoriq_clockgen_2, "fsl,qoriq-clockgen-2.0", clockgen_init);
CLK_OF_DECLARE(qoriq_clockgen_b4420, "fsl,b4420-clockgen", clockgen_init);