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clk: samsung: Modify _get_rate() helper to use __clk_lookup()

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There is no need to use clkdev inside the clock driver to retrieve the
clocks for internal use. Instead __clk_lookup() helper can be used to
look up clocks by their platform name.

This patch modifies the behavior of _get_rate() helper to look up clocks
by platform name and adjusts all users of it to pass platform names
instead of clkdev aliases.

Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
This commit is contained in:
Tomasz Figa 2013-08-26 19:09:00 +02:00 committed by Mike Turquette
parent e6c3e730a7
commit 3a64789568
3 changed files with 7 additions and 9 deletions
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4
drivers/clk/samsung/clk-exynos4.c
View File

@ -1092,9 +1092,9 @@ static void __init exynos4_clk_init(struct device_node *np,
pr_info("%s clocks: sclk_apll = %ld, sclk_mpll = %ld\n"
"\tsclk_epll = %ld, sclk_vpll = %ld, arm_clk = %ld\n",
exynos4_soc == EXYNOS4210 ? "Exynos4210" : "Exynos4x12",
_get_rate("sclk_apll"), _get_rate("mout_mpll"),
_get_rate("sclk_apll"), _get_rate("sclk_mpll"),
_get_rate("sclk_epll"), _get_rate("sclk_vpll"),
_get_rate("armclk"));
_get_rate("arm_clk"));
}

2
drivers/clk/samsung/clk-exynos5440.c
View File

@ -132,7 +132,7 @@ static void __init exynos5440_clk_init(struct device_node *np)
samsung_clk_register_gate(exynos5440_gate_clks,
ARRAY_SIZE(exynos5440_gate_clks));
pr_info("Exynos5440: arm_clk = %ldHz\n", _get_rate("armclk"));
pr_info("Exynos5440: arm_clk = %ldHz\n", _get_rate("arm_clk"));
pr_info("exynos5440 clock initialization complete\n");
}
CLK_OF_DECLARE(exynos5440_clk, "samsung,exynos5440-clock", exynos5440_clk_init);

10
drivers/clk/samsung/clk.c
View File

@ -307,14 +307,12 @@ void __init samsung_clk_of_register_fixed_ext(
unsigned long _get_rate(const char *clk_name)
{
struct clk *clk;
unsigned long rate;
clk = clk_get(NULL, clk_name);
if (IS_ERR(clk)) {
clk = __clk_lookup(clk_name);
if (!clk) {
pr_err("%s: could not find clock %s\n", __func__, clk_name);
return 0;
}
rate = clk_get_rate(clk);
clk_put(clk);
return rate;
return clk_get_rate(clk);
}