clk/samsung: add support for multiple clock providers
Samsung CCF helper functions do not provide support to
register multiple Clock Providers for a given SoC. Due to
this limitation, SoC platforms are not able to use these
helpers for registering multiple clock providers and are
forced to bypass this layer.
This layer is modified accordingly to enable the support
for multiple clock providers.
Clock file for exynos4, exynos5250, exynos5420, exynos5440,
S3c64xx, S3c24xx are also modified as per changed helper functions.
Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com>
[t.figa: Modified s3c2410 clock driver as well]
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
diff --git a/drivers/clk/samsung/clk-s3c64xx.c b/drivers/clk/samsung/clk-s3c64xx.c
index 8bda658..efa16ee 100644
--- a/drivers/clk/samsung/clk-s3c64xx.c
+++ b/drivers/clk/samsung/clk-s3c64xx.c
@@ -442,12 +442,14 @@
ALIAS(MEM0_SROM, NULL, "srom"),
};
-static void __init s3c64xx_clk_register_fixed_ext(unsigned long fin_pll_f,
- unsigned long xusbxti_f)
+static void __init s3c64xx_clk_register_fixed_ext(
+ struct samsung_clk_provider *ctx,
+ unsigned long fin_pll_f,
+ unsigned long xusbxti_f)
{
s3c64xx_fixed_rate_ext_clks[0].fixed_rate = fin_pll_f;
s3c64xx_fixed_rate_ext_clks[1].fixed_rate = xusbxti_f;
- samsung_clk_register_fixed_rate(s3c64xx_fixed_rate_ext_clks,
+ samsung_clk_register_fixed_rate(ctx, s3c64xx_fixed_rate_ext_clks,
ARRAY_SIZE(s3c64xx_fixed_rate_ext_clks));
}
@@ -456,6 +458,8 @@
unsigned long xusbxti_f, bool s3c6400,
void __iomem *base)
{
+ struct samsung_clk_provider *ctx;
+
reg_base = base;
is_s3c6400 = s3c6400;
@@ -465,48 +469,50 @@
panic("%s: failed to map registers\n", __func__);
}
- samsung_clk_init(np, reg_base, NR_CLKS);
+ ctx = samsung_clk_init(np, reg_base, NR_CLKS);
+ if (!ctx)
+ panic("%s: unable to allocate context.\n", __func__);
/* Register external clocks. */
if (!np)
- s3c64xx_clk_register_fixed_ext(xtal_f, xusbxti_f);
+ s3c64xx_clk_register_fixed_ext(ctx, xtal_f, xusbxti_f);
/* Register PLLs. */
- samsung_clk_register_pll(s3c64xx_pll_clks,
+ samsung_clk_register_pll(ctx, s3c64xx_pll_clks,
ARRAY_SIZE(s3c64xx_pll_clks), reg_base);
/* Register common internal clocks. */
- samsung_clk_register_fixed_rate(s3c64xx_fixed_rate_clks,
+ samsung_clk_register_fixed_rate(ctx, s3c64xx_fixed_rate_clks,
ARRAY_SIZE(s3c64xx_fixed_rate_clks));
- samsung_clk_register_mux(s3c64xx_mux_clks,
+ samsung_clk_register_mux(ctx, s3c64xx_mux_clks,
ARRAY_SIZE(s3c64xx_mux_clks));
- samsung_clk_register_div(s3c64xx_div_clks,
+ samsung_clk_register_div(ctx, s3c64xx_div_clks,
ARRAY_SIZE(s3c64xx_div_clks));
- samsung_clk_register_gate(s3c64xx_gate_clks,
+ samsung_clk_register_gate(ctx, s3c64xx_gate_clks,
ARRAY_SIZE(s3c64xx_gate_clks));
/* Register SoC-specific clocks. */
if (is_s3c6400) {
- samsung_clk_register_mux(s3c6400_mux_clks,
+ samsung_clk_register_mux(ctx, s3c6400_mux_clks,
ARRAY_SIZE(s3c6400_mux_clks));
- samsung_clk_register_div(s3c6400_div_clks,
+ samsung_clk_register_div(ctx, s3c6400_div_clks,
ARRAY_SIZE(s3c6400_div_clks));
- samsung_clk_register_gate(s3c6400_gate_clks,
+ samsung_clk_register_gate(ctx, s3c6400_gate_clks,
ARRAY_SIZE(s3c6400_gate_clks));
- samsung_clk_register_alias(s3c6400_clock_aliases,
+ samsung_clk_register_alias(ctx, s3c6400_clock_aliases,
ARRAY_SIZE(s3c6400_clock_aliases));
} else {
- samsung_clk_register_mux(s3c6410_mux_clks,
+ samsung_clk_register_mux(ctx, s3c6410_mux_clks,
ARRAY_SIZE(s3c6410_mux_clks));
- samsung_clk_register_div(s3c6410_div_clks,
+ samsung_clk_register_div(ctx, s3c6410_div_clks,
ARRAY_SIZE(s3c6410_div_clks));
- samsung_clk_register_gate(s3c6410_gate_clks,
+ samsung_clk_register_gate(ctx, s3c6410_gate_clks,
ARRAY_SIZE(s3c6410_gate_clks));
- samsung_clk_register_alias(s3c6410_clock_aliases,
+ samsung_clk_register_alias(ctx, s3c6410_clock_aliases,
ARRAY_SIZE(s3c6410_clock_aliases));
}
- samsung_clk_register_alias(s3c64xx_clock_aliases,
+ samsung_clk_register_alias(ctx, s3c64xx_clock_aliases,
ARRAY_SIZE(s3c64xx_clock_aliases));
s3c64xx_clk_sleep_init();