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clk: ux500: Add Device Tree support for the RTC clock 

This patch enables the RTC fixed frequency clock to be specified from
Device Tree via phandles to the "rtc32k-clock" node.

Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Lee Jones 2013-09-17 10:34:24 +01:00 committed by Linus Walleij
parent 89da2dfafc
commit d625a73067
1 changed files with 5 additions and 2 deletions
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7
drivers/clk/ux500/u8500_of_clk.c
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@ -60,7 +60,7 @@ void u8500_of_clk_init(u32 clkrst1_base, u32 clkrst2_base, u32 clkrst3_base,
struct device_node *np = NULL;
struct device_node *child = NULL;
const char *sgaclk_parent = NULL;
struct clk *clk;
struct clk *clk, *rtc_clk;
if (of_have_populated_dt())
np = of_find_matching_node(NULL, u8500_clk_of_match);
@ -84,7 +84,7 @@ void u8500_of_clk_init(u32 clkrst1_base, u32 clkrst2_base, u32 clkrst3_base,
/* FIXME: Add sys, ulp and int clocks here. */
clk = clk_register_fixed_rate(NULL, "rtc32k", "NULL",
rtc_clk = clk_register_fixed_rate(NULL, "rtc32k", "NULL",
CLK_IS_ROOT|CLK_IGNORE_UNUSED,
32768);
@ -548,5 +548,8 @@ void u8500_of_clk_init(u32 clkrst1_base, u32 clkrst2_base, u32 clkrst3_base,
if (!of_node_cmp(child->name, "prcc-kernel-clock"))
of_clk_add_provider(child, ux500_twocell_get, prcc_kclk);
if (!of_node_cmp(child->name, "rtc32k-clock"))
of_clk_add_provider(child, of_clk_src_simple_get, rtc_clk);
}
}