MIPS: ath79: Use a helper function to get system clock rates
The ath79 platform uses similar code to get the
rate of various clocks during init. Separate the
similar code into a new helper function and use
that to avoid code duplication.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5778/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/ath79/clock.c b/arch/mips/ath79/clock.c
index 4378d63..c8351b4 100644
--- a/arch/mips/ath79/clock.c
+++ b/arch/mips/ath79/clock.c
@@ -400,6 +400,22 @@
(ath79_ref_clk.rate / 1000) % 1000);
}
+unsigned long __init
+ath79_get_sys_clk_rate(const char *id)
+{
+ struct clk *clk;
+ unsigned long rate;
+
+ clk = clk_get(NULL, id);
+ if (IS_ERR(clk))
+ panic("unable to get %s clock, err=%d", id, (int) PTR_ERR(clk));
+
+ rate = clk_get_rate(clk);
+ clk_put(clk);
+
+ return rate;
+}
+
/*
* Linux clock API
*/