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authorEzequiel Garcia <ezequiel.garcia@free-electrons.com>2013-08-20 19:45:53 +0400
committerDaniel Lezcano <daniel.lezcano@linaro.org>2013-09-02 23:44:52 +0400
commit5e9fe6cb1ba5ad321473e7b9c39fbe164129520d (patch)
tree3b17125e814bfbc21f82fb4f580d8d820024e566 /drivers/clocksource
parentec8e51120a5b167e22ee29f4f427a0cb66eb445b (diff)
downloadlinux-5e9fe6cb1ba5ad321473e7b9c39fbe164129520d.tar.xz
clocksource: armada-370-xp: Get reference fixed-clock by name
The Armada XP timer has two mandatory clock inputs: nbclk and refclk, as specified by the device-tree binding. This commit fixes the clock selection. Instead of hard-coding the clock rate for the 25 MHz reference fixed-clock, obtain the clock by its name. Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Jason Cooper <jason@lakedaemon.net> Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Diffstat (limited to 'drivers/clocksource')
-rw-r--r--drivers/clocksource/time-armada-370-xp.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/clocksource/time-armada-370-xp.c b/drivers/clocksource/time-armada-370-xp.c
index 6ca185df48c4..44c4fff2f58c 100644
--- a/drivers/clocksource/time-armada-370-xp.c
+++ b/drivers/clocksource/time-armada-370-xp.c
@@ -294,8 +294,11 @@ static void __init armada_370_xp_timer_common_init(struct device_node *np)
static void __init armada_xp_timer_init(struct device_node *np)
{
- /* The fixed 25MHz timer is required, timer25Mhz is true by default */
- timer_clk = 25000000;
+ struct clk *clk = of_clk_get_by_name(np, "fixed");
+
+ /* The 25Mhz fixed clock is mandatory, and must always be available */
+ BUG_ON(IS_ERR(clk));
+ timer_clk = clk_get_rate(clk);
armada_370_xp_timer_common_init(np);
}