clocksource/mtu-nomadik: use apb_pclk
After improving the clock tree we need to make sure the the
MTU timer explicitly grabs and enables it silicon clock
(pclk).
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Mike Turquette <mturquette@ti.com>
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
diff --git a/drivers/clocksource/nomadik-mtu.c b/drivers/clocksource/nomadik-mtu.c
index 23c780b..8914c3c 100644
--- a/drivers/clocksource/nomadik-mtu.c
+++ b/drivers/clocksource/nomadik-mtu.c
@@ -177,9 +177,15 @@
void __init nmdk_timer_init(void __iomem *base, int irq)
{
unsigned long rate;
- struct clk *clk0;
+ struct clk *clk0, *pclk0;
mtu_base = base;
+
+ pclk0 = clk_get_sys("mtu0", "apb_pclk");
+ BUG_ON(IS_ERR(pclk0));
+ BUG_ON(clk_prepare(pclk0) < 0);
+ BUG_ON(clk_enable(pclk0) < 0);
+
clk0 = clk_get_sys("mtu0", NULL);
BUG_ON(IS_ERR(clk0));
BUG_ON(clk_prepare(clk0) < 0);