Some MediaTek SoC like MT8516 need to enable additional clocks
for the GPT timer. Enable them if present.
Signed-off-by: Fabien Parent <fparent@xxxxxxxxxxxx>
---
drivers/clocksource/timer-mediatek.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/drivers/clocksource/timer-mediatek.c b/drivers/clocksource/timer-mediatek.c
index 9318edcd8963..42e2d2090484 100644
--- a/drivers/clocksource/timer-mediatek.c
+++ b/drivers/clocksource/timer-mediatek.c
@@ -9,6 +9,7 @@
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+#include <linux/clk.h>
#include <linux/clockchips.h>
#include <linux/clocksource.h>
#include <linux/interrupt.h>
@@ -278,8 +279,19 @@ static int __init mtk_syst_init(struct device_node *node)
static int __init mtk_gpt_init(struct device_node *node)
{
+ struct clk *clk_13m, *clk_bus;
int ret;
+ /* Optional clock*/
+ clk_13m = of_clk_get_by_name(node, "clk13m");
+ if (!IS_ERR(clk_13m))
+ clk_prepare_enable(clk_13m);
+
+ /* Optional clock*/
+ clk_bus = of_clk_get_by_name(node, "bus");
+ if (!IS_ERR(clk_bus))
+ clk_prepare_enable(clk_bus);
+
to.clkevt.features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT;
to.clkevt.set_state_shutdown = mtk_gpt_clkevt_shutdown;
to.clkevt.set_state_periodic = mtk_gpt_clkevt_set_periodic;
--
2.28.0
