Convert the driver to use the timer_of helpers.
This allows to remove custom proprietary structure,
factors out and simplifies the code.

Signed-off-by: Stanley Chu <redacted>
---
 drivers/clocksource/timer-mediatek.c |  222 ++++++++++++++++------------------
 1 file changed, 104 insertions(+), 118 deletions(-)

diff --git a/drivers/clocksource/timer-mediatek.c b/drivers/clocksource/timer-mediatek.c
index ff284f2..d94d8e1 100644
--- a/drivers/clocksource/timer-mediatek.c
+++ b/drivers/clocksource/timer-mediatek.c

@@ -18,16 +18,13 @@
 
 #define pr_fmt(fmt)	KBUILD_MODNAME ": " fmt
 
-#include <linux/clk.h>
 #include <linux/clockchips.h>
+#include <linux/clocksource.h>
 #include <linux/interrupt.h>
-#include <linux/irq.h>
 #include <linux/irqreturn.h>
-#include <linux/of.h>
-#include <linux/of_address.h>
-#include <linux/of_irq.h>
 #include <linux/sched_clock.h>
 #include <linux/slab.h>
+#include "timer-of.h"
 
 #define GPT_IRQ_EN_REG		0x00
 #define GPT_IRQ_ENABLE(val)	BIT((val) - 1)

@@ -56,49 +53,57 @@
 #define GPT_CLK_EVT	1
 #define GPT_CLK_SRC	2
 
-struct mtk_clock_event_device {
-	void __iomem *gpt_base;
-	u32 ticks_per_jiffy;
-	struct clock_event_device dev;
+struct mtk_timer_private {
+	unsigned long ticks_per_jiffy;
 };