Commit f3af3dc7 authored by Claudiu Beznea's avatar Claudiu Beznea Committed by Daniel Lezcano
Browse files

clocksource/drivers/timer-microchip-pit64b: Add delay timer 



Add delay timer.

Signed-off-by: default avatarClaudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/20230203130537.1921608-3-claudiu.beznea@microchip.com


Signed-off-by: default avatarDaniel Lezcano <daniel.lezcano@linaro.org>
parent d19c8b2e

drivers/clocksource/timer-microchip-pit64b.c

+12 −0
Original line number Diff line number Diff line
@@ -9,6 +9,7 @@ 


#include <linux/clk.h>

#include <linux/clockchips.h>

#include <linux/delay.h>

#include <linux/interrupt.h>

#include <linux/of_address.h>

#include <linux/of_irq.h>
@@ -92,6 +93,8 @@ struct mchp_pit64b_clksrc { 
static void __iomem *mchp_pit64b_cs_base;

/* Default cycles for clockevent timer. */

static u64 mchp_pit64b_ce_cycles;

/* Delay timer. */

static struct delay_timer mchp_pit64b_dt;



static inline u64 mchp_pit64b_cnt_read(void __iomem *base)

{
@@ -169,6 +172,11 @@ static u64 notrace mchp_pit64b_sched_read_clk(void) 
	return mchp_pit64b_cnt_read(mchp_pit64b_cs_base);

}



static unsigned long notrace mchp_pit64b_dt_read(void)

{

	return mchp_pit64b_cnt_read(mchp_pit64b_cs_base);

}



static int mchp_pit64b_clkevt_shutdown(struct clock_event_device *cedev)

{

	struct mchp_pit64b_timer *timer = clkevt_to_mchp_pit64b_timer(cedev);
@@ -376,6 +384,10 @@ static int __init mchp_pit64b_init_clksrc(struct mchp_pit64b_timer *timer, 


	sched_clock_register(mchp_pit64b_sched_read_clk, 64, clk_rate);



	mchp_pit64b_dt.read_current_timer = mchp_pit64b_dt_read;

	mchp_pit64b_dt.freq = clk_rate;

	register_current_timer_delay(&mchp_pit64b_dt);



	return 0;

}