The following commit has been merged into the timers/core branch of tip:
Commit-ID: f3af3dc7cc351bd22742eac992c72c76749ce8c3
Gitweb: https://git.kernel.org/tip/f3af3dc7cc351bd22742eac992c72c76749ce8c3
Author: Claudiu Beznea <claudiu.beznea@xxxxxxxxxxxxx>
AuthorDate: Fri, 03 Feb 2023 15:05:37 +02:00
Committer: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>
CommitterDate: Mon, 13 Feb 2023 13:10:17 +01:00
clocksource/drivers/timer-microchip-pit64b: Add delay timer
Add delay timer.
Signed-off-by: Claudiu Beznea <claudiu.beznea@xxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20230203130537.1921608-3-claudiu.beznea@xxxxxxxxxxxxx
Signed-off-by: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>
---
drivers/clocksource/timer-microchip-pit64b.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/drivers/clocksource/timer-microchip-pit64b.c b/drivers/clocksource/timer-microchip-pit64b.c
index d5f1436..57209bb 100644
--- a/drivers/clocksource/timer-microchip-pit64b.c
+++ b/drivers/clocksource/timer-microchip-pit64b.c
@@ -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;
}
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