Modify the timestamp to cyclecounter in i.MX GPT driver
for input capture function.
Add compatible support for NXP i.MX8MM chip in driver.
Signed-off-by: Kane Jiang <[email protected]>
---
drivers/clocksource/timer-imx-gpt.c | 11 +++++++----
include/linux/mxc_icap.h | 2 +-
2 files changed, 8 insertions(+), 5 deletions(-)
diff --git a/drivers/clocksource/timer-imx-gpt.c b/drivers/clocksource/timer-imx-gpt.c
index c6aa1462e441..816bf4e123c3 100644
--- a/drivers/clocksource/timer-imx-gpt.c
+++ b/drivers/clocksource/timer-imx-gpt.c
@@ -417,22 +417,23 @@ static irqreturn_t mxc_timer_interrupt(int irq, void *dev_id)
for (i = 0; i < 2; i++) {
struct icap_channel *ic = &icap_channel[i];
- ktime_t timestamp;
+ u64 cyclecounter;
if (!imxtm->gpt->gpt_is_ic_irq(ic, tstat))
continue;
imxtm->gpt->gpt_ic_irq_acknowledge(ic);
- timestamp = ns_to_ktime(timecounter_read(&ic->tc));
+ cyclecounter = ic->cc.read(&ic->cc);
if (ic->handler)
- ic->handler(ic->chan, ic->dev_id, timestamp);
+ ic->handler(ic->chan, ic->dev_id, cyclecounter);
}
if (imxtm->gpt->gpt_is_oc_irq(imxtm, tstat)) {
imxtm->gpt->gpt_oc_irq_acknowledge(imxtm);
- ced->event_handler(ced);
+ if (ced->event_handler)
+ ced->event_handler(ced);
}
return IRQ_HANDLED;
@@ -802,6 +803,7 @@ static const struct of_device_id timer_of_match[] = {
{ .compatible = "fsl,imx6dl-gpt" },
{ .compatible = "fsl,imx6sl-gpt" },
{ .compatible = "fsl,imx6sx-gpt" },
+ { .compatible = "fsl,imx8mm-gpt" },
{ },
};
MODULE_DEVICE_TABLE(of, timer_of_match);
@@ -901,3 +903,4 @@ TIMER_OF_DECLARE(imx6q_timer, "fsl,imx6q-gpt", imx31_timer_init_dt);
TIMER_OF_DECLARE(imx6dl_timer, "fsl,imx6dl-gpt", imx6dl_timer_init_dt);
TIMER_OF_DECLARE(imx6sl_timer, "fsl,imx6sl-gpt", imx6dl_timer_init_dt);
TIMER_OF_DECLARE(imx6sx_timer, "fsl,imx6sx-gpt", imx6dl_timer_init_dt);
+TIMER_OF_DECLARE(imx8mm_timer, "fsl,imx8mm-gpt", imx6dl_timer_init_dt);
diff --git a/include/linux/mxc_icap.h b/include/linux/mxc_icap.h
index fa5ffdf3b589..292c15b6b028 100644
--- a/include/linux/mxc_icap.h
+++ b/include/linux/mxc_icap.h
@@ -7,7 +7,7 @@
#ifndef __MXC_ICAP_H__
#define __MXC_ICAP_H__
-typedef void (*mxc_icap_handler_t)(int, void *, ktime_t);
+typedef void (*mxc_icap_handler_t)(int, void *, u64);
int mxc_request_input_capture(unsigned int chan, mxc_icap_handler_t handler,
unsigned long capflags, void *dev_id);
--
2.25.1