From: Anson Huang <Anson.Huang@nxp.com>
To: daniel.lezcano@linaro.org, tglx@linutronix.de,
shawnguo@kernel.org, s.hauer@pengutronix.de,
kernel@pengutronix.de, festevam@gmail.com,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Cc: Linux-imx@nxp.com
Subject: [PATCH] clocksource/drivers/imx-tpm: Add support for ARM64
Date: Wed, 1 Apr 2020 12:27:02 +0800 [thread overview]
Message-ID: <1585715222-24489-1-git-send-email-Anson.Huang@nxp.com> (raw)
Allows building and compile-testing the i.MX TPM driver also
for ARM64. The delay_timer is only supported on ARMv7.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
---
drivers/clocksource/timer-imx-tpm.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/drivers/clocksource/timer-imx-tpm.c b/drivers/clocksource/timer-imx-tpm.c
index 6334a35..2cdc077 100644
--- a/drivers/clocksource/timer-imx-tpm.c
+++ b/drivers/clocksource/timer-imx-tpm.c
@@ -61,17 +61,19 @@ static inline void tpm_irq_acknowledge(void)
writel(TPM_STATUS_CH0F, timer_base + TPM_STATUS);
}
-static struct delay_timer tpm_delay_timer;
-
static inline unsigned long tpm_read_counter(void)
{
return readl(timer_base + TPM_CNT);
}
+#if defined(CONFIG_ARM)
+static struct delay_timer tpm_delay_timer;
+
static unsigned long tpm_read_current_timer(void)
{
return tpm_read_counter();
}
+#endif
static u64 notrace tpm_read_sched_clock(void)
{
@@ -144,9 +146,11 @@ static struct timer_of to_tpm = {
static int __init tpm_clocksource_init(void)
{
+#if defined(CONFIG_ARM)
tpm_delay_timer.read_current_timer = &tpm_read_current_timer;
tpm_delay_timer.freq = timer_of_rate(&to_tpm) >> 3;
register_current_timer_delay(&tpm_delay_timer);
+#endif
sched_clock_register(tpm_read_sched_clock, counter_width,
timer_of_rate(&to_tpm) >> 3);
--
2.7.4
next reply other threads:[~2020-04-01 4:34 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-01 4:27 Anson Huang [this message]
2020-04-09 14:25 ` [PATCH] clocksource/drivers/imx-tpm: Add support for ARM64 Daniel Lezcano
2020-06-01 13:11 ` [tip: timers/core] " tip-bot2 for Anson Huang
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1585715222-24489-1-git-send-email-Anson.Huang@nxp.com \
--to=anson.huang@nxp.com \
--cc=Linux-imx@nxp.com \
--cc=daniel.lezcano@linaro.org \
--cc=festevam@gmail.com \
--cc=kernel@pengutronix.de \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=s.hauer@pengutronix.de \
--cc=shawnguo@kernel.org \
--cc=tglx@linutronix.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).