linux-kernel - [tip: timers/core] clocksource/drivers/imx-tpm: Add support for ARM64

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Message-ID: <159101710955.17951.14810721083224334490.tip-bot2@tip-bot2>
Date:   Mon, 01 Jun 2020 13:11:49 -0000
From:   "tip-bot2 for Anson Huang" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     Anson Huang <Anson.Huang@....com>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        x86 <x86@...nel.org>, LKML <linux-kernel@...r.kernel.org>
Subject: [tip: timers/core] clocksource/drivers/imx-tpm: Add support for ARM64

The following commit has been merged into the timers/core branch of tip:

Commit-ID:     ac161f57b66dcf14b3339b1c5857c08a9ad4d833
Gitweb:        https://git.kernel.org/tip/ac161f57b66dcf14b3339b1c5857c08a9ad4d833
Author:        Anson Huang <Anson.Huang@....com>
AuthorDate:    Wed, 01 Apr 2020 12:27:02 +08:00
Committer:     Daniel Lezcano <daniel.lezcano@...aro.org>
CommitterDate: Thu, 09 Apr 2020 16:24:50 +02:00

clocksource/drivers/imx-tpm: Add support for ARM64

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@....com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@...aro.org>
Link: https://lore.kernel.org/r/1585715222-24489-1-git-send-email-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);