[18/25] clocksource/drivers/timer-imx-tpm: Specify clock name for timer-of

Message ID 20181218212844.30445-18-daniel.lezcano@linaro.org
State Accepted
Commit 4f352d1fc5a8d3220e29766a26172eff34867014
Headers show
  • [01/25] clocksource/drivers/timer-vt8500: Remove duplicate function name
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Commit Message

Daniel Lezcano Dec. 18, 2018, 9:28 p.m.
From: Anson Huang <anson.huang@nxp.com>

i.MX TPM needs "ipg" clock for register access and "per" clock for
timer function, the driver gets "ipg" clock by searching the clock
name, but timer-of initialization will get first clock in device
tree TPM node since no clock name specified in of_clk, that means
the "per" clock MUST be the first clock entry in device tree TPM
node, this patch specifies clock name for of_clk to avoid this
restriction, it makes TPM driver work properly with different sequence
of clock entries in device tree TPM node.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>

 drivers/clocksource/timer-imx-tpm.c | 3 +++
 1 file changed, 3 insertions(+)



diff --git a/drivers/clocksource/timer-imx-tpm.c b/drivers/clocksource/timer-imx-tpm.c
index c3dd4d2f2a6e..c1d52d5264c2 100644
--- a/drivers/clocksource/timer-imx-tpm.c
+++ b/drivers/clocksource/timer-imx-tpm.c
@@ -139,6 +139,9 @@  static struct timer_of to_tpm = {
 		.handler		= tpm_timer_interrupt,
 		.flags			= IRQF_TIMER | IRQF_IRQPOLL,
+	.of_clk = {
+		.name = "per",
+	},
 static int __init tpm_clocksource_init(void)