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

From: Daniel Lezcano
Date: Tue Dec 18 2018 - 16:30:19 EST

From: Anson Huang <anson.huang@xxxxxxx>

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@xxxxxxx>
Signed-off-by: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>
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,
+ .of_clk = {
+ .name = "per",
+ },

static int __init tpm_clocksource_init(void)