* [PATCH] clocksource/drivers/timer-imx-tpm: Specify clock name for timer-of
@ 2018-12-07 6:05 Anson Huang
2018-12-07 7:07 ` Daniel Lezcano
0 siblings, 1 reply; 2+ messages in thread
From: Anson Huang @ 2018-12-07 6:05 UTC (permalink / raw)
To: daniel.lezcano, tglx, linux-kernel; +Cc: dl-linux-imx
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>
---
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 c3dd4d2..c1d52d5 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)
--
2.7.4
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] clocksource/drivers/timer-imx-tpm: Specify clock name for timer-of
2018-12-07 6:05 [PATCH] clocksource/drivers/timer-imx-tpm: Specify clock name for timer-of Anson Huang
@ 2018-12-07 7:07 ` Daniel Lezcano
0 siblings, 0 replies; 2+ messages in thread
From: Daniel Lezcano @ 2018-12-07 7:07 UTC (permalink / raw)
To: Anson Huang, tglx, linux-kernel; +Cc: dl-linux-imx
On 07/12/2018 07:05, Anson Huang wrote:
> 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>
> ---
Applied.
Thanks.
-- Daniel
--
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