clocksource/drivers/timer-imx-tpm: Specify clock name for timer-of

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>

diff --git a/drivers/clocksource/timer-imx-tpm.c b/drivers/clocksource/timer-imx-tpm.c
index c3dd4d2f2a6edcfb79f19c912263e7ef5185da86..c1d52d5264c27fe7ad57bf84039bf50df3bc4f2d 100644 (file)
--- 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)