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clocksource/drivers/timer-microchip-pit64b: Use mchp_pit64b_{suspend, resume}

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Use mchp_pit64b_suspend() and mchp_pit64b_resume() to disable or
enable timers clocks on init and remove specific
clk_prepare_{disable, enable} calls. This is ok also for clockevent timer
as proper clock enable, disable is done on .set_state_oneshot,
.set_state_periodic, .set_state_shutdown calls.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/20220609094041.1796372-3-claudiu.beznea@microchip.com
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
This commit is contained in:
Claudiu Beznea 2022-06-09 12:40:40 +03:00 committed by Daniel Lezcano
parent 2c9c4c9e54
commit b02180e899
1 changed files with 5 additions and 19 deletions
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24
drivers/clocksource/timer-microchip-pit64b.c
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@ -344,6 +344,7 @@ static int __init mchp_pit64b_init_clksrc(struct mchp_pit64b_timer *timer,
if (!cs)
return -ENOMEM;
mchp_pit64b_resume(timer);
mchp_pit64b_reset(timer, ULLONG_MAX, MCHP_PIT64B_MR_CONT, 0);
mchp_pit64b_cs_base = timer->base;
@ -365,8 +366,7 @@ static int __init mchp_pit64b_init_clksrc(struct mchp_pit64b_timer *timer,
pr_debug("clksrc: Failed to register PIT64B clocksource!\n");
/* Stop timer. */
writel_relaxed(MCHP_PIT64B_CR_SWRST,
timer->base + MCHP_PIT64B_CR);
mchp_pit64b_suspend(timer);
kfree(cs);
return ret;
@ -450,19 +450,10 @@ static int __init mchp_pit64b_dt_init_timer(struct device_node *node,
if (ret)
goto irq_unmap;
ret = clk_prepare_enable(timer.pclk);
if (ret)
goto irq_unmap;
if (timer.mode & MCHP_PIT64B_MR_SGCLK) {
ret = clk_prepare_enable(timer.gclk);
if (ret)
goto pclk_unprepare;
if (timer.mode & MCHP_PIT64B_MR_SGCLK)
clk_rate = clk_get_rate(timer.gclk);
} else {
else
clk_rate = clk_get_rate(timer.pclk);
}
clk_rate = clk_rate / (MCHP_PIT64B_MODE_TO_PRES(timer.mode) + 1);
if (clkevt)
@ -471,15 +462,10 @@ static int __init mchp_pit64b_dt_init_timer(struct device_node *node,
ret = mchp_pit64b_init_clksrc(&timer, clk_rate);
if (ret)
goto gclk_unprepare;
goto irq_unmap;
return 0;
gclk_unprepare:
if (timer.mode & MCHP_PIT64B_MR_SGCLK)
clk_disable_unprepare(timer.gclk);
pclk_unprepare:
clk_disable_unprepare(timer.pclk);
irq_unmap:
irq_dispose_mapping(irq);
io_unmap: