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clocksource/drivers/timer-atmel-tcb: Add sama5d2 support 

The first divisor for the sama5d2 is actually the gclk selector. Because
the currently remaining divisors are fitting the use case, currently ensure
it is skipped.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20200710230813.1005150-10-alexandre.belloni@bootlin.com
This commit is contained in:
Alexandre Belloni 2020-07-11 01:08:13 +02:00 committed by Daniel Lezcano
parent 501465d5d7
commit 467ae18aa0
1 changed files with 10 additions and 1 deletions
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11
drivers/clocksource/timer-atmel-tcb.c
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@ -359,9 +359,15 @@ static struct atmel_tcb_config tcb_sam9x5_config = {
.counter_width = 32,
};
static struct atmel_tcb_config tcb_sama5d2_config = {
.counter_width = 32,
.has_gclk = 1,
};
static const struct of_device_id atmel_tcb_of_match[] = {
{ .compatible = "atmel,at91rm9200-tcb", .data = &tcb_rm9200_config, },
{ .compatible = "atmel,at91sam9x5-tcb", .data = &tcb_sam9x5_config, },
{ .compatible = "atmel,sama5d2-tcb", .data = &tcb_sama5d2_config, },
{ /* sentinel */ }
};
@ -426,7 +432,10 @@ static int __init tcb_clksrc_init(struct device_node *node)
/* How fast will we be counting? Pick something over 5 MHz. */
rate = (u32) clk_get_rate(t0_clk);
for (i = 0; i < ARRAY_SIZE(atmel_tcb_divisors); i++) {
i = 0;
if (tc.tcb_config->has_gclk)
i = 1;
for (; i < ARRAY_SIZE(atmel_tcb_divisors); i++) {
unsigned divisor = atmel_tcb_divisors[i];
unsigned tmp;