diff options
| author |   Alexandre Belloni <alexandre.belloni@bootlin.com> | 2020-07-11 01:08:13 +0200 |
|---|---|---|
| committer |   Daniel Lezcano <daniel.lezcano@linaro.org> | 2020-07-11 18:58:24 +0200 |
| commit | 467ae18aa057c44417afc92896879c2fb37a8b65 (patch) | |
| tree | 4bcd0836ea4ddb74ab8cd3184f8bdd52f4ba3621 /drivers/clocksource | |
| parent | clocksource/drivers/timer-atmel-tcb: Allow selecting first divider (diff) | |
| download | wireguard-linux-467ae18aa057c44417afc92896879c2fb37a8b65.tar.xz wireguard-linux-467ae18aa057c44417afc92896879c2fb37a8b65.zip | |
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
Diffstat (limited to 'drivers/clocksource')
| -rw-r--r-- | drivers/clocksource/timer-atmel-tcb.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/clocksource/timer-atmel-tcb.c b/drivers/clocksource/timer-atmel-tcb.c index 7fea134650fc..787dbebbb432 100644 --- a/drivers/clocksource/timer-atmel-tcb.c +++ b/drivers/clocksource/timer-atmel-tcb.c @@ -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; |