clocksource/drivers/timer-atmel-tcb: Add sama5d2 support (467ae18a) · Commits · 戴 / test

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

drivers/clocksource/timer-atmel-tcb.c

+10 −1

Original line number	Diff line number	Diff line
		@@ -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;

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