diff options
Diffstat (limited to 'drivers/clocksource/tegra20_timer.c')
| -rw-r--r-- | drivers/clocksource/tegra20_timer.c | 73 | 
1 files changed, 27 insertions, 46 deletions
| diff --git a/drivers/clocksource/tegra20_timer.c b/drivers/clocksource/tegra20_timer.c index 0bde03feb09..2e4d8a666c3 100644 --- a/drivers/clocksource/tegra20_timer.c +++ b/drivers/clocksource/tegra20_timer.c @@ -154,29 +154,12 @@ static struct irqaction tegra_timer_irq = {  	.dev_id		= &tegra_clockevent,  }; -static const struct of_device_id timer_match[] __initconst = { -	{ .compatible = "nvidia,tegra20-timer" }, -	{} -}; - -static const struct of_device_id rtc_match[] __initconst = { -	{ .compatible = "nvidia,tegra20-rtc" }, -	{} -}; - -static void __init tegra20_init_timer(void) +static void __init tegra20_init_timer(struct device_node *np)  { -	struct device_node *np;  	struct clk *clk;  	unsigned long rate;  	int ret; -	np = of_find_matching_node(NULL, timer_match); -	if (!np) { -		pr_err("Failed to find timer DT node\n"); -		BUG(); -	} -  	timer_reg_base = of_iomap(np, 0);  	if (!timer_reg_base) {  		pr_err("Can't map timer registers\n"); @@ -200,30 +183,6 @@ static void __init tegra20_init_timer(void)  	of_node_put(np); -	np = of_find_matching_node(NULL, rtc_match); -	if (!np) { -		pr_err("Failed to find RTC DT node\n"); -		BUG(); -	} - -	rtc_base = of_iomap(np, 0); -	if (!rtc_base) { -		pr_err("Can't map RTC registers"); -		BUG(); -	} - -	/* -	 * rtc registers are used by read_persistent_clock, keep the rtc clock -	 * enabled -	 */ -	clk = clk_get_sys("rtc-tegra", NULL); -	if (IS_ERR(clk)) -		pr_warn("Unable to get rtc-tegra clock\n"); -	else -		clk_prepare_enable(clk); - -	of_node_put(np); -  	switch (rate) {  	case 12000000:  		timer_writel(0x000b, TIMERUS_USEC_CFG); @@ -259,12 +218,34 @@ static void __init tegra20_init_timer(void)  	tegra_clockevent.irq = tegra_timer_irq.irq;  	clockevents_config_and_register(&tegra_clockevent, 1000000,  					0x1, 0x1fffffff); -#ifdef CONFIG_HAVE_ARM_TWD -	twd_local_timer_of_register(); -#endif +} +CLOCKSOURCE_OF_DECLARE(tegra20_timer, "nvidia,tegra20-timer", tegra20_init_timer); + +static void __init tegra20_init_rtc(struct device_node *np) +{ +	struct clk *clk; + +	rtc_base = of_iomap(np, 0); +	if (!rtc_base) { +		pr_err("Can't map RTC registers"); +		BUG(); +	} + +	/* +	 * rtc registers are used by read_persistent_clock, keep the rtc clock +	 * enabled +	 */ +	clk = clk_get_sys("rtc-tegra", NULL); +	if (IS_ERR(clk)) +		pr_warn("Unable to get rtc-tegra clock\n"); +	else +		clk_prepare_enable(clk); + +	of_node_put(np); +  	register_persistent_clock(NULL, tegra_read_persistent_clock);  } -CLOCKSOURCE_OF_DECLARE(tegra20, "nvidia,tegra20-timer", tegra20_init_timer); +CLOCKSOURCE_OF_DECLARE(tegra20_rtc, "nvidia,tegra20-rtc", tegra20_init_rtc);  #ifdef CONFIG_PM  static u32 usec_config; |