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Subject[PATCH v1 1/3] clocksource/drivers/tegra: Remove duplicated use of per_cpu_ptr
Date
It was left unnoticed by accident, which means that the code could be
cleaned up a tad more.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
---
drivers/clocksource/timer-tegra.c | 40 +++++++++++++++++++------------
1 file changed, 25 insertions(+), 15 deletions(-)

diff --git a/drivers/clocksource/timer-tegra.c b/drivers/clocksource/timer-tegra.c
index 9406855781ff..6da169de47f9 100644
--- a/drivers/clocksource/timer-tegra.c
+++ b/drivers/clocksource/timer-tegra.c
@@ -216,6 +216,19 @@ static inline unsigned int tegra_irq_idx_for_cpu(int cpu, bool tegra20)
return TIMER10_IRQ_IDX + cpu;
}

+static inline unsigned long tegra_rate_for_timer(struct timer_of *to,
+ bool tegra20)
+{
+ /*
+ * TIMER1-9 are fixed to 1MHz, TIMER10-13 are running off the
+ * parent clock.
+ */
+ if (tegra20)
+ return 1000000;
+
+ return to->of_clk.rate;
+}
+
static int __init tegra_init_timer(struct device_node *np, bool tegra20,
int rating)
{
@@ -268,30 +281,27 @@ static int __init tegra_init_timer(struct device_node *np, bool tegra20,

for_each_possible_cpu(cpu) {
struct timer_of *cpu_to = per_cpu_ptr(&tegra_to, cpu);
+ unsigned long flags = IRQF_TIMER | IRQF_NOBALANCING;
+ unsigned long rate = tegra_rate_for_timer(&tegra_to, tegra20);
unsigned int base = tegra_base_for_cpu(cpu, tegra20);
unsigned int idx = tegra_irq_idx_for_cpu(cpu, tegra20);
+ unsigned int irq = irq_of_parse_and_map(np, idx);

- /*
- * TIMER1-9 are fixed to 1MHz, TIMER10-13 are running off the
- * parent clock.
- */
- if (tegra20)
- cpu_to->of_clk.rate = 1000000;
-
- cpu_to = per_cpu_ptr(&tegra_to, cpu);
- cpu_to->of_base.base = timer_reg_base + base;
- cpu_to->clkevt.rating = rating;
- cpu_to->clkevt.cpumask = cpumask_of(cpu);
- cpu_to->clkevt.irq = irq_of_parse_and_map(np, idx);
- if (!cpu_to->clkevt.irq) {
+ if (!irq) {
pr_err("failed to map irq for cpu%d\n", cpu);
ret = -EINVAL;
goto out_irq;
}

+ cpu_to->clkevt.irq = irq;
+ cpu_to->clkevt.rating = rating;
+ cpu_to->clkevt.cpumask = cpumask_of(cpu);
+ cpu_to->of_base.base = timer_reg_base + base;
+ cpu_to->of_clk.rate = rate;
+
irq_set_status_flags(cpu_to->clkevt.irq, IRQ_NOAUTOEN);
- ret = request_irq(cpu_to->clkevt.irq, tegra_timer_isr,
- IRQF_TIMER | IRQF_NOBALANCING,
+
+ ret = request_irq(cpu_to->clkevt.irq, tegra_timer_isr, flags,
cpu_to->clkevt.name, &cpu_to->clkevt);
if (ret) {
pr_err("failed to set up irq for cpu%d: %d\n",
--
2.21.0
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