add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/irqchip/irq-sun4i.c
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@@ -189,7 +189,7 @@
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 	 * 3) spurious irq
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 	 * So if we immediately get a reading of 0, check the irq-pending reg
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 	 * to differentiate between 2 and 3. We only do this once to avoid
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-	 * the extra check in the common case of 1 hapening after having
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+	 * the extra check in the common case of 1 happening after having
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 	 * read the vector-reg once.
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 	 */
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 	hwirq = readl(irq_ic_data->irq_base + SUN4I_IRQ_VECTOR_REG) >> 2;