[ARM] 4002/1: S3C24XX: leave parent IRQs unmasked
Do not bother masking/unmasking the parent IRQ for the mulitplexed EINT irqs, as masking the leaf seems to be fine. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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@ -206,18 +206,6 @@ s3c_irqext_mask(unsigned int irqno)
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mask = __raw_readl(S3C24XX_EINTMASK);
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mask |= ( 1UL << irqno);
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__raw_writel(mask, S3C24XX_EINTMASK);
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if (irqno <= (IRQ_EINT7 - EXTINT_OFF)) {
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/* check to see if all need masking */
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if ((mask & (0xf << 4)) == (0xf << 4)) {
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/* all masked, mask the parent */
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s3c_irq_mask(IRQ_EINT4t7);
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}
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} else {
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/* todo: the same check as above for the rest of the irq regs...*/
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}
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}
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static void
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@ -229,7 +217,6 @@ s3c_irqext_ack(unsigned int irqno)
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bit = 1UL << (irqno - EXTINT_OFF);
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mask = __raw_readl(S3C24XX_EINTMASK);
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__raw_writel(bit, S3C24XX_EINTPEND);
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@ -258,8 +245,6 @@ s3c_irqext_unmask(unsigned int irqno)
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mask = __raw_readl(S3C24XX_EINTMASK);
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mask &= ~( 1UL << irqno);
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__raw_writel(mask, S3C24XX_EINTMASK);
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s3c_irq_unmask((irqno <= (IRQ_EINT7 - EXTINT_OFF)) ? IRQ_EINT4t7 : IRQ_EINT8t23);
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}
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int
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