ARM: S3C64XX: Use chip_data to store the shift for EINTs
This makes all the functions that use the shift slightly smaller, one instruction in most cases but more for ack() and maskack(). Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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@ -30,14 +30,14 @@
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#include <plat/pm.h>
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#define eint_offset(irq) ((irq) - IRQ_EINT(0))
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#define eint_irq_to_bit(irq) (1 << eint_offset(irq))
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#define eint_irq_to_bit(irq) ((u32)(1 << eint_offset(irq)))
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static inline void s3c_irq_eint_mask(struct irq_data *data)
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{
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u32 mask;
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mask = __raw_readl(S3C64XX_EINT0MASK);
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mask |= eint_irq_to_bit(data->irq);
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mask |= (u32)data->chip_data;
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__raw_writel(mask, S3C64XX_EINT0MASK);
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}
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@ -46,13 +46,13 @@ static void s3c_irq_eint_unmask(struct irq_data *data)
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u32 mask;
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mask = __raw_readl(S3C64XX_EINT0MASK);
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mask &= ~eint_irq_to_bit(data->irq);
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mask &= ~((u32)data->chip_data);
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__raw_writel(mask, S3C64XX_EINT0MASK);
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}
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static inline void s3c_irq_eint_ack(struct irq_data *data)
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{
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__raw_writel(eint_irq_to_bit(data->irq), S3C64XX_EINT0PEND);
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__raw_writel((u32)data->chip_data, S3C64XX_EINT0PEND);
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}
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static void s3c_irq_eint_maskack(struct irq_data *data)
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@ -198,6 +198,7 @@ static int __init s3c64xx_init_irq_eint(void)
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for (irq = IRQ_EINT(0); irq <= IRQ_EINT(27); irq++) {
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set_irq_chip(irq, &s3c_irq_eint);
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set_irq_chip_data(irq, (void *)eint_irq_to_bit(irq));
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set_irq_handler(irq, handle_level_irq);
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set_irq_flags(irq, IRQF_VALID);
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}
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