diff options
| author | Lars-Peter Clausen <lars@metafoo.de> | 2011-09-24 02:29:54 +0200 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2011-10-24 23:34:25 +0100 |
| commit | fe5a8b7f0602b5a536d23cd3468461e9de76256b (patch) | |
| tree | 4bd2f84494fc578c87a2327d60079151a12d586f /arch/mips/jz4740 | |
| parent | 83bc769200802c9ce8fd1c7315fd14198d385b12 (diff) | |
| download | op-kernel-dev-fe5a8b7f0602b5a536d23cd3468461e9de76256b.zip op-kernel-dev-fe5a8b7f0602b5a536d23cd3468461e9de76256b.tar.gz | |
MIPS: JZ4740: GPIO: Simplify IRQ demuxer
We already know the base IRQ for a GPIO chip, so there is no need to
recalculate it in the demux handler.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: Lars-Peter Clausen <lars@metafoo.de>
Patchwork: http://patchwork.linux-mips.org/patch/2432/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/jz4740')
| -rw-r--r-- | arch/mips/jz4740/gpio.c | 8 |
1 files changed, 1 insertions, 7 deletions
diff --git a/arch/mips/jz4740/gpio.c b/arch/mips/jz4740/gpio.c index 415d7d7..bbbe12b 100644 --- a/arch/mips/jz4740/gpio.c +++ b/arch/mips/jz4740/gpio.c @@ -301,22 +301,16 @@ static void jz_gpio_irq_demux_handler(unsigned int irq, struct irq_desc *desc) { uint32_t flag; unsigned int gpio_irq; - unsigned int gpio_bank; struct jz_gpio_chip *chip = irq_desc_get_handler_data(desc); - gpio_bank = JZ4740_IRQ_GPIO0 - irq; - flag = readl(chip->base + JZ_REG_GPIO_FLAG); - if (!flag) return; - gpio_irq = __fls(flag); + gpio_irq = chip->irq_base + __fls(flag); jz_gpio_check_trigger_both(chip, irq); - gpio_irq += (gpio_bank << 5) + JZ4740_IRQ_GPIO(0); - generic_handle_irq(gpio_irq); }; |
