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Reminds me of the I2C driver for EMMA2RH that MontaVista posted, I
ought to take the time to shape it up...
//Markus
Shinya Kuribayashi wrote:
> Let's use immediate value, instead. This also saves memory
> footprint, and probably a little bit faster.
>
> Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@xxxxxxxxx>
> --- arch/mips/emma/markeins/irq.c | 4 ++--
> arch/mips/emma/markeins/irq_markeins.c | 19 ++++++++----------- 2
> files changed, 10 insertions(+), 13 deletions(-)
>
> diff --git a/arch/mips/emma/markeins/irq.c
> b/arch/mips/emma/markeins/irq.c index c0f9d46..3577fd5 100644 ---
> a/arch/mips/emma/markeins/irq.c +++ b/arch/mips/emma/markeins/irq.c
> @@ -54,7 +54,7 @@ */
>
> extern void emma2rh_sw_irq_init(void); -extern void
> emma2rh_gpio_irq_init(u32 base); +extern void
> emma2rh_gpio_irq_init(void); extern void emma2rh_irq_init(void);
> extern void emma2rh_irq_dispatch(void);
>
> @@ -104,7 +104,7 @@ void __init arch_init_irq(void) /* init all
> controllers */ emma2rh_irq_init(); emma2rh_sw_irq_init(); -
> emma2rh_gpio_irq_init(EMMA2RH_GPIO_IRQ_BASE); +
> emma2rh_gpio_irq_init(); mips_cpu_irq_init();
>
> /* setup cascade interrupts */ diff --git
> a/arch/mips/emma/markeins/irq_markeins.c
> b/arch/mips/emma/markeins/irq_markeins.c index 1883421..ea27ec5
> 100644 --- a/arch/mips/emma/markeins/irq_markeins.c +++
> b/arch/mips/emma/markeins/irq_markeins.c @@ -30,8 +30,6 @@ #include
> <asm/debug.h> #include <asm/emma/emma2rh.h>
>
> -static int emma2rh_gpio_irq_base = -1; - void
> ll_emma2rh_sw_irq_enable(int reg); void
> ll_emma2rh_sw_irq_disable(int reg); void
> ll_emma2rh_gpio_irq_enable(int reg); @@ -91,17 +89,17 @@ void
> ll_emma2rh_sw_irq_disable(int irq)
>
> static void emma2rh_gpio_irq_enable(unsigned int irq) { -
> ll_emma2rh_gpio_irq_enable(irq - emma2rh_gpio_irq_base); +
> ll_emma2rh_gpio_irq_enable(irq - EMMA2RH_GPIO_IRQ_BASE); }
>
> static void emma2rh_gpio_irq_disable(unsigned int irq) { -
> ll_emma2rh_gpio_irq_disable(irq - emma2rh_gpio_irq_base); +
> ll_emma2rh_gpio_irq_disable(irq - EMMA2RH_GPIO_IRQ_BASE); }
>
> static void emma2rh_gpio_irq_ack(unsigned int irq) { - irq -=
> emma2rh_gpio_irq_base; + irq -= EMMA2RH_GPIO_IRQ_BASE;
> emma2rh_out32(EMMA2RH_GPIO_INT_ST, ~(1 << irq));
> ll_emma2rh_gpio_irq_disable(irq); } @@ -109,7 +107,7 @@ static void
> emma2rh_gpio_irq_ack(unsigned int irq) static void
> emma2rh_gpio_irq_end(unsigned int irq) { if (!(irq_desc[irq].status
> & (IRQ_DISABLED | IRQ_INPROGRESS))) -
> ll_emma2rh_gpio_irq_enable(irq - emma2rh_gpio_irq_base); +
> ll_emma2rh_gpio_irq_enable(irq - EMMA2RH_GPIO_IRQ_BASE); }
>
> struct irq_chip emma2rh_gpio_irq_controller = { @@ -121,14 +119,13
> @@ struct irq_chip emma2rh_gpio_irq_controller = { .end =
> emma2rh_gpio_irq_end, };
>
> -void emma2rh_gpio_irq_init(u32 irq_base) +void
> emma2rh_gpio_irq_init(void) { u32 i;
>
> - for (i = irq_base; i < irq_base + NUM_EMMA2RH_IRQ_GPIO; i++) -
> set_irq_chip(i, &emma2rh_gpio_irq_controller); - -
> emma2rh_gpio_irq_base = irq_base; + for (i = 0; i <
> NUM_EMMA2RH_IRQ_GPIO; i++) +
> set_irq_chip(EMMA2RH_GPIO_IRQ_BASE + i, +
> &emma2rh_gpio_irq_controller); }
>
> void ll_emma2rh_gpio_irq_enable(int irq)
>
- --
_______________________________________
Mr Markus Gothe
Software Engineer
Phone: +46 (0)13 21 81 20 (ext. 1046)
Fax: +46 (0)13 21 21 15
Mobile: +46 (0)70 348 44 35
Diskettgatan 11, SE-583 35 Linköping, Sweden
www.27m.com
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