diff options
| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2013-11-04 09:17:02 +0100 |
|---|---|---|
| committer | Shawn Guo <shawn.guo@linaro.org> | 2013-12-09 13:18:25 +0800 |
| commit | 81efe0fc67c72ca13eb402cc6de5c79f0f258932 (patch) | |
| tree | a18c3792b71dbb2f19b156b10a236cf573242536 /arch/arm/mach-imx/avic.c | |
| parent | 5a269d22848777ad088e2d7883861cedc64972cf (diff) | |
| download | linux-81efe0fc67c72ca13eb402cc6de5c79f0f258932.tar.bz2 | |
ARM: imx: drop support for irq priorisation
The code for irq priorisation support doesn't have any in-tree users and
the Kconfig description does wrong promises because nowadays irq
handlers are called with irqs disabled, so no high prioritized irq can
interrupt a lower prioritized handler.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Diffstat (limited to 'arch/arm/mach-imx/avic.c')
| -rw-r--r-- | arch/arm/mach-imx/avic.c | 25 |
1 files changed, 0 insertions, 25 deletions
diff --git a/arch/arm/mach-imx/avic.c b/arch/arm/mach-imx/avic.c index e163ec7a8441..8d1df2e4b7ac 100644 --- a/arch/arm/mach-imx/avic.c +++ b/arch/arm/mach-imx/avic.c @@ -54,28 +54,6 @@ static void __iomem *avic_base; static struct irq_domain *domain; -#ifdef CONFIG_MXC_IRQ_PRIOR -static int avic_irq_set_priority(unsigned char irq, unsigned char prio) -{ - struct irq_data *d = irq_get_irq_data(irq); - unsigned int temp; - unsigned int mask = 0x0F << irq % 8 * 4; - - irq = d->hwirq; - - if (irq >= AVIC_NUM_IRQS) - return -EINVAL; - - temp = __raw_readl(avic_base + AVIC_NIPRIORITY(irq / 8)); - temp &= ~mask; - temp |= prio & mask; - - __raw_writel(temp, avic_base + AVIC_NIPRIORITY(irq / 8)); - - return 0; -} -#endif - #ifdef CONFIG_FIQ static int avic_set_irq_fiq(unsigned int irq, unsigned int type) { @@ -102,9 +80,6 @@ static int avic_set_irq_fiq(unsigned int irq, unsigned int type) static struct mxc_extra_irq avic_extra_irq = { -#ifdef CONFIG_MXC_IRQ_PRIOR - .set_priority = avic_irq_set_priority, -#endif #ifdef CONFIG_FIQ .set_irq_fiq = avic_set_irq_fiq, #endif |