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irqchip: bcm7120-l2: Use gc->mask_cache to simplify suspend/resume functions 

The cached value already incorporates irq_fwd_mask, and was saved the
last time an IRQ was enabled/disabled.

Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lkml.kernel.org/r/1415342669-30640-11-git-send-email-cernekee@gmail.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
This commit is contained in:
Kevin Cernekee 2014-11-06 22:44:25 -08:00 committed by Jason Cooper
parent 0b5cb32ca5
commit 05b8ce8260
1 changed files with 3 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
drivers/irqchip/irq-bcm7120-l2.c
View File

@ -37,7 +37,6 @@ struct bcm7120_l2_intc_data {
bool can_wake;
u32 irq_fwd_mask;
u32 irq_map_mask;
u32 saved_mask;
};
static void bcm7120_l2_intc_irq_handle(unsigned int irq, struct irq_desc *desc)
@ -62,14 +61,11 @@ static void bcm7120_l2_intc_suspend(struct irq_data *d)
{
struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
struct bcm7120_l2_intc_data *b = gc->private;
u32 reg;
irq_gc_lock(gc);
/* Save the current mask and the interrupt forward mask */
b->saved_mask = __raw_readl(b->base + IRQEN) | b->irq_fwd_mask;
if (b->can_wake) {
reg = b->saved_mask | gc->wake_active;
__raw_writel(reg, b->base + IRQEN);
__raw_writel(gc->mask_cache | gc->wake_active,
b->base + IRQEN);
}
irq_gc_unlock(gc);
}
@ -77,11 +73,10 @@ static void bcm7120_l2_intc_suspend(struct irq_data *d)
static void bcm7120_l2_intc_resume(struct irq_data *d)
{
struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
struct bcm7120_l2_intc_data *b = gc->private;
/* Restore the saved mask */
irq_gc_lock(gc);
__raw_writel(b->saved_mask, b->base + IRQEN);
__raw_writel(gc->mask_cache, b->base + IRQEN);
irq_gc_unlock(gc);
}