diff options
| author | Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> | 2014-02-17 14:27:49 +0400 |
|---|---|---|
| committer | Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> | 2014-04-16 14:03:25 +0400 |
| commit | 276bee05d8b72e98d530b55161e0a2131da99f58 (patch) | |
| tree | aa0e17853a543a9df4cafebcda4aa93d1f51afaf /drivers/clocksource/sh_mtu2.c | |
| parent | 13931f8065fabff117828999e007f62a5cabea34 (diff) | |
| download | linux-276bee05d8b72e98d530b55161e0a2131da99f58.tar.xz | |
clocksource: sh_mtu2: Use request_irq() instead of setup_irq()
The driver claims it needs to register an interrupt handler too early
for request_irq(). This might have been true in the past, but the only
meaningful difference between request_irq() and setup_irq() today is an
additional kzalloc() call in request_irq(). As the driver calls
kmalloc() itself we know that the slab allocator is available, we can
thus switch to request_irq().
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Tested-by: Wolfram Sang <wsa@sang-engineering.com>
Diffstat (limited to 'drivers/clocksource/sh_mtu2.c')
| -rw-r--r-- | drivers/clocksource/sh_mtu2.c | 22 |
1 files changed, 8 insertions, 14 deletions
diff --git a/drivers/clocksource/sh_mtu2.c b/drivers/clocksource/sh_mtu2.c index e30d76e0a6fa..77992e081205 100644 --- a/drivers/clocksource/sh_mtu2.c +++ b/drivers/clocksource/sh_mtu2.c @@ -37,7 +37,7 @@ struct sh_mtu2_priv { void __iomem *mapbase; struct clk *clk; - struct irqaction irqaction; + int irq; struct platform_device *pdev; unsigned long rate; unsigned long periodic; @@ -244,10 +244,11 @@ static void sh_mtu2_register_clockevent(struct sh_mtu2_priv *p, dev_info(&p->pdev->dev, "used for clock events\n"); clockevents_register_device(ced); - ret = setup_irq(p->irqaction.irq, &p->irqaction); + ret = request_irq(p->irq, sh_mtu2_interrupt, + IRQF_TIMER | IRQF_IRQPOLL | IRQF_NOBALANCING, + dev_name(&p->pdev->dev), p); if (ret) { - dev_err(&p->pdev->dev, "failed to request irq %d\n", - p->irqaction.irq); + dev_err(&p->pdev->dev, "failed to request irq %d\n", p->irq); return; } } @@ -265,7 +266,7 @@ static int sh_mtu2_setup(struct sh_mtu2_priv *p, struct platform_device *pdev) { struct sh_timer_config *cfg = pdev->dev.platform_data; struct resource *res; - int irq, ret; + int ret; ret = -ENXIO; memset(p, 0, sizeof(*p)); @@ -284,8 +285,8 @@ static int sh_mtu2_setup(struct sh_mtu2_priv *p, struct platform_device *pdev) goto err0; } - irq = platform_get_irq(p->pdev, 0); - if (irq < 0) { + p->irq = platform_get_irq(p->pdev, 0); + if (p->irq < 0) { dev_err(&p->pdev->dev, "failed to get irq\n"); goto err0; } @@ -297,13 +298,6 @@ static int sh_mtu2_setup(struct sh_mtu2_priv *p, struct platform_device *pdev) goto err0; } - /* setup data for setup_irq() (too early for request_irq()) */ - p->irqaction.name = dev_name(&p->pdev->dev); - p->irqaction.handler = sh_mtu2_interrupt; - p->irqaction.dev_id = p; - p->irqaction.irq = irq; - p->irqaction.flags = IRQF_TIMER | IRQF_IRQPOLL | IRQF_NOBALANCING; - /* get hold of clock */ p->clk = clk_get(&p->pdev->dev, "mtu2_fck"); if (IS_ERR(p->clk)) { |