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>hifive-unleashed-5.1
parent
13931f8065
commit
276bee05d8
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@ -37,7 +37,7 @@
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struct sh_mtu2_priv {
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struct sh_mtu2_priv {
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void __iomem *mapbase;
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void __iomem *mapbase;
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struct clk *clk;
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struct clk *clk;
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struct irqaction irqaction;
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int irq;
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struct platform_device *pdev;
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struct platform_device *pdev;
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unsigned long rate;
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unsigned long rate;
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unsigned long periodic;
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unsigned long periodic;
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@ -244,10 +244,11 @@ static void sh_mtu2_register_clockevent(struct sh_mtu2_priv *p,
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dev_info(&p->pdev->dev, "used for clock events\n");
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dev_info(&p->pdev->dev, "used for clock events\n");
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clockevents_register_device(ced);
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clockevents_register_device(ced);
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ret = setup_irq(p->irqaction.irq, &p->irqaction);
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ret = request_irq(p->irq, sh_mtu2_interrupt,
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IRQF_TIMER | IRQF_IRQPOLL | IRQF_NOBALANCING,
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dev_name(&p->pdev->dev), p);
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if (ret) {
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if (ret) {
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dev_err(&p->pdev->dev, "failed to request irq %d\n",
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dev_err(&p->pdev->dev, "failed to request irq %d\n", p->irq);
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p->irqaction.irq);
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return;
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return;
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}
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}
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}
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}
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@ -265,7 +266,7 @@ static int sh_mtu2_setup(struct sh_mtu2_priv *p, struct platform_device *pdev)
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{
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{
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struct sh_timer_config *cfg = pdev->dev.platform_data;
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struct sh_timer_config *cfg = pdev->dev.platform_data;
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struct resource *res;
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struct resource *res;
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int irq, ret;
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int ret;
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ret = -ENXIO;
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ret = -ENXIO;
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memset(p, 0, sizeof(*p));
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memset(p, 0, sizeof(*p));
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@ -284,8 +285,8 @@ static int sh_mtu2_setup(struct sh_mtu2_priv *p, struct platform_device *pdev)
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goto err0;
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goto err0;
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}
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}
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irq = platform_get_irq(p->pdev, 0);
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p->irq = platform_get_irq(p->pdev, 0);
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if (irq < 0) {
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if (p->irq < 0) {
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dev_err(&p->pdev->dev, "failed to get irq\n");
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dev_err(&p->pdev->dev, "failed to get irq\n");
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goto err0;
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goto err0;
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}
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}
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@ -297,13 +298,6 @@ static int sh_mtu2_setup(struct sh_mtu2_priv *p, struct platform_device *pdev)
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goto err0;
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goto err0;
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}
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}
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/* setup data for setup_irq() (too early for request_irq()) */
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p->irqaction.name = dev_name(&p->pdev->dev);
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p->irqaction.handler = sh_mtu2_interrupt;
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p->irqaction.dev_id = p;
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p->irqaction.irq = irq;
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p->irqaction.flags = IRQF_TIMER | IRQF_IRQPOLL | IRQF_NOBALANCING;
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/* get hold of clock */
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/* get hold of clock */
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p->clk = clk_get(&p->pdev->dev, "mtu2_fck");
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p->clk = clk_get(&p->pdev->dev, "mtu2_fck");
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if (IS_ERR(p->clk)) {
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if (IS_ERR(p->clk)) {
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