| Message ID | 20190809132649.25176-1-linus.walleij@linaro.org |
|---|---|
| State | New |
| Headers | show |
| Series | gpio: zynq: Pass irqchip when adding gpiochip | expand |
On 09. 08. 19 15:26, Linus Walleij wrote: > We need to convert all old gpio irqchips to pass the irqchip > setup along when adding the gpio_chip. For more info see > drivers/gpio/TODO. > > For chained irqchips this is a pretty straight-forward > conversion. > > Cc: Michal Simek <michal.simek@xilinx.com> > Cc: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com> > Cc: Thierry Reding <treding@nvidia.com> > Signed-off-by: Linus Walleij <linus.walleij@linaro.org> > --- > drivers/gpio/gpio-zynq.c | 37 +++++++++++++++++++++---------------- > 1 file changed, 21 insertions(+), 16 deletions(-) > > diff --git a/drivers/gpio/gpio-zynq.c b/drivers/gpio/gpio-zynq.c > index 86b0bd256c13..cd475ff4bcad 100644 > --- a/drivers/gpio/gpio-zynq.c > +++ b/drivers/gpio/gpio-zynq.c > @@ -830,6 +830,7 @@ static int zynq_gpio_probe(struct platform_device *pdev) > int ret, bank_num; > struct zynq_gpio *gpio; > struct gpio_chip *chip; > + struct gpio_irq_chip *girq; > const struct of_device_id *match; > > gpio = devm_kzalloc(&pdev->dev, sizeof(*gpio), GFP_KERNEL); > @@ -885,34 +886,38 @@ static int zynq_gpio_probe(struct platform_device *pdev) > if (ret < 0) > goto err_pm_dis; > > - /* report a bug if gpio chip registration fails */ > - ret = gpiochip_add_data(chip, gpio); > - if (ret) { > - dev_err(&pdev->dev, "Failed to add gpio chip\n"); > - goto err_pm_put; > - } > - > /* disable interrupts for all banks */ > for (bank_num = 0; bank_num < gpio->p_data->max_bank; bank_num++) > writel_relaxed(ZYNQ_GPIO_IXR_DISABLE_ALL, gpio->base_addr + > ZYNQ_GPIO_INTDIS_OFFSET(bank_num)); > > - ret = gpiochip_irqchip_add(chip, &zynq_gpio_edge_irqchip, 0, > - handle_level_irq, IRQ_TYPE_NONE); > - if (ret) { > - dev_err(&pdev->dev, "Failed to add irq chip\n"); > - goto err_rm_gpiochip; > + /* Set up the GPIO irqchip */ > + girq = &chip->irq; > + girq->chip = &zynq_gpio_edge_irqchip; > + girq->parent_handler = zynq_gpio_irqhandler; > + girq->num_parents = 1; > + girq->parents = devm_kcalloc(&pdev->dev, 1, > + sizeof(*girq->parents), > + GFP_KERNEL); > + if (!girq->parents) { > + ret = -ENOMEM; > + goto err_pm_put; > } > + girq->parents[0] = gpio->irq; > + girq->default_type = IRQ_TYPE_NONE; > + girq->handler = handle_level_irq; > > - gpiochip_set_chained_irqchip(chip, &zynq_gpio_edge_irqchip, gpio->irq, > - zynq_gpio_irqhandler); > + /* report a bug if gpio chip registration fails */ > + ret = gpiochip_add_data(chip, gpio); > + if (ret) { > + dev_err(&pdev->dev, "Failed to add gpio chip\n"); > + goto err_pm_put; > + } > > pm_runtime_put(&pdev->dev); > > return 0; > > -err_rm_gpiochip: > - gpiochip_remove(chip); > err_pm_put: > pm_runtime_put(&pdev->dev); > err_pm_dis: > Shubhrajyoti: Please retest it. Thanks, Michal
diff --git a/drivers/gpio/gpio-zynq.c b/drivers/gpio/gpio-zynq.c index 86b0bd256c13..cd475ff4bcad 100644 --- a/drivers/gpio/gpio-zynq.c +++ b/drivers/gpio/gpio-zynq.c @@ -830,6 +830,7 @@ static int zynq_gpio_probe(struct platform_device *pdev) int ret, bank_num; struct zynq_gpio *gpio; struct gpio_chip *chip; + struct gpio_irq_chip *girq; const struct of_device_id *match; gpio = devm_kzalloc(&pdev->dev, sizeof(*gpio), GFP_KERNEL); @@ -885,34 +886,38 @@ static int zynq_gpio_probe(struct platform_device *pdev) if (ret < 0) goto err_pm_dis; - /* report a bug if gpio chip registration fails */ - ret = gpiochip_add_data(chip, gpio); - if (ret) { - dev_err(&pdev->dev, "Failed to add gpio chip\n"); - goto err_pm_put; - } - /* disable interrupts for all banks */ for (bank_num = 0; bank_num < gpio->p_data->max_bank; bank_num++) writel_relaxed(ZYNQ_GPIO_IXR_DISABLE_ALL, gpio->base_addr + ZYNQ_GPIO_INTDIS_OFFSET(bank_num)); - ret = gpiochip_irqchip_add(chip, &zynq_gpio_edge_irqchip, 0, - handle_level_irq, IRQ_TYPE_NONE); - if (ret) { - dev_err(&pdev->dev, "Failed to add irq chip\n"); - goto err_rm_gpiochip; + /* Set up the GPIO irqchip */ + girq = &chip->irq; + girq->chip = &zynq_gpio_edge_irqchip; + girq->parent_handler = zynq_gpio_irqhandler; + girq->num_parents = 1; + girq->parents = devm_kcalloc(&pdev->dev, 1, + sizeof(*girq->parents), + GFP_KERNEL); + if (!girq->parents) { + ret = -ENOMEM; + goto err_pm_put; } + girq->parents[0] = gpio->irq; + girq->default_type = IRQ_TYPE_NONE; + girq->handler = handle_level_irq; - gpiochip_set_chained_irqchip(chip, &zynq_gpio_edge_irqchip, gpio->irq, - zynq_gpio_irqhandler); + /* report a bug if gpio chip registration fails */ + ret = gpiochip_add_data(chip, gpio); + if (ret) { + dev_err(&pdev->dev, "Failed to add gpio chip\n"); + goto err_pm_put; + } pm_runtime_put(&pdev->dev); return 0; -err_rm_gpiochip: - gpiochip_remove(chip); err_pm_put: pm_runtime_put(&pdev->dev); err_pm_dis:
We need to convert all old gpio irqchips to pass the irqchip setup along when adding the gpio_chip. For more info see drivers/gpio/TODO. For chained irqchips this is a pretty straight-forward conversion. Cc: Michal Simek <michal.simek@xilinx.com> Cc: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com> Cc: Thierry Reding <treding@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> --- drivers/gpio/gpio-zynq.c | 37 +++++++++++++++++++++---------------- 1 file changed, 21 insertions(+), 16 deletions(-)