diff options
| author | Kamlakant Patel <kamlakant.patel@broadcom.com> | 2016-03-24 15:01:40 +0530 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2016-03-31 10:44:08 +0200 |
| commit | dd98756d78153dbb43685f0f0e618dda235aee00 (patch) | |
| tree | 844d2f29936ca3c6230179a17c682ab5e8c18780 /drivers/gpio | |
| parent | 16fe1ad289019d78a8f8fdb65f08d298ee921cb3 (diff) | |
gpio: xlp: Add GPIO driver support for Broadcom Vulcan ARM64
- Add GPIO support for Broadcom Vulcan ARM64.
- Add depends on ARCH_VULCAN to Kconfig to enable gpio controller
driver for Broadcom Vulcan ARM64 SoCs.
Signed-off-by: Kamlakant Patel <kamlakant.patel@broadcom.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio')
| -rw-r--r-- | drivers/gpio/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/gpio/gpio-xlp.c | 25 |
2 files changed, 21 insertions, 6 deletions
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig index 6d6015f7aeed..78898367b34e 100644 --- a/drivers/gpio/Kconfig +++ b/drivers/gpio/Kconfig @@ -474,7 +474,7 @@ config GPIO_XILINX config GPIO_XLP tristate "Netlogic XLP GPIO support" - depends on CPU_XLP && OF_GPIO + depends on OF_GPIO && (CPU_XLP || ARCH_VULCAN || COMPILE_TEST) select GPIOLIB_IRQCHIP help This driver provides support for GPIO interface on Netlogic XLP MIPS64 diff --git a/drivers/gpio/gpio-xlp.c b/drivers/gpio/gpio-xlp.c index aa5813d2deb1..08897dc11915 100644 --- a/drivers/gpio/gpio-xlp.c +++ b/drivers/gpio/gpio-xlp.c @@ -85,7 +85,8 @@ enum { XLP_GPIO_VARIANT_XLP316, XLP_GPIO_VARIANT_XLP208, XLP_GPIO_VARIANT_XLP980, - XLP_GPIO_VARIANT_XLP532 + XLP_GPIO_VARIANT_XLP532, + GPIO_VARIANT_VULCAN }; struct xlp_gpio_priv { @@ -285,6 +286,10 @@ static const struct of_device_id xlp_gpio_of_ids[] = { .compatible = "netlogic,xlp532-gpio", .data = (void *)XLP_GPIO_VARIANT_XLP532, }, + { + .compatible = "brcm,vulcan-gpio", + .data = (void *)GPIO_VARIANT_VULCAN, + }, { /* sentinel */ }, }; MODULE_DEVICE_TABLE(of, xlp_gpio_of_ids); @@ -347,6 +352,7 @@ static int xlp_gpio_probe(struct platform_device *pdev) break; case XLP_GPIO_VARIANT_XLP980: case XLP_GPIO_VARIANT_XLP532: + case GPIO_VARIANT_VULCAN: priv->gpio_out_en = gpio_base + GPIO_9XX_OUTPUT_EN; priv->gpio_paddrv = gpio_base + GPIO_9XX_PADDRV; priv->gpio_intr_stat = gpio_base + GPIO_9XX_INT_STAT; @@ -354,7 +360,12 @@ static int xlp_gpio_probe(struct platform_device *pdev) priv->gpio_intr_pol = gpio_base + GPIO_9XX_INT_POL; priv->gpio_intr_en = gpio_base + GPIO_9XX_INT_EN00; - ngpio = (soc_type == XLP_GPIO_VARIANT_XLP980) ? 66 : 67; + if (soc_type == XLP_GPIO_VARIANT_XLP980) + ngpio = 66; + else if (soc_type == XLP_GPIO_VARIANT_XLP532) + ngpio = 67; + else + ngpio = 70; break; default: dev_err(&pdev->dev, "Unknown Processor type!\n"); @@ -377,10 +388,14 @@ static int xlp_gpio_probe(struct platform_device *pdev) gc->get = xlp_gpio_get; spin_lock_init(&priv->lock); - irq_base = irq_alloc_descs(-1, XLP_GPIO_IRQ_BASE, gc->ngpio, 0); - if (irq_base < 0) { + /* XLP has fixed IRQ range for GPIO interrupts */ + if (soc_type == GPIO_VARIANT_VULCAN) + irq_base = irq_alloc_descs(-1, 0, gc->ngpio, 0); + else + irq_base = irq_alloc_descs(-1, XLP_GPIO_IRQ_BASE, gc->ngpio, 0); + if (IS_ERR_VALUE(irq_base)) { dev_err(&pdev->dev, "Failed to allocate IRQ numbers\n"); - return -ENODEV; + return irq_base; } err = gpiochip_add_data(gc, priv); |