gpio: mmio: add MyBook Live GPIO support

This patch adds support for the Western Digital's
MyBook Live memory-mapped GPIO controllers.

The GPIOs will be supported by the generic driver
for memory-mapped GPIO controllers.

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Acked-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/drivers/gpio/gpio-mmio.c b/drivers/gpio/gpio-mmio.c
index af583bee86d049d9da1db0a6cdcc30ff68ac6acd..6ec144baeb11f1d124586b53ba353db7da7adab9 100644 (file)
--- a/drivers/gpio/gpio-mmio.c
+++ b/drivers/gpio/gpio-mmio.c
@@ -573,6 +573,7 @@ static void __iomem *bgpio_map(struct platform_device *pdev,
 
 #ifdef CONFIG_OF
 static const struct of_device_id bgpio_of_match[] = {
+       { .compatible = "wd,mbl-gpio" },
        { }
 };
 MODULE_DEVICE_TABLE(of, bgpio_of_match);
@@ -592,6 +593,9 @@ static struct bgpio_pdata *bgpio_parse_dt(struct platform_device *pdev,
 
        pdata->base = -1;
 
+       if (of_property_read_bool(pdev->dev.of_node, "no-output"))
+               *flags |= BGPIOF_NO_OUTPUT;
+
        return pdata;
 }
 #else