gpio: mt7621: support gpio-line-names property

This driver uses multiple gpiochip banks per device. To support
'gpio-line-names' along the banks 'offset' for each bank must be
set explicitly.

Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>

diff --git a/drivers/gpio/gpio-mt7621.c b/drivers/gpio/gpio-mt7621.c
index 82fb20dca53af5cb5bc18c573f9732399047f389..5854a9343491ac53e3b39adb55331d7f696923d0 100644 (file)
--- a/drivers/gpio/gpio-mt7621.c
+++ b/drivers/gpio/gpio-mt7621.c
@@ -241,6 +241,7 @@ mediatek_gpio_bank_probe(struct device *dev,
        if (!rg->chip.label)
                return -ENOMEM;
 
+       rg->chip.offset = bank * MTK_BANK_WIDTH;
        rg->irq_chip.name = dev_name(dev);
        rg->irq_chip.parent_device = dev;
        rg->irq_chip.irq_unmask = mediatek_gpio_irq_unmask;