From: Ahmad Fatoum <[email protected]>

bcm2711-rpi-4-b.dts lists 58 gpio names and the linux driver also uses
58 GPIOs for bcm2711.

Signed-off-by: Uwe Kleine-König <[email protected]>
---
 drivers/pinctrl/pinctrl-bcm2835.c | 22 +++++++++++++++++++++-
 1 file changed, 21 insertions(+), 1 deletion(-)

diff --git a/drivers/pinctrl/pinctrl-bcm2835.c 
b/drivers/pinctrl/pinctrl-bcm2835.c
index 38c788c82945..684ead2f8e5e 100644
--- a/drivers/pinctrl/pinctrl-bcm2835.c
+++ b/drivers/pinctrl/pinctrl-bcm2835.c
@@ -52,6 +52,10 @@ struct bcm2835_gpio_chip {
        struct pinctrl_device pctl;
 };
 
+struct plat_data {
+       unsigned ngpios;
+};
+
 static int bcm2835_set_function(struct gpio_chip *chip, unsigned gpio, int 
function)
 {
        struct bcm2835_gpio_chip *bcmgpio = container_of(chip, struct 
bcm2835_gpio_chip, chip);
@@ -149,10 +153,13 @@ static struct pinctrl_ops bcm2835_pinctrl_ops = {
 
 static int bcm2835_gpio_probe(struct device_d *dev)
 {
+       const struct plat_data *plat_data;
        struct resource *iores;
        struct bcm2835_gpio_chip *bcmgpio;
        int ret;
 
+       plat_data = device_get_match_data(dev);
+
        bcmgpio = xzalloc(sizeof(*bcmgpio));
        iores = dev_request_mem_resource(dev, 0);
        if (IS_ERR(iores))
@@ -160,7 +167,8 @@ static int bcm2835_gpio_probe(struct device_d *dev)
        bcmgpio->base = IOMEM(iores->start);
        bcmgpio->chip.ops = &bcm2835_gpio_ops;
        bcmgpio->chip.base = 0;
-       bcmgpio->chip.ngpio = 54;
+       bcmgpio->chip.ngpio = plat_data->ngpios;
+
        bcmgpio->chip.dev = dev;
        bcmgpio->pctl.ops = &bcm2835_pinctrl_ops;
        bcmgpio->pctl.dev = dev;
@@ -191,9 +199,21 @@ err:
        return ret;
 }
 
+static const struct plat_data bcm2835_plat_data = {
+       .ngpios = 54,
+};
+
+static const struct plat_data bcm2711_plat_data = {
+       .ngpios = 58,
+};
+
 static __maybe_unused struct of_device_id bcm2835_gpio_dt_ids[] = {
        {
                .compatible = "brcm,bcm2835-gpio",
+               .data = &bcm2835_plat_data,
+       }, {
+               .compatible = "brcm,bcm2711-gpio",
+               .data = &bcm2711_plat_data,
        }, {
                /* sentinel */
        }
-- 
2.30.2


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