pinctrl: sx150x: Add a static gpio/pinctrl pin range mapping

BugLink: http://bugs.launchpad.net/bugs/1751064
commit b930151e5b55a0e62a3aad06876de891ac980471 upstream.

Without such a range, gpiolib fails with -EPROBE_DEFER, pending the
addition of the range. So, without a range, gpiolib will keep
deferring indefinitely.

Fixes: 9e80f9064e73 ("pinctrl: Add SX150X GPIO Extender Pinctrl Driver")
Fixes: e10f72bf4b3e ("gpio: gpiolib: Generalise state persistence beyond sleep")
Suggested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>

diff --git a/drivers/pinctrl/pinctrl-sx150x.c b/drivers/pinctrl/pinctrl-sx150x.c
index 049dd15e04ef16535592272169854a232f0d9fe4..cbf58a10113df861fbc12335e68c2158c492a60b 100644 (file)
--- a/drivers/pinctrl/pinctrl-sx150x.c
+++ b/drivers/pinctrl/pinctrl-sx150x.c
@@ -1193,6 +1193,11 @@ static int sx150x_probe(struct i2c_client *client,
        if (ret)
                return ret;
 
+       ret = gpiochip_add_pin_range(&pctl->gpio, dev_name(dev),
+                                    0, 0, pctl->data->npins);
+       if (ret)
+               return ret;
+
        /* Add Interrupt support if an irq is specified */
        if (client->irq > 0) {
                pctl->irq_chip.name = devm_kstrdup(dev, client->name,