linux-kernel - [PATCH 3/3] pinctrl: sx150x: add a static gpio/pinctrl pin range mapping

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Date:   Wed, 17 Jan 2018 14:34:23 +0100
From:   Peter Rosin <peda@...ntia.se>
To:     linux-kernel@...r.kernel.org
Cc:     Peter Rosin <peda@...ntia.se>,
        Linus Walleij <linus.walleij@...aro.org>,
        Andrew Jeffery <andrew@...id.au>,
        Charles Keepax <ckeepax@...nsource.cirrus.com>,
        linux-gpio@...r.kernel.org
Subject: [PATCH 3/3] pinctrl: sx150x: add a static gpio/pinctrl pin range mapping

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: e10f72bf4b3e ("gpio: gpiolib: Generalise state persistence beyond sleep")
Suggested-by: Linus Walleij <linus.walleij@...aro.org>
Signed-off-by: Peter Rosin <peda@...ntia.se>
---
 drivers/pinctrl/pinctrl-sx150x.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/pinctrl/pinctrl-sx150x.c b/drivers/pinctrl/pinctrl-sx150x.c
index 049dd15e04ef..cbf58a10113d 100644
--- 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,
-- 
2.11.0