Linux GPIO subsystem development
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From: Peter Rosin <peda@axentia.se>
To: linux-kernel@vger.kernel.org
Cc: Peter Rosin <peda@axentia.se>,
	Linus Walleij <linus.walleij@linaro.org>,
	Andrew Jeffery <andrew@aj.id.au>,
	Charles Keepax <ckeepax@opensource.cirrus.com>,
	linux-gpio@vger.kernel.org
Subject: [PATCH 2/3] pinctrl: sx150x: register pinctrl before adding the gpiochip
Date: Wed, 17 Jan 2018 14:34:22 +0100	[thread overview]
Message-ID: <20180117133423.4482-3-peda@axentia.se> (raw)
In-Reply-To: <20180117133423.4482-1-peda@axentia.se>

Various gpiolib activity depend on the pinctrl to be up and kicking.
Therefore, register the pinctrl before adding a gpiochip.

Suggested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Peter Rosin <peda@axentia.se>
---
 drivers/pinctrl/pinctrl-sx150x.c | 35 +++++++++++++++++++++--------------
 1 file changed, 21 insertions(+), 14 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-sx150x.c b/drivers/pinctrl/pinctrl-sx150x.c
index f926ba044577..049dd15e04ef 100644
--- a/drivers/pinctrl/pinctrl-sx150x.c
+++ b/drivers/pinctrl/pinctrl-sx150x.c
@@ -1144,6 +1144,27 @@ static int sx150x_probe(struct i2c_client *client,
 	if (ret)
 		return ret;
 
+	/* Pinctrl_desc */
+	pctl->pinctrl_desc.name = "sx150x-pinctrl";
+	pctl->pinctrl_desc.pctlops = &sx150x_pinctrl_ops;
+	pctl->pinctrl_desc.confops = &sx150x_pinconf_ops;
+	pctl->pinctrl_desc.pins = pctl->data->pins;
+	pctl->pinctrl_desc.npins = pctl->data->npins;
+	pctl->pinctrl_desc.owner = THIS_MODULE;
+
+	ret = devm_pinctrl_register_and_init(dev, &pctl->pinctrl_desc,
+					     pctl, &pctl->pctldev);
+	if (ret) {
+		dev_err(dev, "Failed to register pinctrl device\n");
+		return ret;
+	}
+
+	ret = pinctrl_enable(pctl->pctldev);
+	if (ret) {
+		dev_err(dev, "Failed to enable pinctrl device\n");
+		return ret;
+	}
+
 	/* Register GPIO controller */
 	pctl->gpio.label = devm_kstrdup(dev, client->name, GFP_KERNEL);
 	pctl->gpio.base = -1;
@@ -1217,20 +1238,6 @@ static int sx150x_probe(struct i2c_client *client,
 					    client->irq);
 	}
 
-	/* Pinctrl_desc */
-	pctl->pinctrl_desc.name = "sx150x-pinctrl";
-	pctl->pinctrl_desc.pctlops = &sx150x_pinctrl_ops;
-	pctl->pinctrl_desc.confops = &sx150x_pinconf_ops;
-	pctl->pinctrl_desc.pins = pctl->data->pins;
-	pctl->pinctrl_desc.npins = pctl->data->npins;
-	pctl->pinctrl_desc.owner = THIS_MODULE;
-
-	pctl->pctldev = devm_pinctrl_register(dev, &pctl->pinctrl_desc, pctl);
-	if (IS_ERR(pctl->pctldev)) {
-		dev_err(dev, "Failed to register pinctrl device\n");
-		return PTR_ERR(pctl->pctldev);
-	}
-
 	return 0;
 }
 
-- 
2.11.0


  parent reply	other threads:[~2018-01-17 13:34 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-01-16 21:47 [REGRESSION] mux/gpio.c is not able to get any gpio pins Peter Rosin
2018-01-16 23:18 ` Linus Walleij
2018-01-16 23:57   ` Peter Rosin
2018-01-17  9:35     ` Linus Walleij
2018-01-17 10:39       ` Peter Rosin
2018-01-17 13:27         ` Linus Walleij
2018-01-17 13:34           ` [PATCH 0/3] pinctrl: sx150x: fixes for the probe Peter Rosin
2018-01-17 13:34             ` [PATCH 1/3] pinctrl: sx150x: unregister the pinctrl on release Peter Rosin
2018-01-18  7:53               ` Linus Walleij
2018-01-17 13:34             ` Peter Rosin [this message]
2018-01-17 13:34             ` [PATCH 3/3] pinctrl: sx150x: add a static gpio/pinctrl pin range mapping Peter Rosin
2018-01-17 15:05               ` Andrew Jeffery
2018-01-17 15:27                 ` Peter Rosin
2018-01-18  7:58               ` Linus Walleij
2018-01-18  8:19                 ` Peter Rosin
2018-01-18 10:03                   ` Linus Walleij

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