blob: 72095e5e9f23b331aca34032460b5f849227d3d6 [file] [log] [blame]
From 3eee2e832d3ec882cfcf5f06b161a462c1b9d8e3 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Sun, 10 Sep 2017 23:15:35 +0200
Subject: [PATCH 0397/1795] i2c: gpio: Local vars in probe
By creating local variables for *dev and *np, the code become
much easier to read, in my opinion.
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
(cherry picked from commit b9ab0517efc0111b516878ab872e2b3dd7bb40a9)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
drivers/i2c/busses/i2c-gpio.c | 27 ++++++++++++++-------------
1 file changed, 14 insertions(+), 13 deletions(-)
diff --git a/drivers/i2c/busses/i2c-gpio.c b/drivers/i2c/busses/i2c-gpio.c
index 97b9c29e9429..a702e493275c 100644
--- a/drivers/i2c/busses/i2c-gpio.c
+++ b/drivers/i2c/busses/i2c-gpio.c
@@ -88,10 +88,12 @@ static int i2c_gpio_probe(struct platform_device *pdev)
struct i2c_gpio_platform_data *pdata;
struct i2c_algo_bit_data *bit_data;
struct i2c_adapter *adap;
+ struct device *dev = &pdev->dev;
+ struct device_node *np = dev->of_node;
enum gpiod_flags gflags;
int ret;
- priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
+ priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
@@ -99,16 +101,15 @@ static int i2c_gpio_probe(struct platform_device *pdev)
bit_data = &priv->bit_data;
pdata = &priv->pdata;
- if (pdev->dev.of_node) {
- of_i2c_gpio_get_props(pdev->dev.of_node, pdata);
+ if (np) {
+ of_i2c_gpio_get_props(np, pdata);
} else {
/*
* If all platform data settings are zero it is OK
* to not provide any platform data from the board.
*/
- if (dev_get_platdata(&pdev->dev))
- memcpy(pdata, dev_get_platdata(&pdev->dev),
- sizeof(*pdata));
+ if (dev_get_platdata(dev))
+ memcpy(pdata, dev_get_platdata(dev), sizeof(*pdata));
}
/*
@@ -123,7 +124,7 @@ static int i2c_gpio_probe(struct platform_device *pdev)
gflags = GPIOD_OUT_HIGH;
else
gflags = GPIOD_OUT_HIGH_OPEN_DRAIN;
- priv->sda = devm_gpiod_get_index(&pdev->dev, NULL, 0, gflags);
+ priv->sda = devm_gpiod_get_index(dev, NULL, 0, gflags);
if (IS_ERR(priv->sda)) {
ret = PTR_ERR(priv->sda);
/* FIXME: hack in the old code, is this really necessary? */
@@ -142,7 +143,7 @@ static int i2c_gpio_probe(struct platform_device *pdev)
gflags = GPIOD_OUT_LOW;
else
gflags = GPIOD_OUT_LOW_OPEN_DRAIN;
- priv->scl = devm_gpiod_get_index(&pdev->dev, NULL, 1, gflags);
+ priv->scl = devm_gpiod_get_index(dev, NULL, 1, gflags);
if (IS_ERR(priv->scl)) {
ret = PTR_ERR(priv->scl);
/* FIXME: hack in the old code, is this really necessary? */
@@ -173,15 +174,15 @@ static int i2c_gpio_probe(struct platform_device *pdev)
bit_data->data = priv;
adap->owner = THIS_MODULE;
- if (pdev->dev.of_node)
- strlcpy(adap->name, dev_name(&pdev->dev), sizeof(adap->name));
+ if (np)
+ strlcpy(adap->name, dev_name(dev), sizeof(adap->name));
else
snprintf(adap->name, sizeof(adap->name), "i2c-gpio%d", pdev->id);
adap->algo_data = bit_data;
adap->class = I2C_CLASS_HWMON | I2C_CLASS_SPD;
- adap->dev.parent = &pdev->dev;
- adap->dev.of_node = pdev->dev.of_node;
+ adap->dev.parent = dev;
+ adap->dev.of_node = np;
adap->nr = pdev->id;
ret = i2c_bit_add_numbered_bus(adap);
@@ -195,7 +196,7 @@ static int i2c_gpio_probe(struct platform_device *pdev)
* get accessors to get the actual name of the GPIO line,
* from the descriptor, then provide that instead.
*/
- dev_info(&pdev->dev, "using lines %u (SDA) and %u (SCL%s)\n",
+ dev_info(dev, "using lines %u (SDA) and %u (SCL%s)\n",
desc_to_gpio(priv->sda), desc_to_gpio(priv->scl),
pdata->scl_is_output_only
? ", no clock stretching" : "");
--
2.19.0