iio: dac: ltc2688: Use temporary variable for struct device

Use temporary variable for struct device to make code neater.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20220302153142.52743-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/iio/dac/ltc2688.c b/drivers/iio/dac/ltc2688.c
index e41861d..d249fa2 100644 (file)
--- a/drivers/iio/dac/ltc2688.c
+++ b/drivers/iio/dac/ltc2688.c
@@ -703,21 +703,20 @@ static int ltc2688_tgp_clk_setup(struct ltc2688_state *st,
                                 struct ltc2688_chan *chan,
                                 struct fwnode_handle *node, int tgp)
 {
+       struct device *dev = &st->spi->dev;
        unsigned long rate;
        struct clk *clk;
        int ret, f;
 
-       clk = devm_get_clk_from_child(&st->spi->dev, to_of_node(node), NULL);
+       clk = devm_get_clk_from_child(dev, to_of_node(node), NULL);
        if (IS_ERR(clk))
-               return dev_err_probe(&st->spi->dev, PTR_ERR(clk),
-                                    "failed to get tgp clk.\n");
+               return dev_err_probe(dev, PTR_ERR(clk), "failed to get tgp clk.\n");
 
        ret = clk_prepare_enable(clk);
        if (ret)
-               return dev_err_probe(&st->spi->dev, ret,
-                                    "failed to enable tgp clk.\n");
+               return dev_err_probe(dev, ret, "failed to enable tgp clk.\n");
 
-       ret = devm_add_action_or_reset(&st->spi->dev, ltc2688_clk_disable, clk);
+       ret = devm_add_action_or_reset(dev, ltc2688_clk_disable, clk);
        if (ret)
                return ret;
 
@@ -858,6 +857,7 @@ static int ltc2688_channel_config(struct ltc2688_state *st)
 
 static int ltc2688_setup(struct ltc2688_state *st, struct regulator *vref)
 {
+       struct device *dev = &st->spi->dev;
        struct gpio_desc *gpio;
        int ret;
 
@@ -865,10 +865,9 @@ static int ltc2688_setup(struct ltc2688_state *st, struct regulator *vref)
         * If we have a reset pin, use that to reset the board, If not, use
         * the reset bit.
         */
-       gpio = devm_gpiod_get_optional(&st->spi->dev, "clr", GPIOD_OUT_HIGH);
+       gpio = devm_gpiod_get_optional(dev, "clr", GPIOD_OUT_HIGH);
        if (IS_ERR(gpio))
-               return dev_err_probe(&st->spi->dev, PTR_ERR(gpio),
-                                    "Failed to get reset gpio");
+               return dev_err_probe(dev, PTR_ERR(gpio), "Failed to get reset gpio");
        if (gpio) {
                usleep_range(1000, 1200);
                /* bring device out of reset */
@@ -887,7 +886,7 @@ static int ltc2688_setup(struct ltc2688_state *st, struct regulator *vref)
         * Duplicate the default channel configuration as it can change during
         * @ltc2688_channel_config()
         */
-       st->iio_chan = devm_kmemdup(&st->spi->dev, ltc2688_channels,
+       st->iio_chan = devm_kmemdup(dev, ltc2688_channels,
                                    sizeof(ltc2688_channels), GFP_KERNEL);
        if (!st->iio_chan)
                return -ENOMEM;