[PATCH 4/6] i2c: pca-platform: unconditionally use devm_gpiod_get_optional

[Chris Packham]

Allow for the reset-gpios property to be defined in the device tree
or via a GPIO lookup table.

Signed-off-by: Chris Packham <chris.pack...@alliedtelesis.co.nz>
---
 drivers/i2c/busses/i2c-pca-platform.c | 21 ++++-----------------
 1 file changed, 4 insertions(+), 17 deletions(-)

diff --git a/drivers/i2c/busses/i2c-pca-platform.c 
b/drivers/i2c/busses/i2c-pca-platform.c
index 853a2abedb05..1e3c247de8f8 100644
--- a/drivers/i2c/busses/i2c-pca-platform.c
+++ b/drivers/i2c/busses/i2c-pca-platform.c
@@ -176,32 +176,19 @@ static int i2c_pca_pf_probe(struct platform_device *pdev)
        if (platform_data) {
                i2c->adap.timeout = platform_data->timeout;
                i2c->algo_data.i2c_clock = platform_data->i2c_clock_speed;
-               if (gpio_is_valid(platform_data->gpio)) {
-                       ret = devm_gpio_request_one(&pdev->dev,
-                                                   platform_data->gpio,
-                                                   GPIOF_ACTIVE_LOW,
-                                                   i2c->adap.name);
-                       if (ret == 0) {
-                               i2c->gpio = gpio_to_desc(platform_data->gpio);
-                               gpiod_direction_output(i2c->gpio, 0);
-                       } else {
-                               dev_warn(&pdev->dev, "Registering gpio 
failed!\n");
-                               i2c->gpio = NULL;
-                       }
-               }
        } else if (np) {
                i2c->adap.timeout = HZ;
-               i2c->gpio = devm_gpiod_get_optional(&pdev->dev, "reset-gpios", 
GPIOD_OUT_LOW);
-               if (IS_ERR(i2c->gpio))
-                       return PTR_ERR(i2c->gpio);
                of_property_read_u32_index(np, "clock-frequency", 0,
                                           &i2c->algo_data.i2c_clock);
        } else {
                i2c->adap.timeout = HZ;
                i2c->algo_data.i2c_clock = 59000;
-               i2c->gpio = NULL;
        }
 
+       i2c->gpio = devm_gpiod_get_optional(&pdev->dev, "reset-gpios", 
GPIOD_OUT_LOW);
+       if (IS_ERR(i2c->gpio))
+               return PTR_ERR(i2c->gpio);
+
        i2c->algo_data.data = i2c;
        i2c->algo_data.wait_for_completion = i2c_pca_pf_waitforcompletion;
        if (i2c->gpio)
-- 
2.13.0