diff options
| author |   Chris Packham <chris.packham@alliedtelesis.co.nz> | 2017-07-05 22:13:56 +1200 |
|---|---|---|
| committer |   Wolfram Sang <wsa@the-dreams.de> | 2018-03-24 13:26:00 +0100 |
| commit | 06783261751a44c63680e94005a4763151bc1134 (patch) | |
| tree | fa95da73950f8814502e51274301cd3d78ce58bc /drivers/i2c | |
| parent | sh: sh7785lcr: add GPIO lookup table for i2c controller reset (diff) | |
| download | linux-dev-06783261751a44c63680e94005a4763151bc1134.tar.xz linux-dev-06783261751a44c63680e94005a4763151bc1134.zip | |
i2c: pca-platform: unconditionally use devm_gpiod_get_optional
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.packham@alliedtelesis.co.nz>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Diffstat (limited to 'drivers/i2c')
| -rw-r--r-- | drivers/i2c/busses/i2c-pca-platform.c | 21 |
1 files 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..b90193d09d4b 100644 --- a/drivers/i2c/busses/i2c-pca-platform.c +++ b/drivers/i2c/busses/i2c-pca-platform.c @@ -173,33 +173,20 @@ static int i2c_pca_pf_probe(struct platform_device *pdev) i2c->adap.dev.parent = &pdev->dev; i2c->adap.dev.of_node = np; + i2c->gpio = devm_gpiod_get_optional(&pdev->dev, "reset-gpios", GPIOD_OUT_LOW); + if (IS_ERR(i2c->gpio)) + return PTR_ERR(i2c->gpio); + 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->algo_data.data = i2c; |