diff options
| author | Marc Dietrich <marvin24@gmx.de> | 2018-04-19 13:01:50 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-04-23 14:38:00 +0200 |
| commit | 40fbffd9b9a110b7b1eb9e4fb609018d29dff157 (patch) | |
| tree | 18c2ffe143c2a40d4e9e2d804201ba725ea3d17c /drivers/staging/nvec/nvec.c | |
| parent | d4381795988a3c2a6b1221354bf3884cbdf0a802 (diff) | |
staging: nvec: convert to use GPIO descriptors
Use GPIO descriptors instead of relying on the old method.
Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Marc Dietrich <marvin24@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/nvec/nvec.c')
| -rw-r--r-- | drivers/staging/nvec/nvec.c | 42 |
1 files changed, 10 insertions, 32 deletions
diff --git a/drivers/staging/nvec/nvec.c b/drivers/staging/nvec/nvec.c index 2907207fd2bc..08027a36e0bc 100644 --- a/drivers/staging/nvec/nvec.c +++ b/drivers/staging/nvec/nvec.c @@ -17,12 +17,11 @@ #include <linux/completion.h> #include <linux/delay.h> #include <linux/err.h> -#include <linux/gpio.h> +#include <linux/gpio/consumer.h> #include <linux/interrupt.h> #include <linux/io.h> #include <linux/irq.h> #include <linux/of.h> -#include <linux/of_gpio.h> #include <linux/list.h> #include <linux/mfd/core.h> #include <linux/mutex.h> @@ -236,8 +235,8 @@ static size_t nvec_msg_size(struct nvec_msg *msg) static void nvec_gpio_set_value(struct nvec_chip *nvec, int value) { dev_dbg(nvec->dev, "GPIO changed from %u to %u\n", - gpio_get_value(nvec->gpio), value); - gpio_set_value(nvec->gpio, value); + gpiod_get_value(nvec->gpiod), value); + gpiod_set_value(nvec->gpiod, value); } /** @@ -761,27 +760,6 @@ static void nvec_power_off(void) nvec_write_async(nvec_power_handle, ap_pwr_down, 2); } -/* - * Parse common device tree data - */ -static int nvec_i2c_parse_dt_pdata(struct nvec_chip *nvec) -{ - nvec->gpio = of_get_named_gpio(nvec->dev->of_node, "request-gpios", 0); - - if (nvec->gpio < 0) { - dev_err(nvec->dev, "no gpio specified"); - return -ENODEV; - } - - if (of_property_read_u32(nvec->dev->of_node, "slave-addr", - &nvec->i2c_addr)) { - dev_err(nvec->dev, "no i2c address specified"); - return -ENODEV; - } - - return 0; -} - static int tegra_nvec_probe(struct platform_device *pdev) { int err, ret; @@ -807,9 +785,10 @@ static int tegra_nvec_probe(struct platform_device *pdev) platform_set_drvdata(pdev, nvec); nvec->dev = dev; - err = nvec_i2c_parse_dt_pdata(nvec); - if (err < 0) - return err; + if (of_property_read_u32(dev->of_node, "slave-addr", &nvec->i2c_addr)) { + dev_err(dev, "no i2c address specified"); + return -ENODEV; + } res = platform_get_resource(pdev, IORESOURCE_MEM, 0); base = devm_ioremap_resource(dev, res); @@ -850,11 +829,10 @@ static int tegra_nvec_probe(struct platform_device *pdev) INIT_WORK(&nvec->rx_work, nvec_dispatch); INIT_WORK(&nvec->tx_work, nvec_request_master); - err = devm_gpio_request_one(dev, nvec->gpio, GPIOF_OUT_INIT_HIGH, - "nvec gpio"); - if (err < 0) { + nvec->gpiod = devm_gpiod_get(dev, "request", GPIOD_OUT_HIGH); + if (IS_ERR(nvec->gpiod)) { dev_err(dev, "couldn't request gpio\n"); - return -ENODEV; + return PTR_ERR(nvec->gpiod); } err = devm_request_irq(dev, nvec->irq, nvec_interrupt, 0, |