diff options
| author | Linus Walleij <linus.walleij@linaro.org> | 2019-12-17 15:12:41 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-12-30 20:37:42 +0100 |
| commit | 3b31ec1848ec41d9501db3de61805e3ae173f485 (patch) | |
| tree | b4eeb271cdc7782d6a7ffc8ecf3fa4d5c0ae8c7b /drivers/usb/renesas_usbhs/common.c | |
| parent | 91687c1926bcd6b80d669375d57331b7bf80bf99 (diff) | |
usb: renesas_usbhs: Switch to GPIO descriptor
The Renesas USBHS driver includes a bit of surplus headers
and uses the old GPIO API so let's switch it to use the
GPIO descriptor.
I noticed that the enable_gpio inside renesas_usbhs_driver_param
isn't really referenced anywhere, and it is also the wrong
type (u32) so let's just delete it and use a local variable
instead.
Cc: Eugeniu Rosca <erosca@de.adit-jv.com>
Cc: Veeraiyan Chidambaram <veeraiyan.chidambaram@in.bosch.com>
Cc: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20191217141241.57639-1-linus.walleij@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/renesas_usbhs/common.c')
| -rw-r--r-- | drivers/usb/renesas_usbhs/common.c | 22 |
1 files changed, 9 insertions, 13 deletions
diff --git a/drivers/usb/renesas_usbhs/common.c b/drivers/usb/renesas_usbhs/common.c index d438b7871446..3af91b2b8f76 100644 --- a/drivers/usb/renesas_usbhs/common.c +++ b/drivers/usb/renesas_usbhs/common.c @@ -8,11 +8,10 @@ */ #include <linux/clk.h> #include <linux/err.h> -#include <linux/gpio.h> +#include <linux/gpio/consumer.h> #include <linux/io.h> #include <linux/module.h> #include <linux/of_device.h> -#include <linux/of_gpio.h> #include <linux/pm_runtime.h> #include <linux/reset.h> #include <linux/slab.h> @@ -592,7 +591,8 @@ static int usbhs_probe(struct platform_device *pdev) struct usbhs_priv *priv; struct resource *irq_res; struct device *dev = &pdev->dev; - int ret, gpio; + struct gpio_desc *gpiod; + int ret; u32 tmp; /* check device node */ @@ -657,10 +657,9 @@ static int usbhs_probe(struct platform_device *pdev) priv->dparam.pio_dma_border = 64; /* 64byte */ if (!of_property_read_u32(dev_of_node(dev), "renesas,buswait", &tmp)) priv->dparam.buswait_bwait = tmp; - gpio = of_get_named_gpio_flags(dev_of_node(dev), "renesas,enable-gpio", - 0, NULL); - if (gpio > 0) - priv->dparam.enable_gpio = gpio; + gpiod = devm_gpiod_get_optional(dev, "renesas,enable", GPIOD_IN); + if (IS_ERR(gpiod)) + return PTR_ERR(gpiod); /* FIXME */ /* runtime power control ? */ @@ -708,13 +707,10 @@ static int usbhs_probe(struct platform_device *pdev) usbhs_sys_clock_ctrl(priv, 0); /* check GPIO determining if USB function should be enabled */ - if (priv->dparam.enable_gpio) { - gpio_request_one(priv->dparam.enable_gpio, GPIOF_IN, NULL); - ret = !gpio_get_value(priv->dparam.enable_gpio); - gpio_free(priv->dparam.enable_gpio); + if (gpiod) { + ret = !gpiod_get_value(gpiod); if (ret) { - dev_warn(dev, "USB function not selected (GPIO %d)\n", - priv->dparam.enable_gpio); + dev_warn(dev, "USB function not selected (GPIO)\n"); ret = -ENOTSUPP; goto probe_end_mod_exit; } |