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gpio: renesas: Migrate to pinctrl GPIO accessors

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Switch to generic pin controller API for configuring pins as GPIOs
instead of using the ad-hoc call into the R-Car PFC driver. Moreover,
add .free() implementation for the GPIO controller.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Alex Kiernan <alex.kiernan@gmail.com>
Cc: Christoph Muellner <christoph.muellner@theobroma-systems.com>
Cc: Eugeniu Rosca <roscaeugeniu@gmail.com>
Cc: Patrice Chotard <patrice.chotard@st.com>
Cc: Patrick DELAUNAY <patrick.delaunay@st.com>
Cc: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Cc: Simon Glass <sjg@chromium.org>
This commit is contained in:
Marek Vasut 2019-04-21 22:46:25 +02:00 committed by Marek Vasut
parent 89ba7c5a8c
commit fbf26bea39
1 changed files with 7 additions and 8 deletions
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15
drivers/gpio/gpio-rcar.c
View File

@ -6,6 +6,7 @@
#include <common.h>
#include <clk.h>
#include <dm.h>
#include <dm/pinctrl.h>
#include <errno.h>
#include <asm/gpio.h>
#include <asm/io.h>
@ -117,19 +118,17 @@ static int rcar_gpio_get_function(struct udevice *dev, unsigned offset)
static int rcar_gpio_request(struct udevice *dev, unsigned offset,
const char *label)
{
struct rcar_gpio_priv *priv = dev_get_priv(dev);
struct udevice *pctldev;
int ret;
return pinctrl_gpio_request(dev, offset);
}
ret = uclass_get_device(UCLASS_PINCTRL, 0, &pctldev);
if (ret)
return ret;
return sh_pfc_config_mux_for_gpio(pctldev, priv->pfc_offset + offset);
static int rcar_gpio_free(struct udevice *dev, unsigned offset)
{
return pinctrl_gpio_free(dev, offset);
}
static const struct dm_gpio_ops rcar_gpio_ops = {
.request = rcar_gpio_request,
.free = rcar_gpio_free,
.direction_input = rcar_gpio_direction_input,
.direction_output = rcar_gpio_direction_output,
.get_value = rcar_gpio_get_value,