+// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2015 Google, Inc
*
* (C) Copyright 2008-2014 Rockchip Electronics
* Peter, Software Engineering, <superpeter.cai@gmail.com>.
- *
- * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <dm.h>
-#include <asm/errno.h>
+#include <syscon.h>
+#include <linux/errno.h>
#include <asm/gpio.h>
#include <asm/io.h>
-#include <dt-bindings/gpio/gpio.h>
+#include <asm/arch/clock.h>
+#include <dm/pinctrl.h>
+#include <dt-bindings/clock/rk3288-cru.h>
enum {
ROCKCHIP_GPIOS_PER_BANK = 32,
struct rockchip_gpio_priv {
struct rockchip_gpio_regs *regs;
+ struct udevice *pinctrl;
+ int bank;
char name[2];
};
struct rockchip_gpio_priv *priv = dev_get_priv(dev);
struct rockchip_gpio_regs *regs = priv->regs;
- return readl(®s->ext_port) & OFFSET_TO_BIT(offset);
+ return readl(®s->ext_port) & OFFSET_TO_BIT(offset) ? 1 : 0;
}
static int rockchip_gpio_set_value(struct udevice *dev, unsigned offset,
static int rockchip_gpio_get_function(struct udevice *dev, unsigned offset)
{
- return -ENOSYS;
-}
+#ifdef CONFIG_SPL_BUILD
+ return -ENODATA;
+#else
+ struct rockchip_gpio_priv *priv = dev_get_priv(dev);
+ struct rockchip_gpio_regs *regs = priv->regs;
+ bool is_output;
+ int ret;
-static int rockchip_gpio_xlate(struct udevice *dev, struct gpio_desc *desc,
- struct fdtdec_phandle_args *args)
-{
- desc->offset = args->args[0];
- desc->flags = args->args[1] & GPIO_ACTIVE_LOW ? GPIOD_ACTIVE_LOW : 0;
+ ret = pinctrl_get_gpio_mux(priv->pinctrl, priv->bank, offset);
+ if (ret)
+ return ret;
+ is_output = readl(®s->swport_ddr) & OFFSET_TO_BIT(offset);
- return 0;
+ return is_output ? GPIOF_OUTPUT : GPIOF_INPUT;
+#endif
}
static int rockchip_gpio_probe(struct udevice *dev)
struct gpio_dev_priv *uc_priv = dev_get_uclass_priv(dev);
struct rockchip_gpio_priv *priv = dev_get_priv(dev);
char *end;
- int bank;
+ int ret;
+
+ priv->regs = dev_read_addr_ptr(dev);
+ ret = uclass_first_device_err(UCLASS_PINCTRL, &priv->pinctrl);
+ if (ret)
+ return ret;
- priv->regs = (struct rockchip_gpio_regs *)dev_get_addr(dev);
uc_priv->gpio_count = ROCKCHIP_GPIOS_PER_BANK;
end = strrchr(dev->name, '@');
- bank = trailing_strtoln(dev->name, end);
- priv->name[0] = 'A' + bank;
+ priv->bank = trailing_strtoln(dev->name, end);
+ priv->name[0] = 'A' + priv->bank;
uc_priv->bank_name = priv->name;
return 0;
.get_value = rockchip_gpio_get_value,
.set_value = rockchip_gpio_set_value,
.get_function = rockchip_gpio_get_function,
- .xlate = rockchip_gpio_xlate,
};
static const struct udevice_id rockchip_gpio_ids[] = {