sh-pfc: Move driver from drivers/sh/ to drivers/pinctrl/

[karo-tx-linux.git] / drivers / sh / pfc / gpio.c

diff --git a/drivers/sh/pfc/gpio.c b/drivers/sh/pfc/gpio.c
deleted file mode 100644 (file)
index a0454f3..0000000
--- a/drivers/sh/pfc/gpio.c
+++ /dev/null
@@ -1,179 +0,0 @@
-/*
- * SuperH Pin Function Controller GPIO driver.
- *
- * Copyright (C) 2008 Magnus Damm
- * Copyright (C) 2009 - 2012 Paul Mundt
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME " gpio: " fmt
-
-#include <linux/device.h>
-#include <linux/gpio.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/pinctrl/consumer.h>
-#include <linux/sh_pfc.h>
-#include <linux/slab.h>
-#include <linux/spinlock.h>
-
-#include "core.h"
-
-struct sh_pfc_chip {
-       struct sh_pfc           *pfc;
-       struct gpio_chip        gpio_chip;
-};
-
-static struct sh_pfc_chip *gpio_to_pfc_chip(struct gpio_chip *gc)
-{
-       return container_of(gc, struct sh_pfc_chip, gpio_chip);
-}
-
-static struct sh_pfc *gpio_to_pfc(struct gpio_chip *gc)
-{
-       return gpio_to_pfc_chip(gc)->pfc;
-}
-
-static int sh_gpio_request(struct gpio_chip *gc, unsigned offset)
-{
-       return pinctrl_request_gpio(offset);
-}
-
-static void sh_gpio_free(struct gpio_chip *gc, unsigned offset)
-{
-       pinctrl_free_gpio(offset);
-}
-
-static void sh_gpio_set_value(struct sh_pfc *pfc, unsigned gpio, int value)
-{
-       struct pinmux_data_reg *dr = NULL;
-       int bit = 0;
-
-       if (sh_pfc_get_data_reg(pfc, gpio, &dr, &bit) != 0)
-               BUG();
-       else
-               sh_pfc_write_bit(dr, bit, value);
-}
-
-static int sh_gpio_get_value(struct sh_pfc *pfc, unsigned gpio)
-{
-       struct pinmux_data_reg *dr = NULL;
-       int bit = 0;
-
-       if (sh_pfc_get_data_reg(pfc, gpio, &dr, &bit) != 0)
-               return -EINVAL;
-
-       return sh_pfc_read_bit(dr, bit);
-}
-
-static int sh_gpio_direction_input(struct gpio_chip *gc, unsigned offset)
-{
-       return pinctrl_gpio_direction_input(offset);
-}
-
-static int sh_gpio_direction_output(struct gpio_chip *gc, unsigned offset,
-                                   int value)
-{
-       sh_gpio_set_value(gpio_to_pfc(gc), offset, value);
-
-       return pinctrl_gpio_direction_output(offset);
-}
-
-static int sh_gpio_get(struct gpio_chip *gc, unsigned offset)
-{
-       return sh_gpio_get_value(gpio_to_pfc(gc), offset);
-}
-
-static void sh_gpio_set(struct gpio_chip *gc, unsigned offset, int value)
-{
-       sh_gpio_set_value(gpio_to_pfc(gc), offset, value);
-}
-
-static int sh_gpio_to_irq(struct gpio_chip *gc, unsigned offset)
-{
-       struct sh_pfc *pfc = gpio_to_pfc(gc);
-       pinmux_enum_t enum_id;
-       pinmux_enum_t *enum_ids;
-       int i, k, pos;
-
-       pos = 0;
-       enum_id = 0;
-       while (1) {
-               pos = sh_pfc_gpio_to_enum(pfc, offset, pos, &enum_id);
-               if (pos <= 0 || !enum_id)
-                       break;
-
-               for (i = 0; i < pfc->pdata->gpio_irq_size; i++) {
-                       enum_ids = pfc->pdata->gpio_irq[i].enum_ids;
-                       for (k = 0; enum_ids[k]; k++) {
-                               if (enum_ids[k] == enum_id)
-                                       return pfc->pdata->gpio_irq[i].irq;
-                       }
-               }
-       }
-
-       return -ENOSYS;
-}
-
-static void sh_pfc_gpio_setup(struct sh_pfc_chip *chip)
-{
-       struct sh_pfc *pfc = chip->pfc;
-       struct gpio_chip *gc = &chip->gpio_chip;
-
-       gc->request = sh_gpio_request;
-       gc->free = sh_gpio_free;
-       gc->direction_input = sh_gpio_direction_input;
-       gc->get = sh_gpio_get;
-       gc->direction_output = sh_gpio_direction_output;
-       gc->set = sh_gpio_set;
-       gc->to_irq = sh_gpio_to_irq;
-
-       WARN_ON(pfc->pdata->first_gpio != 0); /* needs testing */
-
-       gc->label = pfc->pdata->name;
-       gc->owner = THIS_MODULE;
-       gc->base = pfc->pdata->first_gpio;
-       gc->ngpio = (pfc->pdata->last_gpio - pfc->pdata->first_gpio) + 1;
-}
-
-int sh_pfc_register_gpiochip(struct sh_pfc *pfc)
-{
-       struct sh_pfc_chip *chip;
-       int ret;
-
-       chip = devm_kzalloc(pfc->dev, sizeof(*chip), GFP_KERNEL);
-       if (unlikely(!chip))
-               return -ENOMEM;
-
-       chip->pfc = pfc;
-
-       sh_pfc_gpio_setup(chip);
-
-       ret = gpiochip_add(&chip->gpio_chip);
-       if (unlikely(ret < 0))
-               return ret;
-
-       pfc->gpio = chip;
-
-       pr_info("%s handling gpio %d -> %d\n",
-               pfc->pdata->name, pfc->pdata->first_gpio,
-               pfc->pdata->last_gpio);
-
-       return 0;
-}
-
-int sh_pfc_unregister_gpiochip(struct sh_pfc *pfc)
-{
-       struct sh_pfc_chip *chip = pfc->gpio;
-       int ret;
-
-       ret = gpiochip_remove(&chip->gpio_chip);
-       if (unlikely(ret < 0))
-               return ret;
-
-       pfc->gpio = NULL;
-       return 0;
-}