gpio: reorganize drivers

Sort the gpio makefile and enforce the naming convention gpio-*.c for
gpio drivers.

v2: cleaned up filenames in Kconfig and comment blocks
v3: fixup use of BASIC_MMIO to GENERIC_GPIO for mxc

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>

1 files changed, 0 insertions, 316 deletions

diff --git a/drivers/gpio/pch_gpio.c b/drivers/gpio/pch_gpio.c
deleted file mode 100644
index 36919e7..0000000
--- a/drivers/gpio/pch_gpio.c
+++ /dev/null
@@ -1,316 +0,0 @@
-/*
- * Copyright (C) 2010 OKI SEMICONDUCTOR Co., LTD.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
- */
-#include <linux/kernel.h>
-#include <linux/pci.h>
-#include <linux/gpio.h>
-
-#define PCH_GPIO_ALL_PINS	0xfff /* Mask for GPIO pins 0 to 11 */
-#define GPIO_NUM_PINS	12	/* Specifies number of GPIO PINS GPIO0-GPIO11 */
-
-struct pch_regs {
-	u32	ien;
-	u32	istatus;
-	u32	idisp;
-	u32	iclr;
-	u32	imask;
-	u32	imaskclr;
-	u32	po;
-	u32	pi;
-	u32	pm;
-	u32	im0;
-	u32	im1;
-	u32	reserved[4];
-	u32	reset;
-};
-
-/**
- * struct pch_gpio_reg_data - The register store data.
- * @po_reg:	To store contents of PO register.
- * @pm_reg:	To store contents of PM register.
- */
-struct pch_gpio_reg_data {
-	u32 po_reg;
-	u32 pm_reg;
-};
-
-/**
- * struct pch_gpio - GPIO private data structure.
- * @base:			PCI base address of Memory mapped I/O register.
- * @reg:			Memory mapped PCH GPIO register list.
- * @dev:			Pointer to device structure.
- * @gpio:			Data for GPIO infrastructure.
- * @pch_gpio_reg:		Memory mapped Register data is saved here
- *				when suspend.
- */
-struct pch_gpio {
-	void __iomem *base;
-	struct pch_regs __iomem *reg;
-	struct device *dev;
-	struct gpio_chip gpio;
-	struct pch_gpio_reg_data pch_gpio_reg;
-	struct mutex lock;
-};
-
-static void pch_gpio_set(struct gpio_chip *gpio, unsigned nr, int val)
-{
-	u32 reg_val;
-	struct pch_gpio *chip =	container_of(gpio, struct pch_gpio, gpio);
-
-	mutex_lock(&chip->lock);
-	reg_val = ioread32(&chip->reg->po);
-	if (val)
-		reg_val |= (1 << nr);
-	else
-		reg_val &= ~(1 << nr);
-
-	iowrite32(reg_val, &chip->reg->po);
-	mutex_unlock(&chip->lock);
-}
-
-static int pch_gpio_get(struct gpio_chip *gpio, unsigned nr)
-{
-	struct pch_gpio *chip =	container_of(gpio, struct pch_gpio, gpio);
-
-	return ioread32(&chip->reg->pi) & (1 << nr);
-}
-
-static int pch_gpio_direction_output(struct gpio_chip *gpio, unsigned nr,
-				     int val)
-{
-	struct pch_gpio *chip =	container_of(gpio, struct pch_gpio, gpio);
-	u32 pm;
-	u32 reg_val;
-
-	mutex_lock(&chip->lock);
-	pm = ioread32(&chip->reg->pm) & PCH_GPIO_ALL_PINS;
-	pm |= (1 << nr);
-	iowrite32(pm, &chip->reg->pm);
-
-	reg_val = ioread32(&chip->reg->po);
-	if (val)
-		reg_val |= (1 << nr);
-	else
-		reg_val &= ~(1 << nr);
-	iowrite32(reg_val, &chip->reg->po);
-
-	mutex_unlock(&chip->lock);
-
-	return 0;
-}
-
-static int pch_gpio_direction_input(struct gpio_chip *gpio, unsigned nr)
-{
-	struct pch_gpio *chip =	container_of(gpio, struct pch_gpio, gpio);
-	u32 pm;
-
-	mutex_lock(&chip->lock);
-	pm = ioread32(&chip->reg->pm) & PCH_GPIO_ALL_PINS; /*bits 0-11*/
-	pm &= ~(1 << nr);
-	iowrite32(pm, &chip->reg->pm);
-	mutex_unlock(&chip->lock);
-
-	return 0;
-}
-
-/*
- * Save register configuration and disable interrupts.
- */
-static void pch_gpio_save_reg_conf(struct pch_gpio *chip)
-{
-	chip->pch_gpio_reg.po_reg = ioread32(&chip->reg->po);
-	chip->pch_gpio_reg.pm_reg = ioread32(&chip->reg->pm);
-}
-
-/*
- * This function restores the register configuration of the GPIO device.
- */
-static void pch_gpio_restore_reg_conf(struct pch_gpio *chip)
-{
-	/* to store contents of PO register */
-	iowrite32(chip->pch_gpio_reg.po_reg, &chip->reg->po);
-	/* to store contents of PM register */
-	iowrite32(chip->pch_gpio_reg.pm_reg, &chip->reg->pm);
-}
-
-static void pch_gpio_setup(struct pch_gpio *chip)
-{
-	struct gpio_chip *gpio = &chip->gpio;
-
-	gpio->label = dev_name(chip->dev);
-	gpio->owner = THIS_MODULE;
-	gpio->direction_input = pch_gpio_direction_input;
-	gpio->get = pch_gpio_get;
-	gpio->direction_output = pch_gpio_direction_output;
-	gpio->set = pch_gpio_set;
-	gpio->dbg_show = NULL;
-	gpio->base = -1;
-	gpio->ngpio = GPIO_NUM_PINS;
-	gpio->can_sleep = 0;
-}
-
-static int __devinit pch_gpio_probe(struct pci_dev *pdev,
-				    const struct pci_device_id *id)
-{
-	s32 ret;
-	struct pch_gpio *chip;
-
-	chip = kzalloc(sizeof(*chip), GFP_KERNEL);
-	if (chip == NULL)
-		return -ENOMEM;
-
-	chip->dev = &pdev->dev;
-	ret = pci_enable_device(pdev);
-	if (ret) {
-		dev_err(&pdev->dev, "%s : pci_enable_device FAILED", __func__);
-		goto err_pci_enable;
-	}
-
-	ret = pci_request_regions(pdev, KBUILD_MODNAME);
-	if (ret) {
-		dev_err(&pdev->dev, "pci_request_regions FAILED-%d", ret);
-		goto err_request_regions;
-	}
-
-	chip->base = pci_iomap(pdev, 1, 0);
-	if (chip->base == 0) {
-		dev_err(&pdev->dev, "%s : pci_iomap FAILED", __func__);
-		ret = -ENOMEM;
-		goto err_iomap;
-	}
-
-	chip->reg = chip->base;
-	pci_set_drvdata(pdev, chip);
-	mutex_init(&chip->lock);
-	pch_gpio_setup(chip);
-	ret = gpiochip_add(&chip->gpio);
-	if (ret) {
-		dev_err(&pdev->dev, "PCH gpio: Failed to register GPIO\n");
-		goto err_gpiochip_add;
-	}
-
-	return 0;
-
-err_gpiochip_add:
-	pci_iounmap(pdev, chip->base);
-
-err_iomap:
-	pci_release_regions(pdev);
-
-err_request_regions:
-	pci_disable_device(pdev);
-
-err_pci_enable:
-	kfree(chip);
-	dev_err(&pdev->dev, "%s Failed returns %d\n", __func__, ret);
-	return ret;
-}
-
-static void __devexit pch_gpio_remove(struct pci_dev *pdev)
-{
-	int err;
-	struct pch_gpio *chip = pci_get_drvdata(pdev);
-
-	err = gpiochip_remove(&chip->gpio);
-	if (err)
-		dev_err(&pdev->dev, "Failed gpiochip_remove\n");
-
-	pci_iounmap(pdev, chip->base);
-	pci_release_regions(pdev);
-	pci_disable_device(pdev);
-	kfree(chip);
-}
-
-#ifdef CONFIG_PM
-static int pch_gpio_suspend(struct pci_dev *pdev, pm_message_t state)
-{
-	s32 ret;
-	struct pch_gpio *chip = pci_get_drvdata(pdev);
-
-	pch_gpio_save_reg_conf(chip);
-	pch_gpio_restore_reg_conf(chip);
-
-	ret = pci_save_state(pdev);
-	if (ret) {
-		dev_err(&pdev->dev, "pci_save_state Failed-%d\n", ret);
-		return ret;
-	}
-	pci_disable_device(pdev);
-	pci_set_power_state(pdev, PCI_D0);
-	ret = pci_enable_wake(pdev, PCI_D0, 1);
-	if (ret)
-		dev_err(&pdev->dev, "pci_enable_wake Failed -%d\n", ret);
-
-	return 0;
-}
-
-static int pch_gpio_resume(struct pci_dev *pdev)
-{
-	s32 ret;
-	struct pch_gpio *chip = pci_get_drvdata(pdev);
-
-	ret = pci_enable_wake(pdev, PCI_D0, 0);
-
-	pci_set_power_state(pdev, PCI_D0);
-	ret = pci_enable_device(pdev);
-	if (ret) {
-		dev_err(&pdev->dev, "pci_enable_device Failed-%d ", ret);
-		return ret;
-	}
-	pci_restore_state(pdev);
-
-	iowrite32(0x01, &chip->reg->reset);
-	iowrite32(0x00, &chip->reg->reset);
-	pch_gpio_restore_reg_conf(chip);
-
-	return 0;
-}
-#else
-#define pch_gpio_suspend NULL
-#define pch_gpio_resume NULL
-#endif
-
-#define PCI_VENDOR_ID_ROHM             0x10DB
-static DEFINE_PCI_DEVICE_TABLE(pch_gpio_pcidev_id) = {
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x8803) },
-	{ PCI_DEVICE(PCI_VENDOR_ID_ROHM, 0x8014) },
-	{ 0, }
-};
-MODULE_DEVICE_TABLE(pci, pch_gpio_pcidev_id);
-
-static struct pci_driver pch_gpio_driver = {
-	.name = "pch_gpio",
-	.id_table = pch_gpio_pcidev_id,
-	.probe = pch_gpio_probe,
-	.remove = __devexit_p(pch_gpio_remove),
-	.suspend = pch_gpio_suspend,
-	.resume = pch_gpio_resume
-};
-
-static int __init pch_gpio_pci_init(void)
-{
-	return pci_register_driver(&pch_gpio_driver);
-}
-module_init(pch_gpio_pci_init);
-
-static void __exit pch_gpio_pci_exit(void)
-{
-	pci_unregister_driver(&pch_gpio_driver);
-}
-module_exit(pch_gpio_pci_exit);
-
-MODULE_DESCRIPTION("PCH GPIO PCI Driver");
-MODULE_LICENSE("GPL");