diff options
author | lars <lars@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2009-12-07 10:13:32 +0000 |
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committer | lars <lars@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2009-12-07 10:13:32 +0000 |
commit | 09c77afbdd5409295046aa133a30e60990df78f7 (patch) | |
tree | 959054df39b6780009b28b405472fb0441a417dd /target/linux/s3c24xx/files-2.6.31/drivers/mfd/glamo/glamo-gpio.c | |
parent | 50aa8c39011015c7610d7480f49cef8563f3f8b1 (diff) |
[s3c24xx] Remove 2.6.31 support.
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@18673 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/s3c24xx/files-2.6.31/drivers/mfd/glamo/glamo-gpio.c')
-rw-r--r-- | target/linux/s3c24xx/files-2.6.31/drivers/mfd/glamo/glamo-gpio.c | 287 |
1 files changed, 0 insertions, 287 deletions
diff --git a/target/linux/s3c24xx/files-2.6.31/drivers/mfd/glamo/glamo-gpio.c b/target/linux/s3c24xx/files-2.6.31/drivers/mfd/glamo/glamo-gpio.c deleted file mode 100644 index 89112b7e6..000000000 --- a/target/linux/s3c24xx/files-2.6.31/drivers/mfd/glamo/glamo-gpio.c +++ /dev/null @@ -1,287 +0,0 @@ -/* Smedia Glamo 336x/337x gpio driver - * - * (C) 2009 Lars-Peter Clausen - * - * 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; either version 2 of - * the License, or (at your option) any later version. - * - * 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/init.h> -#include <linux/module.h> -#include <linux/spinlock.h> -#include <linux/io.h> -#include <linux/platform_device.h> - -#include <linux/gpio.h> -#include <linux/mfd/glamo.h> - -#include "glamo-core.h" -#include "glamo-regs.h" - -#define GLAMO_NR_GPIO 21 -#define GLAMO_NR_GPIO_REGS DIV_ROUND_UP(GLAMO_NR_GPIO, 4) - -#define GLAMO_REG_GPIO(x) (((x) * 2) + GLAMO_REG_GPIO_GEN1) - -struct glamo_gpio { - struct glamo_core *glamo; - struct gpio_chip chip; - uint16_t saved_regs[GLAMO_NR_GPIO_REGS]; -}; - -#define REG_OF_GPIO(gpio) (GLAMO_REG_GPIO(gpio >> 2)) -#define NUM_OF_GPIO(gpio) (gpio & 0x3) -#define DIRECTION_BIT(gpio) (1 << (NUM_OF_GPIO(gpio) + 0)) -#define OUTPUT_BIT(gpio) (1 << (NUM_OF_GPIO(gpio) + 4)) -#define INPUT_BIT(gpio) (1 << (NUM_OF_GPIO(gpio) + 8)) -#define FUNC_BIT(gpio) (1 << (NUM_OF_GPIO(gpio) + 12)) - - -static inline struct glamo_core *chip_to_glamo(struct gpio_chip *chip) -{ - return container_of(chip, struct glamo_gpio, chip)->glamo; -} - -static void glamo_gpio_set(struct gpio_chip *chip, unsigned offset, int value) -{ - struct glamo_core *glamo = chip_to_glamo(chip); - unsigned int reg = REG_OF_GPIO(offset); - u_int16_t tmp; - - spin_lock(&glamo->lock); - tmp = readw(glamo->base + reg); - if (value) - tmp |= OUTPUT_BIT(offset); - else - tmp &= ~OUTPUT_BIT(offset); - writew(tmp, glamo->base + reg); - spin_unlock(&glamo->lock); -} - -static int glamo_gpio_get(struct gpio_chip *chip, unsigned offset) -{ - struct glamo_core *glamo = chip_to_glamo(chip); - return readw(glamo->base + REG_OF_GPIO(offset)) & INPUT_BIT(offset) ? 1 : 0; -} - -static int glamo_gpio_request(struct gpio_chip *chip, unsigned offset) -{ - struct glamo_core *glamo = chip_to_glamo(chip); - unsigned int reg = REG_OF_GPIO(offset); - u_int16_t tmp; - - spin_lock(&glamo->lock); - tmp = readw(glamo->base + reg); - if ((tmp & FUNC_BIT(offset)) == 0) { - tmp |= FUNC_BIT(offset); - writew(tmp, glamo->base + reg); - } - spin_unlock(&glamo->lock); - - return 0; -} - -static void glamo_gpio_free(struct gpio_chip *chip, unsigned offset) -{ - struct glamo_core *glamo = chip_to_glamo(chip); - unsigned int reg = REG_OF_GPIO(offset); - u_int16_t tmp; - - spin_lock(&glamo->lock); - tmp = readw(glamo->base + reg); - if ((tmp & FUNC_BIT(offset)) == 1) { - tmp &= ~FUNC_BIT(offset); - writew(tmp, glamo->base + reg); - } - spin_unlock(&glamo->lock); -} - -static int glamo_gpio_direction_output(struct gpio_chip *chip, unsigned offset, - int value) -{ - struct glamo_core *glamo = chip_to_glamo(chip); - unsigned int reg = REG_OF_GPIO(offset); - u_int16_t tmp; - - spin_lock(&glamo->lock); - tmp = readw(glamo->base + reg); - tmp &= ~DIRECTION_BIT(offset); - - if (value) - tmp |= OUTPUT_BIT(offset); - else - tmp &= ~OUTPUT_BIT(offset); - - writew(tmp, glamo->base + reg); - spin_unlock(&glamo->lock); - - return 0; -} - -static int glamo_gpio_direction_input(struct gpio_chip *chip, unsigned offset) -{ - struct glamo_core *glamo = chip_to_glamo(chip); - unsigned int reg = REG_OF_GPIO(offset); - u_int16_t tmp; - - spin_lock(&glamo->lock); - tmp = readw(glamo->base + reg); - if ((tmp & DIRECTION_BIT(offset)) == 0) { - tmp |= DIRECTION_BIT(offset); - writew(tmp, glamo->base + reg); - } - spin_unlock(&glamo->lock); - - return 0; -} - -static const struct __devinit gpio_chip glamo_gpio_chip = { - .label = "glamo", - .request = glamo_gpio_request, - .free = glamo_gpio_free, - .direction_input = glamo_gpio_direction_input, - .get = glamo_gpio_get, - .direction_output = glamo_gpio_direction_output, - .set = glamo_gpio_set, - .base = -1, - .ngpio = GLAMO_NR_GPIO, - .can_sleep = 0, - .owner = THIS_MODULE, -}; - -static int __devinit glamo_gpio_probe(struct platform_device *pdev) -{ - struct glamo_platform_data *pdata = pdev->dev.parent->platform_data; - struct glamo_gpio *glamo_gpio; - int ret; - - glamo_gpio = kzalloc(sizeof(struct glamo_gpio), GFP_KERNEL); - if (!glamo_gpio) - return -ENOMEM; - - glamo_gpio->glamo = dev_get_drvdata(pdev->dev.parent); - glamo_gpio->chip = glamo_gpio_chip; - glamo_gpio->chip.dev = &pdev->dev; - if (pdata) - glamo_gpio->chip.base = pdata->gpio_base; - - ret = gpiochip_add(&glamo_gpio->chip); - - if (ret) { - dev_err(&pdev->dev, "Could not register gpio chip: %d\n", ret); - goto err; - } - - platform_set_drvdata(pdev, glamo_gpio); - - dev_info(&pdev->dev, "Glamo GPIO registered\n"); - - if (pdata->registered) - pdata->registered(&pdev->dev); - - return 0; -err: - kfree(glamo_gpio); - return ret; -} - -static int __devexit glamo_gpio_remove(struct platform_device *pdev) -{ - struct glamo_gpio *glamo_gpio = platform_get_drvdata(pdev); - int ret; - - ret = gpiochip_remove(&glamo_gpio->chip); - if (!ret) - goto done; - - platform_set_drvdata(pdev, NULL); - kfree(glamo_gpio); - -done: - return ret; -} - -#ifdef CONFIG_PM - -static int glamo_gpio_suspend(struct device *dev) -{ - struct glamo_gpio *glamo_gpio = dev_get_drvdata(dev); - struct glamo_core *glamo = glamo_gpio->glamo; - uint16_t *saved_regs = glamo_gpio->saved_regs; - int i; - - spin_lock(&glamo->lock); - for (i = 0; i < GLAMO_NR_GPIO / 4; ++i) - saved_regs[i] = readw(glamo->base + GLAMO_REG_GPIO(i)); - spin_unlock(&glamo->lock); - - return 0; -} - -static int glamo_gpio_resume(struct device *dev) -{ - struct glamo_gpio *glamo_gpio = dev_get_drvdata(dev); - struct glamo_core *glamo = glamo_gpio->glamo; - uint16_t *saved_regs = glamo_gpio->saved_regs; - int i; - - spin_lock(&glamo->lock); - for (i = 0; i < GLAMO_NR_GPIO_REGS; ++i) - writew(saved_regs[i], glamo->base + GLAMO_REG_GPIO(i)); - spin_unlock(&glamo->lock); - return 0; -} - -static const struct dev_pm_ops glamo_pm_ops = { - .suspend = glamo_gpio_suspend, - .resume = glamo_gpio_resume, - .freeze = glamo_gpio_suspend, - .thaw = glamo_gpio_resume, -}; - -#define GLAMO_GPIO_PM_OPS (&glamo_pm_ops) - -#else -#define GLAMO_GPIO_PM_OPS NULL -#endif - -static struct platform_driver glamo_gpio_driver = { - .driver = { - .name = "glamo-gpio", - .owner = THIS_MODULE, - .pm = GLAMO_GPIO_PM_OPS, - }, - .probe = glamo_gpio_probe, - .remove = __devexit_p(glamo_gpio_remove), -}; - -static int __devinit glamo_gpio_init(void) -{ - return platform_driver_register(&glamo_gpio_driver); -} - -static void __exit glamo_gpio_exit(void) -{ - platform_driver_unregister(&glamo_gpio_driver); -} - -module_init(glamo_gpio_init); -module_exit(glamo_gpio_exit); - -MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>"); -MODULE_DESCRIPTION("GPIO interface for the Glamo multimedia device"); -MODULE_LICENSE("GPL"); -MODULE_ALIAS("platform:glamo-gpio"); |