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authorLinus Torvalds <torvalds@linux-foundation.org>2011-07-22 14:50:57 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-07-22 14:50:57 -0700
commitc7c8518498e82591d7784452f5674c3aeb4d079c (patch)
tree790ff7e6b6741daf32ec686b9a302b957b07c0f4 /arch/powerpc/platforms
parentece236ce2fad9c27a6fd2530f899289025194bce (diff)
parent591567a5ea25852f20b7ef2953f6f72020121199 (diff)
Merge branch 'gpio/next' of git://git.secretlab.ca/git/linux-2.6
* 'gpio/next' of git://git.secretlab.ca/git/linux-2.6: (61 commits) gpio/mxc/mxs: fix build error introduced by the irq_gc_ack() renaming mcp23s08: add i2c support mcp23s08: isolate spi specific parts mcp23s08: get rid of setup/teardown callbacks gpio/tegra: dt: add binding for gpio polarity mcp23s08: remove unused work queue gpio/da9052: remove a redundant assignment for gpio->da9052 gpio/mxc: add device tree probe support ARM: mxc: use ARCH_NR_GPIOS to define gpio number gpio/mxc: get rid of the uses of cpu_is_mx() gpio/mxc: add missing initialization of basic_mmio_gpio shadow variables gpio: Move mpc5200 gpio driver to drivers/gpio GPIO: DA9052 GPIO module v3 gpio/tegra: Use engineering names in DT compatible property of/gpio: Add new method for getting gpios under different property names gpio/dt: Refine GPIO device tree binding gpio/ml-ioh: fix off-by-one for displaying variable i in dev_err gpio/pca953x: Deprecate meaningless device-tree bindings gpio/pca953x: Remove dynamic platform data pointer gpio/pca953x: Fix IRQ support. ...
Diffstat (limited to 'arch/powerpc/platforms')
-rw-r--r--arch/powerpc/platforms/52xx/Kconfig8
-rw-r--r--arch/powerpc/platforms/52xx/Makefile1
-rw-r--r--arch/powerpc/platforms/52xx/mpc52xx_gpio.c380
3 files changed, 0 insertions, 389 deletions
diff --git a/arch/powerpc/platforms/52xx/Kconfig b/arch/powerpc/platforms/52xx/Kconfig
index 47ea1be1481b..90f4496017e4 100644
--- a/arch/powerpc/platforms/52xx/Kconfig
+++ b/arch/powerpc/platforms/52xx/Kconfig
@@ -55,14 +55,6 @@ config PPC_MPC5200_BUGFIX
It is safe to say 'Y' here
-config PPC_MPC5200_GPIO
- bool "MPC5200 GPIO support"
- depends on PPC_MPC52xx
- select ARCH_REQUIRE_GPIOLIB
- select GENERIC_GPIO
- help
- Enable gpiolib support for mpc5200 based boards
-
config PPC_MPC5200_LPBFIFO
tristate "MPC5200 LocalPlus bus FIFO driver"
depends on PPC_MPC52xx
diff --git a/arch/powerpc/platforms/52xx/Makefile b/arch/powerpc/platforms/52xx/Makefile
index 2bc8cd0c5cfc..4e62486791e9 100644
--- a/arch/powerpc/platforms/52xx/Makefile
+++ b/arch/powerpc/platforms/52xx/Makefile
@@ -14,5 +14,4 @@ ifeq ($(CONFIG_PPC_LITE5200),y)
obj-$(CONFIG_PM) += lite5200_sleep.o lite5200_pm.o
endif
-obj-$(CONFIG_PPC_MPC5200_GPIO) += mpc52xx_gpio.o
obj-$(CONFIG_PPC_MPC5200_LPBFIFO) += mpc52xx_lpbfifo.o
diff --git a/arch/powerpc/platforms/52xx/mpc52xx_gpio.c b/arch/powerpc/platforms/52xx/mpc52xx_gpio.c
deleted file mode 100644
index 1757d1db4b51..000000000000
--- a/arch/powerpc/platforms/52xx/mpc52xx_gpio.c
+++ /dev/null
@@ -1,380 +0,0 @@
-/*
- * MPC52xx gpio driver
- *
- * Copyright (c) 2008 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2
- * as published by the Free Software Foundation.
- *
- * 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/of.h>
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/of_gpio.h>
-#include <linux/io.h>
-#include <linux/of_platform.h>
-
-#include <asm/gpio.h>
-#include <asm/mpc52xx.h>
-#include <sysdev/fsl_soc.h>
-
-static DEFINE_SPINLOCK(gpio_lock);
-
-struct mpc52xx_gpiochip {
- struct of_mm_gpio_chip mmchip;
- unsigned int shadow_dvo;
- unsigned int shadow_gpioe;
- unsigned int shadow_ddr;
-};
-
-/*
- * GPIO LIB API implementation for wakeup GPIOs.
- *
- * There's a maximum of 8 wakeup GPIOs. Which of these are available
- * for use depends on your board setup.
- *
- * 0 -> GPIO_WKUP_7
- * 1 -> GPIO_WKUP_6
- * 2 -> PSC6_1
- * 3 -> PSC6_0
- * 4 -> ETH_17
- * 5 -> PSC3_9
- * 6 -> PSC2_4
- * 7 -> PSC1_4
- *
- */
-static int mpc52xx_wkup_gpio_get(struct gpio_chip *gc, unsigned int gpio)
-{
- struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
- struct mpc52xx_gpio_wkup __iomem *regs = mm_gc->regs;
- unsigned int ret;
-
- ret = (in_8(&regs->wkup_ival) >> (7 - gpio)) & 1;
-
- pr_debug("%s: gpio: %d ret: %d\n", __func__, gpio, ret);
-
- return ret;
-}
-
-static inline void
-__mpc52xx_wkup_gpio_set(struct gpio_chip *gc, unsigned int gpio, int val)
-{
- struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
- struct mpc52xx_gpiochip *chip = container_of(mm_gc,
- struct mpc52xx_gpiochip, mmchip);
- struct mpc52xx_gpio_wkup __iomem *regs = mm_gc->regs;
-
- if (val)
- chip->shadow_dvo |= 1 << (7 - gpio);
- else
- chip->shadow_dvo &= ~(1 << (7 - gpio));
-
- out_8(&regs->wkup_dvo, chip->shadow_dvo);
-}
-
-static void
-mpc52xx_wkup_gpio_set(struct gpio_chip *gc, unsigned int gpio, int val)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&gpio_lock, flags);
-
- __mpc52xx_wkup_gpio_set(gc, gpio, val);
-
- spin_unlock_irqrestore(&gpio_lock, flags);
-
- pr_debug("%s: gpio: %d val: %d\n", __func__, gpio, val);
-}
-
-static int mpc52xx_wkup_gpio_dir_in(struct gpio_chip *gc, unsigned int gpio)
-{
- struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
- struct mpc52xx_gpiochip *chip = container_of(mm_gc,
- struct mpc52xx_gpiochip, mmchip);
- struct mpc52xx_gpio_wkup __iomem *regs = mm_gc->regs;
- unsigned long flags;
-
- spin_lock_irqsave(&gpio_lock, flags);
-
- /* set the direction */
- chip->shadow_ddr &= ~(1 << (7 - gpio));
- out_8(&regs->wkup_ddr, chip->shadow_ddr);
-
- /* and enable the pin */
- chip->shadow_gpioe |= 1 << (7 - gpio);
- out_8(&regs->wkup_gpioe, chip->shadow_gpioe);
-
- spin_unlock_irqrestore(&gpio_lock, flags);
-
- return 0;
-}
-
-static int
-mpc52xx_wkup_gpio_dir_out(struct gpio_chip *gc, unsigned int gpio, int val)
-{
- struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
- struct mpc52xx_gpio_wkup __iomem *regs = mm_gc->regs;
- struct mpc52xx_gpiochip *chip = container_of(mm_gc,
- struct mpc52xx_gpiochip, mmchip);
- unsigned long flags;
-
- spin_lock_irqsave(&gpio_lock, flags);
-
- __mpc52xx_wkup_gpio_set(gc, gpio, val);
-
- /* Then set direction */
- chip->shadow_ddr |= 1 << (7 - gpio);
- out_8(&regs->wkup_ddr, chip->shadow_ddr);
-
- /* Finally enable the pin */
- chip->shadow_gpioe |= 1 << (7 - gpio);
- out_8(&regs->wkup_gpioe, chip->shadow_gpioe);
-
- spin_unlock_irqrestore(&gpio_lock, flags);
-
- pr_debug("%s: gpio: %d val: %d\n", __func__, gpio, val);
-
- return 0;
-}
-
-static int __devinit mpc52xx_wkup_gpiochip_probe(struct platform_device *ofdev)
-{
- struct mpc52xx_gpiochip *chip;
- struct mpc52xx_gpio_wkup __iomem *regs;
- struct gpio_chip *gc;
- int ret;
-
- chip = kzalloc(sizeof(*chip), GFP_KERNEL);
- if (!chip)
- return -ENOMEM;
-
- gc = &chip->mmchip.gc;
-
- gc->ngpio = 8;
- gc->direction_input = mpc52xx_wkup_gpio_dir_in;
- gc->direction_output = mpc52xx_wkup_gpio_dir_out;
- gc->get = mpc52xx_wkup_gpio_get;
- gc->set = mpc52xx_wkup_gpio_set;
-
- ret = of_mm_gpiochip_add(ofdev->dev.of_node, &chip->mmchip);
- if (ret)
- return ret;
-
- regs = chip->mmchip.regs;
- chip->shadow_gpioe = in_8(&regs->wkup_gpioe);
- chip->shadow_ddr = in_8(&regs->wkup_ddr);
- chip->shadow_dvo = in_8(&regs->wkup_dvo);
-
- return 0;
-}
-
-static int mpc52xx_gpiochip_remove(struct platform_device *ofdev)
-{
- return -EBUSY;
-}
-
-static const struct of_device_id mpc52xx_wkup_gpiochip_match[] = {
- {
- .compatible = "fsl,mpc5200-gpio-wkup",
- },
- {}
-};
-
-static struct platform_driver mpc52xx_wkup_gpiochip_driver = {
- .driver = {
- .name = "gpio_wkup",
- .owner = THIS_MODULE,
- .of_match_table = mpc52xx_wkup_gpiochip_match,
- },
- .probe = mpc52xx_wkup_gpiochip_probe,
- .remove = mpc52xx_gpiochip_remove,
-};
-
-/*
- * GPIO LIB API implementation for simple GPIOs
- *
- * There's a maximum of 32 simple GPIOs. Which of these are available
- * for use depends on your board setup.
- * The numbering reflects the bit numbering in the port registers:
- *
- * 0..1 > reserved
- * 2..3 > IRDA
- * 4..7 > ETHR
- * 8..11 > reserved
- * 12..15 > USB
- * 16..17 > reserved
- * 18..23 > PSC3
- * 24..27 > PSC2
- * 28..31 > PSC1
- */
-static int mpc52xx_simple_gpio_get(struct gpio_chip *gc, unsigned int gpio)
-{
- struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
- struct mpc52xx_gpio __iomem *regs = mm_gc->regs;
- unsigned int ret;
-
- ret = (in_be32(&regs->simple_ival) >> (31 - gpio)) & 1;
-
- return ret;
-}
-
-static inline void
-__mpc52xx_simple_gpio_set(struct gpio_chip *gc, unsigned int gpio, int val)
-{
- struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
- struct mpc52xx_gpiochip *chip = container_of(mm_gc,
- struct mpc52xx_gpiochip, mmchip);
- struct mpc52xx_gpio __iomem *regs = mm_gc->regs;
-
- if (val)
- chip->shadow_dvo |= 1 << (31 - gpio);
- else
- chip->shadow_dvo &= ~(1 << (31 - gpio));
- out_be32(&regs->simple_dvo, chip->shadow_dvo);
-}
-
-static void
-mpc52xx_simple_gpio_set(struct gpio_chip *gc, unsigned int gpio, int val)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&gpio_lock, flags);
-
- __mpc52xx_simple_gpio_set(gc, gpio, val);
-
- spin_unlock_irqrestore(&gpio_lock, flags);
-
- pr_debug("%s: gpio: %d val: %d\n", __func__, gpio, val);
-}
-
-static int mpc52xx_simple_gpio_dir_in(struct gpio_chip *gc, unsigned int gpio)
-{
- struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
- struct mpc52xx_gpiochip *chip = container_of(mm_gc,
- struct mpc52xx_gpiochip, mmchip);
- struct mpc52xx_gpio __iomem *regs = mm_gc->regs;
- unsigned long flags;
-
- spin_lock_irqsave(&gpio_lock, flags);
-
- /* set the direction */
- chip->shadow_ddr &= ~(1 << (31 - gpio));
- out_be32(&regs->simple_ddr, chip->shadow_ddr);
-
- /* and enable the pin */
- chip->shadow_gpioe |= 1 << (31 - gpio);
- out_be32(&regs->simple_gpioe, chip->shadow_gpioe);
-
- spin_unlock_irqrestore(&gpio_lock, flags);
-
- return 0;
-}
-
-static int
-mpc52xx_simple_gpio_dir_out(struct gpio_chip *gc, unsigned int gpio, int val)
-{
- struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
- struct mpc52xx_gpiochip *chip = container_of(mm_gc,
- struct mpc52xx_gpiochip, mmchip);
- struct mpc52xx_gpio __iomem *regs = mm_gc->regs;
- unsigned long flags;
-
- spin_lock_irqsave(&gpio_lock, flags);
-
- /* First set initial value */
- __mpc52xx_simple_gpio_set(gc, gpio, val);
-
- /* Then set direction */
- chip->shadow_ddr |= 1 << (31 - gpio);
- out_be32(&regs->simple_ddr, chip->shadow_ddr);
-
- /* Finally enable the pin */
- chip->shadow_gpioe |= 1 << (31 - gpio);
- out_be32(&regs->simple_gpioe, chip->shadow_gpioe);
-
- spin_unlock_irqrestore(&gpio_lock, flags);
-
- pr_debug("%s: gpio: %d val: %d\n", __func__, gpio, val);
-
- return 0;
-}
-
-static int __devinit mpc52xx_simple_gpiochip_probe(struct platform_device *ofdev)
-{
- struct mpc52xx_gpiochip *chip;
- struct gpio_chip *gc;
- struct mpc52xx_gpio __iomem *regs;
- int ret;
-
- chip = kzalloc(sizeof(*chip), GFP_KERNEL);
- if (!chip)
- return -ENOMEM;
-
- gc = &chip->mmchip.gc;
-
- gc->ngpio = 32;
- gc->direction_input = mpc52xx_simple_gpio_dir_in;
- gc->direction_output = mpc52xx_simple_gpio_dir_out;
- gc->get = mpc52xx_simple_gpio_get;
- gc->set = mpc52xx_simple_gpio_set;
-
- ret = of_mm_gpiochip_add(ofdev->dev.of_node, &chip->mmchip);
- if (ret)
- return ret;
-
- regs = chip->mmchip.regs;
- chip->shadow_gpioe = in_be32(&regs->simple_gpioe);
- chip->shadow_ddr = in_be32(&regs->simple_ddr);
- chip->shadow_dvo = in_be32(&regs->simple_dvo);
-
- return 0;
-}
-
-static const struct of_device_id mpc52xx_simple_gpiochip_match[] = {
- {
- .compatible = "fsl,mpc5200-gpio",
- },
- {}
-};
-
-static struct platform_driver mpc52xx_simple_gpiochip_driver = {
- .driver = {
- .name = "gpio",
- .owner = THIS_MODULE,
- .of_match_table = mpc52xx_simple_gpiochip_match,
- },
- .probe = mpc52xx_simple_gpiochip_probe,
- .remove = mpc52xx_gpiochip_remove,
-};
-
-static int __init mpc52xx_gpio_init(void)
-{
- if (platform_driver_register(&mpc52xx_wkup_gpiochip_driver))
- printk(KERN_ERR "Unable to register wakeup GPIO driver\n");
-
- if (platform_driver_register(&mpc52xx_simple_gpiochip_driver))
- printk(KERN_ERR "Unable to register simple GPIO driver\n");
-
- return 0;
-}
-
-
-/* Make sure we get initialised before anyone else tries to use us */
-subsys_initcall(mpc52xx_gpio_init);
-
-/* No exit call at the moment as we cannot unregister of gpio chips */
-
-MODULE_DESCRIPTION("Freescale MPC52xx gpio driver");
-MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de");
-MODULE_LICENSE("GPL v2");
-

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