diff options
Diffstat (limited to 'target/linux/omap24xx/patches-2.6.38/200-omap-platform.patch')
| -rw-r--r-- | target/linux/omap24xx/patches-2.6.38/200-omap-platform.patch | 896 |
1 files changed, 0 insertions, 896 deletions
diff --git a/target/linux/omap24xx/patches-2.6.38/200-omap-platform.patch b/target/linux/omap24xx/patches-2.6.38/200-omap-platform.patch deleted file mode 100644 index 1a0a3def4..000000000 --- a/target/linux/omap24xx/patches-2.6.38/200-omap-platform.patch +++ /dev/null @@ -1,896 +0,0 @@ ---- /dev/null -+++ b/arch/arm/plat-omap/bootreason.c -@@ -0,0 +1,79 @@ -+/* -+ * linux/arch/arm/plat-omap/bootreason.c -+ * -+ * OMAP Bootreason passing -+ * -+ * Copyright (c) 2004 Nokia -+ * -+ * Written by David Weinehall <david.weinehall@nokia.com> -+ * -+ * 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 SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED -+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF -+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN -+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, -+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT -+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF -+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON -+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF -+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -+ * -+ * 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., -+ * 675 Mass Ave, Cambridge, MA 02139, USA. -+ */ -+#include <linux/proc_fs.h> -+#include <linux/errno.h> -+#include <plat/board.h> -+ -+static char boot_reason[16]; -+ -+static int omap_bootreason_read_proc(char *page, char **start, off_t off, -+ int count, int *eof, void *data) -+{ -+ int len = 0; -+ -+ len += sprintf(page + len, "%s\n", boot_reason); -+ -+ *start = page + off; -+ -+ if (len > off) -+ len -= off; -+ else -+ len = 0; -+ -+ return len < count ? len : count; -+} -+ -+static int __init bootreason_init(void) -+{ -+ const struct omap_boot_reason_config *cfg; -+ int reason_valid = 0; -+ -+ cfg = omap_get_config(OMAP_TAG_BOOT_REASON, struct omap_boot_reason_config); -+ if (cfg != NULL) { -+ strncpy(boot_reason, cfg->reason_str, sizeof(cfg->reason_str)); -+ boot_reason[sizeof(cfg->reason_str)] = 0; -+ reason_valid = 1; -+ } else { -+ /* Read the boot reason from the OMAP registers */ -+ } -+ -+ if (!reason_valid) -+ return -ENOENT; -+ -+ printk(KERN_INFO "Bootup reason: %s\n", boot_reason); -+ -+ if (!create_proc_read_entry("bootreason", S_IRUGO, NULL, -+ omap_bootreason_read_proc, NULL)) -+ return -ENOMEM; -+ -+ return 0; -+} -+ -+late_initcall(bootreason_init); ---- a/arch/arm/plat-omap/common.c -+++ b/arch/arm/plat-omap/common.c -@@ -21,17 +21,89 @@ - #include <plat/vram.h> - #include <plat/dsp.h> - -+#include <asm/setup.h> -+ - - #define NO_LENGTH_CHECK 0xffffffff - - struct omap_board_config_kernel *omap_board_config; - int omap_board_config_size; - -+unsigned char omap_bootloader_tag[1024]; -+int omap_bootloader_tag_len; -+ -+/* used by omap-smp.c and board-4430sdp.c */ -+void __iomem *gic_cpu_base_addr; -+ -+#ifdef CONFIG_OMAP_BOOT_TAG -+ -+static int __init parse_tag_omap(const struct tag *tag) -+{ -+ u32 size = tag->hdr.size - (sizeof(tag->hdr) >> 2); -+ -+ size <<= 2; -+ if (size > sizeof(omap_bootloader_tag)) -+ return -1; -+ -+ memcpy(omap_bootloader_tag, tag->u.omap.data, size); -+ omap_bootloader_tag_len = size; -+ -+ return 0; -+} -+ -+__tagtable(ATAG_BOARD, parse_tag_omap); -+ -+#endif -+ - static const void *get_config(u16 tag, size_t len, int skip, size_t *len_out) - { - struct omap_board_config_kernel *kinfo = NULL; - int i; - -+#ifdef CONFIG_OMAP_BOOT_TAG -+ struct omap_board_config_entry *info = NULL; -+ -+ if (omap_bootloader_tag_len > 4) -+ info = (struct omap_board_config_entry *) omap_bootloader_tag; -+ while (info != NULL) { -+ u8 *next; -+ -+ if (info->tag == tag) { -+ if (skip == 0) -+ break; -+ skip--; -+ } -+ -+ if ((info->len & 0x03) != 0) { -+ /* We bail out to avoid an alignment fault */ -+ printk(KERN_ERR "OMAP peripheral config: Length (%d) not word-aligned (tag %04x)\n", -+ info->len, info->tag); -+ return NULL; -+ } -+ next = (u8 *) info + sizeof(*info) + info->len; -+ if (next >= omap_bootloader_tag + omap_bootloader_tag_len) -+ info = NULL; -+ else -+ info = (struct omap_board_config_entry *) next; -+ } -+ if (info != NULL) { -+ /* Check the length as a lame attempt to check for -+ * binary inconsistency. */ -+ if (len != NO_LENGTH_CHECK) { -+ /* Word-align len */ -+ if (len & 0x03) -+ len = (len + 3) & ~0x03; -+ if (info->len != len) { -+ printk(KERN_ERR "OMAP peripheral config: Length mismatch with tag %x (want %d, got %d)\n", -+ tag, len, info->len); -+ return NULL; -+ } -+ } -+ if (len_out != NULL) -+ *len_out = info->len; -+ return info->data; -+ } -+#endif - /* Try to find the config from the board-specific structures - * in the kernel. */ - for (i = 0; i < omap_board_config_size; i++) { ---- /dev/null -+++ b/arch/arm/plat-omap/component-version.c -@@ -0,0 +1,64 @@ -+/* -+ * linux/arch/arm/plat-omap/component-version.c -+ * -+ * Copyright (C) 2005 Nokia Corporation -+ * Written by Juha Yrjölä <juha.yrjola@nokia.com> -+ * -+ * 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. -+ */ -+ -+#include <linux/init.h> -+#include <linux/module.h> -+#include <linux/err.h> -+#include <linux/proc_fs.h> -+#include <plat/board.h> -+ -+static int component_version_read_proc(char *page, char **start, off_t off, -+ int count, int *eof, void *data) -+{ -+ int len, i; -+ const struct omap_version_config *ver; -+ char *p; -+ -+ i = 0; -+ p = page; -+ while ((ver = omap_get_nr_config(OMAP_TAG_VERSION_STR, -+ struct omap_version_config, i)) != NULL) { -+ p += sprintf(p, "%-12s%s\n", ver->component, ver->version); -+ i++; -+ } -+ -+ len = (p - page) - off; -+ if (len < 0) -+ len = 0; -+ -+ *eof = (len <= count) ? 1 : 0; -+ *start = page + off; -+ -+ return len; -+} -+ -+static int __init component_version_init(void) -+{ -+ if (omap_get_config(OMAP_TAG_VERSION_STR, struct omap_version_config) == NULL) -+ return -ENODEV; -+ if (!create_proc_read_entry("component_version", S_IRUGO, NULL, -+ component_version_read_proc, NULL)) -+ return -ENOMEM; -+ -+ return 0; -+} -+ -+static void __exit component_version_exit(void) -+{ -+ remove_proc_entry("component_version", NULL); -+} -+ -+late_initcall(component_version_init); -+module_exit(component_version_exit); -+ -+MODULE_AUTHOR("Juha Yrjölä <juha.yrjola@nokia.com>"); -+MODULE_DESCRIPTION("Component version driver"); -+MODULE_LICENSE("GPL"); ---- a/arch/arm/plat-omap/Kconfig -+++ b/arch/arm/plat-omap/Kconfig -@@ -79,6 +79,38 @@ config OMAP_RESET_CLOCKS - probably do not want this option enabled until your - device drivers work properly. - -+config OMAP_BOOT_TAG -+ bool "OMAP bootloader information passing" -+ depends on ARCH_OMAP -+ default n -+ help -+ Say Y, if you have a bootloader which passes information -+ about your board and its peripheral configuration. -+ -+config OMAP_BOOT_REASON -+ bool "Support for boot reason" -+ depends on OMAP_BOOT_TAG -+ default n -+ help -+ Say Y, if you want to have a procfs entry for reading the boot -+ reason in user-space. -+ -+config OMAP_COMPONENT_VERSION -+ bool "Support for component version display" -+ depends on OMAP_BOOT_TAG && PROC_FS -+ default n -+ help -+ Say Y, if you want to have a procfs entry for reading component -+ versions (supplied by the bootloader) in user-space. -+ -+config OMAP_GPIO_SWITCH -+ bool "GPIO switch support" -+ help -+ Say Y, if you want to have support for reporting of GPIO -+ switches (e.g. cover switches) via sysfs. Your bootloader has -+ to provide information about the switches to the kernel via the -+ ATAG_BOARD mechanism if they're not defined by the board config. -+ - config OMAP_MUX - bool "OMAP multiplexing support" - depends on ARCH_OMAP ---- a/arch/arm/plat-omap/Makefile -+++ b/arch/arm/plat-omap/Makefile -@@ -23,6 +23,9 @@ obj-$(CONFIG_OMAP_IOMMU_DEBUG) += iommu- - - obj-$(CONFIG_CPU_FREQ) += cpu-omap.o - obj-$(CONFIG_OMAP_DM_TIMER) += dmtimer.o -+obj-$(CONFIG_OMAP_BOOT_REASON) += bootreason.o -+obj-$(CONFIG_OMAP_COMPONENT_VERSION) += component-version.o -+obj-$(CONFIG_OMAP_GPIO_SWITCH) += gpio-switch.o - obj-$(CONFIG_OMAP_DEBUG_DEVICES) += debug-devices.o - obj-$(CONFIG_OMAP_DEBUG_LEDS) += debug-leds.o - i2c-omap-$(CONFIG_I2C_OMAP) := i2c.o ---- a/arch/arm/include/asm/setup.h -+++ b/arch/arm/include/asm/setup.h -@@ -136,6 +136,13 @@ struct tag_acorn { - __u8 adfsdrives; - }; - -+/* TI OMAP specific information */ -+#define ATAG_BOARD 0x414f4d50 -+ -+struct tag_omap { -+ u8 data[0]; -+}; -+ - /* footbridge memory clock, see arch/arm/mach-footbridge/arch.c */ - #define ATAG_MEMCLK 0x41000402 - -@@ -162,6 +169,11 @@ struct tag { - struct tag_acorn acorn; - - /* -+ * OMAP specific -+ */ -+ struct tag_omap omap; -+ -+ /* - * DC21285 specific - */ - struct tag_memclk memclk; ---- /dev/null -+++ b/arch/arm/plat-omap/gpio-switch.c -@@ -0,0 +1,554 @@ -+/* -+ * linux/arch/arm/plat-omap/gpio-switch.c -+ * -+ * Copyright (C) 2004-2006 Nokia Corporation -+ * Written by Juha Yrjölä <juha.yrjola@nokia.com> -+ * and Paul Mundt <paul.mundt@nokia.com> -+ * -+ * 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. -+ */ -+ -+#include <linux/sched.h> -+#include <linux/init.h> -+#include <linux/list.h> -+#include <linux/irq.h> -+#include <linux/interrupt.h> -+#include <linux/module.h> -+#include <linux/platform_device.h> -+#include <linux/timer.h> -+#include <linux/err.h> -+#include <linux/slab.h> -+#include <linux/gpio.h> -+#include <plat/hardware.h> -+#include <plat/irqs.h> -+#include <plat/mux.h> -+#include <plat/board.h> -+#include <plat/gpio-switch.h> -+ -+struct gpio_switch { -+ char name[14]; -+ u16 gpio; -+ unsigned flags:4; -+ unsigned type:4; -+ unsigned state:1; -+ unsigned both_edges:1; -+ -+ u16 debounce_rising; -+ u16 debounce_falling; -+ -+ void (* notify)(void *data, int state); -+ void *notify_data; -+ -+ struct work_struct work; -+ struct timer_list timer; -+ struct platform_device pdev; -+ -+ struct list_head node; -+}; -+ -+static LIST_HEAD(gpio_switches); -+static struct platform_device *gpio_sw_platform_dev; -+static struct platform_driver gpio_sw_driver; -+ -+static const struct omap_gpio_switch *board_gpio_sw_table; -+static int board_gpio_sw_count; -+ -+static const char *cover_str[2] = { "open", "closed" }; -+static const char *connection_str[2] = { "disconnected", "connected" }; -+static const char *activity_str[2] = { "inactive", "active" }; -+ -+/* -+ * GPIO switch state default debounce delay in ms -+ */ -+#define OMAP_GPIO_SW_DEFAULT_DEBOUNCE 10 -+ -+static const char **get_sw_str(struct gpio_switch *sw) -+{ -+ switch (sw->type) { -+ case OMAP_GPIO_SWITCH_TYPE_COVER: -+ return cover_str; -+ case OMAP_GPIO_SWITCH_TYPE_CONNECTION: -+ return connection_str; -+ case OMAP_GPIO_SWITCH_TYPE_ACTIVITY: -+ return activity_str; -+ default: -+ BUG(); -+ return NULL; -+ } -+} -+ -+static const char *get_sw_type(struct gpio_switch *sw) -+{ -+ switch (sw->type) { -+ case OMAP_GPIO_SWITCH_TYPE_COVER: -+ return "cover"; -+ case OMAP_GPIO_SWITCH_TYPE_CONNECTION: -+ return "connection"; -+ case OMAP_GPIO_SWITCH_TYPE_ACTIVITY: -+ return "activity"; -+ default: -+ BUG(); -+ return NULL; -+ } -+} -+ -+static void print_sw_state(struct gpio_switch *sw, int state) -+{ -+ const char **str; -+ -+ str = get_sw_str(sw); -+ if (str != NULL) -+ printk(KERN_INFO "%s (GPIO %d) is now %s\n", sw->name, sw->gpio, str[state]); -+} -+ -+static int gpio_sw_get_state(struct gpio_switch *sw) -+{ -+ int state; -+ -+ state = gpio_get_value(sw->gpio); -+ if (sw->flags & OMAP_GPIO_SWITCH_FLAG_INVERTED) -+ state = !state; -+ -+ return state; -+} -+ -+static ssize_t gpio_sw_state_store(struct device *dev, -+ struct device_attribute *attr, -+ const char *buf, -+ size_t count) -+{ -+ struct gpio_switch *sw = dev_get_drvdata(dev); -+ const char **str; -+ char state[16]; -+ int enable; -+ -+ if (!(sw->flags & OMAP_GPIO_SWITCH_FLAG_OUTPUT)) -+ return -EPERM; -+ -+ if (sscanf(buf, "%15s", state) != 1) -+ return -EINVAL; -+ -+ str = get_sw_str(sw); -+ if (strcmp(state, str[0]) == 0) -+ sw->state = enable = 0; -+ else if (strcmp(state, str[1]) == 0) -+ sw->state = enable = 1; -+ else -+ return -EINVAL; -+ -+ if (sw->flags & OMAP_GPIO_SWITCH_FLAG_INVERTED) -+ enable = !enable; -+ gpio_set_value(sw->gpio, enable); -+ -+ return count; -+} -+ -+static ssize_t gpio_sw_state_show(struct device *dev, -+ struct device_attribute *attr, -+ char *buf) -+{ -+ struct gpio_switch *sw = dev_get_drvdata(dev); -+ const char **str; -+ -+ str = get_sw_str(sw); -+ return sprintf(buf, "%s\n", str[sw->state]); -+} -+ -+static DEVICE_ATTR(state, S_IRUGO | S_IWUSR, gpio_sw_state_show, -+ gpio_sw_state_store); -+ -+static ssize_t gpio_sw_type_show(struct device *dev, -+ struct device_attribute *attr, -+ char *buf) -+{ -+ struct gpio_switch *sw = dev_get_drvdata(dev); -+ -+ return sprintf(buf, "%s\n", get_sw_type(sw)); -+} -+ -+static DEVICE_ATTR(type, S_IRUGO, gpio_sw_type_show, NULL); -+ -+static ssize_t gpio_sw_direction_show(struct device *dev, -+ struct device_attribute *attr, -+ char *buf) -+{ -+ struct gpio_switch *sw = dev_get_drvdata(dev); -+ int is_output; -+ -+ is_output = sw->flags & OMAP_GPIO_SWITCH_FLAG_OUTPUT; -+ return sprintf(buf, "%s\n", is_output ? "output" : "input"); -+} -+ -+static DEVICE_ATTR(direction, S_IRUGO, gpio_sw_direction_show, NULL); -+ -+ -+static irqreturn_t gpio_sw_irq_handler(int irq, void *arg) -+{ -+ struct gpio_switch *sw = arg; -+ unsigned long timeout; -+ int state; -+ -+ if (!sw->both_edges) { -+ if (gpio_get_value(sw->gpio)) -+ set_irq_type(OMAP_GPIO_IRQ(sw->gpio), IRQ_TYPE_EDGE_FALLING); -+ else -+ set_irq_type(OMAP_GPIO_IRQ(sw->gpio), IRQ_TYPE_EDGE_RISING); -+ } -+ -+ state = gpio_sw_get_state(sw); -+ if (sw->state == state) -+ return IRQ_HANDLED; -+ -+ if (state) -+ timeout = sw->debounce_rising; -+ else -+ timeout = sw->debounce_falling; -+ if (!timeout) -+ schedule_work(&sw->work); -+ else -+ mod_timer(&sw->timer, jiffies + msecs_to_jiffies(timeout)); -+ -+ return IRQ_HANDLED; -+} -+ -+static void gpio_sw_timer(unsigned long arg) -+{ -+ struct gpio_switch *sw = (struct gpio_switch *) arg; -+ -+ schedule_work(&sw->work); -+} -+ -+static void gpio_sw_handler(struct work_struct *work) -+{ -+ struct gpio_switch *sw = container_of(work, struct gpio_switch, work); -+ int state; -+ -+ state = gpio_sw_get_state(sw); -+ if (sw->state == state) -+ return; -+ -+ sw->state = state; -+ if (sw->notify != NULL) -+ sw->notify(sw->notify_data, state); -+ sysfs_notify(&sw->pdev.dev.kobj, NULL, "state"); -+ print_sw_state(sw, state); -+} -+ -+static int __init can_do_both_edges(struct gpio_switch *sw) -+{ -+ if (!cpu_class_is_omap1()) -+ return 1; -+ if (OMAP_GPIO_IS_MPUIO(sw->gpio)) -+ return 0; -+ else -+ return 1; -+} -+ -+static void gpio_sw_release(struct device *dev) -+{ -+} -+ -+static int __init new_switch(struct gpio_switch *sw) -+{ -+ int r, direction, trigger; -+ -+ switch (sw->type) { -+ case OMAP_GPIO_SWITCH_TYPE_COVER: -+ case OMAP_GPIO_SWITCH_TYPE_CONNECTION: -+ case OMAP_GPIO_SWITCH_TYPE_ACTIVITY: -+ break; -+ default: -+ printk(KERN_ERR "invalid GPIO switch type: %d\n", sw->type); -+ return -EINVAL; -+ } -+ -+ sw->pdev.name = sw->name; -+ sw->pdev.id = -1; -+ -+ sw->pdev.dev.parent = &gpio_sw_platform_dev->dev; -+ sw->pdev.dev.driver = &gpio_sw_driver.driver; -+ sw->pdev.dev.release = gpio_sw_release; -+ -+ r = platform_device_register(&sw->pdev); -+ if (r) { -+ printk(KERN_ERR "gpio-switch: platform device registration " -+ "failed for %s", sw->name); -+ return r; -+ } -+ dev_set_drvdata(&sw->pdev.dev, sw); -+ -+ r = gpio_request(sw->gpio, "gpio-switch"); -+ if (r < 0) { -+ platform_device_unregister(&sw->pdev); -+ return r; -+ } -+ -+ /* input: 1, output: 0 */ -+ direction = !(sw->flags & OMAP_GPIO_SWITCH_FLAG_OUTPUT); -+ if (direction) -+ gpio_direction_input(sw->gpio); -+ else -+ gpio_direction_output(sw->gpio, 0); -+ -+ sw->state = gpio_sw_get_state(sw); -+ -+ r = 0; -+ r |= device_create_file(&sw->pdev.dev, &dev_attr_state); -+ r |= device_create_file(&sw->pdev.dev, &dev_attr_type); -+ r |= device_create_file(&sw->pdev.dev, &dev_attr_direction); -+ if (r) -+ printk(KERN_ERR "gpio-switch: attribute file creation " -+ "failed for %s\n", sw->name); -+ -+ if (!direction) -+ return 0; -+ -+ if (can_do_both_edges(sw)) { -+ trigger = IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING; -+ sw->both_edges = 1; -+ } else { -+ if (gpio_get_value(sw->gpio)) -+ trigger = IRQF_TRIGGER_FALLING; -+ else -+ trigger = IRQF_TRIGGER_RISING; -+ } -+ r = request_irq(OMAP_GPIO_IRQ(sw->gpio), gpio_sw_irq_handler, -+ IRQF_SHARED | trigger, sw->name, sw); -+ if (r < 0) { -+ printk(KERN_ERR "gpio-switch: request_irq() failed " -+ "for GPIO %d\n", sw->gpio); -+ platform_device_unregister(&sw->pdev); -+ gpio_free(sw->gpio); -+ return r; -+ } -+ -+ INIT_WORK(&sw->work, gpio_sw_handler); -+ init_timer(&sw->timer); -+ -+ sw->timer.function = gpio_sw_timer; -+ sw->timer.data = (unsigned long)sw; -+ -+ list_add(&sw->node, &gpio_switches); -+ -+ return 0; -+} -+ -+static int __init add_atag_switches(void) -+{ -+ const struct omap_gpio_switch_config *cfg; -+ struct gpio_switch *sw; -+ int i, r; -+ -+ for (i = 0; ; i++) { -+ cfg = omap_get_nr_config(OMAP_TAG_GPIO_SWITCH, -+ struct omap_gpio_switch_config, i); -+ if (cfg == NULL) -+ break; -+ sw = kzalloc(sizeof(*sw), GFP_KERNEL); -+ if (sw == NULL) { -+ printk(KERN_ERR "gpio-switch: kmalloc failed\n"); -+ return -ENOMEM; -+ } -+ strncpy(sw->name, cfg->name, sizeof(cfg->name)); -+ sw->gpio = cfg->gpio; -+ sw->flags = cfg->flags; -+ sw->type = cfg->type; -+ sw->debounce_rising = OMAP_GPIO_SW_DEFAULT_DEBOUNCE; -+ sw->debounce_falling = OMAP_GPIO_SW_DEFAULT_DEBOUNCE; -+ if ((r = new_switch(sw)) < 0) { -+ kfree(sw); -+ return r; -+ } -+ } -+ return 0; -+} -+ -+static struct gpio_switch * __init find_switch(int gpio, const char *name) -+{ -+ struct gpio_switch *sw; -+ -+ list_for_each_entry(sw, &gpio_switches, node) { -+ if ((gpio < 0 || sw->gpio != gpio) && -+ (name == NULL || strcmp(sw->name, name) != 0)) -+ continue; -+ -+ if (gpio < 0 || name == NULL) -+ goto no_check; -+ -+ if (strcmp(sw->name, name) != 0) -+ printk("gpio-switch: name mismatch for %d (%s, %s)\n", -+ gpio, name, sw->name); -+ else if (sw->gpio != gpio) -+ printk("gpio-switch: GPIO mismatch for %s (%d, %d)\n", -+ name, gpio, sw->gpio); -+no_check: -+ return sw; -+ } -+ return NULL; -+} -+ -+static int __init add_board_switches(void) -+{ -+ int i; -+ -+ for (i = 0; i < board_gpio_sw_count; i++) { -+ const struct omap_gpio_switch *cfg; -+ struct gpio_switch *sw; -+ int r; -+ -+ cfg = board_gpio_sw_table + i; -+ if (strlen(cfg->name) > sizeof(sw->name) - 1) -+ return -EINVAL; -+ /* Check whether we only update an existing switch -+ * or add a new switch. */ -+ sw = find_switch(cfg->gpio, cfg->name); -+ if (sw != NULL) { -+ sw->debounce_rising = cfg->debounce_rising; -+ sw->debounce_falling = cfg->debounce_falling; -+ sw->notify = cfg->notify; -+ sw->notify_data = cfg->notify_data; -+ continue; -+ } else { -+ if (cfg->gpio < 0 || cfg->name == NULL) { -+ printk("gpio-switch: required switch not " -+ "found (%d, %s)\n", cfg->gpio, -+ cfg->name); -+ continue; -+ } -+ } -+ sw = kzalloc(sizeof(*sw), GFP_KERNEL); -+ if (sw == NULL) { -+ printk(KERN_ERR "gpio-switch: kmalloc failed\n"); -+ return -ENOMEM; -+ } -+ strlcpy(sw->name, cfg->name, sizeof(sw->name)); -+ sw->gpio = cfg->gpio; -+ sw->flags = cfg->flags; -+ sw->type = cfg->type; -+ sw->debounce_rising = cfg->debounce_rising; -+ sw->debounce_falling = cfg->debounce_falling; -+ sw->notify = cfg->notify; -+ sw->notify_data = cfg->notify_data; -+ if ((r = new_switch(sw)) < 0) { -+ kfree(sw); -+ return r; -+ } -+ } -+ return 0; -+} -+ -+static void gpio_sw_cleanup(void) -+{ -+ struct gpio_switch *sw = NULL, *old = NULL; -+ -+ list_for_each_entry(sw, &gpio_switches, node) { -+ if (old != NULL) -+ kfree(old); -+ flush_scheduled_work(); -+ del_timer_sync(&sw->timer); -+ -+ free_irq(OMAP_GPIO_IRQ(sw->gpio), sw); -+ -+ device_remove_file(&sw->pdev.dev, &dev_attr_state); -+ device_remove_file(&sw->pdev.dev, &dev_attr_type); -+ device_remove_file(&sw->pdev.dev, &dev_attr_direction); -+ -+ platform_device_unregister(&sw->pdev); -+ gpio_free(sw->gpio); -+ old = sw; -+ } -+ kfree(old); -+} -+ -+static void __init report_initial_state(void) -+{ -+ struct gpio_switch *sw; -+ -+ list_for_each_entry(sw, &gpio_switches, node) { -+ int state; -+ -+ state = gpio_get_value(sw->gpio); -+ if (sw->flags & OMAP_GPIO_SWITCH_FLAG_INVERTED) -+ state = !state; -+ if (sw->notify != NULL) -+ sw->notify(sw->notify_data, state); -+ print_sw_state(sw, state); -+ } -+} -+ -+static int gpio_sw_remove(struct platform_device *dev) -+{ -+ return 0; -+} -+ -+static struct platform_driver gpio_sw_driver = { -+ .remove = gpio_sw_remove, -+ .driver = { -+ .name = "gpio-switch", -+ }, -+}; -+ -+void __init omap_register_gpio_switches(const struct omap_gpio_switch *tbl, -+ int count) -+{ -+ BUG_ON(board_gpio_sw_table != NULL); -+ -+ board_gpio_sw_table = tbl; -+ board_gpio_sw_count = count; -+} -+ -+static int __init gpio_sw_init(void) -+{ -+ int r; -+ -+ printk(KERN_INFO "OMAP GPIO switch handler initializing\n"); -+ -+ r = platform_driver_register(&gpio_sw_driver); -+ if (r) -+ return r; -+ -+ gpio_sw_platform_dev = platform_device_register_simple("gpio-switch", -+ -1, NULL, 0); -+ if (IS_ERR(gpio_sw_platform_dev)) { -+ r = PTR_ERR(gpio_sw_platform_dev); -+ goto err1; -+ } -+ -+ r = add_atag_switches(); -+ if (r < 0) -+ goto err2; -+ -+ r = add_board_switches(); -+ if (r < 0) -+ goto err2; -+ -+ report_initial_state(); -+ -+ return 0; -+err2: -+ gpio_sw_cleanup(); -+ platform_device_unregister(gpio_sw_platform_dev); -+err1: -+ platform_driver_unregister(&gpio_sw_driver); -+ return r; -+} -+ -+static void __exit gpio_sw_exit(void) -+{ -+ gpio_sw_cleanup(); -+ platform_device_unregister(gpio_sw_platform_dev); -+ platform_driver_unregister(&gpio_sw_driver); -+} -+ -+#ifndef MODULE -+late_initcall(gpio_sw_init); -+#else -+module_init(gpio_sw_init); -+#endif -+module_exit(gpio_sw_exit); -+ -+MODULE_AUTHOR("Juha Yrjölä <juha.yrjola@nokia.com>, Paul Mundt <paul.mundt@nokia.com"); -+MODULE_DESCRIPTION("GPIO switch driver"); -+MODULE_LICENSE("GPL"); ---- a/arch/arm/plat-omap/include/plat/board.h -+++ b/arch/arm/plat-omap/include/plat/board.h -@@ -151,6 +151,14 @@ struct omap_board_config_kernel { - const void *data; - }; - -+struct omap_gpio_switch_config { -+ char name[12]; -+ u16 gpio; -+ int flags:4; -+ int type:4; -+ int key_code:24; /* Linux key code */ -+}; -+ - extern const void *__omap_get_config(u16 tag, size_t len, int nr); - - #define omap_get_config(tag, type) \ |