diff options
Diffstat (limited to 'drivers/staging/cg2900/devices-cg2900-u8500.c')
| -rw-r--r-- | drivers/staging/cg2900/devices-cg2900-u8500.c | 179 |
1 files changed, 0 insertions, 179 deletions
diff --git a/drivers/staging/cg2900/devices-cg2900-u8500.c b/drivers/staging/cg2900/devices-cg2900-u8500.c deleted file mode 100644 index f7ca62d5c68..00000000000 --- a/drivers/staging/cg2900/devices-cg2900-u8500.c +++ /dev/null @@ -1,179 +0,0 @@ -/* - * arch/arm/mach-ux500/devices-cg2900-u8500.c - * - * Copyright (C) ST-Ericsson SA 2010 - * Authors: - * Par-Gunnar Hjalmdahl (par-gunnar.p.hjalmdahl@stericsson.com) for ST-Ericsson. - * Henrik Possung (henrik.possung@stericsson.com) for ST-Ericsson. - * Josef Kindberg (josef.kindberg@stericsson.com) for ST-Ericsson. - * Dariusz Szymszak (dariusz.xd.szymczak@stericsson.com) for ST-Ericsson. - * Kjell Andersson (kjell.k.andersson@stericsson.com) for ST-Ericsson. - * License terms: GNU General Public License (GPL), version 2 - * - * Board specific device support for the Linux Bluetooth HCI H:4 Driver - * for ST-Ericsson connectivity controller. - */ - -#include <asm/byteorder.h> -#include <asm-generic/errno-base.h> -#include <linux/delay.h> -#include <linux/gpio.h> -#include <linux/ioport.h> -#include <linux/kernel.h> -#include <linux/platform_device.h> -#include <linux/sched.h> -#include <linux/string.h> -#include <linux/types.h> -#include <plat/pincfg.h> - -#include "devices-cg2900.h" - -void dcg2900_enable_chip(struct cg2900_chip_dev *dev) -{ - struct dcg2900_info *info = dev->b_data; - - if (info->gbf_gpio == -1) - return; - - /* - * Due to a bug in CG2900 we cannot just set GPIO high to enable - * the chip. We must wait more than 100 msecs before enabling the - * chip. - * - Set PDB to low. - * - Wait for 100 msecs - * - Set PDB to high. - */ - gpio_set_value(info->gbf_gpio, 0); - schedule_timeout_uninterruptible(msecs_to_jiffies( - CHIP_ENABLE_PDB_LOW_TIMEOUT)); - - if (info->pmuen_gpio != -1) { - /* - * We must first set PMU_EN pin high and then wait 300 us before - * setting the GBF_EN high. - */ - gpio_set_value(info->pmuen_gpio, 1); - udelay(CHIP_ENABLE_PMU_EN_TIMEOUT); - } - - gpio_set_value(info->gbf_gpio, 1); -} - -void dcg2900_disable_chip(struct cg2900_chip_dev *dev) -{ - struct dcg2900_info *info = dev->b_data; - - if (info->gbf_gpio != -1) - gpio_set_value(info->gbf_gpio, 0); - if (info->pmuen_gpio != -1) - gpio_set_value(info->pmuen_gpio, 0); -} - -int dcg2900_setup(struct cg2900_chip_dev *dev, - struct dcg2900_info *info) -{ - int err = 0; - struct resource *resource; - const char *gbf_name; - const char *bt_name = NULL; - const char *pmuen_name = NULL; - - resource = platform_get_resource_byname(dev->pdev, IORESOURCE_IO, - "gbf_ena_reset"); - if (!resource) { - dev_err(dev->dev, "GBF GPIO does not exist\n"); - err = -EINVAL; - goto err_handling; - } - - info->gbf_gpio = resource->start; - gbf_name = resource->name; - - resource = platform_get_resource_byname(dev->pdev, IORESOURCE_IO, - "bt_enable"); - /* BT Enable GPIO may not exist */ - if (resource) { - info->bt_gpio = resource->start; - bt_name = resource->name; - } - - resource = platform_get_resource_byname(dev->pdev, IORESOURCE_IO, - "pmu_en"); - /* PMU_EN GPIO may not exist */ - if (resource) { - info->pmuen_gpio = resource->start; - pmuen_name = resource->name; - } - - /* Now setup the GPIOs */ - err = gpio_request(info->gbf_gpio, gbf_name); - if (err < 0) { - dev_err(dev->dev, "gpio_request %s failed with err: %d\n", - gbf_name, err); - goto err_handling; - } - - err = gpio_direction_output(info->gbf_gpio, 0); - if (err < 0) { - dev_err(dev->dev, - "gpio_direction_output %s failed with err: %d\n", - gbf_name, err); - goto err_handling_free_gpio_gbf; - } - - if (!pmuen_name) - goto set_bt_gpio; - - err = gpio_request(info->pmuen_gpio, pmuen_name); - if (err < 0) { - dev_err(dev->dev, "gpio_request %s failed with err: %d\n", - pmuen_name, err); - goto err_handling_free_gpio_gbf; - } - - err = gpio_direction_output(info->pmuen_gpio, 0); - if (err < 0) { - dev_err(dev->dev, - "gpio_direction_output %s failed with err: %d\n", - pmuen_name, err); - goto err_handling_free_gpio_pmuen; - } - -set_bt_gpio: - if (!bt_name) - goto finished; - - err = gpio_request(info->bt_gpio, bt_name); - if (err < 0) { - dev_err(dev->dev, "gpio_request %s failed with err: %d\n", - bt_name, err); - goto err_handling_free_gpio_pmuen; - } - - err = gpio_direction_output(info->bt_gpio, 1); - if (err < 0) { - dev_err(dev->dev, - "gpio_direction_output %s failed with err: %d\n", - bt_name, err); - goto err_handling_free_gpio_bt; - } - -finished: - - return 0; - -err_handling_free_gpio_bt: - gpio_free(info->bt_gpio); - info->bt_gpio = -1; -err_handling_free_gpio_pmuen: - if (info->pmuen_gpio != -1) { - gpio_free(info->pmuen_gpio); - info->pmuen_gpio = -1; - } -err_handling_free_gpio_gbf: - gpio_free(info->gbf_gpio); - info->gbf_gpio = -1; -err_handling: - - return err; -} |