diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-19 13:35:07 -0700 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-19 13:35:07 -0700 |
commit | e4e47eb15b7884963efe7f98231009c5770a2c3d (patch) | |
tree | ebd3536a3aa728089168f072c88858578535046d /arch/arm/mach-msm/gpio.c | |
parent | 711f77f53c5ff6aa61dbe8e5f518e50d6306e89d (diff) | |
parent | 7b52161d14fa8a22a2387f4aa2fb7b854587830d (diff) |
Merge branch 'msm-core' of git://codeaurora.org/quic/kernel/dwalker/linux-msm
* 'msm-core' of git://codeaurora.org/quic/kernel/dwalker/linux-msm: (72 commits)
msm: 7x30 Kconfig and makefile changes
msm: clock support for the MSM7x30 CPU.
msm: physical offset for MSM7X30
msm: io: add io support for 7x30
msm: Add extern for 7x30 clock list.
msm: dma: add 7x30 security domain abstraction
msm: update basic board layout for MSM7x30
msm: add devices-msm7x30.c
msm: add msm_iomap-7x30.h for MSM7x30 support
msm: irqs: add irqs-7x30.h for MSM7x30 support
msm: 8x50 Kconfig changes
msm: physical offset for QSD8x50
msm: io: add io support for 8x50
msm: add extern for 8x50 clock list.
msm: add devices-qsd8x50.c
msm: update basic board layout for QSD8x50
msm: add msm_iomap-8x50.h for QSD8x50 support
msm: irqs: add irqs-8x50.h for QSD8x50 support
msm: timer: allow MSM_DGT_BASE to be overriden
msm: add Qualcomm 7x30 interrupt controller driver.
...
Diffstat (limited to 'arch/arm/mach-msm/gpio.c')
-rw-r--r-- | arch/arm/mach-msm/gpio.c | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/arch/arm/mach-msm/gpio.c b/arch/arm/mach-msm/gpio.c new file mode 100644 index 000000000000..bc32c845c7b0 --- /dev/null +++ b/arch/arm/mach-msm/gpio.c @@ -0,0 +1,85 @@ +/* linux/arch/arm/mach-msm/gpio.c + * + * Copyright (C) 2007 Google, Inc. + * Copyright (c) 2009, Code Aurora Forum. All rights reserved. + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * 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. + * + */ + +#include <linux/module.h> +#include <mach/gpio.h> +#include "proc_comm.h" + +int gpio_tlmm_config(unsigned config, unsigned disable) +{ + return msm_proc_comm(PCOM_RPC_GPIO_TLMM_CONFIG_EX, &config, &disable); +} +EXPORT_SYMBOL(gpio_tlmm_config); + +int msm_gpios_enable(const struct msm_gpio *table, int size) +{ + int rc; + int i; + const struct msm_gpio *g; + for (i = 0; i < size; i++) { + g = table + i; + rc = gpio_tlmm_config(g->gpio_cfg, GPIO_ENABLE); + if (rc) { + pr_err("gpio_tlmm_config(0x%08x, GPIO_ENABLE)" + " <%s> failed: %d\n", + g->gpio_cfg, g->label ?: "?", rc); + pr_err("pin %d func %d dir %d pull %d drvstr %d\n", + GPIO_PIN(g->gpio_cfg), GPIO_FUNC(g->gpio_cfg), + GPIO_DIR(g->gpio_cfg), GPIO_PULL(g->gpio_cfg), + GPIO_DRVSTR(g->gpio_cfg)); + goto err; + } + } + return 0; +err: + msm_gpios_disable(table, i); + return rc; +} +EXPORT_SYMBOL(msm_gpios_enable); + +void msm_gpios_disable(const struct msm_gpio *table, int size) +{ + int rc; + int i; + const struct msm_gpio *g; + for (i = size-1; i >= 0; i--) { + g = table + i; + rc = gpio_tlmm_config(g->gpio_cfg, GPIO_DISABLE); + if (rc) { + pr_err("gpio_tlmm_config(0x%08x, GPIO_DISABLE)" + " <%s> failed: %d\n", + g->gpio_cfg, g->label ?: "?", rc); + pr_err("pin %d func %d dir %d pull %d drvstr %d\n", + GPIO_PIN(g->gpio_cfg), GPIO_FUNC(g->gpio_cfg), + GPIO_DIR(g->gpio_cfg), GPIO_PULL(g->gpio_cfg), + GPIO_DRVSTR(g->gpio_cfg)); + } + } +} +EXPORT_SYMBOL(msm_gpios_disable); + +int msm_gpios_request_enable(const struct msm_gpio *table, int size) +{ + int rc = msm_gpios_enable(table, size); + return rc; +} +EXPORT_SYMBOL(msm_gpios_request_enable); + +void msm_gpios_disable_free(const struct msm_gpio *table, int size) +{ + msm_gpios_disable(table, size); +} +EXPORT_SYMBOL(msm_gpios_disable_free); |