diff options
| author | Thomas Gleixner <[email protected]> | 2021-03-14 16:34:35 +0100 |
|---|---|---|
| committer | Thomas Gleixner <[email protected]> | 2021-03-14 16:34:35 +0100 |
| commit | b470ebc9e0e57f53d1db9c49b8a3de4086babd05 (patch) | |
| tree | 95c61291ad5f216967a9be36f19774026ffc88cb /tools/gpio/gpio-utils.c | |
| parent | 4c7bcb51ae25f79e3733982e5d0cd8ce8640ddfc (diff) | |
| parent | 5fbecd2389f48e1415799c63130d0cdce1cf3f60 (diff) | |
Merge tag 'irqchip-fixes-5.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/urgent
Pull irqchip fixes from Marc Zyngier:
- More compatible strings for the Ingenic irqchip (introducing the
JZ4760B SoC)
- Select GENERIC_IRQ_MULTI_HANDLER on the ARM ep93xx platform
- Drop all GENERIC_IRQ_MULTI_HANDLER selections from the irqchip
Kconfig, now relying on the architecture to get it right
- Drop the debugfs_file field from struct irq_domain, now that
debugfs can track things on its own
Diffstat (limited to 'tools/gpio/gpio-utils.c')
| -rw-r--r-- | tools/gpio/gpio-utils.c | 89 |
1 files changed, 0 insertions, 89 deletions
diff --git a/tools/gpio/gpio-utils.c b/tools/gpio/gpio-utils.c index 37187e056c8b..1639b4d832cd 100644 --- a/tools/gpio/gpio-utils.c +++ b/tools/gpio/gpio-utils.c @@ -32,74 +32,6 @@ * following api will request gpio lines, do the operation and then * release these lines. */ -/** - * gpiotools_request_linehandle() - request gpio lines in a gpiochip - * @device_name: The name of gpiochip without prefix "/dev/", - * such as "gpiochip0" - * @lines: An array desired lines, specified by offset - * index for the associated GPIO device. - * @num_lines: The number of lines to request. - * @flag: The new flag for requsted gpio. Reference - * "linux/gpio.h" for the meaning of flag. - * @data: Default value will be set to gpio when flag is - * GPIOHANDLE_REQUEST_OUTPUT. - * @consumer_label: The name of consumer, such as "sysfs", - * "powerkey". This is useful for other users to - * know who is using. - * - * Request gpio lines through the ioctl provided by chardev. User - * could call gpiotools_set_values() and gpiotools_get_values() to - * read and write respectively through the returned fd. Call - * gpiotools_release_linehandle() to release these lines after that. - * - * Return: On success return the fd; - * On failure return the errno. - */ -int gpiotools_request_linehandle(const char *device_name, unsigned int *lines, - unsigned int num_lines, unsigned int flag, - struct gpiohandle_data *data, - const char *consumer_label) -{ - struct gpiohandle_request req; - char *chrdev_name; - int fd; - int i; - int ret; - - ret = asprintf(&chrdev_name, "/dev/%s", device_name); - if (ret < 0) - return -ENOMEM; - - fd = open(chrdev_name, 0); - if (fd == -1) { - ret = -errno; - fprintf(stderr, "Failed to open %s, %s\n", - chrdev_name, strerror(errno)); - goto exit_free_name; - } - - for (i = 0; i < num_lines; i++) - req.lineoffsets[i] = lines[i]; - - req.flags = flag; - strcpy(req.consumer_label, consumer_label); - req.lines = num_lines; - if (flag & GPIOHANDLE_REQUEST_OUTPUT) - memcpy(req.default_values, data, sizeof(req.default_values)); - - ret = ioctl(fd, GPIO_GET_LINEHANDLE_IOCTL, &req); - if (ret == -1) { - ret = -errno; - fprintf(stderr, "Failed to issue %s (%d), %s\n", - "GPIO_GET_LINEHANDLE_IOCTL", ret, strerror(errno)); - } - - if (close(fd) == -1) - perror("Failed to close GPIO character device file"); -exit_free_name: - free(chrdev_name); - return ret < 0 ? ret : req.fd; -} /** * gpiotools_request_line() - request gpio lines in a gpiochip @@ -216,27 +148,6 @@ int gpiotools_get_values(const int fd, struct gpio_v2_line_values *values) } /** - * gpiotools_release_linehandle(): Release the line(s) of gpiochip - * @fd: The fd returned by - * gpiotools_request_linehandle(). - * - * Return: On success return 0; - * On failure return the errno. - */ -int gpiotools_release_linehandle(const int fd) -{ - int ret; - - ret = close(fd); - if (ret == -1) { - perror("Failed to close GPIO LINEHANDLE device file"); - ret = -errno; - } - - return ret; -} - -/** * gpiotools_release_line(): Release the line(s) of gpiochip * @fd: The fd returned by * gpiotools_request_line(). |