mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-18 09:44:18 +08:00
bebdf98a78
Add a library for the MAX1600 PCMCIA power switch device. This is a dual-channel device, controlled via four GPIO signals per channel. Two signals control the Vcc output, and two control the Vpp output. Acked-by: Dominik Brodowski <linux@dominikbrodowski.net> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
33 lines
577 B
C
33 lines
577 B
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef MAX1600_H
|
|
#define MAX1600_H
|
|
|
|
struct gpio_desc;
|
|
|
|
enum {
|
|
MAX1600_GPIO_0VCC = 0,
|
|
MAX1600_GPIO_1VCC,
|
|
MAX1600_GPIO_0VPP,
|
|
MAX1600_GPIO_1VPP,
|
|
MAX1600_GPIO_MAX,
|
|
|
|
MAX1600_CHAN_A,
|
|
MAX1600_CHAN_B,
|
|
|
|
MAX1600_CODE_LOW,
|
|
MAX1600_CODE_HIGH,
|
|
};
|
|
|
|
struct max1600 {
|
|
struct gpio_desc *gpio[MAX1600_GPIO_MAX];
|
|
struct device *dev;
|
|
unsigned int code;
|
|
};
|
|
|
|
int max1600_init(struct device *dev, struct max1600 **ptr,
|
|
unsigned int channel, unsigned int code);
|
|
|
|
int max1600_configure(struct max1600 *, unsigned int vcc, unsigned int vpp);
|
|
|
|
#endif
|