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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>
32 lines
577 B
C
32 lines
577 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef MAX1600_H
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#define MAX1600_H
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struct gpio_desc;
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enum {
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MAX1600_GPIO_0VCC = 0,
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MAX1600_GPIO_1VCC,
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MAX1600_GPIO_0VPP,
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MAX1600_GPIO_1VPP,
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MAX1600_GPIO_MAX,
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MAX1600_CHAN_A,
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MAX1600_CHAN_B,
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MAX1600_CODE_LOW,
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MAX1600_CODE_HIGH,
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};
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struct max1600 {
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struct gpio_desc *gpio[MAX1600_GPIO_MAX];
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struct device *dev;
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unsigned int code;
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};
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int max1600_init(struct device *dev, struct max1600 **ptr,
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unsigned int channel, unsigned int code);
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int max1600_configure(struct max1600 *, unsigned int vcc, unsigned int vpp);
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#endif
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