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EDITING: ds1305.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __LINUX_SPI_DS1305_H
#define __LINUX_SPI_DS1305_H

/*
 * One-time configuration for ds1305 and ds1306 RTC chips.
 *
 * Put a pointer to this in spi_board_info.platform_data if you want to
 * be sure that Linux (re)initializes this as needed ... after losing
 * backup power, and potentially on the first boot.
 */
struct ds1305_platform_data {

/* Trickle charge configuration:  it's OK to leave out the MAGIC
	 * bitmask; mask in either DS1 or DS2, and then one of 2K/4k/8K.
	 */
#define DS1305_TRICKLE_MAGIC	0xa0
#define DS1305_TRICKLE_DS2	0x08	/* two diodes */
#define DS1305_TRICKLE_DS1	0x04	/* one diode */
#define DS1305_TRICKLE_2K	0x01	/* 2 KOhm resistance */
#define DS1305_TRICKLE_4K	0x02	/* 4 KOhm resistance */
#define DS1305_TRICKLE_8K	0x03	/* 8 KOhm resistance */
	u8	trickle;

/* set only on ds1306 parts */
	bool	is_ds1306;

/* ds1306 only:  enable 1 Hz output */
	bool	en_1hz;

/* REVISIT:  the driver currently expects nINT0 to be wired
	 * as the alarm IRQ.  ALM1 may also need to be set up ...
	 */
};

#endif /* __LINUX_SPI_DS1305_H */

CANCEL

Name	Type	Size	Modified	Actions
↩ ..	DIR	—	—
📁 offload/	DIR	—	2026-03-10 17:30
📄 ad7877.h	H	835 B	2025-09-28 21:39	EDIT
📄 ads7846.h	H	1.4 KB	2025-09-28 21:39	EDIT
📄 altera.h	H	1.1 KB	2025-09-28 21:39	EDIT
📄 at73c213.h	H	828 B	2025-09-28 21:39	EDIT
📄 corgi_lcd.h	H	421 B	2025-09-28 21:39	EDIT
📄 ds1305.h	H	1.1 KB	2025-09-28 21:39	EDIT
📄 eeprom.h	H	1.2 KB	2025-09-28 21:39	EDIT
📄 flash.h	H	1023 B	2025-09-28 21:39	EDIT
📄 libertas_spi.h	H	700 B	2025-09-28 21:39	EDIT
📄 max7301.h	H	947 B	2025-09-28 21:39	EDIT
📄 mc33880.h	H	196 B	2025-09-28 21:39	EDIT
📄 mmc_spi.h	H	1.3 KB	2025-09-28 21:39	EDIT
📄 mxs-spi.h	H	4.8 KB	2025-09-28 21:39	EDIT
📄 sh_hspi.h	H	161 B	2025-09-28 21:39	EDIT
📄 sh_msiof.h	H	7.1 KB	2025-09-28 21:39	EDIT
📄 spi-fsl-dspi.h	H	560 B	2025-09-28 21:39	EDIT
📄 spi-mem.h	H	15.1 KB	2025-09-28 21:39	EDIT
📄 spi.h	H	62.5 KB	2025-09-28 21:39	EDIT
📄 spi_bitbang.h	H	1.7 KB	2025-09-28 21:39	EDIT
📄 spi_gpio.h	H	741 B	2025-09-28 21:39	EDIT
📄 spi_oc_tiny.h	H	471 B	2025-09-28 21:39	EDIT
📄 tdo24m.h	H	210 B	2025-09-28 21:39	EDIT
📄 tle62x0.h	H	265 B	2025-09-28 21:39	EDIT
📄 xilinx_spi.h	H	682 B	2025-09-28 21:39	EDIT