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rkpmic: correct delay

This commit is contained in:
tnn 2019-09-18 15:12:37 +00:00
parent 685333cea5
commit 6b4a7c5abf
1 changed files with 3 additions and 3 deletions
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6
sys/dev/i2c/rkpmic.c
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@ -1,4 +1,4 @@
/* $NetBSD: rkpmic.c,v 1.4 2019/09/18 14:07:38 tnn Exp $ */
/* $NetBSD: rkpmic.c,v 1.5 2019/09/18 15:12:37 tnn Exp $ */
/*-
* Copyright (c) 2018 Jared McNeill <jmcneill@invisible.ca>
@ -27,7 +27,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: rkpmic.c,v 1.4 2019/09/18 14:07:38 tnn Exp $");
__KERNEL_RCSID(0, "$NetBSD: rkpmic.c,v 1.5 2019/09/18 15:12:37 tnn Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@ -281,7 +281,7 @@ rkpmic_todr_gettime(todr_chip_handle_t ch, struct clock_ymdhms *dt)
val = I2C_READ(sc, RTC_CTRL_REG);
I2C_WRITE(sc, RTC_CTRL_REG, val | RTC_CTRL_GET_TIME | RTC_CTRL_READSEL);
delay(1); /* need to wait 1/32768 seconds for shadow regs to latch */
delay(1000000 / 32768); /* wait one cycle for shadow regs to latch */
I2C_WRITE(sc, RTC_CTRL_REG, val | RTC_CTRL_READSEL);
dt->dt_sec = bcdtobin(I2C_READ(sc, SECONDS_REG));
dt->dt_min = bcdtobin(I2C_READ(sc, MINUTES_REG));