linux-sg2042/drivers/mmc/core/pwrseq.c

51 lines
1.0 KiB
C

/*
* Copyright (C) 2014 Linaro Ltd
*
* Author: Ulf Hansson <ulf.hansson@linaro.org>
*
* License terms: GNU General Public License (GPL) version 2
*
* MMC power sequence management
*/
#include <linux/mmc/host.h>
#include "pwrseq.h"
int mmc_pwrseq_alloc(struct mmc_host *host)
{
return 0;
}
void mmc_pwrseq_pre_power_on(struct mmc_host *host)
{
struct mmc_pwrseq *pwrseq = host->pwrseq;
if (pwrseq && pwrseq->ops && pwrseq->ops->pre_power_on)
pwrseq->ops->pre_power_on(host);
}
void mmc_pwrseq_post_power_on(struct mmc_host *host)
{
struct mmc_pwrseq *pwrseq = host->pwrseq;
if (pwrseq && pwrseq->ops && pwrseq->ops->post_power_on)
pwrseq->ops->post_power_on(host);
}
void mmc_pwrseq_power_off(struct mmc_host *host)
{
struct mmc_pwrseq *pwrseq = host->pwrseq;
if (pwrseq && pwrseq->ops && pwrseq->ops->power_off)
pwrseq->ops->power_off(host);
}
void mmc_pwrseq_free(struct mmc_host *host)
{
struct mmc_pwrseq *pwrseq = host->pwrseq;
if (pwrseq && pwrseq->ops && pwrseq->ops->free)
pwrseq->ops->free(host);
}