From 761daa36e2091f3717f8cd9ebaaa0e2f81e9308e Mon Sep 17 00:00:00 2001 From: Dong Aisheng Date: Tue, 12 Jul 2016 15:46:10 +0800 Subject: mmc: sdhci: using common mmc_regulator_set_vqmmc() Switch to use the more robust common mmc_regulator_set_vqmmc() function in MMC core which set the target voltage as close as possible to target voltage. We did not re-factor the whole sdhci_start_signal_voltage_switch() cause we want to keep the original signal switch order between host and card to avoid potential break. Signed-off-by: Dong Aisheng Acked-by: Adrian Hunter Signed-off-by: Ulf Hansson diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index 2ee8bfa..7894652 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -1835,8 +1835,7 @@ static int sdhci_start_signal_voltage_switch(struct mmc_host *mmc, sdhci_writew(host, ctrl, SDHCI_HOST_CONTROL2); if (!IS_ERR(mmc->supply.vqmmc)) { - ret = regulator_set_voltage(mmc->supply.vqmmc, 2700000, - 3600000); + ret = mmc_regulator_set_vqmmc(mmc, ios); if (ret) { pr_warn("%s: Switching to 3.3V signalling voltage failed\n", mmc_hostname(mmc)); @@ -1859,8 +1858,7 @@ static int sdhci_start_signal_voltage_switch(struct mmc_host *mmc, if (!(host->flags & SDHCI_SIGNALING_180)) return -EINVAL; if (!IS_ERR(mmc->supply.vqmmc)) { - ret = regulator_set_voltage(mmc->supply.vqmmc, - 1700000, 1950000); + ret = mmc_regulator_set_vqmmc(mmc, ios); if (ret) { pr_warn("%s: Switching to 1.8V signalling voltage failed\n", mmc_hostname(mmc)); @@ -1892,8 +1890,7 @@ static int sdhci_start_signal_voltage_switch(struct mmc_host *mmc, if (!(host->flags & SDHCI_SIGNALING_120)) return -EINVAL; if (!IS_ERR(mmc->supply.vqmmc)) { - ret = regulator_set_voltage(mmc->supply.vqmmc, 1100000, - 1300000); + ret = mmc_regulator_set_vqmmc(mmc, ios); if (ret) { pr_warn("%s: Switching to 1.2V signalling voltage failed\n", mmc_hostname(mmc)); -- cgit v0.10.2