From: Ben Chuang <benchuanggli@gmail.com>
To: adrian.hunter@intel.com, ulf.hansson@linaro.org
Cc: linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org,
ben.chuang@genesyslogic.com.tw, takahiro.akashi@linaro.org,
greg.tu@genesyslogic.com.tw, Ben Chuang <benchuanggli@gmail.com>
Subject: [RFC PATCH V3 14/21] mmc: sdhci: UHS-II support, handle vdd2 in case of power-off
Date: Fri, 10 Jul 2020 19:11:21 +0800 [thread overview]
Message-ID: <20200710111121.29671-1-benchuanggli@gmail.com> (raw)
From: AKASHI Takahiro <takahiro.akashi@linaro.org>
Configure a regulator for VDD2 in case of power-off.
Signed-off-by: Ben Chuang <ben.chuang@genesyslogic.com.tw>
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
---
drivers/mmc/host/sdhci.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 7f2537648a08..d38d734ec83f 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -2333,6 +2333,11 @@ void sdhci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
if (!IS_ERR(mmc->supply.vmmc) &&
ios->power_mode == MMC_POWER_OFF)
mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, 0);
+ if (IS_ENABLED(CONFIG_MMC_SDHCI_UHS2) &&
+ host->mmc->caps & MMC_CAP_UHS2 &&
+ !IS_ERR(mmc->supply.vmmc2) &&
+ ios->power_mode == MMC_POWER_OFF)
+ mmc_regulator_set_ocr(mmc, mmc->supply.vmmc2, 0);
return;
}
--
2.27.0
next reply other threads:[~2020-07-10 11:10 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-10 11:11 Ben Chuang [this message]
2020-08-21 14:09 ` [RFC PATCH V3 14/21] mmc: sdhci: UHS-II support, handle vdd2 in case of power-off Adrian Hunter
2020-09-15 7:00 ` AKASHI Takahiro
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