From: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
To: devicetree@vger.kernel.org,
bcm-kernel-feedback-list@broadcom.com,
linux-rpi-kernel@lists.infradead.org,
linux-arm-kernel@lists.infradead.org, linux-mmc@vger.kernel.org,
Adrian Hunter <adrian.hunter@intel.com>
Cc: ulf.hansson@linaro.org, f.fainelli@gmail.com,
phil@raspberrypi.org,
Nicolas Saenz Julienne <nsaenzjulienne@suse.de>,
linux-kernel@vger.kernel.org
Subject: [PATCH 01/10] mmc: sdhci: Add quirk SDHCI_QUIRK2_SET_BUS_VOLTAGE
Date: Fri, 6 Mar 2020 11:38:46 +0100 [thread overview]
Message-ID: <20200306103857.23962-2-nsaenzjulienne@suse.de> (raw)
In-Reply-To: <20200306103857.23962-1-nsaenzjulienne@suse.de>
Adds quirk for controllers whose bus power select register has to be set
even when powering SD cards from a regulator.
Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
---
drivers/mmc/host/sdhci.c | 5 +++++
drivers/mmc/host/sdhci.h | 2 ++
2 files changed, 7 insertions(+)
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index c59566363a42..c7fd87447457 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -1920,6 +1920,11 @@ static void sdhci_set_power_reg(struct sdhci_host *host, unsigned char mode,
mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, vdd);
+ if (host->quirks2 & SDHCI_QUIRK2_SET_BUS_VOLTAGE) {
+ sdhci_set_power_noreg(host, mode, vdd);
+ return;
+ }
+
if (mode != MMC_POWER_OFF)
sdhci_writeb(host, SDHCI_POWER_ON, SDHCI_POWER_CONTROL);
else
diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h
index cac2d97782e6..9531a4e5b148 100644
--- a/drivers/mmc/host/sdhci.h
+++ b/drivers/mmc/host/sdhci.h
@@ -484,6 +484,8 @@ struct sdhci_host {
* block count.
*/
#define SDHCI_QUIRK2_USE_32BIT_BLK_CNT (1<<18)
+/* Set bus voltage even when powering from an external regulator */
+#define SDHCI_QUIRK2_SET_BUS_VOLTAGE (1<<19)
int irq; /* Device IRQ */
void __iomem *ioaddr; /* Mapped address */
--
2.25.1
next prev parent reply other threads:[~2020-03-06 10:39 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-06 10:38 [PATCH 00/10] Raspberry Pi vmmc regulator support Nicolas Saenz Julienne
2020-03-06 10:38 ` Nicolas Saenz Julienne [this message]
2020-03-06 12:34 ` [PATCH 01/10] mmc: sdhci: Add quirk SDHCI_QUIRK2_SET_BUS_VOLTAGE Adrian Hunter
2020-03-06 12:40 ` Nicolas Saenz Julienne
2020-03-06 10:38 ` [PATCH 02/10] mmc: sdhci: milbeaut: Use quirk instead of custom set_power() Nicolas Saenz Julienne
2020-03-06 10:38 ` [PATCH 03/10] mmc: sdhci: arsan: " Nicolas Saenz Julienne
2020-03-06 10:38 ` [PATCH 04/10] mmc: sdhci: at-91: " Nicolas Saenz Julienne
2020-03-06 10:38 ` [PATCH 05/10] mmc: sdhci: pxav3: " Nicolas Saenz Julienne
2020-03-06 10:38 ` [PATCH 06/10] mmc: sdhci: xenon: " Nicolas Saenz Julienne
2020-03-06 10:38 ` [PATCH 07/10] mmc: sdhci: am654: " Nicolas Saenz Julienne
2020-03-06 10:38 ` [PATCH 08/10] mmc: sdhci: Unexport sdhci_set_power_noreg() Nicolas Saenz Julienne
2020-03-06 10:38 ` [PATCH 09/10] mmc: sdhci: iproc: Use SDHCI_QUIRK2_SET_BUS_VOLTAGE on bcm2711 Nicolas Saenz Julienne
2020-03-06 10:38 ` [PATCH 10/10] ARM: dts: bcm2711: Add vmmc regulator in emmc2 Nicolas Saenz Julienne
2020-03-06 11:07 ` Stefan Wahren
2020-03-06 11:35 ` Phil Elwell
2020-03-06 11:37 ` Nicolas Saenz Julienne
2020-03-06 10:46 ` [PATCH 00/10] Raspberry Pi vmmc regulator support Phil Elwell
2020-03-06 10:52 ` Nicolas Saenz Julienne
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