diff options
| -rw-r--r-- | Documentation/devicetree/bindings/mmc/mmc.txt | 2 | ||||
| -rw-r--r-- | drivers/mmc/host/sdhci-pltfm.c | 3 |
2 files changed, 5 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/mmc/mmc.txt b/Documentation/devicetree/bindings/mmc/mmc.txt index b96e510979b..a591c6741d7 100644 --- a/Documentation/devicetree/bindings/mmc/mmc.txt +++ b/Documentation/devicetree/bindings/mmc/mmc.txt @@ -21,6 +21,8 @@ Optional properties: - cd-inverted: when present, polarity on the cd gpio line is inverted - wp-inverted: when present, polarity on the wp gpio line is inverted - max-frequency: maximum operating clock frequency +- no-1-8-v: when present, denotes that 1.8v card voltage is not supported on + this system, even if the controller claims it is. Optional SDIO properties: - keep-power-in-suspend: Preserves card power during a suspend/resume cycle diff --git a/drivers/mmc/host/sdhci-pltfm.c b/drivers/mmc/host/sdhci-pltfm.c index c6c3b124359..d4283ef5917 100644 --- a/drivers/mmc/host/sdhci-pltfm.c +++ b/drivers/mmc/host/sdhci-pltfm.c @@ -78,6 +78,9 @@ void sdhci_get_of_property(struct platform_device *pdev) if (of_get_property(np, "broken-cd", NULL)) host->quirks |= SDHCI_QUIRK_BROKEN_CARD_DETECTION; + if (of_get_property(np, "no-1-8-v", NULL)) + host->quirks2 |= SDHCI_QUIRK2_NO_1_8_V; + if (of_device_is_compatible(np, "fsl,p2020-rev1-esdhc")) host->quirks |= SDHCI_QUIRK_BROKEN_DMA; |