diff options
| -rw-r--r-- | Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt | 4 | ||||
| -rw-r--r-- | drivers/mmc/host/sdhci-esdhc-imx.c | 6 |
2 files changed, 9 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt b/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt index 9046ba06c47a..415c5575cbf7 100644 --- a/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt +++ b/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt @@ -17,6 +17,10 @@ Optional properties: to select a proper data sampling window in case the clock quality is not good due to signal path is too long on the board. Please refer to eSDHC/uSDHC chapter, DLL (Delay Line) section in RM for details. +- voltage-ranges : Specify the voltage range in case there are software + transparent level shifters on the outputs of the controller. Two cells are + required, first cell specifies minimum slot voltage (mV), second cell + specifies maximum slot voltage (mV). Several ranges could be specified. Examples: diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c index 9cce5cf18ebc..7ee831255f50 100644 --- a/drivers/mmc/host/sdhci-esdhc-imx.c +++ b/drivers/mmc/host/sdhci-esdhc-imx.c @@ -864,6 +864,7 @@ static const struct sdhci_pltfm_data sdhci_esdhc_imx_pdata = { #ifdef CONFIG_OF static int sdhci_esdhc_imx_probe_dt(struct platform_device *pdev, + struct sdhci_host *host, struct esdhc_platform_data *boarddata) { struct device_node *np = pdev->dev.of_node; @@ -900,11 +901,14 @@ sdhci_esdhc_imx_probe_dt(struct platform_device *pdev, if (of_property_read_u32(np, "fsl,delay-line", &boarddata->delay_line)) boarddata->delay_line = 0; + mmc_of_parse_voltage(np, &host->ocr_mask); + return 0; } #else static inline int sdhci_esdhc_imx_probe_dt(struct platform_device *pdev, + struct sdhci_host *host, struct esdhc_platform_data *boarddata) { return -ENODEV; @@ -999,7 +1003,7 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev) host->ioaddr + ESDHC_TUNING_CTRL); boarddata = &imx_data->boarddata; - if (sdhci_esdhc_imx_probe_dt(pdev, boarddata) < 0) { + if (sdhci_esdhc_imx_probe_dt(pdev, host, boarddata) < 0) { if (!host->mmc->parent->platform_data) { dev_err(mmc_dev(host->mmc), "no board data!\n"); err = -EINVAL; |