Provide the option to configure these speed modes per host, for those host driver's that can't distinguish this in runtime. Signed-off-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx> --- Documentation/devicetree/bindings/mmc/mmc.txt | 2 ++ drivers/mmc/core/host.c | 4 ++++ 2 files changed, 6 insertions(+) diff --git a/Documentation/devicetree/bindings/mmc/mmc.txt b/Documentation/devicetree/bindings/mmc/mmc.txt index bd2ce67..519d952 100644 --- a/Documentation/devicetree/bindings/mmc/mmc.txt +++ b/Documentation/devicetree/bindings/mmc/mmc.txt @@ -34,6 +34,8 @@ Optional properties: - cap-power-off-card: powering off the card is safe - cap-sdio-irq: enable SDIO IRQ signalling on this interface - full-pwr-cycle: full power cycle of the card is supported +- mmc-highspeed-ddr-1_8v: eMMC high-speed DDR mode(1.8V I/O) is supported +- mmc-highspeed-ddr-1_2v: eMMC high-speed DDR mode(1.2V I/O) is supported *NOTE* on CD and WP polarity. To use common for all SD/MMC host controllers line polarity properties, we have to fix the meaning of the "normal" and "inverted" diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c index 2644d91..d014127 100644 --- a/drivers/mmc/core/host.c +++ b/drivers/mmc/core/host.c @@ -439,6 +439,10 @@ int mmc_of_parse(struct mmc_host *host) host->pm_caps |= MMC_PM_KEEP_POWER; if (of_find_property(np, "enable-sdio-wakeup", &len)) host->pm_caps |= MMC_PM_WAKE_SDIO_IRQ; + if (of_find_property(np, "mmc-ddr-1_8v", &len)) + host->caps |= MMC_CAP_1_8V_DDR; + if (of_find_property(np, "mmc-ddr-1_2v", &len)) + host->caps |= MMC_CAP_1_2V_DDR; return 0; -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
