Acked-by: Jaehoon Chung <jh80.chung@xxxxxxxxxxx> Best Regards, Jaehoon Chung On 02/14/2014 09:27 PM, Ulf Hansson wrote: > 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; > > -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
