Re: [PATCH 1/3] mmc: core: Add DT bindings for SD card's UHS bus speed modes

[Jaehoon Chung <jh80.chung@samsung.com>]

Acked-by: Jaehoon Chung <jh80.chung@samsung.com>

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@linaro.org>
> ---
>  Documentation/devicetree/bindings/mmc/mmc.txt |    5 +++++
>  drivers/mmc/core/host.c                       |   10 ++++++++++
>  2 files changed, 15 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/mmc/mmc.txt b/Documentation/devicetree/bindings/mmc/mmc.txt
> index 458b57f..bd2ce67 100644
> --- a/Documentation/devicetree/bindings/mmc/mmc.txt
> +++ b/Documentation/devicetree/bindings/mmc/mmc.txt
> @@ -26,6 +26,11 @@ Optional properties:
>    this system, even if the controller claims it is.
>  - cap-sd-highspeed: SD high-speed timing is supported
>  - cap-mmc-highspeed: MMC high-speed timing is supported
> +- sd-uhs-sdr12: SD UHS SDR12 speed is supported
> +- sd-uhs-sdr25: SD UHS SDR25 speed is supported
> +- sd-uhs-sdr50: SD UHS SDR50 speed is supported
> +- sd-uhs-sdr104: SD UHS SDR104 speed is supported
> +- sd-uhs-ddr50: SD UHS DDR50 speed is supported
>  - 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
> diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c
> index 49bc403..2644d91 100644
> --- a/drivers/mmc/core/host.c
> +++ b/drivers/mmc/core/host.c
> @@ -419,6 +419,16 @@ int mmc_of_parse(struct mmc_host *host)
>  		host->caps |= MMC_CAP_SD_HIGHSPEED;
>  	if (of_find_property(np, "cap-mmc-highspeed", &len))
>  		host->caps |= MMC_CAP_MMC_HIGHSPEED;
> +	if (of_find_property(np, "sd-uhs-sdr12", &len))
> +		host->caps |= MMC_CAP_UHS_SDR12;
> +	if (of_find_property(np, "sd-uhs-sdr25", &len))
> +		host->caps |= MMC_CAP_UHS_SDR25;
> +	if (of_find_property(np, "sd-uhs-sdr50", &len))
> +		host->caps |= MMC_CAP_UHS_SDR50;
> +	if (of_find_property(np, "sd-uhs-sdr104", &len))
> +		host->caps |= MMC_CAP_UHS_SDR104;
> +	if (of_find_property(np, "sd-uhs-ddr50", &len))
> +		host->caps |= MMC_CAP_UHS_DDR50;
>  	if (of_find_property(np, "cap-power-off-card", &len))
>  		host->caps |= MMC_CAP_POWER_OFF_CARD;
>  	if (of_find_property(np, "cap-sdio-irq", &len))
>