Re: [RFC PATCH 1/4] Documentation: mmc: add description for new caps

[Doug Anderson]

Hi,

On Wed, Jun 8, 2016 at 1:20 AM, Shawn Lin <shawn.lin@xxxxxxxxxxxxxx> wrote:
> Let's add some basic description for cap-no-sdio,
> cap-no-sd and cap-no-mmc.
>
> Signed-off-by: Shawn Lin <shawn.lin@xxxxxxxxxxxxxx>
>
> ---
>
>  Documentation/devicetree/bindings/mmc/mmc.txt | 3 +++
>  1 file changed, 3 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/mmc/mmc.txt b/Documentation/devicetree/bindings/mmc/mmc.txt
> index ecc007a..e16d42b 100644
> --- a/Documentation/devicetree/bindings/mmc/mmc.txt
> +++ b/Documentation/devicetree/bindings/mmc/mmc.txt
> @@ -39,6 +39,9 @@ Optional properties:
>  - cap-power-off-card: powering off the card is safe
>  - cap-mmc-hw-reset: eMMC hardware reset is supported
>  - cap-sdio-irq: enable SDIO IRQ signalling on this interface
> +- cap-no-sdio: skip sending sdio cmd during initialization
> +- cap-no-sd: skip sending sd cmd during initialization
> +- cap-no-mmc: skip sending mmc cmd during initialization

In the past it has been determined that the "cap-" prefix is
unnecessary.  Some properties still have "cap-" because of backward
compatibility reasons, but as I understand it new properties shouldn't
start with "cap-".

See <https://lists.ozlabs.org/pipermail/devicetree-discuss/2013-June/034664.html>
for reference.

-Doug