| Message ID | 1470533644-16357-1-git-send-email-shawn.lin@rock-chips.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Sun, Aug 07, 2016 at 09:34:04AM +0800, Shawn Lin wrote: > rockchip,power-invert is used for rockchip to introduce the flag > DW_MMC_CARD_PWR_INVERT from DT which should make the power control > of dw_mmc more flexible according to different hw design. > > Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com> > > --- > > Changes in v2: None > > Documentation/devicetree/bindings/mmc/rockchip-dw-mshc.txt | 6 ++++++ > 1 file changed, 6 insertions(+) Acked-by: Rob Herring <robh@kernel.org> -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/Documentation/devicetree/bindings/mmc/rockchip-dw-mshc.txt b/Documentation/devicetree/bindings/mmc/rockchip-dw-mshc.txt index 07184e8..5640659 100644 --- a/Documentation/devicetree/bindings/mmc/rockchip-dw-mshc.txt +++ b/Documentation/devicetree/bindings/mmc/rockchip-dw-mshc.txt @@ -30,6 +30,12 @@ Optional Properties: probing, low speeds or in case where all phases work at tuning time. If not specified 0 deg will be used. +* rockchip,power-invert: Invert the power control of PWREN register. If adding + it, the card should be in power-on state when the power io outputs high level + voltage, and it should be in power-off state when outputing low level voltage. + otherwise the behaviour of power control should be the opposite way which is + the default policy of dw mshc. + Example: rkdwmmc0@12200000 {
rockchip,power-invert is used for rockchip to introduce the flag DW_MMC_CARD_PWR_INVERT from DT which should make the power control of dw_mmc more flexible according to different hw design. Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com> --- Changes in v2: None Documentation/devicetree/bindings/mmc/rockchip-dw-mshc.txt | 6 ++++++ 1 file changed, 6 insertions(+)