Hello, This series implements support for toggling SD bus signal voltage by GPIO pin. This series has been tested on AST2600-A2 EVB with APLL and 200MHz HCLK clock source with sdr104, sdr50, sdr25, sdr12 and high speed mode. This series were also be tested on AST2600-A1 EVB and AST2500 EVB that don't have the design of signal voltage toggling by GPIO. Please help to review. Regards, Steven Steven Lee (2): dt-bindings: mmc: sdhci-of-aspeed: Add power-gpio and power-switch-gpio mmc: sdhci-of-aspeed: Support toggling SD bus signal voltage by GPIO .../devicetree/bindings/mmc/aspeed,sdhci.yaml | 25 +++ drivers/mmc/host/sdhci-of-aspeed.c | 155 ++++++++++++++++-- 2 files changed, 162 insertions(+), 18 deletions(-) -- 2.17.1