diff options
Diffstat (limited to 'kernel/Documentation/devicetree/bindings/mmc/mmc.txt')
| -rw-r--r-- | kernel/Documentation/devicetree/bindings/mmc/mmc.txt | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/kernel/Documentation/devicetree/bindings/mmc/mmc.txt b/kernel/Documentation/devicetree/bindings/mmc/mmc.txt index 438899e88..ed23b9bed 100644 --- a/kernel/Documentation/devicetree/bindings/mmc/mmc.txt +++ b/kernel/Documentation/devicetree/bindings/mmc/mmc.txt @@ -21,6 +21,11 @@ Optional properties: below for the case, when a GPIO is used for the CD line - wp-inverted: when present, polarity on the WP line is inverted. See the note below for the case, when a GPIO is used for the WP line +- disable-wp: When set no physical WP line is present. This property should + only be specified when the controller has a dedicated write-protect + detection logic. If a GPIO is always used for the write-protect detection + logic it is sufficient to not specify wp-gpios property in the absence of a WP + line. - max-frequency: maximum operating clock frequency - no-1-8-v: when present, denotes that 1.8v card voltage is not supported on this system, even if the controller claims it is. @@ -32,6 +37,7 @@ Optional properties: - 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-mmc-hw-reset: eMMC hardware reset is supported - cap-sdio-irq: enable SDIO IRQ signalling on this interface - full-pwr-cycle: full power cycle of the card is supported - mmc-ddr-1_8v: eMMC high-speed DDR mode(1.8V I/O) is supported @@ -62,7 +68,8 @@ polarity is in effect. Optional SDIO properties: - keep-power-in-suspend: Preserves card power during a suspend/resume cycle -- enable-sdio-wakeup: Enables wake up of host system on SDIO IRQ assertion +- wakeup-source: Enables wake up of host system on SDIO IRQ assertion + (Legacy property supported: "enable-sdio-wakeup") MMC power sequences: @@ -112,7 +119,7 @@ sdhci@ab000000 { wp-gpios = <&gpio 70 0>; max-frequency = <50000000>; keep-power-in-suspend; - enable-sdio-wakeup; + wakeup-source; mmc-pwrseq = <&sdhci0_pwrseq> } |