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| Started by | Shawn Lin <shawn.lin@rock-chips.com> |
|---|---|
| First post | 2016-06-08 10:30 +0200 |
| Last post | 2016-06-08 22:50 +0200 |
| Articles | 2 — 2 participants |
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[RFC PATCH 1/4] Documentation: mmc: add description for new caps Shawn Lin <shawn.lin@rock-chips.com> - 2016-06-08 10:30 +0200
Re: [RFC PATCH 1/4] Documentation: mmc: add description for new caps Rob Herring <robh@kernel.org> - 2016-06-08 22:50 +0200
| From | Shawn Lin <shawn.lin@rock-chips.com> |
|---|---|
| Date | 2016-06-08 10:30 +0200 |
| Subject | [RFC PATCH 1/4] Documentation: mmc: add description for new caps |
| Message-ID | <rHH2a-6b9-23@gated-at.bofh.it> |
Let's add some basic description for cap-no-sdio, cap-no-sd and cap-no-mmc. Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com> --- 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 - 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 - mmc-ddr-1_2v: eMMC high-speed DDR mode(1.2V I/O) is supported -- 2.3.7
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| From | Rob Herring <robh@kernel.org> |
|---|---|
| Date | 2016-06-08 22:50 +0200 |
| Message-ID | <rHSAi-4ZD-23@gated-at.bofh.it> |
| In reply to | #1417044 |
On Wed, Jun 08, 2016 at 04:20:21PM +0800, Shawn Lin wrote: > Let's add some basic description for cap-no-sdio, > cap-no-sd and cap-no-mmc. This doesn't say why. If you know what is there, then there's a better way to do this. Look at the child nodes because chances are if you have something soldered down like SDIO or eMMC, then you have a child node already for resets, regulators, etc. Rob
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