Messages in this thread | | | Subject | Re: [PATCH 2/2] sdhci-of-arasan: Add quirk and device tree parameter to fake CD bit | From | Lars-Peter Clausen <> | Date | Thu, 25 Aug 2016 12:37:46 +0200 |
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On 08/25/2016 01:23 AM, Zach Brown wrote: > The sdhci controller on xilinx zynq devices will not function unless > the cd bit is provided. http://www.xilinx.com/support/answers/61064.html > In cases where it is impossible to provide the cd bit in hardware, > setting the controller to test mode and then setting inserted to true > will get the controller to function with out the cd bit. > > The device property "fake-cd" will let the arasan driver know it needs > to fake the cd bit for the controller inorder for the controller to > function with a SD card that does not provide the CD bit.
The devicetree is supposed to be descriptive rather than imperative. fake-cd is a bit more on the later side. There is already a standard property for describing that the card-detect pin is not connected, called 'broken-cd'. Can that be used instead?
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