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Re: [PATCH 2/2] sdhci-of-arasan: Add quirk and device tree parameter to fake CD bit

From Lars-Peter Clausen <lars@metafoo.de>
Newsgroups linux.kernel
Subject Re: [PATCH 2/2] sdhci-of-arasan: Add quirk and device tree parameter to fake CD bit
Date 2016-08-25 12:40 +0200
Message-ID <sa0eK-8eB-11@gated-at.bofh.it> (permalink)
References <s9PMm-17y-19@gated-at.bofh.it> <s9PMn-17y-49@gated-at.bofh.it>
Organization linux.* mail to news gateway

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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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Thread

[PATCH 1/2] sdhci-of-arasan: Add quirk and device tree parameter to fake CD bit Zach Brown <zach.brown@ni.com> - 2016-08-25 01:30 +0200
  [PATCH 2/2] sdhci-of-arasan: Add quirk and device tree parameter to fake CD bit Zach Brown <zach.brown@ni.com> - 2016-08-25 01:30 +0200
    Re: [PATCH 2/2] sdhci-of-arasan: Add quirk and device tree parameter  to fake CD bit Adrian Hunter <adrian.hunter@intel.com> - 2016-08-25 11:00 +0200
    Re: [PATCH 2/2] sdhci-of-arasan: Add quirk and device tree parameter  to fake CD bit Lars-Peter Clausen <lars@metafoo.de> - 2016-08-25 12:40 +0200
  Re: [PATCH 1/2] sdhci-of-arasan: Add quirk and device tree parameter  to fake CD bit Mark Rutland <mark.rutland@arm.com> - 2016-08-25 13:00 +0200
    Re: [PATCH 1/2] sdhci-of-arasan: Add quirk and device tree parameter  to fake CD bit Mark Rutland <mark.rutland@arm.com> - 2016-08-25 20:20 +0200
      Re: [PATCH 1/2] sdhci-of-arasan: Add quirk and device tree parameter  to fake CD bit Mark Rutland <mark.rutland@arm.com> - 2016-08-25 20:30 +0200
        Re: [PATCH 1/2] sdhci-of-arasan: Add quirk and device tree parameter  to fake CD bit Ulf Hansson <ulf.hansson@linaro.org> - 2016-08-26 09:50 +0200
          Re: [PATCH 1/2] sdhci-of-arasan: Add quirk and device tree parameter  to fake CD bit Ulf Hansson <ulf.hansson@linaro.org> - 2016-08-29 13:30 +0200
  Re: [PATCH 1/2] sdhci-of-arasan: Add quirk and device tree parameter  to fake CD bit Lars-Peter Clausen <lars@metafoo.de> - 2016-08-25 18:00 +0200
    Re: [PATCH 1/2] sdhci-of-arasan: Add quirk and device tree parameter  to fake CD bit Lars-Peter Clausen <lars@metafoo.de> - 2016-08-25 18:00 +0200

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