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

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 




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?
--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Device Tree Compilter]     [Device Tree Spec]     [Linux Driver Backports]     [Video for Linux]     [Linux USB Devel]     [Linux PCI Devel]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [XFree86]     [Yosemite Backpacking]
  Powered by Linux