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Re: [PATCH] mmc: sdhci-acpi: set non-removable in ACPI table

From Adrian Hunter <adrian.hunter@intel.com>
Newsgroups linux.kernel
Subject Re: [PATCH] mmc: sdhci-acpi: set non-removable in ACPI table
Date 2015-12-07 09:40 +0100
Message-ID <qCZuW-24d-7@gated-at.bofh.it> (permalink)
References <qBCqL-5Om-11@gated-at.bofh.it> <qBCTM-6fn-1@gated-at.bofh.it> <qC0Mq-4A2-35@gated-at.bofh.it>
Organization Intel Finland Oy, Registered Address: PL 281, 00181 Helsinki, Business Identity Code: 0357606 - 4, Domiciled in Helsinki

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On 04/12/15 17:40, Philip Elcan wrote:
> 
> On 12/03/2015 09:14 AM, Adrian Hunter wrote:
>> On 03/12/15 15:48, Philip Elcan wrote:
>>> This allows setting an SDHC controller as non-removable
>>> by using the _RMV method in the ACPI table. It doesn't
>> Is that _RMV on the host controller?  Shouldn't it be on the card i.e. child
>> device node?
> 
> Yes, this is on the host controller. The ACPI table only describes the
> host controller, not the child nodes.
> 

If you look at Intel devices, the _RMV is on the child e.g.

        Device (SDHA)
        {
            Name (_HID, "80860F14")  // _HID: Hardware ID
            Name (_CID, "PNP0D40")  // _CID: Compatible ID
            Name (_DDN, "Intel(R) eMMC Controller - 80860F14")  // _DDN: DOS Device Name
	    ...
            Device (EMMD)
            {
		...
                Method (_RMV, 0, NotSerialized)  // _RMV: Removal Status
                {
                    Return (Zero)
                }
            }
        }

I am not an ACPI expert but that seems like the correct place for it.

>>
>>> mark it as non-removable if GPIO card detection is
>>> already setup.
>>>
>>> Signed-off-by: Philip Elcan <pelcan@codeaurora.org>
>>> ---
>>>
> 

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Thread

[PATCH] mmc: sdhci-acpi: set non-removable in ACPI table Philip Elcan <pelcan@codeaurora.org> - 2015-12-03 14:50 +0100
  Re: [PATCH] mmc: sdhci-acpi: set non-removable in ACPI table Adrian Hunter <adrian.hunter@intel.com> - 2015-12-03 15:20 +0100
    Re: [PATCH] mmc: sdhci-acpi: set non-removable in ACPI table Philip Elcan <pelcan@codeaurora.org> - 2015-12-04 16:50 +0100
      Re: [PATCH] mmc: sdhci-acpi: set non-removable in ACPI table Adrian Hunter <adrian.hunter@intel.com> - 2015-12-07 09:40 +0100
        Re: [PATCH] mmc: sdhci-acpi: set non-removable in ACPI table Philip Elcan <pelcan@codeaurora.org> - 2015-12-10 22:00 +0100
          Re: [PATCH] mmc: sdhci-acpi: set non-removable in ACPI table Adrian Hunter <adrian.hunter@intel.com> - 2015-12-11 09:30 +0100
            Re: [PATCH] mmc: sdhci-acpi: set non-removable in ACPI table "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2015-12-11 23:30 +0100

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