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platform/x86: mxm-wmi: Evaluate wmi method with instance number 0x0 

According to MXM 2.1 specification, there is the only one instance of the
WMI GUID F6CB5C3C-9CAE-4EBD-B577-931EA32A2CC0 and so it is instance 0x0.

MXM 2.1 specification:
https://lekensteyn.nl/files/docs/mxm-2.1-software-spec.pdf

_WDG dump:
// Methods GUID {F6CB5C3C-9CAE-4EBD-B577-931EA32A2CC0}
0x3C, 0x5C, 0xCB, 0xF6, 0xAE, 0x9C, 0xBD, 0x4E, 0xB5, 0x77, 0x93,
0x1E, 0xA3, 0x2A, 0x2C, 0xC0,
0x4D, 0x58,    // Object ID "MX" = method "WMMX"
1,             // Instance Count
0x02,          // Flags (WMIACPI_REGFLAG_METHOD)

Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
This commit is contained in:
Pali Rohár 2017-08-12 09:44:15 +02:00 committed by Andy Shevchenko
parent 0fe5726121
commit f85a43b907
1 changed files with 2 additions and 2 deletions
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4
drivers/platform/x86/mxm-wmi.c
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@ -53,7 +53,7 @@ int mxm_wmi_call_mxds(int adapter)
printk("calling mux switch %d\n", adapter);
status = wmi_evaluate_method(MXM_WMMX_GUID, 0x1, adapter, &input,
status = wmi_evaluate_method(MXM_WMMX_GUID, 0x0, adapter, &input,
&output);
if (ACPI_FAILURE(status))
@ -78,7 +78,7 @@ int mxm_wmi_call_mxmx(int adapter)
printk("calling mux switch %d\n", adapter);
status = wmi_evaluate_method(MXM_WMMX_GUID, 0x1, adapter, &input,
status = wmi_evaluate_method(MXM_WMMX_GUID, 0x0, adapter, &input,
&output);
if (ACPI_FAILURE(status))