diff options
| author | Hector Martin <marcan@marcan.st> | 2023-04-24 15:46:57 +0900 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2023-04-27 18:50:26 +0200 |
| commit | 9bde7fb8940f636f4338bf233883ae37844dcdb7 (patch) | |
| tree | 47c970d035963b466c560c3c4a0ab6be63fe9faa /drivers/acpi | |
| parent | 793582ff47f8b73be8d3d925d750bf3ef79f33c7 (diff) | |
ACPI: property: Support strings in Apple _DSM props
The Wi-Fi module in x86 Apple machines has a "module-instance" device
property that specifies the platform type and is used for firmware
selection. Its value is a string, so add support for string values in
acpi_extract_apple_properties().
Reviewed-by: Lukas Wunner <lukas@wunner.de>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Hector Martin <marcan@marcan.st>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi')
| -rw-r--r-- | drivers/acpi/x86/apple.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/acpi/x86/apple.c b/drivers/acpi/x86/apple.c index 8812ecd03d55..45d0f16f374f 100644 --- a/drivers/acpi/x86/apple.c +++ b/drivers/acpi/x86/apple.c @@ -71,13 +71,16 @@ void acpi_extract_apple_properties(struct acpi_device *adev) if ( key->type != ACPI_TYPE_STRING || (val->type != ACPI_TYPE_INTEGER && - val->type != ACPI_TYPE_BUFFER)) + val->type != ACPI_TYPE_BUFFER && + val->type != ACPI_TYPE_STRING)) continue; /* skip invalid properties */ __set_bit(i, valid); newsize += key->string.length + 1; if ( val->type == ACPI_TYPE_BUFFER) newsize += val->buffer.length; + else if (val->type == ACPI_TYPE_STRING) + newsize += val->string.length + 1; } numvalid = bitmap_weight(valid, numprops); @@ -119,6 +122,12 @@ void acpi_extract_apple_properties(struct acpi_device *adev) newprops[v].type = val->type; if (val->type == ACPI_TYPE_INTEGER) { newprops[v].integer.value = val->integer.value; + } else if (val->type == ACPI_TYPE_STRING) { + newprops[v].string.length = val->string.length; + newprops[v].string.pointer = free_space; + memcpy(free_space, val->string.pointer, + val->string.length); + free_space += val->string.length + 1; } else { newprops[v].buffer.length = val->buffer.length; newprops[v].buffer.pointer = free_space; |