diff options
author | Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> | 2014-09-23 10:35:54 +0800 |
---|---|---|
committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2014-09-24 22:58:09 +0200 |
commit | c15d821ddb9dac9ac6b5beb75bf942f3bc3a4004 (patch) | |
tree | b453653f8406377c89fbfed0202be4436f5257d9 /include/acpi/acpi_bus.h | |
parent | 75ec6e55f1384548311a13ce4fcb39c516053314 (diff) | |
download | lwn-c15d821ddb9dac9ac6b5beb75bf942f3bc3a4004.tar.gz lwn-c15d821ddb9dac9ac6b5beb75bf942f3bc3a4004.zip |
gpio / ACPI: Use pin index and bit length
Fix code when the operation region callback is for an gpio, which
is not at index 0 and for partial pins in a GPIO definition.
For example:
Name (GMOD, ResourceTemplate ()
{
//3 Outputs that define the Power mode of the device
GpioIo (Exclusive, PullDown, , , , "\\_SB.GPI2") {10, 11, 12}
})
}
If opregion callback calls is for:
- Set pin 10, then address = 0 and bit length = 1
- Set pin 11, then address = 1 and bit length = 1
- Set for both pin 11 and pin 12, then address = 1, bit length = 2
This change requires updated ACPICA gpio operation handler code to
send the pin index and bit length.
Fixes: 473ed7be0da0 (gpio / ACPI: Add support for ACPI GPIO operation regions)
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Cc: 3.15+ <stable@vger.kernel.org> # 3.15+: 75ec6e55f138 ACPICA: Update to GPIO region handler interface.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'include/acpi/acpi_bus.h')
0 files changed, 0 insertions, 0 deletions