lkml.org 
[lkml]   [2017]   [Nov]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[RFC] iio: light: acpi-als: Enable the light sensor on the Zenbook UX430UQ
Date
This makes acpi-als properly enable the light sensor on the Zenbook UX430UQ. I don't know if the checking that I do to make sure that the ACPI method exists is sufficient or if it should disable the sensor when the module is unloaded, so input is appreciated on those matters.

Signed-off-by: Kiernan Hager <kah.listaddress@gmail.com>
---
drivers/iio/light/acpi-als.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)

diff --git a/drivers/iio/light/acpi-als.c b/drivers/iio/light/acpi-als.c
index c35e2f8df339..8fd66166f19f 100644
--- a/drivers/iio/light/acpi-als.c
+++ b/drivers/iio/light/acpi-als.c
@@ -179,6 +179,10 @@ static int acpi_als_add(struct acpi_device *device)
struct acpi_als *als;
struct iio_dev *indio_dev;
struct iio_buffer *buffer;
+ unsigned long long temp_val;
+ acpi_status status;
+ struct acpi_object_list arg_list;
+ union acpi_object arg;

indio_dev = devm_iio_device_alloc(&device->dev, sizeof(*als));
if (!indio_dev)
@@ -203,6 +207,18 @@ static int acpi_als_add(struct acpi_device *device)

iio_device_attach_buffer(indio_dev, buffer);

+ arg_list.count = 1;
+ arg_list.pointer = &arg;
+ arg.type = ACPI_TYPE_INTEGER;
+ arg.integer.value = 1;
+
+ if (acpi_has_method(als->device->handle, "\\_SB.PCI0.LPCB.EC0.ALSC")) {
+ status = acpi_evaluate_integer(als->device->handle,
+ "\\_SB.PCI0.LPCB.EC0.ALSC",
+ &arg_list,
+ &temp_val);
+ }
+
return devm_iio_device_register(&device->dev, indio_dev);
}

--
2.15.0
\
 
 \ /
  Last update: 2017-11-16 04:29    [W:0.074 / U:2.272 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site