From: Hans de Goede <hdegoede@xxxxxxxxxx>
[ Upstream commit 18937875a231d831c309716d6d8fc358f8381881 ]
Use acpi_evaluate_integer() instead of open-coding it.
This is a preparation patch for adding a intel_vbtn_has_switches()
helper function.
Fixes: de9647efeaa9 ("platform/x86: intel-vbtn: Only activate tablet mode switch on 2-in-1's")
Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/platform/x86/intel-vbtn.c | 19 ++++++-------------
1 file changed, 6 insertions(+), 13 deletions(-)
diff --git a/drivers/platform/x86/intel-vbtn.c b/drivers/platform/x86/intel-vbtn.c
index a0d0cecff55f..0bcfa20dd614 100644
--- a/drivers/platform/x86/intel-vbtn.c
+++ b/drivers/platform/x86/intel-vbtn.c
@@ -118,28 +118,21 @@ static void detect_tablet_mode(struct platform_device *device)
const char *chassis_type = dmi_get_system_info(DMI_CHASSIS_TYPE);
struct intel_vbtn_priv *priv = dev_get_drvdata(&device->dev);
acpi_handle handle = ACPI_HANDLE(&device->dev);
- struct acpi_buffer vgbs_output = { ACPI_ALLOCATE_BUFFER, NULL };
- union acpi_object *obj;
+ unsigned long long vgbs;
acpi_status status;
int m;
if (!(chassis_type && strcmp(chassis_type, "31") == 0))
- goto out;
+ return;
- status = acpi_evaluate_object(handle, "VGBS", NULL, &vgbs_output);
+ status = acpi_evaluate_integer(handle, "VGBS", NULL, &vgbs);
if (ACPI_FAILURE(status))
- goto out;
-
- obj = vgbs_output.pointer;
- if (!(obj && obj->type == ACPI_TYPE_INTEGER))
- goto out;
+ return;
- m = !(obj->integer.value & TABLET_MODE_FLAG);
+ m = !(vgbs & TABLET_MODE_FLAG);
input_report_switch(priv->input_dev, SW_TABLET_MODE, m);
- m = (obj->integer.value & DOCK_MODE_FLAG) ? 1 : 0;
+ m = (vgbs & DOCK_MODE_FLAG) ? 1 : 0;
input_report_switch(priv->input_dev, SW_DOCK, m);
-out:
- kfree(vgbs_output.pointer);
}
static int intel_vbtn_probe(struct platform_device *device)
--
2.25.1
