sony-laptop: add some debug printk useful for bug reports
Signed-off-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c
index 13d8d63..5cd39af 100644
--- a/drivers/platform/x86/sony-laptop.c
+++ b/drivers/platform/x86/sony-laptop.c
@@ -733,22 +733,30 @@
for (i = 0x20; i < 0x30; i++) {
acpi_callsetfunc(sony_nc_acpi_handle, "SN00", i, &result);
- if (result == handle)
+ if (result == handle) {
+ dprintk("found handle 0x%.4x (offset: 0x%.2x)\n",
+ handle, i - 0x20);
return i-0x20;
+ }
}
+ dprintk("handle 0x%.4x not found\n", handle);
return -1;
}
static int sony_call_snc_handle(int handle, int argument, int *result)
{
+ int ret = 0;
int offset = sony_find_snc_handle(handle);
if (offset < 0)
return -1;
- return acpi_callsetfunc(sony_nc_acpi_handle, "SN07", offset | argument,
- result);
+ ret = acpi_callsetfunc(sony_nc_acpi_handle, "SN07", offset | argument,
+ result);
+ dprintk("called SN07 with 0x%.4x (result: 0x%.4x)\n", offset | argument,
+ *result);
+ return ret;
}
/*