diff options
| author | Mattia Dongili <malattia@linux.it> | 2011-02-19 05:52:25 +0300 |
|---|---|---|
| committer | Matthew Garrett <mjg@redhat.com> | 2011-03-28 14:05:23 +0400 |
| commit | 56e6e716b5211f4cda8db63b9a16d083ee193480 (patch) | |
| tree | 63f2454092607b7f7c1fb4c9f039feda3d17e7c3 /drivers/platform/x86/sony-laptop.c | |
| parent | 80887757e304d1f973330d9398024cffcd82d00d (diff) | |
| download | linux-56e6e716b5211f4cda8db63b9a16d083ee193480.tar.xz | |
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>
Diffstat (limited to 'drivers/platform/x86/sony-laptop.c')
| -rw-r--r-- | drivers/platform/x86/sony-laptop.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c index 13d8d63bcca9..5cd39af376d9 100644 --- a/drivers/platform/x86/sony-laptop.c +++ b/drivers/platform/x86/sony-laptop.c @@ -733,22 +733,30 @@ static int sony_find_snc_handle(int handle) 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; } /* |