ALSA: hda - Add hduadio support to DEVTABLE

For generating modalias entries automatically, move the definition of
struct hda_device_id to linux/mod_devicetable.h and add the handling
of this record in file2alias helper.  The new modalias is represented
with combination of vendor id, device id, and api version as
"hdaudio:vNrNaN".

This patch itself doesn't convert the existing modaliases.  Since they
were added manually, this patch won't give any regression by itself at
this point.

[Modified the modalias format to adapt the api_version field, and drop
 invalid ANY_ID definition by tiwai]

Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
Reviewed-by: Vinod Koul <vinod.koul@intel.com>
Tested-by: Subhransu S Prusty <subhransu.s.prusty@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 17 insertions, 0 deletions

diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c
index 5f2088209132..fc51d4bff3f8 100644
--- a/scripts/mod/file2alias.c
+++ b/scripts/mod/file2alias.c
@@ -1250,6 +1250,23 @@ static int do_ulpi_entry(const char *filename, void *symval,
 }
 ADD_TO_DEVTABLE("ulpi", ulpi_device_id, do_ulpi_entry);
 
+/* Looks like: hdaudio:vNrNaN */
+static int do_hda_entry(const char *filename, void *symval, char *alias)
+{
+        DEF_FIELD(symval, hda_device_id, vendor_id);
+        DEF_FIELD(symval, hda_device_id, rev_id);
+        DEF_FIELD(symval, hda_device_id, api_version);
+
+        strcpy(alias, "hdaudio:");
+        ADD(alias, "v", vendor_id != 0, vendor_id);
+        ADD(alias, "r", rev_id != 0, rev_id);
+        ADD(alias, "a", api_version != 0, api_version);
+
+        add_wildcard(alias);
+        return 1;
+}
+ADD_TO_DEVTABLE("hdaudio", hda_device_id, do_hda_entry);
+
 /* Does namelen bytes of name exactly match the symbol? */
 static bool sym_is(const char *name, unsigned namelen, const char *symbol)
 {