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authorSubhransu S. Prusty <subhransu.s.prusty@intel.com>2015-09-29 13:56:10 +0530
committerTakashi Iwai <tiwai@suse.de>2015-10-20 10:14:42 +0200
commitda23ac1e40ce844d1a9553906bdacce160af76f6 (patch)
treec31206e3057a14282a3cd134c7e4b74d6500639d
parent93ed8560e98afc486df94f5a6238c1f0894b38b8 (diff)
downloadlinux-da23ac1e40ce844d1a9553906bdacce160af76f6.tar.bz2
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>
-rw-r--r--include/linux/mod_devicetable.h8
-rw-r--r--include/sound/hdaudio.h12
-rw-r--r--scripts/mod/devicetable-offsets.c5
-rw-r--r--scripts/mod/file2alias.c17
-rw-r--r--sound/hda/hda_bus_type.c1
5 files changed, 32 insertions, 11 deletions
diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h
index 688997a24aad..00825672d256 100644
--- a/include/linux/mod_devicetable.h
+++ b/include/linux/mod_devicetable.h
@@ -219,6 +219,14 @@ struct serio_device_id {
__u8 proto;
};
+struct hda_device_id {
+ __u32 vendor_id;
+ __u32 rev_id;
+ __u8 api_version;
+ const char *name;
+ unsigned long driver_data;
+};
+
/*
* Struct used for matching a device
*/
diff --git a/include/sound/hdaudio.h b/include/sound/hdaudio.h
index b35bf59a1ecc..ddca48eb02e0 100644
--- a/include/sound/hdaudio.h
+++ b/include/sound/hdaudio.h
@@ -21,6 +21,7 @@ struct hdac_stream;
struct hdac_device;
struct hdac_driver;
struct hdac_widget_tree;
+struct hda_device_id;
/*
* exported bus type
@@ -28,17 +29,6 @@ struct hdac_widget_tree;
extern struct bus_type snd_hda_bus_type;
/*
- * HDA device table
- */
-struct hda_device_id {
- __u32 vendor_id;
- __u32 rev_id;
- __u8 api_version;
- const char *name;
- unsigned long driver_data;
-};
-
-/*
* generic arrays
*/
struct snd_array {
diff --git a/scripts/mod/devicetable-offsets.c b/scripts/mod/devicetable-offsets.c
index e70fcd12eeeb..e1a5110bd63b 100644
--- a/scripts/mod/devicetable-offsets.c
+++ b/scripts/mod/devicetable-offsets.c
@@ -196,5 +196,10 @@ int main(void)
DEVID_FIELD(ulpi_device_id, vendor);
DEVID_FIELD(ulpi_device_id, product);
+ DEVID(hda_device_id);
+ DEVID_FIELD(hda_device_id, vendor_id);
+ DEVID_FIELD(hda_device_id, rev_id);
+ DEVID_FIELD(hda_device_id, api_version);
+
return 0;
}
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)
{
diff --git a/sound/hda/hda_bus_type.c b/sound/hda/hda_bus_type.c
index 89c2711baaaf..bcb1a79eec38 100644
--- a/sound/hda/hda_bus_type.c
+++ b/sound/hda/hda_bus_type.c
@@ -4,6 +4,7 @@
#include <linux/init.h>
#include <linux/device.h>
#include <linux/module.h>
+#include <linux/mod_devicetable.h>
#include <linux/export.h>
#include <sound/hdaudio.h>