staging: fsl-mc: add support for device table matching

Move the definition of fsl_mc_device_id to its proper location in
mod_devicetable.h, and add fsl-mc bus support to devicetable-offsets.c
and file2alias.c to enable device table matching.  With this patch udev
based module loading of fsl-mc drivers is supported.

Signed-off-by: Stuart Yoder <stuart.yoder@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/fsl-mc/include/mc.h b/drivers/staging/fsl-mc/include/mc.h
index bc0d45c..a9a9d23 100644 (file)
--- a/drivers/staging/fsl-mc/include/mc.h
+++ b/drivers/staging/fsl-mc/include/mc.h
@@ -50,19 +50,6 @@ struct fsl_mc_driver {
 #define to_fsl_mc_driver(_drv) \
        container_of(_drv, struct fsl_mc_driver, driver)
 
-/**
- * struct fsl_mc_device_id - MC object device Id entry for driver matching
- * @vendor: vendor ID
- * @obj_type: MC object type
- *
- * Type of entries in the "device Id" table for MC object devices supported by
- * a MC object device driver. The last entry of the table has vendor set to 0x0
- */
-struct fsl_mc_device_id {
-       u16 vendor;
-       const char obj_type[16];
-};
-
 /**
  * enum fsl_mc_pool_type - Types of allocatable MC bus resources
  *

diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h
index 6e4c645..ed84c07 100644 (file)
--- a/include/linux/mod_devicetable.h
+++ b/include/linux/mod_devicetable.h
@@ -657,4 +657,20 @@ struct ulpi_device_id {
        kernel_ulong_t driver_data;
 };
 
+/**
+ * struct fsl_mc_device_id - MC object device identifier
+ * @vendor: vendor ID
+ * @obj_type: MC object type
+ * @ver_major: MC object version major number
+ * @ver_minor: MC object version minor number
+ *
+ * Type of entries in the "device Id" table for MC object devices supported by
+ * a MC object device driver. The last entry of the table has vendor set to 0x0
+ */
+struct fsl_mc_device_id {
+       __u16 vendor;
+       const char obj_type[16];
+};
+
+
 #endif /* LINUX_MOD_DEVICETABLE_H */

diff --git a/scripts/mod/devicetable-offsets.c b/scripts/mod/devicetable-offsets.c
index 840b973..e4d90e5 100644 (file)
--- a/scripts/mod/devicetable-offsets.c
+++ b/scripts/mod/devicetable-offsets.c
@@ -202,5 +202,9 @@ int main(void)
        DEVID_FIELD(hda_device_id, rev_id);
        DEVID_FIELD(hda_device_id, api_version);
 
+       DEVID(fsl_mc_device_id);
+       DEVID_FIELD(fsl_mc_device_id, vendor);
+       DEVID_FIELD(fsl_mc_device_id, obj_type);
+
        return 0;
 }

diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c
index fec7578..29d6699 100644 (file)
--- a/scripts/mod/file2alias.c
+++ b/scripts/mod/file2alias.c
@@ -1289,6 +1289,18 @@ static int do_hda_entry(const char *filename, void *symval, char *alias)
 }
 ADD_TO_DEVTABLE("hdaudio", hda_device_id, do_hda_entry);
 
+/* Looks like: fsl-mc:vNdN */
+static int do_fsl_mc_entry(const char *filename, void *symval,
+                          char *alias)
+{
+       DEF_FIELD(symval, fsl_mc_device_id, vendor);
+       DEF_FIELD_ADDR(symval, fsl_mc_device_id, obj_type);
+
+       sprintf(alias, "fsl-mc:v%08Xd%s", vendor, *obj_type);
+       return 1;
+}
+ADD_TO_DEVTABLE("fslmc", fsl_mc_device_id, do_fsl_mc_entry);
+
 /* Does namelen bytes of name exactly match the symbol? */
 static bool sym_is(const char *name, unsigned namelen, const char *symbol)
 {