From bd83c4253992d263cb83108e26b4687058f11deb Mon Sep 17 00:00:00 2001
From: Stuart Yoder <stuart.yoder@nxp.com>
Date: Wed, 22 Jun 2016 16:40:45 -0500
Subject: [PATCH 182/226] 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>
---
 drivers/staging/fsl-mc/include/mc.h |   13 -------------
 include/linux/mod_devicetable.h     |   16 ++++++++++++++++
 scripts/mod/devicetable-offsets.c   |    4 ++++
 scripts/mod/file2alias.c            |   12 ++++++++++++
 4 files changed, 32 insertions(+), 13 deletions(-)

--- a/drivers/staging/fsl-mc/include/mc.h
+++ b/drivers/staging/fsl-mc/include/mc.h
@@ -51,19 +51,6 @@ struct fsl_mc_driver {
 	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
  *
  * Entries in these enum are used as indices in the array of resource
--- 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 */
--- 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;
 }
--- a/scripts/mod/file2alias.c
+++ b/scripts/mod/file2alias.c
@@ -1186,6 +1186,17 @@ static int do_hda_entry(const char *file
 	return 1;
 }
 
+/* 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;
+}
+
 /* Does namelen bytes of name exactly match the symbol? */
 static bool sym_is(const char *name, unsigned namelen, const char *symbol)
 {
@@ -1251,6 +1262,7 @@ static const struct devtable devtable[]
 	{"rapidio", SIZE_rio_device_id, do_rio_entry},
 	{"ulpi", SIZE_ulpi_device_id, do_ulpi_entry},
 	{"hdaudio", SIZE_hda_device_id, do_hda_entry},
+	{"fslmc", SIZE_fsl_mc_device_id, do_fsl_mc_entry},
 	{"of", SIZE_of_device_id, do_of_entry},
 };
 
