commit 059e4938f8b060b10c4352e6c45739473bc73267
author Masakazu Mokuno <mokuno@sm.sony.co.jp> Thu Jul 17 07:22:19 2008 +1000
committer Benjamin Herrenschmidt <benh@kernel.crashing.org> Tue Jul 22 10:39:33 2008 +1000
tree 27bd214190ba1a42b45fade9bbae310c2369d6cb
parent 6e5f1537833a9fc8251157dff403231f5c89a894

powerpc/ps3: Add a sub-match id to ps3_system_bus

Add sub match id for ps3 system bus so that two different system bus
devices can be connected to a shared device.

Signed-off-by: Masakazu Mokuno <mokuno@sm.sony.co.jp>
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

arch/powerpc/platforms/ps3/device-init.c

diff --git a/arch/powerpc/platforms/ps3/device-init.c b/arch/powerpc/platforms/ps3/device-init.c
index 3866deb..ffdd8e9 100644
--- a/arch/powerpc/platforms/ps3/device-init.c
+++ b/arch/powerpc/platforms/ps3/device-init.c
@@ -486,6 +486,7 @@
 		return -ENOMEM;
 
 	p->dev.match_id = PS3_MATCH_ID_GRAPHICS;
+	p->dev.match_sub_id = PS3_MATCH_SUB_ID_FB;
 	p->dev.dev_type = PS3_DEVICE_TYPE_IOC0;
 
 	result = ps3_system_bus_device_register(&p->dev);

arch/powerpc/platforms/ps3/system-bus.c

diff --git a/arch/powerpc/platforms/ps3/system-bus.c b/arch/powerpc/platforms/ps3/system-bus.c
index d66c362..280ee88 100644
--- a/arch/powerpc/platforms/ps3/system-bus.c
+++ b/arch/powerpc/platforms/ps3/system-bus.c
@@ -347,16 +347,23 @@
 	struct ps3_system_bus_driver *drv = ps3_drv_to_system_bus_drv(_drv);
 	struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev);
 
-	result = dev->match_id == drv->match_id;
+	if (!dev->match_sub_id)
+		result = dev->match_id == drv->match_id;
+	else
+		result = dev->match_sub_id == drv->match_sub_id &&
+			dev->match_id == drv->match_id;
 
 	if (result)
-		pr_info("%s:%d: dev=%u(%s), drv=%u(%s): match\n", __func__,
-			__LINE__, dev->match_id, dev->core.bus_id,
-			drv->match_id, drv->core.name);
+		pr_info("%s:%d: dev=%u.%u(%s), drv=%u.%u(%s): match\n",
+			__func__, __LINE__,
+			dev->match_id, dev->match_sub_id, dev->core.bus_id,
+			drv->match_id, drv->match_sub_id, drv->core.name);
 	else
-		pr_debug("%s:%d: dev=%u(%s), drv=%u(%s): miss\n", __func__,
-			__LINE__, dev->match_id, dev->core.bus_id,
-			drv->match_id, drv->core.name);
+		pr_debug("%s:%d: dev=%u.%u(%s), drv=%u.%u(%s): miss\n",
+			__func__, __LINE__,
+			dev->match_id, dev->match_sub_id, dev->core.bus_id,
+			drv->match_id, drv->match_sub_id, drv->core.name);
+
 	return result;
 }
 

drivers/video/ps3fb.c

diff --git a/drivers/video/ps3fb.c b/drivers/video/ps3fb.c
index dc3af1c..4b5d8077 100644
--- a/drivers/video/ps3fb.c
+++ b/drivers/video/ps3fb.c
@@ -1297,6 +1297,7 @@
 
 static struct ps3_system_bus_driver ps3fb_driver = {
 	.match_id	= PS3_MATCH_ID_GRAPHICS,
+	.match_sub_id	= PS3_MATCH_SUB_ID_FB,
 	.core.name	= DEVICE_NAME,
 	.core.owner	= THIS_MODULE,
 	.probe		= ps3fb_probe,

include/asm-powerpc/ps3.h

diff --git a/include/asm-powerpc/ps3.h b/include/asm-powerpc/ps3.h
index 81ffe3b..f9e34c4 100644
--- a/include/asm-powerpc/ps3.h
+++ b/include/asm-powerpc/ps3.h
@@ -337,12 +337,18 @@
 	PS3_DEVICE_TYPE_LPM,
 };
 
+enum ps3_match_sub_id {
+	/* for PS3_MATCH_ID_GRAPHICS */
+	PS3_MATCH_SUB_ID_FB		= 1,
+};
+
 /**
  * struct ps3_system_bus_device - a device on the system bus
  */
 
 struct ps3_system_bus_device {
 	enum ps3_match_id match_id;
+	enum ps3_match_sub_id match_sub_id;
 	enum ps3_system_bus_device_type dev_type;
 
 	u64 bus_id;                       /* SB */
@@ -371,6 +377,7 @@
 
 struct ps3_system_bus_driver {
 	enum ps3_match_id match_id;
+	enum ps3_match_sub_id match_sub_id;
 	struct device_driver core;
 	int (*probe)(struct ps3_system_bus_device *);
 	int (*remove)(struct ps3_system_bus_device *);