Include the device id in the bus-id to give userspace a way to open
the correct "cardN" when there are multiple device instances.
Signed-off-by: Rob Clark <rob@xxxxxx>
---
drivers/gpu/drm/drm_platform.c | 5 +++--
1 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/drm_platform.c b/drivers/gpu/drm/drm_platform.c
index 7223f06..2a8b626 100644
--- a/drivers/gpu/drm/drm_platform.c
+++ b/drivers/gpu/drm/drm_platform.c
@@ -123,14 +123,15 @@ static int drm_platform_set_busid(struct drm_device *dev, struct drm_master *mas
{
int len, ret;
- master->unique_len = 10 + strlen(dev->platformdev->name);
+ master->unique_len = 13 + strlen(dev->platformdev->name);
+ master->unique_size = master->unique_len;
master->unique = kmalloc(master->unique_len + 1, GFP_KERNEL);
if (master->unique == NULL)
return -ENOMEM;
len = snprintf(master->unique, master->unique_len,
- "platform:%s", dev->platformdev->name);
+ "platform:%s:%02d", dev->platformdev->name, dev->platformdev->id);
if (len > master->unique_len) {
DRM_ERROR("Unique buffer overflowed\n");
--
1.7.4.1
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