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Commit 28a4a163 authored by Rob Clark's avatar Rob Clark Committed by Dave Airlie
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drm: platform multi-device support 



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: default avatarRob Clark <rob@ti.com>
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent d0254d56

drivers/gpu/drm/drm_platform.c

+3 −2
Original line number Diff line number Diff line
@@ -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");