drm: rip out dev->devname

This was only ever used to pretty-print the irq driver name. And on
kms systems due to set_version bonghits we never set up the prettier
name, ever. Which make this a bit pointless.

Also, we can always dig out the driver-instance/irq relationship
through other means, so this isn't that useful. So just rip it out to
simplify the set_version/set_busid insanity a bit.

Also delete the temporary busname from drm_pci_set_busid, it's now
unused.

v2: Rebase on top of the new host1x drm_bus for tegra.

Reviewed-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

1 files changed, 0 insertions, 10 deletions

diff --git a/drivers/gpu/drm/tegra/bus.c b/drivers/gpu/drm/tegra/bus.c
index 6916fa51cfa4..b3a66d65cb53 100644
--- a/drivers/gpu/drm/tegra/bus.c
+++ b/drivers/gpu/drm/tegra/bus.c
@@ -12,9 +12,7 @@ static int drm_host1x_set_busid(struct drm_device *dev,
 				struct drm_master *master)
 {
 	const char *device = dev_name(dev->dev);
-	const char *driver = dev->driver->name;
 	const char *bus = dev->dev->bus->name;
-	int length;
 
 	master->unique_len = strlen(bus) + 1 + strlen(device);
 	master->unique_size = master->unique_len;
@@ -25,14 +23,6 @@ static int drm_host1x_set_busid(struct drm_device *dev,
 
 	snprintf(master->unique, master->unique_len + 1, "%s:%s", bus, device);
 
-	length = strlen(driver) + 1 + master->unique_len;
-
-	dev->devname = kmalloc(length + 1, GFP_KERNEL);
-	if (!dev->devname)
-		return -ENOMEM;
-
-	snprintf(dev->devname, length + 1, "%s@%s", driver, master->unique);
-
 	return 0;
 }