drm/<drivers>: Constify struct drm_driver

Only the following drivers aren't converted:
- amdgpu, because of the driver_feature mangling due to virt support.
  Subsequent patch will address this.
- nouveau, because DRIVER_ATOMIC uapi is still not the default on the
  platforms where it's supported (i.e. again driver_feature mangling)
- vc4, again because of driver_feature mangling
- qxl, because the ioctl table is somewhere else and moving that is
  maybe a bit too much, hence the num_ioctls assignment prevents a
  const driver structure.
- arcpgu, because that is stuck behind a pending tiny-fication series
  from me.
- legacy drivers, because legacy requires non-const drm_driver.

Note that for armada I also went ahead and made the ioctl array const.

Only cc'ing the driver people who've not been converted (everyone else
is way too much).

v2: Fix one misplaced const static, should be static const (0day)

v3:
- Improve commit message (Sam)

Acked-by: Sam Ravnborg <[email protected]>
Cc: kernel test robot <[email protected]>
Acked-by: Maxime Ripard <[email protected]>
Reviewed-by: Alex Deucher <[email protected]>
Signed-off-by: Daniel Vetter <[email protected]>
Cc: Sam Ravnborg <[email protected]>
Cc: Dave Airlie <[email protected]>
Cc: Gerd Hoffmann <[email protected]>
Cc: [email protected]
Cc: Harry Wentland <[email protected]>
Cc: Leo Li <[email protected]>
Cc: Alex Deucher <[email protected]>
Cc: Christian König <[email protected]>
Cc: Eric Anholt <[email protected]>
Cc: Maxime Ripard <[email protected]>
Cc: Ben Skeggs <[email protected]>
Cc: [email protected]
Signed-off-by: Daniel Vetter <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/gpu/drm/tilcdc/tilcdc_drv.c b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
index 3d7e4db756b7..f1d3a9f919fd 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_drv.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
@@ -166,7 +166,7 @@ static void tilcdc_fini(struct drm_device *dev)
 	drm_dev_put(dev);
 }
 
-static int tilcdc_init(struct drm_driver *ddrv, struct device *dev)
+static int tilcdc_init(const struct drm_driver *ddrv, struct device *dev)
 {
 	struct drm_device *ddev;
 	struct platform_device *pdev = to_platform_device(dev);
@@ -452,7 +452,7 @@ static void tilcdc_debugfs_init(struct drm_minor *minor)
 
 DEFINE_DRM_GEM_CMA_FOPS(fops);
 
-static struct drm_driver tilcdc_driver = {
+static const struct drm_driver tilcdc_driver = {
 	.driver_features    = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
 	.irq_handler        = tilcdc_irq,
 	DRM_GEM_CMA_DRIVER_OPS,