| Message ID | 20180908134648.2582-20-noralf@tronnes.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | drm/cma-helper drivers: Use drm_fbdev_generic_setup() | expand |
On Sat, Sep 08, 2018 at 03:46:47PM +0200, Noralf Trønnes wrote: > The CMA helper is already using the drm_fb_helper_generic_probe part of > the generic fbdev emulation. This patch makes full use of the generic > fbdev emulation by using its drm_client callbacks. This means that > drm_mode_config_funcs->output_poll_changed and drm_driver->lastclose are > now handled by the emulation code. Additionally fbdev unregister happens > automatically on drm_dev_unregister(). > > The drm_fbdev_generic_setup() call is put after drm_dev_register() in the > driver. This is done to highlight the fact that fbdev emulation is an > internal client that makes use of the driver, it is not part of the > driver as such. If fbdev setup fails, an error is printed, but the driver > succeeds probing. > > Cc: Shawn Guo <shawnguo@kernel.org> > Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Acked-by: Shawn Guo <shawnguo@kernel.org>
Den 10.09.2018 03.23, skrev Shawn Guo: > On Sat, Sep 08, 2018 at 03:46:47PM +0200, Noralf Trønnes wrote: >> The CMA helper is already using the drm_fb_helper_generic_probe part of >> the generic fbdev emulation. This patch makes full use of the generic >> fbdev emulation by using its drm_client callbacks. This means that >> drm_mode_config_funcs->output_poll_changed and drm_driver->lastclose are >> now handled by the emulation code. Additionally fbdev unregister happens >> automatically on drm_dev_unregister(). >> >> The drm_fbdev_generic_setup() call is put after drm_dev_register() in the >> driver. This is done to highlight the fact that fbdev emulation is an >> internal client that makes use of the driver, it is not part of the >> driver as such. If fbdev setup fails, an error is printed, but the driver >> succeeds probing. >> >> Cc: Shawn Guo <shawnguo@kernel.org> >> Signed-off-by: Noralf Trønnes <noralf@tronnes.org> > Acked-by: Shawn Guo <shawnguo@kernel.org> Applied to drm-misc-next, thanks. Noralf
diff --git a/drivers/gpu/drm/zte/zx_drm_drv.c b/drivers/gpu/drm/zte/zx_drm_drv.c index 6f4205e80378..a50b140faf7a 100644 --- a/drivers/gpu/drm/zte/zx_drm_drv.c +++ b/drivers/gpu/drm/zte/zx_drm_drv.c @@ -31,7 +31,6 @@ static const struct drm_mode_config_funcs zx_drm_mode_config_funcs = { .fb_create = drm_gem_fb_create, - .output_poll_changed = drm_fb_helper_output_poll_changed, .atomic_check = drm_atomic_helper_check, .atomic_commit = drm_atomic_helper_commit, }; @@ -41,7 +40,6 @@ DEFINE_DRM_GEM_CMA_FOPS(zx_drm_fops); static struct drm_driver zx_drm_driver = { .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_ATOMIC, - .lastclose = drm_fb_helper_lastclose, .gem_free_object_unlocked = drm_gem_cma_free_object, .gem_vm_ops = &drm_gem_cma_vm_ops, .dumb_create = drm_gem_cma_dumb_create, @@ -101,20 +99,14 @@ static int zx_drm_bind(struct device *dev) drm_mode_config_reset(drm); drm_kms_helper_poll_init(drm); - ret = drm_fb_cma_fbdev_init(drm, 32, 0); - if (ret) { - DRM_DEV_ERROR(dev, "failed to init cma fbdev: %d\n", ret); - goto out_poll_fini; - } - ret = drm_dev_register(drm, 0); if (ret) - goto out_fbdev_fini; + goto out_poll_fini; + + drm_fbdev_generic_setup(drm, 32); return 0; -out_fbdev_fini: - drm_fb_cma_fbdev_fini(drm); out_poll_fini: drm_kms_helper_poll_fini(drm); drm_mode_config_cleanup(drm); @@ -131,7 +123,6 @@ static void zx_drm_unbind(struct device *dev) struct drm_device *drm = dev_get_drvdata(dev); drm_dev_unregister(drm); - drm_fb_cma_fbdev_fini(drm); drm_kms_helper_poll_fini(drm); drm_mode_config_cleanup(drm); component_unbind_all(dev, drm);
The CMA helper is already using the drm_fb_helper_generic_probe part of the generic fbdev emulation. This patch makes full use of the generic fbdev emulation by using its drm_client callbacks. This means that drm_mode_config_funcs->output_poll_changed and drm_driver->lastclose are now handled by the emulation code. Additionally fbdev unregister happens automatically on drm_dev_unregister(). The drm_fbdev_generic_setup() call is put after drm_dev_register() in the driver. This is done to highlight the fact that fbdev emulation is an internal client that makes use of the driver, it is not part of the driver as such. If fbdev setup fails, an error is printed, but the driver succeeds probing. Cc: Shawn Guo <shawnguo@kernel.org> Signed-off-by: Noralf Trønnes <noralf@tronnes.org> --- drivers/gpu/drm/zte/zx_drm_drv.c | 15 +++------------ 1 file changed, 3 insertions(+), 12 deletions(-)