| Message ID | 20181025201340.34227-8-noralf@tronnes.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | drm/cma-helper drivers: Use drm_fbdev_generic_setup() | expand |
On Thu, Oct 25, 2018 at 10:13:38PM +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: Maxime Ripard <maxime.ripard@bootlin.com> > Signed-off-by: Noralf Trønnes <noralf@tronnes.org> > Acked-by: Sam Ravnborg <sam@ravnborg.org> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com> Maxime
Den 26.10.2018 10.27, skrev Maxime Ripard: > On Thu, Oct 25, 2018 at 10:13:38PM +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: Maxime Ripard <maxime.ripard@bootlin.com> >> Signed-off-by: Noralf Trønnes <noralf@tronnes.org> >> Acked-by: Sam Ravnborg <sam@ravnborg.org> > Acked-by: Maxime Ripard <maxime.ripard@bootlin.com> Applied to drm-misc-next. Noralf.
diff --git a/drivers/gpu/drm/sun4i/sun4i_drv.c b/drivers/gpu/drm/sun4i/sun4i_drv.c index 1e41c3f5fd6d..ef773d36baf0 100644 --- a/drivers/gpu/drm/sun4i/sun4i_drv.c +++ b/drivers/gpu/drm/sun4i/sun4i_drv.c @@ -34,7 +34,6 @@ static struct drm_driver sun4i_drv_driver = { .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_ATOMIC, /* Generic Operations */ - .lastclose = drm_fb_helper_lastclose, .fops = &sun4i_drv_fops, .name = "sun4i-drm", .desc = "Allwinner sun4i Display Engine", @@ -105,12 +104,7 @@ static int sun4i_drv_bind(struct device *dev) /* Remove early framebuffers (ie. simplefb) */ drm_fb_helper_remove_conflicting_framebuffers(NULL, "sun4i-drm-fb", false); - /* Create our framebuffer */ - ret = sun4i_framebuffer_init(drm); - if (ret) { - dev_err(drm->dev, "Couldn't create our framebuffer\n"); - goto cleanup_mode_config; - } + sun4i_framebuffer_init(drm); /* Enable connectors polling */ drm_kms_helper_poll_init(drm); @@ -119,11 +113,12 @@ static int sun4i_drv_bind(struct device *dev) if (ret) goto finish_poll; + drm_fbdev_generic_setup(drm, 32); + return 0; finish_poll: drm_kms_helper_poll_fini(drm); - sun4i_framebuffer_free(drm); cleanup_mode_config: drm_mode_config_cleanup(drm); of_reserved_mem_device_release(dev); @@ -138,7 +133,6 @@ static void sun4i_drv_unbind(struct device *dev) drm_dev_unregister(drm); drm_kms_helper_poll_fini(drm); - sun4i_framebuffer_free(drm); drm_mode_config_cleanup(drm); of_reserved_mem_device_release(dev); drm_dev_put(drm); diff --git a/drivers/gpu/drm/sun4i/sun4i_framebuffer.c b/drivers/gpu/drm/sun4i/sun4i_framebuffer.c index 5f29850ef8ac..cb828028ae06 100644 --- a/drivers/gpu/drm/sun4i/sun4i_framebuffer.c +++ b/drivers/gpu/drm/sun4i/sun4i_framebuffer.c @@ -12,8 +12,6 @@ #include <drm/drm_atomic.h> #include <drm/drm_atomic_helper.h> -#include <drm/drm_fb_helper.h> -#include <drm/drm_fb_cma_helper.h> #include <drm/drm_gem_framebuffer_helper.h> #include <drm/drmP.h> @@ -37,7 +35,6 @@ static int sun4i_de_atomic_check(struct drm_device *dev, } static const struct drm_mode_config_funcs sun4i_de_mode_config_funcs = { - .output_poll_changed = drm_fb_helper_output_poll_changed, .atomic_check = sun4i_de_atomic_check, .atomic_commit = drm_atomic_helper_commit, .fb_create = drm_gem_fb_create, @@ -47,7 +44,7 @@ static struct drm_mode_config_helper_funcs sun4i_de_mode_config_helpers = { .atomic_commit_tail = drm_atomic_helper_commit_tail_rpm, }; -int sun4i_framebuffer_init(struct drm_device *drm) +void sun4i_framebuffer_init(struct drm_device *drm) { drm_mode_config_reset(drm); @@ -56,11 +53,4 @@ int sun4i_framebuffer_init(struct drm_device *drm) drm->mode_config.funcs = &sun4i_de_mode_config_funcs; drm->mode_config.helper_private = &sun4i_de_mode_config_helpers; - - return drm_fb_cma_fbdev_init(drm, 32, 0); -} - -void sun4i_framebuffer_free(struct drm_device *drm) -{ - drm_fb_cma_fbdev_fini(drm); } diff --git a/drivers/gpu/drm/sun4i/sun4i_framebuffer.h b/drivers/gpu/drm/sun4i/sun4i_framebuffer.h index 7ef0aed8384c..6fe5bd8c4026 100644 --- a/drivers/gpu/drm/sun4i/sun4i_framebuffer.h +++ b/drivers/gpu/drm/sun4i/sun4i_framebuffer.h @@ -13,7 +13,6 @@ #ifndef _SUN4I_FRAMEBUFFER_H_ #define _SUN4I_FRAMEBUFFER_H_ -int sun4i_framebuffer_init(struct drm_device *drm); -void sun4i_framebuffer_free(struct drm_device *drm); +void sun4i_framebuffer_init(struct drm_device *drm); #endif /* _SUN4I_FRAMEBUFFER_H_ */