From f53705fd98030a814fb8e9c05bbed9d0c49d211b Mon Sep 17 00:00:00 2001 From: =?utf8?q?Noralf=20Tr=C3=B8nnes?= Date: Sat, 8 Sep 2018 15:46:39 +0200 Subject: [PATCH] drm/imx: Use drm_fbdev_generic_setup() MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit 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. CONFIG_DRM_FBDEV_EMULATION wasn't honoured by the CMA helper, but it is by drm_fb_helper. Cc: Philipp Zabel Signed-off-by: Noralf Trønnes Acked-by: Sam Ravnborg Tested-by: Philipp Zabel Acked-by: Philipp Zabel Link: https://patchwork.freedesktop.org/patch/msgid/20180908134648.2582-12-noralf@tronnes.org --- drivers/gpu/drm/imx/imx-drm-core.c | 19 ++++--------------- 1 file changed, 4 insertions(+), 15 deletions(-) diff --git a/drivers/gpu/drm/imx/imx-drm-core.c b/drivers/gpu/drm/imx/imx-drm-core.c index 5ea0c82f9957..a70f3131a377 100644 --- a/drivers/gpu/drm/imx/imx-drm-core.c +++ b/drivers/gpu/drm/imx/imx-drm-core.c @@ -86,7 +86,6 @@ static int imx_drm_atomic_check(struct drm_device *dev, static const struct drm_mode_config_funcs imx_drm_mode_config_funcs = { .fb_create = drm_gem_fb_create, - .output_poll_changed = drm_fb_helper_output_poll_changed, .atomic_check = imx_drm_atomic_check, .atomic_commit = drm_atomic_helper_commit, }; @@ -165,7 +164,6 @@ static const struct drm_ioctl_desc imx_drm_ioctls[] = { static struct drm_driver imx_drm_driver = { .driver_features = DRIVER_MODESET | DRIVER_GEM | 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, @@ -263,30 +261,23 @@ static int imx_drm_bind(struct device *dev) * The fb helper takes copies of key hardware information, so the * crtcs/connectors/encoders must not change after this point. */ -#if IS_ENABLED(CONFIG_DRM_FBDEV_EMULATION) if (legacyfb_depth != 16 && legacyfb_depth != 32) { dev_warn(dev, "Invalid legacyfb_depth. Defaulting to 16bpp\n"); legacyfb_depth = 16; } - ret = drm_fb_cma_fbdev_init(drm, legacyfb_depth, MAX_CRTC); - if (ret) - goto err_unbind; -#endif drm_kms_helper_poll_init(drm); ret = drm_dev_register(drm, 0); if (ret) - goto err_fbhelper; + goto err_poll_fini; + + drm_fbdev_generic_setup(drm, legacyfb_depth); return 0; -err_fbhelper: +err_poll_fini: drm_kms_helper_poll_fini(drm); -#if IS_ENABLED(CONFIG_DRM_FBDEV_EMULATION) - drm_fb_cma_fbdev_fini(drm); -err_unbind: -#endif component_unbind_all(drm->dev, drm); err_kms: drm_mode_config_cleanup(drm); @@ -303,8 +294,6 @@ static void imx_drm_unbind(struct device *dev) drm_kms_helper_poll_fini(drm); - drm_fb_cma_fbdev_fini(drm); - drm_mode_config_cleanup(drm); component_unbind_all(drm->dev, drm); -- 2.30.2