From: Maxime Ripard Date: Mon, 11 Jul 2022 17:39:09 +0000 (+0200) Subject: drm/vc4: hdmi: Switch to DRM-managed encoder initialization X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=56924791cd5de99374a027cf00ce9b6e55d74203;p=linux.git drm/vc4: hdmi: Switch to DRM-managed encoder initialization The current code will call drm_encoder_cleanup() when the device is unbound. However, by then, there might still be some references held to that encoder, including by the userspace that might still have the DRM device open. Let's switch to a DRM-managed initialization to clean up after ourselves only once the DRM device has been last closed. Acked-by: Thomas Zimmermann Signed-off-by: Maxime Ripard Link: https://lore.kernel.org/r/20220711173939.1132294-40-maxime@cerno.tech --- diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c index 05f769474903e..6c44faea4af1b 100644 --- a/drivers/gpu/drm/vc4/vc4_hdmi.c +++ b/drivers/gpu/drm/vc4/vc4_hdmi.c @@ -2984,12 +2984,18 @@ static int vc4_hdmi_bind(struct device *dev, struct device *master, void *data) clk_prepare_enable(vc4_hdmi->pixel_bvb_clock); } - drm_simple_encoder_init(drm, encoder, DRM_MODE_ENCODER_TMDS); + ret = drmm_encoder_init(drm, encoder, + NULL, + DRM_MODE_ENCODER_TMDS, + NULL); + if (ret) + goto err_put_runtime_pm; + drm_encoder_helper_add(encoder, &vc4_hdmi_encoder_helper_funcs); ret = vc4_hdmi_connector_init(drm, vc4_hdmi); if (ret) - goto err_destroy_encoder; + goto err_put_runtime_pm; ret = vc4_hdmi_hotplug_init(vc4_hdmi); if (ret) @@ -3017,8 +3023,7 @@ err_free_hotplug: vc4_hdmi_hotplug_exit(vc4_hdmi); err_destroy_conn: drm_connector_cleanup(&vc4_hdmi->connector); -err_destroy_encoder: - drm_encoder_cleanup(encoder); +err_put_runtime_pm: pm_runtime_put_sync(dev); err_disable_runtime_pm: pm_runtime_disable(dev); @@ -3061,7 +3066,6 @@ static void vc4_hdmi_unbind(struct device *dev, struct device *master, vc4_hdmi_cec_exit(vc4_hdmi); vc4_hdmi_hotplug_exit(vc4_hdmi); drm_connector_cleanup(&vc4_hdmi->connector); - drm_encoder_cleanup(&vc4_hdmi->encoder.base); pm_runtime_disable(dev);