drm/ast: Automatically clean up poll helper
Automatically clean up the conncetor-poll thread as part of the DRM device release. The new helper drmm_kms_helper_poll_init() provides a shared implementation for all drivers. v6: - fix kernel doc comment (Sui, kernel test robot) Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com> Acked-by: Sui Jingfeng <sui.jingfeng@linux.dev> Link: https://patchwork.freedesktop.org/patch/msgid/20240325200855.21150-14-tzimmermann@suse.de
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@ -1905,7 +1905,9 @@ int ast_mode_config_init(struct ast_device *ast)
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drm_mode_config_reset(dev);
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drm_kms_helper_poll_init(dev);
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ret = drmm_kms_helper_poll_init(dev);
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if (ret)
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return ret;
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return 0;
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}
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@ -37,6 +37,7 @@
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#include <drm/drm_crtc.h>
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#include <drm/drm_edid.h>
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#include <drm/drm_fourcc.h>
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#include <drm/drm_managed.h>
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#include <drm/drm_modeset_helper_vtables.h>
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#include <drm/drm_print.h>
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#include <drm/drm_probe_helper.h>
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@ -951,6 +952,32 @@ void drm_kms_helper_poll_fini(struct drm_device *dev)
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}
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EXPORT_SYMBOL(drm_kms_helper_poll_fini);
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static void drm_kms_helper_poll_init_release(struct drm_device *dev, void *res)
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{
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drm_kms_helper_poll_fini(dev);
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}
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/**
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* drmm_kms_helper_poll_init - initialize and enable output polling
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* @dev: drm_device
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*
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* This function initializes and then also enables output polling support for
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* @dev similar to drm_kms_helper_poll_init(). Polling will automatically be
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* cleaned up when the DRM device goes away.
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*
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* See drm_kms_helper_poll_init() for more information.
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*
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* Returns:
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* 0 on success, or a negative errno code otherwise.
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*/
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int drmm_kms_helper_poll_init(struct drm_device *dev)
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{
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drm_kms_helper_poll_init(dev);
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return drmm_add_action_or_reset(dev, drm_kms_helper_poll_init_release, dev);
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}
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EXPORT_SYMBOL(drmm_kms_helper_poll_init);
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static bool check_connector_changed(struct drm_connector *connector)
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{
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struct drm_device *dev = connector->dev;
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@ -16,6 +16,8 @@ int drm_helper_probe_single_connector_modes(struct drm_connector
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int drm_helper_probe_detect(struct drm_connector *connector,
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struct drm_modeset_acquire_ctx *ctx,
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bool force);
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int drmm_kms_helper_poll_init(struct drm_device *dev);
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void drm_kms_helper_poll_init(struct drm_device *dev);
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void drm_kms_helper_poll_fini(struct drm_device *dev);
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bool drm_helper_hpd_irq_event(struct drm_device *dev);
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