b55f3bbab8
Replace all code that initializes or releases fbdev emulation throughout the driver. Instead initialize the fbdev client by a single call to intel_fbdev_setup() after i915 has registered its DRM device. Just like similar code in other drivers, i915 fbdev emulation now acts like a regular DRM client. Do the same for xe. The fbdev client setup consists of the initial preparation and the hot-plugging of the display. The latter creates the fbdev device and sets up the fbdev framebuffer. The setup performs display hot-plugging once. If no display can be detected, DRM probe helpers re-run the detection on each hotplug event. A call to drm_client_dev_unregister() releases all in-kernel clients automatically. No further action is required within i915. If the fbdev framebuffer has been fully set up, struct fb_ops.fb_destroy implements the release. For partially initialized emulation, the fbdev client reverts the initial setup. Do the same for xe and remove its call to intel_fbdev_fini(). v8: - setup client in intel_display_driver_register (Jouni) - mention xe in commit message v7: - update xe driver - reword commit message v6: - use 'i915' for i915 device (Jouni) - remove unnecessary code for non-atomic mode setting (Jouni, Ville) - fix function name in commit message (Jouni) v3: - as before, silently ignore devices without displays v2: - let drm_client_register() handle initial hotplug - fix driver name in error message (Jani) - fix non-fbdev build (kernel test robot) Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Jouni Högander <jouni.hogander@intel.com> Acked-by: Lucas De Marchi <lucas.demarchi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240409081029.17843-7-tzimmermann@suse.de Signed-off-by: Jani Nikula <jani.nikula@intel.com>
35 lines
838 B
C
35 lines
838 B
C
/* SPDX-License-Identifier: MIT */
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/*
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* Copyright © 2019 Intel Corporation
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*/
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#ifndef __INTEL_FBDEV_H__
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#define __INTEL_FBDEV_H__
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#include <linux/types.h>
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struct drm_device;
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struct drm_i915_private;
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struct intel_fbdev;
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struct intel_framebuffer;
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#ifdef CONFIG_DRM_FBDEV_EMULATION
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void intel_fbdev_setup(struct drm_i915_private *dev_priv);
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void intel_fbdev_set_suspend(struct drm_device *dev, int state, bool synchronous);
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struct intel_framebuffer *intel_fbdev_framebuffer(struct intel_fbdev *fbdev);
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#else
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static inline void intel_fbdev_setup(struct drm_i915_private *dev_priv)
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{
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}
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static inline void intel_fbdev_set_suspend(struct drm_device *dev, int state, bool synchronous)
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{
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}
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static inline struct intel_framebuffer *intel_fbdev_framebuffer(struct intel_fbdev *fbdev)
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{
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return NULL;
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}
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#endif
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#endif /* __INTEL_FBDEV_H__ */
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