Commit f1ee74af authored by Andrzej Hajda's avatar Andrzej Hajda Committed by Imre Deak
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drm/i915/fbdev: do not create fbdev if HPD is suspended 



In case of deferred FB setup core can try to create new
framebuffer. Disallow it if hpd_suspended flag is set.

Signed-off-by: default avatarAndrzej Hajda <andrzej.hajda@intel.com>
Reviewed-by: default avatarImre Deak <imre.deak@intel.com>
Signed-off-by: default avatarImre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220826141929.189681-4-andrzej.hajda@intel.com
parent f8cc091e

drivers/gpu/drm/i915/display/intel_fbdev.c

+6 −0
Original line number Diff line number Diff line
@@ -210,6 +210,12 @@ static int intelfb_create(struct drm_fb_helper *helper, 
	struct drm_i915_gem_object *obj;

	int ret;



	mutex_lock(&ifbdev->hpd_lock);

	ret = ifbdev->hpd_suspended ? -EAGAIN : 0;

	mutex_unlock(&ifbdev->hpd_lock);

	if (ret)

		return ret;



	if (intel_fb &&

	    (sizes->fb_width > intel_fb->base.width ||

	     sizes->fb_height > intel_fb->base.height)) {