Mali DP driver does not use drm_irq_{un,}install() function so the
drm->irq_enabled flag does not get managed automatically. Among other
DRM framework functions, drm_wait_vblank() checks the value of the
flag and return -EINVAL if not set.
Cc: Brian Starkey <Brian.Starkey@xxxxxxx>
Signed-off-by: Liviu Dudau <Liviu.Dudau@xxxxxxx>
---
drivers/gpu/drm/arm/malidp_drv.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/arm/malidp_drv.c b/drivers/gpu/drm/arm/malidp_drv.c
index 87c9249..a1c01e4 100644
--- a/drivers/gpu/drm/arm/malidp_drv.c
+++ b/drivers/gpu/drm/arm/malidp_drv.c
@@ -377,6 +377,8 @@ static int malidp_bind(struct device *dev)
if (ret < 0)
goto irq_init_fail;
+ drm->irq_enabled = true;
+
ret = drm_vblank_init(drm, drm->mode_config.num_crtc);
if (ret < 0) {
DRM_ERROR("failed to initialise vblank\n");
@@ -402,6 +404,7 @@ fbdev_fail:
vblank_fail:
malidp_se_irq_fini(drm);
malidp_de_irq_fini(drm);
+ drm->irq_enabled = false;
irq_init_fail:
component_unbind_all(dev, drm);
bind_fail:
@@ -439,6 +442,7 @@ static void malidp_unbind(struct device *dev)
drm_kms_helper_poll_fini(drm);
malidp_se_irq_fini(drm);
malidp_de_irq_fini(drm);
+ drm->irq_enabled = false;
drm_vblank_cleanup(drm);
component_unbind_all(dev, drm);
of_node_put(malidp->crtc.port);
--
2.9.0
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