From: Harry Wentland Date: Tue, 13 Feb 2018 11:03:01 -0500 Subject: drm/amd/display: Return success when enabling interrupt Git-commit: c0e463d3a02a54bdb272f9e52c5942348234c40e Patch-mainline: v4.16-rc5 References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166 Signed-off-by: Harry Wentland Reviewed-by: Roman Li Acked-by: Harry Wentland Signed-off-by: Alex Deucher Acked-by: Petr Tesarik --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 3 +-- drivers/gpu/drm/amd/display/dc/core/dc.c | 6 +++--- drivers/gpu/drm/amd/display/dc/dc.h | 2 +- 3 files changed, 5 insertions(+), 6 deletions(-) --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -2502,8 +2502,7 @@ static inline int dm_set_vblank(struct d struct amdgpu_device *adev = crtc->dev->dev_private; irq_source = IRQ_TYPE_VBLANK + acrtc->otg_inst; - dc_interrupt_set(adev->dm.dc, irq_source, enable); - return 0; + return dc_interrupt_set(adev->dm.dc, irq_source, enable) ? 0 : -EBUSY; } static int dm_enable_vblank(struct drm_crtc *crtc) --- a/drivers/gpu/drm/amd/display/dc/core/dc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc.c @@ -1358,13 +1358,13 @@ enum dc_irq_source dc_interrupt_to_irq_s return dal_irq_service_to_irq_source(dc->res_pool->irqs, src_id, ext_id); } -void dc_interrupt_set(struct dc *dc, enum dc_irq_source src, bool enable) +bool dc_interrupt_set(struct dc *dc, enum dc_irq_source src, bool enable) { if (dc == NULL) - return; + return false; - dal_irq_service_set(dc->res_pool->irqs, src, enable); + return dal_irq_service_set(dc->res_pool->irqs, src, enable); } void dc_interrupt_ack(struct dc *dc, enum dc_irq_source src) --- a/drivers/gpu/drm/amd/display/dc/dc.h +++ b/drivers/gpu/drm/amd/display/dc/dc.h @@ -673,7 +673,7 @@ enum dc_irq_source dc_interrupt_to_irq_s struct dc *dc, uint32_t src_id, uint32_t ext_id); -void dc_interrupt_set(struct dc *dc, enum dc_irq_source src, bool enable); +bool dc_interrupt_set(struct dc *dc, enum dc_irq_source src, bool enable); void dc_interrupt_ack(struct dc *dc, enum dc_irq_source src); enum dc_irq_source dc_get_hpd_irq_source_at_index( struct dc *dc, uint32_t link_index);