diff options
Diffstat (limited to 'drivers/gpu/drm/imx/dpu/dpu-crtc.c')
| -rw-r--r-- | drivers/gpu/drm/imx/dpu/dpu-crtc.c | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/drivers/gpu/drm/imx/dpu/dpu-crtc.c b/drivers/gpu/drm/imx/dpu/dpu-crtc.c index 4ace85979756..890e0210c9a4 100644 --- a/drivers/gpu/drm/imx/dpu/dpu-crtc.c +++ b/drivers/gpu/drm/imx/dpu/dpu-crtc.c @@ -293,6 +293,12 @@ static void dpu_crtc_atomic_disable(struct drm_crtc *crtc, to_imx_crtc_state(old_crtc_state); struct dpu_crtc_state *dcstate = to_dpu_crtc_state(imx_crtc_state); struct drm_display_mode *adjusted_mode = &old_crtc_state->adjusted_mode; + struct dpu_plane *dplane = to_dpu_plane(crtc->primary); + struct dpu_plane_res *res = &dplane->grp->res; + struct dpu_plane_state *dpstate; + struct dpu_fetchunit *fu; + unsigned long flags; + int i; if (dcstate->crc.source != DPU_CRC_SRC_NONE) dpu_crtc_disable_crc_source(crtc, dcstate->use_pc); @@ -303,10 +309,60 @@ static void dpu_crtc_atomic_disable(struct drm_crtc *crtc, framegen_disable_pixel_link(dpu_crtc->m_fg); framegen_disable_pixel_link(dpu_crtc->s_fg); + /* don't relinquish CPU until DPRC repeat_en is disabled */ + local_irq_save(flags); + preempt_disable(); + /* + * Sync to FrameGen frame counter moving so that + * FrameGen can be disabled in the next frame. + */ + framegen_wait_for_frame_counter_moving(dpu_crtc->m_fg); + /* First turn off the master stream, second the slave stream. */ framegen_disable(dpu_crtc->m_fg); framegen_disable(dpu_crtc->s_fg); + /* + * There is one frame leftover after FrameGen disablement. + * Sync to FrameGen frame counter moving so that + * DPRC repeat_en can be disabled in the next frame. + */ + framegen_wait_for_frame_counter_moving(dpu_crtc->m_fg); + + for (i = 0; i < dpu_crtc->hw_plane_num; i++) { + dpu_block_id_t source; + bool aux_source_flag; + bool use_prefetch; + + dpstate = dcstate->dpu_plane_states[i]; + if (!dpstate) + continue; + + aux_source_flag = false; +again: + source = aux_source_flag ? dpstate->aux_source : + dpstate->source; + use_prefetch = aux_source_flag ? + dpstate->use_aux_prefetch : + dpstate->use_prefetch; + fu = source_to_fu(res, source); + if (!fu) { + local_irq_restore(flags); + preempt_enable(); + return; + } + + if (fu->dprc && use_prefetch) + dprc_disable_repeat_en(fu->dprc); + + if (dpstate->need_aux_source && !aux_source_flag) { + aux_source_flag = true; + goto again; + } + } + local_irq_restore(flags); + preempt_enable(); + framegen_wait_done(dpu_crtc->m_fg, adjusted_mode); framegen_wait_done(dpu_crtc->s_fg, adjusted_mode); @@ -314,7 +370,41 @@ static void dpu_crtc_atomic_disable(struct drm_crtc *crtc, dpu_crtc->aux_fg : dpu_crtc->fg); } else { framegen_disable_pixel_link(dpu_crtc->fg); + + /* don't relinquish CPU until DPRC repeat_en is disabled */ + local_irq_save(flags); + preempt_disable(); + /* + * Sync to FrameGen frame counter moving so that + * FrameGen can be disabled in the next frame. + */ + framegen_wait_for_frame_counter_moving(dpu_crtc->fg); framegen_disable(dpu_crtc->fg); + /* + * There is one frame leftover after FrameGen disablement. + * Sync to FrameGen frame counter moving so that + * DPRC repeat_en can be disabled in the next frame. + */ + framegen_wait_for_frame_counter_moving(dpu_crtc->fg); + + for (i = 0; i < dpu_crtc->hw_plane_num; i++) { + dpstate = dcstate->dpu_plane_states[i]; + if (!dpstate) + continue; + + fu = source_to_fu(res, dpstate->source); + if (!fu) { + local_irq_restore(flags); + preempt_enable(); + return; + } + + if (fu->dprc && dpstate->use_prefetch) + dprc_disable_repeat_en(fu->dprc); + } + local_irq_restore(flags); + preempt_enable(); + framegen_wait_done(dpu_crtc->fg, adjusted_mode); framegen_disable_clock(dpu_crtc->fg); } |