diff options
Diffstat (limited to 'drivers/gpu/drm/arm/display/komeda/komeda_crtc.c')
| -rw-r--r-- | drivers/gpu/drm/arm/display/komeda/komeda_crtc.c | 91 |
1 files changed, 64 insertions, 27 deletions
diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_crtc.c b/drivers/gpu/drm/arm/display/komeda/komeda_crtc.c index 284ce079d8c4..f4400788ab94 100644 --- a/drivers/gpu/drm/arm/display/komeda/komeda_crtc.c +++ b/drivers/gpu/drm/arm/display/komeda/komeda_crtc.c @@ -18,6 +18,21 @@ #include "komeda_dev.h" #include "komeda_kms.h" +static void komeda_crtc_update_clock_ratio(struct komeda_crtc_state *kcrtc_st) +{ + u64 pxlclk, aclk; + + if (!kcrtc_st->base.active) { + kcrtc_st->clock_ratio = 0; + return; + } + + pxlclk = kcrtc_st->base.adjusted_mode.clock * 1000; + aclk = komeda_calc_aclk(kcrtc_st); + + kcrtc_st->clock_ratio = div64_u64(aclk << 32, pxlclk); +} + /** * komeda_crtc_atomic_check - build display output data flow * @crtc: DRM crtc @@ -38,6 +53,9 @@ komeda_crtc_atomic_check(struct drm_crtc *crtc, struct komeda_crtc_state *kcrtc_st = to_kcrtc_st(state); int err; + if (drm_atomic_crtc_needs_modeset(state)) + komeda_crtc_update_clock_ratio(kcrtc_st); + if (state->active) { err = komeda_build_display_data_flow(kcrtc, kcrtc_st); if (err) @@ -45,6 +63,10 @@ komeda_crtc_atomic_check(struct drm_crtc *crtc, } /* release unclaimed pipeline resources */ + err = komeda_release_unclaimed_resources(kcrtc->slave, kcrtc_st); + if (err) + return err; + err = komeda_release_unclaimed_resources(kcrtc->master, kcrtc_st); if (err) return err; @@ -52,11 +74,12 @@ komeda_crtc_atomic_check(struct drm_crtc *crtc, return 0; } -static u32 komeda_calc_mclk(struct komeda_crtc_state *kcrtc_st) +unsigned long komeda_calc_aclk(struct komeda_crtc_state *kcrtc_st) { - unsigned long mclk = kcrtc_st->base.adjusted_mode.clock * 1000; + struct komeda_dev *mdev = kcrtc_st->base.crtc->dev->dev_private; + unsigned long pxlclk = kcrtc_st->base.adjusted_mode.clock; - return mclk; + return clk_round_rate(mdev->aclk, pxlclk * 1000); } /* For active a crtc, mainly need two parts of preparation @@ -89,23 +112,20 @@ komeda_crtc_prepare(struct komeda_crtc *kcrtc) } mdev->dpmode = new_mode; - /* Only need to enable mclk on single display mode, but no need to - * enable mclk it on dual display mode, since the dual mode always - * switch from single display mode, the mclk already enabled, no need + /* Only need to enable aclk on single display mode, but no need to + * enable aclk it on dual display mode, since the dual mode always + * switch from single display mode, the aclk already enabled, no need * to enable it again. */ if (new_mode != KOMEDA_MODE_DUAL_DISP) { - err = clk_set_rate(mdev->mclk, komeda_calc_mclk(kcrtc_st)); + err = clk_set_rate(mdev->aclk, komeda_calc_aclk(kcrtc_st)); if (err) - DRM_ERROR("failed to set mclk.\n"); - err = clk_prepare_enable(mdev->mclk); + DRM_ERROR("failed to set aclk.\n"); + err = clk_prepare_enable(mdev->aclk); if (err) - DRM_ERROR("failed to enable mclk.\n"); + DRM_ERROR("failed to enable aclk.\n"); } - err = clk_prepare_enable(master->aclk); - if (err) - DRM_ERROR("failed to enable axi clk for pipe%d.\n", master->id); err = clk_set_rate(master->pxlclk, pxlclk_rate); if (err) DRM_ERROR("failed to set pxlclk for pipe%d\n", master->id); @@ -146,9 +166,8 @@ komeda_crtc_unprepare(struct komeda_crtc *kcrtc) mdev->dpmode = new_mode; clk_disable_unprepare(master->pxlclk); - clk_disable_unprepare(master->aclk); if (new_mode == KOMEDA_MODE_INACTIVE) - clk_disable_unprepare(mdev->mclk); + clk_disable_unprepare(mdev->aclk); unlock: mutex_unlock(&mdev->lock); @@ -165,6 +184,15 @@ void komeda_crtc_handle_event(struct komeda_crtc *kcrtc, if (events & KOMEDA_EVENT_VSYNC) drm_crtc_handle_vblank(crtc); + if (events & KOMEDA_EVENT_EOW) { + struct komeda_wb_connector *wb_conn = kcrtc->wb_conn; + + if (wb_conn) + drm_writeback_signal_completion(&wb_conn->base, 0); + else + DRM_WARN("CRTC[%d]: EOW happen but no wb_connector.\n", + drm_crtc_index(&kcrtc->base)); + } /* will handle it together with the write back support */ if (events & KOMEDA_EVENT_EOW) DRM_DEBUG("EOW.\n"); @@ -201,6 +229,9 @@ komeda_crtc_do_flush(struct drm_crtc *crtc, struct komeda_crtc_state *kcrtc_st = to_kcrtc_st(crtc->state); struct komeda_dev *mdev = kcrtc->base.dev->dev_private; struct komeda_pipeline *master = kcrtc->master; + struct komeda_pipeline *slave = kcrtc->slave; + struct komeda_wb_connector *wb_conn = kcrtc->wb_conn; + struct drm_connector_state *conn_st; DRM_DEBUG_ATOMIC("CRTC%d_FLUSH: active_pipes: 0x%x, affected: 0x%x.\n", drm_crtc_index(crtc), @@ -210,6 +241,13 @@ komeda_crtc_do_flush(struct drm_crtc *crtc, if (has_bit(master->id, kcrtc_st->affected_pipes)) komeda_pipeline_update(master, old->state); + if (slave && has_bit(slave->id, kcrtc_st->affected_pipes)) + komeda_pipeline_update(slave, old->state); + + conn_st = wb_conn ? wb_conn->base.base.state : NULL; + if (conn_st && conn_st->writeback_job) + drm_writeback_queue_job(&wb_conn->base, conn_st); + /* step 2: notify the HW to kickoff the update */ mdev->funcs->flush(mdev, master->id, kcrtc_st->active_pipes); } @@ -231,6 +269,7 @@ komeda_crtc_atomic_disable(struct drm_crtc *crtc, struct komeda_crtc_state *old_st = to_kcrtc_st(old); struct komeda_dev *mdev = crtc->dev->dev_private; struct komeda_pipeline *master = kcrtc->master; + struct komeda_pipeline *slave = kcrtc->slave; struct completion *disable_done = &crtc->state->commit->flip_done; struct completion temp; int timeout; @@ -239,6 +278,9 @@ komeda_crtc_atomic_disable(struct drm_crtc *crtc, drm_crtc_index(crtc), old_st->active_pipes, old_st->affected_pipes); + if (slave && has_bit(slave->id, old_st->active_pipes)) + komeda_pipeline_disable(slave, old->state); + if (has_bit(master->id, old_st->active_pipes)) komeda_pipeline_disable(master, old->state); @@ -311,7 +353,6 @@ komeda_crtc_mode_valid(struct drm_crtc *crtc, const struct drm_display_mode *m) if (m->flags & DRM_MODE_FLAG_INTERLACE) return MODE_NO_INTERLACE; - /* main clock/AXI clk must be faster than pxlclk*/ mode_clk = m->clock * 1000; pxlclk = clk_round_rate(master->pxlclk, mode_clk); if (pxlclk != mode_clk) { @@ -320,15 +361,9 @@ komeda_crtc_mode_valid(struct drm_crtc *crtc, const struct drm_display_mode *m) return MODE_NOCLOCK; } - if (clk_round_rate(mdev->mclk, mode_clk) < pxlclk) { - DRM_DEBUG_ATOMIC("mclk can't satisfy the requirement of %s-clk: %ld.\n", - m->name, pxlclk); - - return MODE_CLOCK_HIGH; - } - - if (clk_round_rate(master->aclk, mode_clk) < pxlclk) { - DRM_DEBUG_ATOMIC("aclk can't satisfy the requirement of %s-clk: %ld.\n", + /* main engine clock must be faster than pxlclk*/ + if (clk_round_rate(mdev->aclk, mode_clk) < pxlclk) { + DRM_DEBUG_ATOMIC("engine clk can't satisfy the requirement of %s-clk: %ld.\n", m->name, pxlclk); return MODE_CLOCK_HIGH; @@ -389,6 +424,8 @@ komeda_crtc_atomic_duplicate_state(struct drm_crtc *crtc) __drm_atomic_helper_crtc_duplicate_state(crtc, &new->base); new->affected_pipes = old->active_pipes; + new->clock_ratio = old->clock_ratio; + new->max_slave_zorder = old->max_slave_zorder; return &new->base; } @@ -444,7 +481,7 @@ int komeda_kms_setup_crtcs(struct komeda_kms_dev *kms, master = mdev->pipelines[i]; crtc->master = master; - crtc->slave = NULL; + crtc->slave = komeda_pipeline_get_slave(master); if (crtc->slave) sprintf(str, "pipe-%d", crtc->slave->id); @@ -498,7 +535,7 @@ static int komeda_crtc_add(struct komeda_kms_dev *kms, crtc->port = kcrtc->master->of_output_port; - return 0; + return err; } int komeda_kms_add_crtcs(struct komeda_kms_dev *kms, struct komeda_dev *mdev) |