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 | 120 |
1 files changed, 85 insertions, 35 deletions
diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_crtc.c b/drivers/gpu/drm/arm/display/komeda/komeda_crtc.c index 56bd938961ee..5a66948ffd24 100644 --- a/drivers/gpu/drm/arm/display/komeda/komeda_crtc.c +++ b/drivers/gpu/drm/arm/display/komeda/komeda_crtc.c @@ -5,15 +5,16 @@ * */ #include <linux/clk.h> +#include <linux/of.h> #include <linux/pm_runtime.h> #include <linux/spinlock.h> #include <drm/drm_atomic.h> #include <drm/drm_atomic_helper.h> -#include <drm/drm_crtc_helper.h> -#include <drm/drm_plane_helper.h> #include <drm/drm_print.h> #include <drm/drm_vblank.h> +#include <drm/drm_simple_kms_helper.h> +#include <drm/drm_bridge.h> #include "komeda_dev.h" #include "komeda_kms.h" @@ -74,16 +75,18 @@ static void komeda_crtc_update_clock_ratio(struct komeda_crtc_state *kcrtc_st) */ static int komeda_crtc_atomic_check(struct drm_crtc *crtc, - struct drm_crtc_state *state) + struct drm_atomic_state *state) { + struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state, + crtc); struct komeda_crtc *kcrtc = to_kcrtc(crtc); - struct komeda_crtc_state *kcrtc_st = to_kcrtc_st(state); + struct komeda_crtc_state *kcrtc_st = to_kcrtc_st(crtc_state); int err; - if (drm_atomic_crtc_needs_modeset(state)) + if (drm_atomic_crtc_needs_modeset(crtc_state)) komeda_crtc_update_clock_ratio(kcrtc_st); - if (state->active) { + if (crtc_state->active) { err = komeda_build_display_data_flow(kcrtc, kcrtc_st); if (err) return err; @@ -108,6 +111,7 @@ komeda_crtc_atomic_check(struct drm_crtc *crtc, static int komeda_crtc_prepare(struct komeda_crtc *kcrtc) { + struct drm_device *drm = kcrtc->base.dev; struct komeda_dev *mdev = kcrtc->base.dev->dev_private; struct komeda_pipeline *master = kcrtc->master; struct komeda_crtc_state *kcrtc_st = to_kcrtc_st(kcrtc->base.state); @@ -125,8 +129,8 @@ komeda_crtc_prepare(struct komeda_crtc *kcrtc) err = mdev->funcs->change_opmode(mdev, new_mode); if (err) { - DRM_ERROR("failed to change opmode: 0x%x -> 0x%x.\n,", - mdev->dpmode, new_mode); + drm_err(drm, "failed to change opmode: 0x%x -> 0x%x.\n,", + mdev->dpmode, new_mode); goto unlock; } @@ -139,18 +143,18 @@ komeda_crtc_prepare(struct komeda_crtc *kcrtc) if (new_mode != KOMEDA_MODE_DUAL_DISP) { err = clk_set_rate(mdev->aclk, komeda_crtc_get_aclk(kcrtc_st)); if (err) - DRM_ERROR("failed to set aclk.\n"); + drm_err(drm, "failed to set aclk.\n"); err = clk_prepare_enable(mdev->aclk); if (err) - DRM_ERROR("failed to enable aclk.\n"); + drm_err(drm, "failed to enable aclk.\n"); } err = clk_set_rate(master->pxlclk, mode->crtc_clock * 1000); if (err) - DRM_ERROR("failed to set pxlclk for pipe%d\n", master->id); + drm_err(drm, "failed to set pxlclk for pipe%d\n", master->id); err = clk_prepare_enable(master->pxlclk); if (err) - DRM_ERROR("failed to enable pxl clk for pipe%d.\n", master->id); + drm_err(drm, "failed to enable pxl clk for pipe%d.\n", master->id); unlock: mutex_unlock(&mdev->lock); @@ -161,6 +165,7 @@ unlock: static int komeda_crtc_unprepare(struct komeda_crtc *kcrtc) { + struct drm_device *drm = kcrtc->base.dev; struct komeda_dev *mdev = kcrtc->base.dev->dev_private; struct komeda_pipeline *master = kcrtc->master; u32 new_mode; @@ -177,8 +182,8 @@ komeda_crtc_unprepare(struct komeda_crtc *kcrtc) err = mdev->funcs->change_opmode(mdev, new_mode); if (err) { - DRM_ERROR("failed to change opmode: 0x%x -> 0x%x.\n,", - mdev->dpmode, new_mode); + drm_err(drm, "failed to change opmode: 0x%x -> 0x%x.\n,", + mdev->dpmode, new_mode); goto unlock; } @@ -197,6 +202,7 @@ unlock: void komeda_crtc_handle_event(struct komeda_crtc *kcrtc, struct komeda_events *evts) { + struct drm_device *drm = kcrtc->base.dev; struct drm_crtc *crtc = &kcrtc->base; u32 events = evts->pipes[kcrtc->master->id]; @@ -209,7 +215,7 @@ void komeda_crtc_handle_event(struct komeda_crtc *kcrtc, if (wb_conn) drm_writeback_signal_completion(&wb_conn->base, 0); else - DRM_WARN("CRTC[%d]: EOW happen but no wb_connector.\n", + drm_warn(drm, "CRTC[%d]: EOW happen but no wb_connector.\n", drm_crtc_index(&kcrtc->base)); } /* will handle it together with the write back support */ @@ -233,7 +239,7 @@ void komeda_crtc_handle_event(struct komeda_crtc *kcrtc, crtc->state->event = NULL; drm_crtc_send_vblank_event(crtc, event); } else { - DRM_WARN("CRTC[%d]: FLIP happen but no pending commit.\n", + drm_warn(drm, "CRTC[%d]: FLIP happened but no pending commit.\n", drm_crtc_index(&kcrtc->base)); } spin_unlock_irqrestore(&crtc->dev->event_lock, flags); @@ -273,8 +279,10 @@ komeda_crtc_do_flush(struct drm_crtc *crtc, static void komeda_crtc_atomic_enable(struct drm_crtc *crtc, - struct drm_crtc_state *old) + struct drm_atomic_state *state) { + struct drm_crtc_state *old = drm_atomic_get_old_crtc_state(state, + crtc); pm_runtime_get_sync(crtc->dev->dev); komeda_crtc_prepare(to_kcrtc(crtc)); drm_crtc_vblank_on(crtc); @@ -282,7 +290,7 @@ komeda_crtc_atomic_enable(struct drm_crtc *crtc, komeda_crtc_do_flush(crtc, old); } -static void +void komeda_crtc_flush_and_wait_for_flip_done(struct komeda_crtc *kcrtc, struct completion *input_flip_done) { @@ -290,7 +298,6 @@ komeda_crtc_flush_and_wait_for_flip_done(struct komeda_crtc *kcrtc, struct komeda_dev *mdev = kcrtc->master->mdev; struct completion *flip_done; struct completion temp; - int timeout; /* if caller doesn't send a flip_done, use a private flip_done */ if (input_flip_done) { @@ -304,9 +311,8 @@ komeda_crtc_flush_and_wait_for_flip_done(struct komeda_crtc *kcrtc, mdev->funcs->flush(mdev, kcrtc->master->id, 0); /* wait the flip take affect.*/ - timeout = wait_for_completion_timeout(flip_done, HZ); - if (timeout == 0) { - DRM_ERROR("wait pipe%d flip done timeout\n", kcrtc->master->id); + if (wait_for_completion_timeout(flip_done, HZ) == 0) { + drm_err(drm, "wait pipe%d flip done timeout\n", kcrtc->master->id); if (!input_flip_done) { unsigned long flags; @@ -319,8 +325,10 @@ komeda_crtc_flush_and_wait_for_flip_done(struct komeda_crtc *kcrtc, static void komeda_crtc_atomic_disable(struct drm_crtc *crtc, - struct drm_crtc_state *old) + struct drm_atomic_state *state) { + struct drm_crtc_state *old = drm_atomic_get_old_crtc_state(state, + crtc); struct komeda_crtc *kcrtc = to_kcrtc(crtc); struct komeda_crtc_state *old_st = to_kcrtc_st(old); struct komeda_pipeline *master = kcrtc->master; @@ -379,10 +387,14 @@ komeda_crtc_atomic_disable(struct drm_crtc *crtc, static void komeda_crtc_atomic_flush(struct drm_crtc *crtc, - struct drm_crtc_state *old) + struct drm_atomic_state *state) { + struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state, + crtc); + struct drm_crtc_state *old = drm_atomic_get_old_crtc_state(state, + crtc); /* commit with modeset will be handled in enable/disable */ - if (drm_atomic_crtc_needs_modeset(crtc->state)) + if (drm_atomic_crtc_needs_modeset(crtc_state)) return; komeda_crtc_do_flush(crtc, old); @@ -492,10 +504,8 @@ static void komeda_crtc_reset(struct drm_crtc *crtc) crtc->state = NULL; state = kzalloc(sizeof(*state), GFP_KERNEL); - if (state) { - crtc->state = &state->base; - crtc->state->crtc = crtc; - } + if (state) + __drm_atomic_helper_crtc_reset(crtc, &state->base); } static struct drm_crtc_state * @@ -542,7 +552,6 @@ static void komeda_crtc_vblank_disable(struct drm_crtc *crtc) } static const struct drm_crtc_funcs komeda_crtc_funcs = { - .gamma_set = drm_atomic_helper_legacy_gamma_set, .destroy = drm_crtc_cleanup, .set_config = drm_atomic_helper_set_config, .page_flip = drm_atomic_helper_page_flip, @@ -556,6 +565,7 @@ static const struct drm_crtc_funcs komeda_crtc_funcs = { int komeda_kms_setup_crtcs(struct komeda_kms_dev *kms, struct komeda_dev *mdev) { + struct drm_device *drm = &kms->base; struct komeda_crtc *crtc; struct komeda_pipeline *master; char str[16]; @@ -575,7 +585,7 @@ int komeda_kms_setup_crtcs(struct komeda_kms_dev *kms, else sprintf(str, "None"); - DRM_INFO("CRTC-%d: master(pipe-%d) slave(%s).\n", + drm_info(drm, "CRTC-%d: master(pipe-%d) slave(%s).\n", kms->n_crtcs, master->id, str); kms->n_crtcs++; @@ -603,26 +613,66 @@ get_crtc_primary(struct komeda_kms_dev *kms, struct komeda_crtc *crtc) return NULL; } +static int komeda_attach_bridge(struct device *dev, + struct komeda_pipeline *pipe, + struct drm_encoder *encoder) +{ + struct drm_device *drm = encoder->dev; + struct drm_bridge *bridge; + int err; + + bridge = devm_drm_of_get_bridge(dev, pipe->of_node, + KOMEDA_OF_PORT_OUTPUT, 0); + if (IS_ERR(bridge)) + return dev_err_probe(dev, PTR_ERR(bridge), "remote bridge not found for pipe: %s\n", + of_node_full_name(pipe->of_node)); + + err = drm_bridge_attach(encoder, bridge, NULL, 0); + if (err) + drm_err(drm, "bridge_attach() failed for pipe: %s\n", + of_node_full_name(pipe->of_node)); + + return err; +} + static int komeda_crtc_add(struct komeda_kms_dev *kms, struct komeda_crtc *kcrtc) { struct drm_crtc *crtc = &kcrtc->base; + struct drm_device *base = &kms->base; + struct komeda_pipeline *pipe = kcrtc->master; + struct drm_encoder *encoder = &kcrtc->encoder; int err; - err = drm_crtc_init_with_planes(&kms->base, crtc, + err = drm_crtc_init_with_planes(base, crtc, get_crtc_primary(kms, kcrtc), NULL, &komeda_crtc_funcs, NULL); if (err) return err; drm_crtc_helper_add(crtc, &komeda_crtc_helper_funcs); - drm_crtc_vblank_reset(crtc); - crtc->port = kcrtc->master->of_output_port; + crtc->port = pipe->of_output_port; + + /* Construct an encoder for each pipeline and attach it to the remote + * bridge + */ + kcrtc->encoder.possible_crtcs = drm_crtc_mask(crtc); + err = drm_simple_encoder_init(base, encoder, DRM_MODE_ENCODER_TMDS); + if (err) + return err; + + if (pipe->of_output_links[0]) { + err = komeda_attach_bridge(base->dev, pipe, encoder); + if (err) + return err; + } drm_crtc_enable_color_mgmt(crtc, 0, true, KOMEDA_COLOR_LUT_SIZE); - return err; + komeda_pipeline_dump(pipe); + + return 0; } int komeda_kms_add_crtcs(struct komeda_kms_dev *kms, struct komeda_dev *mdev) |