From 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 27 Apr 2024 12:05:51 +0200 Subject: Adding upstream version 5.10.209. Signed-off-by: Daniel Baumann --- drivers/gpu/drm/tidss/tidss_kms.c | 285 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 285 insertions(+) create mode 100644 drivers/gpu/drm/tidss/tidss_kms.c (limited to 'drivers/gpu/drm/tidss/tidss_kms.c') diff --git a/drivers/gpu/drm/tidss/tidss_kms.c b/drivers/gpu/drm/tidss/tidss_kms.c new file mode 100644 index 000000000..09485c7f0 --- /dev/null +++ b/drivers/gpu/drm/tidss/tidss_kms.c @@ -0,0 +1,285 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2018 Texas Instruments Incorporated - https://www.ti.com/ + * Author: Tomi Valkeinen + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "tidss_crtc.h" +#include "tidss_dispc.h" +#include "tidss_drv.h" +#include "tidss_encoder.h" +#include "tidss_kms.h" +#include "tidss_plane.h" + +static void tidss_atomic_commit_tail(struct drm_atomic_state *old_state) +{ + struct drm_device *ddev = old_state->dev; + struct tidss_device *tidss = to_tidss(ddev); + + dev_dbg(ddev->dev, "%s\n", __func__); + + tidss_runtime_get(tidss); + + drm_atomic_helper_commit_modeset_disables(ddev, old_state); + drm_atomic_helper_commit_planes(ddev, old_state, 0); + drm_atomic_helper_commit_modeset_enables(ddev, old_state); + + drm_atomic_helper_commit_hw_done(old_state); + drm_atomic_helper_wait_for_flip_done(ddev, old_state); + + drm_atomic_helper_cleanup_planes(ddev, old_state); + + tidss_runtime_put(tidss); +} + +static const struct drm_mode_config_helper_funcs mode_config_helper_funcs = { + .atomic_commit_tail = tidss_atomic_commit_tail, +}; + +static int tidss_atomic_check(struct drm_device *ddev, + struct drm_atomic_state *state) +{ + struct drm_plane_state *opstate; + struct drm_plane_state *npstate; + struct drm_plane *plane; + struct drm_crtc_state *cstate; + struct drm_crtc *crtc; + int ret, i; + + ret = drm_atomic_helper_check(ddev, state); + if (ret) + return ret; + + /* + * Add all active planes on a CRTC to the atomic state, if + * x/y/z position or activity of any plane on that CRTC + * changes. This is needed for updating the plane positions in + * tidss_crtc_position_planes() which is called from + * crtc_atomic_enable() and crtc_atomic_flush(). We have an + * extra flag to to mark x,y-position changes and together + * with zpos_changed the condition recognizes all the above + * cases. + */ + for_each_oldnew_plane_in_state(state, plane, opstate, npstate, i) { + if (!npstate->crtc || !npstate->visible) + continue; + + if (!opstate->crtc || opstate->crtc_x != npstate->crtc_x || + opstate->crtc_y != npstate->crtc_y) { + cstate = drm_atomic_get_crtc_state(state, + npstate->crtc); + if (IS_ERR(cstate)) + return PTR_ERR(cstate); + to_tidss_crtc_state(cstate)->plane_pos_changed = true; + } + } + + for_each_new_crtc_in_state(state, crtc, cstate, i) { + if (to_tidss_crtc_state(cstate)->plane_pos_changed || + cstate->zpos_changed) { + ret = drm_atomic_add_affected_planes(state, crtc); + if (ret) + return ret; + } + } + + return 0; +} + +static const struct drm_mode_config_funcs mode_config_funcs = { + .fb_create = drm_gem_fb_create, + .atomic_check = tidss_atomic_check, + .atomic_commit = drm_atomic_helper_commit, +}; + +static int tidss_dispc_modeset_init(struct tidss_device *tidss) +{ + struct device *dev = tidss->dev; + unsigned int fourccs_len; + const u32 *fourccs = dispc_plane_formats(tidss->dispc, &fourccs_len); + unsigned int i; + + struct pipe { + u32 hw_videoport; + struct drm_bridge *bridge; + u32 enc_type; + }; + + const struct dispc_features *feat = tidss->feat; + u32 max_vps = feat->num_vps; + u32 max_planes = feat->num_planes; + + struct pipe pipes[TIDSS_MAX_PORTS]; + u32 num_pipes = 0; + u32 crtc_mask; + + /* first find all the connected panels & bridges */ + + for (i = 0; i < max_vps; i++) { + struct drm_panel *panel; + struct drm_bridge *bridge; + u32 enc_type = DRM_MODE_ENCODER_NONE; + int ret; + + ret = drm_of_find_panel_or_bridge(dev->of_node, i, 0, + &panel, &bridge); + if (ret == -ENODEV) { + dev_dbg(dev, "no panel/bridge for port %d\n", i); + continue; + } else if (ret) { + dev_dbg(dev, "port %d probe returned %d\n", i, ret); + return ret; + } + + if (panel) { + u32 conn_type; + + dev_dbg(dev, "Setting up panel for port %d\n", i); + + switch (feat->vp_bus_type[i]) { + case DISPC_VP_OLDI: + enc_type = DRM_MODE_ENCODER_LVDS; + conn_type = DRM_MODE_CONNECTOR_LVDS; + break; + case DISPC_VP_DPI: + enc_type = DRM_MODE_ENCODER_DPI; + conn_type = DRM_MODE_CONNECTOR_DPI; + break; + default: + WARN_ON(1); + return -EINVAL; + } + + if (panel->connector_type != conn_type) { + dev_err(dev, + "%s: Panel %s has incompatible connector type for vp%d (%d != %d)\n", + __func__, dev_name(panel->dev), i, + panel->connector_type, conn_type); + return -EINVAL; + } + + bridge = devm_drm_panel_bridge_add(dev, panel); + if (IS_ERR(bridge)) { + dev_err(dev, + "failed to set up panel bridge for port %d\n", + i); + return PTR_ERR(bridge); + } + } + + pipes[num_pipes].hw_videoport = i; + pipes[num_pipes].bridge = bridge; + pipes[num_pipes].enc_type = enc_type; + num_pipes++; + } + + /* all planes can be on any crtc */ + crtc_mask = (1 << num_pipes) - 1; + + /* then create a plane, a crtc and an encoder for each panel/bridge */ + + for (i = 0; i < num_pipes; ++i) { + struct tidss_plane *tplane; + struct tidss_crtc *tcrtc; + struct drm_encoder *enc; + u32 hw_plane_id = feat->vid_order[tidss->num_planes]; + int ret; + + tplane = tidss_plane_create(tidss, hw_plane_id, + DRM_PLANE_TYPE_PRIMARY, crtc_mask, + fourccs, fourccs_len); + if (IS_ERR(tplane)) { + dev_err(tidss->dev, "plane create failed\n"); + return PTR_ERR(tplane); + } + + tidss->planes[tidss->num_planes++] = &tplane->plane; + + tcrtc = tidss_crtc_create(tidss, pipes[i].hw_videoport, + &tplane->plane); + if (IS_ERR(tcrtc)) { + dev_err(tidss->dev, "crtc create failed\n"); + return PTR_ERR(tcrtc); + } + + tidss->crtcs[tidss->num_crtcs++] = &tcrtc->crtc; + + enc = tidss_encoder_create(tidss, pipes[i].enc_type, + 1 << tcrtc->crtc.index); + if (IS_ERR(enc)) { + dev_err(tidss->dev, "encoder create failed\n"); + return PTR_ERR(enc); + } + + ret = drm_bridge_attach(enc, pipes[i].bridge, NULL, 0); + if (ret) { + dev_err(tidss->dev, "bridge attach failed: %d\n", ret); + return ret; + } + } + + /* create overlay planes of the leftover planes */ + + while (tidss->num_planes < max_planes) { + struct tidss_plane *tplane; + u32 hw_plane_id = feat->vid_order[tidss->num_planes]; + + tplane = tidss_plane_create(tidss, hw_plane_id, + DRM_PLANE_TYPE_OVERLAY, crtc_mask, + fourccs, fourccs_len); + + if (IS_ERR(tplane)) { + dev_err(tidss->dev, "plane create failed\n"); + return PTR_ERR(tplane); + } + + tidss->planes[tidss->num_planes++] = &tplane->plane; + } + + return 0; +} + +int tidss_modeset_init(struct tidss_device *tidss) +{ + struct drm_device *ddev = &tidss->ddev; + int ret; + + dev_dbg(tidss->dev, "%s\n", __func__); + + ret = drmm_mode_config_init(ddev); + if (ret) + return ret; + + ddev->mode_config.min_width = 8; + ddev->mode_config.min_height = 8; + ddev->mode_config.max_width = 8096; + ddev->mode_config.max_height = 8096; + ddev->mode_config.normalize_zpos = true; + ddev->mode_config.funcs = &mode_config_funcs; + ddev->mode_config.helper_private = &mode_config_helper_funcs; + + ret = tidss_dispc_modeset_init(tidss); + if (ret) + return ret; + + ret = drm_vblank_init(ddev, tidss->num_crtcs); + if (ret) + return ret; + + drm_mode_config_reset(ddev); + + dev_dbg(tidss->dev, "%s done\n", __func__); + + return 0; +} -- cgit v1.2.3