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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 | // SPDX-License-Identifier: GPL-2.0-only /* * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/ * Author: Rob Clark <rob@ti.com> */ #include <drm/drm_atomic_helper.h> #include <drm/drm_crtc.h> #include <drm/drm_probe_helper.h> #include "omap_drv.h" /* * connector funcs */ #define to_omap_connector(x) container_of(x, struct omap_connector, base) struct omap_connector { struct drm_connector base; struct omap_dss_device *output; }; static enum drm_connector_status omap_connector_detect( struct drm_connector *connector, bool force) { return connector_status_connected; } static void omap_connector_destroy(struct drm_connector *connector) { struct omap_connector *omap_connector = to_omap_connector(connector); DBG("%s", connector->name); drm_connector_unregister(connector); drm_connector_cleanup(connector); omapdss_device_put(omap_connector->output); kfree(omap_connector); } static int omap_connector_get_modes(struct drm_connector *connector) { struct omap_connector *omap_connector = to_omap_connector(connector); struct omap_dss_device *dssdev = NULL; struct omap_dss_device *d; DBG("%s", connector->name); /* * If the display pipeline reports modes (e.g. with a fixed resolution * panel or an analog TV output), query it. */ for (d = omap_connector->output; d; d = d->next) { if (d->ops_flags & OMAP_DSS_DEVICE_OP_MODES) dssdev = d; } if (dssdev) return dssdev->ops->get_modes(dssdev, connector); /* We can't retrieve modes. The KMS core will add the default modes. */ return 0; } enum drm_mode_status omap_connector_mode_fixup(struct omap_dss_device *dssdev, const struct drm_display_mode *mode, struct drm_display_mode *adjusted_mode) { int ret; drm_mode_copy(adjusted_mode, mode); for (; dssdev; dssdev = dssdev->next) { if (!dssdev->ops || !dssdev->ops->check_timings) continue; ret = dssdev->ops->check_timings(dssdev, adjusted_mode); if (ret) return MODE_BAD; } return MODE_OK; } static enum drm_mode_status omap_connector_mode_valid(struct drm_connector *connector, struct drm_display_mode *mode) { struct omap_connector *omap_connector = to_omap_connector(connector); struct drm_display_mode new_mode = {}; enum drm_mode_status status; status = omap_connector_mode_fixup(omap_connector->output, mode, &new_mode); if (status != MODE_OK) goto done; /* Check if vrefresh is still valid. */ if (drm_mode_vrefresh(mode) != drm_mode_vrefresh(&new_mode)) status = MODE_NOCLOCK; done: DBG("connector: mode %s: " DRM_MODE_FMT, (status == MODE_OK) ? "valid" : "invalid", DRM_MODE_ARG(mode)); return status; } static const struct drm_connector_funcs omap_connector_funcs = { .reset = drm_atomic_helper_connector_reset, .detect = omap_connector_detect, .fill_modes = drm_helper_probe_single_connector_modes, .destroy = omap_connector_destroy, .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, }; static const struct drm_connector_helper_funcs omap_connector_helper_funcs = { .get_modes = omap_connector_get_modes, .mode_valid = omap_connector_mode_valid, }; /* initialize connector */ struct drm_connector *omap_connector_init(struct drm_device *dev, struct omap_dss_device *output, struct drm_encoder *encoder) { struct drm_connector *connector = NULL; struct omap_connector *omap_connector; DBG("%s", output->name); omap_connector = kzalloc(sizeof(*omap_connector), GFP_KERNEL); if (!omap_connector) goto fail; omap_connector->output = omapdss_device_get(output); connector = &omap_connector->base; connector->interlace_allowed = 1; connector->doublescan_allowed = 0; drm_connector_init(dev, connector, &omap_connector_funcs, DRM_MODE_CONNECTOR_DSI); drm_connector_helper_add(connector, &omap_connector_helper_funcs); return connector; fail: if (connector) omap_connector_destroy(connector); return NULL; } |