1 // SPDX-License-Identifier: GPL-2.0-only
3  * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
22 /* The encoder and connector both map to same dssdev.. the encoder
24  * of the hw, and the connector handles the 'read-only' parts, like
44 static void omap_encoder_update_videomode_flags(struct videomode *vm,  in omap_encoder_update_videomode_flags()  argument
47 	if (!(vm->flags & (DISPLAY_FLAGS_DE_LOW |  in omap_encoder_update_videomode_flags()
50 			vm->flags |= DISPLAY_FLAGS_DE_LOW;  in omap_encoder_update_videomode_flags()
52 			vm->flags |= DISPLAY_FLAGS_DE_HIGH;  in omap_encoder_update_videomode_flags()
55 	if (!(vm->flags & (DISPLAY_FLAGS_PIXDATA_POSEDGE |  in omap_encoder_update_videomode_flags()
58 			vm->flags |= DISPLAY_FLAGS_PIXDATA_POSEDGE;  in omap_encoder_update_videomode_flags()
60 			vm->flags |= DISPLAY_FLAGS_PIXDATA_NEGEDGE;  in omap_encoder_update_videomode_flags()
63 	if (!(vm->flags & (DISPLAY_FLAGS_SYNC_POSEDGE |  in omap_encoder_update_videomode_flags()
66 			vm->flags |= DISPLAY_FLAGS_SYNC_POSEDGE;  in omap_encoder_update_videomode_flags()
68 			vm->flags |= DISPLAY_FLAGS_SYNC_NEGEDGE;  in omap_encoder_update_videomode_flags()
77 	struct omap_dss_device *output = omap_encoder->output;  in omap_encoder_mode_set()
79 	struct drm_device *dev = encoder->dev;  in omap_encoder_mode_set()
82 	struct videomode vm = { 0 };  in omap_encoder_mode_set()  local
85 	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {  in omap_encoder_mode_set()
86 		if (connector->encoder == encoder)  in omap_encoder_mode_set()
90 	drm_display_mode_to_videomode(adjusted_mode, &vm);  in omap_encoder_mode_set()
93 	 * HACK: This fixes the vm flags.  in omap_encoder_mode_set()
99 	 * A better solution is to use DRM's bus-flags through the whole driver.  in omap_encoder_mode_set()
101 	for (dssdev = output; dssdev; dssdev = dssdev->next)  in omap_encoder_mode_set()
102 		omap_encoder_update_videomode_flags(&vm, dssdev->bus_flags);  in omap_encoder_mode_set()
104 	for (bridge = output->bridge; bridge;  in omap_encoder_mode_set()
106 		if (!bridge->timings)  in omap_encoder_mode_set()
109 		bus_flags = bridge->timings->input_bus_flags;  in omap_encoder_mode_set()
110 		omap_encoder_update_videomode_flags(&vm, bus_flags);  in omap_encoder_mode_set()
113 	bus_flags = connector->display_info.bus_flags;  in omap_encoder_mode_set()
114 	omap_encoder_update_videomode_flags(&vm, bus_flags);  in omap_encoder_mode_set()
117 	dss_mgr_set_timings(output, &vm);  in omap_encoder_mode_set()
123 	struct omap_dss_device *dssdev = omap_encoder->output;  in omap_encoder_disable()
124 	struct drm_device *dev = encoder->dev;  in omap_encoder_disable()
126 	dev_dbg(dev->dev, "disable(%s)\n", dssdev->name);  in omap_encoder_disable()
131 	 * dssdev->next is NULL for all other outputs.  in omap_encoder_disable()
133 	omapdss_device_disable(dssdev->next);  in omap_encoder_disable()
139 	struct omap_dss_device *dssdev = omap_encoder->output;  in omap_encoder_enable()
140 	struct drm_device *dev = encoder->dev;  in omap_encoder_enable()
142 	dev_dbg(dev->dev, "enable(%s)\n", dssdev->name);  in omap_encoder_enable()
147 	 * dssdev->next is NULL for all other outputs.  in omap_encoder_enable()
149 	omapdss_device_enable(dssdev->next);  in omap_encoder_enable()
159 	status = omap_connector_mode_fixup(omap_encoder->output,  in omap_encoder_atomic_check()
160 					   &crtc_state->mode,  in omap_encoder_atomic_check()
161 					   &crtc_state->adjusted_mode);  in omap_encoder_atomic_check()
163 		dev_err(encoder->dev->dev, "invalid timings: %d\n", status);  in omap_encoder_atomic_check()
164 		return -EINVAL;  in omap_encoder_atomic_check()
188 	omap_encoder->output = output;  in omap_encoder_init()
190 	encoder = &omap_encoder->base;  in omap_encoder_init()