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30169bb645
Backmerge Linus tree for some drm-fixes needed for msm and xe merges. Signed-off-by: Dave Airlie <airlied@redhat.com>
126 lines
3.2 KiB
C
126 lines
3.2 KiB
C
// SPDX-License-Identifier: MIT
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#include <drm/drm_atomic_state_helper.h>
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#include <drm/drm_edid.h>
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#include <drm/drm_modeset_helper_vtables.h>
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#include <drm/drm_print.h>
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#include <drm/drm_probe_helper.h>
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#include "ast_ddc.h"
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#include "ast_drv.h"
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/*
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* Encoder
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*/
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static const struct drm_encoder_funcs ast_vga_encoder_funcs = {
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.destroy = drm_encoder_cleanup,
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};
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/*
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* Connector
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*/
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static int ast_vga_connector_helper_get_modes(struct drm_connector *connector)
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{
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struct ast_connector *ast_connector = to_ast_connector(connector);
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int count;
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if (ast_connector->physical_status == connector_status_connected) {
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count = drm_connector_helper_get_modes(connector);
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} else {
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drm_edid_connector_update(connector, NULL);
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/*
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* There's no EDID data without a connected monitor. Set BMC-
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* compatible modes in this case. The XGA default resolution
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* should work well for all BMCs.
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*/
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count = drm_add_modes_noedid(connector, 4096, 4096);
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if (count)
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drm_set_preferred_mode(connector, 1024, 768);
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}
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return count;
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}
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static int ast_vga_connector_helper_detect_ctx(struct drm_connector *connector,
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struct drm_modeset_acquire_ctx *ctx,
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bool force)
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{
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struct ast_connector *ast_connector = to_ast_connector(connector);
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enum drm_connector_status status;
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status = drm_connector_helper_detect_from_ddc(connector, ctx, force);
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if (status != ast_connector->physical_status)
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++connector->epoch_counter;
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ast_connector->physical_status = status;
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return connector_status_connected;
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}
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static const struct drm_connector_helper_funcs ast_vga_connector_helper_funcs = {
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.get_modes = ast_vga_connector_helper_get_modes,
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.detect_ctx = ast_vga_connector_helper_detect_ctx,
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};
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static const struct drm_connector_funcs ast_vga_connector_funcs = {
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.reset = drm_atomic_helper_connector_reset,
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.fill_modes = drm_helper_probe_single_connector_modes,
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.destroy = drm_connector_cleanup,
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.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
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.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
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};
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/*
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* Output
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*/
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int ast_vga_output_init(struct ast_device *ast)
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{
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struct drm_device *dev = &ast->base;
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struct drm_crtc *crtc = &ast->crtc;
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struct i2c_adapter *ddc;
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struct drm_encoder *encoder;
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struct ast_connector *ast_connector;
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struct drm_connector *connector;
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int ret;
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/* DDC */
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ddc = ast_ddc_create(ast);
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if (IS_ERR(ddc))
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return PTR_ERR(ddc);
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/* encoder */
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encoder = &ast->output.vga.encoder;
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ret = drm_encoder_init(dev, encoder, &ast_vga_encoder_funcs,
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DRM_MODE_ENCODER_DAC, NULL);
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if (ret)
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return ret;
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encoder->possible_crtcs = drm_crtc_mask(crtc);
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/* connector */
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ast_connector = &ast->output.vga.connector;
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connector = &ast_connector->base;
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ret = drm_connector_init_with_ddc(dev, connector, &ast_vga_connector_funcs,
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DRM_MODE_CONNECTOR_VGA, ddc);
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if (ret)
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return ret;
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drm_connector_helper_add(connector, &ast_vga_connector_helper_funcs);
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connector->interlace_allowed = 0;
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connector->doublescan_allowed = 0;
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connector->polled = DRM_CONNECTOR_POLL_CONNECT | DRM_CONNECTOR_POLL_DISCONNECT;
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ast_connector->physical_status = connector->status;
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ret = drm_connector_attach_encoder(connector, encoder);
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if (ret)
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return ret;
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return 0;
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}
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