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![Michal Wajdeczko](/assets/img/avatar_default.png)
With i915 added to i915_inject_probe_failure we can use dedicated printk when injecting artificial load failure. Also make this function look like other i915 functions that return error code and make it more flexible to return any provided error code instead of previously assumed -ENODEV. Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20190802184055.31988-2-michal.wajdeczko@intel.com
283 lines
7.5 KiB
C
283 lines
7.5 KiB
C
/*
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* Copyright (c) 2007 Dave Airlie <airlied@linux.ie>
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* Copyright (c) 2007, 2010 Intel Corporation
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* Jesse Barnes <jesse.barnes@intel.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#include <linux/i2c.h>
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#include <linux/slab.h>
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#include <drm/drm_atomic_helper.h>
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#include <drm/drm_edid.h>
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#include "display/intel_panel.h"
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#include "i915_drv.h"
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#include "intel_connector.h"
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#include "intel_drv.h"
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#include "intel_hdcp.h"
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int intel_connector_init(struct intel_connector *connector)
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{
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struct intel_digital_connector_state *conn_state;
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/*
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* Allocate enough memory to hold intel_digital_connector_state,
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* This might be a few bytes too many, but for connectors that don't
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* need it we'll free the state and allocate a smaller one on the first
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* successful commit anyway.
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*/
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conn_state = kzalloc(sizeof(*conn_state), GFP_KERNEL);
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if (!conn_state)
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return -ENOMEM;
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__drm_atomic_helper_connector_reset(&connector->base,
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&conn_state->base);
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return 0;
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}
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struct intel_connector *intel_connector_alloc(void)
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{
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struct intel_connector *connector;
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connector = kzalloc(sizeof(*connector), GFP_KERNEL);
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if (!connector)
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return NULL;
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if (intel_connector_init(connector) < 0) {
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kfree(connector);
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return NULL;
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}
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return connector;
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}
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/*
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* Free the bits allocated by intel_connector_alloc.
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* This should only be used after intel_connector_alloc has returned
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* successfully, and before drm_connector_init returns successfully.
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* Otherwise the destroy callbacks for the connector and the state should
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* take care of proper cleanup/free (see intel_connector_destroy).
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*/
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void intel_connector_free(struct intel_connector *connector)
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{
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kfree(to_intel_digital_connector_state(connector->base.state));
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kfree(connector);
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}
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/*
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* Connector type independent destroy hook for drm_connector_funcs.
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*/
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void intel_connector_destroy(struct drm_connector *connector)
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{
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struct intel_connector *intel_connector = to_intel_connector(connector);
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kfree(intel_connector->detect_edid);
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intel_hdcp_cleanup(intel_connector);
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if (!IS_ERR_OR_NULL(intel_connector->edid))
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kfree(intel_connector->edid);
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intel_panel_fini(&intel_connector->panel);
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drm_connector_cleanup(connector);
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if (intel_connector->port)
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drm_dp_mst_put_port_malloc(intel_connector->port);
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kfree(connector);
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}
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int intel_connector_register(struct drm_connector *connector)
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{
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struct intel_connector *intel_connector = to_intel_connector(connector);
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int ret;
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ret = intel_backlight_device_register(intel_connector);
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if (ret)
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goto err;
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if (i915_inject_probe_failure(to_i915(connector->dev))) {
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ret = -EFAULT;
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goto err_backlight;
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}
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return 0;
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err_backlight:
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intel_backlight_device_unregister(intel_connector);
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err:
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return ret;
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}
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void intel_connector_unregister(struct drm_connector *connector)
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{
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struct intel_connector *intel_connector = to_intel_connector(connector);
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intel_backlight_device_unregister(intel_connector);
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}
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void intel_connector_attach_encoder(struct intel_connector *connector,
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struct intel_encoder *encoder)
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{
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connector->encoder = encoder;
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drm_connector_attach_encoder(&connector->base, &encoder->base);
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}
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/*
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* Simple connector->get_hw_state implementation for encoders that support only
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* one connector and no cloning and hence the encoder state determines the state
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* of the connector.
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*/
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bool intel_connector_get_hw_state(struct intel_connector *connector)
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{
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enum pipe pipe = 0;
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struct intel_encoder *encoder = connector->encoder;
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return encoder->get_hw_state(encoder, &pipe);
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}
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enum pipe intel_connector_get_pipe(struct intel_connector *connector)
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{
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struct drm_device *dev = connector->base.dev;
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WARN_ON(!drm_modeset_is_locked(&dev->mode_config.connection_mutex));
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if (!connector->base.state->crtc)
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return INVALID_PIPE;
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return to_intel_crtc(connector->base.state->crtc)->pipe;
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}
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/**
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* intel_connector_update_modes - update connector from edid
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* @connector: DRM connector device to use
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* @edid: previously read EDID information
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*/
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int intel_connector_update_modes(struct drm_connector *connector,
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struct edid *edid)
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{
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int ret;
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drm_connector_update_edid_property(connector, edid);
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ret = drm_add_edid_modes(connector, edid);
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return ret;
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}
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/**
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* intel_ddc_get_modes - get modelist from monitor
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* @connector: DRM connector device to use
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* @adapter: i2c adapter
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*
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* Fetch the EDID information from @connector using the DDC bus.
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*/
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int intel_ddc_get_modes(struct drm_connector *connector,
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struct i2c_adapter *adapter)
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{
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struct edid *edid;
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int ret;
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edid = drm_get_edid(connector, adapter);
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if (!edid)
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return 0;
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ret = intel_connector_update_modes(connector, edid);
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kfree(edid);
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return ret;
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}
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static const struct drm_prop_enum_list force_audio_names[] = {
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{ HDMI_AUDIO_OFF_DVI, "force-dvi" },
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{ HDMI_AUDIO_OFF, "off" },
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{ HDMI_AUDIO_AUTO, "auto" },
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{ HDMI_AUDIO_ON, "on" },
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};
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void
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intel_attach_force_audio_property(struct drm_connector *connector)
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{
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struct drm_device *dev = connector->dev;
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struct drm_i915_private *dev_priv = to_i915(dev);
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struct drm_property *prop;
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prop = dev_priv->force_audio_property;
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if (prop == NULL) {
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prop = drm_property_create_enum(dev, 0,
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"audio",
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force_audio_names,
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ARRAY_SIZE(force_audio_names));
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if (prop == NULL)
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return;
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dev_priv->force_audio_property = prop;
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}
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drm_object_attach_property(&connector->base, prop, 0);
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}
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static const struct drm_prop_enum_list broadcast_rgb_names[] = {
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{ INTEL_BROADCAST_RGB_AUTO, "Automatic" },
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{ INTEL_BROADCAST_RGB_FULL, "Full" },
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{ INTEL_BROADCAST_RGB_LIMITED, "Limited 16:235" },
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};
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void
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intel_attach_broadcast_rgb_property(struct drm_connector *connector)
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{
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struct drm_device *dev = connector->dev;
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struct drm_i915_private *dev_priv = to_i915(dev);
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struct drm_property *prop;
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prop = dev_priv->broadcast_rgb_property;
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if (prop == NULL) {
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prop = drm_property_create_enum(dev, DRM_MODE_PROP_ENUM,
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"Broadcast RGB",
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broadcast_rgb_names,
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ARRAY_SIZE(broadcast_rgb_names));
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if (prop == NULL)
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return;
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dev_priv->broadcast_rgb_property = prop;
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}
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drm_object_attach_property(&connector->base, prop, 0);
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}
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void
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intel_attach_aspect_ratio_property(struct drm_connector *connector)
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{
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if (!drm_mode_create_aspect_ratio_property(connector->dev))
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drm_object_attach_property(&connector->base,
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connector->dev->mode_config.aspect_ratio_property,
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DRM_MODE_PICTURE_ASPECT_NONE);
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}
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void
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intel_attach_colorspace_property(struct drm_connector *connector)
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{
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if (!drm_mode_create_colorspace_property(connector))
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drm_object_attach_property(&connector->base,
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connector->colorspace_property, 0);
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}
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