2011-11-03 12:22:37 -06:00
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/*
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* Copyright © 2006-2011 Intel Corporation
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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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* Authors:
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* jim liu <jim.liu@intel.com>
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*
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* FIXME:
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* We should probably make this generic and share it with Medfield
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*/
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#include <drm/drmP.h>
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#include <drm/drm.h>
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#include <drm/drm_crtc.h>
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#include <drm/drm_edid.h>
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#include "psb_intel_drv.h"
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#include "psb_drv.h"
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#include "psb_intel_reg.h"
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2012-03-08 09:10:38 -07:00
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#include "cdv_device.h"
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2011-11-03 12:22:37 -06:00
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#include <linux/pm_runtime.h>
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/* hdmi control bits */
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#define HDMI_NULL_PACKETS_DURING_VSYNC (1 << 9)
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#define HDMI_BORDER_ENABLE (1 << 7)
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#define HDMI_AUDIO_ENABLE (1 << 6)
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#define HDMI_VSYNC_ACTIVE_HIGH (1 << 4)
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#define HDMI_HSYNC_ACTIVE_HIGH (1 << 3)
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/* hdmi-b control bits */
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#define HDMIB_PIPE_B_SELECT (1 << 30)
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struct mid_intel_hdmi_priv {
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u32 hdmi_reg;
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u32 save_HDMIB;
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bool has_hdmi_sink;
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bool has_hdmi_audio;
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/* Should set this when detect hotplug */
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bool hdmi_device_connected;
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struct mdfld_hdmi_i2c *i2c_bus;
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struct i2c_adapter *hdmi_i2c_adapter; /* for control functions */
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struct drm_device *dev;
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};
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static void cdv_hdmi_mode_set(struct drm_encoder *encoder,
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struct drm_display_mode *mode,
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struct drm_display_mode *adjusted_mode)
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{
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struct drm_device *dev = encoder->dev;
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2011-12-19 14:41:22 -07:00
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struct psb_intel_encoder *psb_intel_encoder = to_psb_intel_encoder(encoder);
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struct mid_intel_hdmi_priv *hdmi_priv = psb_intel_encoder->dev_priv;
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2011-11-03 12:22:37 -06:00
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u32 hdmib;
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struct drm_crtc *crtc = encoder->crtc;
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2013-07-21 17:31:23 -06:00
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struct gma_crtc *gma_crtc = to_gma_crtc(crtc);
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2011-11-03 12:22:37 -06:00
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hdmib = (2 << 10);
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if (adjusted_mode->flags & DRM_MODE_FLAG_PVSYNC)
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hdmib |= HDMI_VSYNC_ACTIVE_HIGH;
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if (adjusted_mode->flags & DRM_MODE_FLAG_PHSYNC)
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hdmib |= HDMI_HSYNC_ACTIVE_HIGH;
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2013-07-21 17:31:23 -06:00
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if (gma_crtc->pipe == 1)
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2011-11-03 12:22:37 -06:00
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hdmib |= HDMIB_PIPE_B_SELECT;
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if (hdmi_priv->has_hdmi_audio) {
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hdmib |= HDMI_AUDIO_ENABLE;
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hdmib |= HDMI_NULL_PACKETS_DURING_VSYNC;
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}
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REG_WRITE(hdmi_priv->hdmi_reg, hdmib);
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REG_READ(hdmi_priv->hdmi_reg);
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}
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static bool cdv_hdmi_mode_fixup(struct drm_encoder *encoder,
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2012-07-17 09:56:50 -06:00
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const struct drm_display_mode *mode,
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2011-11-03 12:22:37 -06:00
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struct drm_display_mode *adjusted_mode)
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{
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return true;
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}
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static void cdv_hdmi_dpms(struct drm_encoder *encoder, int mode)
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{
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struct drm_device *dev = encoder->dev;
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2011-12-19 14:41:22 -07:00
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struct psb_intel_encoder *psb_intel_encoder =
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to_psb_intel_encoder(encoder);
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struct mid_intel_hdmi_priv *hdmi_priv = psb_intel_encoder->dev_priv;
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2011-11-03 12:22:37 -06:00
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u32 hdmib;
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hdmib = REG_READ(hdmi_priv->hdmi_reg);
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if (mode != DRM_MODE_DPMS_ON)
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REG_WRITE(hdmi_priv->hdmi_reg, hdmib & ~HDMIB_PORT_EN);
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else
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REG_WRITE(hdmi_priv->hdmi_reg, hdmib | HDMIB_PORT_EN);
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REG_READ(hdmi_priv->hdmi_reg);
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}
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static void cdv_hdmi_save(struct drm_connector *connector)
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{
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struct drm_device *dev = connector->dev;
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2011-12-19 14:41:22 -07:00
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struct psb_intel_encoder *psb_intel_encoder =
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2013-07-10 17:02:01 -06:00
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gma_attached_encoder(connector);
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2011-12-19 14:41:22 -07:00
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struct mid_intel_hdmi_priv *hdmi_priv = psb_intel_encoder->dev_priv;
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2011-11-03 12:22:37 -06:00
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hdmi_priv->save_HDMIB = REG_READ(hdmi_priv->hdmi_reg);
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}
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static void cdv_hdmi_restore(struct drm_connector *connector)
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{
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struct drm_device *dev = connector->dev;
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2011-12-19 14:41:22 -07:00
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struct psb_intel_encoder *psb_intel_encoder =
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2013-07-10 17:02:01 -06:00
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gma_attached_encoder(connector);
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2011-12-19 14:41:22 -07:00
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struct mid_intel_hdmi_priv *hdmi_priv = psb_intel_encoder->dev_priv;
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2011-11-03 12:22:37 -06:00
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REG_WRITE(hdmi_priv->hdmi_reg, hdmi_priv->save_HDMIB);
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REG_READ(hdmi_priv->hdmi_reg);
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}
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static enum drm_connector_status cdv_hdmi_detect(
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struct drm_connector *connector, bool force)
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{
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2011-12-19 14:41:22 -07:00
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struct psb_intel_encoder *psb_intel_encoder =
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2013-07-10 17:02:01 -06:00
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gma_attached_encoder(connector);
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2011-12-19 14:41:22 -07:00
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struct mid_intel_hdmi_priv *hdmi_priv = psb_intel_encoder->dev_priv;
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2011-11-03 12:22:37 -06:00
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struct edid *edid = NULL;
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enum drm_connector_status status = connector_status_disconnected;
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2011-12-19 14:41:22 -07:00
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edid = drm_get_edid(connector, &psb_intel_encoder->i2c_bus->adapter);
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2011-11-03 12:22:37 -06:00
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hdmi_priv->has_hdmi_sink = false;
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hdmi_priv->has_hdmi_audio = false;
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if (edid) {
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if (edid->input & DRM_EDID_INPUT_DIGITAL) {
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status = connector_status_connected;
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hdmi_priv->has_hdmi_sink =
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drm_detect_hdmi_monitor(edid);
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hdmi_priv->has_hdmi_audio =
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drm_detect_monitor_audio(edid);
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}
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kfree(edid);
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}
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return status;
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}
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static int cdv_hdmi_set_property(struct drm_connector *connector,
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struct drm_property *property,
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uint64_t value)
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{
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struct drm_encoder *encoder = connector->encoder;
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if (!strcmp(property->name, "scaling mode") && encoder) {
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2013-07-21 17:31:23 -06:00
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struct gma_crtc *crtc = to_gma_crtc(encoder->crtc);
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2011-11-03 12:22:37 -06:00
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bool centre;
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uint64_t curValue;
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if (!crtc)
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return -1;
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switch (value) {
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case DRM_MODE_SCALE_FULLSCREEN:
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break;
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case DRM_MODE_SCALE_NO_SCALE:
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break;
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case DRM_MODE_SCALE_ASPECT:
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break;
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default:
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return -1;
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}
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2012-10-11 19:38:23 -06:00
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if (drm_object_property_get_value(&connector->base,
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2011-11-03 12:22:37 -06:00
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property, &curValue))
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return -1;
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if (curValue == value)
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return 0;
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2012-10-11 19:38:23 -06:00
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if (drm_object_property_set_value(&connector->base,
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2011-11-03 12:22:37 -06:00
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property, value))
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return -1;
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centre = (curValue == DRM_MODE_SCALE_NO_SCALE) ||
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(value == DRM_MODE_SCALE_NO_SCALE);
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if (crtc->saved_mode.hdisplay != 0 &&
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crtc->saved_mode.vdisplay != 0) {
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if (centre) {
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if (!drm_crtc_helper_set_mode(encoder->crtc, &crtc->saved_mode,
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encoder->crtc->x, encoder->crtc->y, encoder->crtc->fb))
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return -1;
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} else {
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struct drm_encoder_helper_funcs *helpers
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= encoder->helper_private;
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helpers->mode_set(encoder, &crtc->saved_mode,
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&crtc->saved_adjusted_mode);
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}
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}
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}
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return 0;
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}
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/*
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* Return the list of HDMI DDC modes if available.
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*/
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static int cdv_hdmi_get_modes(struct drm_connector *connector)
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{
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2011-12-19 14:41:22 -07:00
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struct psb_intel_encoder *psb_intel_encoder =
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2013-07-10 17:02:01 -06:00
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gma_attached_encoder(connector);
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2011-11-03 12:22:37 -06:00
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struct edid *edid = NULL;
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int ret = 0;
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2011-12-19 14:41:22 -07:00
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edid = drm_get_edid(connector, &psb_intel_encoder->i2c_bus->adapter);
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2011-11-03 12:22:37 -06:00
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if (edid) {
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2011-12-19 14:41:22 -07:00
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drm_mode_connector_update_edid_property(connector, edid);
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ret = drm_add_edid_modes(connector, edid);
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2011-11-03 12:22:37 -06:00
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kfree(edid);
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}
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return ret;
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}
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static int cdv_hdmi_mode_valid(struct drm_connector *connector,
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struct drm_display_mode *mode)
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{
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if (mode->clock > 165000)
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return MODE_CLOCK_HIGH;
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if (mode->clock < 20000)
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return MODE_CLOCK_HIGH;
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/* just in case */
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if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
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return MODE_NO_DBLESCAN;
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/* just in case */
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if (mode->flags & DRM_MODE_FLAG_INTERLACE)
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return MODE_NO_INTERLACE;
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return MODE_OK;
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}
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static void cdv_hdmi_destroy(struct drm_connector *connector)
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{
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2011-12-19 14:41:22 -07:00
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struct psb_intel_encoder *psb_intel_encoder =
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2013-07-10 17:02:01 -06:00
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gma_attached_encoder(connector);
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2011-11-03 12:22:37 -06:00
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2011-12-19 14:41:22 -07:00
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if (psb_intel_encoder->i2c_bus)
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psb_intel_i2c_destroy(psb_intel_encoder->i2c_bus);
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2011-11-03 12:22:37 -06:00
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drm_sysfs_connector_remove(connector);
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drm_connector_cleanup(connector);
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kfree(connector);
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}
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static const struct drm_encoder_helper_funcs cdv_hdmi_helper_funcs = {
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.dpms = cdv_hdmi_dpms,
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.mode_fixup = cdv_hdmi_mode_fixup,
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2013-07-10 17:02:01 -06:00
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.prepare = gma_encoder_prepare,
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2011-11-03 12:22:37 -06:00
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.mode_set = cdv_hdmi_mode_set,
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2013-07-10 17:02:01 -06:00
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.commit = gma_encoder_commit,
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2011-11-03 12:22:37 -06:00
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};
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static const struct drm_connector_helper_funcs
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cdv_hdmi_connector_helper_funcs = {
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.get_modes = cdv_hdmi_get_modes,
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.mode_valid = cdv_hdmi_mode_valid,
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2013-07-10 17:02:01 -06:00
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.best_encoder = gma_best_encoder,
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2011-11-03 12:22:37 -06:00
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};
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static const struct drm_connector_funcs cdv_hdmi_connector_funcs = {
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.dpms = drm_helper_connector_dpms,
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.save = cdv_hdmi_save,
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.restore = cdv_hdmi_restore,
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.detect = cdv_hdmi_detect,
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.fill_modes = drm_helper_probe_single_connector_modes,
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.set_property = cdv_hdmi_set_property,
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.destroy = cdv_hdmi_destroy,
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};
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void cdv_hdmi_init(struct drm_device *dev,
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struct psb_intel_mode_device *mode_dev, int reg)
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{
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2011-12-19 14:41:22 -07:00
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struct psb_intel_encoder *psb_intel_encoder;
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2013-07-22 09:05:25 -06:00
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struct gma_connector *gma_connector;
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2011-11-03 12:22:37 -06:00
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struct drm_connector *connector;
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struct drm_encoder *encoder;
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struct mid_intel_hdmi_priv *hdmi_priv;
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int ddc_bus;
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2011-12-19 14:41:22 -07:00
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psb_intel_encoder = kzalloc(sizeof(struct psb_intel_encoder),
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GFP_KERNEL);
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if (!psb_intel_encoder)
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2011-11-03 12:22:37 -06:00
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return;
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2013-07-22 09:05:25 -06:00
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gma_connector = kzalloc(sizeof(struct gma_connector),
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2011-12-19 14:41:22 -07:00
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GFP_KERNEL);
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2013-07-22 09:05:25 -06:00
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if (!gma_connector)
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2011-12-19 14:41:22 -07:00
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goto err_connector;
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hdmi_priv = kzalloc(sizeof(struct mid_intel_hdmi_priv), GFP_KERNEL);
|
|
|
|
|
|
|
|
if (!hdmi_priv)
|
|
|
|
goto err_priv;
|
|
|
|
|
2013-07-22 09:05:25 -06:00
|
|
|
connector = &gma_connector->base;
|
2013-03-31 05:38:44 -06:00
|
|
|
connector->polled = DRM_CONNECTOR_POLL_HPD;
|
2011-12-19 14:41:22 -07:00
|
|
|
encoder = &psb_intel_encoder->base;
|
|
|
|
drm_connector_init(dev, connector,
|
2011-11-03 12:22:37 -06:00
|
|
|
&cdv_hdmi_connector_funcs,
|
|
|
|
DRM_MODE_CONNECTOR_DVID);
|
|
|
|
|
2011-12-19 14:41:22 -07:00
|
|
|
drm_encoder_init(dev, encoder, &psb_intel_lvds_enc_funcs,
|
2011-11-03 12:22:37 -06:00
|
|
|
DRM_MODE_ENCODER_TMDS);
|
|
|
|
|
2013-07-22 09:05:25 -06:00
|
|
|
gma_connector_attach_encoder(gma_connector, psb_intel_encoder);
|
2011-12-19 14:41:22 -07:00
|
|
|
psb_intel_encoder->type = INTEL_OUTPUT_HDMI;
|
2011-11-03 12:22:37 -06:00
|
|
|
hdmi_priv->hdmi_reg = reg;
|
|
|
|
hdmi_priv->has_hdmi_sink = false;
|
2011-12-19 14:41:22 -07:00
|
|
|
psb_intel_encoder->dev_priv = hdmi_priv;
|
2011-11-03 12:22:37 -06:00
|
|
|
|
|
|
|
drm_encoder_helper_add(encoder, &cdv_hdmi_helper_funcs);
|
|
|
|
drm_connector_helper_add(connector,
|
|
|
|
&cdv_hdmi_connector_helper_funcs);
|
|
|
|
connector->display_info.subpixel_order = SubPixelHorizontalRGB;
|
|
|
|
connector->interlace_allowed = false;
|
|
|
|
connector->doublescan_allowed = false;
|
|
|
|
|
2012-10-11 19:38:23 -06:00
|
|
|
drm_object_attach_property(&connector->base,
|
2011-12-19 14:41:22 -07:00
|
|
|
dev->mode_config.scaling_mode_property,
|
|
|
|
DRM_MODE_SCALE_FULLSCREEN);
|
2011-11-03 12:22:37 -06:00
|
|
|
|
|
|
|
switch (reg) {
|
|
|
|
case SDVOB:
|
|
|
|
ddc_bus = GPIOE;
|
2012-08-08 07:53:48 -06:00
|
|
|
psb_intel_encoder->ddi_select = DDI0_SELECT;
|
2011-11-03 12:22:37 -06:00
|
|
|
break;
|
|
|
|
case SDVOC:
|
|
|
|
ddc_bus = GPIOD;
|
2012-08-08 07:53:48 -06:00
|
|
|
psb_intel_encoder->ddi_select = DDI1_SELECT;
|
2011-11-03 12:22:37 -06:00
|
|
|
break;
|
|
|
|
default:
|
|
|
|
DRM_ERROR("unknown reg 0x%x for HDMI\n", reg);
|
|
|
|
goto failed_ddc;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
2011-12-19 14:41:22 -07:00
|
|
|
psb_intel_encoder->i2c_bus = psb_intel_i2c_create(dev,
|
2011-11-03 12:22:37 -06:00
|
|
|
ddc_bus, (reg == SDVOB) ? "HDMIB" : "HDMIC");
|
|
|
|
|
2011-12-19 14:41:22 -07:00
|
|
|
if (!psb_intel_encoder->i2c_bus) {
|
2011-11-03 12:22:37 -06:00
|
|
|
dev_err(dev->dev, "No ddc adapter available!\n");
|
|
|
|
goto failed_ddc;
|
|
|
|
}
|
2011-12-19 14:41:22 -07:00
|
|
|
|
|
|
|
hdmi_priv->hdmi_i2c_adapter =
|
|
|
|
&(psb_intel_encoder->i2c_bus->adapter);
|
2011-11-03 12:22:37 -06:00
|
|
|
hdmi_priv->dev = dev;
|
|
|
|
drm_sysfs_connector_add(connector);
|
|
|
|
return;
|
|
|
|
|
|
|
|
failed_ddc:
|
2011-12-19 14:41:22 -07:00
|
|
|
drm_encoder_cleanup(encoder);
|
|
|
|
drm_connector_cleanup(connector);
|
|
|
|
err_priv:
|
2013-07-22 09:05:25 -06:00
|
|
|
kfree(gma_connector);
|
2011-12-19 14:41:22 -07:00
|
|
|
err_connector:
|
|
|
|
kfree(psb_intel_encoder);
|
2011-11-03 12:22:37 -06:00
|
|
|
}
|