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drm/i915/sdvo: implement get_hw_state

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SDVO is the first real special case - we support multiple outputs on
the same encoder and the encoder dpms state isn't the same as when
just disabling the outputs when the encoder is cloned.

Hence we need a real connector get_hw_state function which inquires
the sdvo encoder about its active outputs.

Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Daniel Vetter 2012-07-02 14:54:00 +02:00
parent e403fc941a
commit 4ac41f47f8
1 changed files with 46 additions and 0 deletions
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46
drivers/gpu/drm/i915/intel_sdvo.c
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@ -628,6 +628,14 @@ static bool intel_sdvo_set_active_outputs(struct intel_sdvo *intel_sdvo,
&outputs, sizeof(outputs));
}
static bool intel_sdvo_get_active_outputs(struct intel_sdvo *intel_sdvo,
u16 *outputs)
{
return intel_sdvo_get_value(intel_sdvo,
SDVO_CMD_GET_ACTIVE_OUTPUTS,
outputs, sizeof(*outputs));
}
static bool intel_sdvo_set_encoder_power_state(struct intel_sdvo *intel_sdvo,
int mode)
{
@ -1142,6 +1150,42 @@ static void intel_sdvo_mode_set(struct drm_encoder *encoder,
intel_sdvo_write_sdvox(intel_sdvo, sdvox);
}
static bool intel_sdvo_connector_get_hw_state(struct intel_connector *connector)
{
struct intel_sdvo_connector *intel_sdvo_connector =
to_intel_sdvo_connector(&connector->base);
struct intel_sdvo *intel_sdvo = intel_attached_sdvo(&connector->base);
u16 active_outputs;
intel_sdvo_get_active_outputs(intel_sdvo, &active_outputs);
if (active_outputs & intel_sdvo_connector->output_flag)
return true;
else
return false;
}
static bool intel_sdvo_get_hw_state(struct intel_encoder *encoder,
enum pipe *pipe)
{
struct drm_device *dev = encoder->base.dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_sdvo *intel_sdvo = to_intel_sdvo(&encoder->base);
u32 tmp;
tmp = I915_READ(intel_sdvo->sdvo_reg);
if (!(tmp & SDVO_ENABLE))
return false;
if (HAS_PCH_CPT(dev))
*pipe = PORT_TO_PIPE_CPT(tmp);
else
*pipe = PORT_TO_PIPE(tmp);
return true;
}
static void intel_disable_sdvo(struct intel_encoder *encoder)
{
struct drm_i915_private *dev_priv = encoder->base.dev->dev_private;
@ -2066,6 +2110,7 @@ intel_sdvo_connector_init(struct intel_sdvo_connector *connector,
connector->base.base.interlace_allowed = 1;
connector->base.base.doublescan_allowed = 0;
connector->base.base.display_info.subpixel_order = SubPixelHorizontalRGB;
connector->base.get_hw_state = intel_sdvo_connector_get_hw_state;
intel_connector_attach_encoder(&connector->base, &encoder->base);
drm_sysfs_connector_add(&connector->base.base);
@ -2619,6 +2664,7 @@ bool intel_sdvo_init(struct drm_device *dev, uint32_t sdvo_reg, bool is_sdvob)
intel_encoder->disable = intel_disable_sdvo;
intel_encoder->enable = intel_enable_sdvo;
intel_encoder->get_hw_state = intel_sdvo_get_hw_state;
/* In default case sdvo lvds is false */
if (!intel_sdvo_get_capabilities(intel_sdvo, &intel_sdvo->caps))