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drm/i915: factor out ddi_get_encoder_port 

In the next patch we'll need to get at both the encoder's intel_digital_port
object - which maybe NULL for a CRT - and it's port, so factor out this
functionality.

No functional change.

Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
This commit is contained in:
Imre Deak 2015-04-17 19:31:21 +03:00 committed by Jani Nikula
parent 052f62f789
commit a1e6ad6675
1 changed files with 19 additions and 9 deletions
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28
drivers/gpu/drm/i915/intel_ddi.c
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@ -210,29 +210,39 @@ static const struct bxt_ddi_buf_trans bxt_ddi_translations_hdmi[] = {
{ 154, 0x9A, 1, 128, true }, /* 9: 1200 0 */
};
enum port intel_ddi_get_encoder_port(struct intel_encoder *intel_encoder)
static void ddi_get_encoder_port(struct intel_encoder *intel_encoder,
struct intel_digital_port **dig_port,
enum port *port)
{
struct drm_encoder *encoder = &intel_encoder->base;
int type = intel_encoder->type;
if (type == INTEL_OUTPUT_DP_MST) {
struct intel_digital_port *intel_dig_port = enc_to_mst(encoder)->primary;
return intel_dig_port->port;
*dig_port = enc_to_mst(encoder)->primary;
*port = (*dig_port)->port;
} else if (type == INTEL_OUTPUT_DISPLAYPORT || type == INTEL_OUTPUT_EDP ||
type == INTEL_OUTPUT_HDMI || type == INTEL_OUTPUT_UNKNOWN) {
struct intel_digital_port *intel_dig_port =
enc_to_dig_port(encoder);
return intel_dig_port->port;
*dig_port = enc_to_dig_port(encoder);
*port = (*dig_port)->port;
} else if (type == INTEL_OUTPUT_ANALOG) {
return PORT_E;
*dig_port = NULL;
*port = PORT_E;
} else {
DRM_ERROR("Invalid DDI encoder type %d\n", type);
BUG();
}
}
enum port intel_ddi_get_encoder_port(struct intel_encoder *intel_encoder)
{
struct intel_digital_port *dig_port;
enum port port;
ddi_get_encoder_port(intel_encoder, &dig_port, &port);
return port;
}
static bool
intel_dig_port_supports_hdmi(const struct intel_digital_port *intel_dig_port)
{