On Wed, 2017-08-02 at 12:26 -0700, Rodrigo Vivi wrote:
> The idea is to have an unique place to decide the pin-port
> per platform.
>
> So let's create this function now without any functional
> change.
This seems to change the behavior when port A is not eDP.
> Just adding together code from hdmi and dp together.
>
> v2: Add missing pin for port A.
>
> Cc: Ville Syrjälä <ville.syrj...@linux.intel.com>
> Signed-off-by: Rodrigo Vivi <rodrigo.v...@intel.com>
> ---
> drivers/gpu/drm/i915/i915_drv.h | 1 +
> drivers/gpu/drm/i915/intel_dp.c | 8 ++------
> drivers/gpu/drm/i915/intel_hdmi.c | 19 +------------------
> drivers/gpu/drm/i915/intel_hotplug.c | 26 ++++++++++++++++++++++++++
> 4 files changed, 30 insertions(+), 24 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
> index 5c2c7a677e96..c038717ad739 100644
> --- a/drivers/gpu/drm/i915/i915_drv.h
> +++ b/drivers/gpu/drm/i915/i915_drv.h
> @@ -3148,6 +3148,7 @@ void intel_hpd_init(struct drm_i915_private *dev_priv);
> void intel_hpd_init_work(struct drm_i915_private *dev_priv);
> void intel_hpd_cancel_work(struct drm_i915_private *dev_priv);
> enum port intel_hpd_port(enum hpd_pin pin);
> +enum hpd_pin intel_hpd_pin(enum port port);
> bool intel_hpd_disable(struct drm_i915_private *dev_priv, enum hpd_pin pin);
> void intel_hpd_enable(struct drm_i915_private *dev_priv, enum hpd_pin pin);
>
> diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
> index d4e6128f3b3a..126783752c6d 100644
> --- a/drivers/gpu/drm/i915/intel_dp.c
> +++ b/drivers/gpu/drm/i915/intel_dp.c
> @@ -5906,26 +5906,22 @@ intel_dp_init_connector_port_info(struct
> intel_digital_port *intel_dig_port)
> struct intel_encoder *encoder = &intel_dig_port->base;
> struct intel_dp *intel_dp = &intel_dig_port->dp;
>
> + encoder->hpd_pin = intel_hpd_pin(intel_dig_port->port);
> +
> switch (intel_dig_port->port) {
> case PORT_A:
> - encoder->hpd_pin = HPD_PORT_A;
> intel_dp->aux_power_domain = POWER_DOMAIN_AUX_A;
> break;
> case PORT_B:
> - encoder->hpd_pin = HPD_PORT_B;
> intel_dp->aux_power_domain = POWER_DOMAIN_AUX_B;
> break;
> case PORT_C:
> - encoder->hpd_pin = HPD_PORT_C;
> intel_dp->aux_power_domain = POWER_DOMAIN_AUX_C;
> break;
> case PORT_D:
> - encoder->hpd_pin = HPD_PORT_D;
> intel_dp->aux_power_domain = POWER_DOMAIN_AUX_D;
> break;
> case PORT_E:
> - encoder->hpd_pin = HPD_PORT_E;
> -
> /* FIXME: Check VBT for actual wiring of PORT E */
> intel_dp->aux_power_domain = POWER_DOMAIN_AUX_D;
> break;
> diff --git a/drivers/gpu/drm/i915/intel_hdmi.c
> b/drivers/gpu/drm/i915/intel_hdmi.c
> index 5609976539bf..dcd14c71a989 100644
> --- a/drivers/gpu/drm/i915/intel_hdmi.c
> +++ b/drivers/gpu/drm/i915/intel_hdmi.c
> @@ -1921,24 +1921,7 @@ void intel_hdmi_init_connector(struct
> intel_digital_port *intel_dig_port,
> connector->ycbcr_420_allowed = true;
>
> intel_hdmi->ddc_bus = intel_hdmi_ddc_pin(dev_priv, port);
> -
> - switch (port) {
> - case PORT_B:
> - intel_encoder->hpd_pin = HPD_PORT_B;
> - break;
> - case PORT_C:
> - intel_encoder->hpd_pin = HPD_PORT_C;
> - break;
> - case PORT_D:
> - intel_encoder->hpd_pin = HPD_PORT_D;
> - break;
> - case PORT_E:
> - intel_encoder->hpd_pin = HPD_PORT_E;
> - break;
> - default:
> - MISSING_CASE(port);
> - return;
> - }
> + intel_encoder->hpd_pin = intel_hpd_pin(port);
Instead of returning early for port A, this will go ahead and attach the
HDMI encoder to the connector. However, I don't know likely we'll have
a vbt that says port A supports both DP and HDMI but not eDP.
>
> if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
> intel_hdmi->write_infoframe = vlv_write_infoframe;
> diff --git a/drivers/gpu/drm/i915/intel_hotplug.c
> b/drivers/gpu/drm/i915/intel_hotplug.c
> index 5982c47586e7..7b1cf30a3e9b 100644
> --- a/drivers/gpu/drm/i915/intel_hotplug.c
> +++ b/drivers/gpu/drm/i915/intel_hotplug.c
> @@ -101,6 +101,32 @@ enum port intel_hpd_port(enum hpd_pin pin)
> }
> }
>
> +/**
> + * intel_hpd_pin - return pin hard associated with certain port.
> + * @port: the hpd port to get associated pin
> + *
> + * Return pin that is associatade with @port and HDP_NONE if no pin is
> + * hard associated with that @port.
> + */
> +enum hpd_pin intel_hpd_pin(enum port port)
> +{
> + switch (port) {
> + case PORT_A:
> + return HPD_PORT_A;
> + case PORT_B:
> + return HPD_PORT_B;
> + case PORT_C:
> + return HPD_PORT_C;
> + case PORT_D:
> + return HPD_PORT_D;
> + case PORT_E:
> + return HPD_PORT_E;
> + default:
> + MISSING_CASE(port);
> + return HPD_NONE;
> + }
> +}
> +
> #define HPD_STORM_DETECT_PERIOD 1000
> #define HPD_STORM_REENABLE_DELAY (2 * 60 * 1000)
>
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