On Thu, 16 Feb 2017, Ander Conselvan De Oliveira <conselv...@gmail.com> wrote:
> On Thu, 2017-02-16 at 11:05 +0200, Imre Deak wrote:
>> On Fri, Feb 10, 2017 at 03:29:54PM +0200, Ander Conselvan de Oliveira wrote:
>> > The aux power domain only makes sense in the DP code. Storing it in
>> > struct intel_dp avoids some indirection.
>> > 
>> > v2: Rebase
>> > Signed-off-by: Ander Conselvan de Oliveira 
>> > <ander.conselvan.de.olive...@intel.com>
>> > ---
>> >  drivers/gpu/drm/i915/intel_display.c | 50 -----------------------------
>> >  drivers/gpu/drm/i915/intel_dp.c      | 61 
>> > ++++++++++++++----------------------
>> >  drivers/gpu/drm/i915/intel_drv.h     |  3 +-
>> >  3 files changed, 24 insertions(+), 90 deletions(-)
>> > 
>> > diff --git a/drivers/gpu/drm/i915/intel_display.c 
>> > b/drivers/gpu/drm/i915/intel_display.c
>> > index ab78df9..1e70776 100644
>> > --- a/drivers/gpu/drm/i915/intel_display.c
>> > +++ b/drivers/gpu/drm/i915/intel_display.c
>> > @@ -5589,26 +5589,6 @@ static enum intel_display_power_domain 
>> > port_to_power_domain(enum port port)
>> >    }
>> >  }
>> >  
>> > -static enum intel_display_power_domain port_to_aux_power_domain(enum port 
>> > port)
>> > -{
>> > -  switch (port) {
>> > -  case PORT_A:
>> > -          return POWER_DOMAIN_AUX_A;
>> > -  case PORT_B:
>> > -          return POWER_DOMAIN_AUX_B;
>> > -  case PORT_C:
>> > -          return POWER_DOMAIN_AUX_C;
>> > -  case PORT_D:
>> > -          return POWER_DOMAIN_AUX_D;
>> > -  case PORT_E:
>> > -          /* FIXME: Check VBT for actual wiring of PORT E */
>> > -          return POWER_DOMAIN_AUX_D;
>> > -  default:
>> > -          MISSING_CASE(port);
>> > -          return POWER_DOMAIN_AUX_A;
>> > -  }
>> > -}
>> > -
>> >  enum intel_display_power_domain
>> >  intel_display_port_power_domain(struct intel_encoder *intel_encoder)
>> >  {
>> > @@ -5636,36 +5616,6 @@ intel_display_port_power_domain(struct 
>> > intel_encoder *intel_encoder)
>> >    }
>> >  }
>> >  
>> > -enum intel_display_power_domain
>> > -intel_display_port_aux_power_domain(struct intel_encoder *intel_encoder)
>> > -{
>> > -  struct drm_i915_private *dev_priv = to_i915(intel_encoder->base.dev);
>> > -  struct intel_digital_port *intel_dig_port;
>> > -
>> > -  switch (intel_encoder->type) {
>> > -  case INTEL_OUTPUT_UNKNOWN:
>> > -  case INTEL_OUTPUT_HDMI:
>> > -          /*
>> > -           * Only DDI platforms should ever use these output types.
>> > -           * We can get here after the HDMI detect code has already set
>> > -           * the type of the shared encoder. Since we can't be sure
>> > -           * what's the status of the given connectors, play safe and
>> > -           * run the DP detection too.
>> > -           */
>> > -          WARN_ON_ONCE(!HAS_DDI(dev_priv));
>> > -  case INTEL_OUTPUT_DP:
>> > -  case INTEL_OUTPUT_EDP:
>> > -          intel_dig_port = enc_to_dig_port(&intel_encoder->base);
>> > -          return port_to_aux_power_domain(intel_dig_port->port);
>> > -  case INTEL_OUTPUT_DP_MST:
>> > -          intel_dig_port = enc_to_mst(&intel_encoder->base)->primary;
>> > -          return port_to_aux_power_domain(intel_dig_port->port);
>> 
>> I was wondering where the dp->aux_power_domain gets inited for the MST case,
>> but looks like this case could never happen even now. The patch looks ok:
>
> Looks like I forgot to Cc Jani, but he had the same concern: 
> https://lists.freed
> esktop.org/archives/intel-gfx/2017-February/119027.html

Yeah, sorry I failed to follow-up here. /o\

>
> The important part is that when the MST connector is initialized, it receives 
> a
> struct intel_dp as a parameter, and that struct has the aux power domain
> initialized. That is what ends up in the ->primary field which the function
> above uses.
>
>> Reviewed-by: Imre Deak <imre.d...@intel.com>
>
> Thanks,
> Ander
>
>> 
>> > -  default:
>> > -          MISSING_CASE(intel_encoder->type);
>> > -          return POWER_DOMAIN_AUX_A;
>> > -  }
>> > -}
>> > -
>> >  static u64 get_crtc_power_domains(struct drm_crtc *crtc,
>> >                              struct intel_crtc_state *crtc_state)
>> >  {
>> > diff --git a/drivers/gpu/drm/i915/intel_dp.c 
>> > b/drivers/gpu/drm/i915/intel_dp.c
>> > index fa77e96..e2e4766 100644
>> > --- a/drivers/gpu/drm/i915/intel_dp.c
>> > +++ b/drivers/gpu/drm/i915/intel_dp.c
>> > @@ -396,14 +396,12 @@ static void pps_lock(struct intel_dp *intel_dp)
>> >    struct intel_encoder *encoder = &intel_dig_port->base;
>> >    struct drm_device *dev = encoder->base.dev;
>> >    struct drm_i915_private *dev_priv = to_i915(dev);
>> > -  enum intel_display_power_domain power_domain;
>> >  
>> >    /*
>> >     * See vlv_power_sequencer_reset() why we need
>> >     * a power domain reference here.
>> >     */
>> > -  power_domain = intel_display_port_aux_power_domain(encoder);
>> > -  intel_display_power_get(dev_priv, power_domain);
>> > +  intel_display_power_get(dev_priv, intel_dp->aux_power_domain);
>> >  
>> >    mutex_lock(&dev_priv->pps_mutex);
>> >  }
>> > @@ -414,12 +412,10 @@ static void pps_unlock(struct intel_dp *intel_dp)
>> >    struct intel_encoder *encoder = &intel_dig_port->base;
>> >    struct drm_device *dev = encoder->base.dev;
>> >    struct drm_i915_private *dev_priv = to_i915(dev);
>> > -  enum intel_display_power_domain power_domain;
>> >  
>> >    mutex_unlock(&dev_priv->pps_mutex);
>> >  
>> > -  power_domain = intel_display_port_aux_power_domain(encoder);
>> > -  intel_display_power_put(dev_priv, power_domain);
>> > +  intel_display_power_put(dev_priv, intel_dp->aux_power_domain);
>> >  }
>> >  
>> >  static void
>> > @@ -2005,9 +2001,7 @@ static bool edp_panel_vdd_on(struct intel_dp 
>> > *intel_dp)
>> >  {
>> >    struct drm_device *dev = intel_dp_to_dev(intel_dp);
>> >    struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp);
>> > -  struct intel_encoder *intel_encoder = &intel_dig_port->base;
>> >    struct drm_i915_private *dev_priv = to_i915(dev);
>> > -  enum intel_display_power_domain power_domain;
>> >    u32 pp;
>> >    i915_reg_t pp_stat_reg, pp_ctrl_reg;
>> >    bool need_to_disable = !intel_dp->want_panel_vdd;
>> > @@ -2023,8 +2017,7 @@ static bool edp_panel_vdd_on(struct intel_dp 
>> > *intel_dp)
>> >    if (edp_have_panel_vdd(intel_dp))
>> >            return need_to_disable;
>> >  
>> > -  power_domain = intel_display_port_aux_power_domain(intel_encoder);
>> > -  intel_display_power_get(dev_priv, power_domain);
>> > +  intel_display_power_get(dev_priv, intel_dp->aux_power_domain);
>> >  
>> >    DRM_DEBUG_KMS("Turning eDP port %c VDD on\n",
>> >                  port_name(intel_dig_port->port));
>> > @@ -2082,8 +2075,6 @@ static void edp_panel_vdd_off_sync(struct intel_dp 
>> > *intel_dp)
>> >    struct drm_i915_private *dev_priv = to_i915(dev);
>> >    struct intel_digital_port *intel_dig_port =
>> >            dp_to_dig_port(intel_dp);
>> > -  struct intel_encoder *intel_encoder = &intel_dig_port->base;
>> > -  enum intel_display_power_domain power_domain;
>> >    u32 pp;
>> >    i915_reg_t pp_stat_reg, pp_ctrl_reg;
>> >  
>> > @@ -2113,8 +2104,7 @@ static void edp_panel_vdd_off_sync(struct intel_dp 
>> > *intel_dp)
>> >    if ((pp & PANEL_POWER_ON) == 0)
>> >            intel_dp->panel_power_off_time = ktime_get_boottime();
>> >  
>> > -  power_domain = intel_display_port_aux_power_domain(intel_encoder);
>> > -  intel_display_power_put(dev_priv, power_domain);
>> > +  intel_display_power_put(dev_priv, intel_dp->aux_power_domain);
>> >  }
>> >  
>> >  static void edp_panel_vdd_work(struct work_struct *__work)
>> > @@ -2227,11 +2217,8 @@ void intel_edp_panel_on(struct intel_dp *intel_dp)
>> >  
>> >  static void edp_panel_off(struct intel_dp *intel_dp)
>> >  {
>> > -  struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp);
>> > -  struct intel_encoder *intel_encoder = &intel_dig_port->base;
>> >    struct drm_device *dev = intel_dp_to_dev(intel_dp);
>> >    struct drm_i915_private *dev_priv = to_i915(dev);
>> > -  enum intel_display_power_domain power_domain;
>> >    u32 pp;
>> >    i915_reg_t pp_ctrl_reg;
>> >  
>> > @@ -2263,8 +2250,7 @@ static void edp_panel_off(struct intel_dp *intel_dp)
>> >    wait_panel_off(intel_dp);
>> >  
>> >    /* We got a reference when we enabled the VDD. */
>> > -  power_domain = intel_display_port_aux_power_domain(intel_encoder);
>> > -  intel_display_power_put(dev_priv, power_domain);
>> > +  intel_display_power_put(dev_priv, intel_dp->aux_power_domain);
>> >  }
>> >  
>> >  void intel_edp_panel_off(struct intel_dp *intel_dp)
>> > @@ -4587,11 +4573,9 @@ intel_dp_long_pulse(struct intel_connector 
>> > *intel_connector)
>> >    struct intel_encoder *intel_encoder = &intel_dig_port->base;
>> >    struct drm_device *dev = connector->dev;
>> >    enum drm_connector_status status;
>> > -  enum intel_display_power_domain power_domain;
>> >    u8 sink_irq_vector = 0;
>> >  
>> > -  power_domain = intel_display_port_aux_power_domain(intel_encoder);
>> > -  intel_display_power_get(to_i915(dev), power_domain);
>> > +  intel_display_power_get(to_i915(dev), intel_dp->aux_power_domain);
>> >  
>> >    /* Can't disconnect eDP, but you can close the lid... */
>> >    if (is_edp(intel_dp))
>> > @@ -4688,7 +4672,7 @@ intel_dp_long_pulse(struct intel_connector 
>> > *intel_connector)
>> >    if (status != connector_status_connected && !intel_dp->is_mst)
>> >            intel_dp_unset_edid(intel_dp);
>> >  
>> > -  intel_display_power_put(to_i915(dev), power_domain);
>> > +  intel_display_power_put(to_i915(dev), intel_dp->aux_power_domain);
>> >    return status;
>> >  }
>> >  
>> > @@ -4716,7 +4700,6 @@ intel_dp_force(struct drm_connector *connector)
>> >    struct intel_dp *intel_dp = intel_attached_dp(connector);
>> >    struct intel_encoder *intel_encoder = &dp_to_dig_port(intel_dp)->base;
>> >    struct drm_i915_private *dev_priv = to_i915(intel_encoder->base.dev);
>> > -  enum intel_display_power_domain power_domain;
>> >  
>> >    DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
>> >                  connector->base.id, connector->name);
>> > @@ -4725,12 +4708,11 @@ intel_dp_force(struct drm_connector *connector)
>> >    if (connector->status != connector_status_connected)
>> >            return;
>> >  
>> > -  power_domain = intel_display_port_aux_power_domain(intel_encoder);
>> > -  intel_display_power_get(dev_priv, power_domain);
>> > +  intel_display_power_get(dev_priv, intel_dp->aux_power_domain);
>> >  
>> >    intel_dp_set_edid(intel_dp);
>> >  
>> > -  intel_display_power_put(dev_priv, power_domain);
>> > +  intel_display_power_put(dev_priv, intel_dp->aux_power_domain);
>> >  
>> >    if (intel_encoder->type != INTEL_OUTPUT_EDP)
>> >            intel_encoder->type = INTEL_OUTPUT_DP;
>> > @@ -4965,7 +4947,6 @@ static void intel_edp_panel_vdd_sanitize(struct 
>> > intel_dp *intel_dp)
>> >    struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp);
>> >    struct drm_device *dev = intel_dig_port->base.base.dev;
>> >    struct drm_i915_private *dev_priv = to_i915(dev);
>> > -  enum intel_display_power_domain power_domain;
>> >  
>> >    lockdep_assert_held(&dev_priv->pps_mutex);
>> >  
>> > @@ -4979,8 +4960,7 @@ static void intel_edp_panel_vdd_sanitize(struct 
>> > intel_dp *intel_dp)
>> >     * indefinitely.
>> >     */
>> >    DRM_DEBUG_KMS("VDD left on by BIOS, adjusting state tracking\n");
>> > -  power_domain = 
>> > intel_display_port_aux_power_domain(&intel_dig_port->base);
>> > -  intel_display_power_get(dev_priv, power_domain);
>> > +  intel_display_power_get(dev_priv, intel_dp->aux_power_domain);
>> >  
>> >    edp_panel_vdd_schedule_off(intel_dp);
>> >  }
>> > @@ -5052,10 +5032,8 @@ enum irqreturn
>> >  intel_dp_hpd_pulse(struct intel_digital_port *intel_dig_port, bool 
>> > long_hpd)
>> >  {
>> >    struct intel_dp *intel_dp = &intel_dig_port->dp;
>> > -  struct intel_encoder *intel_encoder = &intel_dig_port->base;
>> >    struct drm_device *dev = intel_dig_port->base.base.dev;
>> >    struct drm_i915_private *dev_priv = to_i915(dev);
>> > -  enum intel_display_power_domain power_domain;
>> >    enum irqreturn ret = IRQ_NONE;
>> >  
>> >    if (intel_dig_port->base.type != INTEL_OUTPUT_EDP &&
>> > @@ -5083,8 +5061,7 @@ intel_dp_hpd_pulse(struct intel_digital_port 
>> > *intel_dig_port, bool long_hpd)
>> >            return IRQ_NONE;
>> >    }
>> >  
>> > -  power_domain = intel_display_port_aux_power_domain(intel_encoder);
>> > -  intel_display_power_get(dev_priv, power_domain);
>> > +  intel_display_power_get(dev_priv, intel_dp->aux_power_domain);
>> >  
>> >    if (intel_dp->is_mst) {
>> >            if (intel_dp_check_mst_status(intel_dp) == -EINVAL) {
>> > @@ -5112,7 +5089,7 @@ intel_dp_hpd_pulse(struct intel_digital_port 
>> > *intel_dig_port, bool long_hpd)
>> >    ret = IRQ_HANDLED;
>> >  
>> >  put_power:
>> > -  intel_display_power_put(dev_priv, power_domain);
>> > +  intel_display_power_put(dev_priv, intel_dp->aux_power_domain);
>> >  
>> >    return ret;
>> >  }
>> > @@ -5903,27 +5880,35 @@ static bool intel_edp_init_connector(struct 
>> > intel_dp *intel_dp,
>> >    return false;
>> >  }
>> >  
>> > +/* Set up the hotplug pin and aux power domain. */
>> >  static void
>> >  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;
>> >  
>> > -  /* Set up the hotplug pin. */
>> >    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;
>> >    default:
>> >            MISSING_CASE(intel_dig_port->port);
>> > @@ -6003,6 +5988,8 @@ intel_dp_init_connector(struct intel_digital_port 
>> > *intel_dig_port,
>> >    connector->interlace_allowed = true;
>> >    connector->doublescan_allowed = 0;
>> >  
>> > +  intel_dp_init_connector_port_info(intel_dig_port);
>> > +
>> >    intel_dp_aux_init(intel_dp);
>> >  
>> >    INIT_DELAYED_WORK(&intel_dp->panel_vdd_work,
>> > @@ -6015,8 +6002,6 @@ intel_dp_init_connector(struct intel_digital_port 
>> > *intel_dig_port,
>> >    else
>> >            intel_connector->get_hw_state = intel_connector_get_hw_state;
>> >  
>> > -  intel_dp_init_connector_port_info(intel_dig_port);
>> > -
>> >    /* init MST on ports that can support it */
>> >    if (HAS_DP_MST(dev_priv) && !is_edp(intel_dp) &&
>> >        (port == PORT_B || port == PORT_C || port == PORT_D))
>> > diff --git a/drivers/gpu/drm/i915/intel_drv.h 
>> > b/drivers/gpu/drm/i915/intel_drv.h
>> > index 6e37fba..3ddeaa6 100644
>> > --- a/drivers/gpu/drm/i915/intel_drv.h
>> > +++ b/drivers/gpu/drm/i915/intel_drv.h
>> > @@ -950,6 +950,7 @@ struct intel_dp {
>> >    /* sink or branch descriptor */
>> >    struct intel_dp_desc desc;
>> >    struct drm_dp_aux aux;
>> > +  enum intel_display_power_domain aux_power_domain;
>> >    uint8_t train_set[4];
>> >    int panel_power_up_delay;
>> >    int panel_power_down_delay;
>> > @@ -1421,8 +1422,6 @@ void hsw_enable_ips(struct intel_crtc *crtc);
>> >  void hsw_disable_ips(struct intel_crtc *crtc);
>> >  enum intel_display_power_domain
>> >  intel_display_port_power_domain(struct intel_encoder *intel_encoder);
>> > -enum intel_display_power_domain
>> > -intel_display_port_aux_power_domain(struct intel_encoder *intel_encoder);
>> >  void intel_mode_from_pipe_config(struct drm_display_mode *mode,
>> >                             struct intel_crtc_state *pipe_config);
>> >  
>> > -- 
>> > 2.9.3
>> > 
>> > _______________________________________________
>> > Intel-gfx mailing list
>> > Intel-gfx@lists.freedesktop.org
>> > https://lists.freedesktop.org/mailman/listinfo/intel-gfx
>> 
>> _______________________________________________
>> Intel-gfx mailing list
>> Intel-gfx@lists.freedesktop.org
>> https://lists.freedesktop.org/mailman/listinfo/intel-gfx

-- 
Jani Nikula, Intel Open Source Technology Center
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