[Intel-gfx] [PATCH 07/10] drm/i915/cnl: Add HPD support for Port F.
Ville Syrjälä
ville.syrjala at linux.intel.com
Mon Jan 22 16:51:08 UTC 2018
On Fri, Jan 19, 2018 at 04:05:21PM -0800, Rodrigo Vivi wrote:
> On CNP boards that are using DDI F,
> bit 25 (SDE_PORTE_HOTPLUG_SPT) is representing
> the Digital Port F hotplug line when the Digital
> Port F hotplug detect input is enabled.
>
> v2: Reuse all existent structure instead of adding a
> new HPD_PORT_F pointing to pin of port E.
> v3: Use IS_CNL_WITH_PORT_F so we can start upstreaming
> this right now. If that SKU ever get a proper name
> we come back and update it.
> v4: Rebase on top of digital connected port using encoder
> instead of port.
> v5: Moved IS_CNL_WITH_PORT_F definition to the PCI IDs patch.
>
> Cc: Lucas De Marchi <lucas.demarchi at intel.com>
> Cc: Manasi Navare <manasi.d.navare at intel.com>
> Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan at intel.com>
> Cc: Ville Syrjälä <ville.syrjala at linux.intel.com>
> Signed-off-by: Rodrigo Vivi <rodrigo.vivi at intel.com>
> ---
> drivers/gpu/drm/i915/i915_drv.h | 6 ++++--
> drivers/gpu/drm/i915/i915_irq.c | 35 +++++++++++++++++++----------------
> drivers/gpu/drm/i915/intel_dp.c | 4 +++-
> drivers/gpu/drm/i915/intel_hdmi.c | 2 +-
> drivers/gpu/drm/i915/intel_hotplug.c | 19 +++++++++++++++----
> 5 files changed, 42 insertions(+), 24 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
> index 7206c7c5f81c..0b5f8d887bfd 100644
> --- a/drivers/gpu/drm/i915/i915_drv.h
> +++ b/drivers/gpu/drm/i915/i915_drv.h
> @@ -2957,8 +2957,10 @@ void intel_hpd_irq_handler(struct drm_i915_private *dev_priv,
> 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_pin_to_port(enum hpd_pin pin);
> -enum hpd_pin intel_hpd_pin(enum port port);
> +enum port intel_hpd_pin_to_port(struct drm_i915_private *dev_priv,
> + enum hpd_pin pin);
> +enum hpd_pin intel_hpd_pin_default(struct drm_i915_private *dev_priv,
> + 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/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
> index 0af970d4b3cf..78af4594eb38 100644
> --- a/drivers/gpu/drm/i915/i915_irq.c
> +++ b/drivers/gpu/drm/i915/i915_irq.c
> @@ -1568,10 +1568,11 @@ static bool i9xx_port_hotplug_long_detect(enum port port, u32 val)
> *
> * Note that the caller is expected to zero out the masks initially.
> */
> -static void intel_get_hpd_pins(u32 *pin_mask, u32 *long_mask,
> - u32 hotplug_trigger, u32 dig_hotplug_reg,
> - const u32 hpd[HPD_NUM_PINS],
> - bool long_pulse_detect(enum port port, u32 val))
> +static void intel_get_hpd_pins(struct drm_i915_private *dev_priv,
> + u32 *pin_mask, u32 *long_mask,
> + u32 hotplug_trigger, u32 dig_hotplug_reg,
> + const u32 hpd[HPD_NUM_PINS],
> + bool long_pulse_detect(enum port port, u32 val))
> {
> enum port port;
> int i;
> @@ -1582,7 +1583,7 @@ static void intel_get_hpd_pins(u32 *pin_mask, u32 *long_mask,
>
> *pin_mask |= BIT(i);
>
> - port = intel_hpd_pin_to_port(i);
> + port = intel_hpd_pin_to_port(dev_priv, i);
> if (port == PORT_NONE)
> continue;
>
> @@ -1970,8 +1971,9 @@ static void i9xx_hpd_irq_handler(struct drm_i915_private *dev_priv,
> u32 hotplug_trigger = hotplug_status & HOTPLUG_INT_STATUS_G4X;
>
> if (hotplug_trigger) {
> - intel_get_hpd_pins(&pin_mask, &long_mask, hotplug_trigger,
> - hotplug_trigger, hpd_status_g4x,
> + intel_get_hpd_pins(dev_priv, &pin_mask, &long_mask,
> + hotplug_trigger, hotplug_trigger,
> + hpd_status_g4x,
> i9xx_port_hotplug_long_detect);
>
> intel_hpd_irq_handler(dev_priv, pin_mask, long_mask);
> @@ -1983,8 +1985,9 @@ static void i9xx_hpd_irq_handler(struct drm_i915_private *dev_priv,
> u32 hotplug_trigger = hotplug_status & HOTPLUG_INT_STATUS_I915;
>
> if (hotplug_trigger) {
> - intel_get_hpd_pins(&pin_mask, &long_mask, hotplug_trigger,
> - hotplug_trigger, hpd_status_i915,
> + intel_get_hpd_pins(dev_priv, &pin_mask, &long_mask,
> + hotplug_trigger, hotplug_trigger,
> + hpd_status_i915,
> i9xx_port_hotplug_long_detect);
> intel_hpd_irq_handler(dev_priv, pin_mask, long_mask);
> }
> @@ -2185,7 +2188,7 @@ static void ibx_hpd_irq_handler(struct drm_i915_private *dev_priv,
> if (!hotplug_trigger)
> return;
>
> - intel_get_hpd_pins(&pin_mask, &long_mask, hotplug_trigger,
> + intel_get_hpd_pins(dev_priv, &pin_mask, &long_mask, hotplug_trigger,
> dig_hotplug_reg, hpd,
> pch_port_hotplug_long_detect);
>
> @@ -2327,8 +2330,8 @@ static void spt_irq_handler(struct drm_i915_private *dev_priv, u32 pch_iir)
> dig_hotplug_reg = I915_READ(PCH_PORT_HOTPLUG);
> I915_WRITE(PCH_PORT_HOTPLUG, dig_hotplug_reg);
>
> - intel_get_hpd_pins(&pin_mask, &long_mask, hotplug_trigger,
> - dig_hotplug_reg, hpd_spt,
> + intel_get_hpd_pins(dev_priv, &pin_mask, &long_mask,
> + hotplug_trigger, dig_hotplug_reg, hpd_spt,
> spt_port_hotplug_long_detect);
> }
>
> @@ -2338,8 +2341,8 @@ static void spt_irq_handler(struct drm_i915_private *dev_priv, u32 pch_iir)
> dig_hotplug_reg = I915_READ(PCH_PORT_HOTPLUG2);
> I915_WRITE(PCH_PORT_HOTPLUG2, dig_hotplug_reg);
>
> - intel_get_hpd_pins(&pin_mask, &long_mask, hotplug2_trigger,
> - dig_hotplug_reg, hpd_spt,
> + intel_get_hpd_pins(dev_priv, &pin_mask, &long_mask,
> + hotplug2_trigger, dig_hotplug_reg, hpd_spt,
> spt_port_hotplug2_long_detect);
> }
>
> @@ -2359,7 +2362,7 @@ static void ilk_hpd_irq_handler(struct drm_i915_private *dev_priv,
> dig_hotplug_reg = I915_READ(DIGITAL_PORT_HOTPLUG_CNTRL);
> I915_WRITE(DIGITAL_PORT_HOTPLUG_CNTRL, dig_hotplug_reg);
>
> - intel_get_hpd_pins(&pin_mask, &long_mask, hotplug_trigger,
> + intel_get_hpd_pins(dev_priv, &pin_mask, &long_mask, hotplug_trigger,
> dig_hotplug_reg, hpd,
> ilk_port_hotplug_long_detect);
>
> @@ -2536,7 +2539,7 @@ static void bxt_hpd_irq_handler(struct drm_i915_private *dev_priv,
> dig_hotplug_reg = I915_READ(PCH_PORT_HOTPLUG);
> I915_WRITE(PCH_PORT_HOTPLUG, dig_hotplug_reg);
>
> - intel_get_hpd_pins(&pin_mask, &long_mask, hotplug_trigger,
> + intel_get_hpd_pins(dev_priv, &pin_mask, &long_mask, hotplug_trigger,
> dig_hotplug_reg, hpd,
> bxt_port_hotplug_long_detect);
>
> diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
> index 4ff6fcf542e9..4b963732454d 100644
> --- a/drivers/gpu/drm/i915/intel_dp.c
> +++ b/drivers/gpu/drm/i915/intel_dp.c
> @@ -6205,8 +6205,10 @@ 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;
> + struct intel_encoder *intel_encoder = &intel_dig_port->base;
> + struct drm_i915_private *dev_priv = to_i915(intel_encoder->base.dev);
>
> - encoder->hpd_pin = intel_hpd_pin(encoder->port);
> + encoder->hpd_pin = intel_hpd_pin_default(dev_priv, encoder->port);
>
> switch (encoder->port) {
> case PORT_A:
> diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
> index 0d924ba42075..f9a1a32fd272 100644
> --- a/drivers/gpu/drm/i915/intel_hdmi.c
> +++ b/drivers/gpu/drm/i915/intel_hdmi.c
> @@ -2334,7 +2334,7 @@ void intel_hdmi_init_connector(struct intel_digital_port *intel_dig_port,
>
> if (WARN_ON(port == PORT_A))
> return;
> - intel_encoder->hpd_pin = intel_hpd_pin(port);
> + intel_encoder->hpd_pin = intel_hpd_pin_default(dev_priv, port);
>
> if (HAS_DDI(dev_priv))
> intel_connector->get_hw_state = intel_ddi_connector_get_hw_state;
> diff --git a/drivers/gpu/drm/i915/intel_hotplug.c b/drivers/gpu/drm/i915/intel_hotplug.c
> index 875d5d218d5c..fe28c1ea84a5 100644
> --- a/drivers/gpu/drm/i915/intel_hotplug.c
> +++ b/drivers/gpu/drm/i915/intel_hotplug.c
> @@ -78,12 +78,14 @@
>
> /**
> * intel_hpd_port - return port hard associated with certain pin.
> + * @dev_priv: private driver data pointer
> * @pin: the hpd pin to get associated port
> *
> * Return port that is associatade with @pin and PORT_NONE if no port is
> * hard associated with that @pin.
> */
> -enum port intel_hpd_pin_to_port(enum hpd_pin pin)
> +enum port intel_hpd_pin_to_port(struct drm_i915_private *dev_priv,
> + enum hpd_pin pin)
> {
> switch (pin) {
> case HPD_PORT_A:
> @@ -95,6 +97,8 @@ enum port intel_hpd_pin_to_port(enum hpd_pin pin)
> case HPD_PORT_D:
> return PORT_D;
> case HPD_PORT_E:
> + if (IS_CNL_WITH_PORT_F(dev_priv))
> + return PORT_F;
> return PORT_E;
> default:
> return PORT_NONE; /* no port for this pin */
I'm thinking we could rewrite this function as
for_each_intel_encoder(...) {
if (encoder->hpd_pin == pin)
return encoder->port;
}
That way we have no hardcoded mapping anywhere but
intel_hpd_pin_default().
But this could be a followup patch.
Everything in this patch looks reasonable to me so
Reviewed-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
> @@ -102,13 +106,17 @@ enum port intel_hpd_pin_to_port(enum hpd_pin pin)
> }
>
> /**
> - * intel_hpd_pin - return pin hard associated with certain port.
> + * intel_hpd_pin_default - return default pin associated with certain port.
> + * @dev_priv: private driver data pointer
> * @port: the hpd port to get associated pin
> *
> + * It is only valid and used by digital port encoder.
> + *
> * 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)
> +enum hpd_pin intel_hpd_pin_default(struct drm_i915_private *dev_priv,
> + enum port port)
> {
> switch (port) {
> case PORT_A:
> @@ -121,6 +129,9 @@ enum hpd_pin intel_hpd_pin(enum port port)
> return HPD_PORT_D;
> case PORT_E:
> return HPD_PORT_E;
> + case PORT_F:
> + if (IS_CNL_WITH_PORT_F(dev_priv))
> + return HPD_PORT_E;
> default:
> MISSING_CASE(port);
> return HPD_NONE;
> @@ -417,7 +428,7 @@ void intel_hpd_irq_handler(struct drm_i915_private *dev_priv,
> if (!(BIT(i) & pin_mask))
> continue;
>
> - port = intel_hpd_pin_to_port(i);
> + port = intel_hpd_pin_to_port(dev_priv, i);
> is_dig_port = port != PORT_NONE &&
> dev_priv->hotplug.irq_port[port];
>
> --
> 2.13.6
--
Ville Syrjälä
Intel OTC
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