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drm/i915/cnl: Add HPD support for Port F. 

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@intel.com>
Cc: Manasi Navare <manasi.d.navare@intel.com>
Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180129232223.766-8-rodrigo.vivi@intel.com
This commit is contained in:
Rodrigo Vivi 2018-01-29 15:22:21 -08:00
parent 7533eb4f89
commit cf53902f48
5 changed files with 42 additions and 24 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/gpu/drm/i915/i915_drv.h
View File

@ -2958,8 +2958,10 @@ 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);

35
drivers/gpu/drm/i915/i915_irq.c
View File

@ -1574,10 +1574,11 @@ 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;
@ -1588,7 +1589,7 @@ 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;
@ -1976,8 +1977,9 @@ 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);
@ -1989,8 +1991,9 @@ 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);
}
@ -2191,7 +2194,7 @@ 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);
@ -2333,8 +2336,8 @@ 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);
}
@ -2344,8 +2347,8 @@ 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);
}
@ -2365,7 +2368,7 @@ 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);
@ -2542,7 +2545,7 @@ 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);

4
drivers/gpu/drm/i915/intel_dp.c
View File

@ -5981,8 +5981,10 @@ 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:

2
drivers/gpu/drm/i915/intel_hdmi.c
View File

@ -2091,7 +2091,7 @@ 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;

19
drivers/gpu/drm/i915/intel_hotplug.c
View File

@ -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 */
@ -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];