[Intel-gfx] [PATCH 5/6] drm/i915/skl: enable DDIE hotplug
Xiong Zhang
xiong.y.zhang at intel.com
Thu Aug 6 00:51:40 PDT 2015
Signed-off-by: Xiong Zhang <xiong.y.zhang at intel.com>
---
drivers/gpu/drm/i915/i915_drv.h | 1 +
drivers/gpu/drm/i915/i915_irq.c | 49 +++++++++++++++++++++++++++++++++---
drivers/gpu/drm/i915/i915_reg.h | 12 +++++++++
drivers/gpu/drm/i915/intel_display.c | 2 ++
drivers/gpu/drm/i915/intel_dp.c | 3 +++
drivers/gpu/drm/i915/intel_hotplug.c | 3 +++
6 files changed, 66 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 8d50d4f..6d93334 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -214,6 +214,7 @@ enum hpd_pin {
HPD_PORT_B,
HPD_PORT_C,
HPD_PORT_D,
+ HPD_PORT_E,
HPD_NUM_PINS
};
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 1118c39..420cf5a 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -61,6 +61,13 @@ static const u32 hpd_cpt[HPD_NUM_PINS] = {
[HPD_PORT_D] = SDE_PORTD_HOTPLUG_CPT
};
+static const u32 hpd_spt[HPD_NUM_PINS] = {
+ [HPD_PORT_B] = SDE_PORTB_HOTPLUG_CPT,
+ [HPD_PORT_C] = SDE_PORTC_HOTPLUG_CPT,
+ [HPD_PORT_D] = SDE_PORTD_HOTPLUG_CPT,
+ [HPD_PORT_E] = SDE_PORTE_HOTPLUG_SPT
+};
+
static const u32 hpd_mask_i915[HPD_NUM_PINS] = {
[HPD_CRT] = CRT_HOTPLUG_INT_EN,
[HPD_SDVO_B] = SDVOB_HOTPLUG_INT_EN,
@@ -1252,6 +1259,8 @@ static bool pch_port_hotplug_long_detect(enum port port, u32 val)
return val & PORTC_HOTPLUG_LONG_DETECT;
case PORT_D:
return val & PORTD_HOTPLUG_LONG_DETECT;
+ case PORT_E:
+ return val & PORTE_HOTPLUG_LONG_DETECT;
default:
return false;
}
@@ -1752,7 +1761,12 @@ static void cpt_irq_handler(struct drm_device *dev, u32 pch_iir)
{
struct drm_i915_private *dev_priv = dev->dev_private;
int pipe;
- u32 hotplug_trigger = pch_iir & SDE_HOTPLUG_MASK_CPT;
+ u32 hotplug_trigger;
+
+ if (HAS_PCH_SPT(dev))
+ hotplug_trigger = pch_iir & SDE_HOTPLUG_MASK_SPT;
+ else
+ hotplug_trigger = pch_iir & SDE_HOTPLUG_MASK_CPT;
if (hotplug_trigger) {
u32 dig_hotplug_reg, pin_mask, long_mask;
@@ -1760,9 +1774,24 @@ static void cpt_irq_handler(struct drm_device *dev, 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_cpt,
- pch_port_hotplug_long_detect);
+ if (HAS_PCH_SPT(dev)) {
+ intel_get_hpd_pins(&pin_mask, &long_mask,
+ hotplug_trigger,
+ dig_hotplug_reg, hpd_spt,
+ pch_port_hotplug_long_detect);
+
+ /* detect PORTE HP event */
+ dig_hotplug_reg = I915_READ(PCH_PORT_HOTPLUG2);
+ if (pch_port_hotplug_long_detect(PORT_E,
+ dig_hotplug_reg))
+ long_mask |= 1 << HPD_PORT_E;
+ }
+ else
+ intel_get_hpd_pins(&pin_mask, &long_mask,
+ hotplug_trigger,
+ dig_hotplug_reg, hpd_cpt,
+ pch_port_hotplug_long_detect);
+
intel_hpd_irq_handler(dev, pin_mask, long_mask);
}
@@ -2984,6 +3013,11 @@ static void ibx_hpd_irq_setup(struct drm_device *dev)
for_each_intel_encoder(dev, intel_encoder)
if (dev_priv->hotplug.stats[intel_encoder->hpd_pin].state == HPD_ENABLED)
enabled_irqs |= hpd_ibx[intel_encoder->hpd_pin];
+ } else if (HAS_PCH_SPT(dev)) {
+ hotplug_irqs = SDE_HOTPLUG_MASK_SPT;
+ for_each_intel_encoder(dev, intel_encoder)
+ if (dev_priv->hotplug.stats[intel_encoder->hpd_pin].state == HPD_ENABLED)
+ enabled_irqs |= hpd_spt[intel_encoder->hpd_pin];
} else {
hotplug_irqs = SDE_HOTPLUG_MASK_CPT;
for_each_intel_encoder(dev, intel_encoder)
@@ -3005,6 +3039,13 @@ static void ibx_hpd_irq_setup(struct drm_device *dev)
hotplug |= PORTC_HOTPLUG_ENABLE | PORTC_PULSE_DURATION_2ms;
hotplug |= PORTB_HOTPLUG_ENABLE | PORTB_PULSE_DURATION_2ms;
I915_WRITE(PCH_PORT_HOTPLUG, hotplug);
+
+ /* enable SPT PORTE hot plug */
+ if (HAS_PCH_SPT(dev)) {
+ hotplug = I915_READ(PCH_PORT_HOTPLUG2);
+ hotplug |= PORTE_HOTPLUG_ENABLE;
+ I915_WRITE(PCH_PORT_HOTPLUG2, hotplug);
+ }
}
static void bxt_hpd_irq_setup(struct drm_device *dev)
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 3a77678..cdd2244 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -5940,6 +5940,7 @@ enum skl_disp_power_wells {
#define SDE_AUXC_CPT (1 << 26)
#define SDE_AUXB_CPT (1 << 25)
#define SDE_AUX_MASK_CPT (7 << 25)
+#define SDE_PORTE_HOTPLUG_SPT (1 << 25)
#define SDE_PORTD_HOTPLUG_CPT (1 << 23)
#define SDE_PORTC_HOTPLUG_CPT (1 << 22)
#define SDE_PORTB_HOTPLUG_CPT (1 << 21)
@@ -5950,6 +5951,10 @@ enum skl_disp_power_wells {
SDE_PORTD_HOTPLUG_CPT | \
SDE_PORTC_HOTPLUG_CPT | \
SDE_PORTB_HOTPLUG_CPT)
+#define SDE_HOTPLUG_MASK_SPT (SDE_PORTE_HOTPLUG_SPT | \
+ SDE_PORTD_HOTPLUG_CPT | \
+ SDE_PORTC_HOTPLUG_CPT | \
+ SDE_PORTB_HOTPLUG_CPT)
#define SDE_GMBUS_CPT (1 << 17)
#define SDE_ERROR_CPT (1 << 16)
#define SDE_AUDIO_CP_REQ_C_CPT (1 << 10)
@@ -6021,6 +6026,13 @@ enum skl_disp_power_wells {
#define PORTB_HOTPLUG_SHORT_DETECT (1 << 0)
#define PORTB_HOTPLUG_LONG_DETECT (2 << 0)
+#define PCH_PORT_HOTPLUG2 0xc403C /* SHOTPLUG_CTL2 */
+#define PORTE_HOTPLUG_ENABLE (1 << 4)
+#define PORTE_HOTPLUG_STATUS_MASK (0x3 << 0)
+#define PORTE_HOTPLUG_NO_DETECT (0 << 0)
+#define PORTE_HOTPLUG_SHORT_DETECT (1 << 0)
+#define PORTE_HOTPLUG_LONG_DETECT (2 << 0)
+
#define PCH_GPIOA 0xc5010
#define PCH_GPIOB 0xc5014
#define PCH_GPIOC 0xc5018
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index ea10fa8..5009b01 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -1098,6 +1098,8 @@ bool ibx_digital_port_connected(struct drm_i915_private *dev_priv,
case PORT_D:
bit = SDE_PORTD_HOTPLUG_CPT;
break;
+ case PORT_E:
+ bit = SDE_PORTE_HOTPLUG_SPT;
default:
return true;
}
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 0643a91..3b5c0ee 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -5823,6 +5823,9 @@ intel_dp_init_connector(struct intel_digital_port *intel_dig_port,
case PORT_D:
intel_encoder->hpd_pin = HPD_PORT_D;
break;
+ case PORT_E:
+ intel_encoder->hpd_pin = HPD_PORT_E;
+ break;
default:
BUG();
}
diff --git a/drivers/gpu/drm/i915/intel_hotplug.c b/drivers/gpu/drm/i915/intel_hotplug.c
index 032a0bf..53c0173 100644
--- a/drivers/gpu/drm/i915/intel_hotplug.c
+++ b/drivers/gpu/drm/i915/intel_hotplug.c
@@ -91,6 +91,9 @@ bool intel_hpd_pin_to_port(enum hpd_pin pin, enum port *port)
case HPD_PORT_D:
*port = PORT_D;
return true;
+ case HPD_PORT_E:
+ *port = PORT_E;
+ return true;
default:
return false; /* no hpd */
}
--
2.1.4
More information about the Intel-gfx
mailing list