diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_sdvo.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_sdvo.c | 61 |
1 files changed, 41 insertions, 20 deletions
diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c index c42b636c2087..06679f164b3e 100644 --- a/drivers/gpu/drm/i915/intel_sdvo.c +++ b/drivers/gpu/drm/i915/intel_sdvo.c @@ -74,7 +74,7 @@ struct intel_sdvo { struct i2c_adapter ddc; /* Register for the SDVO device: SDVOB or SDVOC */ - uint32_t sdvo_reg; + i915_reg_t sdvo_reg; /* Active outputs controlled by this SDVO output */ uint16_t controlled_output; @@ -120,8 +120,7 @@ struct intel_sdvo { */ bool is_tv; - /* On different gens SDVOB is at different places. */ - bool is_sdvob; + enum port port; /* This is for current tv format name */ int tv_format_index; @@ -245,7 +244,7 @@ static void intel_sdvo_write_sdvox(struct intel_sdvo *intel_sdvo, u32 val) u32 bval = val, cval = val; int i; - if (intel_sdvo->sdvo_reg == PCH_SDVOB) { + if (HAS_PCH_SPLIT(dev_priv)) { I915_WRITE(intel_sdvo->sdvo_reg, val); POSTING_READ(intel_sdvo->sdvo_reg); /* @@ -259,7 +258,7 @@ static void intel_sdvo_write_sdvox(struct intel_sdvo *intel_sdvo, u32 val) return; } - if (intel_sdvo->sdvo_reg == GEN3_SDVOB) + if (intel_sdvo->port == PORT_B) cval = I915_READ(GEN3_SDVOC); else bval = I915_READ(GEN3_SDVOB); @@ -422,7 +421,7 @@ static const struct _sdvo_cmd_name { SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HBUF_DATA), }; -#define SDVO_NAME(svdo) ((svdo)->is_sdvob ? "SDVOB" : "SDVOC") +#define SDVO_NAME(svdo) ((svdo)->port == PORT_B ? "SDVOB" : "SDVOC") static void intel_sdvo_debug_write(struct intel_sdvo *intel_sdvo, u8 cmd, const void *args, int args_len) @@ -1282,14 +1281,10 @@ static void intel_sdvo_pre_enable(struct intel_encoder *intel_encoder) sdvox |= SDVO_BORDER_ENABLE; } else { sdvox = I915_READ(intel_sdvo->sdvo_reg); - switch (intel_sdvo->sdvo_reg) { - case GEN3_SDVOB: + if (intel_sdvo->port == PORT_B) sdvox &= SDVOB_PRESERVE_MASK; - break; - case GEN3_SDVOC: + else sdvox &= SDVOC_PRESERVE_MASK; - break; - } sdvox |= (9 << 19) | SDVO_BORDER_ENABLE; } @@ -1464,12 +1459,23 @@ static void intel_disable_sdvo(struct intel_encoder *encoder) * matching DP port to be enabled on transcoder A. */ if (HAS_PCH_IBX(dev_priv) && crtc->pipe == PIPE_B) { + /* + * We get CPU/PCH FIFO underruns on the other pipe when + * doing the workaround. Sweep them under the rug. + */ + intel_set_cpu_fifo_underrun_reporting(dev_priv, PIPE_A, false); + intel_set_pch_fifo_underrun_reporting(dev_priv, PIPE_A, false); + temp &= ~SDVO_PIPE_B_SELECT; temp |= SDVO_ENABLE; intel_sdvo_write_sdvox(intel_sdvo, temp); temp &= ~SDVO_ENABLE; intel_sdvo_write_sdvox(intel_sdvo, temp); + + intel_wait_for_vblank_if_active(dev_priv->dev, PIPE_A); + intel_set_cpu_fifo_underrun_reporting(dev_priv, PIPE_A, true); + intel_set_pch_fifo_underrun_reporting(dev_priv, PIPE_A, true); } } @@ -2251,7 +2257,7 @@ intel_sdvo_select_ddc_bus(struct drm_i915_private *dev_priv, { struct sdvo_device_mapping *mapping; - if (sdvo->is_sdvob) + if (sdvo->port == PORT_B) mapping = &(dev_priv->sdvo_mappings[0]); else mapping = &(dev_priv->sdvo_mappings[1]); @@ -2269,7 +2275,7 @@ intel_sdvo_select_i2c_bus(struct drm_i915_private *dev_priv, struct sdvo_device_mapping *mapping; u8 pin; - if (sdvo->is_sdvob) + if (sdvo->port == PORT_B) mapping = &dev_priv->sdvo_mappings[0]; else mapping = &dev_priv->sdvo_mappings[1]; @@ -2307,7 +2313,7 @@ intel_sdvo_get_slave_addr(struct drm_device *dev, struct intel_sdvo *sdvo) struct drm_i915_private *dev_priv = dev->dev_private; struct sdvo_device_mapping *my_mapping, *other_mapping; - if (sdvo->is_sdvob) { + if (sdvo->port == PORT_B) { my_mapping = &dev_priv->sdvo_mappings[0]; other_mapping = &dev_priv->sdvo_mappings[1]; } else { @@ -2332,7 +2338,7 @@ intel_sdvo_get_slave_addr(struct drm_device *dev, struct intel_sdvo *sdvo) /* No SDVO device info is found for another DVO port, * so use mapping assumption we had before BIOS parsing. */ - if (sdvo->is_sdvob) + if (sdvo->port == PORT_B) return 0x70; else return 0x72; @@ -2939,18 +2945,31 @@ intel_sdvo_init_ddc_proxy(struct intel_sdvo *sdvo, return i2c_add_adapter(&sdvo->ddc) == 0; } -bool intel_sdvo_init(struct drm_device *dev, uint32_t sdvo_reg, bool is_sdvob) +static void assert_sdvo_port_valid(const struct drm_i915_private *dev_priv, + enum port port) +{ + if (HAS_PCH_SPLIT(dev_priv)) + WARN_ON(port != PORT_B); + else + WARN_ON(port != PORT_B && port != PORT_C); +} + +bool intel_sdvo_init(struct drm_device *dev, + i915_reg_t sdvo_reg, enum port port) { struct drm_i915_private *dev_priv = dev->dev_private; struct intel_encoder *intel_encoder; struct intel_sdvo *intel_sdvo; int i; + + assert_sdvo_port_valid(dev_priv, port); + intel_sdvo = kzalloc(sizeof(*intel_sdvo), GFP_KERNEL); if (!intel_sdvo) return false; intel_sdvo->sdvo_reg = sdvo_reg; - intel_sdvo->is_sdvob = is_sdvob; + intel_sdvo->port = port; intel_sdvo->slave_addr = intel_sdvo_get_slave_addr(dev, intel_sdvo) >> 1; intel_sdvo_select_i2c_bus(dev_priv, intel_sdvo); if (!intel_sdvo_init_ddc_proxy(intel_sdvo, dev)) @@ -3000,8 +3019,10 @@ bool intel_sdvo_init(struct drm_device *dev, uint32_t sdvo_reg, bool is_sdvob) * hotplug lines. */ if (intel_sdvo->hotplug_active) { - intel_encoder->hpd_pin = - intel_sdvo->is_sdvob ? HPD_SDVO_B : HPD_SDVO_C; + if (intel_sdvo->port == PORT_B) + intel_encoder->hpd_pin = HPD_SDVO_B; + else + intel_encoder->hpd_pin = HPD_SDVO_C; } /* |