diff options
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_reg.h | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 45 |
2 files changed, 34 insertions, 14 deletions
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 5d5def7..f731565 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -2083,9 +2083,6 @@ #define DP_PIPEB_SELECT (1 << 30) #define DP_PIPE_MASK (1 << 30) -#define DP_PIPE_ENABLED(V, P) \ - (((V) & (DP_PIPE_MASK | DP_PORT_EN)) == ((P) << 30 | DP_PORT_EN)) - /* Link training mode - select a suitable mode for each stage */ #define DP_LINK_TRAIN_PAT_1 (0 << 28) #define DP_LINK_TRAIN_PAT_2 (1 << 28) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 5609c06..fc26cb4 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -979,11 +979,29 @@ static void assert_transcoder_disabled(struct drm_i915_private *dev_priv, pipe_name(pipe)); } +static bool dp_pipe_enabled(struct drm_i915_private *dev_priv, enum pipe pipe, + int reg, u32 port_sel, u32 val) +{ + if ((val & DP_PORT_EN) == 0) + return false; + + if (HAS_PCH_CPT(dev_priv->dev)) { + u32 trans_dp_ctl_reg = TRANS_DP_CTL(pipe); + u32 trans_dp_ctl = I915_READ(trans_dp_ctl_reg); + if ((trans_dp_ctl & TRANS_DP_PORT_SEL_MASK) != port_sel) + return false; + } else { + if ((val & DP_PIPE_MASK) != (pipe << 30)) + return false; + } + return true; +} + static void assert_pch_dp_disabled(struct drm_i915_private *dev_priv, - enum pipe pipe, int reg) + enum pipe pipe, int reg, u32 port_sel) { u32 val = I915_READ(reg); - WARN(DP_PIPE_ENABLED(val, pipe), + WARN(dp_pipe_enabled(dev_priv, pipe, reg, port_sel, val), "PCH DP (0x%08x) enabled on transcoder %c, should be disabled\n", reg, pipe_name(pipe)); } @@ -1003,9 +1021,9 @@ static void assert_pch_ports_disabled(struct drm_i915_private *dev_priv, int reg; u32 val; - assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_B); - assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_C); - assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_D); + assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_B, TRANS_DP_PORT_SEL_B); + assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_C, TRANS_DP_PORT_SEL_C); + assert_pch_dp_disabled(dev_priv, pipe, PCH_DP_D, TRANS_DP_PORT_SEL_D); reg = PCH_ADPA; val = I915_READ(reg); @@ -1334,19 +1352,24 @@ static void intel_disable_plane(struct drm_i915_private *dev_priv, } static void disable_pch_dp(struct drm_i915_private *dev_priv, - enum pipe pipe, int reg) + enum pipe pipe, int reg, u32 port_sel) { u32 val = I915_READ(reg); - if (DP_PIPE_ENABLED(val, pipe)) + if (dp_pipe_enabled(dev_priv, pipe, reg, port_sel, val)) { + DRM_DEBUG_KMS("Disabling pch dp %x on pipe %d\n", reg, pipe); I915_WRITE(reg, val & ~DP_PORT_EN); + } } static void disable_pch_hdmi(struct drm_i915_private *dev_priv, enum pipe pipe, int reg) { u32 val = I915_READ(reg); - if (HDMI_PIPE_ENABLED(val, pipe)) + if (HDMI_PIPE_ENABLED(val, pipe)) { + DRM_DEBUG_KMS("Disabling pch HDMI %x on pipe %d\n", + reg, pipe); I915_WRITE(reg, val & ~PORT_ENABLE); + } } /* Disable any ports connected to this transcoder */ @@ -1358,9 +1381,9 @@ static void intel_disable_pch_ports(struct drm_i915_private *dev_priv, val = I915_READ(PCH_PP_CONTROL); I915_WRITE(PCH_PP_CONTROL, val | PANEL_UNLOCK_REGS); - disable_pch_dp(dev_priv, pipe, PCH_DP_B); - disable_pch_dp(dev_priv, pipe, PCH_DP_C); - disable_pch_dp(dev_priv, pipe, PCH_DP_D); + disable_pch_dp(dev_priv, pipe, PCH_DP_B, TRANS_DP_PORT_SEL_B); + disable_pch_dp(dev_priv, pipe, PCH_DP_C, TRANS_DP_PORT_SEL_C); + disable_pch_dp(dev_priv, pipe, PCH_DP_D, TRANS_DP_PORT_SEL_D); reg = PCH_ADPA; val = I915_READ(reg); |