Define a HAS_TRANSCODER_EDP() macro that checks if we have defined an
offset for this transcoder. This allows platforms to be defined without
eDP transcoder.

Cc: Mika Kahola <[email protected]>
Cc: Imre Deak <[email protected]>
Cc: Rodrigo Vivi <[email protected]>
Signed-off-by: Lucas De Marchi <[email protected]>
---
 drivers/gpu/drm/i915/i915_drv.h      | 1 +
 drivers/gpu/drm/i915/intel_ddi.c     | 6 +++---
 drivers/gpu/drm/i915/intel_display.c | 5 ++++-
 3 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index cc09caf3870e..a8e9f0cf20f5 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -2519,6 +2519,7 @@ static inline unsigned int i915_sg_segment_size(void)
 #define HAS_DDI(dev_priv)               (INTEL_INFO(dev_priv)->display.has_ddi)
 #define HAS_FPGA_DBG_UNCLAIMED(dev_priv) (INTEL_INFO(dev_priv)->has_fpga_dbg)
 #define HAS_PSR(dev_priv)               (INTEL_INFO(dev_priv)->display.has_psr)
+#define HAS_TRANSCODER_EDP(dev_priv)    
(INTEL_INFO(dev_priv)->trans_offsets[TRANSCODER_EDP] != 0)
 
 #define HAS_RC6(dev_priv)               (INTEL_INFO(dev_priv)->has_rc6)
 #define HAS_RC6p(dev_priv)              (INTEL_INFO(dev_priv)->has_rc6p)
diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index ea83071a22c4..8eeffa027b74 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -1911,7 +1911,7 @@ bool intel_ddi_connector_get_hw_state(struct 
intel_connector *intel_connector)
                goto out;
        }
 
-       if (port == PORT_A)
+       if (HAS_TRANSCODER_EDP(dev_priv) && port == PORT_A)
                cpu_transcoder = TRANSCODER_EDP;
        else
                cpu_transcoder = (enum transcoder) pipe;
@@ -1973,7 +1973,7 @@ static void intel_ddi_get_encoder_pipes(struct 
intel_encoder *encoder,
        if (!(tmp & DDI_BUF_CTL_ENABLE))
                goto out;
 
-       if (port == PORT_A) {
+       if (HAS_TRANSCODER_EDP(dev_priv) && port == PORT_A) {
                tmp = I915_READ(TRANS_DDI_FUNC_CTL(TRANSCODER_EDP));
 
                switch (tmp & TRANS_DDI_EDP_INPUT_MASK) {
@@ -3856,7 +3856,7 @@ static int intel_ddi_compute_config(struct intel_encoder 
*encoder,
        enum port port = encoder->port;
        int ret;
 
-       if (port == PORT_A)
+       if (HAS_TRANSCODER_EDP(dev_priv) && port == PORT_A)
                pipe_config->cpu_transcoder = TRANSCODER_EDP;
 
        if (intel_crtc_has_type(pipe_config, INTEL_OUTPUT_HDMI))
diff --git a/drivers/gpu/drm/i915/intel_display.c 
b/drivers/gpu/drm/i915/intel_display.c
index 9dfb99195144..8bf4bdf2006a 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -9688,7 +9688,7 @@ static bool hsw_get_transcoder_state(struct intel_crtc 
*crtc,
        struct drm_device *dev = crtc->base.dev;
        struct drm_i915_private *dev_priv = to_i915(dev);
        enum intel_display_power_domain power_domain;
-       unsigned long panel_transcoder_mask = BIT(TRANSCODER_EDP);
+       unsigned long panel_transcoder_mask = 0;
        unsigned long enabled_panel_transcoders = 0;
        enum transcoder panel_transcoder;
        u32 tmp;
@@ -9697,6 +9697,9 @@ static bool hsw_get_transcoder_state(struct intel_crtc 
*crtc,
                panel_transcoder_mask |=
                        BIT(TRANSCODER_DSI_0) | BIT(TRANSCODER_DSI_1);
 
+       if (HAS_TRANSCODER_EDP(dev_priv))
+               panel_transcoder_mask |= BIT(TRANSCODER_EDP);
+
        /*
         * The pipe->transcoder mapping is fixed with the exception of the eDP
         * and DSI transcoders handled below.
-- 
2.20.0

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