drm/i915/audio: Remove CL/BLC audio stuff

We don't use the audio code on crestline (CL) since it doesn't
support native HDMI output, and SDVO has it's own way of doing
audio.

And Bearlake-C (BLC) doesn't even exist in the real world, so
no point it trying to deal with it.

Cc: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
Cc: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Cc: Takashi Iwai <tiwai@suse.de>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221026170150.2654-4-ville.syrjala@linux.intel.com

diff --git a/drivers/gpu/drm/i915/display/intel_audio.c b/drivers/gpu/drm/i915/display/intel_audio.c
index c6e7cec..b91167e 100644 (file)
--- a/drivers/gpu/drm/i915/display/intel_audio.c
+++ b/drivers/gpu/drm/i915/display/intel_audio.c
@@ -336,17 +336,11 @@ static void g4x_audio_codec_disable(struct intel_encoder *encoder,
                                    const struct drm_connector_state *old_conn_state)
 {
        struct drm_i915_private *i915 = to_i915(encoder->base.dev);
-       u32 eldv, tmp;
-
-       tmp = intel_de_read(i915, G4X_AUD_VID_DID);
-       if (tmp == INTEL_AUDIO_DEVBLC || tmp == INTEL_AUDIO_DEVCL)
-               eldv = G4X_ELDV_DEVCL_DEVBLC;
-       else
-               eldv = G4X_ELDV_DEVCTG;
+       u32 tmp;
 
        /* Invalidate ELD */
        tmp = intel_de_read(i915, G4X_AUD_CNTL_ST);
-       tmp &= ~eldv;
+       tmp &= ~G4X_ELDV;
        intel_de_write(i915, G4X_AUD_CNTL_ST, tmp);
 }
 
@@ -357,24 +351,17 @@ static void g4x_audio_codec_enable(struct intel_encoder *encoder,
        struct drm_i915_private *i915 = to_i915(encoder->base.dev);
        struct drm_connector *connector = conn_state->connector;
        const u8 *eld = connector->eld;
-       u32 eldv;
        u32 tmp;
        int len, i;
 
-       tmp = intel_de_read(i915, G4X_AUD_VID_DID);
-       if (tmp == INTEL_AUDIO_DEVBLC || tmp == INTEL_AUDIO_DEVCL)
-               eldv = G4X_ELDV_DEVCL_DEVBLC;
-       else
-               eldv = G4X_ELDV_DEVCTG;
-
        if (intel_eld_uptodate(connector,
-                              G4X_AUD_CNTL_ST, eldv,
+                              G4X_AUD_CNTL_ST, G4X_ELDV,
                               G4X_AUD_CNTL_ST, G4X_ELD_ADDR_MASK,
                               G4X_HDMIW_HDMIEDID))
                return;
 
        tmp = intel_de_read(i915, G4X_AUD_CNTL_ST);
-       tmp &= ~(eldv | G4X_ELD_ADDR_MASK);
+       tmp &= ~(G4X_ELDV | G4X_ELD_ADDR_MASK);
        len = (tmp >> 9) & 0x1f;                /* ELD buffer size */
        intel_de_write(i915, G4X_AUD_CNTL_ST, tmp);
 
@@ -384,7 +371,7 @@ static void g4x_audio_codec_enable(struct intel_encoder *encoder,
                               *((const u32 *)eld + i));
 
        tmp = intel_de_read(i915, G4X_AUD_CNTL_ST);
-       tmp |= eldv;
+       tmp |= G4X_ELDV;
        intel_de_write(i915, G4X_AUD_CNTL_ST, tmp);
 }
 

diff --git a/drivers/gpu/drm/i915/display/intel_audio_regs.h b/drivers/gpu/drm/i915/display/intel_audio_regs.h
index e25248c..ebbdd06 100644 (file)
--- a/drivers/gpu/drm/i915/display/intel_audio_regs.h
+++ b/drivers/gpu/drm/i915/display/intel_audio_regs.h
@@ -8,14 +8,8 @@
 
 #include "i915_reg_defs.h"
 
-#define G4X_AUD_VID_DID                        _MMIO(DISPLAY_MMIO_BASE(i915) + 0x62020)
-#define   INTEL_AUDIO_DEVCL            0x808629FB
-#define   INTEL_AUDIO_DEVBLC           0x80862801
-#define   INTEL_AUDIO_DEVCTG           0x80862802
-
 #define G4X_AUD_CNTL_ST                        _MMIO(0x620B4)
-#define   G4X_ELDV_DEVCL_DEVBLC                (1 << 13)
-#define   G4X_ELDV_DEVCTG              (1 << 14)
+#define   G4X_ELDV                     (1 << 14)
 #define   G4X_ELD_ADDR_MASK            (0xf << 5)
 #define   G4X_ELD_ACK                  (1 << 4)
 #define G4X_HDMIW_HDMIEDID             _MMIO(0x6210C)