diff options
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_audio.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_audio.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_audio.c b/drivers/gpu/drm/i915/display/intel_audio.c index 40e7d862675e..b9bafec06fb8 100644 --- a/drivers/gpu/drm/i915/display/intel_audio.c +++ b/drivers/gpu/drm/i915/display/intel_audio.c @@ -26,7 +26,7 @@ #include <drm/drm_edid.h> #include <drm/drm_eld.h> -#include <drm/i915_component.h> +#include <drm/intel/i915_component.h> #include "i915_drv.h" #include "intel_atomic.h" @@ -183,6 +183,15 @@ static const struct hdmi_aud_ncts hdmi_aud_ncts_36bpp[] = { { 192000, TMDS_445_5M, 20480, 371250 }, }; +/* + * WA_14020863754: Implement Audio Workaround + * Corner case with Min Hblank Fix can cause audio hang + */ +static bool needs_wa_14020863754(struct drm_i915_private *i915) +{ + return (DISPLAY_VER(i915) == 20 || IS_BATTLEMAGE(i915)); +} + /* get AUD_CONFIG_PIXEL_CLOCK_HDMI_* value for mode */ static u32 audio_config_hdmi_pixel_clock(const struct intel_crtc_state *crtc_state) { @@ -415,6 +424,9 @@ static void hsw_audio_codec_disable(struct intel_encoder *encoder, intel_de_rmw(i915, HSW_AUD_PIN_ELD_CP_VLD, AUDIO_OUTPUT_ENABLE(cpu_transcoder), 0); + if (needs_wa_14020863754(i915)) + intel_de_rmw(i915, AUD_CHICKENBIT_REG3, DACBE_DISABLE_MIN_HBLANK_FIX, 0); + mutex_unlock(&i915->display.audio.mutex); } @@ -540,6 +552,9 @@ static void hsw_audio_codec_enable(struct intel_encoder *encoder, if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DP)) enable_audio_dsc_wa(encoder, crtc_state); + if (needs_wa_14020863754(i915)) + intel_de_rmw(i915, AUD_CHICKENBIT_REG3, 0, DACBE_DISABLE_MIN_HBLANK_FIX); + /* Enable audio presence detect */ intel_de_rmw(i915, HSW_AUD_PIN_ELD_CP_VLD, 0, AUDIO_OUTPUT_ENABLE(cpu_transcoder)); |