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-rw-r--r--drivers/gpu/drm/i915/display/intel_audio.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_audio.c b/drivers/gpu/drm/i915/display/intel_audio.c
index 5d545d2ffb33..093283fd1c28 100644
--- a/drivers/gpu/drm/i915/display/intel_audio.c
+++ b/drivers/gpu/drm/i915/display/intel_audio.c
@@ -707,6 +707,8 @@ static void ilk_audio_codec_disable(struct intel_encoder *encoder,
ilk_audio_regs_init(i915, pipe, &regs);
+ mutex_lock(&i915->display.audio.mutex);
+
/* Disable timestamps */
tmp = intel_de_read(i915, regs.aud_config);
tmp &= ~AUD_CONFIG_N_VALUE_INDEX;
@@ -721,6 +723,8 @@ static void ilk_audio_codec_disable(struct intel_encoder *encoder,
tmp = intel_de_read(i915, regs.aud_cntrl_st2);
tmp &= ~IBX_ELD_VALID(port);
intel_de_write(i915, regs.aud_cntrl_st2, tmp);
+
+ mutex_unlock(&i915->display.audio.mutex);
}
static void ilk_audio_codec_enable(struct intel_encoder *encoder,
@@ -749,6 +753,7 @@ static void ilk_audio_codec_enable(struct intel_encoder *encoder,
ilk_audio_regs_init(i915, pipe, &regs);
+ mutex_lock(&i915->display.audio.mutex);
/* Invalidate ELD */
tmp = intel_de_read(i915, regs.aud_cntrl_st2);
@@ -781,6 +786,8 @@ static void ilk_audio_codec_enable(struct intel_encoder *encoder,
else
tmp |= audio_config_hdmi_pixel_clock(crtc_state);
intel_de_write(i915, regs.aud_config, tmp);
+
+ mutex_unlock(&i915->display.audio.mutex);
}
/**