[PATCH] drm/i915/audio: Use BIOS provided value for RKL HDA link

From: Kai-Heng Feng
Date: Mon Sep 06 2021 - 00:13:32 EST


Commit 989634fb49ad ("drm/i915/audio: set HDA link parameters in
driver") makes HDMI audio on Lenovo P350 disappear.

So in addition to TGL, extend the logic to RKL to use BIOS provided
value to fix the regression.

Fixes: 989634fb49ad ("drm/i915/audio: set HDA link parameters in driver")
Signed-off-by: Kai-Heng Feng <kai.heng.feng@xxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_audio.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_audio.c b/drivers/gpu/drm/i915/display/intel_audio.c
index 532237588511..4e0f96bf6158 100644
--- a/drivers/gpu/drm/i915/display/intel_audio.c
+++ b/drivers/gpu/drm/i915/display/intel_audio.c
@@ -1308,8 +1308,9 @@ static void i915_audio_component_init(struct drm_i915_private *dev_priv)
else
aud_freq = aud_freq_init;

- /* use BIOS provided value for TGL unless it is a known bad value */
- if (IS_TIGERLAKE(dev_priv) && aud_freq_init != AUD_FREQ_TGL_BROKEN)
+ /* use BIOS provided value for TGL and RKL unless it is a known bad value */
+ if ((IS_TIGERLAKE(dev_priv) || IS_ROCKETLAKE(dev_priv)) &&
+ aud_freq_init != AUD_FREQ_TGL_BROKEN)
aud_freq = aud_freq_init;

drm_dbg_kms(&dev_priv->drm, "use AUD_FREQ_CNTRL of 0x%x (init value 0x%x)\n",
--
2.32.0