[I/Unstable/OEM-5.13/OEM-5.14] [PATCH 1/1] drm/i915/audio: Use BIOS provided value for RKL HDA link

[Kai-Heng Feng]

BugLink: https://bugs.launchpad.net/bugs/1945556

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")
Reviewed-by: Kai Vehmanen <kai.vehmanen at linux.intel.com>
Signed-off-by: Kai-Heng Feng <kai.heng.feng at canonical.com>
Signed-off-by: Jani Nikula <jani.nikula at intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210906041300.508458-1-kai.heng.feng@canonical.com
(cherry picked from commit c6b40ee330fe09b332715bb7ec1467e4fcbe2e65 linux-next)
Signed-off-by: Kai-Heng Feng <kai.heng.feng at canonical.com>
---
 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 5322375885118..4e0f96bf61585 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