From ffac30be2a06b2516b2ce2afa2dcb2cf8af65a52 Mon Sep 17 00:00:00 2001
From: Kai-Heng Feng <kai.heng.feng@canonical.com>
Date: Mon, 6 Sep 2021 12:12:59 +0800
Subject: [PATCH] drm/i915/audio: Use BIOS provided value for RKL HDA link
Git-commit: ffac30be2a06b2516b2ce2afa2dcb2cf8af65a52
Patch-mainline: v5.15-rc5
Alt-commit: c6b40ee330fe09b332715bb7ec1467e4fcbe2e65
References: git-fixes stable-5.14.12
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@linux.intel.com>
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210906041300.508458-1-kai.heng.feng@canonical.com
(cherry picked from commit c6b40ee330fe09b332715bb7ec1467e4fcbe2e65)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
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",
--
2.26.2