From b71a48ae94c89adc65fc6ec80085b8aec210df91 Mon Sep 17 00:00:00 2001 From: Kai Vehmanen Date: Mon, 30 Mar 2020 17:44:21 +0300 Subject: [PATCH] drm/i915: do AUD_FREQ_CNTRL state save on all gen9+ platforms MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Replace the TGL/ICL specific platform checks with a more generic check using INTEL_GEN(). Fixes bug with broken audio after S3 resume on JSL platforms. An initial version of state save and restore of AUD_FREQ_CNTRL register was added for subset of platforms in commit 2e5f462b981a ("drm/i915: save AUD_FREQ_CNTRL state at audio domain suspend"). The state save has proven to work well and it is needed in newer platforms, so needs to be extended. Although the logic is not in practise needed on GEN9/10 systems, follow the hardware specification and apply state and restore on all gen9+ platforms. Bspec: 49281 Link: https://github.com/thesofproject/linux/issues/1719 Signed-off-by: Kai Vehmanen Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20200330144421.11632-1-kai.vehmanen@linux.intel.com Reviewed-by: Matt Roper --- drivers/gpu/drm/i915/display/intel_audio.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_audio.c b/drivers/gpu/drm/i915/display/intel_audio.c index 47402c2869dbc..57b80971ae78f 100644 --- a/drivers/gpu/drm/i915/display/intel_audio.c +++ b/drivers/gpu/drm/i915/display/intel_audio.c @@ -893,7 +893,7 @@ static unsigned long i915_audio_component_get_power(struct device *kdev) ret = intel_display_power_get(dev_priv, POWER_DOMAIN_AUDIO); if (dev_priv->audio_power_refcount++ == 0) { - if (IS_TIGERLAKE(dev_priv) || IS_ICELAKE(dev_priv)) { + if (INTEL_GEN(dev_priv) >= 9) { intel_de_write(dev_priv, AUD_FREQ_CNTRL, dev_priv->audio_freq_cntrl); drm_dbg_kms(&dev_priv->drm, @@ -1175,7 +1175,7 @@ static void i915_audio_component_init(struct drm_i915_private *dev_priv) return; } - if (IS_TIGERLAKE(dev_priv) || IS_ICELAKE(dev_priv)) { + if (INTEL_GEN(dev_priv) >= 9) { dev_priv->audio_freq_cntrl = intel_de_read(dev_priv, AUD_FREQ_CNTRL); drm_dbg_kms(&dev_priv->drm, -- 2.39.5