diff options
Diffstat (limited to '0008-drm-i915-save-AUD_FREQ_CNTRL-state-at-audio-domain-suspend.patch')
| -rw-r--r-- | 0008-drm-i915-save-AUD_FREQ_CNTRL-state-at-audio-domain-suspend.patch | 86 |
1 files changed, 0 insertions, 86 deletions
diff --git a/0008-drm-i915-save-AUD_FREQ_CNTRL-state-at-audio-domain-suspend.patch b/0008-drm-i915-save-AUD_FREQ_CNTRL-state-at-audio-domain-suspend.patch deleted file mode 100644 index 6ea75b6..0000000 --- a/0008-drm-i915-save-AUD_FREQ_CNTRL-state-at-audio-domain-suspend.patch +++ /dev/null @@ -1,86 +0,0 @@ -From c0da4d4ee458208d5427d0a284173bd39a95d040 Mon Sep 17 00:00:00 2001 -From: Kai Vehmanen <kai.vehmanen@linux.intel.com> -Date: Fri, 20 Sep 2019 11:39:18 +0300 -Subject: drm/i915: save AUD_FREQ_CNTRL state at audio domain suspend - -When audio power domain is suspended, the display driver must -save state of AUD_FREQ_CNTRL on Tiger Lake and Ice Lake -systems. The initial value of the register is set by BIOS and -is read by driver during the audio component init sequence. - -Cc: Jani Nikula <jani.nikula@intel.com> -Cc: Imre Deak <imre.deak@intel.com> -Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com> -Signed-off-by: Jani Nikula <jani.nikula@intel.com> -Link: https://patchwork.freedesktop.org/patch/msgid/20190920083918.27057-1-kai.vehmanen@linux.intel.com ---- - drivers/gpu/drm/i915/display/intel_audio.c | 17 +++++++++++++++-- - drivers/gpu/drm/i915/i915_drv.h | 1 + - drivers/gpu/drm/i915/i915_reg.h | 2 ++ - 3 files changed, 18 insertions(+), 2 deletions(-) - -diff --git a/drivers/gpu/drm/i915/display/intel_audio.c b/drivers/gpu/drm/i915/display/intel_audio.c -index ddcccf4408c3..439bc0a93410 100644 ---- a/drivers/gpu/drm/i915/display/intel_audio.c -+++ b/drivers/gpu/drm/i915/display/intel_audio.c -@@ -850,10 +850,17 @@ static unsigned long i915_audio_component_get_power(struct device *kdev) - - ret = intel_display_power_get(dev_priv, POWER_DOMAIN_AUDIO); - -- /* Force CDCLK to 2*BCLK as long as we need audio to be powered. */ -- if (dev_priv->audio_power_refcount++ == 0) -+ if (dev_priv->audio_power_refcount++ == 0) { -+ if (IS_TIGERLAKE(dev_priv) || IS_ICELAKE(dev_priv)) { -+ I915_WRITE(AUD_FREQ_CNTRL, dev_priv->audio_freq_cntrl); -+ DRM_DEBUG_KMS("restored AUD_FREQ_CNTRL to 0x%x\n", -+ dev_priv->audio_freq_cntrl); -+ } -+ -+ /* Force CDCLK to 2*BCLK as long as we need audio powered. */ - if (IS_CANNONLAKE(dev_priv) || IS_GEMINILAKE(dev_priv)) - glk_force_audio_cdclk(dev_priv, true); -+ } - - return ret; - } -@@ -1114,6 +1121,12 @@ static void i915_audio_component_init(struct drm_i915_private *dev_priv) - return; - } - -+ if (IS_TIGERLAKE(dev_priv) || IS_ICELAKE(dev_priv)) { -+ dev_priv->audio_freq_cntrl = I915_READ(AUD_FREQ_CNTRL); -+ DRM_DEBUG_KMS("init value of AUD_FREQ_CNTRL of 0x%x\n", -+ dev_priv->audio_freq_cntrl); -+ } -+ - dev_priv->audio_component_registered = true; - } - -diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h -index 89b6112bd66b..043ce1b47aeb 100644 ---- a/drivers/gpu/drm/i915/i915_drv.h -+++ b/drivers/gpu/drm/i915/i915_drv.h -@@ -1530,6 +1530,7 @@ struct drm_i915_private { - */ - struct mutex av_mutex; - int audio_power_refcount; -+ u32 audio_freq_cntrl; - - struct { - struct mutex mutex; -diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h -index f8ee9aba3955..e1fe356463ec 100644 ---- a/drivers/gpu/drm/i915/i915_reg.h -+++ b/drivers/gpu/drm/i915/i915_reg.h -@@ -9104,6 +9104,8 @@ enum { - #define HSW_AUD_CHICKENBIT _MMIO(0x65f10) - #define SKL_AUD_CODEC_WAKE_SIGNAL (1 << 15) - -+#define AUD_FREQ_CNTRL _MMIO(0x65900) -+ - /* - * HSW - ICL power wells - * --- -cgit v1.2.1-1-g437b - |