From aef9f33b7658a7489f71df5d6e6ecb47f2521e8a Mon Sep 17 00:00:00 2001 From: Imre Deak Date: Tue, 23 Oct 2018 17:43:10 +0300 Subject: drm/i915: Ensure proper HDA suspend/resume ordering with a device link MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit In order to ensure that our system suspend and resume callbacks are called in the correct order wrt. those of the HDA driver add a device link to the HDA driver during audio component binding time. With i915 as the supplier and HDA as the consumer the PM framework will guarantee the HDA->i915 suspend (and shutdown) and i915->HDA resume order. Atm, the lack of this ordering is not a problem, since all the i915 suspend/resume steps that need to be ordered wrt. the HDA driver's suspend/resume steps are separated out to the i915 suspend_late/resume_early hooks. That will change in a follow-up patchset where we'll need this ordering guarantee for steps that are in the i915 suspend/resume hooks (and which can't be moved to suspend_late/resume_early for other reasons). So this patch is a preparation for that follow-up patchset. The change also allows us to move towards removing the i915 suspend_late/resume_early hooks alltogether. Since we only need to ensure the ordering during suspend/resume and not during driver probing create the link with DL_FLAG_STATELESS. Since the probe time ordering has to be optional we use the component framework for that. Similarly for runtime PM we depend on the audio driver getting/putting an i915 runtime PM reference whenever it needs it (along with the proper i915 display power domain) via the audio component ops get_power / put_power hooks. So we create the device link without DL_FLAG_PM_RUNTIME. v2: (Ville) - Add a note to the commit message about not using the device link runtime PM ordering. - Handle the error return from device_link_add(). Cc: Ville Syrjälä Cc: Takashi Iwai Cc: Lukas Wunner Signed-off-by: Imre Deak Reviewed-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20181023144310.8272-1-imre.deak@intel.com --- drivers/gpu/drm/i915/intel_audio.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'drivers/gpu/drm/i915/intel_audio.c') diff --git a/drivers/gpu/drm/i915/intel_audio.c b/drivers/gpu/drm/i915/intel_audio.c index 769f3f586661..b2c656a46be6 100644 --- a/drivers/gpu/drm/i915/intel_audio.c +++ b/drivers/gpu/drm/i915/intel_audio.c @@ -912,6 +912,9 @@ static int i915_audio_component_bind(struct device *i915_kdev, if (WARN_ON(acomp->base.ops || acomp->base.dev)) return -EEXIST; + if (WARN_ON(!device_link_add(hda_kdev, i915_kdev, DL_FLAG_STATELESS))) + return -ENOMEM; + drm_modeset_lock_all(&dev_priv->drm); acomp->base.ops = &i915_audio_component_ops; acomp->base.dev = i915_kdev; @@ -935,6 +938,8 @@ static void i915_audio_component_unbind(struct device *i915_kdev, acomp->base.dev = NULL; dev_priv->audio_component = NULL; drm_modeset_unlock_all(&dev_priv->drm); + + device_link_remove(hda_kdev, i915_kdev); } static const struct component_ops i915_audio_component_bind_ops = { -- cgit v1.2.3 From 5a400aa3c562c4a726b4da286e63c96db905ade1 Mon Sep 17 00:00:00 2001 From: Clint Taylor Date: Thu, 25 Oct 2018 11:52:00 -0700 Subject: drm/i915/hdmi: Add HDMI 2.0 audio clock recovery N values HDMI 2.0 594Mhz modes were incorrectly selecting 25.200Mhz Automatic N value mode instead of HDMI specification values. V2: Fix 88.2 Hz N value Cc: Jani Nikula Cc: stable@vger.kernel.org Signed-off-by: Clint Taylor Signed-off-by: Jani Nikula Link: https://patchwork.freedesktop.org/patch/msgid/1540493521-1746-2-git-send-email-clinton.a.taylor@intel.com --- drivers/gpu/drm/i915/intel_audio.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) (limited to 'drivers/gpu/drm/i915/intel_audio.c') diff --git a/drivers/gpu/drm/i915/intel_audio.c b/drivers/gpu/drm/i915/intel_audio.c index b2c656a46be6..ccd88da20a14 100644 --- a/drivers/gpu/drm/i915/intel_audio.c +++ b/drivers/gpu/drm/i915/intel_audio.c @@ -144,6 +144,9 @@ static const struct { /* HDMI N/CTS table */ #define TMDS_297M 297000 #define TMDS_296M 296703 +#define TMDS_594M 594000 +#define TMDS_593M 593407 + static const struct { int sample_rate; int clock; @@ -164,6 +167,20 @@ static const struct { { 176400, TMDS_297M, 18816, 247500 }, { 192000, TMDS_296M, 23296, 281250 }, { 192000, TMDS_297M, 20480, 247500 }, + { 44100, TMDS_593M, 8918, 937500 }, + { 44100, TMDS_594M, 9408, 990000 }, + { 48000, TMDS_593M, 5824, 562500 }, + { 48000, TMDS_594M, 6144, 594000 }, + { 32000, TMDS_593M, 5824, 843750 }, + { 32000, TMDS_594M, 3072, 445500 }, + { 88200, TMDS_593M, 17836, 937500 }, + { 88200, TMDS_594M, 18816, 990000 }, + { 96000, TMDS_593M, 11648, 562500 }, + { 96000, TMDS_594M, 12288, 594000 }, + { 176400, TMDS_593M, 35672, 937500 }, + { 176400, TMDS_594M, 37632, 990000 }, + { 192000, TMDS_593M, 23296, 562500 }, + { 192000, TMDS_594M, 24576, 594000 }, }; /* get AUD_CONFIG_PIXEL_CLOCK_HDMI_* value for mode */ -- cgit v1.2.3 From fc3660533fefd9177430d4eb84a89b157267503a Mon Sep 17 00:00:00 2001 From: Clint Taylor Date: Wed, 31 Oct 2018 13:54:55 -0700 Subject: drm/i915/hdmi: Reorder structure to match specification reorder structure of 297, 594 N values to group Audio Sample Frequencies together to make updating from HDMI specification easier. V2: Match patch 1/2 version V3: Arrange by sample freq, then pixel clock. Cc: Jani Nikula Signed-off-by: Clint Taylor Signed-off-by: Jani Nikula Link: https://patchwork.freedesktop.org/patch/msgid/1541019295-20016-1-git-send-email-clinton.a.taylor@intel.com --- drivers/gpu/drm/i915/intel_audio.c | 32 ++++++++++++++++---------------- 1 file changed, 16 insertions(+), 16 deletions(-) (limited to 'drivers/gpu/drm/i915/intel_audio.c') diff --git a/drivers/gpu/drm/i915/intel_audio.c b/drivers/gpu/drm/i915/intel_audio.c index ccd88da20a14..ae55a6865d5c 100644 --- a/drivers/gpu/drm/i915/intel_audio.c +++ b/drivers/gpu/drm/i915/intel_audio.c @@ -153,32 +153,32 @@ static const struct { int n; int cts; } hdmi_aud_ncts[] = { - { 44100, TMDS_296M, 4459, 234375 }, - { 44100, TMDS_297M, 4704, 247500 }, - { 48000, TMDS_296M, 5824, 281250 }, - { 48000, TMDS_297M, 5120, 247500 }, { 32000, TMDS_296M, 5824, 421875 }, { 32000, TMDS_297M, 3072, 222750 }, + { 32000, TMDS_593M, 5824, 843750 }, + { 32000, TMDS_594M, 3072, 445500 }, + { 44100, TMDS_296M, 4459, 234375 }, + { 44100, TMDS_297M, 4704, 247500 }, + { 44100, TMDS_593M, 8918, 937500 }, + { 44100, TMDS_594M, 9408, 990000 }, { 88200, TMDS_296M, 8918, 234375 }, { 88200, TMDS_297M, 9408, 247500 }, - { 96000, TMDS_296M, 11648, 281250 }, - { 96000, TMDS_297M, 10240, 247500 }, + { 88200, TMDS_593M, 17836, 937500 }, + { 88200, TMDS_594M, 18816, 990000 }, { 176400, TMDS_296M, 17836, 234375 }, { 176400, TMDS_297M, 18816, 247500 }, - { 192000, TMDS_296M, 23296, 281250 }, - { 192000, TMDS_297M, 20480, 247500 }, - { 44100, TMDS_593M, 8918, 937500 }, - { 44100, TMDS_594M, 9408, 990000 }, + { 176400, TMDS_593M, 35672, 937500 }, + { 176400, TMDS_594M, 37632, 990000 }, + { 48000, TMDS_296M, 5824, 281250 }, + { 48000, TMDS_297M, 5120, 247500 }, { 48000, TMDS_593M, 5824, 562500 }, { 48000, TMDS_594M, 6144, 594000 }, - { 32000, TMDS_593M, 5824, 843750 }, - { 32000, TMDS_594M, 3072, 445500 }, - { 88200, TMDS_593M, 17836, 937500 }, - { 88200, TMDS_594M, 18816, 990000 }, + { 96000, TMDS_296M, 11648, 281250 }, + { 96000, TMDS_297M, 10240, 247500 }, { 96000, TMDS_593M, 11648, 562500 }, { 96000, TMDS_594M, 12288, 594000 }, - { 176400, TMDS_593M, 35672, 937500 }, - { 176400, TMDS_594M, 37632, 990000 }, + { 192000, TMDS_296M, 23296, 281250 }, + { 192000, TMDS_297M, 20480, 247500 }, { 192000, TMDS_593M, 23296, 562500 }, { 192000, TMDS_594M, 24576, 594000 }, }; -- cgit v1.2.3