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authorDave Airlie <airlied@redhat.com>2016-11-11 09:25:32 +1000
committerDave Airlie <airlied@redhat.com>2016-11-11 09:25:32 +1000
commitdb8feb6979e91c2e916631a75dbfe9f10f6b05e5 (patch)
treeb4aa5965f207c18d908a794e5f4e647604d77553 /drivers/gpu/drm/i915/intel_audio.c
parentafdd548f742ca454fc343696de472f3aaa5dc488 (diff)
parent58e197d631d44f9f4817b8198b43132a40de1164 (diff)
downloadlinux-db8feb6979e91c2e916631a75dbfe9f10f6b05e5.tar.gz
linux-db8feb6979e91c2e916631a75dbfe9f10f6b05e5.tar.xz
Merge tag 'drm-intel-next-2016-11-08' of git://anongit.freedesktop.org/git/drm-intel into drm-next
- gpu idling rework for s/r (Imre) - vlv mappable scanout fix - speed up probing in resume (Lyude) - dp audio workarounds for gen9 (Dhinakaran) - more conversion to using dev_priv internally (Ville) - more gen9+ wm fixes and cleanups (Maarten) - shrinker cleanup&fixes (Chris) - reorg plane init code (Ville) - implement support for multiple timelines (prep work for scheduler) from Chris and all - untangle dev->struct_mutex locking as prep for multiple timelines (Chris) - refactor bxt phy code and collect it all in intel_dpio_phy.c (Ander) - another gvt with bugfixes all over from Zhenyu - piles of lspcon fixes from Imre - 90/270 rotation fixes (Ville) - guc log buffer support (Akash+Sagar) - fbc fixes from Paulo - untangle rpm vs. tiling-fences/mmaps (Chris) - fix atomic commit to wait on the right fences (Daniel Stone) * tag 'drm-intel-next-2016-11-08' of git://anongit.freedesktop.org/git/drm-intel: (181 commits) drm/i915: Update DRIVER_DATE to 20161108 drm/i915: Mark CPU cache as dirty when used for rendering drm/i915: Add assert for no pending GPU requests during suspend/resume in LR mode drm/i915: Make sure engines are idle during GPU idling in LR mode drm/i915: Avoid early GPU idling due to race with new request drm/i915: Avoid early GPU idling due to already pending idle work drm/i915: Limit Valleyview and earlier to only using mappable scanout drm/i915: Round tile chunks up for constructing partial VMAs drm/i915: Remove the vma from the object list upon close drm/i915: Reinit polling before hpd when resuming drm/i915: Remove redundant reprobe in i915_drm_resume drm/i915/dp: Extend BDW DP audio workaround to GEN9 platforms drm/i915/dp: BDW cdclk fix for DP audio drm/i915: Fix pages pin counting around swizzle quirk drm/i915: Fix test on inputs for vma_compare() drm/i915/guc: Cache the client mapping drm/i915: Tidy slab cache allocations drm/i915: Introduce HAS_64BIT_RELOC drm/i915: Show the execlist queue in debugfs/i915_engine_info drm/i915: Unify global_list into global_link ...
Diffstat (limited to 'drivers/gpu/drm/i915/intel_audio.c')
-rw-r--r--drivers/gpu/drm/i915/intel_audio.c112
1 files changed, 101 insertions, 11 deletions
diff --git a/drivers/gpu/drm/i915/intel_audio.c b/drivers/gpu/drm/i915/intel_audio.c
index 7093cfbb62b1..813fd74d9c8d 100644
--- a/drivers/gpu/drm/i915/intel_audio.c
+++ b/drivers/gpu/drm/i915/intel_audio.c
@@ -57,6 +57,63 @@
* struct &i915_audio_component_audio_ops @audio_ops is called from i915 driver.
*/
+/* DP N/M table */
+#define LC_540M 540000
+#define LC_270M 270000
+#define LC_162M 162000
+
+struct dp_aud_n_m {
+ int sample_rate;
+ int clock;
+ u16 m;
+ u16 n;
+};
+
+/* Values according to DP 1.4 Table 2-104 */
+static const struct dp_aud_n_m dp_aud_n_m[] = {
+ { 32000, LC_162M, 1024, 10125 },
+ { 44100, LC_162M, 784, 5625 },
+ { 48000, LC_162M, 512, 3375 },
+ { 64000, LC_162M, 2048, 10125 },
+ { 88200, LC_162M, 1568, 5625 },
+ { 96000, LC_162M, 1024, 3375 },
+ { 128000, LC_162M, 4096, 10125 },
+ { 176400, LC_162M, 3136, 5625 },
+ { 192000, LC_162M, 2048, 3375 },
+ { 32000, LC_270M, 1024, 16875 },
+ { 44100, LC_270M, 784, 9375 },
+ { 48000, LC_270M, 512, 5625 },
+ { 64000, LC_270M, 2048, 16875 },
+ { 88200, LC_270M, 1568, 9375 },
+ { 96000, LC_270M, 1024, 5625 },
+ { 128000, LC_270M, 4096, 16875 },
+ { 176400, LC_270M, 3136, 9375 },
+ { 192000, LC_270M, 2048, 5625 },
+ { 32000, LC_540M, 1024, 33750 },
+ { 44100, LC_540M, 784, 18750 },
+ { 48000, LC_540M, 512, 11250 },
+ { 64000, LC_540M, 2048, 33750 },
+ { 88200, LC_540M, 1568, 18750 },
+ { 96000, LC_540M, 1024, 11250 },
+ { 128000, LC_540M, 4096, 33750 },
+ { 176400, LC_540M, 3136, 18750 },
+ { 192000, LC_540M, 2048, 11250 },
+};
+
+static const struct dp_aud_n_m *
+audio_config_dp_get_n_m(struct intel_crtc *intel_crtc, int rate)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(dp_aud_n_m); i++) {
+ if (rate == dp_aud_n_m[i].sample_rate &&
+ intel_crtc->config->port_clock == dp_aud_n_m[i].clock)
+ return &dp_aud_n_m[i];
+ }
+
+ return NULL;
+}
+
static const struct {
int clock;
u32 config;
@@ -225,16 +282,43 @@ hsw_dp_audio_config_update(struct intel_crtc *intel_crtc, enum port port,
const struct drm_display_mode *adjusted_mode)
{
struct drm_i915_private *dev_priv = to_i915(intel_crtc->base.dev);
+ struct i915_audio_component *acomp = dev_priv->audio_component;
+ int rate = acomp ? acomp->aud_sample_rate[port] : 0;
+ const struct dp_aud_n_m *nm = audio_config_dp_get_n_m(intel_crtc, rate);
enum pipe pipe = intel_crtc->pipe;
u32 tmp;
+ if (nm)
+ DRM_DEBUG_KMS("using Maud %u, Naud %u\n", nm->m, nm->n);
+ else
+ DRM_DEBUG_KMS("using automatic Maud, Naud\n");
+
tmp = I915_READ(HSW_AUD_CFG(pipe));
tmp &= ~AUD_CONFIG_N_VALUE_INDEX;
tmp &= ~AUD_CONFIG_PIXEL_CLOCK_HDMI_MASK;
tmp &= ~AUD_CONFIG_N_PROG_ENABLE;
tmp |= AUD_CONFIG_N_VALUE_INDEX;
+ if (nm) {
+ tmp &= ~AUD_CONFIG_N_MASK;
+ tmp |= AUD_CONFIG_N(nm->n);
+ tmp |= AUD_CONFIG_N_PROG_ENABLE;
+ }
+
I915_WRITE(HSW_AUD_CFG(pipe), tmp);
+
+ tmp = I915_READ(HSW_AUD_M_CTS_ENABLE(pipe));
+ tmp &= ~AUD_CONFIG_M_MASK;
+ tmp &= ~AUD_M_CTS_M_VALUE_INDEX;
+ tmp &= ~AUD_M_CTS_M_PROG_ENABLE;
+
+ if (nm) {
+ tmp |= nm->m;
+ tmp |= AUD_M_CTS_M_VALUE_INDEX;
+ tmp |= AUD_M_CTS_M_PROG_ENABLE;
+ }
+
+ I915_WRITE(HSW_AUD_M_CTS_ENABLE(pipe), tmp);
}
static void
@@ -254,19 +338,24 @@ hsw_hdmi_audio_config_update(struct intel_crtc *intel_crtc, enum port port,
tmp &= ~AUD_CONFIG_N_PROG_ENABLE;
tmp |= audio_config_hdmi_pixel_clock(adjusted_mode);
- if (adjusted_mode->crtc_clock == TMDS_296M ||
- adjusted_mode->crtc_clock == TMDS_297M) {
- n = audio_config_hdmi_get_n(adjusted_mode, rate);
- if (n != 0) {
- tmp &= ~AUD_CONFIG_N_MASK;
- tmp |= AUD_CONFIG_N(n);
- tmp |= AUD_CONFIG_N_PROG_ENABLE;
- } else {
- DRM_DEBUG_KMS("no suitable N value is found\n");
- }
+ n = audio_config_hdmi_get_n(adjusted_mode, rate);
+ if (n != 0) {
+ DRM_DEBUG_KMS("using N %d\n", n);
+
+ tmp &= ~AUD_CONFIG_N_MASK;
+ tmp |= AUD_CONFIG_N(n);
+ tmp |= AUD_CONFIG_N_PROG_ENABLE;
+ } else {
+ DRM_DEBUG_KMS("using automatic N\n");
}
I915_WRITE(HSW_AUD_CFG(pipe), tmp);
+
+ tmp = I915_READ(HSW_AUD_M_CTS_ENABLE(pipe));
+ tmp &= ~AUD_CONFIG_M_MASK;
+ tmp &= ~AUD_M_CTS_M_VALUE_INDEX;
+ tmp |= AUD_M_CTS_M_PROG_ENABLE;
+ I915_WRITE(HSW_AUD_M_CTS_ENABLE(pipe), tmp);
}
static void
@@ -687,7 +776,8 @@ static int i915_audio_component_sync_audio_rate(struct device *kdev, int port,
/* 1. get the pipe */
intel_encoder = get_saved_enc(dev_priv, port, pipe);
if (!intel_encoder || !intel_encoder->base.crtc ||
- intel_encoder->type != INTEL_OUTPUT_HDMI) {
+ (intel_encoder->type != INTEL_OUTPUT_HDMI &&
+ intel_encoder->type != INTEL_OUTPUT_DP)) {
DRM_DEBUG_KMS("Not valid for port %c\n", port_name(port));
err = -ENODEV;
goto unlock;