diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 15c6dc0b4f37ff69278660c1a1dc01f7d9e973b3..9dbc143cac2760c4626d09ea507cc59a091ef25b 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1944,6 +1944,8 @@ struct drm_i915_private {
/* perform PHY state sanity checks? */
bool chv_phy_assert[2];
+ struct intel_encoder *dig_port_map[I915_MAX_PORTS];
+
/*
* NOTE: This is the dri1/ums dungeon, don't add stuff here. Your patch
* will be rejected. Instead look for a better place.
diff --git a/drivers/gpu/drm/i915/intel_audio.c b/drivers/gpu/drm/i915/intel_audio.c
index eeac9f763110cb4efc1b7b49aac2142509248288..de465f2876d1ce80cffb10b3f4ff47ebf5eb638f 100644
--- a/drivers/gpu/drm/i915/intel_audio.c
+++ b/drivers/gpu/drm/i915/intel_audio.c
@@ -636,15 +636,14 @@ static int i915_audio_component_sync_audio_rate(struct device *dev,
int port, int rate)
{
struct drm_i915_private *dev_priv = dev_to_i915(dev);
- struct drm_device *drm_dev = dev_priv->dev;
struct intel_encoder *intel_encoder;
- struct intel_digital_port *intel_dig_port;
struct intel_crtc *crtc;
struct drm_display_mode *mode;
struct i915_audio_component *acomp = dev_priv->audio_component;
- enum pipe pipe = -1;
+ enum pipe pipe = INVALID_PIPE;
u32 tmp;
int n;
+ int err = 0;
/* HSW, BDW, SKL, KBL need this fix */
if (!IS_SKYLAKE(dev_priv) &&
@@ -655,26 +654,22 @@ static int i915_audio_component_sync_audio_rate(struct device *dev,
mutex_lock(&dev_priv->av_mutex);
/* 1. get the pipe */
- for_each_intel_encoder(drm_dev, intel_encoder) {
- if (intel_encoder->type != INTEL_OUTPUT_HDMI)
- continue;
- intel_dig_port = enc_to_dig_port(&intel_encoder->base);
- if (port == intel_dig_port->port) {
- crtc = to_intel_crtc(intel_encoder->base.crtc);
- if (!crtc) {
- DRM_DEBUG_KMS("%s: crtc is NULL\n", __func__);
- continue;
- }
- pipe = crtc->pipe;
- break;
- }
+ intel_encoder = dev_priv->dig_port_map[port];
+ /* intel_encoder might be NULL for DP MST */
+ if (!intel_encoder || !intel_encoder->base.crtc ||
+ intel_encoder->type != INTEL_OUTPUT_HDMI) {
+ DRM_DEBUG_KMS("no valid port %c\n", port_name(port));
+ err = -ENODEV;
+ goto unlock;
}
-
+ crtc = to_intel_crtc(intel_encoder->base.crtc);
+ pipe = crtc->pipe;
if (pipe == INVALID_PIPE) {
DRM_DEBUG_KMS("no pipe for the port %c\n", port_name(port));
- mutex_unlock(&dev_priv->av_mutex);
- return -ENODEV;
+ err = -ENODEV;
+ goto unlock;
}
+
DRM_DEBUG_KMS("pipe %c connects port %c\n",
pipe_name(pipe), port_name(port));
mode = &crtc->config->base.adjusted_mode;
@@ -687,8 +682,7 @@ static int i915_audio_component_sync_audio_rate(struct device *dev,
tmp = I915_READ(HSW_AUD_CFG(pipe));
tmp &= ~AUD_CONFIG_N_PROG_ENABLE;
I915_WRITE(HSW_AUD_CFG(pipe), tmp);
- mutex_unlock(&dev_priv->av_mutex);
- return 0;
+ goto unlock;
}
n = audio_config_get_n(mode, rate);
@@ -698,8 +692,7 @@ static int i915_audio_component_sync_audio_rate(struct device *dev,
tmp = I915_READ(HSW_AUD_CFG(pipe));
tmp &= ~AUD_CONFIG_N_PROG_ENABLE;
I915_WRITE(HSW_AUD_CFG(pipe), tmp);
- mutex_unlock(&dev_priv->av_mutex);
- return 0;
+ goto unlock;
}
/* 3. set the N/CTS/M */
@@ -707,8 +700,9 @@ static int i915_audio_component_sync_audio_rate(struct device *dev,
tmp = audio_config_setup_n_reg(n, tmp);
I915_WRITE(HSW_AUD_CFG(pipe), tmp);
+ unlock:
mutex_unlock(&dev_priv->av_mutex);
- return 0;
+ return err;
}
static int i915_audio_component_get_eld(struct device *dev, int port,
@@ -716,27 +710,22 @@ static int i915_audio_component_get_eld(struct device *dev, int port,
unsigned char *buf, int max_bytes)
{
struct drm_i915_private *dev_priv = dev_to_i915(dev);
- struct drm_device *drm_dev = dev_priv->dev;
struct intel_encoder *intel_encoder;
struct intel_digital_port *intel_dig_port;
const u8 *eld;
int ret = -EINVAL;
mutex_lock(&dev_priv->av_mutex);
- for_each_intel_encoder(drm_dev, intel_encoder) {
- if (intel_encoder->type != INTEL_OUTPUT_DISPLAYPORT &&
- intel_encoder->type != INTEL_OUTPUT_HDMI)
- continue;
+ intel_encoder = dev_priv->dig_port_map[port];
+ /* intel_encoder might be NULL for DP MST */
+ if (intel_encoder) {
+ ret = 0;
intel_dig_port = enc_to_dig_port(&intel_encoder->base);
- if (port == intel_dig_port->port) {
- ret = 0;
- *enabled = intel_dig_port->audio_connector != NULL;
- if (!*enabled)
- break;
+ *enabled = intel_dig_port->audio_connector != NULL;
+ if (*enabled) {
eld = intel_dig_port->audio_connector->eld;
ret = drm_eld_size(eld);
memcpy(buf, eld, min(max_bytes, ret));
- break;
}
}
diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index 76ce7c2960b6fb790984ff1f168be21c9a7132c7..59deb0d85533b85cd40028747ce1c890177b1684 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -3295,6 +3295,7 @@ void intel_ddi_init(struct drm_device *dev, enum port port)
intel_encoder->get_config = intel_ddi_get_config;
intel_dig_port->port = port;
+ dev_priv->dig_port_map[port] = intel_encoder;
intel_dig_port->saved_port_bits = I915_READ(DDI_BUF_CTL(port)) &
(DDI_BUF_PORT_REVERSAL |
DDI_A_4_LANES);
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index e1ceff7ab265b73fe70a0db5ae4870fcdb92fd04..e1456ead5c53791baf00db90cfb9d64b03e7918d 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -6003,6 +6003,7 @@ intel_dp_init(struct drm_device *dev,
}
intel_dig_port->port = port;
+ dev_priv->dig_port_map[port] = intel_encoder;
intel_dig_port->dp.output_reg = output_reg;
intel_encoder->type = INTEL_OUTPUT_DISPLAYPORT;
diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
index bdd462e7c69088088d3d855f9bb51a0b9d29b2eb..c046017be786d40ac3cacffd1c884a783f9bbb2e 100644
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -2148,6 +2148,7 @@ void intel_hdmi_init_connector(struct intel_digital_port *intel_dig_port,
void intel_hdmi_init(struct drm_device *dev,
i915_reg_t hdmi_reg, enum port port)
{
+ struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_digital_port *intel_dig_port;
struct intel_encoder *intel_encoder;
struct intel_connector *intel_connector;
@@ -2216,6 +2217,7 @@ void intel_hdmi_init(struct drm_device *dev,
intel_encoder->cloneable |= 1 << INTEL_OUTPUT_HDMI;
intel_dig_port->port = port;
+ dev_priv->dig_port_map[port] = intel_encoder;
intel_dig_port->hdmi.hdmi_reg = hdmi_reg;
intel_dig_port->dp.output_reg = INVALID_MMIO_REG;