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path: root/drivers/gpu/drm/i915/intel_ddi.c
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Diffstat (limited to 'drivers/gpu/drm/i915/intel_ddi.c')
-rw-r--r--drivers/gpu/drm/i915/intel_ddi.c88
1 files changed, 37 insertions, 51 deletions
diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index 324211ac9c55..63aca49d11a8 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -84,25 +84,17 @@ static enum port intel_ddi_get_encoder_port(struct intel_encoder *intel_encoder)
* in either FDI or DP modes only, as HDMI connections will work with both
* of those
*/
-static void intel_prepare_ddi_buffers(struct drm_device *dev, enum port port,
- bool use_fdi_mode)
+static void intel_prepare_ddi_buffers(struct drm_device *dev, enum port port)
{
struct drm_i915_private *dev_priv = dev->dev_private;
u32 reg;
int i;
- const u32 *ddi_translations = ((use_fdi_mode) ?
+ const u32 *ddi_translations = (port == PORT_E) ?
hsw_ddi_translations_fdi :
- hsw_ddi_translations_dp);
+ hsw_ddi_translations_dp;
- DRM_DEBUG_DRIVER("Initializing DDI buffers for port %c in %s mode\n",
- port_name(port),
- use_fdi_mode ? "FDI" : "DP");
-
- WARN((use_fdi_mode && (port != PORT_E)),
- "Programming port %c in FDI mode, this probably will not work.\n",
- port_name(port));
-
- for (i=0, reg=DDI_BUF_TRANS(port); i < ARRAY_SIZE(hsw_ddi_translations_fdi); i++) {
+ for (i = 0, reg = DDI_BUF_TRANS(port);
+ i < ARRAY_SIZE(hsw_ddi_translations_fdi); i++) {
I915_WRITE(reg, ddi_translations[i]);
reg += 4;
}
@@ -118,14 +110,8 @@ void intel_prepare_ddi(struct drm_device *dev)
if (!HAS_DDI(dev))
return;
- for (port = PORT_A; port < PORT_E; port++)
- intel_prepare_ddi_buffers(dev, port, false);
-
- /* DDI E is the suggested one to work in FDI mode, so program is as such
- * by default. It will have to be re-programmed in case a digital DP
- * output will be detected on it
- */
- intel_prepare_ddi_buffers(dev, PORT_E, true);
+ for (port = PORT_A; port <= PORT_E; port++)
+ intel_prepare_ddi_buffers(dev, port);
}
static const long hsw_ddi_buf_ctl_values[] = {
@@ -281,43 +267,40 @@ void hsw_fdi_link_train(struct drm_crtc *crtc)
DRM_ERROR("FDI link training failed!\n");
}
-static void intel_ddi_mode_set(struct drm_encoder *encoder,
- struct drm_display_mode *mode,
- struct drm_display_mode *adjusted_mode)
+static void intel_ddi_mode_set(struct intel_encoder *encoder)
{
- struct drm_crtc *crtc = encoder->crtc;
- struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
- struct intel_encoder *intel_encoder = to_intel_encoder(encoder);
- int port = intel_ddi_get_encoder_port(intel_encoder);
- int pipe = intel_crtc->pipe;
- int type = intel_encoder->type;
+ struct intel_crtc *crtc = to_intel_crtc(encoder->base.crtc);
+ int port = intel_ddi_get_encoder_port(encoder);
+ int pipe = crtc->pipe;
+ int type = encoder->type;
+ struct drm_display_mode *adjusted_mode = &crtc->config.adjusted_mode;
DRM_DEBUG_KMS("Preparing DDI mode on port %c, pipe %c\n",
port_name(port), pipe_name(pipe));
- intel_crtc->eld_vld = false;
+ crtc->eld_vld = false;
if (type == INTEL_OUTPUT_DISPLAYPORT || type == INTEL_OUTPUT_EDP) {
- struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
+ struct intel_dp *intel_dp = enc_to_intel_dp(&encoder->base);
struct intel_digital_port *intel_dig_port =
- enc_to_dig_port(encoder);
+ enc_to_dig_port(&encoder->base);
- intel_dp->DP = intel_dig_port->port_reversal |
+ intel_dp->DP = intel_dig_port->saved_port_bits |
DDI_BUF_CTL_ENABLE | DDI_BUF_EMP_400MV_0DB_HSW;
intel_dp->DP |= DDI_PORT_WIDTH(intel_dp->lane_count);
if (intel_dp->has_audio) {
DRM_DEBUG_DRIVER("DP audio on pipe %c on DDI\n",
- pipe_name(intel_crtc->pipe));
+ pipe_name(crtc->pipe));
/* write eld */
DRM_DEBUG_DRIVER("DP audio: write eld information\n");
- intel_write_eld(encoder, adjusted_mode);
+ intel_write_eld(&encoder->base, adjusted_mode);
}
intel_dp_init_link_config(intel_dp);
} else if (type == INTEL_OUTPUT_HDMI) {
- struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(encoder);
+ struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(&encoder->base);
if (intel_hdmi->has_audio) {
/* Proper support for digital audio needs a new logic
@@ -325,14 +308,14 @@ static void intel_ddi_mode_set(struct drm_encoder *encoder,
* patch bombing.
*/
DRM_DEBUG_DRIVER("HDMI audio on pipe %c on DDI\n",
- pipe_name(intel_crtc->pipe));
+ pipe_name(crtc->pipe));
/* write eld */
DRM_DEBUG_DRIVER("HDMI audio: write eld information\n");
- intel_write_eld(encoder, adjusted_mode);
+ intel_write_eld(&encoder->base, adjusted_mode);
}
- intel_hdmi->set_infoframes(encoder, adjusted_mode);
+ intel_hdmi->set_infoframes(&encoder->base, adjusted_mode);
}
}
@@ -1109,7 +1092,8 @@ static void intel_enable_ddi(struct intel_encoder *intel_encoder)
* enabling the port.
*/
I915_WRITE(DDI_BUF_CTL(port),
- intel_dig_port->port_reversal | DDI_BUF_CTL_ENABLE);
+ intel_dig_port->saved_port_bits |
+ DDI_BUF_CTL_ENABLE);
} else if (type == INTEL_OUTPUT_EDP) {
struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
@@ -1117,6 +1101,7 @@ static void intel_enable_ddi(struct intel_encoder *intel_encoder)
intel_dp_stop_link_train(intel_dp);
ironlake_edp_backlight_on(intel_dp);
+ intel_edp_psr_enable(intel_dp);
}
if (intel_crtc->eld_vld && type != INTEL_OUTPUT_EDP) {
@@ -1147,16 +1132,20 @@ static void intel_disable_ddi(struct intel_encoder *intel_encoder)
if (type == INTEL_OUTPUT_EDP) {
struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
+ intel_edp_psr_disable(intel_dp);
ironlake_edp_backlight_off(intel_dp);
}
}
int intel_ddi_get_cdclk_freq(struct drm_i915_private *dev_priv)
{
- if (I915_READ(HSW_FUSE_STRAP) & HSW_CDCLK_LIMIT)
+ uint32_t lcpll = I915_READ(LCPLL_CTL);
+
+ if (lcpll & LCPLL_CD_SOURCE_FCLK)
+ return 800000;
+ else if (I915_READ(HSW_FUSE_STRAP) & HSW_CDCLK_LIMIT)
return 450000;
- else if ((I915_READ(LCPLL_CTL) & LCPLL_CLK_FREQ_MASK) ==
- LCPLL_CLK_FREQ_450)
+ else if ((lcpll & LCPLL_CLK_FREQ_MASK) == LCPLL_CLK_FREQ_450)
return 450000;
else if (IS_ULT(dev_priv->dev))
return 337500;
@@ -1308,10 +1297,6 @@ static const struct drm_encoder_funcs intel_ddi_funcs = {
.destroy = intel_ddi_destroy,
};
-static const struct drm_encoder_helper_funcs intel_ddi_helper_funcs = {
- .mode_set = intel_ddi_mode_set,
-};
-
void intel_ddi_init(struct drm_device *dev, enum port port)
{
struct drm_i915_private *dev_priv = dev->dev_private;
@@ -1336,9 +1321,9 @@ void intel_ddi_init(struct drm_device *dev, enum port port)
drm_encoder_init(dev, encoder, &intel_ddi_funcs,
DRM_MODE_ENCODER_TMDS);
- drm_encoder_helper_add(encoder, &intel_ddi_helper_funcs);
intel_encoder->compute_config = intel_ddi_compute_config;
+ intel_encoder->mode_set = intel_ddi_mode_set;
intel_encoder->enable = intel_enable_ddi;
intel_encoder->pre_enable = intel_ddi_pre_enable;
intel_encoder->disable = intel_disable_ddi;
@@ -1347,8 +1332,9 @@ void intel_ddi_init(struct drm_device *dev, enum port port)
intel_encoder->get_config = intel_ddi_get_config;
intel_dig_port->port = port;
- intel_dig_port->port_reversal = I915_READ(DDI_BUF_CTL(port)) &
- DDI_BUF_PORT_REVERSAL;
+ intel_dig_port->saved_port_bits = I915_READ(DDI_BUF_CTL(port)) &
+ (DDI_BUF_PORT_REVERSAL |
+ DDI_A_4_LANES);
intel_dig_port->dp.output_reg = DDI_BUF_CTL(port);
intel_encoder->type = INTEL_OUTPUT_UNKNOWN;
generated by cgit v1.2.3 (git 2.39.0) at 2024-07-13 04:10:39 +0300