[Intel-gfx] [BXT MIPI PATCH v5 05/14] drm/i915/bxt: DSI encoder support in CRTC modeset
Uma Shankar
uma.shankar at intel.com
Wed Sep 30 10:03:38 PDT 2015
From: Shashank Sharma <shashank.sharma at intel.com>
SKL and BXT qualifies the HAS_DDI() check, and hence haswell
modeset functions are re-used for modeset sequence. But DDI
interface doesn't include support for DSI.
This patch adds:
1. cases for DSI encoder, in those modeset functions and allows
a CRTC modeset
2. Adds call to pre_pll enabled from CRTC modeset function. Nothing
needs to be done as such in CRTC for DSI encoder, as PLL, clock
and and transcoder programming will be taken care in encoder's
pre_enable and pre_pll_enable function.
v2: Fixed Jani's review comments. Added INVALID_PORT for non DDI
encoder like DSI for platforms having HAS_DDI as true.
v3: Rebased on latest drm-nightly branch. Added a WARN_ON for invalid
encoder.
v4: WARN_ON for invalid encoder is refactored as per Jani's suggestion.
Fixed the sequence for pre_pll_enable.
v5: Protected DDI code paths in case of DSI encoder calls.
Signed-off-by: Shashank Sharma <shashank.sharma at intel.com>
Signed-off-by: Uma Shankar <uma.shankar at intel.com>
---
drivers/gpu/drm/i915/i915_drv.h | 1 +
drivers/gpu/drm/i915/intel_ddi.c | 83 ++++++++++++++++++++++++++++-----
drivers/gpu/drm/i915/intel_display.c | 21 ++++++---
drivers/gpu/drm/i915/intel_dp_mst.c | 8 +++-
drivers/gpu/drm/i915/intel_opregion.c | 9 +++-
5 files changed, 101 insertions(+), 21 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index fd1de45..f97a2a2 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -2482,6 +2482,7 @@ struct drm_i915_cmd_table {
INTEL_INFO(dev)->gen >= 9)
#define HAS_DDI(dev) (INTEL_INFO(dev)->has_ddi)
+#define has_encoder_ddi(type) ((type) == (INTEL_OUTPUT_DSI) ? 0 : 1)
#define HAS_FPGA_DBG_UNCLAIMED(dev) (INTEL_INFO(dev)->has_fpga_dbg)
#define HAS_PSR(dev) (IS_HASWELL(dev) || IS_BROADWELL(dev) || \
IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev) || \
diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index cacb07b..4abc13d 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -390,8 +390,10 @@ void intel_prepare_ddi(struct drm_device *dev)
enum port port;
bool supports_hdmi;
- ddi_get_encoder_port(intel_encoder, &intel_dig_port, &port);
+ if (intel_encoder->type == INTEL_OUTPUT_DSI)
+ continue;
+ ddi_get_encoder_port(intel_encoder, &intel_dig_port, &port);
if (visited[port])
continue;
@@ -977,8 +979,16 @@ static void bxt_ddi_clock_get(struct intel_encoder *encoder,
struct intel_crtc_state *pipe_config)
{
struct drm_i915_private *dev_priv = encoder->base.dev->dev_private;
- enum port port = intel_ddi_get_encoder_port(encoder);
- uint32_t dpll = port;
+ enum port port;
+ uint32_t dpll;
+
+ if (!has_encoder_ddi(encoder->type)) {
+ DRM_DEBUG_KMS("DDI func getting called for DSI?\n");
+ return;
+ }
+
+ port = intel_ddi_get_encoder_port(encoder);
+ dpll = port;
pipe_config->port_clock =
bxt_calc_pll_link(dev_priv, dpll);
@@ -1568,10 +1578,16 @@ void intel_ddi_enable_transcoder_func(struct drm_crtc *crtc)
struct drm_i915_private *dev_priv = dev->dev_private;
enum pipe pipe = intel_crtc->pipe;
enum transcoder cpu_transcoder = intel_crtc->config->cpu_transcoder;
- enum port port = intel_ddi_get_encoder_port(intel_encoder);
+ enum port port;
int type = intel_encoder->type;
uint32_t temp;
+ if (!has_encoder_ddi(type)) {
+ DRM_DEBUG_KMS("DDI func getting called for DSI?\n");
+ return;
+ }
+
+ port = intel_ddi_get_encoder_port(intel_encoder);
/* Enable TRANS_DDI_FUNC_CTL for the pipe to work in HDMI mode */
temp = TRANS_DDI_FUNC_ENABLE;
temp |= TRANS_DDI_SELECT_PORT(port);
@@ -1678,12 +1694,18 @@ bool intel_ddi_connector_get_hw_state(struct intel_connector *intel_connector)
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_encoder *intel_encoder = intel_connector->encoder;
int type = intel_connector->base.connector_type;
- enum port port = intel_ddi_get_encoder_port(intel_encoder);
+ enum port port;
enum pipe pipe = 0;
enum transcoder cpu_transcoder;
enum intel_display_power_domain power_domain;
uint32_t tmp;
+ if (!has_encoder_ddi(type)) {
+ DRM_DEBUG_KMS("DDI func getting called for DSI?\n");
+ return false;
+ }
+
+ port = intel_ddi_get_encoder_port(intel_encoder);
power_domain = intel_display_port_power_domain(intel_encoder);
if (!intel_display_power_is_enabled(dev_priv, power_domain))
return false;
@@ -1725,11 +1747,17 @@ bool intel_ddi_get_hw_state(struct intel_encoder *encoder,
{
struct drm_device *dev = encoder->base.dev;
struct drm_i915_private *dev_priv = dev->dev_private;
- enum port port = intel_ddi_get_encoder_port(encoder);
+ enum port port;
enum intel_display_power_domain power_domain;
u32 tmp;
int i;
+ if (!has_encoder_ddi(encoder->type)) {
+ DRM_DEBUG_KMS("DDI func getting called for DSI?\n");
+ return false;
+ }
+
+ port = intel_ddi_get_encoder_port(encoder);
power_domain = intel_display_port_power_domain(encoder);
if (!intel_display_power_is_enabled(dev_priv, power_domain))
return false;
@@ -1779,11 +1807,18 @@ bool intel_ddi_get_hw_state(struct intel_encoder *encoder,
void intel_ddi_enable_pipe_clock(struct intel_crtc *intel_crtc)
{
struct drm_crtc *crtc = &intel_crtc->base;
- struct drm_i915_private *dev_priv = crtc->dev->dev_private;
+ struct drm_device *dev = crtc->dev;
+ struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_encoder *intel_encoder = intel_ddi_get_crtc_encoder(crtc);
- enum port port = intel_ddi_get_encoder_port(intel_encoder);
+ enum port port;
enum transcoder cpu_transcoder = intel_crtc->config->cpu_transcoder;
+ if (!has_encoder_ddi(intel_encoder->type)) {
+ DRM_DEBUG_KMS("DDI func getting called for DSI?\n");
+ return;
+ }
+
+ port = intel_ddi_get_encoder_port(intel_encoder);
if (cpu_transcoder != TRANSCODER_EDP)
I915_WRITE(TRANS_CLK_SEL(cpu_transcoder),
TRANS_CLK_SEL_PORT(port));
@@ -1866,10 +1901,16 @@ static void intel_ddi_pre_enable(struct intel_encoder *intel_encoder)
struct drm_device *dev = encoder->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_crtc *crtc = to_intel_crtc(encoder->crtc);
- enum port port = intel_ddi_get_encoder_port(intel_encoder);
+ enum port port;
int type = intel_encoder->type;
int hdmi_level;
+ if (!has_encoder_ddi(type)) {
+ DRM_DEBUG_KMS("DDI func getting called for DSI?\n");
+ return;
+ }
+
+ port = intel_ddi_get_encoder_port(intel_encoder);
if (type == INTEL_OUTPUT_EDP) {
struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
intel_edp_panel_on(intel_dp);
@@ -1942,11 +1983,17 @@ static void intel_ddi_post_disable(struct intel_encoder *intel_encoder)
struct drm_encoder *encoder = &intel_encoder->base;
struct drm_device *dev = encoder->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
- enum port port = intel_ddi_get_encoder_port(intel_encoder);
+ enum port port;
int type = intel_encoder->type;
uint32_t val;
bool wait = false;
+ if (!has_encoder_ddi(type)) {
+ DRM_DEBUG_KMS("DDI func getting called for DSI?\n");
+ return;
+ }
+
+ port = intel_ddi_get_encoder_port(intel_encoder);
val = I915_READ(DDI_BUF_CTL(port));
if (val & DDI_BUF_CTL_ENABLE) {
val &= ~DDI_BUF_CTL_ENABLE;
@@ -1983,9 +2030,15 @@ static void intel_enable_ddi(struct intel_encoder *intel_encoder)
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
struct drm_device *dev = encoder->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
- enum port port = intel_ddi_get_encoder_port(intel_encoder);
+ enum port port;
int type = intel_encoder->type;
+ if (!has_encoder_ddi(type)) {
+ DRM_DEBUG_KMS("DDI func getting called for DSI?\n");
+ return;
+ }
+
+ port = intel_ddi_get_encoder_port(intel_encoder);
if (type == INTEL_OUTPUT_HDMI) {
struct intel_digital_port *intel_dig_port =
enc_to_dig_port(encoder);
@@ -2729,8 +2782,14 @@ static bool intel_ddi_compute_config(struct intel_encoder *encoder,
struct intel_crtc_state *pipe_config)
{
int type = encoder->type;
- int port = intel_ddi_get_encoder_port(encoder);
+ int port;
+
+ if (!has_encoder_ddi(type)) {
+ DRM_DEBUG_KMS("DDI func getting called for DSI?\n");
+ return false;
+ }
+ port = intel_ddi_get_encoder_port(encoder);
WARN(type == INTEL_OUTPUT_UNKNOWN, "compute_config() on unknown output!\n");
if (port == PORT_A)
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index b8e0310..ea0f533 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -4991,6 +4991,7 @@ static void haswell_crtc_enable(struct drm_crtc *crtc)
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
struct intel_encoder *encoder;
+ bool is_dsi = intel_pipe_has_type(intel_crtc, INTEL_OUTPUT_DSI);
int pipe = intel_crtc->pipe;
WARN_ON(!crtc->state->enable);
@@ -5023,9 +5024,12 @@ static void haswell_crtc_enable(struct drm_crtc *crtc)
intel_crtc->active = true;
intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true);
- for_each_encoder_on_crtc(dev, crtc, encoder)
+ for_each_encoder_on_crtc(dev, crtc, encoder) {
+ if (encoder->pre_pll_enable)
+ encoder->pre_pll_enable(encoder);
if (encoder->pre_enable)
encoder->pre_enable(encoder);
+ }
if (intel_crtc->config->has_pch_encoder) {
intel_set_pch_fifo_underrun_reporting(dev_priv, TRANSCODER_A,
@@ -5033,7 +5037,8 @@ static void haswell_crtc_enable(struct drm_crtc *crtc)
dev_priv->display.fdi_link_train(crtc);
}
- intel_ddi_enable_pipe_clock(intel_crtc);
+ if (!is_dsi)
+ intel_ddi_enable_pipe_clock(intel_crtc);
if (INTEL_INFO(dev)->gen == 9)
skylake_pfit_update(intel_crtc, 1);
@@ -5049,7 +5054,8 @@ static void haswell_crtc_enable(struct drm_crtc *crtc)
intel_crtc_load_lut(crtc);
intel_ddi_set_pipe_settings(crtc);
- intel_ddi_enable_transcoder_func(crtc);
+ if (!is_dsi)
+ intel_ddi_enable_transcoder_func(crtc);
intel_update_watermarks(crtc);
intel_enable_pipe(intel_crtc);
@@ -5057,7 +5063,7 @@ static void haswell_crtc_enable(struct drm_crtc *crtc)
if (intel_crtc->config->has_pch_encoder)
lpt_pch_enable(crtc);
- if (intel_crtc->config->dp_encoder_is_mst)
+ if (intel_crtc->config->dp_encoder_is_mst && !is_dsi)
intel_ddi_set_vc_payload_alloc(crtc, true);
assert_vblank_disabled(crtc);
@@ -5159,6 +5165,7 @@ static void haswell_crtc_disable(struct drm_crtc *crtc)
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
struct intel_encoder *encoder;
enum transcoder cpu_transcoder = intel_crtc->config->cpu_transcoder;
+ bool is_dsi = intel_pipe_has_type(intel_crtc, INTEL_OUTPUT_DSI);
if (!intel_crtc->active)
return;
@@ -5179,7 +5186,8 @@ static void haswell_crtc_disable(struct drm_crtc *crtc)
if (intel_crtc->config->dp_encoder_is_mst)
intel_ddi_set_vc_payload_alloc(crtc, false);
- intel_ddi_disable_transcoder_func(dev_priv, cpu_transcoder);
+ if (!is_dsi)
+ intel_ddi_disable_transcoder_func(dev_priv, cpu_transcoder);
if (INTEL_INFO(dev)->gen == 9)
skylake_pfit_update(intel_crtc, 0);
@@ -5188,7 +5196,8 @@ static void haswell_crtc_disable(struct drm_crtc *crtc)
else
MISSING_CASE(INTEL_INFO(dev)->gen);
- intel_ddi_disable_pipe_clock(intel_crtc);
+ if (!is_dsi)
+ intel_ddi_disable_pipe_clock(intel_crtc);
if (intel_crtc->config->has_pch_encoder) {
lpt_disable_pch_transcoder(dev_priv);
diff --git a/drivers/gpu/drm/i915/intel_dp_mst.c b/drivers/gpu/drm/i915/intel_dp_mst.c
index 600afdb..00327bc 100644
--- a/drivers/gpu/drm/i915/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/intel_dp_mst.c
@@ -172,8 +172,14 @@ static void intel_mst_pre_enable_dp(struct intel_encoder *encoder)
intel_mst->port = found->port;
if (intel_dp->active_mst_links == 0) {
- enum port port = intel_ddi_get_encoder_port(encoder);
+ enum port port;
+ if (!has_encoder_ddi(encoder->type)) {
+ DRM_DEBUG_KMS("DDI func getting called for DSI?\n");
+ return;
+ }
+
+ port = intel_ddi_get_encoder_port(encoder);
/* FIXME: add support for SKL */
if (INTEL_INFO(dev)->gen < 9)
I915_WRITE(PORT_CLK_SEL(port),
diff --git a/drivers/gpu/drm/i915/intel_opregion.c b/drivers/gpu/drm/i915/intel_opregion.c
index 4813374..64b8bcd 100644
--- a/drivers/gpu/drm/i915/intel_opregion.c
+++ b/drivers/gpu/drm/i915/intel_opregion.c
@@ -334,8 +334,12 @@ int intel_opregion_notify_encoder(struct intel_encoder *intel_encoder,
if (!HAS_DDI(dev))
return 0;
- port = intel_ddi_get_encoder_port(intel_encoder);
- if (port == PORT_E) {
+ if (!has_encoder_ddi(type))
+ port = 0;
+ else
+ port = intel_ddi_get_encoder_port(intel_encoder);
+
+ if (port == PORT_E) {
port = 0;
} else {
parm |= 1 << port;
@@ -356,6 +360,7 @@ int intel_opregion_notify_encoder(struct intel_encoder *intel_encoder,
type = DISPLAY_TYPE_EXTERNAL_FLAT_PANEL;
break;
case INTEL_OUTPUT_EDP:
+ case INTEL_OUTPUT_DSI:
type = DISPLAY_TYPE_INTERNAL_FLAT_PANEL;
break;
default:
--
1.7.9.5
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