[PATCH 19/47] drm/amd/display: Refactor edp panel power sequencer(PPS) codes
Wayne Lin
Wayne.Lin at amd.com
Wed Sep 14 03:24:13 UTC 2022
From: Ian Chen <ian.chen at amd.com>
[Why & How]
Move extra panel power sequencer settings into panel_cofig struct.
Reviewed-by: Anthony Koo <Anthony.Koo at amd.com>
Acked-by: Wayne Lin <wayne.lin at amd.com>
Signed-off-by: Ian Chen <ian.chen at amd.com>
---
.../amd/display/amdgpu_dm/amdgpu_dm_helpers.c | 11 +++++++-
drivers/gpu/drm/amd/display/dc/core/dc_link.c | 8 +++---
.../gpu/drm/amd/display/dc/core/dc_link_dp.c | 10 +++-----
drivers/gpu/drm/amd/display/dc/dc_link.h | 10 ++++++++
.../display/dc/dce110/dce110_hw_sequencer.c | 25 +++++++++++--------
drivers/gpu/drm/amd/display/dc/dm_helpers.h | 3 ++-
6 files changed, 46 insertions(+), 21 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c
index 0b7440b92c10..4956a0118215 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c
@@ -918,8 +918,17 @@ void dm_helpers_smu_timeout(struct dc_context *ctx, unsigned int msg_id, unsigne
void dm_helpers_init_panel_settings(
struct dc_context *ctx,
- struct dc_panel_config *panel_config)
+ struct dc_panel_config *panel_config,
+ struct dc_sink *sink)
{
+ // Extra Panel Power Sequence
+ panel_config->pps.extra_t3_ms = sink->edid_caps.panel_patch.extra_t3_ms;
+ panel_config->pps.extra_t7_ms = sink->edid_caps.panel_patch.extra_t7_ms;
+ panel_config->pps.extra_delay_backlight_off = sink->edid_caps.panel_patch.extra_delay_backlight_off;
+ panel_config->pps.extra_post_t7_ms = 0;
+ panel_config->pps.extra_pre_t11_ms = 0;
+ panel_config->pps.extra_t12_ms = sink->edid_caps.panel_patch.extra_t12_ms;
+ panel_config->pps.extra_post_OUI_ms = 0;
// Feature DSC
panel_config->dsc.disable_dsc_edp = false;
panel_config->dsc.force_dsc_edp_policy = 0;
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link.c b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
index 4fb57d4041a0..3529be5888c8 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
@@ -1308,7 +1308,7 @@ static bool detect_link_and_local_sink(struct dc_link *link,
if (link->connector_signal == SIGNAL_TYPE_EDP) {
// Init dc_panel_config
- dm_helpers_init_panel_settings(dc_ctx, &link->panel_config);
+ dm_helpers_init_panel_settings(dc_ctx, &link->panel_config, sink);
// Override dc_panel_config if system has specific settings
dm_helpers_override_panel_settings(dc_ctx, &link->panel_config);
}
@@ -1977,7 +1977,7 @@ static enum dc_status enable_link_dp(struct dc_state *state,
int i;
bool apply_seamless_boot_optimization = false;
uint32_t bl_oled_enable_delay = 50; // in ms
- const uint32_t post_oui_delay = 30; // 30ms
+ uint32_t post_oui_delay = 30; // 30ms
/* Reduce link bandwidth between failed link training attempts. */
bool do_fallback = false;
@@ -2024,8 +2024,10 @@ static enum dc_status enable_link_dp(struct dc_state *state,
// during mode switch we do DP_SET_POWER off then on, and OUI is lost
dpcd_set_source_specific_data(link);
- if (link->dpcd_sink_ext_caps.raw != 0)
+ if (link->dpcd_sink_ext_caps.raw != 0) {
+ post_oui_delay += link->panel_config.pps.extra_post_OUI_ms;
msleep(post_oui_delay);
+ }
// similarly, mode switch can cause loss of cable ID
dpcd_write_cable_id_to_dprx(link);
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
index eea6ec0a76b4..f317e48c2721 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
@@ -7075,9 +7075,8 @@ void dp_enable_link_phy(
void edp_add_delay_for_T9(struct dc_link *link)
{
- if (link->local_sink &&
- link->local_sink->edid_caps.panel_patch.extra_delay_backlight_off > 0)
- udelay(link->local_sink->edid_caps.panel_patch.extra_delay_backlight_off * 1000);
+ if (link && link->panel_config.pps.extra_delay_backlight_off > 0)
+ udelay(link->panel_config.pps.extra_delay_backlight_off * 1000);
}
bool edp_receiver_ready_T9(struct dc_link *link)
@@ -7133,9 +7132,8 @@ bool edp_receiver_ready_T7(struct dc_link *link)
} while (time_taken_in_ns < 50 * 1000000); //MAx T7 is 50ms
}
- if (link->local_sink &&
- link->local_sink->edid_caps.panel_patch.extra_t7_ms > 0)
- udelay(link->local_sink->edid_caps.panel_patch.extra_t7_ms * 1000);
+ if (link && link->panel_config.pps.extra_t7_ms > 0)
+ udelay(link->panel_config.pps.extra_t7_ms * 1000);
return result;
}
diff --git a/drivers/gpu/drm/amd/display/dc/dc_link.h b/drivers/gpu/drm/amd/display/dc/dc_link.h
index 4d9819d9ffb6..d890a03910c7 100644
--- a/drivers/gpu/drm/amd/display/dc/dc_link.h
+++ b/drivers/gpu/drm/amd/display/dc/dc_link.h
@@ -117,6 +117,16 @@ struct psr_settings {
* Add a struct dc_panel_config under dc_link
*/
struct dc_panel_config {
+ // extra panel power sequence parameters
+ struct pps {
+ unsigned int extra_t3_ms;
+ unsigned int extra_t7_ms;
+ unsigned int extra_delay_backlight_off;
+ unsigned int extra_post_t7_ms;
+ unsigned int extra_pre_t11_ms;
+ unsigned int extra_t12_ms;
+ unsigned int extra_post_OUI_ms;
+ } pps;
// edp DSC
struct dsc {
bool disable_dsc_edp;
diff --git a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
index 8ffb13847ae0..70ac0b31baba 100644
--- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
+++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
@@ -722,7 +722,6 @@ void dce110_edp_wait_for_hpd_ready(
struct dc_context *ctx = link->ctx;
struct graphics_object_id connector = link->link_enc->connector;
struct gpio *hpd;
- struct dc_sink *sink = link->local_sink;
bool edp_hpd_high = false;
uint32_t time_elapsed = 0;
uint32_t timeout = power_up ?
@@ -755,9 +754,9 @@ void dce110_edp_wait_for_hpd_ready(
return;
}
- if (sink != NULL) {
- if (sink->edid_caps.panel_patch.extra_t3_ms > 0) {
- int extra_t3_in_ms = sink->edid_caps.panel_patch.extra_t3_ms;
+ if (link != NULL) {
+ if (link->panel_config.pps.extra_t3_ms > 0) {
+ int extra_t3_in_ms = link->panel_config.pps.extra_t3_ms;
msleep(extra_t3_in_ms);
}
@@ -842,7 +841,7 @@ void dce110_edp_power_control(
/* add time defined by a patch, if any (usually patch extra_t12_ms is 0) */
if (link->local_sink != NULL)
remaining_min_edp_poweroff_time_ms +=
- link->local_sink->edid_caps.panel_patch.extra_t12_ms;
+ link->panel_config.pps.extra_t12_ms;
/* Adjust remaining_min_edp_poweroff_time_ms if this is not the first time. */
if (dp_trace_get_edp_poweroff_timestamp(link) != 0) {
@@ -946,7 +945,7 @@ void dce110_edp_wait_for_T12(
current_ts,
dp_trace_get_edp_poweroff_timestamp(link)), 1000000);
- t12_duration += link->local_sink->edid_caps.panel_patch.extra_t12_ms; // Add extra T12
+ t12_duration += link->panel_config.pps.extra_t12_ms; // Add extra T12
if (time_since_edp_poweroff_ms < t12_duration)
msleep(t12_duration - time_since_edp_poweroff_ms);
@@ -965,6 +964,8 @@ void dce110_edp_backlight_control(
struct dc_context *ctx = link->ctx;
struct bp_transmitter_control cntl = { 0 };
uint8_t panel_instance;
+ unsigned int pre_T11_delay = OLED_PRE_T11_DELAY;
+ unsigned int post_T7_delay = OLED_POST_T7_DELAY;
if (dal_graphics_object_id_get_connector_id(link->link_enc->connector)
!= CONNECTOR_ID_EDP) {
@@ -1043,8 +1044,10 @@ void dce110_edp_backlight_control(
link_transmitter_control(ctx->dc_bios, &cntl);
- if (enable && link->dpcd_sink_ext_caps.bits.oled)
- msleep(OLED_POST_T7_DELAY);
+ if (enable && link->dpcd_sink_ext_caps.bits.oled) {
+ post_T7_delay += link->panel_config.pps.extra_post_t7_ms;
+ msleep(post_T7_delay);
+ }
if (link->dpcd_sink_ext_caps.bits.oled ||
link->dpcd_sink_ext_caps.bits.hdr_aux_backlight_control == 1 ||
@@ -1066,8 +1069,10 @@ void dce110_edp_backlight_control(
DC_LOG_DC("edp_receiver_ready_T9 skipped\n");
}
- if (!enable && link->dpcd_sink_ext_caps.bits.oled)
- msleep(OLED_PRE_T11_DELAY);
+ if (!enable && link->dpcd_sink_ext_caps.bits.oled) {
+ pre_T11_delay += link->panel_config.pps.extra_pre_t11_ms;
+ msleep(pre_T11_delay);
+ }
}
void dce110_enable_audio_stream(struct pipe_ctx *pipe_ctx)
diff --git a/drivers/gpu/drm/amd/display/dc/dm_helpers.h b/drivers/gpu/drm/amd/display/dc/dm_helpers.h
index 6e4d3df0454e..6abbed22bb20 100644
--- a/drivers/gpu/drm/amd/display/dc/dm_helpers.h
+++ b/drivers/gpu/drm/amd/display/dc/dm_helpers.h
@@ -173,7 +173,8 @@ void dm_helpers_smu_timeout(struct dc_context *ctx, unsigned int msg_id, unsigne
(result == 0x0)
void dm_helpers_init_panel_settings(
struct dc_context *ctx,
- struct dc_panel_config *config);
+ struct dc_panel_config *config,
+ struct dc_sink *sink);
void dm_helpers_override_panel_settings(
struct dc_context *ctx,
struct dc_panel_config *config);
--
2.37.3
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