From: Duncan Ma <[email protected]>

[Why & How]
Display idle notification shall
be sent by driver on D3 entry. Implement
notification to DMUB and PMFW.

Reviewed-by: Duncan Ma <[email protected]>
Signed-off-by: Duncan Ma <[email protected]>
Signed-off-by: Ivan Lipski <[email protected]>
---
 drivers/gpu/drm/amd/display/dc/core/dc.c | 9 +++++++++
 drivers/gpu/drm/amd/display/dc/dc.h      | 1 +
 2 files changed, 10 insertions(+)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c 
b/drivers/gpu/drm/amd/display/dc/core/dc.c
index cee45fe7cec9..c31f7f8e409f 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -5547,6 +5547,15 @@ void dc_set_power_state(struct dc *dc, enum 
dc_acpi_cm_power_state power_state)
                        dc->hwss.init_sys_ctx(dc->hwseq, dc, &dc->vm_pa_config);
                }
                break;
+       case DC_ACPI_CM_POWER_STATE_D3:
+               if (dc->caps.ips_support)
+                       dc_dmub_srv_notify_fw_dc_power_state(dc->ctx->dmub_srv, 
DC_ACPI_CM_POWER_STATE_D3);
+
+               if (dc->caps.ips_v2_support) {
+                       if (dc->clk_mgr->funcs->set_low_power_state)
+                               
dc->clk_mgr->funcs->set_low_power_state(dc->clk_mgr);
+               }
+               break;
        default:
                ASSERT(dc->current_state->stream_count == 0);
                dc_dmub_srv_notify_fw_dc_power_state(dc->ctx->dmub_srv, 
power_state);
diff --git a/drivers/gpu/drm/amd/display/dc/dc.h 
b/drivers/gpu/drm/amd/display/dc/dc.h
index a160671d2a01..aa1b976cf40d 100644
--- a/drivers/gpu/drm/amd/display/dc/dc.h
+++ b/drivers/gpu/drm/amd/display/dc/dc.h
@@ -311,6 +311,7 @@ struct dc_caps {
        bool dmcub_support;
        bool zstate_support;
        bool ips_support;
+       bool ips_v2_support;
        uint32_t num_of_internal_disp;
        enum dp_protocol_version max_dp_protocol_version;
        unsigned int mall_size_per_mem_channel;
-- 
2.43.0

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