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drm/i915/dsb: Add pipedmc dc balance enable/disable

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Add function to control DC balance enable/disable bit via DSB.

--v2:
Remove redundant forward declaration.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Mitul Golani <mitulkumar.ajitkumar.golani@intel.com>
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Link: https://patch.msgid.link/20251223104542.2688548-16-mitulkumar.ajitkumar.golani@intel.com
This commit is contained in:
Ville Syrjälä 2025-12-23 16:15:37 +05:30 committed by Ankit Nautiyal
parent c4aba65c26
commit 27a4250ca2
2 changed files with 20 additions and 0 deletions
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17
drivers/gpu/drm/i915/display/intel_dmc.c
View File

@ -1755,3 +1755,20 @@ u32 intel_pipedmc_start_mmioaddr(struct intel_crtc *crtc)
return dmc ? dmc->dmc_info[dmc_id].start_mmioaddr : 0;
}
void intel_pipedmc_dcb_enable(struct intel_dsb *dsb, struct intel_crtc *crtc)
{
struct intel_display *display = to_intel_display(crtc);
enum pipe pipe = crtc->pipe;
intel_de_write_dsb(display, dsb, PIPEDMC_DCB_CTL(pipe),
PIPEDMC_ADAPTIVE_DCB_ENABLE);
}
void intel_pipedmc_dcb_disable(struct intel_dsb *dsb, struct intel_crtc *crtc)
{
struct intel_display *display = to_intel_display(crtc);
enum pipe pipe = crtc->pipe;
intel_de_write_dsb(display, dsb, PIPEDMC_DCB_CTL(pipe), 0);
}

3
drivers/gpu/drm/i915/display/intel_dmc.h
View File

@ -15,6 +15,7 @@ struct intel_crtc;
struct intel_crtc_state;
struct intel_display;
struct intel_dmc_snapshot;
struct intel_dsb;
void intel_dmc_init(struct intel_display *display);
void intel_dmc_load_program(struct intel_display *display);
@ -39,6 +40,8 @@ void intel_dmc_update_dc6_allowed_count(struct intel_display *display, bool star
void assert_main_dmc_loaded(struct intel_display *display);
void intel_pipedmc_irq_handler(struct intel_display *display, enum pipe pipe);
void intel_pipedmc_dcb_enable(struct intel_dsb *dsb, struct intel_crtc *crtc);
void intel_pipedmc_dcb_disable(struct intel_dsb *dsb, struct intel_crtc *crtc);
u32 intel_pipedmc_start_mmioaddr(struct intel_crtc *crtc);
void intel_pipedmc_enable_event(struct intel_crtc *crtc,