From: Ville Syrjälä <[email protected]> Add function to control DC balance enable/disable bit via DSB.
Signed-off-by: Ville Syrjälä <[email protected]> Signed-off-by: Mitul Golani <[email protected]> Reviewed-by: Ankit Nautiyal <[email protected]> --- drivers/gpu/drm/i915/display/intel_dmc.c | 17 +++++++++++++++++ drivers/gpu/drm/i915/display/intel_dmc.h | 4 ++++ 2 files changed, 21 insertions(+) diff --git a/drivers/gpu/drm/i915/display/intel_dmc.c b/drivers/gpu/drm/i915/display/intel_dmc.c index a7ba17361d63..13652dd1ed2a 100644 --- a/drivers/gpu/drm/i915/display/intel_dmc.c +++ b/drivers/gpu/drm/i915/display/intel_dmc.c @@ -1478,3 +1478,20 @@ void intel_pipedmc_irq_handler(struct intel_display *display, enum pipe pipe) drm_err(display->drm, "[CRTC:%d:%s]] PIPEDMC interrupt vector 0x%x\n", crtc->base.base.id, crtc->base.name, tmp); } + +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); +} diff --git a/drivers/gpu/drm/i915/display/intel_dmc.h b/drivers/gpu/drm/i915/display/intel_dmc.h index a98e8deff13a..12912e80bbc6 100644 --- a/drivers/gpu/drm/i915/display/intel_dmc.h +++ b/drivers/gpu/drm/i915/display/intel_dmc.h @@ -9,9 +9,11 @@ #include <linux/types.h> enum pipe; +struct intel_crtc; struct drm_printer; 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); @@ -35,5 +37,7 @@ void intel_dmc_update_dc6_allowed_count(struct intel_display *display, bool star void assert_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); #endif /* __INTEL_DMC_H__ */ -- 2.48.1
