From 99037db545b5cca411182b312520d57c2f7a298b Mon Sep 17 00:00:00 2001 From: Imre Deak Date: Fri, 14 Feb 2025 16:19:59 +0200 Subject: [PATCH] drm/i915/ddi: Unify the platform specific functions disabling a port The functions disabling a port for MTL+ and earlier platforms only differ by an extra step on MTL+ (to disable the D2D link) and the point at which the port's idle state is waited for. Combine the two functions accounting for the above differences, removing the duplication. Reviewed-by: Jani Nikula Signed-off-by: Imre Deak Link: https://patchwork.freedesktop.org/patch/msgid/20250214142001.552916-10-imre.deak@intel.com --- drivers/gpu/drm/i915/display/intel_ddi.c | 43 ++++-------------------- 1 file changed, 7 insertions(+), 36 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c index ffb4936e6af9..a96b9b934d70 100644 --- a/drivers/gpu/drm/i915/display/intel_ddi.c +++ b/drivers/gpu/drm/i915/display/intel_ddi.c @@ -3072,58 +3072,29 @@ mtl_ddi_disable_d2d(struct intel_encoder *encoder) port_name(port)); } -static void mtl_disable_ddi_buf(struct intel_encoder *encoder, - const struct intel_crtc_state *crtc_state) +static void intel_disable_ddi_buf(struct intel_encoder *encoder, + const struct intel_crtc_state *crtc_state) { + struct intel_display *display = to_intel_display(encoder); struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); enum port port = encoder->port; - /* 3.b Clear DDI_CTL_DE Enable to 0. */ intel_de_rmw(dev_priv, DDI_BUF_CTL(port), DDI_BUF_CTL_ENABLE, 0); - /* 3.c Poll for PORT_BUF_CTL Idle Status == 1, timeout after 100us */ - intel_wait_ddi_buf_idle(dev_priv, port); + if (DISPLAY_VER(display) >= 14) + intel_wait_ddi_buf_idle(dev_priv, port); - /* 3.d Disable D2D Link */ mtl_ddi_disable_d2d(encoder); - /* 3.e Disable DP_TP_CTL */ if (intel_crtc_has_dp_encoder(crtc_state)) { intel_de_rmw(dev_priv, dp_tp_ctl_reg(encoder, crtc_state), DP_TP_CTL_ENABLE, 0); } -} - -static void disable_ddi_buf(struct intel_encoder *encoder, - const struct intel_crtc_state *crtc_state) -{ - struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); - enum port port = encoder->port; - - intel_de_rmw(dev_priv, DDI_BUF_CTL(port), DDI_BUF_CTL_ENABLE, 0); - - if (intel_crtc_has_dp_encoder(crtc_state)) - intel_de_rmw(dev_priv, dp_tp_ctl_reg(encoder, crtc_state), - DP_TP_CTL_ENABLE, 0); intel_ddi_disable_fec(encoder, crtc_state); - intel_wait_ddi_buf_idle(dev_priv, port); -} - -static void intel_disable_ddi_buf(struct intel_encoder *encoder, - const struct intel_crtc_state *crtc_state) -{ - struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); - - if (DISPLAY_VER(dev_priv) >= 14) { - mtl_disable_ddi_buf(encoder, crtc_state); - - /* 3.f Disable DP_TP_CTL FEC Enable if it is needed */ - intel_ddi_disable_fec(encoder, crtc_state); - } else { - disable_ddi_buf(encoder, crtc_state); - } + if (DISPLAY_VER(display) < 14) + intel_wait_ddi_buf_idle(dev_priv, port); intel_ddi_wait_for_fec_status(encoder, crtc_state, false); } -- 2.25.1