From ab55165d73a444606af1530cd0d6448b04370f68 Mon Sep 17 00:00:00 2001 From: Jani Nikula Date: Tue, 16 Aug 2022 18:37:21 +0300 Subject: drm/i915/dsi: fix dual-link DSI backlight and CABC ports for display 11+ The VBT dual-link DSI backlight and CABC still use ports A and C, both in Bspec and code, while display 11+ DSI only supports ports A and B. Assume port C actually means port B for display 11+ when parsing VBT. Bspec: 20154 Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/6476 Cc: stable@vger.kernel.org Signed-off-by: Jani Nikula Reviewed-by: Stanislav Lisovskiy Link: https://patchwork.freedesktop.org/patch/msgid/8c462718bcc7b36a83e09d0a5eef058b6bc8b1a2.1660664162.git.jani.nikula@intel.com --- drivers/gpu/drm/i915/display/intel_bios.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) (limited to 'drivers/gpu/drm/i915/display/intel_bios.c') diff --git a/drivers/gpu/drm/i915/display/intel_bios.c b/drivers/gpu/drm/i915/display/intel_bios.c index 51dde5bfd956..198a2f4920cc 100644 --- a/drivers/gpu/drm/i915/display/intel_bios.c +++ b/drivers/gpu/drm/i915/display/intel_bios.c @@ -1596,6 +1596,8 @@ static void parse_dsi_backlight_ports(struct drm_i915_private *i915, struct intel_panel *panel, enum port port) { + enum port port_bc = DISPLAY_VER(i915) >= 11 ? PORT_B : PORT_C; + if (!panel->vbt.dsi.config->dual_link || i915->vbt.version < 197) { panel->vbt.dsi.bl_ports = BIT(port); if (panel->vbt.dsi.config->cabc_supported) @@ -1609,11 +1611,11 @@ static void parse_dsi_backlight_ports(struct drm_i915_private *i915, panel->vbt.dsi.bl_ports = BIT(PORT_A); break; case DL_DCS_PORT_C: - panel->vbt.dsi.bl_ports = BIT(PORT_C); + panel->vbt.dsi.bl_ports = BIT(port_bc); break; default: case DL_DCS_PORT_A_AND_C: - panel->vbt.dsi.bl_ports = BIT(PORT_A) | BIT(PORT_C); + panel->vbt.dsi.bl_ports = BIT(PORT_A) | BIT(port_bc); break; } @@ -1625,12 +1627,12 @@ static void parse_dsi_backlight_ports(struct drm_i915_private *i915, panel->vbt.dsi.cabc_ports = BIT(PORT_A); break; case DL_DCS_PORT_C: - panel->vbt.dsi.cabc_ports = BIT(PORT_C); + panel->vbt.dsi.cabc_ports = BIT(port_bc); break; default: case DL_DCS_PORT_A_AND_C: panel->vbt.dsi.cabc_ports = - BIT(PORT_A) | BIT(PORT_C); + BIT(PORT_A) | BIT(port_bc); break; } } -- cgit v1.2.3 From 612dc414458ff439d90a6c491fa5d064a6412713 Mon Sep 17 00:00:00 2001 From: Imre Deak Date: Thu, 18 Aug 2022 16:41:49 -0700 Subject: drm/i915/mtl: Add VBT port and AUX_CH mapping Add the proper VBT port,AUX_CH -> i915 port,AUX_CH mapping which just follows the ADL_P one. Reviewed-by: Matt Roper Signed-off-by: Imre Deak Signed-off-by: Radhakrishna Sripada Link: https://patchwork.freedesktop.org/patch/msgid/20220818234202.451742-9-radhakrishna.sripada@intel.com --- drivers/gpu/drm/i915/display/intel_bios.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) (limited to 'drivers/gpu/drm/i915/display/intel_bios.c') diff --git a/drivers/gpu/drm/i915/display/intel_bios.c b/drivers/gpu/drm/i915/display/intel_bios.c index 198a2f4920cc..81d6cfbd2615 100644 --- a/drivers/gpu/drm/i915/display/intel_bios.c +++ b/drivers/gpu/drm/i915/display/intel_bios.c @@ -2420,7 +2420,7 @@ static enum port dvo_port_to_port(struct drm_i915_private *i915, [PORT_TC4] = { DVO_PORT_HDMII, DVO_PORT_DPI, -1 }, }; - if (DISPLAY_VER(i915) == 13) + if (DISPLAY_VER(i915) >= 13) return __dvo_port_to_port(ARRAY_SIZE(xelpd_port_mapping), ARRAY_SIZE(xelpd_port_mapping[0]), xelpd_port_mapping, @@ -3578,7 +3578,7 @@ enum aux_ch intel_bios_port_aux_ch(struct drm_i915_private *i915, aux_ch = AUX_CH_C; break; case DP_AUX_D: - if (DISPLAY_VER(i915) == 13) + if (DISPLAY_VER(i915) >= 13) aux_ch = AUX_CH_D_XELPD; else if (IS_ALDERLAKE_S(i915)) aux_ch = AUX_CH_USBC3; @@ -3588,7 +3588,7 @@ enum aux_ch intel_bios_port_aux_ch(struct drm_i915_private *i915, aux_ch = AUX_CH_D; break; case DP_AUX_E: - if (DISPLAY_VER(i915) == 13) + if (DISPLAY_VER(i915) >= 13) aux_ch = AUX_CH_E_XELPD; else if (IS_ALDERLAKE_S(i915)) aux_ch = AUX_CH_USBC4; @@ -3596,25 +3596,25 @@ enum aux_ch intel_bios_port_aux_ch(struct drm_i915_private *i915, aux_ch = AUX_CH_E; break; case DP_AUX_F: - if (DISPLAY_VER(i915) == 13) + if (DISPLAY_VER(i915) >= 13) aux_ch = AUX_CH_USBC1; else aux_ch = AUX_CH_F; break; case DP_AUX_G: - if (DISPLAY_VER(i915) == 13) + if (DISPLAY_VER(i915) >= 13) aux_ch = AUX_CH_USBC2; else aux_ch = AUX_CH_G; break; case DP_AUX_H: - if (DISPLAY_VER(i915) == 13) + if (DISPLAY_VER(i915) >= 13) aux_ch = AUX_CH_USBC3; else aux_ch = AUX_CH_H; break; case DP_AUX_I: - if (DISPLAY_VER(i915) == 13) + if (DISPLAY_VER(i915) >= 13) aux_ch = AUX_CH_USBC4; else aux_ch = AUX_CH_I; -- cgit v1.2.3