From: Suraj Kandpal Date: Mon, 28 Oct 2024 19:30:08 +0000 (-0700) Subject: drm/i915/xe3lpd: Add check to see if edp over type c is allowed X-Git-Tag: v6.13-rc1~122^2~7^2~54 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=75a988f2ce224a03adad260758e9131b8183dc38;p=thirdparty%2Fkernel%2Flinux.git drm/i915/xe3lpd: Add check to see if edp over type c is allowed Read PICA register to see if edp over type C is possible and then add the appropriate tables for it. --v2 -remove bool from intel_encoder have it in runtime_info [Jani] -initialize the bool in runtime_info init [Jani] -dont abbreviate the bool [Jani] --v3 -Remove useless display version check [Jani] -change the warn on condition [Jani] -no need for a different function for edp type c check [Jani] -dont add register in i915_reg [Jani] Bspec: 68846 Signed-off-by: Suraj Kandpal Signed-off-by: Matt Atwood Signed-off-by: Clint Taylor Reviewed-by: Arun R Murthy Acked-by: Jani Nikula Signed-off-by: Matt Roper Link: https://patchwork.freedesktop.org/patch/msgid/20241028193015.3241858-3-clinton.a.taylor@intel.com --- diff --git a/drivers/gpu/drm/i915/display/intel_cx0_phy.c b/drivers/gpu/drm/i915/display/intel_cx0_phy.c index def08a8d4c6bb..740b18bfc22f6 100644 --- a/drivers/gpu/drm/i915/display/intel_cx0_phy.c +++ b/drivers/gpu/drm/i915/display/intel_cx0_phy.c @@ -2265,9 +2265,12 @@ intel_c20_pll_tables_get(struct intel_crtc_state *crtc_state, struct intel_encoder *encoder) { struct drm_i915_private *i915 = to_i915(encoder->base.dev); + struct intel_display *display = to_intel_display(crtc_state); if (intel_crtc_has_dp_encoder(crtc_state)) { if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_EDP)) { + if (DISPLAY_RUNTIME_INFO(display)->edp_typec_support) + return xe3lpd_c20_dp_edp_tables; if (DISPLAY_VER_FULL(i915) == IP_VER(14, 1)) return xe2hpd_c20_edp_tables; } diff --git a/drivers/gpu/drm/i915/display/intel_cx0_phy_regs.h b/drivers/gpu/drm/i915/display/intel_cx0_phy_regs.h index fdce4152a7c95..582d6277d20ce 100644 --- a/drivers/gpu/drm/i915/display/intel_cx0_phy_regs.h +++ b/drivers/gpu/drm/i915/display/intel_cx0_phy_regs.h @@ -365,4 +365,7 @@ #define HDMI_DIV_MASK REG_GENMASK16(2, 0) #define HDMI_DIV(val) REG_FIELD_PREP16(HDMI_DIV_MASK, val) +#define PICA_PHY_CONFIG_CONTROL _MMIO(0x16FE68) +#define EDP_ON_TYPEC REG_BIT(31) + #endif /* __INTEL_CX0_REG_DEFS_H__ */ diff --git a/drivers/gpu/drm/i915/display/intel_display_device.c b/drivers/gpu/drm/i915/display/intel_display_device.c index 1a52b0911407c..9031b85bb0008 100644 --- a/drivers/gpu/drm/i915/display/intel_display_device.c +++ b/drivers/gpu/drm/i915/display/intel_display_device.c @@ -9,6 +9,7 @@ #include "i915_drv.h" #include "i915_reg.h" +#include "intel_cx0_phy_regs.h" #include "intel_de.h" #include "intel_display.h" #include "intel_display_device.h" @@ -1685,6 +1686,10 @@ static void __intel_display_device_info_runtime_init(struct drm_i915_private *i9 } } + if (DISPLAY_VER(i915) >= 30) + display_runtime->edp_typec_support = + intel_de_read(display, PICA_PHY_CONFIG_CONTROL) & EDP_ON_TYPEC; + display_runtime->rawclk_freq = intel_read_rawclk(display); drm_dbg_kms(&i915->drm, "rawclk rate: %d kHz\n", display_runtime->rawclk_freq); diff --git a/drivers/gpu/drm/i915/display/intel_display_device.h b/drivers/gpu/drm/i915/display/intel_display_device.h index 071a36b51f79f..410f8b33a8a1d 100644 --- a/drivers/gpu/drm/i915/display/intel_display_device.h +++ b/drivers/gpu/drm/i915/display/intel_display_device.h @@ -232,6 +232,7 @@ struct intel_display_runtime_info { bool has_hdcp; bool has_dmc; bool has_dsc; + bool edp_typec_support; }; struct intel_display_device_info { diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index 9dd4610c749a8..694491a4c408b 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -6444,10 +6444,11 @@ intel_dp_init_connector(struct intel_digital_port *dig_port, if (_intel_dp_is_port_edp(dev_priv, intel_encoder->devdata, port)) { /* - * Currently we don't support eDP on TypeC ports, although in - * theory it could work on TypeC legacy ports. + * Currently we don't support eDP on TypeC ports for DISPLAY_VER < 30, + * although in theory it could work on TypeC legacy ports. */ - drm_WARN_ON(dev, intel_encoder_is_tc(intel_encoder)); + drm_WARN_ON(dev, intel_encoder_is_tc(intel_encoder) && + DISPLAY_VER(dev_priv) < 30); type = DRM_MODE_CONNECTOR_eDP; intel_encoder->type = INTEL_OUTPUT_EDP;