From 021a62a52fd22c23a2d01cfe816739b5fca10d28 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Ville=20Syrj=C3=A4l=C3=A4?= Date: Fri, 30 Jun 2023 18:58:46 +0300 Subject: [PATCH] drm/i915: Try to initialize DDI/ICL+ DSI ports for every VBT child device MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Try to deal with duplicate child devices for the same DDI port by attempting to initialize them in VBT defined order The first on to succeed for a specific DDI port will be the one we use. We'll also get rid of i915->display.vbt.ports[] here as any conflicts will now be handled at encoder registration time rather than during VBT parsing. Note that intel_bios_encoder_data_lookup() still remaims for pre-DDI DP/HDMI ports as those don't (at least yet) use VBT driven initialization. TODO: DSI dual link handling is sketchy at best v2: Leave intel_bios_encoder_port() to the encoder callback (Jani) Cc: Jani Nikula Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20230630155846.29931-7-ville.syrjala@linux.intel.com Reviewed-by: Jani Nikula --- drivers/gpu/drm/i915/display/icl_dsi.c | 9 ++- drivers/gpu/drm/i915/display/icl_dsi.h | 4 +- drivers/gpu/drm/i915/display/intel_bios.c | 47 ++++++++------- drivers/gpu/drm/i915/display/intel_bios.h | 6 ++ drivers/gpu/drm/i915/display/intel_ddi.c | 57 +++++++++++++++---- drivers/gpu/drm/i915/display/intel_ddi.h | 4 +- drivers/gpu/drm/i915/display/intel_display.c | 11 +--- .../gpu/drm/i915/display/intel_display_core.h | 2 - 8 files changed, 93 insertions(+), 47 deletions(-) diff --git a/drivers/gpu/drm/i915/display/icl_dsi.c b/drivers/gpu/drm/i915/display/icl_dsi.c index 59a2a289d9be..f7ebc146f96d 100644 --- a/drivers/gpu/drm/i915/display/icl_dsi.c +++ b/drivers/gpu/drm/i915/display/icl_dsi.c @@ -1933,7 +1933,8 @@ static void icl_dsi_add_properties(struct intel_connector *connector) fixed_mode->vdisplay); } -void icl_dsi_init(struct drm_i915_private *dev_priv) +void icl_dsi_init(struct drm_i915_private *dev_priv, + const struct intel_bios_encoder_data *devdata) { struct intel_dsi *intel_dsi; struct intel_encoder *encoder; @@ -1941,7 +1942,8 @@ void icl_dsi_init(struct drm_i915_private *dev_priv) struct drm_connector *connector; enum port port; - if (!intel_bios_is_dsi_present(dev_priv, &port)) + port = intel_bios_encoder_port(devdata); + if (port == PORT_NONE) return; intel_dsi = kzalloc(sizeof(*intel_dsi), GFP_KERNEL); @@ -1958,6 +1960,8 @@ void icl_dsi_init(struct drm_i915_private *dev_priv) intel_dsi->attached_connector = intel_connector; connector = &intel_connector->base; + encoder->devdata = devdata; + /* register DSI encoder with DRM subsystem */ drm_encoder_init(&dev_priv->drm, &encoder->base, &gen11_dsi_encoder_funcs, DRM_MODE_ENCODER_DSI, "DSI %c", port_name(port)); @@ -1995,7 +1999,6 @@ void icl_dsi_init(struct drm_i915_private *dev_priv) intel_dsi->panel_power_off_time = ktime_get_boottime(); - encoder->devdata = intel_bios_encoder_data_lookup(dev_priv, port); intel_bios_init_panel_late(dev_priv, &intel_connector->panel, encoder->devdata, NULL); mutex_lock(&dev_priv->drm.mode_config.mutex); diff --git a/drivers/gpu/drm/i915/display/icl_dsi.h b/drivers/gpu/drm/i915/display/icl_dsi.h index b4861b56b5b2..43fa7d72eeb1 100644 --- a/drivers/gpu/drm/i915/display/icl_dsi.h +++ b/drivers/gpu/drm/i915/display/icl_dsi.h @@ -7,9 +7,11 @@ #define __ICL_DSI_H__ struct drm_i915_private; +struct intel_bios_encoder_data; struct intel_crtc_state; -void icl_dsi_init(struct drm_i915_private *i915); +void icl_dsi_init(struct drm_i915_private *dev_priv, + const struct intel_bios_encoder_data *devdata); void icl_dsi_frame_update(struct intel_crtc_state *crtc_state); #endif /* __ICL_DSI_H__ */ diff --git a/drivers/gpu/drm/i915/display/intel_bios.c b/drivers/gpu/drm/i915/display/intel_bios.c index c96bbbe4448e..858c959f7bab 100644 --- a/drivers/gpu/drm/i915/display/intel_bios.c +++ b/drivers/gpu/drm/i915/display/intel_bios.c @@ -2374,7 +2374,7 @@ dsi_dvo_port_to_port(struct drm_i915_private *i915, u8 dvo_port) } } -static enum port intel_bios_encoder_port(const struct intel_bios_encoder_data *devdata) +enum port intel_bios_encoder_port(const struct intel_bios_encoder_data *devdata) { struct drm_i915_private *i915 = devdata->i915; const struct child_device_config *child = &devdata->child; @@ -2497,7 +2497,7 @@ intel_bios_encoder_supports_edp(const struct intel_bios_encoder_data *devdata) devdata->child.device_type & DEVICE_TYPE_INTERNAL_CONNECTOR; } -static bool +bool intel_bios_encoder_supports_dsi(const struct intel_bios_encoder_data *devdata) { return devdata->child.device_type & DEVICE_TYPE_MIPI_OUTPUT; @@ -2556,13 +2556,17 @@ static bool is_port_valid(struct drm_i915_private *i915, enum port port) return true; } -static void print_ddi_port(const struct intel_bios_encoder_data *devdata, - enum port port) +static void print_ddi_port(const struct intel_bios_encoder_data *devdata) { struct drm_i915_private *i915 = devdata->i915; const struct child_device_config *child = &devdata->child; bool is_dvi, is_hdmi, is_dp, is_edp, is_dsi, is_crt, supports_typec_usb, supports_tbt; int dp_boost_level, dp_max_link_rate, hdmi_boost_level, hdmi_level_shift, max_tmds_clock; + enum port port; + + port = intel_bios_encoder_port(devdata); + if (port == PORT_NONE) + return; is_dvi = intel_bios_encoder_supports_dvi(devdata); is_dp = intel_bios_encoder_supports_dp(devdata); @@ -2639,16 +2643,7 @@ static void parse_ddi_port(struct intel_bios_encoder_data *devdata) return; } - if (i915->display.vbt.ports[port]) { - drm_dbg_kms(&i915->drm, - "More than one child device for port %c in VBT, using the first.\n", - port_name(port)); - return; - } - sanitize_device_type(devdata, port); - - i915->display.vbt.ports[port] = devdata; } static bool has_ddi_port_info(struct drm_i915_private *i915) @@ -2659,7 +2654,6 @@ static bool has_ddi_port_info(struct drm_i915_private *i915) static void parse_ddi_ports(struct drm_i915_private *i915) { struct intel_bios_encoder_data *devdata; - enum port port; if (!has_ddi_port_info(i915)) return; @@ -2667,10 +2661,8 @@ static void parse_ddi_ports(struct drm_i915_private *i915) list_for_each_entry(devdata, &i915->display.vbt.display_devices, node) parse_ddi_port(devdata); - for_each_port(port) { - if (i915->display.vbt.ports[port]) - print_ddi_port(i915->display.vbt.ports[port], port); - } + list_for_each_entry(devdata, &i915->display.vbt.display_devices, node) + print_ddi_port(devdata); } static void @@ -3595,5 +3587,22 @@ bool intel_bios_encoder_hpd_invert(const struct intel_bios_encoder_data *devdata const struct intel_bios_encoder_data * intel_bios_encoder_data_lookup(struct drm_i915_private *i915, enum port port) { - return i915->display.vbt.ports[port]; + struct intel_bios_encoder_data *devdata; + + list_for_each_entry(devdata, &i915->display.vbt.display_devices, node) { + if (intel_bios_encoder_port(devdata) == port) + return devdata; + } + + return NULL; +} + +void intel_bios_for_each_encoder(struct drm_i915_private *i915, + void (*func)(struct drm_i915_private *i915, + const struct intel_bios_encoder_data *devdata)) +{ + struct intel_bios_encoder_data *devdata; + + list_for_each_entry(devdata, &i915->display.vbt.display_devices, node) + func(i915, devdata); } diff --git a/drivers/gpu/drm/i915/display/intel_bios.h b/drivers/gpu/drm/i915/display/intel_bios.h index 45fae97d9719..9680e3e92bb5 100644 --- a/drivers/gpu/drm/i915/display/intel_bios.h +++ b/drivers/gpu/drm/i915/display/intel_bios.h @@ -263,10 +263,12 @@ bool intel_bios_encoder_supports_dp(const struct intel_bios_encoder_data *devdat bool intel_bios_encoder_supports_edp(const struct intel_bios_encoder_data *devdata); bool intel_bios_encoder_supports_typec_usb(const struct intel_bios_encoder_data *devdata); bool intel_bios_encoder_supports_tbt(const struct intel_bios_encoder_data *devdata); +bool intel_bios_encoder_supports_dsi(const struct intel_bios_encoder_data *devdata); bool intel_bios_encoder_supports_dp_dual_mode(const struct intel_bios_encoder_data *devdata); bool intel_bios_encoder_is_lspcon(const struct intel_bios_encoder_data *devdata); bool intel_bios_encoder_lane_reversal(const struct intel_bios_encoder_data *devdata); bool intel_bios_encoder_hpd_invert(const struct intel_bios_encoder_data *devdata); +enum port intel_bios_encoder_port(const struct intel_bios_encoder_data *devdata); enum aux_ch intel_bios_dp_aux_ch(const struct intel_bios_encoder_data *devdata); int intel_bios_dp_boost_level(const struct intel_bios_encoder_data *devdata); int intel_bios_dp_max_lane_count(const struct intel_bios_encoder_data *devdata); @@ -276,4 +278,8 @@ int intel_bios_hdmi_ddc_pin(const struct intel_bios_encoder_data *devdata); int intel_bios_hdmi_level_shift(const struct intel_bios_encoder_data *devdata); int intel_bios_hdmi_max_tmds_clock(const struct intel_bios_encoder_data *devdata); +void intel_bios_for_each_encoder(struct drm_i915_private *i915, + void (*func)(struct drm_i915_private *i915, + const struct intel_bios_encoder_data *devdata)); + #endif /* _INTEL_BIOS_H_ */ diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c index 9e4e6482aa26..3cd2191fa794 100644 --- a/drivers/gpu/drm/i915/display/intel_ddi.c +++ b/drivers/gpu/drm/i915/display/intel_ddi.c @@ -32,6 +32,7 @@ #include "i915_drv.h" #include "i915_reg.h" +#include "icl_dsi.h" #include "intel_audio.h" #include "intel_audio_regs.h" #include "intel_backlight.h" @@ -4684,13 +4685,38 @@ static bool need_aux_ch(struct intel_encoder *encoder, bool init_dp) return init_dp || intel_phy_is_tc(i915, phy); } -void intel_ddi_init(struct drm_i915_private *dev_priv, enum port port) +static bool assert_has_icl_dsi(struct drm_i915_private *i915) +{ + return !drm_WARN(&i915->drm, !IS_ALDERLAKE_P(i915) && + !IS_TIGERLAKE(i915) && DISPLAY_VER(i915) != 11, + "Platform does not support DSI\n"); +} + +static bool port_in_use(struct drm_i915_private *i915, enum port port) +{ + struct intel_encoder *encoder; + + for_each_intel_encoder(&i915->drm, encoder) { + /* FIXME what about second port for dual link DSI? */ + if (encoder->port == port) + return true; + } + + return false; +} + +void intel_ddi_init(struct drm_i915_private *dev_priv, + const struct intel_bios_encoder_data *devdata) { struct intel_digital_port *dig_port; struct intel_encoder *encoder; - const struct intel_bios_encoder_data *devdata; bool init_hdmi, init_dp; - enum phy phy = intel_port_to_phy(dev_priv, port); + enum port port; + enum phy phy; + + port = intel_bios_encoder_port(devdata); + if (port == PORT_NONE) + return; if (!port_strap_detected(dev_priv, port)) { drm_dbg_kms(&dev_priv->drm, @@ -4701,6 +4727,23 @@ void intel_ddi_init(struct drm_i915_private *dev_priv, enum port port) if (!assert_port_valid(dev_priv, port)) return; + if (port_in_use(dev_priv, port)) { + drm_dbg_kms(&dev_priv->drm, + "Port %c already claimed\n", port_name(port)); + return; + } + + if (intel_bios_encoder_supports_dsi(devdata)) { + /* BXT/GLK handled elsewhere, for now at least */ + if (!assert_has_icl_dsi(dev_priv)) + return; + + icl_dsi_init(dev_priv, devdata); + return; + } + + phy = intel_port_to_phy(dev_priv, port); + /* * On platforms with HTI (aka HDPORT), if it's enabled at boot it may * have taken over some of the PHYs and made them unavailable to the @@ -4713,14 +4756,6 @@ void intel_ddi_init(struct drm_i915_private *dev_priv, enum port port) return; } - devdata = intel_bios_encoder_data_lookup(dev_priv, port); - if (!devdata) { - drm_dbg_kms(&dev_priv->drm, - "VBT says port %c is not present\n", - port_name(port)); - return; - } - init_hdmi = intel_bios_encoder_supports_dvi(devdata) || intel_bios_encoder_supports_hdmi(devdata); init_dp = intel_bios_encoder_supports_dp(devdata); diff --git a/drivers/gpu/drm/i915/display/intel_ddi.h b/drivers/gpu/drm/i915/display/intel_ddi.h index 2bc034042a93..4999c0ee229b 100644 --- a/drivers/gpu/drm/i915/display/intel_ddi.h +++ b/drivers/gpu/drm/i915/display/intel_ddi.h @@ -11,6 +11,7 @@ struct drm_connector_state; struct drm_i915_private; struct intel_atomic_state; +struct intel_bios_encoder_data; struct intel_connector; struct intel_crtc; struct intel_crtc_state; @@ -50,7 +51,8 @@ void hsw_prepare_dp_ddi_buffers(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state); void intel_wait_ddi_buf_idle(struct drm_i915_private *dev_priv, enum port port); -void intel_ddi_init(struct drm_i915_private *dev_priv, enum port port); +void intel_ddi_init(struct drm_i915_private *dev_priv, + const struct intel_bios_encoder_data *devdata); bool intel_ddi_get_hw_state(struct intel_encoder *encoder, enum pipe *pipe); void intel_ddi_enable_transcoder_func(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state); diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index 797c284c7eff..43cba98f7753 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -53,7 +53,6 @@ #include "i915_utils.h" #include "i9xx_plane.h" #include "i9xx_wm.h" -#include "icl_dsi.h" #include "intel_atomic.h" #include "intel_atomic_plane.h" #include "intel_audio.h" @@ -7412,18 +7411,10 @@ void intel_setup_outputs(struct drm_i915_private *dev_priv) return; if (HAS_DDI(dev_priv)) { - enum port port; - if (intel_ddi_crt_present(dev_priv)) intel_crt_init(dev_priv); - for_each_port_masked(port, DISPLAY_RUNTIME_INFO(dev_priv)->port_mask) - intel_ddi_init(dev_priv, port); - - /* FIXME do something about DSI */ - if (IS_ALDERLAKE_P(dev_priv) || IS_TIGERLAKE(dev_priv) || - DISPLAY_VER(dev_priv) == 11) - icl_dsi_init(dev_priv); + intel_bios_for_each_encoder(dev_priv, intel_ddi_init); if (IS_GEMINILAKE(dev_priv) || IS_BROXTON(dev_priv)) vlv_dsi_init(dev_priv); diff --git a/drivers/gpu/drm/i915/display/intel_display_core.h b/drivers/gpu/drm/i915/display/intel_display_core.h index c37d2c4bbf76..53e5c33e08c3 100644 --- a/drivers/gpu/drm/i915/display/intel_display_core.h +++ b/drivers/gpu/drm/i915/display/intel_display_core.h @@ -34,7 +34,6 @@ struct i915_audio_component; struct i915_hdcp_arbiter; struct intel_atomic_state; struct intel_audio_funcs; -struct intel_bios_encoder_data; struct intel_cdclk_funcs; struct intel_cdclk_vals; struct intel_color_funcs; @@ -219,7 +218,6 @@ struct intel_vbt_data { struct list_head display_devices; struct list_head bdb_blocks; - struct intel_bios_encoder_data *ports[I915_MAX_PORTS]; /* Non-NULL if port present. */ struct sdvo_device_mapping { u8 initialized; u8 dvo_port; -- 2.39.5