From e9b7e1422d409bb7d3423b8d1e59865227083669 Mon Sep 17 00:00:00 2001 From: Imre Deak Date: Fri, 28 Jun 2019 17:36:16 +0300 Subject: [PATCH] drm/i915: Sanitize the terminology used for TypeC port modes MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit The TypeC port mode can switch dynamically, to reflect that better call the port's mode as 'mode' rather than 'type'. While at it: - s/TC_PORT_TBT/TC_PORT_TBT_ALT/ and s/TC_PORT_TYPEC/TC_PORT_DP_ALT/. 'TYPEC' is ambiguous, TBT_ALT and DP_ALT better match the reality. - Remove the 'unknown' TypeC port mode. The mode is always known, it's the TBT-alt/safe mode after HW reset and after disconnecting the PHY. Simplify the tc_port/tc_type checks accordingly. - Don't WARN if the port mode changes, that can happen normally. No functional changes. Cc: Animesh Manna Cc: Paulo Zanoni Cc: Anusha Srivatsa Cc: José Roberto de Souza Cc: Rodrigo Vivi Signed-off-by: Imre Deak Reviewed-by: Lucas De Marchi Link: https://patchwork.freedesktop.org/patch/msgid/20190628143635.22066-5-imre.deak@intel.com --- drivers/gpu/drm/i915/display/intel_ddi.c | 11 +++--- drivers/gpu/drm/i915/display/intel_display.h | 7 ++-- drivers/gpu/drm/i915/display/intel_dp.c | 2 +- drivers/gpu/drm/i915/display/intel_dpll_mgr.c | 2 +- drivers/gpu/drm/i915/display/intel_tc.c | 48 +++++++++++---------------- drivers/gpu/drm/i915/intel_drv.h | 2 +- 6 files changed, 31 insertions(+), 41 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c index d06f121281ef..442cd3997109 100644 --- a/drivers/gpu/drm/i915/display/intel_ddi.c +++ b/drivers/gpu/drm/i915/display/intel_ddi.c @@ -2999,14 +2999,14 @@ static void icl_program_mg_dp_mode(struct intel_digital_port *intel_dig_port) enum tc_port tc_port = intel_port_to_tc(dev_priv, port); u32 ln0, ln1, lane_info; - if (tc_port == PORT_TC_NONE || intel_dig_port->tc_type == TC_PORT_TBT) + if (intel_dig_port->tc_mode == TC_PORT_TBT_ALT) return; ln0 = I915_READ(MG_DP_MODE(0, port)); ln1 = I915_READ(MG_DP_MODE(1, port)); - switch (intel_dig_port->tc_type) { - case TC_PORT_TYPEC: + switch (intel_dig_port->tc_mode) { + case TC_PORT_DP_ALT: ln0 &= ~(MG_DP_MODE_CFG_DP_X1_MODE | MG_DP_MODE_CFG_DP_X2_MODE); ln1 &= ~(MG_DP_MODE_CFG_DP_X1_MODE | MG_DP_MODE_CFG_DP_X2_MODE); @@ -3049,7 +3049,7 @@ static void icl_program_mg_dp_mode(struct intel_digital_port *intel_dig_port) break; default: - MISSING_CASE(intel_dig_port->tc_type); + MISSING_CASE(intel_dig_port->tc_mode); return; } @@ -3643,8 +3643,7 @@ intel_ddi_pre_pll_enable(struct intel_encoder *encoder, * Program the lane count for static/dynamic connections on Type-C ports. * Skip this step for TBT. */ - if (dig_port->tc_type == TC_PORT_UNKNOWN || - dig_port->tc_type == TC_PORT_TBT) + if (dig_port->tc_mode == TC_PORT_TBT_ALT) return; intel_ddi_set_fia_lane_count(encoder, crtc_state, port); diff --git a/drivers/gpu/drm/i915/display/intel_display.h b/drivers/gpu/drm/i915/display/intel_display.h index ee6b8194a459..d296556ed82e 100644 --- a/drivers/gpu/drm/i915/display/intel_display.h +++ b/drivers/gpu/drm/i915/display/intel_display.h @@ -189,10 +189,9 @@ enum tc_port { I915_MAX_TC_PORTS }; -enum tc_port_type { - TC_PORT_UNKNOWN = 0, - TC_PORT_TYPEC, - TC_PORT_TBT, +enum tc_port_mode { + TC_PORT_TBT_ALT, + TC_PORT_DP_ALT, TC_PORT_LEGACY, }; diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index 348c70b75403..0c6afec78f93 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -1176,7 +1176,7 @@ static u32 skl_get_aux_send_ctl(struct intel_dp *intel_dp, DP_AUX_CH_CTL_FW_SYNC_PULSE_SKL(32) | DP_AUX_CH_CTL_SYNC_PULSE_SKL(32); - if (intel_dig_port->tc_type == TC_PORT_TBT) + if (intel_dig_port->tc_mode == TC_PORT_TBT_ALT) ret |= DP_AUX_CH_CTL_TBT_IO; return ret; diff --git a/drivers/gpu/drm/i915/display/intel_dpll_mgr.c b/drivers/gpu/drm/i915/display/intel_dpll_mgr.c index 2d4e7b9a7b9d..bf66261c8bf0 100644 --- a/drivers/gpu/drm/i915/display/intel_dpll_mgr.c +++ b/drivers/gpu/drm/i915/display/intel_dpll_mgr.c @@ -2817,7 +2817,7 @@ icl_get_dpll(struct intel_crtc_state *crtc_state, intel_dig_port = enc_to_dig_port(&encoder->base); } - if (intel_dig_port->tc_type == TC_PORT_TBT) { + if (intel_dig_port->tc_mode == TC_PORT_TBT_ALT) { min = DPLL_ID_ICL_TBTPLL; max = min; ret = icl_calc_dpll_state(crtc_state, encoder); diff --git a/drivers/gpu/drm/i915/display/intel_tc.c b/drivers/gpu/drm/i915/display/intel_tc.c index 4fa9ea695d51..59aad3e49f93 100644 --- a/drivers/gpu/drm/i915/display/intel_tc.c +++ b/drivers/gpu/drm/i915/display/intel_tc.c @@ -7,19 +7,18 @@ #include "i915_drv.h" #include "intel_tc.h" -static const char *tc_type_name(enum tc_port_type type) +static const char *tc_port_mode_name(enum tc_port_mode mode) { static const char * const names[] = { - [TC_PORT_UNKNOWN] = "unknown", + [TC_PORT_TBT_ALT] = "tbt-alt", + [TC_PORT_DP_ALT] = "dp-alt", [TC_PORT_LEGACY] = "legacy", - [TC_PORT_TYPEC] = "typec", - [TC_PORT_TBT] = "tbt", }; - if (WARN_ON(type >= ARRAY_SIZE(names))) - type = TC_PORT_UNKNOWN; + if (WARN_ON(mode >= ARRAY_SIZE(names))) + mode = TC_PORT_TBT_ALT; - return names[type]; + return names[mode]; } int intel_tc_port_fia_max_lane_count(struct intel_digital_port *dig_port) @@ -29,7 +28,7 @@ int intel_tc_port_fia_max_lane_count(struct intel_digital_port *dig_port) intel_wakeref_t wakeref; u32 lane_info; - if (tc_port == PORT_TC_NONE || dig_port->tc_type != TC_PORT_TYPEC) + if (dig_port->tc_mode != TC_PORT_DP_ALT) return 4; lane_info = 0; @@ -81,8 +80,8 @@ static bool icl_tc_phy_connect(struct intel_digital_port *dig_port) enum tc_port tc_port = intel_port_to_tc(dev_priv, dig_port->base.port); u32 val; - if (dig_port->tc_type != TC_PORT_LEGACY && - dig_port->tc_type != TC_PORT_TYPEC) + if (dig_port->tc_mode != TC_PORT_LEGACY && + dig_port->tc_mode != TC_PORT_DP_ALT) return true; val = I915_READ(PORT_TX_DFLEXDPPMS); @@ -106,7 +105,7 @@ static bool icl_tc_phy_connect(struct intel_digital_port *dig_port) * Now we have to re-check the live state, in case the port recently * became disconnected. Not necessary for legacy mode. */ - if (dig_port->tc_type == TC_PORT_TYPEC && + if (dig_port->tc_mode == TC_PORT_DP_ALT && !(I915_READ(PORT_TX_DFLEXDPSP) & TC_LIVE_STATE_TC(tc_port))) { DRM_DEBUG_KMS("TC PHY %d sudden disconnect.\n", tc_port); icl_tc_phy_disconnect(dig_port); @@ -125,15 +124,12 @@ void icl_tc_phy_disconnect(struct intel_digital_port *dig_port) struct drm_i915_private *dev_priv = to_i915(dig_port->base.base.dev); enum tc_port tc_port = intel_port_to_tc(dev_priv, dig_port->base.port); - if (dig_port->tc_type == TC_PORT_UNKNOWN) - return; - /* * TBT disconnection flow is read the live status, what was done in * caller. */ - if (dig_port->tc_type == TC_PORT_TYPEC || - dig_port->tc_type == TC_PORT_LEGACY) { + if (dig_port->tc_mode == TC_PORT_DP_ALT || + dig_port->tc_mode == TC_PORT_LEGACY) { u32 val; val = I915_READ(PORT_TX_DFLEXDPCSSS); @@ -143,9 +139,9 @@ void icl_tc_phy_disconnect(struct intel_digital_port *dig_port) DRM_DEBUG_KMS("Port %c TC type %s disconnected\n", port_name(dig_port->base.port), - tc_type_name(dig_port->tc_type)); + tc_port_mode_name(dig_port->tc_mode)); - dig_port->tc_type = TC_PORT_UNKNOWN; + dig_port->tc_mode = TC_PORT_TBT_ALT; } static void icl_update_tc_port_type(struct drm_i915_private *dev_priv, @@ -153,26 +149,22 @@ static void icl_update_tc_port_type(struct drm_i915_private *dev_priv, bool is_legacy, bool is_typec, bool is_tbt) { enum port port = intel_dig_port->base.port; - enum tc_port_type old_type = intel_dig_port->tc_type; + enum tc_port_mode old_mode = intel_dig_port->tc_mode; WARN_ON(is_legacy + is_typec + is_tbt != 1); if (is_legacy) - intel_dig_port->tc_type = TC_PORT_LEGACY; + intel_dig_port->tc_mode = TC_PORT_LEGACY; else if (is_typec) - intel_dig_port->tc_type = TC_PORT_TYPEC; + intel_dig_port->tc_mode = TC_PORT_DP_ALT; else if (is_tbt) - intel_dig_port->tc_type = TC_PORT_TBT; + intel_dig_port->tc_mode = TC_PORT_TBT_ALT; else return; - /* Types are not supposed to be changed at runtime. */ - WARN_ON(old_type != TC_PORT_UNKNOWN && - old_type != intel_dig_port->tc_type); - - if (old_type != intel_dig_port->tc_type) + if (old_mode != intel_dig_port->tc_mode) DRM_DEBUG_KMS("Port %c has TC type %s\n", port_name(port), - tc_type_name(intel_dig_port->tc_type)); + tc_port_mode_name(intel_dig_port->tc_mode)); } /* diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index 1d58f7ec5d84..7159f709a7f2 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -1225,7 +1225,7 @@ struct intel_digital_port { enum aux_ch aux_ch; enum intel_display_power_domain ddi_io_power_domain; bool tc_legacy_port:1; - enum tc_port_type tc_type; + enum tc_port_mode tc_mode; void (*write_infoframe)(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state, -- 2.11.0