From: Suraj Kandpal Date: Wed, 12 Feb 2025 07:45:41 +0000 (+0530) Subject: drm/i915/dpll: Accept intel_display as argument for shared_dpll_init X-Git-Tag: v6.15-rc1~120^2~16^2~86 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=7d7529582cc29ab06bb0b269f3364586abacff52;p=thirdparty%2Fkernel%2Flinux.git drm/i915/dpll: Accept intel_display as argument for shared_dpll_init Use intel_display as an argument for intel_shared_dpll_init() and replace drm_i915_private in function wherever possible. While at it prefer using display->platform.xx over IS_PLATFORM. Initialize dpio_phy and dpio_channel since with IS_GEMINILAKE() and IS_BROXTON() compiler knows it will return false for xe but since display->platform.xx is a runtime check which means the compiler sees a potential path where uninitialized variables could be accessed and raises a warning. --v2 -Amend commit message to explain why some variables were initialized [Jani] Signed-off-by: Suraj Kandpal Reviewed-by: Jani Nikula Link: https://patchwork.freedesktop.org/patch/msgid/20250212074542.3569452-8-suraj.kandpal@intel.com --- diff --git a/drivers/gpu/drm/i915/display/intel_display_driver.c b/drivers/gpu/drm/i915/display/intel_display_driver.c index 978f530c810e9..852f1129a058d 100644 --- a/drivers/gpu/drm/i915/display/intel_display_driver.c +++ b/drivers/gpu/drm/i915/display/intel_display_driver.c @@ -448,7 +448,7 @@ int intel_display_driver_probe_nogem(struct intel_display *display) } intel_plane_possible_crtcs_init(display); - intel_shared_dpll_init(i915); + intel_shared_dpll_init(display); intel_fdi_pll_freq_update(i915); intel_update_czclk(i915); diff --git a/drivers/gpu/drm/i915/display/intel_dpll_mgr.c b/drivers/gpu/drm/i915/display/intel_dpll_mgr.c index 124f590a15c09..1c718748dacb3 100644 --- a/drivers/gpu/drm/i915/display/intel_dpll_mgr.c +++ b/drivers/gpu/drm/i915/display/intel_dpll_mgr.c @@ -2044,8 +2044,8 @@ static void bxt_ddi_pll_enable(struct intel_display *display, { const struct bxt_dpll_hw_state *hw_state = &dpll_hw_state->bxt; enum port port = (enum port)pll->info->id; /* 1:1 port->PLL mapping */ - enum dpio_phy phy; - enum dpio_channel ch; + enum dpio_phy phy = DPIO_PHY0; + enum dpio_channel ch = DPIO_CH0; u32 temp; bxt_port_to_phy_channel(display, port, &phy, &ch); @@ -4304,40 +4304,41 @@ static const struct intel_dpll_mgr adlp_pll_mgr = { /** * intel_shared_dpll_init - Initialize shared DPLLs - * @i915: i915 device + * @display: intel_display device * - * Initialize shared DPLLs for @i915. + * Initialize shared DPLLs for @display. */ -void intel_shared_dpll_init(struct drm_i915_private *i915) +void intel_shared_dpll_init(struct intel_display *display) { + struct drm_i915_private *i915 = to_i915(display->drm); const struct intel_dpll_mgr *dpll_mgr = NULL; const struct dpll_info *dpll_info; int i; - mutex_init(&i915->display.dpll.lock); + mutex_init(&display->dpll.lock); - if (DISPLAY_VER(i915) >= 14 || IS_DG2(i915)) + if (DISPLAY_VER(display) >= 14 || display->platform.dg2) /* No shared DPLLs on DG2; port PLLs are part of the PHY */ dpll_mgr = NULL; - else if (IS_ALDERLAKE_P(i915)) + else if (display->platform.alderlake_p) dpll_mgr = &adlp_pll_mgr; - else if (IS_ALDERLAKE_S(i915)) + else if (display->platform.alderlake_s) dpll_mgr = &adls_pll_mgr; - else if (IS_DG1(i915)) + else if (display->platform.dg1) dpll_mgr = &dg1_pll_mgr; - else if (IS_ROCKETLAKE(i915)) + else if (display->platform.rocketlake) dpll_mgr = &rkl_pll_mgr; - else if (DISPLAY_VER(i915) >= 12) + else if (DISPLAY_VER(display) >= 12) dpll_mgr = &tgl_pll_mgr; - else if (IS_JASPERLAKE(i915) || IS_ELKHARTLAKE(i915)) + else if (display->platform.jasperlake || display->platform.elkhartlake) dpll_mgr = &ehl_pll_mgr; - else if (DISPLAY_VER(i915) >= 11) + else if (DISPLAY_VER(display) >= 11) dpll_mgr = &icl_pll_mgr; - else if (IS_GEMINILAKE(i915) || IS_BROXTON(i915)) + else if (display->platform.geminilake || display->platform.broxton) dpll_mgr = &bxt_pll_mgr; - else if (DISPLAY_VER(i915) == 9) + else if (DISPLAY_VER(display) == 9) dpll_mgr = &skl_pll_mgr; - else if (HAS_DDI(i915)) + else if (HAS_DDI(display)) dpll_mgr = &hsw_pll_mgr; else if (HAS_PCH_IBX(i915) || HAS_PCH_CPT(i915)) dpll_mgr = &pch_pll_mgr; @@ -4348,20 +4349,20 @@ void intel_shared_dpll_init(struct drm_i915_private *i915) dpll_info = dpll_mgr->dpll_info; for (i = 0; dpll_info[i].name; i++) { - if (drm_WARN_ON(&i915->drm, - i >= ARRAY_SIZE(i915->display.dpll.shared_dplls))) + if (drm_WARN_ON(display->drm, + i >= ARRAY_SIZE(display->dpll.shared_dplls))) break; /* must fit into unsigned long bitmask on 32bit */ - if (drm_WARN_ON(&i915->drm, dpll_info[i].id >= 32)) + if (drm_WARN_ON(display->drm, dpll_info[i].id >= 32)) break; - i915->display.dpll.shared_dplls[i].info = &dpll_info[i]; - i915->display.dpll.shared_dplls[i].index = i; + display->dpll.shared_dplls[i].info = &dpll_info[i]; + display->dpll.shared_dplls[i].index = i; } - i915->display.dpll.mgr = dpll_mgr; - i915->display.dpll.num_shared_dpll = i; + display->dpll.mgr = dpll_mgr; + display->dpll.num_shared_dpll = i; } /** diff --git a/drivers/gpu/drm/i915/display/intel_dpll_mgr.h b/drivers/gpu/drm/i915/display/intel_dpll_mgr.h index 3d988f17f31d1..caffb084830ce 100644 --- a/drivers/gpu/drm/i915/display/intel_dpll_mgr.h +++ b/drivers/gpu/drm/i915/display/intel_dpll_mgr.h @@ -35,7 +35,6 @@ ((__pll) = &(__display)->dpll.shared_dplls[(__i)]) ; (__i)++) enum tc_port; -struct drm_i915_private; struct drm_printer; struct intel_atomic_state; struct intel_crtc; @@ -422,7 +421,7 @@ bool intel_dpll_get_hw_state(struct intel_display *display, void intel_enable_shared_dpll(const struct intel_crtc_state *crtc_state); void intel_disable_shared_dpll(const struct intel_crtc_state *crtc_state); void intel_shared_dpll_swap_state(struct intel_atomic_state *state); -void intel_shared_dpll_init(struct drm_i915_private *i915); +void intel_shared_dpll_init(struct intel_display *display); void intel_dpll_update_ref_clks(struct intel_display *display); void intel_dpll_readout_hw_state(struct intel_display *display); void intel_dpll_sanitize_state(struct intel_display *display);