From patchwork Mon Jan 20 04:21:21 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Nautiyal, Ankit K" X-Patchwork-Id: 13944759 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id AFD37C02188 for ; Mon, 20 Jan 2025 04:32:51 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 503E710E2BF; Mon, 20 Jan 2025 04:32:51 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="TLeCVQwO"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.13]) by gabe.freedesktop.org (Postfix) with ESMTPS id 0520210E2A2; Mon, 20 Jan 2025 04:32:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1737347568; x=1768883568; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=wOXzlAnMVakXiydBFiTCENUgEUQQcORz/5Q+OnSuMoY=; b=TLeCVQwOybJYsiZCaY+A1CLf180gqcYm2MPF1qL9MBf/JnRsWEMer820 KlIkH2KOmz37oMx6fDnUx20t2gQ3oJUABoo5EHXofbUGUyeucqizPVLEl s2BsfacVDtV8Txc2sub6854PMAGBOObJsPGalu4sfTr8LsRLj61Xsfa8i r3XMnV81d8JQiowRQZk1vfDdZaj3eK22BvUERuovYS5B39+0EK6V/PULE ULOYyNxM4tq/PpMMAe9GGkv9iWhuwoqpDUniarAs2CR+9dy07KDxraBRW jkJvAU6pGHp2+dBJVZnNEZ8huQEoooslPRInzwxI5xuqoVBQxAEeZ/73e Q==; X-CSE-ConnectionGUID: BFqkj6vNTiKnrd4FTOCuSw== X-CSE-MsgGUID: Lst5k9SkSfqLScTPnrtGbw== X-IronPort-AV: E=McAfee;i="6700,10204,11320"; a="48700061" X-IronPort-AV: E=Sophos;i="6.13,218,1732608000"; d="scan'208";a="48700061" Received: from fmviesa007.fm.intel.com ([10.60.135.147]) by orvoesa105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Jan 2025 20:32:48 -0800 X-CSE-ConnectionGUID: yEmjtv5ZSqG8Hto4WkyaPw== X-CSE-MsgGUID: PMKPaOUpRrG+granplJAhA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.13,218,1732608000"; d="scan'208";a="106315701" Received: from srr4-3-linux-103-aknautiy.iind.intel.com ([10.223.34.160]) by fmviesa007-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Jan 2025 20:32:46 -0800 From: Ankit Nautiyal To: intel-gfx@lists.freedesktop.org, intel-xe@lists.freedesktop.org Cc: jani.nikula@linux.intel.com, suraj.kandpal@intel.com Subject: [PATCH 5/5] drm/i915/cx0_phy: Use HDMI PLL algorithm for C10 PHY Date: Mon, 20 Jan 2025 09:51:21 +0530 Message-ID: <20250120042122.1029481-6-ankit.k.nautiyal@intel.com> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20250120042122.1029481-1-ankit.k.nautiyal@intel.com> References: <20250120042122.1029481-1-ankit.k.nautiyal@intel.com> MIME-Version: 1.0 X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Try HDMI PLL alogorithm for C10 PHY, if there are no pre-computed tables. Also get rid of the helpers to get rate for HDMI for C10/20 PHY, as we no longer depend only on pre-computed tables. Signed-off-by: Ankit Nautiyal Reviewed-by: Suraj Kandpal --- drivers/gpu/drm/i915/display/intel_cx0_phy.c | 49 +++++--------------- drivers/gpu/drm/i915/display/intel_cx0_phy.h | 1 - drivers/gpu/drm/i915/display/intel_hdmi.c | 10 ---- 3 files changed, 11 insertions(+), 49 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_cx0_phy.c b/drivers/gpu/drm/i915/display/intel_cx0_phy.c index 058013c74991..1c7d9467e81c 100644 --- a/drivers/gpu/drm/i915/display/intel_cx0_phy.c +++ b/drivers/gpu/drm/i915/display/intel_cx0_phy.c @@ -18,6 +18,7 @@ #include "intel_hdmi.h" #include "intel_panel.h" #include "intel_psr.h" +#include "intel_snps_hdmi_pll.h" #include "intel_tc.h" #define MB_WRITE_COMMITTED true @@ -2003,19 +2004,6 @@ static const struct intel_c20pll_state * const mtl_c20_hdmi_tables[] = { NULL, }; -static int intel_c10_phy_check_hdmi_link_rate(int clock) -{ - const struct intel_c10pll_state * const *tables = mtl_c10_hdmi_tables; - int i; - - for (i = 0; tables[i]; i++) { - if (clock == tables[i]->clock) - return MODE_OK; - } - - return MODE_CLOCK_RANGE; -} - static const struct intel_c10pll_state * const * intel_c10pll_tables_get(struct intel_crtc_state *crtc_state, struct intel_encoder *encoder) @@ -2077,6 +2065,16 @@ static int intel_c10pll_calc_state(struct intel_crtc_state *crtc_state, } } + /* For HDMI PLLs try SNPS PHY algorithm, if there are no precomputed tables */ + if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI)) { + intel_snps_hdmi_pll_compute_c10pll(&crtc_state->dpll_hw_state.cx0pll.c10, + crtc_state->port_clock); + intel_c10pll_update_pll(crtc_state, encoder); + crtc_state->dpll_hw_state.cx0pll.use_c10 = true; + + return 0; + } + return -EINVAL; } @@ -2281,31 +2279,6 @@ static int intel_c20_compute_hdmi_tmds_pll(struct intel_crtc_state *crtc_state) return 0; } -static int intel_c20_phy_check_hdmi_link_rate(int clock) -{ - const struct intel_c20pll_state * const *tables = mtl_c20_hdmi_tables; - int i; - - for (i = 0; tables[i]; i++) { - if (clock == tables[i]->clock) - return MODE_OK; - } - - if (clock >= 25175 && clock <= 594000) - return MODE_OK; - - return MODE_CLOCK_RANGE; -} - -int intel_cx0_phy_check_hdmi_link_rate(struct intel_hdmi *hdmi, int clock) -{ - struct intel_digital_port *dig_port = hdmi_to_dig_port(hdmi); - - if (intel_encoder_is_c10phy(&dig_port->base)) - return intel_c10_phy_check_hdmi_link_rate(clock); - return intel_c20_phy_check_hdmi_link_rate(clock); -} - static const struct intel_c20pll_state * const * intel_c20_pll_tables_get(struct intel_crtc_state *crtc_state, struct intel_encoder *encoder) diff --git a/drivers/gpu/drm/i915/display/intel_cx0_phy.h b/drivers/gpu/drm/i915/display/intel_cx0_phy.h index 711168882684..573fa7d3e88f 100644 --- a/drivers/gpu/drm/i915/display/intel_cx0_phy.h +++ b/drivers/gpu/drm/i915/display/intel_cx0_phy.h @@ -41,7 +41,6 @@ bool intel_cx0pll_compare_hw_state(const struct intel_cx0pll_state *a, const struct intel_cx0pll_state *b); void intel_cx0_phy_set_signal_levels(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state); -int intel_cx0_phy_check_hdmi_link_rate(struct intel_hdmi *hdmi, int clock); int intel_mtl_tbt_calc_port_clock(struct intel_encoder *encoder); #endif /* __INTEL_CX0_PHY_H__ */ diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c index 9a4bc3c4611d..3b51238022f4 100644 --- a/drivers/gpu/drm/i915/display/intel_hdmi.c +++ b/drivers/gpu/drm/i915/display/intel_hdmi.c @@ -1909,16 +1909,6 @@ hdmi_port_clock_valid(struct intel_hdmi *hdmi, if (intel_encoder_is_tc(encoder) && clock > 500000 && clock < 532800) return MODE_CLOCK_RANGE; - /* - * SNPS PHYs' MPLLB table-based programming can only handle a fixed - * set of link rates. - * - * FIXME: We will hopefully get an algorithmic way of programming - * the MPLLB for HDMI in the future. - */ - if (DISPLAY_VER(display) >= 14) - return intel_cx0_phy_check_hdmi_link_rate(hdmi, clock); - return MODE_OK; }