Message ID | 20200710115757.290984-8-matthew.auld@intel.com (mailing list archive) |
---|---|
State | New, archived |
Headers | show
Return-Path: <SRS0=fwG1=AV=lists.freedesktop.org=intel-gfx-bounces@kernel.org> Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 54AAA92A for <patchwork-intel-gfx@patchwork.kernel.org>; Fri, 10 Jul 2020 11:59:17 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 3B4C4207BB for <patchwork-intel-gfx@patchwork.kernel.org>; Fri, 10 Jul 2020 11:59:17 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3B4C4207BB Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id C8CF86EBE7; Fri, 10 Jul 2020 11:59:16 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTPS id E97026EBE8 for <intel-gfx@lists.freedesktop.org>; Fri, 10 Jul 2020 11:59:14 +0000 (UTC) IronPort-SDR: wNSfzpcXsh82Qny7i9YW7ispTKxSX8mb19qg0hDjwxfVgnn0a2xL+oj+FTS8wsZveGZqozKibM ya8fvOed1njg== X-IronPort-AV: E=McAfee;i="6000,8403,9677"; a="149653645" X-IronPort-AV: E=Sophos;i="5.75,335,1589266800"; d="scan'208";a="149653645" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga005.jf.intel.com ([10.7.209.41]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Jul 2020 04:59:14 -0700 IronPort-SDR: VSr1v6EKxZBmO+pf2AiuSrEDML2aFGFb3Sornca95+8XIDFRHuLYx+WWb+ByX7mDmpeM4zCGqO 9P0yR3WH9/kA== X-IronPort-AV: E=Sophos;i="5.75,335,1589266800"; d="scan'208";a="458257351" Received: from nmartino-mobl1.ger.corp.intel.com (HELO mwahaha-bdw.ger.corp.intel.com) ([10.255.207.224]) by orsmga005-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Jul 2020 04:59:11 -0700 From: Matthew Auld <matthew.auld@intel.com> To: intel-gfx@lists.freedesktop.org Date: Fri, 10 Jul 2020 12:57:04 +0100 Message-Id: <20200710115757.290984-8-matthew.auld@intel.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200710115757.290984-1-matthew.auld@intel.com> References: <20200710115757.290984-1-matthew.auld@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [RFC 07/60] drm/i915/dg1: Initialize RAWCLK properly X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development <intel-gfx.lists.freedesktop.org> List-Unsubscribe: <https://lists.freedesktop.org/mailman/options/intel-gfx>, <mailto:intel-gfx-request@lists.freedesktop.org?subject=unsubscribe> List-Archive: <https://lists.freedesktop.org/archives/intel-gfx> List-Post: <mailto:intel-gfx@lists.freedesktop.org> List-Help: <mailto:intel-gfx-request@lists.freedesktop.org?subject=help> List-Subscribe: <https://lists.freedesktop.org/mailman/listinfo/intel-gfx>, <mailto:intel-gfx-request@lists.freedesktop.org?subject=subscribe> Cc: Lucas De Marchi <lucas.demarchi@intel.com> Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" <intel-gfx-bounces@lists.freedesktop.org> |
Series |
DG1 LMEM enabling
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expand
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diff --git a/drivers/gpu/drm/i915/display/intel_cdclk.c b/drivers/gpu/drm/i915/display/intel_cdclk.c index bb91dace304a..a779da701ad5 100644 --- a/drivers/gpu/drm/i915/display/intel_cdclk.c +++ b/drivers/gpu/drm/i915/display/intel_cdclk.c @@ -2680,6 +2680,18 @@ void intel_update_cdclk(struct drm_i915_private *dev_priv) DIV_ROUND_UP(dev_priv->cdclk.hw.cdclk, 1000)); } +static int dg1_rawclk(struct drm_i915_private *dev_priv) +{ + /* + * DG1 always uses a 38.4 MHz rawclk. The bspec tells us + * "Program Numerator=2, Denominator=4, Divider=37 decimal." + */ + I915_WRITE(PCH_RAWCLK_FREQ, + CNP_RAWCLK_DEN(4) | CNP_RAWCLK_DIV(37) | ICP_RAWCLK_NUM(2)); + + return 38400; +} + static int cnp_rawclk(struct drm_i915_private *dev_priv) { u32 rawclk; @@ -2788,7 +2800,9 @@ u32 intel_read_rawclk(struct drm_i915_private *dev_priv) { u32 freq; - if (INTEL_PCH_TYPE(dev_priv) >= PCH_CNP) + if (INTEL_PCH_TYPE(dev_priv) >= PCH_DG1) + freq = dg1_rawclk(dev_priv); + else if (INTEL_PCH_TYPE(dev_priv) >= PCH_CNP) freq = cnp_rawclk(dev_priv); else if (HAS_PCH_SPLIT(dev_priv)) freq = pch_rawclk(dev_priv);