From patchwork Wed Oct 26 23:22:57 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Srivatsa, Anusha" X-Patchwork-Id: 13021433 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 68C67FA373D for ; Wed, 26 Oct 2022 23:23:04 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id C9B4E10E11A; Wed, 26 Oct 2022 23:23:03 +0000 (UTC) Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by gabe.freedesktop.org (Postfix) with ESMTPS id 38F1310E0BE for ; Wed, 26 Oct 2022 23:22:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1666826566; x=1698362566; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=bDKYB6+xy0PdPUQt2ykTlfuZE/t3NEmLK5M8jRzjMKQ=; b=Wx/tv33I8PnYzK18W//+tck7qxjFUiengV14DJ0X+tfBaZs2oVkFfHa9 XAM293l7zucdIrF4dUToBbYj2rBWK3b5EmtHEnMyfdGk5ojrXNn70KFar yiIBk5qlegUfljjpNKJ0ZNJ4SFqQZ1SRg0GBR3Kbjrnj11OwbCpnAbAZl Js/fUG8hLz0oTW9uxwKLG5pADkhoBhXGYGK/xxC7i3YpdBEqCZBvAUB+n XHgpov0Vqh+5IDhZvye1ndJCGRdzWRzbcF6ER6xTEtAgw1B5cwjcDeDq+ 57gjgAz//z6cBc/7fhXm+YMR7J/WCjMheh0FJm114zOalS1LAQckqaV5R Q==; X-IronPort-AV: E=McAfee;i="6500,9779,10512"; a="295492769" X-IronPort-AV: E=Sophos;i="5.95,215,1661842800"; d="scan'208";a="295492769" Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Oct 2022 16:22:46 -0700 X-IronPort-AV: E=McAfee;i="6500,9779,10512"; a="774781534" X-IronPort-AV: E=Sophos;i="5.95,215,1661842800"; d="scan'208";a="774781534" Received: from anushasr-mobl7.jf.intel.com ([10.24.14.105]) by fmsmga001-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Oct 2022 16:22:45 -0700 From: Anusha Srivatsa To: intel-gfx@lists.freedesktop.org Date: Wed, 26 Oct 2022 16:22:57 -0700 Message-Id: <20221026232257.281240-2-anusha.srivatsa@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20221026232257.281240-1-anusha.srivatsa@intel.com> References: <20221026232257.281240-1-anusha.srivatsa@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH 2/2] drm/i915/display: Add CDCLK Support for MTL 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" As per bSpec MTL has 38.4 MHz Reference clock. MTL does support squasher like DG2 but only for lower frequencies. Change the has_cdclk_squasher() helper to reflect this. v2: Revert to using bxt_get_cdclk() BSpec: 65243 Cc: Clint Taylor Signed-off-by: Anusha Srivatsa --- drivers/gpu/drm/i915/display/intel_cdclk.c | 22 +++++++++++++++++++++- 1 file changed, 21 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/display/intel_cdclk.c b/drivers/gpu/drm/i915/display/intel_cdclk.c index 6a775367f02a..28253cb310ca 100644 --- a/drivers/gpu/drm/i915/display/intel_cdclk.c +++ b/drivers/gpu/drm/i915/display/intel_cdclk.c @@ -1345,6 +1345,16 @@ static const struct intel_cdclk_vals dg2_cdclk_table[] = { {} }; +static const struct intel_cdclk_vals mtl_cdclk_table[] = { + { .refclk = 38400, .cdclk = 172800, .divider = 2, .ratio = 16, .waveform = 0xad5a }, + { .refclk = 38400, .cdclk = 192000, .divider = 2, .ratio = 16, .waveform = 0xb6b6 }, + { .refclk = 38400, .cdclk = 307200, .divider = 2, .ratio = 16, .waveform = 0x0000 }, + { .refclk = 38400, .cdclk = 480000, .divider = 2, .ratio = 25, .waveform = 0x0000 }, + { .refclk = 38400, .cdclk = 556800, .divider = 2, .ratio = 29, .waveform = 0x0000 }, + { .refclk = 38400, .cdclk = 652800, .divider = 2, .ratio = 34, .waveform = 0x0000 }, + {} +}; + static int bxt_calc_cdclk(struct drm_i915_private *dev_priv, int min_cdclk) { const struct intel_cdclk_vals *table = dev_priv->display.cdclk.table; @@ -3160,6 +3170,13 @@ u32 intel_read_rawclk(struct drm_i915_private *dev_priv) return freq; } +static const struct intel_cdclk_funcs mtl_cdclk_funcs = { + .get_cdclk = bxt_get_cdclk, + .set_cdclk = bxt_set_cdclk, + .modeset_calc_cdclk = bxt_modeset_calc_cdclk, + .calc_voltage_level = tgl_calc_voltage_level, +}; + static const struct intel_cdclk_funcs tgl_cdclk_funcs = { .get_cdclk = bxt_get_cdclk, .set_cdclk = bxt_set_cdclk, @@ -3295,7 +3312,10 @@ static const struct intel_cdclk_funcs i830_cdclk_funcs = { */ void intel_init_cdclk_hooks(struct drm_i915_private *dev_priv) { - if (IS_DG2(dev_priv)) { + if (IS_METEORLAKE(dev_priv)) { + dev_priv->display.funcs.cdclk = &mtl_cdclk_funcs; + dev_priv->display.cdclk.table = mtl_cdclk_table; + } else if (IS_DG2(dev_priv)) { dev_priv->display.funcs.cdclk = &tgl_cdclk_funcs; dev_priv->display.cdclk.table = dg2_cdclk_table; } else if (IS_ALDERLAKE_P(dev_priv)) {