From patchwork Wed Nov 16 21:50:40 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Srivatsa, Anusha" X-Patchwork-Id: 13045893 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 CA8FAC4332F for ; Wed, 16 Nov 2022 21:50:22 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 5008410E4FC; Wed, 16 Nov 2022 21:50:20 +0000 (UTC) Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by gabe.freedesktop.org (Postfix) with ESMTPS id 792F510E4ED for ; Wed, 16 Nov 2022 21:50:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1668635417; x=1700171417; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=2S9E1038SsxOO/0gR+OYYG5Imx+CgC5I6gLDUSsxyNc=; b=Ef2CYE+xuM0VqerHEjOJLrWwuxSw32MwGwMYFrOMcSvSiIQYl/KagN8U lBJCgSt3ICMzF3p3BQ0EGVs2dLM05LmdSPkgJ3lVzB6gP/1tEqiCnKraH dugKdGj40gV7NVFcKSE8BzjL46z1wDVW7SNRf6eIBhfki7QebncVx3fKW v991lGS2ROauCWqwSud2TxRqf81vJMLm6NC9gNHnud9VX7NRx6nw1Rh7E hPSFqpQa89DmKqFwyN4yha6JpOQc/ui2VZ9z3G8nGj9qe+BqDLaM+ceGW OnYU31pwh70qsa/77F6L2rZ+HtIHpyiUs+DEbOBoVYoJ6iXD/kDBEfHzE Q==; X-IronPort-AV: E=McAfee;i="6500,9779,10533"; a="339497818" X-IronPort-AV: E=Sophos;i="5.96,169,1665471600"; d="scan'208";a="339497818" Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Nov 2022 13:50:14 -0800 X-IronPort-AV: E=McAfee;i="6500,9779,10533"; a="745235717" X-IronPort-AV: E=Sophos;i="5.96,169,1665471600"; d="scan'208";a="745235717" Received: from anushasr-mobl7.jf.intel.com ([10.24.14.52]) by fmsmga002-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Nov 2022 13:50:14 -0800 From: Anusha Srivatsa To: intel-gfx@lists.freedesktop.org Date: Wed, 16 Nov 2022 13:50:40 -0800 Message-Id: <20221116215040.713104-3-anusha.srivatsa@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20221116215040.713104-1-anusha.srivatsa@intel.com> References: <20221116215040.713104-1-anusha.srivatsa@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH 3/3] 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. Adding the cdclk tables and cdclk_funcs that MTL will use. v2: Revert to using bxt_get_cdclk() BSpec: 65243 Cc: Clint Taylor Signed-off-by: Anusha Srivatsa Reviewed-by: Clint Taylor --- 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 ddbe94aac293..f540869c5b29 100644 --- a/drivers/gpu/drm/i915/display/intel_cdclk.c +++ b/drivers/gpu/drm/i915/display/intel_cdclk.c @@ -1346,6 +1346,16 @@ 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; @@ -3186,6 +3196,13 @@ 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, @@ -3321,7 +3338,10 @@ 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)) {