From mboxrd@z Thu Jan 1 00:00:00 1970 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 35CADC5B56A for ; Tue, 11 Aug 2026 17:58:52 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 8C87A10E353; Tue, 11 Aug 2026 17:58:51 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="b4bD71x8"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.19]) by gabe.freedesktop.org (Postfix) with ESMTPS id 30EC610E34F; Tue, 11 Aug 2026 17:58:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1786471131; x=1818007131; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=BRVFgibiEbyMHfJnL9AJ72DYGkdGbKHeGebF1FcdxeY=; b=b4bD71x8/DJVoM474koUQiLEyb57GpJCZyXd62SMFixvPkUxiZgrT4YA MuQEhsDCl5Uf58G1H/knLJOgkEZH+7oeMiaKk/6mASKCfymgDtQ8KgSPB NseqfIP1GSOFjl+K0Z1QObjJM4blosInQ+96PbtMOn3/1AnQfDKIKF1gs I9L/CTfYa5hWi3p8R4qoMY97rIRgUUt+gIYWQwyrwD5IcZPxSBiZ3wJQc UsSBmbwyQCtg8AoTsRm/bSlRUTstXkU0aJqEERRb9VuLyKR6RxqoXxjDB 5oeAK/8Syd8moKs/cVtnmLdu+9jciEr7Kp6cnYDDxKq5iX0dPrxMhlh9h Q==; X-CSE-ConnectionGUID: edvCilsTTTG2Dd4uxuEQYQ== X-CSE-MsgGUID: OKsP0dp5RyWjzwCokgDZJA== X-IronPort-AV: E=McAfee;i="6800,10657,11872"; a="86941285" X-IronPort-AV: E=Sophos;i="6.25,218,1779174000"; d="scan'208";a="86941285" Received: from fmviesa007.fm.intel.com ([10.60.135.147]) by orvoesa111.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Aug 2026 10:58:50 -0700 X-CSE-ConnectionGUID: a5VnJQpoQqq5DBRbMcEMVQ== X-CSE-MsgGUID: /5vuFsPIQZaSLicJnxUvgg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.25,218,1779174000"; d="scan'208";a="260083587" Received: from kandpal-x299-ud4-pro.iind.intel.com ([10.190.239.10]) by fmviesa007.fm.intel.com with ESMTP; 11 Aug 2026 10:58:48 -0700 From: Suraj Kandpal To: intel-xe@lists.freedesktop.org, intel-gfx@lists.freedesktop.org Cc: ankit.k.nautiyal@intel.com, Suraj Kandpal Subject: [PATCH v2 0/3] Fix value being written to DDI_CLK_VALFREQ Date: Tue, 11 Aug 2026 23:28:41 +0530 Message-Id: <20260811175844.2613721-1-suraj.kandpal@intel.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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" Currently we write the portclock as is into DDI_CLK_VALFREQ register. Which is fine for HDMI TMDS and DP 8b/10b encoding but for DP 128b/132b and HDMI FRL port clock needs to be modified to the appropriate symbol clock and then be written into this register. H/w has not thrown a bug yet because this is a validation register and has no functional impact on H/w. Signed-off-by: Suraj Kandpal Suraj Kandpal (3): drm/i915/ddi: add helper to compute DDI clock frequency drm/i915/cx0: program DDI_CLK_VALFREQ with DDI clock frequency drm/i915/lt_phy: program DDI_CLK_VALFREQ with DDI clock frequency drivers/gpu/drm/i915/display/intel_cx0_phy.c | 5 +++-- drivers/gpu/drm/i915/display/intel_ddi.c | 11 +++++++++++ drivers/gpu/drm/i915/display/intel_ddi.h | 1 + drivers/gpu/drm/i915/display/intel_lt_phy.c | 6 ++++-- 4 files changed, 19 insertions(+), 4 deletions(-) -- 2.34.1