From nobody Wed Feb 11 00:59:07 2026 Received: from smtp1.tecnico.ulisboa.pt (smtp1.tecnico.ulisboa.pt [193.136.128.21]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 71CB514EC66; Tue, 7 May 2024 09:31:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=193.136.128.21 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715074295; cv=none; b=MYFlwBxVpolWK9U+wQoe6SWcM11yk5ws86qXMGRla5D8mBeMl4JwN1qUfXP5IKePslN2pxdS5A4cf10UenywJ9tdCySSncsP/1CLEny4dVxK6Z8ldTnWGgbgnlQsrPjlJe4pPHK6SrpiRoxq9M28KK3YqUK11CLOQzroaADgBsg= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715074295; c=relaxed/simple; bh=h3B/iHxIiuZ20yNInGM3iS/oSRk0sH2ZyDs3SZSjg5k=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=dITApHKoUAWCs0B5pveCMdjhtOLdjioIIADyOvU3v90BghMgCNPcqrVGlyc9iXW2jepwXtonGDQ/S4RJgHmPL+YW7mmSqacmVKpGubE3LcmTr2AZjRGRzc5RQ6/ECBrUbKqMUzCSjwd7dyX/LfUQI0ybC04n93FDQxaY3+91Pbg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=tecnico.ulisboa.pt; spf=pass smtp.mailfrom=tecnico.ulisboa.pt; dkim=pass (1024-bit key) header.d=tecnico.ulisboa.pt header.i=@tecnico.ulisboa.pt header.b=UFwrUml0; arc=none smtp.client-ip=193.136.128.21 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=tecnico.ulisboa.pt Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=tecnico.ulisboa.pt Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=tecnico.ulisboa.pt header.i=@tecnico.ulisboa.pt header.b="UFwrUml0" Received: from localhost (localhost.localdomain [127.0.0.1]) by smtp1.tecnico.ulisboa.pt (Postfix) with ESMTP id 9854960022FE; Tue, 7 May 2024 10:31:28 +0100 (WEST) X-Virus-Scanned: by amavis-2.13.0 (20230106) (Debian) at tecnico.ulisboa.pt Received: from smtp1.tecnico.ulisboa.pt ([127.0.0.1]) by localhost (smtp1.tecnico.ulisboa.pt [127.0.0.1]) (amavis, port 10025) with LMTP id ouCQ_8kLqxmO; Tue, 7 May 2024 10:31:26 +0100 (WEST) Received: from mail1.tecnico.ulisboa.pt (mail1.ist.utl.pt [IPv6:2001:690:2100:1::b3dd:b9ac]) by smtp1.tecnico.ulisboa.pt (Postfix) with ESMTPS id 3A62B60022F5; Tue, 7 May 2024 10:31:26 +0100 (WEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tecnico.ulisboa.pt; s=mail; t=1715074286; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=YVadnsK4bFte+vfSQ0rGftLRVFRW5Se0kh1kqTWlCPw=; b=UFwrUml0t0iS6QmwwE+Wc2wcfMMHcESlNII26ZEnf7hGcjoRTIb0RkdL9lz42eGAOY4cBC zlams1mbF504MTidUdR4N2ufHg3uz4ZnX2NfEYS59NQ14xVE8v2HPTnz+QRKe4GNl4uceP 49TdxHti2N9fgkWqBPO1Bg+MBUSiN0E= Received: from diogo-gram.home (unknown [IPv6:2a01:14:8070:dc60:4589:2164:1bc5:2670]) (Authenticated sender: ist187313) by mail1.tecnico.ulisboa.pt (Postfix) with ESMTPSA id 1D2BB36009A; Tue, 7 May 2024 10:31:26 +0100 (WEST) From: Diogo Ivo To: krzysztof.kozlowski@linaro.org, thierry.reding@gmail.com, jonathanh@nvidia.com, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Diogo Ivo Subject: [PATCH RESEND v3 2/7] memory: tegra: Move DQSOSC measurement to common place Date: Tue, 7 May 2024 10:30:45 +0100 Message-ID: <20240507093056.3921-3-diogo.ivo@tecnico.ulisboa.pt> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240507093056.3921-1-diogo.ivo@tecnico.ulisboa.pt> References: <20240507093056.3921-1-diogo.ivo@tecnico.ulisboa.pt> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Move the calls that instruct the RAM to capture its clock tree delays to update_clock_tree_delay() in order to avoid code duplication. Signed-off-by: Diogo Ivo --- Changes in v3: - Rename the delay length variable udelay -> delay_us to fix compile error drivers/memory/tegra/tegra210-emc-cc-r21021.c | 25 ++++++++----------- 1 file changed, 11 insertions(+), 14 deletions(-) diff --git a/drivers/memory/tegra/tegra210-emc-cc-r21021.c b/drivers/memory= /tegra/tegra210-emc-cc-r21021.c index 9ec49ced8f91..a3525f3b8145 100644 --- a/drivers/memory/tegra/tegra210-emc-cc-r21021.c +++ b/drivers/memory/tegra/tegra210-emc-cc-r21021.c @@ -123,10 +123,19 @@ static u32 update_clock_tree_delay(struct tegra210_em= c *emc, int type) bool dvfs_update =3D type =3D=3D DVFS_UPDATE; s32 tdel =3D 0, tmdel =3D 0, adel =3D 0; bool dvfs_pt1 =3D type =3D=3D DVFS_PT1; + u32 temp[2][2], value, delay_us; unsigned long cval =3D 0; - u32 temp[2][2], value; unsigned int i; =20 + if (dvfs_pt1 || periodic_training_update) { + delay_us =3D tegra210_emc_actual_osc_clocks(last->run_clocks); + delay_us *=3D 1000; + delay_us =3D 2 + (delay_us / last->rate); + + tegra210_emc_start_periodic_compensation(emc); + udelay(delay_us); + } + /* * Dev0 MSB. */ @@ -409,11 +418,6 @@ static u32 periodic_compensation_handler(struct tegra2= 10_emc *emc, u32 type, (nt)->ptfv_list[PTFV_DVFS_SAMPLES_INDEX]; }) =20 u32 i, adel =3D 0, samples =3D next->ptfv_list[PTFV_DVFS_SAMPLES_INDEX]; - u32 delay; - - delay =3D tegra210_emc_actual_osc_clocks(last->run_clocks); - delay *=3D 1000; - delay =3D 2 + (delay / last->rate); =20 if (!next->periodic_training) return 0; @@ -447,9 +451,6 @@ static u32 periodic_compensation_handler(struct tegra21= 0_emc *emc, u32 type, __MOVAVG(next, C1D1U1) =3D 0; =20 for (i =3D 0; i < samples; i++) { - tegra210_emc_start_periodic_compensation(emc); - udelay(delay); - /* * Generate next sample of data. */ @@ -465,12 +466,8 @@ static u32 periodic_compensation_handler(struct tegra2= 10_emc *emc, u32 type, adel =3D update_clock_tree_delay(emc, DVFS_UPDATE); } =20 - if (type =3D=3D PERIODIC_TRAINING_SEQUENCE) { - tegra210_emc_start_periodic_compensation(emc); - udelay(delay); - + if (type =3D=3D PERIODIC_TRAINING_SEQUENCE) adel =3D update_clock_tree_delay(emc, PERIODIC_TRAINING_UPDATE); - } =20 return adel; } --=20 2.44.0