From patchwork Wed Jul 11 14:01:28 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aapo Vienamo X-Patchwork-Id: 942503 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-tegra-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=nvidia.com Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 41Qgk72K48z9s01 for ; Thu, 12 Jul 2018 00:02:23 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388386AbeGKOGZ (ORCPT ); Wed, 11 Jul 2018 10:06:25 -0400 Received: from hqemgate14.nvidia.com ([216.228.121.143]:5373 "EHLO hqemgate14.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387708AbeGKOGY (ORCPT ); Wed, 11 Jul 2018 10:06:24 -0400 Received: from hqpgpgate101.nvidia.com (Not Verified[216.228.121.13]) by hqemgate14.nvidia.com (using TLS: TLSv1, AES128-SHA) id ; Wed, 11 Jul 2018 07:01:51 -0700 Received: from HQMAIL101.nvidia.com ([172.20.161.6]) by hqpgpgate101.nvidia.com (PGP Universal service); Wed, 11 Jul 2018 07:01:54 -0700 X-PGP-Universal: processed; by hqpgpgate101.nvidia.com on Wed, 11 Jul 2018 07:01:54 -0700 Received: from dhcp-10-21-25-168.Nvidia.com (10.21.25.201) by HQMAIL101.nvidia.com (172.20.187.10) with Microsoft SMTP Server (TLS) id 15.0.1347.2; Wed, 11 Jul 2018 14:01:51 +0000 From: Aapo Vienamo To: Rob Herring , Mark Rutland , Thierry Reding , Jonathan Hunter , Mikko Perttunen CC: Aapo Vienamo , , , Subject: [PATCH v2 2/7] soc/tegra: pmc: Factor out DPD register bit calculation Date: Wed, 11 Jul 2018 17:01:28 +0300 Message-ID: <1531317693-3520-3-git-send-email-avienamo@nvidia.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1531317693-3520-1-git-send-email-avienamo@nvidia.com> References: <1531317693-3520-1-git-send-email-avienamo@nvidia.com> X-NVConfidentiality: public MIME-Version: 1.0 X-Originating-IP: [10.21.25.201] X-ClientProxiedBy: UKMAIL102.nvidia.com (10.26.138.15) To HQMAIL101.nvidia.com (172.20.187.10) Sender: linux-tegra-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-tegra@vger.kernel.org Factor out the the code to calculate the correct DPD register and bit number for a given pad. This logic will be needed to query the status register. Signed-off-by: Aapo Vienamo Acked-by: Jon Hunter --- drivers/soc/tegra/pmc.c | 20 +++++++++++++++++--- 1 file changed, 17 insertions(+), 3 deletions(-) diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c index f926332..393ca72 100644 --- a/drivers/soc/tegra/pmc.c +++ b/drivers/soc/tegra/pmc.c @@ -922,11 +922,12 @@ tegra_io_pad_find(struct tegra_pmc *pmc, enum tegra_io_pad id) return NULL; } -static int tegra_io_pad_prepare(enum tegra_io_pad id, unsigned long *request, - unsigned long *status, u32 *mask) +static int tegra_io_pad_get_dpd_register_bit(enum tegra_io_pad id, + unsigned long *request, + unsigned long *status, + u32 *mask) { const struct tegra_io_pad_soc *pad; - unsigned long rate, value; pad = tegra_io_pad_find(pmc, id); if (!pad) { @@ -947,6 +948,19 @@ static int tegra_io_pad_prepare(enum tegra_io_pad id, unsigned long *request, *request = pmc->soc->regs->dpd2_req; } + return 0; +} + +static int tegra_io_pad_prepare(enum tegra_io_pad id, unsigned long *request, + unsigned long *status, u32 *mask) +{ + unsigned long rate, value; + int err; + + err = tegra_io_pad_get_dpd_register_bit(id, request, status, mask); + if (err) + return err; + if (pmc->clk) { rate = clk_get_rate(pmc->clk); if (!rate) {