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 X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 003A9C433EF for ; Wed, 22 Sep 2021 10:31:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DA95160F4B for ; Wed, 22 Sep 2021 10:31:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234983AbhIVKdZ (ORCPT ); Wed, 22 Sep 2021 06:33:25 -0400 Received: from twspam01.aspeedtech.com ([211.20.114.71]:33714 "EHLO twspam01.aspeedtech.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234987AbhIVKdU (ORCPT ); Wed, 22 Sep 2021 06:33:20 -0400 Received: from mail.aspeedtech.com ([192.168.0.24]) by twspam01.aspeedtech.com with ESMTP id 18MAB8JN012566; Wed, 22 Sep 2021 18:11:08 +0800 (GMT-8) (envelope-from chin-ting_kuo@aspeedtech.com) Received: from localhost.localdomain (192.168.10.9) by TWMBX02.aspeed.com (192.168.0.24) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Wed, 22 Sep 2021 18:31:26 +0800 From: Chin-Ting Kuo To: , , , , , , , , , , , , CC: , Subject: [PATCH 04/10] mmc: Add invert flag for clock phase signedness Date: Wed, 22 Sep 2021 18:31:10 +0800 Message-ID: <20210922103116.30652-5-chin-ting_kuo@aspeedtech.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210922103116.30652-1-chin-ting_kuo@aspeedtech.com> References: <20210922103116.30652-1-chin-ting_kuo@aspeedtech.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [192.168.10.9] X-ClientProxiedBy: TWMBX02.aspeed.com (192.168.0.24) To TWMBX02.aspeed.com (192.168.0.24) X-DNSRBL: X-MAIL: twspam01.aspeedtech.com 18MAB8JN012566 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The clock phase degree may be between -360 to 360. If the data signal is leading to the clock, the signedness of clock phase is postive, otherwise, the signedness is negative. Signed-off-by: Chin-Ting Kuo --- drivers/mmc/core/host.c | 10 ++++++---- include/linux/mmc/host.h | 2 ++ 2 files changed, 8 insertions(+), 4 deletions(-) diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c index d4683b1d263f..c2de7cbc7838 100644 --- a/drivers/mmc/core/host.c +++ b/drivers/mmc/core/host.c @@ -214,14 +214,16 @@ static void mmc_retune_timer(struct timer_list *t) static void mmc_of_parse_timing_phase(struct device *dev, const char *prop, struct mmc_clk_phase *phase) { - int degrees[2] = {0}; + int degrees[4] = {0}; int rc; - rc = device_property_read_u32_array(dev, prop, degrees, 2); + rc = device_property_read_u32_array(dev, prop, degrees, 4); phase->valid = !rc; if (phase->valid) { - phase->in_deg = degrees[0]; - phase->out_deg = degrees[1]; + phase->inv_in_deg = degrees[0] ? true : false; + phase->in_deg = degrees[1]; + phase->inv_out_deg = degrees[2] ? true : false; + phase->out_deg = degrees[3]; } } diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h index 0c0c9a0fdf57..3c13010683e0 100644 --- a/include/linux/mmc/host.h +++ b/include/linux/mmc/host.h @@ -82,7 +82,9 @@ struct mmc_ios { struct mmc_clk_phase { bool valid; + bool inv_in_deg; u16 in_deg; + bool inv_out_deg; u16 out_deg; }; -- 2.17.1