From patchwork Mon Dec 19 14:42:48 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Witold Sadowski X-Patchwork-Id: 13076641 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6EFDAC3DA7D for ; Mon, 19 Dec 2022 14:43:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231952AbiLSOnZ (ORCPT ); Mon, 19 Dec 2022 09:43:25 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45610 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232330AbiLSOnT (ORCPT ); Mon, 19 Dec 2022 09:43:19 -0500 Received: from mx0b-0016f401.pphosted.com (mx0a-0016f401.pphosted.com [67.231.148.174]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7471C2724; Mon, 19 Dec 2022 06:43:18 -0800 (PST) Received: from pps.filterd (m0045849.ppops.net [127.0.0.1]) by mx0a-0016f401.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 2BJ9PqqB009699; Mon, 19 Dec 2022 06:43:11 -0800 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=marvell.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding : content-type; s=pfpt0220; bh=bNCt+fkpc/Qu79iu7Av/HQdZvX6GNRSgI33Hmaf9tbk=; b=Vu6p1ayooMcf0M263SZbV6R1hn/8y5R+Dvn045OfFKdw0MzL5YnZLlaC0OAY+kae57Iv zxCjJDs8NNWnk/3Uc2VUEpaaKNfXZsT6Xv0FqqZeVCZsIpFWaJPf/Jd1Pi/9VO6AGjtQ Zo5dffi30yVch0JNXp5IRKrJMvhGuo/kl4XG46t/JdH9X9Lzg3LyiEo4nOAZgC5DeF4p 4dNkled4SftENn6y/8dJXtpoDgyFRYUwaMd3OFaV7GgJkNIwL3IBfdcUOiP0fueJHfpz NZp8EuAIJvw8WTQAiPivgh1S38t21nC72EmGrjY7G1VN+hqcGT9i6JLaeEwwCEcewNy1 OA== Received: from dc5-exch02.marvell.com ([199.233.59.182]) by mx0a-0016f401.pphosted.com (PPS) with ESMTPS id 3mjnans4hp-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT); Mon, 19 Dec 2022 06:43:11 -0800 Received: from DC5-EXCH02.marvell.com (10.69.176.39) by DC5-EXCH02.marvell.com (10.69.176.39) with Microsoft SMTP Server (TLS) id 15.0.1497.42; Mon, 19 Dec 2022 06:43:10 -0800 Received: from maili.marvell.com (10.69.176.80) by DC5-EXCH02.marvell.com (10.69.176.39) with Microsoft SMTP Server id 15.0.1497.42 via Frontend Transport; Mon, 19 Dec 2022 06:43:10 -0800 Received: from localhost.localdomain (unknown [10.110.150.170]) by maili.marvell.com (Postfix) with ESMTP id D0D1B3F7054; Mon, 19 Dec 2022 06:43:09 -0800 (PST) From: Witold Sadowski To: CC: , , , , , , , , Subject: [PATCH 1/7] spi: cadence: Fix busy cycles calculation Date: Mon, 19 Dec 2022 06:42:48 -0800 Message-ID: <20221219144254.20883-2-wsadowski@marvell.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20221219144254.20883-1-wsadowski@marvell.com> References: <20221219144254.20883-1-wsadowski@marvell.com> MIME-Version: 1.0 X-Proofpoint-GUID: RJBcxMAiMp0CF9OQrHHxf7Q3lxKWlFsm X-Proofpoint-ORIG-GUID: RJBcxMAiMp0CF9OQrHHxf7Q3lxKWlFsm X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.923,Hydra:6.0.545,FMLib:17.11.122.1 definitions=2022-12-19_01,2022-12-15_02,2022-06-22_01 Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org If xSPI is in x2/x4/x8 mode to calculate busy cycles, busy bits count must be divided by the number of lanes. If opcommand is using 8 busy bits, but SPI is in x4 mode, there will be only 2 busy cycles. Signed-off-by: Witold Sadowski Reviewed-by: Chandrakala Chavva Reviewed-by: Sunil Kovvuri Goutham --- drivers/spi/spi-cadence-xspi.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/spi/spi-cadence-xspi.c b/drivers/spi/spi-cadence-xspi.c index 520b4cc69cdc..91db3c973167 100644 --- a/drivers/spi/spi-cadence-xspi.c +++ b/drivers/spi/spi-cadence-xspi.c @@ -177,7 +177,10 @@ #define CDNS_XSPI_CMD_FLD_DSEQ_CMD_3(op) ( \ FIELD_PREP(CDNS_XSPI_CMD_DSEQ_R3_DCNT_H, \ ((op)->data.nbytes >> 16) & 0xffff) | \ - FIELD_PREP(CDNS_XSPI_CMD_DSEQ_R3_NUM_OF_DUMMY, (op)->dummy.nbytes * 8)) + FIELD_PREP(CDNS_XSPI_CMD_DSEQ_R3_NUM_OF_DUMMY, \ + (op)->dummy.buswidth != 0 ? \ + (((op)->dummy.nbytes * 8) / (op)->dummy.buswidth) : \ + 0)) #define CDNS_XSPI_CMD_FLD_DSEQ_CMD_4(op, chipsel) ( \ FIELD_PREP(CDNS_XSPI_CMD_DSEQ_R4_BANK, chipsel) | \