From patchwork Mon Dec 12 18:07:28 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sudip Mukherjee X-Patchwork-Id: 634147 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 7D7A8C00145 for ; Mon, 12 Dec 2022 18:09:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233064AbiLLSJ3 (ORCPT ); Mon, 12 Dec 2022 13:09:29 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34380 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233304AbiLLSIX (ORCPT ); Mon, 12 Dec 2022 13:08:23 -0500 Received: from mail-wm1-x331.google.com (mail-wm1-x331.google.com [IPv6:2a00:1450:4864:20::331]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2566063B1 for ; Mon, 12 Dec 2022 10:07:52 -0800 (PST) Received: by mail-wm1-x331.google.com with SMTP id k22-20020a05600c1c9600b003d1ee3a6289so5940943wms.2 for ; Mon, 12 Dec 2022 10:07:52 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sifive.com; s=google; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=mtPRqcnGnMJu3Lhjzyyt2cKQspWuIhSj33OJnrwCIF0=; b=dic+olsWhbv9Bdud+svAQHzZHug2lLj+vz7hVn19EyP7/8WryNdN+/Ac8gMCuGBZkU uYZwRo2TdqRr2c8T+9GTVOsdjr0TIK2krifSwPPBfojcXy38wrxCPtFgvLg/NfY76g7t 8e/XIrRELDolos2n0GIeUN65WLoTfz2BkcpPlxs4fH3aWc+6fg+1UfhgDt9k/sQzXX/3 qDcadSlnFCH7ygbGyjKNYFi0sxiqgIedHIgUjC5yA/Lw30AVOO8CAwWFHHIdo+IZigWT xbofJbDupAmmm8nls29Ol+1RZQDApqRklwcZZfKdp63b9my0f4ojm9npEEgof4KOHjHi lwzg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=mtPRqcnGnMJu3Lhjzyyt2cKQspWuIhSj33OJnrwCIF0=; b=3fG1O/A3Rig7/NIrqXWghDYW+B0k/duJxIEdFf7JlLmnnC7/U5Bv8aihX3zdcfWni7 aAGRnBtLoq8OzSHx6HEjomLdoIcV/JOYDzrZ+2dvlOZyVT2Sc2usAtDNrOaVBYuNiEf3 UHKHFkioHPSbOgTnFEHwKiITfotpcYyQCKo8NOqucdfwD9HkXK0HMxg/BilEY9KTE9EX PlWEksVUlVQ0gLi0C/azeJUC2az47/WSJI54zQrxLHE4qJRV9O9ewsXaK0Dq7OBORyQs fgoe75YXrc5jgC6WS3oAI74ysmhr6VuM+jYMPI+eFbmy1G9lyNnSgu6TV7r4W98i+g0A WF9w== X-Gm-Message-State: ANoB5plG8rgdarpc6RBSEDxvPub06gfTHV5rsv83SKguyztmDnPwLSwa wd9++bAIA1h+mKYHFDLUWEXEMA== X-Google-Smtp-Source: AA0mqf6hJ3IGjFjKWW73Q+nkmeBNJDk+Q5JFDed1oLgVWBz52c2xQhXA5zTJWbzF7FiPmgqIn8pC9w== X-Received: by 2002:a05:600c:4147:b0:3d2:2904:dfe9 with SMTP id h7-20020a05600c414700b003d22904dfe9mr2396260wmm.21.1670868471634; Mon, 12 Dec 2022 10:07:51 -0800 (PST) Received: from localhost.localdomain (host-78-150-37-98.as13285.net. [78.150.37.98]) by smtp.gmail.com with ESMTPSA id t123-20020a1c4681000000b003a3170a7af9sm10156808wma.4.2022.12.12.10.07.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 12 Dec 2022 10:07:51 -0800 (PST) From: Sudip Mukherjee To: Serge Semin , Mark Brown , Rob Herring , Krzysztof Kozlowski Cc: jude.onyenegecha@sifive.com, ben.dooks@sifive.com, jeegar.lakhani@sifive.com, linux-spi@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Sudip Mukherjee Subject: [PATCH v2 11/15] spi: dw: adjust size of mem_op Date: Mon, 12 Dec 2022 18:07:28 +0000 Message-Id: <20221212180732.79167-12-sudip.mukherjee@sifive.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20221212180732.79167-1-sudip.mukherjee@sifive.com> References: <20221212180732.79167-1-sudip.mukherjee@sifive.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org In enhanced mode adjust the size of the data that can be sent or received as this will then be used to set the NDF. Signed-off-by: Sudip Mukherjee --- drivers/spi/spi-dw-core.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/spi/spi-dw-core.c b/drivers/spi/spi-dw-core.c index 75f5ce5f377ca..dff7b419af304 100644 --- a/drivers/spi/spi-dw-core.c +++ b/drivers/spi/spi-dw-core.c @@ -546,6 +546,13 @@ static void dw_spi_handle_err(struct spi_controller *master, dw_spi_reset_chip(dws); } +static int dw_spi_adjust_enh_mem_op_size(struct spi_mem *mem, struct spi_mem_op *op) +{ + op->data.nbytes = clamp_val(op->data.nbytes, 0, DW_SPI_NDF_MASK + 1); + + return 0; +} + static int dw_spi_adjust_mem_op_size(struct spi_mem *mem, struct spi_mem_op *op) { if (op->data.dir == SPI_MEM_DATA_IN) @@ -997,13 +1004,14 @@ static void dw_spi_init_mem_ops(struct dw_spi *dws) { if (!dws->mem_ops.exec_op && !(dws->caps & DW_SPI_CAP_CS_OVERRIDE) && !dws->set_cs) { - dws->mem_ops.adjust_op_size = dw_spi_adjust_mem_op_size; if (dws->caps & DW_SPI_CAP_EMODE) { dws->mem_ops.exec_op = dw_spi_exec_enh_mem_op; dws->mem_ops.supports_op = dw_spi_supports_enh_mem_op; + dws->mem_ops.adjust_op_size = dw_spi_adjust_enh_mem_op_size; } else { dws->mem_ops.exec_op = dw_spi_exec_mem_op; dws->mem_ops.supports_op = dw_spi_supports_mem_op; + dws->mem_ops.adjust_op_size = dw_spi_adjust_mem_op_size; } if (!dws->max_mem_freq) dws->max_mem_freq = dws->max_freq;