From patchwork Tue May 2 06:28:11 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jaewon Kim X-Patchwork-Id: 13228550 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 CC825C77B7E for ; Tue, 2 May 2023 06:50:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229569AbjEBGup (ORCPT ); Tue, 2 May 2023 02:50:45 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54540 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233635AbjEBGul (ORCPT ); Tue, 2 May 2023 02:50:41 -0400 Received: from mailout1.samsung.com (mailout1.samsung.com [203.254.224.24]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F18AB3A9F for ; Mon, 1 May 2023 23:50:30 -0700 (PDT) Received: from epcas2p1.samsung.com (unknown [182.195.41.53]) by mailout1.samsung.com (KnoxPortal) with ESMTP id 20230502065027epoutp012e0a1287b5b5ac947ae5b9a470cf6631~bQOKDS1SH2708627086epoutp01D for ; 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Tue, 2 May 2023 15:50:25 +0900 (KST) Received: from epsmtrp2.samsung.com (unknown [182.195.40.14]) by epcas2p4.samsung.com (KnoxPortal) with ESMTPA id 20230502065025epcas2p4143c8ff3d44b7676ea8667c14618f2cd~bQOIKsCsr1117211172epcas2p4A; Tue, 2 May 2023 06:50:25 +0000 (GMT) Received: from epsmgms1p1new.samsung.com (unknown [182.195.42.41]) by epsmtrp2.samsung.com (KnoxPortal) with ESMTP id 20230502065025epsmtrp200b9f15f59b5d2422a3f2ee79378198c~bQOIJ-j0d2944229442epsmtrp2M; Tue, 2 May 2023 06:50:25 +0000 (GMT) X-AuditID: b6c32a47-e99fd70000002007-fd-6450b2b1a730 Received: from epsmtip1.samsung.com ( [182.195.34.30]) by epsmgms1p1new.samsung.com (Symantec Messaging Gateway) with SMTP id E2.C8.27706.1B2B0546; Tue, 2 May 2023 15:50:25 +0900 (KST) Received: from localhost.localdomain (unknown [10.229.9.55]) by epsmtip1.samsung.com (KnoxPortal) with ESMTPA id 20230502065025epsmtip13f5f5d62791d4d87df09e34b99a140c0~bQOIAexil1675316753epsmtip1U; Tue, 2 May 2023 06:50:25 +0000 (GMT) From: Jaewon Kim To: Krzysztof Kozlowski , Andi Shyti , Mark Brown , Alim Akhtar Cc: linux-spi@vger.kernel.org, linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Chanho Park , Jaewon Kim Subject: [PATCH v3 1/3] spi: s3c64xx: change polling mode to optional Date: Tue, 2 May 2023 15:28:11 +0900 Message-Id: <20230502062813.112434-2-jaewon02.kim@samsung.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20230502062813.112434-1-jaewon02.kim@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrHKsWRmVeSWpSXmKPExsWy7bCmqe7GTQEpBu/maVo8mLeNzWLxj+dM FlMfPmGzuLxf22JHwxFWi72vt7JbbHp8jdXi8q45bBYzzu9jsmj8eJPdgcvj+pJPzB6bVnWy edy5tofNY/OSeo++LasYPT5vkgtgi8q2yUhNTEktUkjNS85PycxLt1XyDo53jjc1MzDUNbS0 MFdSyEvMTbVVcvEJ0HXLzAE6TEmhLDGnFCgUkFhcrKRvZ1OUX1qSqpCRX1xiq5RakJJTYF6g V5yYW1yal66Xl1piZWhgYGQKVJiQndGwZwNzwQq+itlnr7E1MP7i7mLk5JAQMJFYsXotaxcj F4eQwA5GiTnH70E5nxglzv9oZYZwvjFK7H7zggWmZdWtdnaIxF5GiUfL1rGCJIQEPjJKvP/m AmKzCWhLfF+/GGyUiMBiRokFV3eCdTAL3GCU6H6zGWyUsICrxMLrVxhBbBYBVYmG26/A4rwC dhL7L8xkglgnL7F6wwFmEJtTwF7iXlML2FQJgUfsEucu90MVuUi0TvrGCGELS7w6voUdwpaS +PxuLxuEnS3RPv0PK4RdIXFxw2youLHErGftQL0cQNdpSqzfpQ9iSggoSxy5BXYOswCfRMfh v+wQYV6JjjYhiEY1iftTz0ENkZGYdGQl1DEeEgtvdzBCwmQSo8TOm5ITGOVmIcxfwMi4ilEs taA4Nz212KjAGB5jyfm5mxjBCU/LfQfjjLcf9A4xMnEwHmKU4GBWEuH9UOiXIsSbklhZlVqU H19UmpNafIjRFBh0E5mlRJPzgSk3ryTe0MTSwMTMzNDcyNTAXEmcV9r2ZLKQQHpiSWp2ampB ahFMHxMHp1QDk4HDoSJfTtPTl9m/77CvvnhI8O1lFflVuzam/9c3/PzX+tzXBXePyq/t0GLn SVzsUNI3p2Zqsv221LVS0+t2Z0z/+vdl/OubJ4TNr899nB6qcnG54v53MuFGMa91dpqtlJGb sWqm60vhP7b7v3UszswSa4/ktll8evNOdpbsV1Imv1bf0mU3+OR3xE3wv962shPPDBlv393U 0p69veuzfy3/SS+mVFt5h3+cM0t25Nz78knuVdXOGMnmDaXhP6VZzC89zCvUXdPjGP/OzblT 8zxX+Pp2y6n55fVMla8LtK7tNLzGPCMjlPFBp9uSe8mnJr/xV1klt+qah+qqzV+nf+E7ac2p P6XkUrr7e66uNCWW4oxEQy3mouJEAHDLC9wBBAAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrNLMWRmVeSWpSXmKPExsWy7bCSnO7GTQEpBhs3Clo8mLeNzWLxj+dM FlMfPmGzuLxf22JHwxFWi72vt7JbbHp8jdXi8q45bBYzzu9jsmj8eJPdgcvj+pJPzB6bVnWy edy5tofNY/OSeo++LasYPT5vkgtgi+KySUnNySxLLdK3S+DKaNizgblgBV/F7LPX2BoYf3F3 MXJySAiYSKy61c7excjFISSwm1FiZe9lZoiEjMTyZ31sELawxP2WI6wQRe8ZJdo7DrKAJNgE tCW+r18MlhARWMoo8XjPYxYQh1ngHqPEy0nfmECqhAVcJRZev8IIYrMIqEo03H4F1s0rYCex /8JMJogV8hKrNxwAW80pYC9xr6mFFcQWAqq50vuVdQIj3wJGhlWMkqkFxbnpucWGBYZ5qeV6 xYm5xaV56XrJ+bmbGMHhqaW5g3H7qg96hxiZOBgPMUpwMCuJ8H4o9EsR4k1JrKxKLcqPLyrN SS0+xCjNwaIkznuh62S8kEB6YklqdmpqQWoRTJaJg1Oqgalft9y15KivRW9m2J/H6mmXf+re erTjisVv0bDLU9sy/k1zMGu/GpHj///WWqs1d17ez29Lv9ToHxluWmQTVbrm6WTTMvPTIb8T POPzK93vqit4n3v4TZiLl/WvitCiM/F+G/rZbyaJxNUnOth2RO9m3aG01CiEmf+/n1nlFIvp q9MOqpabrcyS+P3TZuoi+2V1kvEpW6/XLJq1R0at51S8Q2rY8r89FrmbRA0THsZM+nMjTM09 OnV3y4ePbzvvv7jmlZe06/RDb5aaiP9yGsc7dsa+ynhwViHwP9OhNsVH9RHqOzaH511ZwR0f sb9tL5cZa9OHPQ8urd78x/BO6m3Tuo/cx3c3Xrq9ZuLtciWW4oxEQy3mouJEAAg5wce+AgAA X-CMS-MailID: 20230502065025epcas2p4143c8ff3d44b7676ea8667c14618f2cd X-Msg-Generator: CA X-Sendblock-Type: AUTO_CONFIDENTIAL CMS-TYPE: 102P DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20230502065025epcas2p4143c8ff3d44b7676ea8667c14618f2cd References: <20230502062813.112434-1-jaewon02.kim@samsung.com> Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org Previously, Polling mode was supported as quirk for SOC without DMA. To provide more flexible support for polling mode, it changed to polling mode when the 'dmas' property is not present in the devicetree, rather than using a quirk. Signed-off-by: Jaewon Kim Reviewed-by: Krzysztof Kozlowski --- drivers/spi/spi-s3c64xx.c | 4 ++-- include/linux/platform_data/spi-s3c64xx.h | 1 + 2 files changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c index 71d324ec9a70..66ac94022a1b 100644 --- a/drivers/spi/spi-s3c64xx.c +++ b/drivers/spi/spi-s3c64xx.c @@ -19,7 +19,6 @@ #include #define MAX_SPI_PORTS 12 -#define S3C64XX_SPI_QUIRK_POLL (1 << 0) #define S3C64XX_SPI_QUIRK_CS_AUTO (1 << 1) #define AUTOSUSPEND_TIMEOUT 2000 @@ -116,7 +115,7 @@ #define S3C64XX_SPI_TRAILCNT S3C64XX_SPI_MAX_TRAILCNT #define msecs_to_loops(t) (loops_per_jiffy / 1000 * HZ * t) -#define is_polling(x) (x->port_conf->quirks & S3C64XX_SPI_QUIRK_POLL) +#define is_polling(x) (x->cntrlr_info->polling) #define RXBUSY (1<<2) #define TXBUSY (1<<3) @@ -1068,6 +1067,7 @@ static struct s3c64xx_spi_info *s3c64xx_spi_parse_dt(struct device *dev) } sci->no_cs = of_property_read_bool(dev->of_node, "no-cs-readback"); + sci->polling = !of_property_present(dev->of_node, "dmas"); return sci; } diff --git a/include/linux/platform_data/spi-s3c64xx.h b/include/linux/platform_data/spi-s3c64xx.h index 5df1ace6d2c9..cb7b8ddc899f 100644 --- a/include/linux/platform_data/spi-s3c64xx.h +++ b/include/linux/platform_data/spi-s3c64xx.h @@ -35,6 +35,7 @@ struct s3c64xx_spi_info { int src_clk_nr; int num_cs; bool no_cs; + bool polling; int (*cfg_gpio)(void); };