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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 67E18EB64DC for ; Tue, 11 Jul 2023 08:43:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:References:MIME-Version:Message-ID:Date :Subject:In-Reply-To:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=ZcYOTWa2yv6O4oqt9VgYLqx3Fjxq7N03jWCfhk2Cqow=; b=eFFSQ3VP6Yvlc5 0NOMI9ZlVh8eKStA7bmFg4vWh9vkUcIQ0NLgc2fDj2FpEzYxlWkJftFqaHUSScN986h5NmL5B3OGU IY6yvxWJL/py22KUytF5wICg40LVwGVpD/ZmFM2Za0ZL3uNd1uImnq/PSr15TIrYNM8M9EVtJHkX0 nR94iV8Izigbtz2VLYmiEBL4JcQJC6VIga5V62TN5mzA3fv0+MEq3qASI0HX/9w2hSvSj2PrD1opy R+0ViFWbrzw0SlTTowNyeR/uVehQTwgotJgfMAsFREqO5/geAC6EmXBDIZrTSQTD3+7kzLEtimxoQ awSnd/RsEFnGOSrXsZ2A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qJ8xr-00E9TQ-0Q; Tue, 11 Jul 2023 08:43:19 +0000 Received: from mailout2.samsung.com ([203.254.224.25]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qJ8xn-00E9Sj-1B for linux-arm-kernel@lists.infradead.org; Tue, 11 Jul 2023 08:43:17 +0000 Received: from epcas2p2.samsung.com (unknown [182.195.41.54]) by mailout2.samsung.com (KnoxPortal) with ESMTP id 20230711084311epoutp02bec3fface93e8b5a24ee1c8d6d8054a7~ww6kQXGXt2415424154epoutp02a for ; Tue, 11 Jul 2023 08:43:11 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 mailout2.samsung.com 20230711084311epoutp02bec3fface93e8b5a24ee1c8d6d8054a7~ww6kQXGXt2415424154epoutp02a DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=samsung.com; s=mail20170921; t=1689064991; bh=/fo5+GPfSG58Ft64sKkgPC9cdBMfwnfIvD5VK2E1I+E=; h=From:To:Cc:In-Reply-To:Subject:Date:References:From; b=hMaz91PY1oTKd33fD/TmAVRffTkjWE6DOw1LwuiNbQeR60QnW0usTdrcr7Kg7uvyf uvxohSfPufeUlCVgZo9aHW7VQVwNR00LLHzbKHyz7JDMqMk++28TVHY+JtI8fM82Ef GnYX42V+xl+NDvJc3FxNyOXspSua++ewtc7nxTmg= Received: from epsnrtp4.localdomain (unknown [182.195.42.165]) by epcas2p4.samsung.com (KnoxPortal) with ESMTP id 20230711084310epcas2p4af0e5b0e002805c13b46f17428b55d53~ww6j07nTW2825128251epcas2p4t; Tue, 11 Jul 2023 08:43:10 +0000 (GMT) Received: from epsmgec2p1.samsung.com (unknown [182.195.36.89]) by epsnrtp4.localdomain (Postfix) with ESMTP id 4R0ZC16sB8z4x9QB; Tue, 11 Jul 2023 08:43:09 +0000 (GMT) Received: from epcas2p1.samsung.com ( [182.195.41.53]) by epsmgec2p1.samsung.com (Symantec Messaging Gateway) with SMTP id 56.23.55279.D161DA46; Tue, 11 Jul 2023 17:43:09 +0900 (KST) Received: from epsmtrp1.samsung.com (unknown [182.195.40.13]) by epcas2p1.samsung.com (KnoxPortal) with ESMTPA id 20230711084309epcas2p1073b2e64f19ef1452c08455c56d249c0~ww6imu7ll1882518825epcas2p1a; Tue, 11 Jul 2023 08:43:09 +0000 (GMT) Received: from epsmgms1p2new.samsung.com (unknown [182.195.42.42]) by epsmtrp1.samsung.com (KnoxPortal) with ESMTP id 20230711084309epsmtrp12fa05f4a130540fef089dd1ce14fe771~ww6il0ghY1777917779epsmtrp1K; Tue, 11 Jul 2023 08:43:09 +0000 (GMT) X-AuditID: b6c32a43-2f3ff7000001d7ef-7b-64ad161d0ac7 Received: from epsmtip1.samsung.com ( [182.195.34.30]) by epsmgms1p2new.samsung.com (Symantec Messaging Gateway) with SMTP id F5.79.30535.D161DA46; Tue, 11 Jul 2023 17:43:09 +0900 (KST) Received: from KORCO082417 (unknown [75.12.40.192]) by epsmtip1.samsung.com (KnoxPortal) with ESMTPA id 20230711084309epsmtip182e2372e0e727cb95d224865deaab978~ww6iZg_4I1142811428epsmtip1J; Tue, 11 Jul 2023 08:43:09 +0000 (GMT) From: "Chanho Park" To: "'Jaewon Kim'" , "'Andi Shyti'" , "'Mark Brown'" , "'Krzysztof Kozlowski'" , "'Alim Akhtar'" Cc: , , , In-Reply-To: <20230711082020.138165-1-jaewon02.kim@samsung.com> Subject: RE: [PATCH] spi: s3c64xx: clear loopback bit after loopback test Date: Tue, 11 Jul 2023 17:43:08 +0900 Message-ID: <000001d9b3d3$b81deaa0$2859bfe0$@samsung.com> MIME-Version: 1.0 X-Mailer: Microsoft Outlook 16.0 Thread-Index: AQKEB9fWRKMuuBMGwH0DXsDDFTgnuwG1Aiv/rlHuGMA= Content-Language: ko X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFprHJsWRmVeSWpSXmKPExsWy7bCmqa6s2NoUg5YvhhYP5m1js7j/tYPR YurDJ2wWOxqOsFrsfb2V3WLT42usFpd3zWGzmHF+H5NF48eb7A6cHptWdbJ53Lm2h81j85J6 j74tqxg9Pm+SC2CNyrbJSE1MSS1SSM1Lzk/JzEu3VfIOjneONzUzMNQ1tLQwV1LIS8xNtVVy 8QnQdcvMAbpHSaEsMacUKBSQWFyspG9nU5RfWpKqkJFfXGKrlFqQklNgXqBXnJhbXJqXrpeX WmJlaGBgZApUmJCdsft9F3PBZ96Kh//4Gxivc3cxcnJICJhInJn8mKmLkYtDSGAHo8T9jm4o 5xOjxJ6+NVDON0aJHa1LGGFadh56ywyR2Msosf3jf6iqF4wS/YfesoFUsQnoS7zs2MYKkhAR eMoo8XPqV7AWZoE+RollXxvAqjgF7CVW7foDZgsLeEpcW9bP3sXIwcEioCox/04GiMkrYClx d0EwSAWvgKDEyZlPWEBsZgF5ie1v5zBDXKQg8fPpMlYQW0TASmLDE5AfQGpEJGZ3toGtlRBY ySGx/s5TFpCZEgIuEvtuc0H0Cku8Or6FHcKWknjZ38YOUVIusWNZEkRrC6NEc9seqF32Ej9u TmEFqWEW0JRYv0sfolxZ4sgtqMv4JDoO/4WawivR0SYE0agucWD7dBYIW1aie85n1gmMSrOQ /DULyV+zkNw/C2HXAkaWVYxiqQXFuempyUYFhvCoTs7P3cQITqhazjsYr8z/p3eIkYmD8RCj BAezkghvwcFVKUK8KYmVValF+fFFpTmpxYcYTYHhPJFZSjQ5H5jS80riDU0sDUzMzAzNjUwN zJXEee+1zk0REkhPLEnNTk0tSC2C6WPi4JRqYLLubcx+6MZcu/8cx8Etf99cY21aIfD0S0WR 7e/rB556Ks6ZeeFVR94DCQ6f3rdaAmdtequ40ut7nU6/fiS3/ZlUtLbAjBevv3F+6TgVp3Rw OuO1yOOGHc3Wz8LK6nK+sStGHPyQP6UsULDH8VW6mzybh4Pd69/3ZH6/vKahebpQev2WfXPT tZsf6H0SvDAvo3vd2qOT4rL45//wWf3x67+PE6vNhf9M1378NVdkFZeJWdfc+Bmn080+797y fwJj781WYaep//Jie5OLpcKK7J9P5hOW9exZbO61PXHxAuZLnUfkX0/mrj9uFLpvsdDdHvsr R1c0flS3c+e/+bGY50Lay9lnLBflcR8JN82MalJiKc5INNRiLipOBACo1rELMQQAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFupmkeLIzCtJLcpLzFFi42LZdlhJTldWbG2Kwdd9ghYP5m1js7j/tYPR YurDJ2wWOxqOsFrsfb2V3WLT42usFpd3zWGzmHF+H5NF48eb7A6cHptWdbJ53Lm2h81j85J6 j74tqxg9Pm+SC2CN4rJJSc3JLEst0rdL4MrY/b6LueAzb8XDf/wNjNe5uxg5OSQETCR2HnrL 3MXIxSEksJtRouPyHmaIhKzEs3c72CFsYYn7LUdYIYqeMUq0PD4LlmAT0Jd42bENLCEi8JxR YvKr8+wgDrPAJEaJc4sfM4FUCQlMYJS4taoaxOYUsJdYtesPG4gtLOApcW1ZP1ADBweLgKrE /DsZICavgKXE3QXBIBW8AoISJ2c+YQGxmQW0JZ7efAply0tsfzsH6lAFiZ9Pl7GC2CICVhIb nnQzQdSISMzubGOewCg8C8moWUhGzUIyahaSlgWMLKsYJVMLinPTc4sNC4zyUsv1ihNzi0vz 0vWS83M3MYLjS0trB+OeVR/0DjEycTAeYpTgYFYS4S04uCpFiDclsbIqtSg/vqg0J7X4EKM0 B4uSOO+3170pQgLpiSWp2ampBalFMFkmDk6pBqbWHRu+NxRmanQeS2SZPXdK9LaMWaybavak NqxU3d0/Mc0pXe1/y9NItbd9cyY+36lsJP3tZHxfxb/XF+ema59Zktg3a/EzTR9jr8nKicUC VxX1GqRSAv4FHIrd6h64bN+jnbKGzWW7DpaxvdA6ar6D+8Zp7gORrToVJj3L54RLRdrvtA18 +clCa4+lZehKb3VT2RK+RRuu39DMDq3dc+B6t8z76kv5F+5mfqmy+11eaM4299aR8wUGTR1X ks45s5kn6b/98Sb56rSrD3xD1i2f6PzzkaP1CQHzhxVTn39feiVy6nfjNN9r7EfKA8P5H8Q8 O+/7auG7s66v9Y/8EykIDW4WMFmQ6hA1h6XprqgSS3FGoqEWc1FxIgDIe2GRHgMAAA== X-CMS-MailID: 20230711084309epcas2p1073b2e64f19ef1452c08455c56d249c0 X-Msg-Generator: CA X-Sendblock-Type: AUTO_CONFIDENTIAL CMS-TYPE: 102P DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20230711082508epcas2p3088d488035e7e2910bf087d640e9c268 References: <20230711082020.138165-1-jaewon02.kim@samsung.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230711_014315_865278_8E2CD8DC X-CRM114-Status: GOOD ( 20.44 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi Jaewon, > -----Original Message----- > From: Jaewon Kim > Sent: Tuesday, July 11, 2023 5:20 PM > To: Andi Shyti ; Mark Brown ; > Krzysztof Kozlowski ; 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] spi: s3c64xx: clear loopback bit after loopback test > > When SPI loopback transfer is performed, S3C64XX_SPI_MODE_SELF_LOOPBACK > bit still remained. It works as loopback even if the next transfer is not > spi loopback mode. > If not SPI_LOOP, needs to clear S3C64XX_SPI_MODE_SELF_LOOPBACK bit. > In order for this patch to be sent to the stable tree, below tag is required. Fixes: ffb7bcd3b27e ("spi: s3c64xx: support loopback mode") Otherwise, looks good to me. Reviewed-by: Chanho Park Best Regards, Chanho Park > Signed-off-by: Jaewon Kim > --- > drivers/spi/spi-s3c64xx.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c index > fd55697144cc..b6c2659a66ca 100644 > --- a/drivers/spi/spi-s3c64xx.c > +++ b/drivers/spi/spi-s3c64xx.c > @@ -684,6 +684,8 @@ static int s3c64xx_spi_config(struct > s3c64xx_spi_driver_data *sdd) > > if ((sdd->cur_mode & SPI_LOOP) && sdd->port_conf->has_loopback) > val |= S3C64XX_SPI_MODE_SELF_LOOPBACK; > + else > + val &= ~S3C64XX_SPI_MODE_SELF_LOOPBACK; > > writel(val, regs + S3C64XX_SPI_MODE_CFG); > > -- > 2.17.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel