From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from BL0PR03CU003.outbound.protection.outlook.com (mail-eastusazon11012012.outbound.protection.outlook.com [52.101.53.12]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1D362453482; Wed, 27 May 2026 17:56:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=52.101.53.12 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779904581; cv=fail; b=hNkwsNhNBAmJ3Mkpkmq1xvF9i0L9RHZOo/usjBFpaf36e8BgMo4P9LXQ729OIqRwvWCoSays2X75DI2OxB+I/xtli/gJMjwsdL31/YHC4s+jK/S5ASv8ozpBlq/xY4SsAwai4WtqaGh2oDTxLUGj714s08KmmLiasbx/oQc3fmU= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779904581; c=relaxed/simple; bh=jw3B9yi+hmX7DsJIwVzasLjy4Zy1mAqhau2w2IMS3zQ=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=qMeU4MNj4kFSzE83LVwNET85tDMf1EHLGS1ofUec+EimjjmLVoakL1ju8zS9n27CtklIn5uJlHRoGWBfUw+sezRiAvUOVxSJLcaaDjDbOxOO7TuB/A1LLrSmLp6W+fMLZzb3KKgU4LUr3/IYvzsUgmIsiS+nqE4N+HQEjPA7Biw= ARC-Authentication-Results:i=2; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=ti.com; spf=pass smtp.mailfrom=ti.com; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b=Vf/wyarM; arc=fail smtp.client-ip=52.101.53.12 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=ti.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ti.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="Vf/wyarM" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=aGPYa4urTMhKgSE+UDo5IkB2Zj2mgA8yITBhO54K5BLWbN7rOiaHJEV4bnJXkjVkU5tdbzK9MSYX1FiIieytGbYv+/T7owFtY36NM2ZLUwEUunM5JmZentWc+9QR6+AhCBCoJL2leyren39Kj2pj3sUVayKm8nss2VwAePUaFiW6Y6cjl76GNYOEUW2aXbkbjOjDh+jGF7o6MMYbyysn3nsv4V3qHW6sd7eVy0bLbP4zb8oUjLR8cL4EvLcEvc7xnmAJKwBpn94OMjTXEbiACOpSOB1DGzNPEMHLOse3M+S5eP0js3RI5jNiPx2/IBgAuAYWIYmWmrNTEp5ki4Jn0w== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=wCZc0wIVBtDCh1p0IprYueCIB6QFm2p/C8s4JQKghv4=; b=mFWk0xx6s+8jxWNtzcHG/xfAAT0KHY7zd5xu7+1KfkLm5Bv+qpVlkKdAKicbyJ7wK3kclMMzLrTTyKSYgI6JNu7y10xcPdoDB0eWzZq7+4fpeL4Ov3gjWJWt+GhpKoMSfSovLuyE7QJTS2XyUfM77P19COB/anQQJzS7cIC4ox4x77EstoVL7igp8k6MM4JViEI2oeBEkICzfx+6zvb04UZGJNmvWlYAryes+u1WGJqO8fsCVnOtydrqSzqAvFFlOBk0pPzg281t+QKeHKzNSbzOFyaCgRNH0+ZJLo881RDSDod+1WwP4/imN+0Bcc0VcrOdMFug2geVckMIt/88+Q== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 198.47.23.195) smtp.rcpttodomain=lists.infradead.org smtp.mailfrom=ti.com; dmarc=pass (p=quarantine sp=none pct=100) action=none header.from=ti.com; dkim=none (message not signed); arc=none (0) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=wCZc0wIVBtDCh1p0IprYueCIB6QFm2p/C8s4JQKghv4=; b=Vf/wyarMeeKLkeES1MpjBffWjlbAVLAl/0pB0k/3pv5gJEUnGNAPp085C8MORyVqRIjYWl3WQx+U4AyEagTmCfUNolegdQZ7fkkEwLb9UMaAu6G+NiiM1yWCBLXYn11r4xkqs1J4zAUB5TxzOEIIyFXpxpa1uAf2CV3lwqNBb2M= Received: from BL1PR13CA0399.namprd13.prod.outlook.com (2603:10b6:208:2c2::14) by CH0PR10MB7499.namprd10.prod.outlook.com (2603:10b6:610:182::9) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.21.71.12; Wed, 27 May 2026 17:56:16 +0000 Received: from BL02EPF0001A104.namprd05.prod.outlook.com (2603:10b6:208:2c2:cafe::45) by BL1PR13CA0399.outlook.office365.com (2603:10b6:208:2c2::14) with Microsoft SMTP Server (version=TLS1_3, cipher=TLS_AES_256_GCM_SHA384) id 15.21.92.4 via Frontend Transport; Wed, 27 May 2026 17:56:16 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 198.47.23.195) smtp.mailfrom=ti.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=ti.com; Received-SPF: Pass (protection.outlook.com: domain of ti.com designates 198.47.23.195 as permitted sender) receiver=protection.outlook.com; client-ip=198.47.23.195; helo=lewvzet201.ext.ti.com; pr=C Received: from lewvzet201.ext.ti.com (198.47.23.195) by BL02EPF0001A104.mail.protection.outlook.com (10.167.241.135) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.21.71.7 via Frontend Transport; Wed, 27 May 2026 17:56:15 +0000 Received: from DLEE208.ent.ti.com (157.170.170.97) by lewvzet201.ext.ti.com (10.4.14.104) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.37; Wed, 27 May 2026 12:56:15 -0500 Received: from DLEE206.ent.ti.com (157.170.170.90) by DLEE208.ent.ti.com (157.170.170.97) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.37; Wed, 27 May 2026 12:56:15 -0500 Received: from lelvem-mr06.itg.ti.com (10.180.75.8) by DLEE206.ent.ti.com (157.170.170.90) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.37 via Frontend Transport; Wed, 27 May 2026 12:56:15 -0500 Received: from santhoshkumark.dhcp.ti.com (santhoshkumark.dhcp.ti.com [172.24.233.254]) by lelvem-mr06.itg.ti.com (8.18.1/8.18.1) with ESMTP id 64RHtYpj4052476; Wed, 27 May 2026 12:56:10 -0500 From: Santhosh Kumar K To: , , , , , , , , , CC: , , , , , , , Subject: [PATCH v3 07/13] spi: cadence-quadspi: add DQS support to read data capture Date: Wed, 27 May 2026 23:25:21 +0530 Message-ID: <20260527175527.2247679-8-s-k6@ti.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260527175527.2247679-1-s-k6@ti.com> References: <20260527175527.2247679-1-s-k6@ti.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-C2ProcessedOrg: 333ef613-75bf-4e12-a4b1-8e3623f5dcea X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BL02EPF0001A104:EE_|CH0PR10MB7499:EE_ X-MS-Office365-Filtering-Correlation-Id: 1bfa5813-ee36-49c0-7eb6-08debc193f97 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|7416014|376014|36860700016|82310400026|1800799024|921020|22082099003|18002099003|56012099006; X-Microsoft-Antispam-Message-Info: ktZxFcILR5khN7Tkxq20pUSwZiBAz6SmmqnMmOS0+9jQWJWaRLtcYqfO+/fsT7e+h3QjFiHCRPcv6S05ivxtMvKexweUeTCYBWFf3wdC3aSe08WeDI4gUvgWYxhhjTtG5pyL7vcrPF13Q2RLbWEsU+vuTccHT26gRQadeS3PwBO5GX5Sf8n8SqJ1KbONJCBt4cAwaTQirBQVW3QcDxtJr+IW7Ka3Y8zvAe2SNWFhhzNNhOO0lBXwHInsjkqQM6YWk49w4EY7psiUTwtP287iqe3p3aDPGYQ5hpfQbTfb7L/r/tQLVpAxEEqUDJVQFcOfmm4oD4MbIA/tzGenpGU86P1FEb1KBXvtYl26mZv7fe/M2GjYF8PR+2X9Ftk2FE/XPze2e8gALKroYMhlDEuagIFPK2SmmimApQ4EVRo7hXxvrA8XCqWNluHHk1itO4BVN2tVk2H5EQ5KN+C42s7H06CCJQpj/1SVb0qllTexEFadFY45ERyHbiQYnPBAvchOtVRMmYbajKWrErzLXPGMcgEykky54Xf53/HbYSwYTRCXXLLXRtFij/aSpqonzs5tmu9GJOlLZIMgMaqv+NdCSyv+XrFop009DcFFHw1CUEwvozgCCKALAqm9UfT/jxrTfQeaF0FlNUgLvQq7bik/4stDhaQnmpMae0T3HEZcA+NCfuuJmOrjx38xD3hmDTvtmxCDxs4qcdaXMz0b/WBYYUrZUcDxdlNWcx84DxV/ZAsAqw/HdmpMIIZM4ayYsMRsMDUBAPwuuWXPRnDudRXhNg== X-Forefront-Antispam-Report: CIP:198.47.23.195;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:lewvzet201.ext.ti.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230040)(7416014)(376014)(36860700016)(82310400026)(1800799024)(921020)(22082099003)(18002099003)(56012099006);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: iaE+IPvLxk/qYPVo7vizfqsg1hUlIA795a4pavZyGLWegiNGNPWKjTtYJmsrih1U6DZpZBsbTeaET/E7tEGi/ORqOTTfOW4PiCLlCy99MhkafnPaqyIpuAfbkfZU3D5r5ZfXAhWwwQOrQEjJFgdGYyFywZADYBGvpcsvYdfeuw21kdBHooZ0dxkGPVxlLUpY3SYb7l9wcjQl8beHp+QSeaJxBAsa2Ew3lIVBZKgGjomU7FExLbeF8BpR53TK/mXYM7yvOsa+qWnKEHcPiiDeTgEFpvBP0r9YQUdaulbpH6EG+/j2Vf+d3ohpOhAVQxUrwws3LmORncoOdR9rY3hGYHRcKL/WrvZYUgBZDbEKvzAKyFrgqZ6StprJMAv8fvjFC2WFF5zArH78itswInklV4vOLVhZwbXCSPKFrvkOOyd1X3iyPJ0UK/ks3BQsfe9T X-OriginatorOrg: ti.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 27 May 2026 17:56:15.8952 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 1bfa5813-ee36-49c0-7eb6-08debc193f97 X-MS-Exchange-CrossTenant-Id: e5b49634-450b-4709-8abb-1e2b19b982b7 X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=e5b49634-450b-4709-8abb-1e2b19b982b7;Ip=[198.47.23.195];Helo=[lewvzet201.ext.ti.com] X-MS-Exchange-CrossTenant-AuthSource: BL02EPF0001A104.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH0PR10MB7499 Add DQS (Data Strobe) parameter to cqspi_readdata_capture() to control data capture timing. DQS mode uses a dedicated strobe signal for improved timing margins in high-speed SPI modes. Reviewed-by: Miquel Raynal Signed-off-by: Santhosh Kumar K --- drivers/spi/spi-cadence-quadspi.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/spi/spi-cadence-quadspi.c b/drivers/spi/spi-cadence-quadspi.c index 54fd7b591e06..201d69c64c49 100644 --- a/drivers/spi/spi-cadence-quadspi.c +++ b/drivers/spi/spi-cadence-quadspi.c @@ -192,6 +192,7 @@ struct cqspi_driver_platdata { #define CQSPI_REG_READCAPTURE_BYPASS_LSB 0 #define CQSPI_REG_READCAPTURE_DELAY_LSB 1 #define CQSPI_REG_READCAPTURE_DELAY_MASK 0xF +#define CQSPI_REG_READCAPTURE_DQS_LSB 8 #define CQSPI_REG_SIZE 0x14 #define CQSPI_REG_SIZE_ADDRESS_LSB 0 @@ -454,7 +455,7 @@ static int cqspi_wait_idle(struct cqspi_st *cqspi) } static void cqspi_readdata_capture(struct cqspi_st *cqspi, const bool bypass, - const unsigned int delay) + const bool dqs, const unsigned int delay) { void __iomem *reg_base = cqspi->iobase; unsigned int reg; @@ -472,6 +473,11 @@ static void cqspi_readdata_capture(struct cqspi_st *cqspi, const bool bypass, reg |= (delay & CQSPI_REG_READCAPTURE_DELAY_MASK) << CQSPI_REG_READCAPTURE_DELAY_LSB; + if (dqs) + reg |= BIT(CQSPI_REG_READCAPTURE_DQS_LSB); + else + reg &= ~BIT(CQSPI_REG_READCAPTURE_DQS_LSB); + writel(reg, reg_base + CQSPI_REG_READCAPTURE); } @@ -1313,7 +1319,7 @@ static void cqspi_configure(struct cqspi_flash_pdata *f_pdata, cqspi->sclk = sclk; cqspi_config_baudrate_div(cqspi); cqspi_delay(f_pdata); - cqspi_readdata_capture(cqspi, !cqspi->rclk_en, + cqspi_readdata_capture(cqspi, !cqspi->rclk_en, false, f_pdata->read_delay); } -- 2.34.1