From patchwork Mon Dec 30 07:41:00 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Ramuthevar,Vadivel MuruganX" X-Patchwork-Id: 11312675 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 60417109A for ; Mon, 30 Dec 2019 07:41:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3BBAB20748 for ; Mon, 30 Dec 2019 07:41:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727162AbfL3HlH (ORCPT ); Mon, 30 Dec 2019 02:41:07 -0500 Received: from mga05.intel.com ([192.55.52.43]:48823 "EHLO mga05.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727161AbfL3HlH (ORCPT ); Mon, 30 Dec 2019 02:41:07 -0500 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga105.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 29 Dec 2019 23:41:07 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.69,374,1571727600"; d="scan'208";a="221072230" Received: from sgsxdev004.isng.intel.com (HELO localhost) ([10.226.88.13]) by orsmga003.jf.intel.com with ESMTP; 29 Dec 2019 23:41:04 -0800 From: "Ramuthevar,Vadivel MuruganX" To: broonie@kernel.org, vigneshr@ti.com, linux-spi@vger.kernel.org, linux-kernel@vger.kernel.org Cc: robh+dt@kernel.org, dan.carpenter@oracle.com, cheol.yong.kim@intel.com, qi-ming.wu@intel.com, "Ramuthevar,Vadivel MuruganX" Subject: [PATCH v6 0/2] spi: cadence-quadpsi: Add support for the Cadence QSPI controller Date: Mon, 30 Dec 2019 15:41:00 +0800 Message-Id: <20191230074102.50982-1-vadivel.muruganx.ramuthevar@linux.intel.com> X-Mailer: git-send-email 2.11.0 Sender: linux-spi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org Add support for the Cadence QSPI controller. This controller is present in the Intel Lightning Mountain(LGM) SoCs, Altera and TI SoCs. This driver has been tested on the Intel LGM SoCs. This driver does not support generic SPI and also the implementation only supports spi-mem interface to replace the existing driver in mtd/spi-nor/cadence-quadspi.c, the existing driver only support SPI-NOR flash memory. Thank you Vignesh for the valuable review comments and guidance, sorry for the delay since waitting for the merge window to rebase and send it now by one-shot. changes from v5: -- kbuild test robot warnings fixed -- Add Reported-By: Dan Carpenter changes from v4: -- kbuild test robot warnings fixed -- Add Reborted-by: tag changes from v3: spi-cadence-quadspi.c -- static to all functions wrt to local to the file. -- Prefix cqspi_ and make the function static -- cmd_ops, data_ops and dummy_ops dropped -- addr_ops kept since it is required for address calculation. -- devm_ used for supported functions , removed legacy API's -- removed "indirect" name from functions -- replaced by master->mode_bits = SPI_RX_QUAD | SPI_TX_DUAL | SPI_RX_DUAL | SPI_RX_OCTAL; as per Vignesh susggestion -- removed free functions since devm_ handles automatically. -- dropped all unused Macros YAML file update: -- cadence,qspi.yaml file name replace by cdns,qspi-nor.yaml -- compatible string updated as per Vignesh suggestion -- for single entry, removed descriptions -- removed optional parameters Build Result: linux$ make DT_SCHEMA_FILES=Documentation/devicetree/bindings/spi/cdns,qspi-nor.yaml dt_binding_check CHKDT Documentation/devicetree/bindings/spi/cdns,qspi-nor.yaml SCHEMA Documentation/devicetree/bindings/processed-schema.yaml DTC Documentation/devicetree/bindings/spi/cdns,qspi-nor.example.dt.yaml CHECK Documentation/devicetree/bindings/spi/cdns,qspi-nor.example.dt.yaml Ramuthevar Vadivel Murugan (2): dt-bindings: spi: Add schema for Cadence QSPI Controller driver spi: cadence-quadpsi: Add support for the Cadence QSPI controller .../devicetree/bindings/spi/cdns,qspi-nor.yaml | 147 +++ drivers/spi/Kconfig | 8 + drivers/spi/Makefile | 1 + drivers/spi/spi-cadence-quadspi.c | 1175 ++++++++++++++++++++ drivers/spi/spi-cadence-quadspi.h | 245 ++++ 5 files changed, 1576 insertions(+) create mode 100644 Documentation/devicetree/bindings/spi/cdns,qspi-nor.yaml create mode 100644 drivers/spi/spi-cadence-quadspi.c create mode 100644 drivers/spi/spi-cadence-quadspi.h base-commit: c52db0e2f5ec0e5e196fe0045621dcb0141bf90f