From patchwork Tue May 28 09:27:10 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Masahisa Kojima X-Patchwork-Id: 10964449 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id AA60076 for ; Tue, 28 May 2019 09:27:21 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 9AD9428644 for ; Tue, 28 May 2019 09:27:21 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 8E64B2865F; Tue, 28 May 2019 09:27:21 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 33D7D28644 for ; Tue, 28 May 2019 09:27:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726279AbfE1J1U (ORCPT ); Tue, 28 May 2019 05:27:20 -0400 Received: from mail-pg1-f171.google.com ([209.85.215.171]:45007 "EHLO mail-pg1-f171.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726820AbfE1J1U (ORCPT ); Tue, 28 May 2019 05:27:20 -0400 Received: by mail-pg1-f171.google.com with SMTP id n2so10613359pgp.11 for ; Tue, 28 May 2019 02:27:20 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id; bh=CIJVEqaFcuXlG2PmkzFOjP7GqCEMYy6kLdJ7KvantVY=; b=HaS6kgqjX5rJ44z2hupjPtRqolzhnPv6lB1DjjfdQA6eyz0fsz8tF+ymJ+w7k2EV0u ffkqnXm3cHouzYS9k4AGgcO6PZSLA6StcJs4LV9Pq1ukTGZWdzrDH5mijRQbXbgs8+sz JKA8uKs2oXT0v48CBClFu4leJoYaa2MZt6SMelMTQ18wica2swFh5sJVtUZ498IHVPTI xdkMvSOg/p9FzmQJbD/iFZnU0kubsbmaWTA4O/VlJOy22ytVV+yhjFQMgTK2+iZxB9U/ E1NgJhDUGFcb48PNNt4z4ldQIeDeojdvlzKzDJuZyfCLmR3ElxfvTR3eK5FVaNCmJoCt z5jw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=CIJVEqaFcuXlG2PmkzFOjP7GqCEMYy6kLdJ7KvantVY=; b=oFuw50gvX5oy9j7QCywrmtwd74mFJQWNBKoDyJ9qGlDioJqb5Y63uYwTsWJw/8mc/T t0jeATnp4KM3ZxRqq+AzlHIbFFQDiZMXkFq9tvelepyRfxo6JQ3WNLnNNfI+NXtt0eRI qFkrAcYRZ6ALKuUHJLyFkw/LzpJM1bx+3Of5MVAQuSF/XES+NPDTWQEAF0KBCesuIBVv aZkY3sE47sBFLHN+PuiNCoP0MqtPnyPegiN4Ps1daE9+AuYw7DEzNeBTa3FdAYj5uG1R MDS2WVUPby0CRRkeuP6rtvjA1FdeEgi8tOVz9d04ELzlNzsI0BlFjfvKahv95s0IAM0k 3vfw== X-Gm-Message-State: APjAAAVcWx9S/P1SyAeMRYAyFym1O8rtI90xQ5Ifb47FHmdN5M2UuOEr 0XmQapt2UWRRZf0Icpct0acbFBbM987tOg== X-Google-Smtp-Source: APXvYqx2KLxhjurSP8gXezzE05PEVYaAyMc0F9/TCn1hkmQjTedOgSTWEQmiTLWYCR/Wb4Gpd3aQ8w== X-Received: by 2002:a17:90a:25ca:: with SMTP id k68mr4597517pje.14.1559035639416; Tue, 28 May 2019 02:27:19 -0700 (PDT) Received: from localhost ([121.95.100.191]) by smtp.gmail.com with ESMTPSA id u5sm11148161pgp.19.2019.05.28.02.27.18 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Tue, 28 May 2019 02:27:18 -0700 (PDT) From: Masahisa Kojima To: linux-spi@vger.kernel.org, devicetree@vger.kernel.org Cc: broonie@kernel.org, geert@linux-m68k.org, tpiepho@impinj.com, andy.shevchenko@gmail.com, robh+dt@kernel.org, mark.rutland@arm.com, ard.biesheuvel@linaro.org, jaswinder.singh@linaro.org, masami.hiramatsu@linaro.org, okamoto.satoru@socionext.com, osaki.yoshitoyo@socionext.com, Masahisa Kojima Subject: [PATCH v6 0/3] spi: support for Socionext Synquacer platform Date: Tue, 28 May 2019 18:27:10 +0900 Message-Id: <20190528092713.10516-1-masahisa.kojima@linaro.org> X-Mailer: git-send-email 2.14.2 Sender: linux-spi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Hello, Support for Socionext's FIP controller intended for flash device interfacing. The controller can operate in 'direct' or 'command' mode. One mode directly talks and provide a read/write i/f to the flash device. Other works as plain SPI mode. This driver runs the controller as a SPI controller. Changes since v5: # Supported ACPI probing and added ACPI device table(SCX0004) # Removed DT dependencies # Removed to call _relaxed variants to access the registers # Updated irq name to use dev_name() # Updated return value for irq handlers # Explicitly listed the supported bits_per_word # Removed FIFO handling from a set_cs() operation Changes since v4: # Supported interrupt based data handling instead of polling # Added prefix "SYNQUACER_HSSPI_" # Replaced data read/write access with readsx()/writesx() # Updated clock source handling, explicitly specify "iHCLK" or "iPCKL" and removed array of clk Changes since v3: # Convert IS_ERR returned from devm_clk_get(iPCLK) to NULL, that way we can call clk_xxx(IPCLK) without first checking for it being valid. Changes since v2: # Made iHCLK clock property required in DT, and iPCLK an optional extra. # Hardcode max number of slaves to 4, as specified in the manual. Changes since v1: # Changed licence header to C++ style comment. # Removed redundant lock and transfer_mode backup member. # Fixed divisor to allow upto 254. Masahisa Kojima (3): MAINTAINERS: Add entry for Synquacer SPI driver dt-bindings: spi: Add DT bindings for Synquacer spi: Add spi driver for Socionext Synquacer platform .../devicetree/bindings/spi/spi-synquacer.txt | 27 + MAINTAINERS | 8 + drivers/spi/Kconfig | 11 + drivers/spi/Makefile | 1 + drivers/spi/spi-synquacer.c | 826 +++++++++++++++++++++ 5 files changed, 873 insertions(+) create mode 100644 Documentation/devicetree/bindings/spi/spi-synquacer.txt create mode 100644 drivers/spi/spi-synquacer.c