Received: by 2002:ac0:a594:0:0:0:0:0 with SMTP id m20-v6csp3718341imm; Fri, 25 May 2018 10:20:25 -0700 (PDT) X-Google-Smtp-Source: AB8JxZrliaBTew6n2FfkIspdnOnr/EsASUISrfeE4LXeG1C/dwqLyhI5Z+IUEo/8G8KlvTt9UKga X-Received: by 2002:a17:902:d807:: with SMTP id a7-v6mr3453320plz.92.1527268825820; Fri, 25 May 2018 10:20:25 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1527268825; cv=none; d=google.com; s=arc-20160816; b=QNXQb4qXJ6FDq1RIG8v++gtdBQLkPHnIac3N4kQzllTUwC+91jUofShFmxFhrmgfOt Dt/Ib/ldiy4cOHpvwDGhYwmQ7U6X3Hn+6yvED0ii7RcvH3t83iiMEE2+JpKdEDYvaTGt gKKbTFRFs0CbZ4LZt9711vBWDjrJukGtVu30YoJiApW6zSe015yrwYbB1g7khjm1a0UL b/ji3mJQFCqANc7SEvaJ5HEVIRniw+OzKJhkAo5E/MgPM+l0TDVMTViakthg9B6fnJPB 02/VwEGxKVANE4Tg3YtLNiOlwi/3911rCB3lGS2I3QWkwG/zNhvEqGvbaBMx53WoY362 r5zQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:mime-version:message-id:date:subject:cc :to:from:arc-authentication-results; bh=MAQxql5IFCyxDbyfrrlU9EojxHdfNlAvN79ZjsnP/TE=; b=N750Xvu052wGVpZUQCVgU8lSPqeOS73lQv0NoitNHnVryhvSorQqmtOflEm4pkdFPO tNF5206mN6HJFFVqKyEj5kwVrcEuAMLDv/r10lHCS2g6hp0fH/ae9i4+zt9/6MFdzUlo 7Xa4NEZu1tbcTNfCSzeg6/azKQ2MiRhiPCjHsOqmU9+AUA/iRtd4gVtevLjXZS9bvaII gOZ6lXR+bJiOoYUnWALSPny5CsrdTtuk/vJmByT2Afe7mhCM7olOBUc/cbtw6grDjcgb g9+3HoBbMN2duAMfDxXTH6kpm5UBtEqLa56QM7jnE6WQTWvI53LdJGhvmzb7GyW4EDu/ Ip0A== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id p29-v6si3027660pgn.663.2018.05.25.10.20.09; Fri, 25 May 2018 10:20:25 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S967378AbeEYRTc (ORCPT + 99 others); Fri, 25 May 2018 13:19:32 -0400 Received: from esa4.microchip.iphmx.com ([68.232.154.123]:23899 "EHLO esa4.microchip.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753104AbeEYRTa (ORCPT ); Fri, 25 May 2018 13:19:30 -0400 X-IronPort-AV: E=Sophos;i="5.49,440,1520924400"; d="scan'208";a="14357815" Received: from smtpout.microchip.com (HELO email.microchip.com) ([198.175.253.82]) by esa4.microchip.iphmx.com with ESMTP/TLS/DHE-RSA-AES256-SHA; 25 May 2018 10:19:29 -0700 Received: from m19893.microchip.com (10.10.76.4) by chn-sv-exch04.mchp-main.com (10.10.76.105) with Microsoft SMTP Server id 14.3.352.0; Fri, 25 May 2018 10:19:28 -0700 From: Radu Pirea To: , , , , , , , CC: , , , , , Radu Pirea Subject: [PATCH v4 0/6] Driver for at91 usart in spi mode Date: Fri, 25 May 2018 20:19:35 +0300 Message-ID: <20180525171941.26766-1-radu.pirea@microchip.com> X-Mailer: git-send-email 2.17.0 MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, This is the second version of driver. I added a mfd driver which by default probes atmel_serial driver and if in dt is specified to probe the spi driver, then the spi-at91-usart driver will be probed. The compatible for atmel_serial is now the compatible for at91-usart mfd driver and compatilbe for atmel_serial driver was changed in order to keep the bindings for serial as they are. Changes in v1: - added spi-at91-usart driver Changes in v2: - added at91-usart mfd driver - modified spi-at91-usart driver to work as mfd driver child - modified atmel_serial driver to work as mfd driver child Changes in v3: - fixed spi slaves probing Changes in v4: - modified the spi driver to use cs gpio support form spi subsystem - fixed dma transfers for serial driver - squashed binding for spi and serial and moved them to mfd/atmel-usart.txt Radu Pirea (6): MAINTAINERS: add at91 usart mfd driver dt-bindings: add binding for atmel-usart in SPI mode mfd: at91-usart: added mfd driver for usart MAINTAINERS: add at91 usart spi driver spi: at91-usart: add driver for at91-usart as spi tty/serial: atmel: changed the driver to work under at91-usart mfd .../bindings/{serial => mfd}/atmel-usart.txt | 25 +- MAINTAINERS | 16 + drivers/mfd/Kconfig | 10 + drivers/mfd/Makefile | 1 + drivers/mfd/at91-usart.c | 75 +++ drivers/spi/Kconfig | 9 + drivers/spi/Makefile | 1 + drivers/spi/spi-at91-usart.c | 431 ++++++++++++++++++ drivers/tty/serial/Kconfig | 1 + drivers/tty/serial/atmel_serial.c | 40 +- include/dt-bindings/mfd/at91-usart.h | 17 + 11 files changed, 606 insertions(+), 20 deletions(-) rename Documentation/devicetree/bindings/{serial => mfd}/atmel-usart.txt (76%) create mode 100644 drivers/mfd/at91-usart.c create mode 100644 drivers/spi/spi-at91-usart.c create mode 100644 include/dt-bindings/mfd/at91-usart.h -- 2.17.0