From patchwork Thu Mar 23 17:21:07 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ye Xiang X-Patchwork-Id: 666376 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1D2C1C76196 for ; Thu, 23 Mar 2023 17:21:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231569AbjCWRVL (ORCPT ); Thu, 23 Mar 2023 13:21:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52464 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229508AbjCWRVK (ORCPT ); Thu, 23 Mar 2023 13:21:10 -0400 Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4D22926866; Thu, 23 Mar 2023 10:21:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1679592069; x=1711128069; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=F8VEs+gAoTbNxRMLbfeYtBj/ROtGxGe7/N+1j6jckaw=; b=b/ucdEI/q5ecmvInal7rOQKhySCMnA4cP7VjA4lyMa3iP7W6R+LkVH7o LttSaiMVTlmEoV13e4rDuisPqtm5X/i7rW4mdnhTFqBh63wZL6cx8ZkYS dZvGqCBAADrOALgVaYJog1neTe9sU0mzIf/opw7o1bo0iKMee4xtliV8c pYkw6GfxSXqkM93eeCGv7XBIfoUpAiVr8OFQZm5duh0kcr745eMoMcXTA UlHGoOFxik5wRXnv/eA5Az34u2HsyaqEghVLsgxfboBF5noEENBiuyM1U g4EEqnJJXYlmQHITL2YsQuQ/Vt+gvOL9d3kRDEjy3qrzYhj3oC4WhnYK9 Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10658"; a="425840143" X-IronPort-AV: E=Sophos;i="5.98,285,1673942400"; d="scan'208";a="425840143" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 23 Mar 2023 10:21:08 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10658"; a="712748266" X-IronPort-AV: E=Sophos;i="5.98,285,1673942400"; d="scan'208";a="712748266" Received: from ye-nuc7i7dnhe.sh.intel.com ([10.239.154.52]) by orsmga008.jf.intel.com with ESMTP; 23 Mar 2023 10:21:03 -0700 From: Ye Xiang To: Greg Kroah-Hartman , Arnd Bergmann , Matthias Kaehlcke , Lee Jones , Wolfram Sang , Tyrone Ting , Mark Brown , Linus Walleij , Bartosz Golaszewski , linux-usb@vger.kernel.org, linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org, linux-spi@vger.kernel.org, linux-gpio@vger.kernel.org Cc: srinivas.pandruvada@intel.com, heikki.krogerus@linux.intel.com, andriy.shevchenko@linux.intel.com, sakari.ailus@linux.intel.com, zhifeng.wang@intel.com, wentong.wu@intel.com, lixu.zhang@intel.com, Ye Xiang Subject: [PATCH v6 0/6] Add Intel LJCA device driver Date: Fri, 24 Mar 2023 01:21:07 +0800 Message-Id: <20230323172113.1231050-1-xiang.ye@intel.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org Add driver for Intel La Jolla Cove Adapter (LJCA) device. This is a USB-GPIO, USB-I2C and USB-SPI device. We add 4 drivers to support this device: a USB driver, a GPIO chip driver, a I2C controller driver and a SPI controller driver. --- v6: - ljca: split LJCA USB driver into two commits: USB part and API part. - gpio/i2c/spi: use auxiliary bus for sub-module device enumeration instead of MFD. - move document patch for LJCA sysfs entry to the 3th patch of this patch series. - ljca: fix potential race condition when wait response timeout. - ljca: use devm_kzalloc to malloc ljca device struct. v5: - move ljca.h from drivers/include/mfd to drivers/include/usb. - ljca: fix a potential memory leak issue. - add a blank line before return to adust to kernel code style. - ljca: sysfs: split "cmd" to "ljca_dfu" and "ljca_trace_level". v4: - move ljca.c from drivers/mfd to drivers/usb/misc folder. - fix index warning in sysfs-bus-devices-ljca. v3: - spi: make ljca_spi_transfer inline and fix an endian issue. v2: - ljca: remove reset command. - gpio/spi/i2c: add `default MFD_LJCA` in Kconfig. - gpio: add "select GPIOLIB_IRQCHIP" in Kconfig. Ye Xiang (6): usb: Add support for Intel LJCA device usb: ljca: Add transport interfaces for sub-module drivers Documentation: Add ABI doc for attributes of LJCA device gpio: Add support for Intel LJCA USB GPIO driver i2c: Add support for Intel LJCA USB I2C driver spi: Add support for Intel LJCA USB SPI driver .../ABI/testing/sysfs-bus-usb-devices-ljca | 36 + drivers/gpio/Kconfig | 12 + drivers/gpio/Makefile | 1 + drivers/gpio/gpio-ljca.c | 458 ++++++++ drivers/i2c/busses/Kconfig | 11 + drivers/i2c/busses/Makefile | 1 + drivers/i2c/busses/i2c-ljca.c | 355 ++++++ drivers/spi/Kconfig | 11 + drivers/spi/Makefile | 1 + drivers/spi/spi-ljca.c | 289 +++++ drivers/usb/misc/Kconfig | 13 + drivers/usb/misc/Makefile | 1 + drivers/usb/misc/ljca.c | 1012 +++++++++++++++++ include/linux/usb/ljca.h | 95 ++ 14 files changed, 2296 insertions(+) create mode 100644 Documentation/ABI/testing/sysfs-bus-usb-devices-ljca create mode 100644 drivers/gpio/gpio-ljca.c create mode 100644 drivers/i2c/busses/i2c-ljca.c create mode 100644 drivers/spi/spi-ljca.c create mode 100644 drivers/usb/misc/ljca.c create mode 100644 include/linux/usb/ljca.h