From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-21.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 395CDC4338F for ; Sat, 7 Aug 2021 00:27:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1FF8F61167 for ; Sat, 7 Aug 2021 00:27:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229766AbhHGA2K (ORCPT ); Fri, 6 Aug 2021 20:28:10 -0400 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:25573 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229587AbhHGA2I (ORCPT ); Fri, 6 Aug 2021 20:28:08 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1628296071; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=tZ3lnrh2CwfspNnWsRa151N5FtNbghVO47moRJzJ0CI=; b=a4c0dPmBlX0SuBZS2KuaWCwhljcivuGLtz7LUTX8yxVMrCM51xvBq++QqYIB6aBbbqkYaJ 23Lvb2SsadQXLy8dLSJlOmCUpOhpmsk2UuUElUStoXJC82AwWvtYtb4MPbm11wZiN2TzPe 3LSh2LNrN+s+rWZkW5w7NDxwtRZom2E= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-447-w_-Aa5FtNpq9-kVvBb0N6Q-1; Fri, 06 Aug 2021 20:27:48 -0400 X-MC-Unique: w_-Aa5FtNpq9-kVvBb0N6Q-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id D9781593A8; Sat, 7 Aug 2021 00:27:46 +0000 (UTC) Received: from jsavitz.bos.com (unknown [10.22.8.60]) by smtp.corp.redhat.com (Postfix) with ESMTP id EB64B69FAD; Sat, 7 Aug 2021 00:27:45 +0000 (UTC) From: Joel Savitz To: linux-kernel@vger.kernel.org Cc: Joel Savitz , Lee Jones , Stefan Wahren , Nicolas Saenz Julienne , linux-rpi-kernel@lists.infradead.org, fedora-rpi@googlegroups.com, Charles Mirabile , Mwesigwa Guma Subject: [RFC PATCH 0/3] Raspberry Pi Sense HAT driver Date: Fri, 6 Aug 2021 20:27:19 -0400 Message-Id: <20210807002722.2634585-1-jsavitz@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch series adds a set of drivers for operating the Sense HAT peripheral device. This board is an add on for the Raspberry Pi that is designed to connect using the GPIO connector via I2C. It features: - a joystick - an 8x8 RGB LED matrix display - a whole bunch of environmental sensors with their own drivers (those are already in upstream Linux) This is a refactor of the work of Serge Schneider, the author of a version of this driver that is currently in the Raspberry Pi downstream kernel. We modified his code to make it suitable for upstream Linux. A couple of tests are available for this driver in this repo: https://github.com/underground-software/sensehat/tree/master/tests - color_test displays various solid colors on the LED panel - framebuffer_test diplays a single lit cell that is controllable via the arrow keys or the joystick Though the driver is split into three modules, they are interdependent and meaningless in isolation. As such, we have grouped them together. This is a request for comments. Please let us know if you have any suggestions, complements, or harsh criticism. ;) Known issue: - We do not know how to integrate the device tree overlay into mainline Linux. Fortunately, most Linux distrubtions designed for the Raspberry Pi already include the approriate device tree overlay as a part of their importation of all overlays from the downstream Raspberry Pi kernel. Suggestions are welcome and appreciated. For more information about the Sense HAT, visit: https://www.raspberrypi.org/products/sense-hat/ Signed-off-by: Charles Mirabile Signed-off-by: Mwesigwa Guma Signed-off-by: Joel Savitz Joel Savitz (3): drivers/mfd: rpisense: Raspberry Pi senseHAT core driver drivers/mfd: rpisense: Raspberry Pi senseHAT joystick driver drivers/mfd: rpisense: Raspberry Pi senseHAT 8x8 LED matrix display driver drivers/mfd/Kconfig | 10 ++ drivers/mfd/Makefile | 3 + drivers/mfd/rpisense-core.c | 170 +++++++++++++++++++++++ drivers/mfd/rpisense-display.c | 242 +++++++++++++++++++++++++++++++++ drivers/mfd/rpisense-js.c | 132 ++++++++++++++++++ include/linux/mfd/rpisense.h | 55 ++++++++ 6 files changed, 612 insertions(+) create mode 100644 drivers/mfd/rpisense-core.c create mode 100644 drivers/mfd/rpisense-display.c create mode 100644 drivers/mfd/rpisense-js.c create mode 100644 include/linux/mfd/rpisense.h -- 2.27.0