From patchwork Thu Apr 29 20:49:57 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eddie James X-Patchwork-Id: 429473 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=-11.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT 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 DB2BDC433ED for ; Thu, 29 Apr 2021 20:50:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BDD7A6143E for ; Thu, 29 Apr 2021 20:50:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236882AbhD2Uu7 (ORCPT ); Thu, 29 Apr 2021 16:50:59 -0400 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:12190 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S229966AbhD2Uu7 (ORCPT ); Thu, 29 Apr 2021 16:50:59 -0400 Received: from pps.filterd (m0098413.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.43/8.16.0.43) with SMTP id 13TKX6H0109356; Thu, 29 Apr 2021 16:50:08 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=from : to : cc : subject : date : message-id : mime-version : content-transfer-encoding; s=pp1; bh=+lJW8sqJwEI0hybZTWZ3M//scidWBU0FxTTtQxAz4OU=; b=U8Cc+Mt2iQpf/jV5+VsC0La9aZpMB3f8VLdEtRF6XjATymTHvjctNoBPqdO52Zs1DyWK w8B4wChWGDZMsQ6HezxYeXYvK022vrzrk+of8+LhOoqrIgwzv2R4B4UhulzaB1H1Rdtd aasZvn7BL8d9fNKESzvh+tIQ9rVGPnGMFJbTANDaOVMmuR+OB9bDL/1JawXLUSuoESrT spErf1ZlniYuyKVPo6PQkMuXE43ELPVMNS/kXaWtNuvU+qtz6WMhycJQWFlaNSV3K5HN KiDQriS38qNpufe6nthorgGz1e6bu7LKSzV2XvUvd/smqxoz7Xw3TfuU7NPfJi1zth4P Sw== Received: from pps.reinject (localhost [127.0.0.1]) by mx0b-001b2d01.pphosted.com with ESMTP id 3883ech61j-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 29 Apr 2021 16:50:08 -0400 Received: from m0098413.ppops.net (m0098413.ppops.net [127.0.0.1]) by pps.reinject (8.16.0.43/8.16.0.43) with SMTP id 13TKXR0n113357; Thu, 29 Apr 2021 16:50:08 -0400 Received: from ppma04dal.us.ibm.com (7a.29.35a9.ip4.static.sl-reverse.com [169.53.41.122]) by mx0b-001b2d01.pphosted.com with ESMTP id 3883ech614-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 29 Apr 2021 16:50:08 -0400 Received: from pps.filterd (ppma04dal.us.ibm.com [127.0.0.1]) by ppma04dal.us.ibm.com (8.16.0.43/8.16.0.43) with SMTP id 13TKfGuD020477; Thu, 29 Apr 2021 20:50:07 GMT Received: from b01cxnp22035.gho.pok.ibm.com (b01cxnp22035.gho.pok.ibm.com [9.57.198.25]) by ppma04dal.us.ibm.com with ESMTP id 384aya8mwt-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 29 Apr 2021 20:50:07 +0000 Received: from b01ledav001.gho.pok.ibm.com (b01ledav001.gho.pok.ibm.com [9.57.199.106]) by b01cxnp22035.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 13TKo69B34537976 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 29 Apr 2021 20:50:06 GMT Received: from b01ledav001.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id C1B2C2806A; Thu, 29 Apr 2021 20:50:06 +0000 (GMT) Received: from b01ledav001.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id D469F2805A; Thu, 29 Apr 2021 20:50:05 +0000 (GMT) Received: from v0005c16.aus.stglabs.ibm.com (unknown [9.211.73.43]) by b01ledav001.gho.pok.ibm.com (Postfix) with ESMTP; Thu, 29 Apr 2021 20:50:05 +0000 (GMT) From: Eddie James To: linux-leds@vger.kernel.org Cc: linux-kernel@vger.kernel.org, pavel@ucw.cz, jacek.anaszewski@gmail.com, robh+dt@kernel.or, devicetree@vger.kernel.org, vishwa@linux.ibm.com, Eddie James Subject: [PATCH 0/5] leds: Support retaining state for the PCA955x Date: Thu, 29 Apr 2021 15:49:57 -0500 Message-Id: <20210429205002.70245-1-eajames@linux.ibm.com> X-Mailer: git-send-email 2.27.0 MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-GUID: Y81GTJAsVYS11NcwUa07wx8gz-D9_sV1 X-Proofpoint-ORIG-GUID: P6gmtKGH4EmS0flePYnG7Vr8zbG4_9po X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.391, 18.0.761 definitions=2021-04-29_11:2021-04-28,2021-04-29 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 priorityscore=1501 phishscore=0 clxscore=1011 lowpriorityscore=0 suspectscore=0 impostorscore=0 malwarescore=0 adultscore=0 mlxlogscore=939 spamscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2104060000 definitions=main-2104290133 Precedence: bulk List-ID: X-Mailing-List: linux-leds@vger.kernel.org This series implements the ability to retain the state of the LEDs controlled by the PCA955x across system reboots. This includes a change to the LED core driver to respect the retain-state-shutdown device tree property. It also cleans up the PCA955x driver and adds the ability to query the hardware LED brightness. Eddie James (5): dt-bindings: leds: Add retain-state-shutdown boolean leds: leds-core: Implement the retain-state-shutdown property leds: pca955x: Clean up code formatting leds: pca955x: Add brightness_get function leds: pca955x: Implement the default-state property .../devicetree/bindings/leds/common.yaml | 6 + drivers/leds/led-class.c | 10 +- drivers/leds/leds-pca955x.c | 169 +++++++++++++----- 3 files changed, 142 insertions(+), 43 deletions(-) Reviewed-by: Vishwanatha Subbanna