From patchwork Thu Jun 4 12:05:02 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dan Murphy X-Patchwork-Id: 209028 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=-9.9 required=3.0 tests=DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable 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 7BADAC433E1 for ; Thu, 4 Jun 2020 12:07:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 56692206E6 for ; Thu, 4 Jun 2020 12:07:03 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="ElV8ZilR" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728596AbgFDMGw (ORCPT ); Thu, 4 Jun 2020 08:06:52 -0400 Received: from fllv0015.ext.ti.com ([198.47.19.141]:58368 "EHLO fllv0015.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728565AbgFDMGo (ORCPT ); Thu, 4 Jun 2020 08:06:44 -0400 Received: from lelv0266.itg.ti.com ([10.180.67.225]) by fllv0015.ext.ti.com (8.15.2/8.15.2) with ESMTP id 054C6fwf052343; Thu, 4 Jun 2020 07:06:41 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1591272401; bh=/5DvSnU4MOcUhmIVb2t0IvpnhJjxvpDjLa+s3n+JNV8=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=ElV8ZilRUQt4fuaL+L2ncMjl2FiKvqDlw8DSYFrRXKQ//3XtmKv2wmDi7Sb1z1Hr7 MG+eRR1MLB1j8yginBliXh3y8oilm4Kb7Onfy/jqNzFFQVLJbmc+ShwUpEG4drjBuH WenRnQlDLcklr5U1dyyWpHG460oehgQ3A+tel5yg= Received: from DLEE113.ent.ti.com (dlee113.ent.ti.com [157.170.170.24]) by lelv0266.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 054C6fD8054816 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Thu, 4 Jun 2020 07:06:41 -0500 Received: from DLEE113.ent.ti.com (157.170.170.24) by DLEE113.ent.ti.com (157.170.170.24) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3; Thu, 4 Jun 2020 07:06:41 -0500 Received: from lelv0327.itg.ti.com (10.180.67.183) by DLEE113.ent.ti.com (157.170.170.24) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3 via Frontend Transport; Thu, 4 Jun 2020 07:06:41 -0500 Received: from localhost (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0327.itg.ti.com (8.15.2/8.15.2) with ESMTP id 054C6fnP017331; Thu, 4 Jun 2020 07:06:41 -0500 From: Dan Murphy To: , CC: , , , Dan Murphy Subject: [PATCH v26 13/15] leds: lp5521: Add multicolor framework multicolor brightness support Date: Thu, 4 Jun 2020 07:05:02 -0500 Message-ID: <20200604120504.32425-14-dmurphy@ti.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200604120504.32425-1-dmurphy@ti.com> References: <20200604120504.32425-1-dmurphy@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-leds-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-leds@vger.kernel.org Add the multicolor brightness call back to support the multicolor framework. This function allows setting the brightness across grouped LED channels in a single call. Acked-by: Pavel Machek Acked-by: Jacek Anaszewski Signed-off-by: Dan Murphy --- drivers/leds/Kconfig | 1 + drivers/leds/leds-lp5521.c | 20 ++++++++++++++++++++ 2 files changed, 21 insertions(+) diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig index 8b28f73c810c..bdf8fc2652fb 100644 --- a/drivers/leds/Kconfig +++ b/drivers/leds/Kconfig @@ -398,6 +398,7 @@ config LEDS_LP55XX_COMMON config LEDS_LP5521 tristate "LED Support for N.S. LP5521 LED driver chip" depends on LEDS_CLASS && I2C + depends on LEDS_CLASS_MULTI_COLOR || !LEDS_CLASS_MULTI_COLOR select LEDS_LP55XX_COMMON help If you say yes here you get support for the National Semiconductor diff --git a/drivers/leds/leds-lp5521.c b/drivers/leds/leds-lp5521.c index 6ff81d6be789..ef8c3bfa8f3c 100644 --- a/drivers/leds/leds-lp5521.c +++ b/drivers/leds/leds-lp5521.c @@ -349,6 +349,25 @@ static int lp5521_run_selftest(struct lp55xx_chip *chip, char *buf) return 0; } +static int lp5521_multicolor_brightness(struct lp55xx_led *led) +{ + struct lp55xx_chip *chip = led->chip; + int ret; + int i; + + mutex_lock(&chip->lock); + for (i = 0; i < led->mc_cdev.num_colors; i++) { + ret = lp55xx_write(chip, + LP5521_REG_LED_PWM_BASE + + led->mc_cdev.subled_info[i].channel, + led->mc_cdev.subled_info[i].brightness); + if (ret) + break; + } + mutex_unlock(&chip->lock); + return ret; +} + static int lp5521_led_brightness(struct lp55xx_led *led) { struct lp55xx_chip *chip = led->chip; @@ -490,6 +509,7 @@ static struct lp55xx_device_config lp5521_cfg = { .max_channel = LP5521_MAX_LEDS, .post_init_device = lp5521_post_init_device, .brightness_fn = lp5521_led_brightness, + .multicolor_brightness_fn = lp5521_multicolor_brightness, .set_led_current = lp5521_set_led_current, .firmware_cb = lp5521_firmware_loaded, .run_engine = lp5521_run_engine,