From patchwork Tue May 26 16:46:38 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dan Murphy X-Patchwork-Id: 200018 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 51145C433E3 for ; Tue, 26 May 2020 16:47:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 28C04207FB for ; Tue, 26 May 2020 16:47:23 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="Zoh8N7xU" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728339AbgEZQrQ (ORCPT ); Tue, 26 May 2020 12:47:16 -0400 Received: from fllv0015.ext.ti.com ([198.47.19.141]:46336 "EHLO fllv0015.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388907AbgEZQrO (ORCPT ); Tue, 26 May 2020 12:47:14 -0400 Received: from fllv0034.itg.ti.com ([10.64.40.246]) by fllv0015.ext.ti.com (8.15.2/8.15.2) with ESMTP id 04QGl9uC055993; Tue, 26 May 2020 11:47:09 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1590511629; bh=I2Mrjy0APodtjuOTHBH6j0q2PXnjhciUFeyfyjLYM84=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=Zoh8N7xU79AfERgCJIVaIwDMwP+dCmN0QoBPmqL6QwHpYnhdwKNJFJytpnsgvmTN7 V+BduenL5k3pvS7A/z311pSMGk2KVEOXBxFNBpt3VCYyegL4E/tQIc67BvgPHiHzut 5RxuGKFqbx+iUT2oy6M9C/qriV6Vx2rlIMOwt8qo= Received: from DLEE112.ent.ti.com (dlee112.ent.ti.com [157.170.170.23]) by fllv0034.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 04QGl9tk038886 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 26 May 2020 11:47:09 -0500 Received: from DLEE101.ent.ti.com (157.170.170.31) by DLEE112.ent.ti.com (157.170.170.23) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3; Tue, 26 May 2020 11:47:09 -0500 Received: from fllv0039.itg.ti.com (10.64.41.19) by DLEE101.ent.ti.com (157.170.170.31) 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; Tue, 26 May 2020 11:47:08 -0500 Received: from localhost (ileax41-snat.itg.ti.com [10.172.224.153]) by fllv0039.itg.ti.com (8.15.2/8.15.2) with ESMTP id 04QGl8If130121; Tue, 26 May 2020 11:47:08 -0500 From: Dan Murphy To: , , CC: , , , Dan Murphy Subject: [PATCH v25 02/16] leds: multicolor: Introduce a multicolor class definition Date: Tue, 26 May 2020 11:46:38 -0500 Message-ID: <20200526164652.2331-3-dmurphy@ti.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200526164652.2331-1-dmurphy@ti.com> References: <20200526164652.2331-1-dmurphy@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Introduce a multicolor class that groups colored LEDs within a LED node. The multi color class groups monochrome LEDs and allows controlling two aspects of the final combined color: hue and lightness. The former is controlled via the intensity file and the latter is controlled via brightness file. Acked-by: Jacek Anaszewski Signed-off-by: Dan Murphy --- .../ABI/testing/sysfs-class-led-multicolor | 34 +++ Documentation/leds/index.rst | 1 + Documentation/leds/leds-class-multicolor.rst | 88 ++++++++ MAINTAINERS | 8 + drivers/leds/Kconfig | 10 + drivers/leds/Makefile | 1 + drivers/leds/led-class-multicolor.c | 210 ++++++++++++++++++ include/linux/led-class-multicolor.h | 121 ++++++++++ 8 files changed, 473 insertions(+) create mode 100644 Documentation/ABI/testing/sysfs-class-led-multicolor create mode 100644 Documentation/leds/leds-class-multicolor.rst create mode 100644 drivers/leds/led-class-multicolor.c create mode 100644 include/linux/led-class-multicolor.h diff --git a/Documentation/ABI/testing/sysfs-class-led-multicolor b/Documentation/ABI/testing/sysfs-class-led-multicolor new file mode 100644 index 000000000000..7d33a82a4b07 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-class-led-multicolor @@ -0,0 +1,34 @@ +What: /sys/class/leds//brightness +Date: March 2020 +KernelVersion: 5.8 +Contact: Dan Murphy +Description: read/write + Writing to this file will update all LEDs within the group to a + calculated percentage of what each color LED intensity is set + to. The percentage is calculated for each grouped LED via the + equation below: + + led_brightness = brightness * multi_intensity/max_brightness + + For additional details please refer to + Documentation/leds/leds-class-multicolor.rst. + + The value of the color is from 0 to + /sys/class/leds//max_brightness. + +What: /sys/class/leds//multi_index +Date: March 2020 +KernelVersion: 5.8 +Contact: Dan Murphy +Description: read + The multi_index array, when read, will output the LED colors + by name as they are indexed in the multi_intensity file. + +What: /sys/class/leds//multi_intensity +Date: March 2020 +KernelVersion: 5.8 +Contact: Dan Murphy +Description: read/write + Intensity level for the LED color within the array. + The intensities for each color must be entered based on the + multi_index array. diff --git a/Documentation/leds/index.rst b/Documentation/leds/index.rst index 060f4e485897..bc70c6aa7138 100644 --- a/Documentation/leds/index.rst +++ b/Documentation/leds/index.rst @@ -9,6 +9,7 @@ LEDs leds-class leds-class-flash + leds-class-multicolor ledtrig-oneshot ledtrig-transient ledtrig-usbport diff --git a/Documentation/leds/leds-class-multicolor.rst b/Documentation/leds/leds-class-multicolor.rst new file mode 100644 index 000000000000..2dcde711c51c --- /dev/null +++ b/Documentation/leds/leds-class-multicolor.rst @@ -0,0 +1,88 @@ +.. SPDX-License-Identifier: GPL-2.0 + +==================================== +MultiColor LED handling under Linux +==================================== + +Description +=========== +The multicolor class groups monochrome LEDs and allows controlling two +aspects of the final combined color: hue and lightness. The former is +controlled via the multi_intensity array file and the latter is controlled +via brightness file. + +Multicolor Class Control +======================== +The multicolor class presents files that groups the colors as indexes in an +array. These files are children under the LED parent node created by the +led_class framework. The led_class framework is documented in led-class.rst +within this documentation directory. + +Each colored LED will be indexed under the multi_* files. The order of the +colors will be arbitrary. The multi_index file can be read to determine the +color name to indexed value. + +The multi_index file is an array that contains the string list of the colors as +they are defined in each multi_* array file. + +The multi_intensity is an array that can be read or written to for the +individual color intensities. All elements within this array must be written in +order for the color LED intensities to be updated. + +Directory Layout Example +======================== +root:/sys/class/leds/multicolor:status# ls -lR +-rw-r--r-- 1 root root 4096 Oct 19 16:16 brightness +-r--r--r-- 1 root root 4096 Oct 19 16:16 max_brightness +-r--r--r-- 1 root root 4096 Oct 19 16:16 multi_index +-rw-r--r-- 1 root root 4096 Oct 19 16:16 multi_intensity + +Multicolor Class Brightness Control +=================================== +The multicolor class framework will calculate each monochrome LEDs intensity. + +The brightness level for each LED is calculated based on the color LED +intensity setting divided by the global max_brightness setting multiplied by +the requested brightness. + +led_brightness = brightness * multi_intensity/max_brightness + +Example: +A user first writes the multi_intensity file with the brightness levels +for each LED that are necessary to achieve a certain color output from a +multicolor LED group. + +cat /sys/class/leds/multicolor:status/multi_index +green blue red + +echo 43 226 138 > /sys/class/leds/multicolor:status/multi_intensity + +red - + intensity = 138 + max_brightness = 255 +green - + intensity = 43 + max_brightness = 255 +blue - + intensity = 226 + max_brightness = 255 + +The user can control the brightness of that multicolor LED group by writing the +global 'brightness' control. Assuming a max_brightness of 255 the user +may want to dim the LED color group to half. The user would write a value of +128 to the global brightness file then the values written to each LED will be +adjusted base on this value. + +cat /sys/class/leds/multicolor:status/max_brightness +255 +echo 128 > /sys/class/leds/multicolor:status/brightness + +adjusted_red_value = 128 * 138/255 = 69 +adjusted_green_value = 128 * 43/255 = 21 +adjusted_blue_value = 128 * 226/255 = 113 + +Reading the global brightness file will return the current brightness value of +the color LED group. + +cat /sys/class/leds/multicolor:status/brightness +128 diff --git a/MAINTAINERS b/MAINTAINERS index e64e5db31497..e5f0c3c17bea 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -9533,6 +9533,14 @@ F: Documentation/devicetree/bindings/leds/ F: drivers/leds/ F: include/linux/leds.h +LED MULTICOLOR FRAMEWORK +M: Dan Murphy +L: linux-leds@vger.kernel.org +S: Maintained +F: Documentation/leds/leds-class-multicolor.rst +F: drivers/leds/led-class-multicolor.c +F: include/linux/led-class-multicolor.h + LEGACY EEPROM DRIVER M: Jean Delvare S: Maintained diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig index 9cdc4cfc5d11..fe7d90d4fa23 100644 --- a/drivers/leds/Kconfig +++ b/drivers/leds/Kconfig @@ -30,6 +30,16 @@ config LEDS_CLASS_FLASH for the flash related features of a LED device. It can be built as a module. +config LEDS_CLASS_MULTI_COLOR + tristate "LED MultiColor LED Class Support" + depends on LEDS_CLASS + help + This option enables the multicolor LED sysfs class in /sys/class/leds. + It wraps LED class and adds multicolor LED specific sysfs attributes + and kernel internal API to it. You'll need this to provide support + for multicolor LEDs that are grouped together. This class is not + intended for single color LEDs. It can be built as a module. + config LEDS_BRIGHTNESS_HW_CHANGED bool "LED Class brightness_hw_changed attribute support" depends on LEDS_CLASS diff --git a/drivers/leds/Makefile b/drivers/leds/Makefile index d0dff504f108..53bf92f30258 100644 --- a/drivers/leds/Makefile +++ b/drivers/leds/Makefile @@ -4,6 +4,7 @@ obj-$(CONFIG_NEW_LEDS) += led-core.o obj-$(CONFIG_LEDS_CLASS) += led-class.o obj-$(CONFIG_LEDS_CLASS_FLASH) += led-class-flash.o +obj-$(CONFIG_LEDS_CLASS_MULTI_COLOR) += led-class-multicolor.o obj-$(CONFIG_LEDS_TRIGGERS) += led-triggers.o # LED Platform Drivers (keep this sorted, M-| sort) diff --git a/drivers/leds/led-class-multicolor.c b/drivers/leds/led-class-multicolor.c new file mode 100644 index 000000000000..c108f4860fd7 --- /dev/null +++ b/drivers/leds/led-class-multicolor.c @@ -0,0 +1,210 @@ +// SPDX-License-Identifier: GPL-2.0 +// LED Multi Color class interface +// Copyright (C) 2019-20 Texas Instruments Incorporated - http://www.ti.com/ +// Author: Dan Murphy + +#include +#include +#include +#include +#include +#include + +#include "leds.h" + +int led_mc_calc_color_components(struct led_classdev_mc *mcled_cdev, + enum led_brightness brightness) +{ + struct led_classdev *led_cdev = &mcled_cdev->led_cdev; + int i; + + for (i = 0; i < mcled_cdev->num_colors; i++) + mcled_cdev->subled_info[i].brightness = brightness * + mcled_cdev->subled_info[i].intensity / + led_cdev->max_brightness; + + return 0; +} +EXPORT_SYMBOL_GPL(led_mc_calc_color_components); + +static ssize_t multi_intensity_store(struct device *dev, + struct device_attribute *intensity_attr, + const char *buf, size_t size) +{ + struct led_classdev *led_cdev = dev_get_drvdata(dev); + struct led_classdev_mc *mcled_cdev = lcdev_to_mccdev(led_cdev); + int nrchars, offset = 0; + int intensity_value[LED_COLOR_ID_MAX]; + int i; + ssize_t ret; + + mutex_lock(&led_cdev->led_access); + + for (i = 0; i < mcled_cdev->num_colors; i++) { + ret = sscanf(buf + offset, "%i%n", + &intensity_value[i], &nrchars); + if (ret != 1) { + dev_dbg(led_cdev->dev, + "Incorrect number of LEDs expected %i values intensity was not applied\n", + mcled_cdev->num_colors); + ret = -EINVAL; + goto err_out; + } + offset += nrchars; + } + + /* account for the space at the end of the buffer */ + offset++; + if (offset < size) { + dev_dbg(led_cdev->dev, + "Incorrect number of LEDs expected %i values intensity was not applied\n", + mcled_cdev->num_colors); + ret = -EINVAL; + goto err_out; + } + + for (i = 0; i < mcled_cdev->num_colors; i++) + mcled_cdev->subled_info[i].intensity = intensity_value[i]; + + led_set_brightness(led_cdev, led_cdev->brightness); + ret = size; +err_out: + mutex_unlock(&led_cdev->led_access); + return ret; +} + +static ssize_t multi_intensity_show(struct device *dev, + struct device_attribute *intensity_attr, + char *buf) +{ + struct led_classdev *led_cdev = dev_get_drvdata(dev); + struct led_classdev_mc *mcled_cdev = lcdev_to_mccdev(led_cdev); + int len = 0; + int i; + + for (i = 0; i < mcled_cdev->num_colors; i++) { + len += sprintf(buf + len, "%d", + mcled_cdev->subled_info[i].intensity); + if (i < mcled_cdev->num_colors) + len += sprintf(buf + len, " "); + } + + len += sprintf(buf + len, "\n"); + return len; +} +static DEVICE_ATTR_RW(multi_intensity); + +static ssize_t multi_index_show(struct device *dev, + struct device_attribute *multi_index_attr, + char *buf) +{ + struct led_classdev *led_cdev = dev_get_drvdata(dev); + struct led_classdev_mc *mcled_cdev = lcdev_to_mccdev(led_cdev); + int len = 0; + int index; + int i; + + for (i = 0; i < mcled_cdev->num_colors; i++) { + index = mcled_cdev->subled_info[i].color_index; + len += sprintf(buf + len, "%s", led_colors[index]); + if (i < mcled_cdev->num_colors) + len += sprintf(buf + len, " "); + } + + len += sprintf(buf + len, "\n"); + return len; +} +static DEVICE_ATTR_RO(multi_index); + +static struct attribute *led_multicolor_attrs[] = { + &dev_attr_multi_intensity.attr, + &dev_attr_multi_index.attr, + NULL, +}; +ATTRIBUTE_GROUPS(led_multicolor); + +int led_classdev_multicolor_register_ext(struct device *parent, + struct led_classdev_mc *mcled_cdev, + struct led_init_data *init_data) +{ + struct led_classdev *led_cdev; + + if (!mcled_cdev) + return -EINVAL; + + if (!mcled_cdev->num_colors) + return -EINVAL; + + if (mcled_cdev->num_colors > LED_COLOR_ID_MAX) + return -EINVAL; + + led_cdev = &mcled_cdev->led_cdev; + mcled_cdev->led_cdev.groups = led_multicolor_groups; + + return led_classdev_register_ext(parent, led_cdev, init_data); +} +EXPORT_SYMBOL_GPL(led_classdev_multicolor_register_ext); + +void led_classdev_multicolor_unregister(struct led_classdev_mc *mcled_cdev) +{ + if (!mcled_cdev) + return; + + led_classdev_unregister(&mcled_cdev->led_cdev); +} +EXPORT_SYMBOL_GPL(led_classdev_multicolor_unregister); + +static void devm_led_classdev_multicolor_release(struct device *dev, void *res) +{ + led_classdev_multicolor_unregister(*(struct led_classdev_mc **)res); +} + +int devm_led_classdev_multicolor_register_ext(struct device *parent, + struct led_classdev_mc *mcled_cdev, + struct led_init_data *init_data) +{ + struct led_classdev_mc **dr; + int ret; + + dr = devres_alloc(devm_led_classdev_multicolor_release, + sizeof(*dr), GFP_KERNEL); + if (!dr) + return -ENOMEM; + + ret = led_classdev_multicolor_register_ext(parent, mcled_cdev, + init_data); + if (ret) { + devres_free(dr); + return ret; + } + + *dr = mcled_cdev; + devres_add(parent, dr); + + return 0; +} +EXPORT_SYMBOL_GPL(devm_led_classdev_multicolor_register_ext); + +static int devm_led_classdev_multicolor_match(struct device *dev, + void *res, void *data) +{ + struct led_classdev_mc **p = res; + + if (WARN_ON(!p || !*p)) + return 0; + + return *p == data; +} + +void devm_led_classdev_multicolor_unregister(struct device *dev, + struct led_classdev_mc *mcled_cdev) +{ + WARN_ON(devres_release(dev, + devm_led_classdev_multicolor_release, + devm_led_classdev_multicolor_match, mcled_cdev)); +} +EXPORT_SYMBOL_GPL(devm_led_classdev_multicolor_unregister); + +MODULE_AUTHOR("Dan Murphy "); +MODULE_DESCRIPTION("Multi Color LED class interface"); +MODULE_LICENSE("GPL v2"); diff --git a/include/linux/led-class-multicolor.h b/include/linux/led-class-multicolor.h new file mode 100644 index 000000000000..50bd986497f0 --- /dev/null +++ b/include/linux/led-class-multicolor.h @@ -0,0 +1,121 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* LED Multicolor class interface + * Copyright (C) 2019-20 Texas Instruments Incorporated - http://www.ti.com/ + */ + +#ifndef _LINUX_MULTICOLOR_LEDS_H_INCLUDED +#define _LINUX_MULTICOLOR_LEDS_H_INCLUDED + +#include +#include + +struct mc_subled { + int color_index; + int brightness; + int intensity; + int channel; +}; + +struct led_classdev_mc { + /* led class device */ + struct led_classdev led_cdev; + int num_colors; + + struct mc_subled *subled_info; +}; + +static inline struct led_classdev_mc *lcdev_to_mccdev( + struct led_classdev *led_cdev) +{ + return container_of(led_cdev, struct led_classdev_mc, led_cdev); +} + +#if IS_ENABLED(CONFIG_LEDS_CLASS_MULTI_COLOR) +/** + * led_classdev_multicolor_register_ext - register a new object of led_classdev + * class with support for multicolor LEDs + * @parent: the multicolor LED to register + * @mcled_cdev: the led_classdev_mc structure for this device + * @init_data: the LED class Multi color device initialization data + * + * Returns: 0 on success or negative error value on failure + */ +int led_classdev_multicolor_register_ext(struct device *parent, + struct led_classdev_mc *mcled_cdev, + struct led_init_data *init_data); + +static inline int led_classdev_multicolor_register(struct device *parent, + struct led_classdev_mc *mcled_cdev) +{ + return led_classdev_multicolor_register_ext(parent, mcled_cdev, NULL); +} + +/** + * led_classdev_multicolor_unregister - unregisters an object of led_classdev + * class with support for multicolor LEDs + * @mcled_cdev: the multicolor LED to unregister + * + * Unregister a previously registered via led_classdev_multicolor_register + * object + */ +void led_classdev_multicolor_unregister(struct led_classdev_mc *mcled_cdev); + +/* Calculate brightness for the monochrome LED cluster */ +int led_mc_calc_color_components(struct led_classdev_mc *mcled_cdev, + enum led_brightness brightness); + +int devm_led_classdev_multicolor_register_ext(struct device *parent, + struct led_classdev_mc *mcled_cdev, + struct led_init_data *init_data); + +static inline int devm_led_classdev_multicolor_register(struct device *parent, + struct led_classdev_mc *mcled_cdev) +{ + return devm_led_classdev_multicolor_register_ext(parent, mcled_cdev, + NULL); +} + +void devm_led_classdev_multicolor_unregister(struct device *parent, + struct led_classdev_mc *mcled_cdev); +#else + +static inline int led_classdev_multicolor_register_ext(struct device *parent, + struct led_classdev_mc *mcled_cdev, + struct led_init_data *init_data) +{ + return -EINVAL; +} + +static inline int led_classdev_multicolor_register(struct device *parent, + struct led_classdev_mc *mcled_cdev) +{ + return led_classdev_multicolor_register_ext(parent, mcled_cdev, NULL); +} + +static inline void led_classdev_multicolor_unregister(struct led_classdev_mc *mcled_cdev) {}; +static inline int led_mc_calc_color_components(struct led_classdev_mc *mcled_cdev, + enum led_brightness brightness) +{ + return -EINVAL; +} + +static inline int devm_led_classdev_multicolor_register_ext(struct device *parent, + struct led_classdev_mc *mcled_cdev, + struct led_init_data *init_data) +{ + return -EINVAL; +} + +static inline int devm_led_classdev_multicolor_register(struct device *parent, + struct led_classdev_mc *mcled_cdev) +{ + return devm_led_classdev_multicolor_register_ext(parent, mcled_cdev, + NULL); +} + +static inline void devm_led_classdev_multicolor_unregister(struct device *parent, + struct led_classdev_mc *mcled_cdev) +{}; + +#endif /* IS_ENABLED(CONFIG_LEDS_CLASS_MULTI_COLOR) */ +#endif /* _LINUX_MULTICOLOR_LEDS_H_INCLUDED */ From patchwork Tue May 26 16:46:41 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dan Murphy X-Patchwork-Id: 200017 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=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 33338C433E1 for ; Tue, 26 May 2020 16:47:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 05955207D8 for ; Tue, 26 May 2020 16:47:31 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="B2YqB3id" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388992AbgEZQra (ORCPT ); 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Tue, 26 May 2020 11:47:24 -0500 Received: from lelv0326.itg.ti.com (10.180.67.84) by DFLE103.ent.ti.com (10.64.6.24) 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; Tue, 26 May 2020 11:47:24 -0500 Received: from localhost (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0326.itg.ti.com (8.15.2/8.15.2) with ESMTP id 04QGlO6A046952; Tue, 26 May 2020 11:47:24 -0500 From: Dan Murphy To: , , CC: , , , Dan Murphy Subject: [PATCH v25 05/16] dt: bindings: lp55xx: Be consistent in the document with LED acronym Date: Tue, 26 May 2020 11:46:41 -0500 Message-ID: <20200526164652.2331-6-dmurphy@ti.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200526164652.2331-1-dmurphy@ti.com> References: <20200526164652.2331-1-dmurphy@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Update the document to be consistent in case when using "LED". This acronym should be capital throughout the document. Acked-by: Pavel Machek Acked-by: Jacek Anaszewski Signed-off-by: Dan Murphy --- Documentation/devicetree/bindings/leds/leds-lp55xx.txt | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/Documentation/devicetree/bindings/leds/leds-lp55xx.txt b/Documentation/devicetree/bindings/leds/leds-lp55xx.txt index 1b66a413fb9d..bfe2805c5534 100644 --- a/Documentation/devicetree/bindings/leds/leds-lp55xx.txt +++ b/Documentation/devicetree/bindings/leds/leds-lp55xx.txt @@ -1,4 +1,4 @@ -Binding for TI/National Semiconductor LP55xx Led Drivers +Binding for TI/National Semiconductor LP55xx LED Drivers Required properties: - compatible: one of @@ -12,8 +12,8 @@ Required properties: - clock-mode: Input clock mode, (0: automode, 1: internal, 2: external) Each child has own specific current settings -- led-cur: Current setting at each led channel (mA x10, 0 if led is not connected) -- max-cur: Maximun current at each led channel. +- led-cur: Current setting at each LED channel (mA x10, 0 if LED is not connected) +- max-cur: Maximun current at each LED channel. Optional properties: - enable-gpio: GPIO attached to the chip's enable pin From patchwork Tue May 26 16:46:43 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Dan Murphy X-Patchwork-Id: 200016 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 2743BC433E2 for ; Tue, 26 May 2020 16:47:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F3B9420723 for ; Tue, 26 May 2020 16:47:45 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="MaVtbCr1" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727941AbgEZQri (ORCPT ); Tue, 26 May 2020 12:47:38 -0400 Received: from fllv0015.ext.ti.com ([198.47.19.141]:46410 "EHLO fllv0015.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388690AbgEZQri (ORCPT ); Tue, 26 May 2020 12:47:38 -0400 Received: from fllv0034.itg.ti.com ([10.64.40.246]) by fllv0015.ext.ti.com (8.15.2/8.15.2) with ESMTP id 04QGlUlY056039; Tue, 26 May 2020 11:47:30 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1590511650; bh=ImlFYf5QGCH7PcwOqYVdrICvX8qjrx/mlmRBIsjna5I=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=MaVtbCr1pi4AzSN32wTsiG0lntDR0lOauPYqEZkyT9TniSFLhFMpesU9JVySJZiVy JK5trw50FLptDWD/6gcDDW/SzWYYZbz6Ca++T/NwtgKv2c8wH2x99QHVUw+0aj0XJz qmoi0uk7jwoIlX5kjrC/w0SmkJNlqOPc2YcjFaZw= Received: from DFLE114.ent.ti.com (dfle114.ent.ti.com [10.64.6.35]) by fllv0034.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 04QGlUc9039262 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 26 May 2020 11:47:30 -0500 Received: from DFLE101.ent.ti.com (10.64.6.22) by DFLE114.ent.ti.com (10.64.6.35) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3; Tue, 26 May 2020 11:47:30 -0500 Received: from lelv0326.itg.ti.com (10.180.67.84) by DFLE101.ent.ti.com (10.64.6.22) 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; Tue, 26 May 2020 11:47:30 -0500 Received: from localhost (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0326.itg.ti.com (8.15.2/8.15.2) with ESMTP id 04QGlUHG047318; Tue, 26 May 2020 11:47:30 -0500 From: Dan Murphy To: , , CC: , , , Dan Murphy , Tony Lindgren , =?utf-8?q?Beno=C3=AEt_Cousson?= Subject: [PATCH v25 07/16] ARM: dts: n900: Add reg property to the LP5523 channel node Date: Tue, 26 May 2020 11:46:43 -0500 Message-ID: <20200526164652.2331-8-dmurphy@ti.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200526164652.2331-1-dmurphy@ti.com> References: <20200526164652.2331-1-dmurphy@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Add the reg property to each channel node. This update is to accomodate the multicolor framework. In addition to the accommodation this allows the LEDs to be placed on any channel and allow designs to skip channels as opposed to requiring sequential order. Signed-off-by: Dan Murphy Acked-by: Tony Lindgren CC: Tony Lindgren CC: "Benoît Cousson" Acked-by: Pavel Machek --- arch/arm/boot/dts/omap3-n900.dts | 29 ++++++++++++++++++++--------- 1 file changed, 20 insertions(+), 9 deletions(-) diff --git a/arch/arm/boot/dts/omap3-n900.dts b/arch/arm/boot/dts/omap3-n900.dts index 4089d97405c9..ebe93b06b4f7 100644 --- a/arch/arm/boot/dts/omap3-n900.dts +++ b/arch/arm/boot/dts/omap3-n900.dts @@ -618,63 +618,74 @@ indicator { }; lp5523: lp5523@32 { + #address-cells = <1>; + #size-cells = <0>; compatible = "national,lp5523"; reg = <0x32>; clock-mode = /bits/ 8 <0>; /* LP55XX_CLOCK_AUTO */ enable-gpio = <&gpio2 9 GPIO_ACTIVE_HIGH>; /* 41 */ - chan0 { + chan@0 { chan-name = "lp5523:kb1"; led-cur = /bits/ 8 <50>; max-cur = /bits/ 8 <100>; + reg = <0>; }; - chan1 { + chan@1 { chan-name = "lp5523:kb2"; led-cur = /bits/ 8 <50>; max-cur = /bits/ 8 <100>; + reg = <1>; }; - chan2 { + chan@2 { chan-name = "lp5523:kb3"; led-cur = /bits/ 8 <50>; max-cur = /bits/ 8 <100>; + reg = <2>; }; - chan3 { + chan@3 { chan-name = "lp5523:kb4"; led-cur = /bits/ 8 <50>; max-cur = /bits/ 8 <100>; + reg = <3>; }; - chan4 { + chan@4 { chan-name = "lp5523:b"; led-cur = /bits/ 8 <50>; max-cur = /bits/ 8 <100>; + reg = <4>; }; - chan5 { + chan@5 { chan-name = "lp5523:g"; led-cur = /bits/ 8 <50>; max-cur = /bits/ 8 <100>; + reg = <5>; }; - chan6 { + chan@6 { chan-name = "lp5523:r"; led-cur = /bits/ 8 <50>; max-cur = /bits/ 8 <100>; + reg = <6>; }; - chan7 { + chan@7 { chan-name = "lp5523:kb5"; led-cur = /bits/ 8 <50>; max-cur = /bits/ 8 <100>; + reg = <7>; }; - chan8 { + chan@8 { chan-name = "lp5523:kb6"; led-cur = /bits/ 8 <50>; max-cur = /bits/ 8 <100>; + reg = <8>; }; }; From patchwork Tue May 26 16:46:46 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dan Murphy X-Patchwork-Id: 200015 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 A784CC433E0 for ; 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Tue, 26 May 2020 11:47:40 -0500 From: Dan Murphy To: , , CC: , , , Dan Murphy Subject: [PATCH v25 10/16] leds: lp55xx: Convert LED class registration to devm_* Date: Tue, 26 May 2020 11:46:46 -0500 Message-ID: <20200526164652.2331-11-dmurphy@ti.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200526164652.2331-1-dmurphy@ti.com> References: <20200526164652.2331-1-dmurphy@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Convert the LED class registration calls to the LED devm_* registration calls. Acked-by: Jacek Anaszewski Acked-by: Pavel Machek Signed-off-by: Dan Murphy --- drivers/leds/leds-lp5521.c | 9 +++------ drivers/leds/leds-lp5523.c | 9 +++------ drivers/leds/leds-lp5562.c | 9 +++------ drivers/leds/leds-lp55xx-common.c | 15 +-------------- drivers/leds/leds-lp55xx-common.h | 2 -- drivers/leds/leds-lp8501.c | 9 +++------ 6 files changed, 13 insertions(+), 40 deletions(-) diff --git a/drivers/leds/leds-lp5521.c b/drivers/leds/leds-lp5521.c index 6f0272249dc8..6d2163c0f625 100644 --- a/drivers/leds/leds-lp5521.c +++ b/drivers/leds/leds-lp5521.c @@ -541,19 +541,17 @@ static int lp5521_probe(struct i2c_client *client, ret = lp55xx_register_leds(led, chip); if (ret) - goto err_register_leds; + goto err_out; ret = lp55xx_register_sysfs(chip); if (ret) { dev_err(&client->dev, "registering sysfs failed\n"); - goto err_register_sysfs; + goto err_out; } return 0; -err_register_sysfs: - lp55xx_unregister_leds(led, chip); -err_register_leds: +err_out: lp55xx_deinit_device(chip); err_init: return ret; @@ -566,7 +564,6 @@ static int lp5521_remove(struct i2c_client *client) lp5521_stop_all_engines(chip); lp55xx_unregister_sysfs(chip); - lp55xx_unregister_leds(led, chip); lp55xx_deinit_device(chip); return 0; diff --git a/drivers/leds/leds-lp5523.c b/drivers/leds/leds-lp5523.c index d0b931a136b9..15e7051392f5 100644 --- a/drivers/leds/leds-lp5523.c +++ b/drivers/leds/leds-lp5523.c @@ -908,19 +908,17 @@ static int lp5523_probe(struct i2c_client *client, ret = lp55xx_register_leds(led, chip); if (ret) - goto err_register_leds; + goto err_out; ret = lp55xx_register_sysfs(chip); if (ret) { dev_err(&client->dev, "registering sysfs failed\n"); - goto err_register_sysfs; + goto err_out; } return 0; -err_register_sysfs: - lp55xx_unregister_leds(led, chip); -err_register_leds: +err_out: lp55xx_deinit_device(chip); err_init: return ret; @@ -933,7 +931,6 @@ static int lp5523_remove(struct i2c_client *client) lp5523_stop_all_engines(chip); lp55xx_unregister_sysfs(chip); - lp55xx_unregister_leds(led, chip); lp55xx_deinit_device(chip); return 0; diff --git a/drivers/leds/leds-lp5562.c b/drivers/leds/leds-lp5562.c index edb57c42e8b1..1c94422408b0 100644 --- a/drivers/leds/leds-lp5562.c +++ b/drivers/leds/leds-lp5562.c @@ -554,19 +554,17 @@ static int lp5562_probe(struct i2c_client *client, ret = lp55xx_register_leds(led, chip); if (ret) - goto err_register_leds; + goto err_out; ret = lp55xx_register_sysfs(chip); if (ret) { dev_err(&client->dev, "registering sysfs failed\n"); - goto err_register_sysfs; + goto err_out; } return 0; -err_register_sysfs: - lp55xx_unregister_leds(led, chip); -err_register_leds: +err_out: lp55xx_deinit_device(chip); err_init: return ret; @@ -580,7 +578,6 @@ static int lp5562_remove(struct i2c_client *client) lp5562_stop_engine(chip); lp55xx_unregister_sysfs(chip); - lp55xx_unregister_leds(led, chip); lp55xx_deinit_device(chip); return 0; diff --git a/drivers/leds/leds-lp55xx-common.c b/drivers/leds/leds-lp55xx-common.c index 44ced02b49f9..882ef39e4965 100644 --- a/drivers/leds/leds-lp55xx-common.c +++ b/drivers/leds/leds-lp55xx-common.c @@ -181,7 +181,7 @@ static int lp55xx_init_led(struct lp55xx_led *led, led->cdev.name = name; } - ret = led_classdev_register(dev, &led->cdev); + ret = devm_led_classdev_register(dev, &led->cdev); if (ret) { dev_err(dev, "led register err: %d\n", ret); return ret; @@ -490,23 +490,10 @@ int lp55xx_register_leds(struct lp55xx_led *led, struct lp55xx_chip *chip) return 0; err_init_led: - lp55xx_unregister_leds(led, chip); return ret; } EXPORT_SYMBOL_GPL(lp55xx_register_leds); -void lp55xx_unregister_leds(struct lp55xx_led *led, struct lp55xx_chip *chip) -{ - int i; - struct lp55xx_led *each; - - for (i = 0; i < chip->num_leds; i++) { - each = led + i; - led_classdev_unregister(&each->cdev); - } -} -EXPORT_SYMBOL_GPL(lp55xx_unregister_leds); - int lp55xx_register_sysfs(struct lp55xx_chip *chip) { struct device *dev = &chip->cl->dev; diff --git a/drivers/leds/leds-lp55xx-common.h b/drivers/leds/leds-lp55xx-common.h index 783ed5103ce5..b9b1041e8143 100644 --- a/drivers/leds/leds-lp55xx-common.h +++ b/drivers/leds/leds-lp55xx-common.h @@ -189,8 +189,6 @@ extern void lp55xx_deinit_device(struct lp55xx_chip *chip); /* common LED class device functions */ extern int lp55xx_register_leds(struct lp55xx_led *led, struct lp55xx_chip *chip); -extern void lp55xx_unregister_leds(struct lp55xx_led *led, - struct lp55xx_chip *chip); /* common device attributes functions */ extern int lp55xx_register_sysfs(struct lp55xx_chip *chip); diff --git a/drivers/leds/leds-lp8501.c b/drivers/leds/leds-lp8501.c index 2638dbf0e8ac..a58019cdb8c3 100644 --- a/drivers/leds/leds-lp8501.c +++ b/drivers/leds/leds-lp8501.c @@ -344,19 +344,17 @@ static int lp8501_probe(struct i2c_client *client, ret = lp55xx_register_leds(led, chip); if (ret) - goto err_register_leds; + goto err_out; ret = lp55xx_register_sysfs(chip); if (ret) { dev_err(&client->dev, "registering sysfs failed\n"); - goto err_register_sysfs; + goto err_out; } return 0; -err_register_sysfs: - lp55xx_unregister_leds(led, chip); -err_register_leds: +err_out: lp55xx_deinit_device(chip); err_init: return ret; @@ -369,7 +367,6 @@ static int lp8501_remove(struct i2c_client *client) lp8501_stop_engine(chip); lp55xx_unregister_sysfs(chip); - lp55xx_unregister_leds(led, chip); lp55xx_deinit_device(chip); return 0; From patchwork Tue May 26 16:46:48 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dan Murphy X-Patchwork-Id: 200014 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 AC780C433DF for ; Tue, 26 May 2020 16:48:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 87C9D207D8 for ; 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Tue, 26 May 2020 11:47:51 -0500 Received: from DLEE103.ent.ti.com (157.170.170.33) by DLEE115.ent.ti.com (157.170.170.26) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3; Tue, 26 May 2020 11:47:51 -0500 Received: from fllv0040.itg.ti.com (10.64.41.20) by DLEE103.ent.ti.com (157.170.170.33) 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; Tue, 26 May 2020 11:47:51 -0500 Received: from localhost (ileax41-snat.itg.ti.com [10.172.224.153]) by fllv0040.itg.ti.com (8.15.2/8.15.2) with ESMTP id 04QGlpAo013468; Tue, 26 May 2020 11:47:51 -0500 From: Dan Murphy To: , , CC: , , , Dan Murphy Subject: [PATCH v25 12/16] leds: lp5523: Update the lp5523 code to add multicolor brightness function Date: Tue, 26 May 2020 11:46:48 -0500 Message-ID: <20200526164652.2331-13-dmurphy@ti.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200526164652.2331-1-dmurphy@ti.com> References: <20200526164652.2331-1-dmurphy@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Add the multicolor brightness call back to support the multicolor framework. This call back allows setting brightness on grouped channels in a single function. Acked-by: Pavel Machek Acked-by: Jacek Anaszewski Signed-off-by: Dan Murphy --- drivers/leds/Kconfig | 1 + drivers/leds/leds-lp5523.c | 20 ++++++++++++++++++++ 2 files changed, 21 insertions(+) diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig index c127a931e250..8b28f73c810c 100644 --- a/drivers/leds/Kconfig +++ b/drivers/leds/Kconfig @@ -408,6 +408,7 @@ config LEDS_LP5521 config LEDS_LP5523 tristate "LED Support for TI/National LP5523/55231 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 TI/National Semiconductor diff --git a/drivers/leds/leds-lp5523.c b/drivers/leds/leds-lp5523.c index b076c16df9ab..9776dc72a764 100644 --- a/drivers/leds/leds-lp5523.c +++ b/drivers/leds/leds-lp5523.c @@ -791,6 +791,25 @@ static ssize_t store_master_fader_leds(struct device *dev, return ret; } +static int lp5523_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, + LP5523_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 lp5523_led_brightness(struct lp55xx_led *led) { struct lp55xx_chip *chip = led->chip; @@ -857,6 +876,7 @@ static struct lp55xx_device_config lp5523_cfg = { .max_channel = LP5523_MAX_LEDS, .post_init_device = lp5523_post_init_device, .brightness_fn = lp5523_led_brightness, + .multicolor_brightness_fn = lp5523_multicolor_brightness, .set_led_current = lp5523_set_led_current, .firmware_cb = lp5523_firmware_loaded, .run_engine = lp5523_run_engine, From patchwork Tue May 26 16:46:50 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dan Murphy X-Patchwork-Id: 200013 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 C18F8C433E2 for ; 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Tue, 26 May 2020 11:48:01 -0500 From: Dan Murphy To: , , CC: , , , Dan Murphy Subject: [PATCH v25 14/16] leds: lp55xx: Fix checkpatch file permissions issues Date: Tue, 26 May 2020 11:46:50 -0500 Message-ID: <20200526164652.2331-15-dmurphy@ti.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200526164652.2331-1-dmurphy@ti.com> References: <20200526164652.2331-1-dmurphy@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Fix the checkpatch warnings for the use of the file permission macros. In converting the file permissions to the DEVICE_ATTR_XX macros the call back function names needed to be updated within the code. This means that the lp55xx_ needed to be dropped in the name to keep in harmony with the ABI documentation. Acked-by: Pavel Machek Acked-by: Jacek Anaszewski Signed-off-by: Dan Murphy --- drivers/leds/leds-lp55xx-common.c | 22 ++++++++++------------ 1 file changed, 10 insertions(+), 12 deletions(-) diff --git a/drivers/leds/leds-lp55xx-common.c b/drivers/leds/leds-lp55xx-common.c index 19872d1435b3..82c392afeef7 100644 --- a/drivers/leds/leds-lp55xx-common.c +++ b/drivers/leds/leds-lp55xx-common.c @@ -83,7 +83,7 @@ static int lp55xx_post_init_device(struct lp55xx_chip *chip) return cfg->post_init_device(chip); } -static ssize_t lp55xx_show_current(struct device *dev, +static ssize_t led_current_show(struct device *dev, struct device_attribute *attr, char *buf) { @@ -92,7 +92,7 @@ static ssize_t lp55xx_show_current(struct device *dev, return scnprintf(buf, PAGE_SIZE, "%d\n", led->led_current); } -static ssize_t lp55xx_store_current(struct device *dev, +static ssize_t led_current_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t len) { @@ -116,7 +116,7 @@ static ssize_t lp55xx_store_current(struct device *dev, return len; } -static ssize_t lp55xx_show_max_current(struct device *dev, +static ssize_t max_current_show(struct device *dev, struct device_attribute *attr, char *buf) { @@ -125,9 +125,8 @@ static ssize_t lp55xx_show_max_current(struct device *dev, return scnprintf(buf, PAGE_SIZE, "%d\n", led->max_current); } -static DEVICE_ATTR(led_current, S_IRUGO | S_IWUSR, lp55xx_show_current, - lp55xx_store_current); -static DEVICE_ATTR(max_current, S_IRUGO , lp55xx_show_max_current, NULL); +static DEVICE_ATTR_RW(led_current); +static DEVICE_ATTR_RO(max_current); static struct attribute *lp55xx_led_attrs[] = { &dev_attr_led_current.attr, @@ -272,7 +271,7 @@ static int lp55xx_request_firmware(struct lp55xx_chip *chip) GFP_KERNEL, chip, lp55xx_firmware_loaded); } -static ssize_t lp55xx_show_engine_select(struct device *dev, +static ssize_t select_engine_show(struct device *dev, struct device_attribute *attr, char *buf) { @@ -282,7 +281,7 @@ static ssize_t lp55xx_show_engine_select(struct device *dev, return sprintf(buf, "%d\n", chip->engine_idx); } -static ssize_t lp55xx_store_engine_select(struct device *dev, +static ssize_t select_engine_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t len) { @@ -324,7 +323,7 @@ static inline void lp55xx_run_engine(struct lp55xx_chip *chip, bool start) chip->cfg->run_engine(chip, start); } -static ssize_t lp55xx_store_engine_run(struct device *dev, +static ssize_t run_engine_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t len) { @@ -349,9 +348,8 @@ static ssize_t lp55xx_store_engine_run(struct device *dev, return len; } -static DEVICE_ATTR(select_engine, S_IRUGO | S_IWUSR, - lp55xx_show_engine_select, lp55xx_store_engine_select); -static DEVICE_ATTR(run_engine, S_IWUSR, NULL, lp55xx_store_engine_run); +static DEVICE_ATTR_RW(select_engine); +static DEVICE_ATTR_WO(run_engine); static struct attribute *lp55xx_engine_attributes[] = { &dev_attr_select_engine.attr, From patchwork Tue May 26 16:46:51 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dan Murphy X-Patchwork-Id: 200012 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 C1BDEC433DF for ; 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Tue, 26 May 2020 11:48:07 -0500 From: Dan Murphy To: , , CC: , , , Dan Murphy Subject: [PATCH v25 15/16] leds: lp5523: Fix checkpatch issues in the code Date: Tue, 26 May 2020 11:46:51 -0500 Message-ID: <20200526164652.2331-16-dmurphy@ti.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200526164652.2331-1-dmurphy@ti.com> References: <20200526164652.2331-1-dmurphy@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Fix checkpatch errors and warnings for the LP5523.c device driver. Acked-by: Pavel Machek Acked-by: Jacek Anaszewski Signed-off-by: Dan Murphy --- drivers/leds/leds-lp5523.c | 19 ++++++++++--------- 1 file changed, 10 insertions(+), 9 deletions(-) diff --git a/drivers/leds/leds-lp5523.c b/drivers/leds/leds-lp5523.c index 9776dc72a764..f55d97258d5e 100644 --- a/drivers/leds/leds-lp5523.c +++ b/drivers/leds/leds-lp5523.c @@ -23,13 +23,13 @@ #define LP5523_PROGRAM_LENGTH 32 /* bytes */ /* Memory is used like this: - 0x00 engine 1 program - 0x10 engine 2 program - 0x20 engine 3 program - 0x30 engine 1 muxing info - 0x40 engine 2 muxing info - 0x50 engine 3 muxing info -*/ + * 0x00 engine 1 program + * 0x10 engine 2 program + * 0x20 engine 3 program + * 0x30 engine 1 muxing info + * 0x40 engine 2 muxing info + * 0x50 engine 3 muxing info + */ #define LP5523_MAX_LEDS 9 /* Registers */ @@ -326,7 +326,7 @@ static int lp5523_update_program_memory(struct lp55xx_chip *chip, const u8 *data, size_t size) { u8 pattern[LP5523_PROGRAM_LENGTH] = {0}; - unsigned cmd; + unsigned int cmd; char c[3]; int nrchars; int ret; @@ -468,6 +468,7 @@ static int lp5523_mux_parse(const char *buf, u16 *mux, size_t len) static void lp5523_mux_to_array(u16 led_mux, char *array) { int i, pos = 0; + for (i = 0; i < LP5523_MAX_LEDS; i++) pos += sprintf(array + pos, "%x", LED_ACTIVE(led_mux, i)); @@ -506,7 +507,7 @@ static int lp5523_load_mux(struct lp55xx_chip *chip, u16 mux, int nr) if (ret) return ret; - ret = lp55xx_write(chip, LP5523_REG_PROG_MEM , (u8)(mux >> 8)); + ret = lp55xx_write(chip, LP5523_REG_PROG_MEM, (u8)(mux >> 8)); if (ret) return ret;