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GET /api/patches/2222974/?format=api
{ "id": 2222974, "url": "http://patchwork.ozlabs.org/api/patches/2222974/?format=api", "web_url": "http://patchwork.ozlabs.org/project/rtc-linux/patch/20260414-s2mu005-pmic-v4-9-7fe7480577e6@disroot.org/", "project": { "id": 9, "url": "http://patchwork.ozlabs.org/api/projects/9/?format=api", "name": "Linux RTC development", "link_name": "rtc-linux", "list_id": "linux-rtc.vger.kernel.org", "list_email": "linux-rtc@vger.kernel.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260414-s2mu005-pmic-v4-9-7fe7480577e6@disroot.org>", "list_archive_url": null, "date": "2026-04-14T06:33:01", "name": "[v4,09/13] leds: flash: add support for Samsung S2M series PMIC flash LED device", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "8181753609084c3d4986d2f6bc5f17f578df74e4", "submitter": { "id": 88698, "url": "http://patchwork.ozlabs.org/api/people/88698/?format=api", "name": "Kaustabh Chakraborty", "email": "kauschluss@disroot.org" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/rtc-linux/patch/20260414-s2mu005-pmic-v4-9-7fe7480577e6@disroot.org/mbox/", "series": [ { "id": 499781, "url": "http://patchwork.ozlabs.org/api/series/499781/?format=api", "web_url": "http://patchwork.ozlabs.org/project/rtc-linux/list/?series=499781", "date": "2026-04-14T06:32:53", "name": "Support for Samsung S2MU005 PMIC and its sub-devices", "version": 4, "mbox": "http://patchwork.ozlabs.org/series/499781/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2222974/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2222974/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "\n <linux-rtc+bounces-6325-incoming=patchwork.ozlabs.org@vger.kernel.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "linux-rtc@vger.kernel.org" ], "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n secure) header.d=disroot.org header.i=@disroot.org header.a=rsa-sha256\n header.s=mail header.b=I+IkG7fy;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c0a:e001:db::12fc:5321; helo=sea.lore.kernel.org;\n envelope-from=linux-rtc+bounces-6325-incoming=patchwork.ozlabs.org@vger.kernel.org;\n receiver=patchwork.ozlabs.org)", "smtp.subspace.kernel.org;\n\tdkim=pass (2048-bit key) header.d=disroot.org header.i=@disroot.org\n header.b=\"I+IkG7fy\"", "smtp.subspace.kernel.org;\n arc=none smtp.client-ip=178.21.23.139", "smtp.subspace.kernel.org;\n dmarc=pass (p=reject dis=none) header.from=disroot.org", "smtp.subspace.kernel.org;\n spf=pass smtp.mailfrom=disroot.org" ], "Received": [ "from sea.lore.kernel.org (sea.lore.kernel.org\n [IPv6:2600:3c0a:e001:db::12fc:5321])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519)\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4fvvkw20CFz1y2d\n\tfor <incoming@patchwork.ozlabs.org>; Tue, 14 Apr 2026 16:39:20 +1000 (AEST)", "from smtp.subspace.kernel.org (conduit.subspace.kernel.org\n [100.90.174.1])\n\tby sea.lore.kernel.org (Postfix) with ESMTP id 747623062C39\n\tfor <incoming@patchwork.ozlabs.org>; Tue, 14 Apr 2026 06:34:16 +0000 (UTC)", "from localhost.localdomain (localhost.localdomain [127.0.0.1])\n\tby smtp.subspace.kernel.org (Postfix) with ESMTP id 4DCC836DA0F;\n\tTue, 14 Apr 2026 06:34:16 +0000 (UTC)", "from layka.disroot.org (layka.disroot.org [178.21.23.139])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits))\n\t(No client certificate requested)\n\tby smtp.subspace.kernel.org (Postfix) with ESMTPS id 740EB30C629;\n\tTue, 14 Apr 2026 06:34:14 +0000 (UTC)", "from [127.0.0.1] (localhost [127.0.0.1])\n\tby disroot.org (Postfix) with ESMTP id 051B725F15;\n\tTue, 14 Apr 2026 08:34:13 +0200 (CEST)", "from layka.disroot.org ([127.0.0.1])\n by localhost (disroot.org [127.0.0.1]) (amavis, port 10024) with ESMTP\n id PpZf39EKrc29; Tue, 14 Apr 2026 08:34:12 +0200 (CEST)" ], "ARC-Seal": "i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116;\n\tt=1776148456; cv=none;\n b=L0l4el2scV2vMI0UavDI/t5NQlZAj20zYgdt0a+jKgfLRBpZCA7IamJOng4APNcsDbgvzFILp1Jq/11jxa4sgSDNp8p4jHLnYGE1G6A2ELBNLNx3GV4PVp+0bi2CFy4aqqJWpJWQOOQZxsXZ8jGdP0OvSVxz1eXSReB+Zj+0www=", "ARC-Message-Signature": "i=1; a=rsa-sha256; d=subspace.kernel.org;\n\ts=arc-20240116; t=1776148456; c=relaxed/simple;\n\tbh=0SAV+AAoA6bInevSPwmQV540E2srsbI0Wb+E7XfjiJQ=;\n\th=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References:\n\t In-Reply-To:To:Cc;\n b=okdms3OTJXnTvs0adzZAh7ZmO8e70sZzYm3m3p/E1LXnGNJ3duNrQafk8jnjpV4RbYaeXbbaDZweDsrPmSBo2KPh0JrVot/O5Gcam6rSWcSDCp7to+p7gOueO7QNsVrJo77qCtEAe4um9IGJOzyw21XwSdCgpZMrXUVsakm1ddo=", "ARC-Authentication-Results": "i=1; smtp.subspace.kernel.org;\n dmarc=pass (p=reject dis=none) header.from=disroot.org;\n spf=pass smtp.mailfrom=disroot.org;\n dkim=pass (2048-bit key) header.d=disroot.org header.i=@disroot.org\n header.b=I+IkG7fy; arc=none smtp.client-ip=178.21.23.139", "X-Virus-Scanned": "SPAM Filter at disroot.org", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/simple; d=disroot.org; s=mail;\n\tt=1776148451; bh=0SAV+AAoA6bInevSPwmQV540E2srsbI0Wb+E7XfjiJQ=;\n\th=From:Date:Subject:References:In-Reply-To:To:Cc;\n\tb=I+IkG7fyRpr7RA8Ohi2f2ltvHE1k8HOH1ii7c0iMlor9VVgR2uA4L8IlguzeQaTTu\n\t 2ZRMu0mZgPfc3lNI+2+TcVtdh4LL2eUEc10/mXkc+FWEtX2YT3fzNwZghlxmDgJYFt\n\t er2rKUgQM/kJXfIDtBr8Y1cubwQYMpcQ0DeEwRkSEs8Yr7iBrDik4hcdOVnf4Yfe42\n\t psT1EzZ/NOMsp9IOZYW37hQ+UE20jGQp7kAI+JCgUholLAuOFewQ7SMuPTuuKmtrOl\n\t eBH7YCHDhS2h84nDBr+YjiOBkgOO6I/OdoBr2tVU8rTgugKs5xRGmYX45Dn8f9shOW\n\t uu1qJsGW/vPRQ==", "From": "Kaustabh Chakraborty <kauschluss@disroot.org>", "Date": "Tue, 14 Apr 2026 12:03:01 +0530", "Subject": "[PATCH v4 09/13] leds: flash: add support for Samsung S2M series\n PMIC flash LED device", "Precedence": "bulk", "X-Mailing-List": "linux-rtc@vger.kernel.org", "List-Id": "<linux-rtc.vger.kernel.org>", "List-Subscribe": "<mailto:linux-rtc+subscribe@vger.kernel.org>", "List-Unsubscribe": "<mailto:linux-rtc+unsubscribe@vger.kernel.org>", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=\"utf-8\"", "Content-Transfer-Encoding": "7bit", "Message-Id": "<20260414-s2mu005-pmic-v4-9-7fe7480577e6@disroot.org>", "References": "<20260414-s2mu005-pmic-v4-0-7fe7480577e6@disroot.org>", "In-Reply-To": "<20260414-s2mu005-pmic-v4-0-7fe7480577e6@disroot.org>", "To": "Lee Jones <lee@kernel.org>, Pavel Machek <pavel@kernel.org>,\n Rob Herring <robh@kernel.org>, Krzysztof Kozlowski <krzk+dt@kernel.org>,\n Conor Dooley <conor+dt@kernel.org>, MyungJoo Ham <myungjoo.ham@samsung.com>,\n Chanwoo Choi <cw00.choi@samsung.com>, Sebastian Reichel <sre@kernel.org>,\n Krzysztof Kozlowski <krzk@kernel.org>,\n =?utf-8?q?Andr=C3=A9_Draszik?= <andre.draszik@linaro.org>,\n Alexandre Belloni <alexandre.belloni@bootlin.com>,\n Jonathan Corbet <corbet@lwn.net>, Shuah Khan <skhan@linuxfoundation.org>,\n Nam Tran <trannamatk@gmail.com>,\n =?utf-8?b?xYF1a2FzeiBMZWJpZWR6acWEc2tp?= <kernel@lvkasz.us>", "Cc": "linux-leds@vger.kernel.org, devicetree@vger.kernel.org,\n linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org,\n linux-samsung-soc@vger.kernel.org, linux-rtc@vger.kernel.org,\n linux-doc@vger.kernel.org, Kaustabh Chakraborty <kauschluss@disroot.org>" }, "content": "Add support for flash LEDs found in certain Samsung S2M series PMICs.\nThe device has two channels for LEDs, typically for the back and front\ncameras in mobile devices. Both channels can be independently\ncontrolled, and can be operated in torch or flash modes.\n\nThe driver includes initial support for the S2MU005 PMIC flash LEDs.\n\nSigned-off-by: Kaustabh Chakraborty <kauschluss@disroot.org>\n---\n drivers/leds/flash/Kconfig | 12 ++\n drivers/leds/flash/Makefile | 1 +\n drivers/leds/flash/leds-s2m-flash.c | 357 ++++++++++++++++++++++++++++++++++++\n 3 files changed, 370 insertions(+)", "diff": "diff --git a/drivers/leds/flash/Kconfig b/drivers/leds/flash/Kconfig\nindex 5e08102a67841..be62e05277429 100644\n--- a/drivers/leds/flash/Kconfig\n+++ b/drivers/leds/flash/Kconfig\n@@ -114,6 +114,18 @@ config LEDS_RT8515\n \t To compile this driver as a module, choose M here: the module\n \t will be called leds-rt8515.\n \n+config LEDS_S2M_FLASH\n+\ttristate \"Samsung S2M series PMICs flash/torch LED support\"\n+\tdepends on LEDS_CLASS\n+\tdepends on MFD_SEC_CORE\n+\tdepends on V4L2_FLASH_LED_CLASS || !V4L2_FLASH_LED_CLASS\n+\tselect REGMAP_IRQ\n+\thelp\n+\t This option enables support for the flash/torch LEDs found in\n+\t certain Samsung S2M series PMICs, such as the S2MU005. It has\n+\t a LED channel dedicated for every physical LED. The LEDs can\n+\t be controlled in flash and torch modes.\n+\n config LEDS_SGM3140\n \ttristate \"LED support for the SGM3140\"\n \tdepends on V4L2_FLASH_LED_CLASS || !V4L2_FLASH_LED_CLASS\ndiff --git a/drivers/leds/flash/Makefile b/drivers/leds/flash/Makefile\nindex 712fb737a428e..44e6c1b4beb37 100644\n--- a/drivers/leds/flash/Makefile\n+++ b/drivers/leds/flash/Makefile\n@@ -10,6 +10,7 @@ obj-$(CONFIG_LEDS_MAX77693)\t+= leds-max77693.o\n obj-$(CONFIG_LEDS_QCOM_FLASH)\t+= leds-qcom-flash.o\n obj-$(CONFIG_LEDS_RT4505)\t+= leds-rt4505.o\n obj-$(CONFIG_LEDS_RT8515)\t+= leds-rt8515.o\n+obj-$(CONFIG_LEDS_S2M_FLASH)\t+= leds-s2m-flash.o\n obj-$(CONFIG_LEDS_SGM3140)\t+= leds-sgm3140.o\n obj-$(CONFIG_LEDS_SY7802)\t+= leds-sy7802.o\n obj-$(CONFIG_LEDS_TPS6131X)\t+= leds-tps6131x.o\ndiff --git a/drivers/leds/flash/leds-s2m-flash.c b/drivers/leds/flash/leds-s2m-flash.c\nnew file mode 100644\nindex 0000000000000..1ec592417c344\n--- /dev/null\n+++ b/drivers/leds/flash/leds-s2m-flash.c\n@@ -0,0 +1,357 @@\n+// SPDX-License-Identifier: GPL-2.0\n+/*\n+ * Flash and Torch LED Driver for Samsung S2M series PMICs.\n+ *\n+ * Copyright (c) 2015 Samsung Electronics Co., Ltd\n+ * Copyright (c) 2025 Kaustabh Chakraborty <kauschluss@disroot.org>\n+ */\n+\n+#include <linux/container_of.h>\n+#include <linux/led-class-flash.h>\n+#include <linux/mfd/samsung/core.h>\n+#include <linux/mfd/samsung/s2mu005.h>\n+#include <linux/module.h>\n+#include <linux/of.h>\n+#include <linux/platform_device.h>\n+#include <linux/regmap.h>\n+#include <media/v4l2-flash-led-class.h>\n+\n+#define MAX_CHANNELS\t2\n+\n+struct s2m_led {\n+\tstruct regmap *regmap;\n+\tstruct led_classdev_flash fled;\n+\tstruct v4l2_flash *v4l2_flash;\n+\t/*\n+\t * The mutex object prevents the concurrent access of flash control\n+\t * registers by the LED and V4L2 subsystems.\n+\t */\n+\tstruct mutex lock;\n+\tunsigned int reg_enable;\n+\tu8 channel;\n+\tu8 flash_brightness;\n+\tu8 flash_timeout;\n+};\n+\n+static struct s2m_led *to_s2m_led(struct led_classdev_flash *fled)\n+{\n+\treturn container_of(fled, struct s2m_led, fled);\n+}\n+\n+static struct led_classdev_flash *to_s2m_fled(struct led_classdev *cdev)\n+{\n+\treturn container_of(cdev, struct led_classdev_flash, led_cdev);\n+}\n+\n+static int s2m_fled_flash_brightness_set(struct led_classdev_flash *fled, u32 brightness)\n+{\n+\tstruct s2m_led *led = to_s2m_led(fled);\n+\tstruct led_flash_setting *setting = &fled->brightness;\n+\n+\tled->flash_brightness = (brightness - setting->min) / setting->step;\n+\n+\treturn 0;\n+}\n+\n+static int s2m_fled_flash_timeout_set(struct led_classdev_flash *fled, u32 timeout)\n+{\n+\tstruct s2m_led *led = to_s2m_led(fled);\n+\tstruct led_flash_setting *setting = &fled->timeout;\n+\n+\tled->flash_timeout = (timeout - setting->min) / setting->step;\n+\n+\treturn 0;\n+}\n+\n+#if IS_ENABLED(CONFIG_V4L2_FLASH_LED_CLASS)\n+static int s2m_fled_flash_external_strobe_set(struct v4l2_flash *v4l2_flash, bool enable)\n+{\n+\tstruct s2m_led *led = to_led(v4l2_flash->fled_cdev);\n+\n+\tmutex_lock(&led->lock);\n+\n+\tled->fled.ops->strobe_set(&led->fled, enable);\n+\n+\tmutex_unlock(&led->lock);\n+\n+\treturn 0;\n+}\n+\n+static const struct v4l2_flash_ops s2m_fled_v4l2_flash_ops = {\n+\t.external_strobe_set = s2m_fled_flash_external_strobe_set,\n+};\n+#else\n+static const struct v4l2_flash_ops s2m_fled_v4l2_flash_ops;\n+#endif\n+\n+static void s2m_fled_v4l2_flash_release(void *v4l2_flash)\n+{\n+\tv4l2_flash_release(v4l2_flash);\n+}\n+\n+static int s2mu005_fled_torch_brightness_set(struct led_classdev *cdev, enum led_brightness value)\n+{\n+\tstruct s2m_led *led = to_s2m_led(to_s2m_fled(cdev));\n+\tint ret;\n+\n+\tmutex_lock(&led->lock);\n+\n+\tif (!value) {\n+\t\tret = regmap_clear_bits(led->regmap, led->reg_enable,\n+\t\t\t\t\tS2MU005_FLED_TORCH_EN(led->channel));\n+\t\tif (ret < 0)\n+\t\t\tdev_err(cdev->dev, \"failed to disable torch LED\\n\");\n+\t\tgoto unlock;\n+\t}\n+\n+\tret = regmap_update_bits(led->regmap, S2MU005_REG_FLED_CH_CTRL1(led->channel),\n+\t\t\t\t S2MU005_FLED_TORCH_IOUT,\n+\t\t\t\t FIELD_PREP(S2MU005_FLED_TORCH_IOUT, value - 1));\n+\tif (ret < 0) {\n+\t\tdev_err(cdev->dev, \"failed to set torch current\\n\");\n+\t\tgoto unlock;\n+\t}\n+\n+\tret = regmap_set_bits(led->regmap, led->reg_enable, S2MU005_FLED_TORCH_EN(led->channel));\n+\tif (ret < 0) {\n+\t\tdev_err(cdev->dev, \"failed to enable torch LED\\n\");\n+\t\tgoto unlock;\n+\t}\n+\n+unlock:\n+\tmutex_unlock(&led->lock);\n+\n+\treturn ret;\n+}\n+\n+static int s2mu005_fled_flash_strobe_set(struct led_classdev_flash *fled, bool state)\n+{\n+\tstruct s2m_led *led = to_s2m_led(fled);\n+\tint ret;\n+\n+\tmutex_lock(&led->lock);\n+\n+\tret = regmap_clear_bits(led->regmap, led->reg_enable, S2MU005_FLED_FLASH_EN(led->channel));\n+\tif (ret < 0) {\n+\t\tdev_err(fled->led_cdev.dev, \"failed to disable flash LED\\n\");\n+\t\tgoto unlock;\n+\t}\n+\n+\tif (!state)\n+\t\tgoto unlock;\n+\n+\tret = regmap_update_bits(led->regmap, S2MU005_REG_FLED_CH_CTRL0(led->channel),\n+\t\t\t\t S2MU005_FLED_FLASH_IOUT,\n+\t\t\t\t FIELD_PREP(S2MU005_FLED_FLASH_IOUT, led->flash_brightness));\n+\tif (ret < 0) {\n+\t\tdev_err(fled->led_cdev.dev, \"failed to set flash brightness\\n\");\n+\t\tgoto unlock;\n+\t}\n+\n+\tret = regmap_update_bits(led->regmap, S2MU005_REG_FLED_CH_CTRL3(led->channel),\n+\t\t\t\t S2MU005_FLED_FLASH_TIMEOUT,\n+\t\t\t\t FIELD_PREP(S2MU005_FLED_FLASH_TIMEOUT, led->flash_timeout));\n+\tif (ret < 0) {\n+\t\tdev_err(fled->led_cdev.dev, \"failed to set flash timeout\\n\");\n+\t\tgoto unlock;\n+\t}\n+\n+\tret = regmap_set_bits(led->regmap, led->reg_enable, S2MU005_FLED_FLASH_EN(led->channel));\n+\tif (ret < 0) {\n+\t\tdev_err(fled->led_cdev.dev, \"failed to enable flash LED\\n\");\n+\t\tgoto unlock;\n+\t}\n+\n+unlock:\n+\tmutex_unlock(&led->lock);\n+\n+\treturn 0;\n+}\n+\n+static int s2mu005_fled_flash_strobe_get(struct led_classdev_flash *fled, bool *state)\n+{\n+\tstruct s2m_led *led = to_s2m_led(fled);\n+\tu32 val;\n+\tint ret;\n+\n+\tmutex_lock(&led->lock);\n+\n+\tret = regmap_read(led->regmap, S2MU005_REG_FLED_STATUS, &val);\n+\tif (ret < 0) {\n+\t\tdev_err(fled->led_cdev.dev, \"failed to fetch LED status\");\n+\t\tgoto unlock;\n+\t}\n+\n+\t*state = !!(val & S2MU005_FLED_FLASH_STATUS(led->channel));\n+\n+unlock:\n+\tmutex_unlock(&led->lock);\n+\n+\treturn ret;\n+}\n+\n+static const struct led_flash_ops s2mu005_fled_flash_ops = {\n+\t.flash_brightness_set = s2m_fled_flash_brightness_set,\n+\t.timeout_set = s2m_fled_flash_timeout_set,\n+\t.strobe_set = s2mu005_fled_flash_strobe_set,\n+\t.strobe_get = s2mu005_fled_flash_strobe_get,\n+};\n+\n+static int s2mu005_fled_init(struct s2m_led *led, struct device *dev, struct regmap *regmap,\n+\t\t\t unsigned int nr_channels)\n+{\n+\tunsigned int val;\n+\tint i, ret;\n+\n+\t/* Enable the LED channels. */\n+\tret = regmap_set_bits(regmap, S2MU005_REG_FLED_CTRL1, S2MU005_FLED_CH_EN);\n+\tif (ret < 0)\n+\t\treturn dev_err_probe(dev, ret, \"failed to enable LED channels\\n\");\n+\n+\tret = regmap_read(regmap, S2MU005_REG_ID, &val);\n+\tif (ret < 0)\n+\t\treturn dev_err_probe(dev, ret, \"failed to read revision\\n\");\n+\n+\tfor (i = 0; i < nr_channels; i++) {\n+\t\t/*\n+\t\t * Read the revision register. Revision EVT0 has the register\n+\t\t * at CTRL4, while EVT1 and higher have it at CTRL6.\n+\t\t */\n+\t\tif (FIELD_GET(S2MU005_ID_MASK, val) == 0)\n+\t\t\tled[i].reg_enable = S2MU005_REG_FLED_CTRL4;\n+\t\telse\n+\t\t\tled[i].reg_enable = S2MU005_REG_FLED_CTRL6;\n+\t}\n+\n+\treturn 0;\n+}\n+\n+static int s2mu005_fled_init_channel(struct s2m_led *led, struct device *dev,\n+\t\t\t\t struct fwnode_handle *fwnp)\n+{\n+\tstruct led_classdev *cdev = &led->fled.led_cdev;\n+\tstruct led_init_data init_data = {};\n+\tstruct v4l2_flash_config v4l2_cfg = {};\n+\tint ret;\n+\tcdev->max_brightness = 16;\n+\tcdev->brightness_set_blocking = s2mu005_fled_torch_brightness_set,\n+\tcdev->flags |= LED_DEV_CAP_FLASH;\n+\n+\tled->fled.timeout.min = 62000;\n+\tled->fled.timeout.step = 62000;\n+\tled->fled.timeout.max = 992000;\n+\tled->fled.timeout.val = 992000;\n+\n+\tled->fled.brightness.min = 25000;\n+\tled->fled.brightness.step = 25000;\n+\tled->fled.brightness.max = 375000; /* 400000 causes flickering */\n+\tled->fled.brightness.val = 375000;\n+\n+\ts2m_fled_flash_timeout_set(&led->fled, led->fled.timeout.val);\n+\ts2m_fled_flash_brightness_set(&led->fled, led->fled.brightness.val);\n+\n+\tled->fled.ops = &s2mu005_fled_flash_ops;\n+\n+\tinit_data.fwnode = fwnp;\n+\tret = devm_led_classdev_flash_register_ext(dev, &led->fled, &init_data);\n+\tif (ret < 0)\n+\t\treturn dev_err_probe(dev, ret, \"failed to create LED flash device\\n\");\n+\n+\tv4l2_cfg.intensity.min = led->fled.timeout.min;\n+\tv4l2_cfg.intensity.step = led->fled.timeout.step;\n+\tv4l2_cfg.intensity.max = led->fled.timeout.max;\n+\tv4l2_cfg.intensity.val = led->fled.timeout.val;\n+\n+\tv4l2_cfg.has_external_strobe = true;\n+\n+\tled->v4l2_flash = v4l2_flash_init(dev, fwnp, &led->fled, &s2m_fled_v4l2_flash_ops,\n+\t\t\t\t\t &v4l2_cfg);\n+\tif (IS_ERR(led->v4l2_flash)) {\n+\t\tv4l2_flash_release(led->v4l2_flash);\n+\t\treturn dev_err_probe(dev, PTR_ERR(led->v4l2_flash),\n+\t\t\t\t \"failed to create V4L2 flash device\\n\");\n+\t}\n+\n+\tret = devm_add_action_or_reset(dev, (void *)s2m_fled_v4l2_flash_release, led->v4l2_flash);\n+\tif (ret < 0)\n+\t\treturn dev_err_probe(dev, ret, \"failed to add cleanup action\\n\");\n+\n+\treturn 0;\n+}\n+\n+static int s2m_fled_probe(struct platform_device *pdev)\n+{\n+\tstruct device *dev = &pdev->dev;\n+\tstruct sec_pmic_dev *ddata = dev_get_drvdata(dev->parent);\n+\tstruct s2m_led *led;\n+\tint ret;\n+\n+\tled = devm_kzalloc(dev, sizeof(*led) * MAX_CHANNELS, GFP_KERNEL);\n+\tif (!led)\n+\t\treturn -ENOMEM;\n+\n+\tswitch (platform_get_device_id(pdev)->driver_data) {\n+\tcase S2MU005:\n+\t\tret = s2mu005_fled_init(led, dev, ddata->regmap_pmic, MAX_CHANNELS);\n+\t\tif (ret)\n+\t\t\treturn ret;\n+\t\tbreak;\n+\tdefault:\n+\t\treturn dev_err_probe(dev, -ENODEV, \"device type %d is not supported by driver\\n\",\n+\t\t\t\t ddata->device_type);\n+\t}\n+\n+\tdevice_for_each_child_node_scoped(dev, child) {\n+\t\tu32 reg;\n+\n+\t\tif (fwnode_property_read_u32(child, \"reg\", ®))\n+\t\t\tcontinue;\n+\n+\t\tif (led[reg].regmap) {\n+\t\t\tdev_warn(dev, \"duplicate node for channel %d\\n\", reg);\n+\t\t\tcontinue;\n+\t\t}\n+\n+\t\tled[reg].regmap = ddata->regmap_pmic;\n+\t\tled[reg].channel = (u8)reg;\n+\n+\t\tret = devm_mutex_init(dev, &led[reg].lock);\n+\t\tif (ret)\n+\t\t\treturn dev_err_probe(dev, ret, \"failed to create mutex\\n\");\n+\n+\t\tswitch (platform_get_device_id(pdev)->driver_data) {\n+\t\tcase S2MU005:\n+\t\t\tret = s2mu005_fled_init_channel(led + reg, dev, child);\n+\t\t\tif (ret < 0)\n+\t\t\t\treturn ret;\n+\t\t\tbreak;\n+\t\t}\n+\t}\n+\n+\treturn 0;\n+}\n+\n+static const struct platform_device_id s2m_fled_id_table[] = {\n+\t{ \"s2mu005-flash\", S2MU005 },\n+\t{ /* sentinel */ },\n+};\n+MODULE_DEVICE_TABLE(platform, s2m_fled_id_table);\n+\n+static const struct of_device_id s2m_fled_of_match_table[] = {\n+\t{ .compatible = \"samsung,s2mu005-flash\", .data = (void *)S2MU005 },\n+\t{ /* sentinel */ },\n+};\n+MODULE_DEVICE_TABLE(of, s2m_fled_of_match_table);\n+\n+static struct platform_driver s2m_fled_driver = {\n+\t.driver = {\n+\t\t.name = \"s2m-flash\",\n+\t},\n+\t.probe = s2m_fled_probe,\n+\t.id_table = s2m_fled_id_table,\n+};\n+module_platform_driver(s2m_fled_driver);\n+\n+MODULE_DESCRIPTION(\"Flash/Torch LED Driver For Samsung S2M Series PMICs\");\n+MODULE_AUTHOR(\"Kaustabh Chakraborty <kauschluss@disroot.org>\");\n+MODULE_LICENSE(\"GPL\");\n", "prefixes": [ "v4", "09/13" ] }