From patchwork Wed Dec 4 20:09:58 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dzmitry Sankouski X-Patchwork-Id: 847463 Received: from mail-ed1-f48.google.com (mail-ed1-f48.google.com [209.85.208.48]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8ABFB1F03FE; Wed, 4 Dec 2024 20:10:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.208.48 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733343031; cv=none; b=WMj7NrwoGdk31MhvIm+Uu/QyL+pLAQ9gqM1iPIwvj2PeUgUT71tfxnKZL2FC3rQRfSTRh/cX1LfPcsXXQIutFvbpvkCbO69f37f7McaLW8ao5Y8HWYCt3gnJft06sV8DDonZS3oAcbp8v4DJ2GUJpE7t3oBEPVvbbDATc8t6/f4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733343031; c=relaxed/simple; bh=FLDNvAuq3/6qaex7/kC1Mf8nAkSUaJQtIRpzVO9dmHg=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=gSozxmYGvNdW09xKU/t7rP+8oQ+rFgNG3Rs8L2EPGXBIvIZ7RY0VzzM8N9YEKMyN5FtAzpbmPWzC2w+uoAk5y8pL/w74IJRnVuXES/5vvblFnJziCVtpXAJc0QdZ4QLpLsjGF8EL5evWnslI+XKHPqEQDrFGFtsZBOA5QJzV1oc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=UF1TBhyP; arc=none smtp.client-ip=209.85.208.48 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="UF1TBhyP" Received: by mail-ed1-f48.google.com with SMTP id 4fb4d7f45d1cf-5d0b922a637so157534a12.1; Wed, 04 Dec 2024 12:10:27 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1733343025; x=1733947825; darn=vger.kernel.org; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=pkHPjPGGhWngdfovjO3RlXuy1EHABasAUGQbs5Wu7fs=; b=UF1TBhyPcrFpyggb22s59Xxel0YPbLNBwYwNPWp0oiC7WXy6Ij03P6WsBHGWA6g3Ql KSodRn+2BKcXqYQbusSjVZzSLhC+9DOxC3ZvX0YZ3GS1/DySyyAvCrMTRVE3Pb85sAk7 0K6Y+VXwUCIB60XSJDtET0m5TVDfA01F5synJguNAD2y/YH2HtWumGxZrUMRbve7uz61 forNK+VIDIQsOi+pOXYRVvbpWMCFx87Sl9urU1MtRqwVNtH9nFs4GnePmiakW5sAwqWZ VPOYgqirqM+1TodVUQqe9Xeb05PlVmcDuNfzQSL2on7hmdD/j7iVGjYJvBoLwh+G8NL1 bJhw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1733343025; x=1733947825; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=pkHPjPGGhWngdfovjO3RlXuy1EHABasAUGQbs5Wu7fs=; b=fXcB+IJF1IM0hXuTnVj9I0tC53PUDv6a6fNugIP7t5f0epOv3ZR97Emyv7TrT2AQgN KYTpK7um2wAD8Y9U8DNdXLxLagqIaQdOrRRpTucBkxv2YC1FRnanolKL7seJt+oVolRw c2o8PcyNlv4Fn2NlcvzuWaoxIXFknAMB+5jSns7TWJLcjBM4u4mJcT9weZMdpQtbz+K2 2PzpyiTQqgE/FZRz1z7KRF/6K9DcqsipWZDdqTEyJqnSjAPrxnGSZg+61E0o9e1kfnwJ AE1RbDhk3AqTLy0ArHZPoWdTakio707k4oCuGK2H5ZGMpaL66gxMY3qB+2AVtXbIeE2H XGuA== X-Forwarded-Encrypted: i=1; AJvYcCU1F6IN5ZISSy6vq8AJcwSNvIgUwNsGOML4fMAMBZpt37UlFdlioq1MMFYF4HdLh4FXKJuWwnBC8+VQ@vger.kernel.org, AJvYcCVkQXWrVl9jxAUfMxIMAkRZYnMShtzluhw0L86ixE+lwH8SS7p+Ns2DP+DAI+jgoVkjOyemenoRQC8TqA==@vger.kernel.org, AJvYcCWfX+EpWJMFEO6ejYJqF4Yetsgrn41WbIxcZ5ZsC/Fqjrn/jy1wYFJ3VKH/sWbjHXQp2+BOMB1qrmiRvac=@vger.kernel.org, AJvYcCXMNrj8UOLbTJDkeeg2CsHrNq2VV0h7+872UGJ7BkaHHzdufADA2JARfFVQ7PAtMQfFkaNyRZlPQlNeq31M@vger.kernel.org X-Gm-Message-State: AOJu0YwnYRg7xDOtF3svjE7w4jxuaUui6+043bQeoeNKexQVlmI6sh/W XdbE7QqpfuizRd0gk2ff1n/0TR/sBN1+u2G67HNjnFPYDnmseQsnp9gARQ== X-Gm-Gg: ASbGncsV8rKuho8Tg8E/T9gTTqHS294eV+kD51o5LZSb+s3hI/GdiW2XCifnEcpgEdU jmgS8Ripa4NUwuUPwcSgQtg/+gyZm2Kqu/g7VCMeKKQgR3AYIiDpG3ZzwFCzr3ehgLdsH8sa3pb c7Uap3DbB+G9TJibOTnGu3J+Dvmxut3cx1T8Rj32dzpoCuD2dXzFarb4X89/X/2XCGb8qGinI+A vhweufzjElJ2Kle6eqPHPTwoujI5cRsvu6RVU1yzlnVccJc X-Google-Smtp-Source: AGHT+IG3w125Jrc73sXT/Az9X+5pqEzbFBK/z2OTDxw3iUDnK2Qx73MHg5zHNmqSWG6rfEC/+9P7hg== X-Received: by 2002:aa7:dc01:0:b0:5d1:2377:5b07 with SMTP id 4fb4d7f45d1cf-5d123775c69mr1069310a12.6.1733343025271; Wed, 04 Dec 2024 12:10:25 -0800 (PST) Received: from [127.0.1.1] ([46.53.242.72]) by smtp.googlemail.com with ESMTPSA id 4fb4d7f45d1cf-5d0b7ce5584sm6266526a12.54.2024.12.04.12.10.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 04 Dec 2024 12:10:24 -0800 (PST) From: Dzmitry Sankouski Date: Wed, 04 Dec 2024 23:09:58 +0300 Subject: [PATCH v10 8/8] leds: max77705: Add LEDs support Precedence: bulk X-Mailing-List: linux-input@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20241204-starqltechn_integration_upstream-v10-8-7de85e48e562@gmail.com> References: <20241204-starqltechn_integration_upstream-v10-0-7de85e48e562@gmail.com> In-Reply-To: <20241204-starqltechn_integration_upstream-v10-0-7de85e48e562@gmail.com> To: Sebastian Reichel , Chanwoo Choi , Krzysztof Kozlowski , Lee Jones , Rob Herring , Conor Dooley , Dmitry Torokhov , Pavel Machek , Hans de Goede , Marek Szyprowski , Sebastian Krzyszkowiak , Purism Kernel Team Cc: linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-input@vger.kernel.org, linux-leds@vger.kernel.org, Dzmitry Sankouski X-Mailer: b4 0.14.0 X-Developer-Signature: v=1; a=ed25519-sha256; t=1733343003; l=12665; i=dsankouski@gmail.com; s=20240619; h=from:subject:message-id; bh=FLDNvAuq3/6qaex7/kC1Mf8nAkSUaJQtIRpzVO9dmHg=; b=r2iae3XeoifZaRn1gpcfCzmMio2WlECzdrJIi35eaLya7kBjHUWIFwc0ABL5Rd8p1tIhDQ+ci Us9E2E7SXyDDs/M8jZThGcVpghm9yswAU9FW4DE2YmWJIo+zx+8KsSJ X-Developer-Key: i=dsankouski@gmail.com; a=ed25519; pk=YJcXFcN1EWrzBYuiE2yi5Mn6WLn6L1H71J+f7X8fMag= This adds basic support for LEDs for the max77705 PMIC. Signed-off-by: Dzmitry Sankouski --- Changes for v10: - remove multiple line break - replace en_shift, reg_brightness values with macros - add support for leds-class-multicolor (inspired from leds-qcom-lpg.c): - replace max77705_to_led helper with container_of, because it's no longer covers all cases - add max77705_add_led, max77705_parse_subled functions to parse device tree - split max77705_led_brightness_set into *multi and *single versions Changes for v8: - join line where possible to fit in 100 chars - change comment style C++ -> C Changes for v6: - change compatible suffix to 'rgb' - remove I2C dependency in Kconfig - remove copyright and author from 'based on' header statement - replace MFD abbreviation with PMIC - MAINTAINERS: alphabetic order - max77705_rgb_blink: replace ternary operators with if..else if sequence - max77705_rgb_blink: move hardcoded numbers to constants - max77705_led_brightness_set: move ret to the bottom - s/map/regmap - replace device_for_each_child_node with scoped version - s/rv/ret Changes for v5: - use same hardware name in Kconfig and module descriptions - remove copyrighter owner from module authors Changes in v4: - inline BLINK_(ON|OFF) macro - remove camel case - drop backwards compatibility(new driver) - drop module alias --- MAINTAINERS | 1 + drivers/leds/Kconfig | 6 ++++ drivers/leds/Makefile | 1 + drivers/leds/leds-max77705.c | 267 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ include/linux/mfd/max77705-private.h | 17 ++++++++++ 5 files changed, 292 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index b269d0456da3..7a21e871ba7c 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -14188,6 +14188,7 @@ F: Documentation/devicetree/bindings/*/maxim,max77693.yaml F: Documentation/devicetree/bindings/*/maxim,max77705*.yaml F: Documentation/devicetree/bindings/*/maxim,max77843.yaml F: Documentation/devicetree/bindings/clock/maxim,max77686.txt +F: drivers/leds/leds-max77705.c F: drivers/*/*max77843.c F: drivers/*/max14577*.c F: drivers/*/max77686*.c diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig index b784bb74a837..27ce55b32543 100644 --- a/drivers/leds/Kconfig +++ b/drivers/leds/Kconfig @@ -753,6 +753,12 @@ config LEDS_MAX77650 help LEDs driver for MAX77650 family of PMICs from Maxim Integrated. +config LEDS_MAX77705 + tristate "LED support for Maxim MAX77705 PMIC" + depends on MFD_MAX77705 && LEDS_CLASS + help + LED driver for MAX77705 PMIC from Maxim Integrated. + config LEDS_MAX8997 tristate "LED support for MAX8997 PMIC" depends on LEDS_CLASS && MFD_MAX8997 diff --git a/drivers/leds/Makefile b/drivers/leds/Makefile index 18afbb5a23ee..096bf244527d 100644 --- a/drivers/leds/Makefile +++ b/drivers/leds/Makefile @@ -60,6 +60,7 @@ obj-$(CONFIG_LEDS_LP8860) += leds-lp8860.o obj-$(CONFIG_LEDS_LT3593) += leds-lt3593.o obj-$(CONFIG_LEDS_MAX5970) += leds-max5970.o obj-$(CONFIG_LEDS_MAX77650) += leds-max77650.o +obj-$(CONFIG_LEDS_MAX77705) += leds-max77705.o obj-$(CONFIG_LEDS_MAX8997) += leds-max8997.o obj-$(CONFIG_LEDS_MC13783) += leds-mc13783.o obj-$(CONFIG_LEDS_MENF21BMC) += leds-menf21bmc.o diff --git a/drivers/leds/leds-max77705.c b/drivers/leds/leds-max77705.c new file mode 100644 index 000000000000..15fa4b3cbcd6 --- /dev/null +++ b/drivers/leds/leds-max77705.c @@ -0,0 +1,267 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Based on leds-max77650 driver + * + * LED driver for MAXIM 77705 PMIC. + * Copyright (C) 2024 Dzmitry Sankouski + */ + +#include +#include +#include +#include +#include +#include +#include + +#define MAX77705_LED_NUM_LEDS 4 +#define MAX77705_LED_EN_MASK GENMASK(1, 0) +#define MAX77705_LED_MAX_BRIGHTNESS 0xff +#define MAX77705_LED_EN_SHIFT(reg) (reg * MAX77705_RGBLED_EN_WIDTH) +#define MAX77705_LED_REG_BRIGHTNESS(reg) (reg + MAX77705_RGBLED_REG_LED0BRT) + +struct max77705_led { + struct led_classdev cdev; + struct led_classdev_mc mcdev; + struct regmap *regmap; + + struct mc_subled *subled_info; +}; + +static int max77705_rgb_blink(struct led_classdev *cdev, + unsigned long *delay_on, + unsigned long *delay_off) +{ + struct max77705_led *led = container_of(cdev, struct max77705_led, cdev); + int value, on_value, off_value; + + if (*delay_on < MAX77705_RGB_DELAY_100_STEP) + on_value = 0; + else if (*delay_on < MAX77705_RGB_DELAY_100_STEP_LIM) + on_value = *delay_on / MAX77705_RGB_DELAY_100_STEP - 1; + else if (*delay_on < MAX77705_RGB_DELAY_250_STEP_LIM) + on_value = (*delay_on - MAX77705_RGB_DELAY_100_STEP_LIM) / + MAX77705_RGB_DELAY_250_STEP + + MAX77705_RGB_DELAY_100_STEP_COUNT; + else + on_value = 15; + + on_value <<= 4; + + if (*delay_off < 1) + off_value = 0; + else if (*delay_off < MAX77705_RGB_DELAY_500_STEP) + off_value = 1; + else if (*delay_off < MAX77705_RGB_DELAY_500_STEP_LIM) + off_value = *delay_off / MAX77705_RGB_DELAY_500_STEP; + else if (*delay_off < MAX77705_RGB_DELAY_1000_STEP_LIM) + off_value = (*delay_off - MAX77705_RGB_DELAY_1000_STEP_LIM) / + MAX77705_RGB_DELAY_1000_STEP + + MAX77705_RGB_DELAY_500_STEP_COUNT; + else if (*delay_off < MAX77705_RGB_DELAY_2000_STEP_LIM) + off_value = (*delay_off - MAX77705_RGB_DELAY_2000_STEP_LIM) / + MAX77705_RGB_DELAY_2000_STEP + + MAX77705_RGB_DELAY_1000_STEP_COUNT; + else + off_value = 15; + + value = on_value | off_value; + return regmap_write(led->regmap, MAX77705_RGBLED_REG_LEDBLNK, value); +} + +static int max77705_led_brightness_set(struct regmap *regmap, struct mc_subled *subled, + int num_colors) +{ + int ret; + + for (int i = 0; i < num_colors; i++) { + unsigned int channel, brightness; + + channel = subled[i].channel; + brightness = subled[i].brightness; + + if (brightness == LED_OFF) { + /* Flash OFF */ + ret = regmap_update_bits(regmap, + MAX77705_RGBLED_REG_LEDEN, + MAX77705_LED_EN_MASK << MAX77705_LED_EN_SHIFT(channel), 0); + } else { + /* Set current */ + ret = regmap_write(regmap, MAX77705_LED_REG_BRIGHTNESS(channel), + brightness); + if (ret < 0) + return ret; + + ret = regmap_update_bits(regmap, + MAX77705_RGBLED_REG_LEDEN, + LED_ON << MAX77705_LED_EN_SHIFT(channel), + MAX77705_LED_EN_MASK << MAX77705_LED_EN_SHIFT(channel)); + } + } + + return ret; +} + +static int max77705_led_brightness_set_single(struct led_classdev *cdev, + enum led_brightness brightness) +{ + struct max77705_led *led = container_of(cdev, struct max77705_led, cdev); + + led->subled_info->brightness = brightness; + + return max77705_led_brightness_set(led->regmap, led->subled_info, 1); +} + +static int max77705_led_brightness_set_multi(struct led_classdev *cdev, + enum led_brightness brightness) +{ + struct led_classdev_mc *mcdev = lcdev_to_mccdev(cdev); + struct max77705_led *led = container_of(mcdev, struct max77705_led, mcdev); + + led_mc_calc_color_components(mcdev, brightness); + + return max77705_led_brightness_set(led->regmap, led->mcdev.subled_info, mcdev->num_colors); +} + +static int max77705_parse_subled(struct device *dev, struct fwnode_handle *np, + struct mc_subled *info) +{ + u32 color = LED_COLOR_ID_GREEN; + u32 reg; + int ret; + + ret = fwnode_property_read_u32(np, "reg", ®); + if (ret || !reg || reg >= MAX77705_LED_NUM_LEDS) + return dev_err_probe(dev, -EINVAL, "invalid \"reg\" of %pOFn\n", np); + + info->channel = reg; + + ret = fwnode_property_read_u32(np, "color", &color); + if (ret < 0 && ret != -EINVAL) + return dev_err_probe(dev, ret, + "failed to parse \"color\" of %pOF\n", np); + + info->color_index = color; + + return 0; +} + +static int max77705_add_led(struct device *dev, struct regmap *regmap, struct fwnode_handle *np) +{ + int ret, i = 0; + unsigned int color, reg; + struct max77705_led *led; + struct led_classdev *cdev; + struct mc_subled *info; + struct fwnode_handle *child; + struct led_init_data init_data = {}; + + led = devm_kzalloc(dev, sizeof(*led), GFP_KERNEL); + if (!led) + return -ENOMEM; + + ret = fwnode_property_read_u32(np, "color", &color); + if (ret < 0 && ret != -EINVAL) + return dev_err_probe(dev, ret, + "failed to parse \"color\" of %pOF\n", np); + + led->regmap = regmap; + init_data.fwnode = np; + + if (color == LED_COLOR_ID_RGB) { + int num_channels = of_get_available_child_count(to_of_node(np)); + + ret = fwnode_property_read_u32(np, "reg", ®); + if (ret || reg >= MAX77705_LED_NUM_LEDS) + ret = -EINVAL; + + info = devm_kcalloc(dev, num_channels, sizeof(*info), GFP_KERNEL); + if (!info) + return -ENOMEM; + + cdev = &led->mcdev.led_cdev; + cdev->max_brightness = MAX77705_LED_MAX_BRIGHTNESS; + cdev->brightness_set_blocking = max77705_led_brightness_set_multi; + cdev->blink_set = max77705_rgb_blink; + + fwnode_for_each_available_child_node(np, child) { + ret = max77705_parse_subled(dev, child, &info[i]); + if (ret < 0) + return ret; + + info[i].intensity = 0; + i++; + } + + led->mcdev.subled_info = info; + led->mcdev.num_colors = num_channels; + led->cdev = *cdev; + + ret = devm_led_classdev_multicolor_register_ext(dev, &led->mcdev, &init_data); + if (ret) + return ret; + + ret = max77705_led_brightness_set_multi(&led->cdev, LED_OFF); + if (ret) + return ret; + } else { + info = devm_kzalloc(dev, sizeof(*info), GFP_KERNEL); + if (!info) + return -ENOMEM; + + max77705_parse_subled(dev, np, info); + + led->subled_info = info; + led->cdev.brightness_set_blocking = max77705_led_brightness_set_single; + led->cdev.blink_set = max77705_rgb_blink; + led->cdev.max_brightness = MAX77705_LED_MAX_BRIGHTNESS; + + ret = devm_led_classdev_register_ext(dev, &led->cdev, &init_data); + if (ret) + return ret; + + ret = max77705_led_brightness_set_single(&led->cdev, LED_OFF); + if (ret) + return ret; + } + + return 0; +} + +static int max77705_led_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct regmap *regmap; + int ret; + + regmap = dev_get_regmap(dev->parent, NULL); + if (!regmap) + return -ENODEV; + + device_for_each_child_node_scoped(dev, child) { + ret = max77705_add_led(dev, regmap, child); + if (ret) + return ret; + } + + return 0; +} + +static const struct of_device_id max77705_led_of_match[] = { + { .compatible = "maxim,max77705-rgb" }, + { } +}; +MODULE_DEVICE_TABLE(of, max77705_led_of_match); + +static struct platform_driver max77705_led_driver = { + .driver = { + .name = "max77705-led", + .of_match_table = max77705_led_of_match, + }, + .probe = max77705_led_probe, +}; +module_platform_driver(max77705_led_driver); + +MODULE_DESCRIPTION("Maxim MAX77705 LED driver"); +MODULE_AUTHOR("Dzmitry Sankouski "); +MODULE_LICENSE("GPL"); diff --git a/include/linux/mfd/max77705-private.h b/include/linux/mfd/max77705-private.h index cf4184063390..49509c0352b1 100644 --- a/include/linux/mfd/max77705-private.h +++ b/include/linux/mfd/max77705-private.h @@ -33,6 +33,23 @@ #define MAX77705_SYSTEM_IRQ_SYSOVLO_INT BIT(5) #define MAX77705_SYSTEM_IRQ_TSHDN_INT BIT(6) #define MAX77705_SYSTEM_IRQ_TM_INT BIT(7) +/* MAX77705_RGBLED_REG_LEDEN register */ +#define MAX77705_RGBLED_EN_WIDTH 2 +/* MAX77705_RGBLED_REG_LEDBLNK register */ +#define MAX77705_RGB_DELAY_100_STEP_LIM 500 +#define MAX77705_RGB_DELAY_100_STEP_COUNT 4 +#define MAX77705_RGB_DELAY_100_STEP 100 +#define MAX77705_RGB_DELAY_250_STEP_LIM 3250 +#define MAX77705_RGB_DELAY_250_STEP 250 +#define MAX77705_RGB_DELAY_500_STEP 500 +#define MAX77705_RGB_DELAY_500_STEP_COUNT 10 +#define MAX77705_RGB_DELAY_500_STEP_LIM 5000 +#define MAX77705_RGB_DELAY_1000_STEP_LIM 8000 +#define MAX77705_RGB_DELAY_1000_STEP_COUNT 13 +#define MAX77705_RGB_DELAY_1000_STEP 1000 +#define MAX77705_RGB_DELAY_2000_STEP 2000 +#define MAX77705_RGB_DELAY_2000_STEP_COUNT 13 +#define MAX77705_RGB_DELAY_2000_STEP_LIM 12000 enum max77705_hw_rev { MAX77705_PASS1 = 1,