1 // SPDX-License-Identifier: GPL-2.0+
3 // silicom-platform.c - Silicom MEC170x platform driver
5 // Copyright (C) 2023 Henry Shi <henrys@silicom-usa.com>
15 #include <linux/led-class-multicolor.h>
52 #define CHANNEL_TO_OFFSET(chan) (((chan) >> 3) - 0x14)
201 	enum led_brightness brightness = LED_OFF;  in silicom_mec_led_mc_brightness_get()  local
204 	for (i = 0; i < mc_cdev->num_colors; i++) {  in silicom_mec_led_mc_brightness_get()
205 		mc_cdev->subled_info[i].brightness =  in silicom_mec_led_mc_brightness_get()
206 			silicom_mec_led_get(mc_cdev->subled_info[i].channel);  in silicom_mec_led_mc_brightness_get()
207 		/* Mark the overall brightness as LED_ON if any of the subleds are on */  in silicom_mec_led_mc_brightness_get()
208 		if (mc_cdev->subled_info[i].brightness != LED_OFF)  in silicom_mec_led_mc_brightness_get()
209 			brightness = LED_ON;  in silicom_mec_led_mc_brightness_get()
212 	return brightness;  in silicom_mec_led_mc_brightness_get()
216 					      enum led_brightness brightness)  in silicom_mec_led_mc_brightness_set()  argument
221 	led_mc_calc_color_components(mc_cdev, brightness);  in silicom_mec_led_mc_brightness_set()
222 	for (i = 0; i < mc_cdev->num_colors; i++) {  in silicom_mec_led_mc_brightness_set()
223 		silicom_mec_port_set(mc_cdev->subled_info[i].channel,  in silicom_mec_led_mc_brightness_set()
224 				     mc_cdev->subled_info[i].brightness);  in silicom_mec_led_mc_brightness_set()
245 	return direction == GPIO_LINE_DIRECTION_IN ? 0 : -EINVAL;  in silicom_gpio_direction_input()
269 		return -EINVAL;  in silicom_gpio_direction_output()
287 		.brightness = 1,
293 		.brightness = 1,
299 		.brightness = 1,
308 		.brightness = 1,
314 		.brightness = 1,
320 		.brightness = 1,
329 		.brightness = 1,
335 		.brightness = 1,
341 		.brightness = 1,
347 		.brightness = 1,
356 		.brightness = 1,
362 		.brightness = 1,
368 		.brightness = 1,
374 		.brightness = 1,
383 		.brightness = 1,
389 		.brightness = 1,
395 		.brightness = 1,
401 		.brightness = 1,
411 			.brightness = 0,
422 			.brightness = 0,
433 			.brightness = 0,
444 			.brightness = 0,
455 			.brightness = 0,
467 	.label = "silicom-gpio",
473 	.base = -1,
501 		.brightness = 1,
507 		.brightness = 1,
513 		.brightness = 1,
519 		.brightness = 1,
528 		.brightness = 1,
534 		.brightness = 1,
540 		.brightness = 1,
546 		.brightness = 1,
555 		.brightness = 1,
561 		.brightness = 1,
567 		.brightness = 1,
573 		.brightness = 1,
583 			.brightness = 0,
594 			.brightness = 0,
605 			.brightness = 0,
664 		return -EINVAL;  in uc_version_show()
701 		return -EINVAL;  in power_cycle_store()
724 		.name = "silicom-platform",
740 			return -ENOMEM;  in silicom_mc_leds_register()
743 		led->subled_info = devm_kzalloc(dev, led->num_colors * size, GFP_KERNEL);  in silicom_mc_leds_register()
744 		if (!led->subled_info)  in silicom_mc_leds_register()
745 			return -ENOMEM;  in silicom_mc_leds_register()
746 		memcpy(led->subled_info, mc_leds[i].subled_info, led->num_colors * size);  in silicom_mc_leds_register()
790 	default:  in silicom_fan_control_fan_is_visible()
801 	default:  in silicom_fan_control_temp_is_visible()
812 	default:  in silicom_fan_control_read_fan()
813 		return -EOPNOTSUPP;  in silicom_fan_control_read_fan()
823 	default:  in silicom_fan_control_read_temp()
824 		return -EOPNOTSUPP;  in silicom_fan_control_read_temp()
837 	default:  in silicom_fan_control_is_visible()
852 	default:  in silicom_fan_control_read()
853 		return -EOPNOTSUPP;  in silicom_fan_control_read()
869 	default:  in silicom_fan_control_read_labels()
870 		return -EOPNOTSUPP;  in silicom_fan_control_read_labels()
891 	if (!devm_request_region(&device->dev, MEC_IO_BASE, MEC_IO_LEN, "mec")) {  in silicom_platform_probe()
892 		dev_err(&device->dev, "couldn't reserve MEC io ports\n");  in silicom_platform_probe()
893 		return -EBUSY;  in silicom_platform_probe()
900 	dev_dbg(&device->dev, "EC magic 0x%02x, version 0x%02x\n", magic, ver);  in silicom_platform_probe()
903 		dev_err(&device->dev, "Bad EC magic 0x%02x!\n", magic);  in silicom_platform_probe()
904 		return -ENODEV;  in silicom_platform_probe()
907 	err = silicom_mc_leds_register(&device->dev, silicom_led_info);  in silicom_platform_probe()
909 		dev_err(&device->dev, "Failed to register LEDs\n");  in silicom_platform_probe()
913 	err = devm_gpiochip_add_data(&device->dev, silicom_gpiochip,  in silicom_platform_probe()
916 		dev_err(&device->dev, "Failed to register gpiochip: %d\n", err);  in silicom_platform_probe()
920 	hwmon_dev = devm_hwmon_device_register_with_info(&device->dev, "silicom_fan", NULL,  in silicom_platform_probe()
924 		dev_err(&device->dev, "Failed to register hwmon_dev: %d\n", err);  in silicom_platform_probe()
933 	struct silicom_platform_info *info = id->driver_data;  in silicom_platform_info_init()
935 	silicom_led_info = info->led_info;  in silicom_platform_info_init()
936 	silicom_gpio_channels = info->gpio_channels;  in silicom_platform_info_init()
937 	silicom_gpiochip = info->gpiochip;  in silicom_platform_info_init()
938 	silicom_gpiochip->ngpio = info->ngpio;  in silicom_platform_info_init()
949 			DMI_MATCH(DMI_BOARD_NAME, "80300-0214-G"),
958 			DMI_MATCH(DMI_BOARD_NAME, "80500-0214-G"),
967 			DMI_MATCH(DMI_BOARD_NAME, "80300-0222-G"),
979 		return -ENODEV;  in silicom_platform_init()
998 MODULE_AUTHOR("Henry Shi <henrys@silicom-usa.com>");