From 5e5f2f92cccc29f356422d3cbc104f7f42430f22 Mon Sep 17 00:00:00 2001 From: Dmitry Baryshkov Date: Fri, 14 Jun 2024 02:43:39 +0300 Subject: platform: arm64: add Lenovo Yoga C630 WOS EC driver MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Lenovo Yoga C630 WOS is a laptop using Snapdragon 850 SoC. Like many laptops it uses an embedded controller (EC) to perform various platform operations, including, but not limited, to Type-C port control or power supply handlng. Add the driver for the EC, that creates devices for UCSI and power supply devices. Reviewed-by: Bryan O'Donoghue Signed-off-by: Dmitry Baryshkov Link: https://lore.kernel.org/r/20240614-yoga-ec-driver-v7-2-9f0b9b40ae76@linaro.org [ij: added #include ] Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- include/linux/platform_data/lenovo-yoga-c630.h | 44 ++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 include/linux/platform_data/lenovo-yoga-c630.h (limited to 'include/linux/platform_data') diff --git a/include/linux/platform_data/lenovo-yoga-c630.h b/include/linux/platform_data/lenovo-yoga-c630.h new file mode 100644 index 000000000000..5d1f9fb33cfc --- /dev/null +++ b/include/linux/platform_data/lenovo-yoga-c630.h @@ -0,0 +1,44 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (c) 2022-2024, Linaro Ltd + * Authors: + * Bjorn Andersson + * Dmitry Baryshkov + */ + +#ifndef _LENOVO_YOGA_C630_DATA_H +#define _LENOVO_YOGA_C630_DATA_H + +struct yoga_c630_ec; +struct notifier_block; + +#define YOGA_C630_MOD_NAME "lenovo_yoga_c630" + +#define YOGA_C630_DEV_UCSI "ucsi" +#define YOGA_C630_DEV_PSY "psy" + +int yoga_c630_ec_read8(struct yoga_c630_ec *ec, u8 addr); +int yoga_c630_ec_read16(struct yoga_c630_ec *ec, u8 addr); + +int yoga_c630_ec_register_notify(struct yoga_c630_ec *ec, struct notifier_block *nb); +void yoga_c630_ec_unregister_notify(struct yoga_c630_ec *ec, struct notifier_block *nb); + +#define YOGA_C630_UCSI_WRITE_SIZE 8 +#define YOGA_C630_UCSI_CCI_SIZE 4 +#define YOGA_C630_UCSI_DATA_SIZE 16 +#define YOGA_C630_UCSI_READ_SIZE (YOGA_C630_UCSI_CCI_SIZE + YOGA_C630_UCSI_DATA_SIZE) + +u16 yoga_c630_ec_ucsi_get_version(struct yoga_c630_ec *ec); +int yoga_c630_ec_ucsi_write(struct yoga_c630_ec *ec, + const u8 req[YOGA_C630_UCSI_WRITE_SIZE]); +int yoga_c630_ec_ucsi_read(struct yoga_c630_ec *ec, + u8 resp[YOGA_C630_UCSI_READ_SIZE]); + +#define LENOVO_EC_EVENT_USB 0x20 +#define LENOVO_EC_EVENT_UCSI 0x21 +#define LENOVO_EC_EVENT_HPD 0x22 +#define LENOVO_EC_EVENT_BAT_STATUS 0x24 +#define LENOVO_EC_EVENT_BAT_INFO 0x25 +#define LENOVO_EC_EVENT_BAT_ADPT_STATUS 0x37 + +#endif -- cgit v1.2.3 From 4bf1ea3fc914faef37d8c793b7144d4765ff4a00 Mon Sep 17 00:00:00 2001 From: Devin Bayer Date: Fri, 28 Jun 2024 10:46:03 +0200 Subject: platform/x86: asus-wmi: support the disable camera LED on F10 of Zenbook 2023 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Adds a sysfs entry for the LED on F10 above the crossed out camera icon on 2023 Zenbooks. Signed-off-by: Devin Bayer Link: https://lore.kernel.org/r/20240628084603.217106-1-dev@doubly.so Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- drivers/platform/x86/asus-wmi.c | 35 ++++++++++++++++++++++++++++++ include/linux/platform_data/x86/asus-wmi.h | 4 ++++ 2 files changed, 39 insertions(+) (limited to 'include/linux/platform_data') diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c index 3f9b6285c9a6..26c45fd093a0 100644 --- a/drivers/platform/x86/asus-wmi.c +++ b/drivers/platform/x86/asus-wmi.c @@ -238,6 +238,7 @@ struct asus_wmi { struct led_classdev lightbar_led; int lightbar_led_wk; struct led_classdev micmute_led; + struct led_classdev camera_led; struct workqueue_struct *led_workqueue; struct work_struct tpd_led_work; struct work_struct wlan_led_work; @@ -1642,6 +1643,27 @@ static int micmute_led_set(struct led_classdev *led_cdev, return err < 0 ? err : 0; } +static enum led_brightness camera_led_get(struct led_classdev *led_cdev) +{ + struct asus_wmi *asus; + u32 result; + + asus = container_of(led_cdev, struct asus_wmi, camera_led); + asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_CAMERA_LED, &result); + + return result & ASUS_WMI_DSTS_BRIGHTNESS_MASK; +} + +static int camera_led_set(struct led_classdev *led_cdev, + enum led_brightness brightness) +{ + int state = brightness != LED_OFF; + int err; + + err = asus_wmi_set_devstate(ASUS_WMI_DEVID_CAMERA_LED, state, NULL); + return err < 0 ? err : 0; +} + static void asus_wmi_led_exit(struct asus_wmi *asus) { led_classdev_unregister(&asus->kbd_led); @@ -1649,6 +1671,7 @@ static void asus_wmi_led_exit(struct asus_wmi *asus) led_classdev_unregister(&asus->wlan_led); led_classdev_unregister(&asus->lightbar_led); led_classdev_unregister(&asus->micmute_led); + led_classdev_unregister(&asus->camera_led); if (asus->led_workqueue) destroy_workqueue(asus->led_workqueue); @@ -1740,6 +1763,18 @@ static int asus_wmi_led_init(struct asus_wmi *asus) goto error; } + if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_CAMERA_LED)) { + asus->camera_led.name = "asus::camera"; + asus->camera_led.max_brightness = 1; + asus->camera_led.brightness_get = camera_led_get; + asus->camera_led.brightness_set_blocking = camera_led_set; + + rv = led_classdev_register(&asus->platform_device->dev, + &asus->camera_led); + if (rv) + goto error; + } + error: if (rv) asus_wmi_led_exit(asus); diff --git a/include/linux/platform_data/x86/asus-wmi.h b/include/linux/platform_data/x86/asus-wmi.h index 3eb5cd6773ad..0aeeae1c1943 100644 --- a/include/linux/platform_data/x86/asus-wmi.h +++ b/include/linux/platform_data/x86/asus-wmi.h @@ -51,6 +51,10 @@ #define ASUS_WMI_DEVID_LED6 0x00020016 #define ASUS_WMI_DEVID_MICMUTE_LED 0x00040017 +/* Disable Camera LED */ +#define ASUS_WMI_DEVID_CAMERA_LED_NEG 0x00060078 /* 0 = on (unused) */ +#define ASUS_WMI_DEVID_CAMERA_LED 0x00060079 /* 1 = on */ + /* Backlight and Brightness */ #define ASUS_WMI_DEVID_ALS_ENABLE 0x00050001 /* Ambient Light Sensor */ #define ASUS_WMI_DEVID_BACKLIGHT 0x00050011 -- cgit v1.2.3