| /kernel/linux/linux-5.10/Documentation/devicetree/bindings/mfd/ |
| D | google,cros-ec.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/mfd/google,cros-ec.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Benson Leung <bleung@chromium.org>
11 - Enric Balletbo i Serra <enric.balletbo@collabora.com>
12 - Guenter Roeck <groeck@chromium.org>
15 Google's ChromeOS EC is a microcontroller which talks to the AP and
17 The EC can be connected through various interfaces (I2C, SPI, and others)
23 - description:
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| /kernel/linux/linux-5.10/drivers/mfd/ |
| D | cros_ec_dev.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * cros_ec_dev - expose the Chrome OS Embedded Controller to user-space
19 #define DRV_NAME "cros-ec-dev"
27 * struct cros_feature_to_name - CrOS feature id to name/short description.
39 * struct cros_feature_to_cells - CrOS feature id to mfd cells association.
74 { .name = "cros-ec-cec", },
78 { .name = "cros-ec-rtc", },
82 { .name = "cros-ec-sensorhub", },
86 { .name = "cros-usbpd-charger", },
87 { .name = "cros-usbpd-logger", },
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| /kernel/linux/linux-4.19/Documentation/devicetree/bindings/i2c/ |
| D | i2c-cros-ec-tunnel.txt | 1 I2C bus that tunnels through the ChromeOS EC (cros-ec)
3 On some ChromeOS board designs we've got a connection to the EC (embedded
5 the EC (like a battery and PMIC). To get access to those devices we need
6 to tunnel our i2c commands through the EC.
8 The node for this device should be under a cros-ec node like google,cros-ec-spi
9 or google,cros-ec-i2c.
13 - compatible: google,cros-ec-i2c-tunnel
14 - google,remote-bus: The EC bus we'd like to talk to.
17 - One node per I2C device connected to the tunnelled I2C bus.
21 cros-ec@0 {
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| /kernel/linux/linux-5.10/Documentation/devicetree/bindings/i2c/ |
| D | google,cros-ec-i2c-tunnel.yaml | 1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
5 $id: http://devicetree.org/schemas/i2c/google,cros-ec-i2c-tunnel.yaml#
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
8 title: I2C bus that tunnels through the ChromeOS EC (cros-ec)
11 - Doug Anderson <dianders@chromium.org>
12 - Benson Leung <bleung@chromium.org>
13 - Enric Balletbo i Serra <enric.balletbo@collabora.com>
16 On some ChromeOS board designs we've got a connection to the EC
18 other side of the EC (like a battery and PMIC). To get access to
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| /kernel/linux/linux-4.19/Documentation/devicetree/bindings/mfd/ |
| D | cros-ec.txt | 3 Google's ChromeOS EC is a Cortex-M device which talks to the AP and
6 The EC can be connect through various means (I2C, SPI, LPC) and the
8 its own driver which connects to the top level interface-agnostic EC driver.
9 Other Linux driver (such as cros-ec-keyb for the matrix keyboard) connect to
10 the top-level driver.
13 - compatible: "google,cros-ec-i2c"
14 - reg: I2C slave address
17 - compatible: "google,cros-ec-spi"
18 - reg: SPI chip select
21 - google,cros-ec-spi-pre-delay: Some implementations of the EC need a little
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| /kernel/linux/linux-5.10/Documentation/devicetree/bindings/extcon/ |
| D | extcon-usbc-cros-ec.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/extcon/extcon-usbc-cros-ec.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: ChromeOS EC USB Type-C cable and accessories detection
10 - Benson Leung <bleung@chromium.org>
11 - Enric Balletbo i Serra <enric.balletbo@collabora.com>
17 The node for this device must be under a cros-ec node like google,cros-ec-spi
18 or google,cros-ec-i2c.
22 const: google,extcon-usbc-cros-ec
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| /kernel/linux/linux-4.19/Documentation/devicetree/bindings/extcon/ |
| D | extcon-usbc-cros-ec.txt | 1 ChromeOS EC USB Type-C cable and accessories detection
7 The node for this device must be under a cros-ec node like google,cros-ec-spi
8 or google,cros-ec-i2c.
11 - compatible: Should be "google,extcon-usbc-cros-ec".
12 - google,usb-port-id: Specifies the USB port ID to use.
15 cros-ec@0 {
16 compatible = "google,cros-ec-i2c";
21 compatible = "google,extcon-usbc-cros-ec";
22 google,usb-port-id = <0>;
|
| /kernel/linux/linux-5.10/Documentation/devicetree/bindings/sound/ |
| D | google,cros-ec-codec.yaml | 1 # SPDX-License-Identifier: GPL-2.0-only
3 ---
4 $id: http://devicetree.org/schemas/sound/google,cros-ec-codec.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Audio codec controlled by ChromeOS EC
10 - Cheng-Yi Chiang <cychiang@chromium.org>
13 Google's ChromeOS EC codec is a digital mic codec provided by the
14 Embedded Controller (EC) and is controlled via a host-command
15 interface. An EC codec node should only be found inside the "codecs"
16 subnode of a cros-ec node.
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| /kernel/linux/linux-5.10/drivers/platform/chrome/ |
| D | cros_ec_sensorhub.c | 1 // SPDX-License-Identifier: GPL-2.0
19 #define DRV_NAME "cros-ec-sensorhub"
53 struct cros_ec_command *msg = sensorhub->msg; in cros_ec_sensorhub_register()
54 struct cros_ec_dev *ec = sensorhub->ec; in cros_ec_sensorhub_register() local
59 msg->version = 1; in cros_ec_sensorhub_register()
60 msg->insize = sizeof(struct ec_response_motion_sense); in cros_ec_sensorhub_register()
61 msg->outsize = sizeof(struct ec_params_motion_sense); in cros_ec_sensorhub_register()
63 for (i = 0; i < sensorhub->sensor_num; i++) { in cros_ec_sensorhub_register()
64 sensorhub->params->cmd = MOTIONSENSE_CMD_INFO; in cros_ec_sensorhub_register()
65 sensorhub->params->info.sensor_num = i; in cros_ec_sensorhub_register()
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| D | Makefile | 1 # SPDX-License-Identifier: GPL-2.0
3 # tell define_trace.h where to find the cros ec trace header
4 CFLAGS_cros_ec_trace.o:= -I$(src)
6 obj-$(CONFIG_CHROMEOS_LAPTOP) += chromeos_laptop.o
7 obj-$(CONFIG_CHROMEOS_PSTORE) += chromeos_pstore.o
8 obj-$(CONFIG_CHROMEOS_TBMC) += chromeos_tbmc.o
9 obj-$(CONFIG_CROS_EC) += cros_ec.o
10 obj-$(CONFIG_CROS_EC_I2C) += cros_ec_i2c.o
11 obj-$(CONFIG_CROS_EC_ISHTP) += cros_ec_ishtp.o
12 obj-$(CONFIG_CROS_EC_RPMSG) += cros_ec_rpmsg.o
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| /kernel/linux/linux-5.10/Documentation/devicetree/bindings/pwm/ |
| D | google,cros-ec-pwm.yaml | 1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/pwm/google,cros-ec-pwm.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: PWM controlled by ChromeOS EC
10 - Thierry Reding <thierry.reding@gmail.com>
11 - '"Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>'
14 Google's ChromeOS EC PWM is a simple PWM attached to the Embedded Controller
15 (EC) and controlled via a host-command interface.
16 An EC PWM node should be only found as a sub-node of the EC node (see
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| /kernel/linux/linux-4.19/Documentation/devicetree/bindings/pwm/ |
| D | google,cros-ec-pwm.txt | 1 * PWM controlled by ChromeOS EC
3 Google's ChromeOS EC PWM is a simple PWM attached to the Embedded Controller
4 (EC) and controlled via a host-command interface.
6 An EC PWM node should be only found as a sub-node of the EC node (see
7 Documentation/devicetree/bindings/mfd/cros-ec.txt).
10 - compatible: Must contain "google,cros-ec-pwm"
11 - #pwm-cells: Should be 1. The cell specifies the PWM index.
14 cros-ec@0 {
15 compatible = "google,cros-ec-spi";
19 cros_ec_pwm: ec-pwm {
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| /kernel/linux/linux-5.10/Documentation/devicetree/bindings/chrome/ |
| D | google,cros-ec-typec.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/chrome/google,cros-ec-typec.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Google Chrome OS EC(Embedded Controller) Type C port driver.
10 - Benson Leung <bleung@chromium.org>
11 - Prashant Malani <pmalani@chromium.org>
14 Chrome OS devices have an Embedded Controller(EC) which has access to
17 cros-ec node like google,cros-ec-spi.
21 const: google,cros-ec-typec
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| /kernel/linux/linux-5.10/Documentation/ABI/testing/ |
| D | debugfs-cros-ec | 1 What: /sys/kernel/debug/<cros-ec-device>/console_log
5 If the EC supports the CONSOLE_READ command type, this file
6 can be used to grab the EC logs. The kernel polls for the log
10 What: /sys/kernel/debug/<cros-ec-device>/panicinfo
14 This file dumps the EC panic information from the previous
16 type is supported by the EC.
18 What: /sys/kernel/debug/<cros-ec-device>/pdinfo
23 information for all the USB PD/type-C ports available. If
27 What: /sys/kernel/debug/<cros-ec-device>/uptime
31 A u32 providing the time since EC booted in ms. This is
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| /kernel/linux/linux-4.19/drivers/mfd/ |
| D | cros_ec_dev.c | 2 * cros_ec_dev - expose the Chrome OS Embedded Controller to user-space
31 #define DRV_NAME "cros-ec-dev"
51 static int ec_get_version(struct cros_ec_dev *ec, char *str, int maxlen) in ec_get_version() argument
55 "unknown", "read-only", "read-write", "invalid", in ec_get_version()
62 return -ENOMEM; in ec_get_version()
64 msg->version = 0; in ec_get_version()
65 msg->command = EC_CMD_GET_VERSION + ec->cmd_offset; in ec_get_version()
66 msg->insize = sizeof(*resp); in ec_get_version()
67 msg->outsize = 0; in ec_get_version()
69 ret = cros_ec_cmd_xfer(ec->ec_dev, msg); in ec_get_version()
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| /kernel/linux/linux-5.10/Documentation/devicetree/bindings/regulator/ |
| D | google,cros-ec-regulator.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/regulator/google,cros-ec-regulator.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: ChromeOS EC controlled voltage regulators
10 - Pi-Hsun Shih <pihsun@chromium.org>
17 - $ref: "regulator.yaml#"
21 const: google,cros-ec-regulator
25 description: Identifier for the voltage regulator to ChromeOS EC.
28 - compatible
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| /kernel/linux/linux-5.10/Documentation/devicetree/bindings/input/ |
| D | google,cros-ec-keyb.yaml | 1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
5 $id: http://devicetree.org/schemas/input/google,cros-ec-keyb.yaml#
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
8 title: ChromeOS EC Keyboard
11 - Simon Glass <sjg@chromium.org>
12 - Benson Leung <bleung@chromium.org>
13 - Enric Balletbo i Serra <enric.balletbo@collabora.com>
16 Google's ChromeOS EC Keyboard is a simple matrix keyboard
17 implemented on a separate EC (Embedded Controller) device. It provides
[all …]
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| /kernel/linux/linux-5.10/arch/arm/boot/dts/ |
| D | rk3288-veyron-chromebook.dtsi | 1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
9 #include <dt-bindings/clock/rockchip,rk808.h>
10 #include <dt-bindings/input/input.h>
11 #include "rk3288-veyron.dtsi"
12 #include "rk3288-veyron-analog-audio.dtsi"
13 #include "rk3288-veyron-edp.dtsi"
14 #include "rk3288-veyron-sdmmc.dtsi"
22 gpio-charger {
23 compatible = "gpio-charger";
24 charger-type = "mains";
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| /kernel/linux/linux-4.19/Documentation/devicetree/bindings/input/ |
| D | cros-ec-keyb.txt | 1 ChromeOS EC Keyboard
3 Google's ChromeOS EC Keyboard is a simple matrix keyboard implemented on
4 a separate EC (Embedded Controller) device. It provides a message for reading
5 key scans from the EC. These are then converted into keycodes for processing
8 This binding is based on matrix-keymap.txt and extends/modifies it as follows:
11 - compatible: "google,cros-ec-keyb"
14 - google,needs-ghost-filter: True to enable a ghost filter for the matrix
15 keyboard. This is recommended if the EC does not have its own logic or
21 cros-ec-keyb {
22 compatible = "google,cros-ec-keyb";
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| /kernel/linux/linux-4.19/drivers/iio/common/cros_ec_sensors/ |
| D | cros_ec_sensors.c | 2 * cros_ec_sensors - Driver for Chrome OS Embedded Controller sensors.
15 * This driver uses the cros-ec interface to communicate with the Chrome OS
16 * EC about sensors data. Data access is presented through iio sysfs.
54 int idx = chan->scan_index; in cros_ec_sensors_read()
56 mutex_lock(&st->core.cmd_lock); in cros_ec_sensors_read()
60 ret = st->core.read_ec_sensors_data(indio_dev, 1 << idx, &data); in cros_ec_sensors_read()
67 st->core.param.cmd = MOTIONSENSE_CMD_SENSOR_OFFSET; in cros_ec_sensors_read()
68 st->core.param.sensor_offset.flags = 0; in cros_ec_sensors_read()
70 ret = cros_ec_motion_send_host_cmd(&st->core, 0); in cros_ec_sensors_read()
76 st->core.calib[i] = in cros_ec_sensors_read()
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| /kernel/linux/linux-5.10/drivers/iio/common/cros_ec_sensors/ |
| D | cros_ec_sensors.c | 1 // SPDX-License-Identifier: GPL-2.0
3 * cros_ec_sensors - Driver for Chrome OS Embedded Controller sensors.
7 * This driver uses the cros-ec interface to communicate with the Chrome OS
8 * EC about sensors data. Data access is presented through iio sysfs.
44 int idx = chan->scan_index; in cros_ec_sensors_read()
46 mutex_lock(&st->core.cmd_lock); in cros_ec_sensors_read()
50 ret = st->core.read_ec_sensors_data(indio_dev, 1 << idx, &data); in cros_ec_sensors_read()
57 st->core.param.cmd = MOTIONSENSE_CMD_SENSOR_OFFSET; in cros_ec_sensors_read()
58 st->core.param.sensor_offset.flags = 0; in cros_ec_sensors_read()
60 ret = cros_ec_motion_send_host_cmd(&st->core, 0); in cros_ec_sensors_read()
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| /kernel/linux/linux-4.19/drivers/pwm/ |
| D | pwm-cros-ec.c | 1 // SPDX-License-Identifier: GPL-2.0
3 * Expose a PWM controlled by the ChromeOS EC to the host processor.
16 * struct cros_ec_pwm_device - Driver data for EC PWM
19 * @ec: Pointer to EC device
24 struct cros_ec_device *ec; member
33 static int cros_ec_pwm_set_duty(struct cros_ec_device *ec, u8 index, u16 duty) in cros_ec_pwm_set_duty() argument
44 msg->version = 0; in cros_ec_pwm_set_duty()
45 msg->command = EC_CMD_PWM_SET_DUTY; in cros_ec_pwm_set_duty()
46 msg->insize = 0; in cros_ec_pwm_set_duty()
47 msg->outsize = sizeof(*params); in cros_ec_pwm_set_duty()
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| /kernel/linux/linux-5.10/drivers/i2c/busses/ |
| D | i2c-cros-ec-tunnel.c | 1 // SPDX-License-Identifier: GPL-2.0+
2 // Expose an I2C passthrough to the ChromeOS EC.
17 * struct ec_i2c_device - Driver data for I2C tunnel
21 * @ec: Pointer to EC device
22 * @remote_bus: The EC bus number we tunnel to on the other side.
30 struct cros_ec_device *ec; member
39 * ec_i2c_count_message - Count bytes needed for ec_i2c_construct_message
61 * ec_i2c_construct_message - construct a message to go to the EC
64 * a format that the EC understands.
84 params->port = bus_num; in ec_i2c_construct_message()
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| /kernel/linux/linux-4.19/drivers/i2c/busses/ |
| D | i2c-cros-ec-tunnel.c | 9 * Expose an I2C passthrough to the ChromeOS EC.
22 * struct ec_i2c_device - Driver data for I2C tunnel
26 * @ec: Pointer to EC device
27 * @remote_bus: The EC bus number we tunnel to on the other side.
35 struct cros_ec_device *ec; member
44 * ec_i2c_count_message - Count bytes needed for ec_i2c_construct_message
66 * ec_i2c_construct_message - construct a message to go to the EC
69 * a format that the EC understands.
89 params->port = bus_num; in ec_i2c_construct_message()
90 params->num_msgs = num; in ec_i2c_construct_message()
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| /kernel/linux/linux-4.19/arch/arm/boot/dts/ |
| D | rk3288-veyron-chromebook.dtsi | 1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
9 #include <dt-bindings/clock/rockchip,rk808.h>
10 #include <dt-bindings/input/input.h>
11 #include "rk3288-veyron.dtsi"
12 #include "rk3288-veyron-analog-audio.dtsi"
13 #include "rk3288-veyron-sdmmc.dtsi"
22 compatible = "pwm-backlight";
23 brightness-levels = <
56 default-brightness-level = <128>;
57 enable-gpios = <&gpio7 RK_PA2 GPIO_ACTIVE_HIGH>;
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