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/Linux-v5.10/Documentation/devicetree/bindings/mfd/
Dgoogle,cros-ec.yaml1 # 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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/Linux-v5.10/Documentation/devicetree/bindings/i2c/
Dgoogle,cros-ec-i2c-tunnel.yaml1 # 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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/Linux-v5.10/Documentation/devicetree/bindings/extcon/
Dextcon-usbc-cros-ec.yaml1 # 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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/Linux-v5.10/drivers/i2c/busses/
Di2c-cros-ec-tunnel.c1 // SPDX-License-Identifier: GPL-2.0+
2 // Expose an I2C passthrough to the ChromeOS EC.
8 #include <linux/i2c.h>
17 * struct ec_i2c_device - Driver data for I2C tunnel
20 * @adap: I2C adapter
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
41 * @i2c_msgs: The i2c messages to read
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/Linux-v5.10/arch/arm/boot/dts/
Drk3288-veyron-chromebook.dtsi1 // 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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Dtegra124-nyan.dtsi1 // SPDX-License-Identifier: GPL-2.0
2 #include <dt-bindings/input/input.h>
7 rtc0 = "/i2c@7000d000/pmic@40";
13 stdout-path = "serial0:115200n8";
19 * missing a unit-address. However, the bootloader on these Chromebook
21 * Adding the unit-address causes the bootloader to create a /memory
33 /delete-node/ memory@80000000;
39 vdd-supply = <&vdd_3v3_hdmi>;
40 pll-supply = <&vdd_hdmi_pll>;
41 hdmi-supply = <&vdd_5v0_hdmi>;
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Dexynos5420-peach-pit.dts1 // SPDX-License-Identifier: GPL-2.0
8 /dts-v1/;
9 #include <dt-bindings/input/input.h>
10 #include <dt-bindings/gpio/gpio.h>
11 #include <dt-bindings/interrupt-controller/irq.h>
12 #include <dt-bindings/clock/maxim,max77802.h>
13 #include <dt-bindings/regulator/maxim,max77802.h>
14 #include <dt-bindings/sound/samsung-i2s.h>
16 #include "exynos5420-cpus.dtsi"
21 compatible = "google,pit-rev16",
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Dexynos5800-peach-pi.dts1 // SPDX-License-Identifier: GPL-2.0
8 /dts-v1/;
9 #include <dt-bindings/input/input.h>
10 #include <dt-bindings/gpio/gpio.h>
11 #include <dt-bindings/interrupt-controller/irq.h>
12 #include <dt-bindings/clock/maxim,max77802.h>
13 #include <dt-bindings/regulator/maxim,max77802.h>
14 #include <dt-bindings/sound/samsung-i2s.h>
16 #include "exynos5420-cpus.dtsi"
21 compatible = "google,pi-rev16",
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Dcros-ec-sbs.dtsi2 * Smart battery dts fragment for devices that use cros-ec-sbs
6 * This file is dual-licensed: you can use it either under the terms
46 battery: sbs-battery@b {
47 compatible = "sbs,sbs-battery";
49 sbs,i2c-retry-count = <2>;
50 sbs,poll-retry-count = <1>;
Drk3288-veyron-pinky.dts1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
8 /dts-v1/;
9 #include "rk3288-veyron-chromebook.dtsi"
10 #include "cros-ec-sbs.dtsi"
14 compatible = "google,veyron-pinky-rev2", "google,veyron-pinky",
17 /delete-node/backlight-regulator;
18 /delete-node/panel-regulator;
19 /delete-node/emmc-pwrseq;
20 /delete-node/vcc18-lcd;
24 /delete-property/power-supply;
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Dexynos5250-spring.dts1 // SPDX-License-Identifier: GPL-2.0
9 /dts-v1/;
10 #include <dt-bindings/clock/samsung,s2mps11.h>
11 #include <dt-bindings/gpio/gpio.h>
12 #include <dt-bindings/interrupt-controller/irq.h>
13 #include <dt-bindings/input/input.h>
27 stdout-path = "serial3:115200n8";
30 gpio-keys {
31 compatible = "gpio-keys";
32 pinctrl-names = "default";
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Dtegra124-venice2.dts1 // SPDX-License-Identifier: GPL-2.0
2 /dts-v1/;
4 #include <dt-bindings/input/input.h>
12 rtc0 = "/i2c@7000d000/pmic@40";
18 stdout-path = "serial0:115200n8";
29 vdd-supply = <&vdd_3v3_hdmi>;
30 pll-supply = <&vdd_hdmi_pll>;
31 hdmi-supply = <&vdd_5v0_hdmi>;
33 nvidia,ddc-i2c-bus = <&hdmi_ddc>;
34 nvidia,hpd-gpio =
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Dexynos5250-snow-common.dtsi1 // SPDX-License-Identifier: GPL-2.0
8 #include <dt-bindings/gpio/gpio.h>
9 #include <dt-bindings/clock/maxim,max77686.h>
10 #include <dt-bindings/interrupt-controller/irq.h>
11 #include <dt-bindings/input/input.h>
12 #include <dt-bindings/sound/samsung-i2s.h>
27 stdout-path = "serial3:115200n8";
30 gpio-keys {
31 compatible = "gpio-keys";
32 pinctrl-names = "default";
[all …]
/Linux-v5.10/arch/arm64/boot/dts/rockchip/
Drk3399-gru.dtsi1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
5 * Copyright 2016-2017 Google, Inc
8 #include <dt-bindings/input/input.h>
10 #include "rk3399-op1-opp.dtsi"
14 stdout-path = "serial2:115200n8";
23 * - Rails that only connect to the EC (or devices that the EC talks to)
25 * - Rails _are_ included if the rails go to the AP even if the AP
34 * - The EC controls the enable and the EC always enables a rail as
36 * - The rails are actually connected to each other by a jumper and
41 ppvar_sys: ppvar-sys {
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Drk3399-gru-chromebook.dtsi1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
3 * Google Gru-Chromebook shared properties
8 #include "rk3399-gru.dtsi"
11 pp900_ap: pp900-ap {
12 compatible = "regulator-fixed";
13 regulator-name = "pp900_ap";
15 /* EC turns on w/ pp900_ap_en; always on for AP */
16 regulator-always-on;
17 regulator-boot-on;
18 regulator-min-microvolt = <900000>;
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/Linux-v5.10/drivers/platform/chrome/
Dcros_ec_i2c.c1 // SPDX-License-Identifier: GPL-2.0
2 // I2C interface for ChromeOS Embedded Controller
10 #include <linux/i2c.h>
22 * byte 1-8 struct ec_host_request
23 * byte 10- response data
36 * byte 2-9 struct ec_host_response
37 * byte 10- response data
55 struct i2c_client *client = ec_dev->priv; in cros_ec_pkt_xfer_i2c()
56 int ret = -ENOMEM; in cros_ec_pkt_xfer_i2c()
69 i2c_msg[0].addr = client->addr; in cros_ec_pkt_xfer_i2c()
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Dcros_ec_spi.c1 // SPDX-License-Identifier: GPL-2.0
23 * Number of EC preamble bytes we read at a time. Since it takes
24 * about 400-500us for the EC to respond there is not a lot of
25 * point in tuning this. If the EC could respond faster then
34 * Allow for a long time for the EC to respond. We support i2c
43 * not directly passing i2c through, but it's too late for that for
50 * for this, clocking in at 2-3ms.
57 * If we go too fast, the EC will miss the transaction. We know that we
58 * need at least 70 us with the 16 MHz STM32 EC, so go with 200 us to be
64 * struct cros_ec_spi - information about a SPI-connected EC
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/Linux-v5.10/include/linux/platform_data/
Dcros_ec_proto.h1 /* SPDX-License-Identifier: GPL-2.0 */
25 * The EC is unresponsive for a time after a reboot command. Add a
31 * Max bus-specific overhead incurred by request/responses.
32 * I2C requires 1 additional byte for requests.
33 * I2C requires 2 additional bytes for responses.
41 * Command interface between EC and AP, for LPC, I2C and SPI interfaces.
58 * struct cros_ec_command - Information about a ChromeOS EC command.
62 * @insize: Max number of bytes to accept from the EC.
63 * @result: EC's response to the command (separate from communication failure).
64 * @data: Where to put the incoming data from EC and outgoing data to EC.
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/Linux-v5.10/arch/arm64/boot/dts/mediatek/
Dmt8183-kukui.dtsi1 // SPDX-License-Identifier: (GPL-2.0 OR MIT)
8 #include <dt-bindings/gpio/gpio.h>
9 #include <dt-bindings/input/input.h>
19 stdout-path = "serial0:115200n8";
28 compatible = "fixed-clock";
29 #clock-cells = <0>;
30 clock-frequency = <32768>;
31 clock-output-names = "clk32k";
35 compatible = "regulator-fixed";
36 regulator-name = "it6505_pp18";
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Dmt8173-elm.dtsi1 // SPDX-License-Identifier: GPL-2.0-only
6 #include <dt-bindings/input/input.h>
7 #include <dt-bindings/input/linux-event-codes.h>
8 #include <dt-bindings/regulator/dlg,da9211-regulator.h>
9 #include <dt-bindings/gpio/gpio.h>
19 compatible = "pwm-backlight";
21 power-supply = <&bl_fixed_reg>;
22 enable-gpios = <&pio 95 GPIO_ACTIVE_HIGH>;
24 pinctrl-names = "default";
25 pinctrl-0 = <&disp_pwm0_pins>;
[all …]
/Linux-v5.10/arch/arm64/boot/dts/qcom/
Dsc7180-trogdor.dtsi1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
8 #include <dt-bindings/gpio/gpio.h>
9 #include <dt-bindings/input/input.h>
10 #include <dt-bindings/regulator/qcom,rpmh-regulator.h>
23 /delete-node/ &hyp_mem;
24 /delete-node/ &xbl_mem;
25 /delete-node/ &aop_mem;
26 /delete-node/ &sec_apps_mem;
27 /delete-node/ &tz_mem;
35 reserved-memory {
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Dsdm845-cheza.dtsi1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
8 #include <dt-bindings/gpio/gpio.h>
9 #include <dt-bindings/input/input.h>
10 #include <dt-bindings/regulator/qcom,rpmh-regulator.h>
26 stdout-path = "serial0:115200n8";
30 compatible = "pwm-backlight";
32 enable-gpios = <&tlmm 37 GPIO_ACTIVE_HIGH>;
33 power-supply = <&ppvar_sys>;
34 pinctrl-names = "default";
35 pinctrl-0 = <&ap_edp_bklten>;
[all …]
/Linux-v5.10/drivers/input/keyboard/
Dcros_ec_keyb.c1 // SPDX-License-Identifier: GPL-2.0
2 // ChromeOS EC keyboard driver
6 // This driver uses the ChromeOS EC byte-level message-based protocol for
7 // communicating the keyboard state (which keys are pressed) from a keyboard EC
8 // to the AP over some bus (such as i2c, lpc, spi). The EC does debouncing,
10 // motivation for this is to keep the EC firmware as simple as possible, since
11 // it cannot be easily upgraded and EC flash/IRAM space is relatively
16 #include <linux/i2c.h>
35 * @ghost_filter: true to enable the matrix key-ghosting filter
39 * @ec: Top level ChromeOS device to use to talk to EC
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/Linux-v5.10/arch/arm64/boot/dts/nvidia/
Dtegra132-norrin.dts1 // SPDX-License-Identifier: GPL-2.0
2 /dts-v1/;
4 #include <dt-bindings/input/input.h>
12 rtc0 = "/i2c@7000d000/as3722@40";
18 stdout-path = "serial0:115200n8";
30 vdd-supply = <&vdd_3v3_hdmi>;
31 pll-supply = <&vdd_hdmi_pll>;
32 hdmi-supply = <&vdd_5v0_hdmi>;
34 nvidia,ddc-i2c-bus = <&hdmi_ddc>;
35 nvidia,hpd-gpio =
[all …]
/Linux-v5.10/Documentation/devicetree/bindings/power/
Dwakeup-source.txt5 ----------------
7 "wakeup-source" boolean property.
18 ---------------------------------------------------------
20 1. "enable-sdio-wakeup" Documentation/devicetree/bindings/mmc/mmc.txt
21 2. "gpio-key,wakeup" Documentation/devicetree/bindings/input/gpio-keys{,-polled}.txt
22 3. "has-tpo" Documentation/devicetree/bindings/rtc/rtc-opal.txt
23 4. "linux,wakeup" Documentation/devicetree/bindings/input/gpio-matrix-keypad.txt
26 5. "linux,keypad-wakeup" Documentation/devicetree/bindings/input/qcom,pm8xxx-keypad.txt
27 6. "linux,input-wakeup" Documentation/devicetree/bindings/input/samsung-keypad.txt
28 7. "nvidia,wakeup-source" Documentation/devicetree/bindings/input/nvidia,tegra20-kbc.txt
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