iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
linux/arch/arm64/boot/dts/rockchip/rk3399-gru-chromebook.dtsi
zain wang 8123437cf4 arm64: dts: rockchip: Set RK3399-Gru PCLK_EDP to 24 MHz 
We've found the AUX channel to be less reliable with PCLK_EDP at a
higher rate (typically 25 MHz). This is especially important on systems
with PSR-enabled panels (like Gru-Kevin), since we make heavy, constant
use of AUX.

According to Rockchip, using any rate other than 24 MHz can cause
"problems between syncing the PHY an PCLK", which leads to all sorts of
unreliabilities around register operations.

Fixes: d67a38c5a623 ("arm64: dts: rockchip: move core edp from rk3399-kevin to shared chromebook")
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: zain wang <wzz@rock-chips.com>
Signed-off-by: Brian Norris <briannorris@chromium.org>
Link: https://lore.kernel.org/r/20220830131212.v2.1.I98d30623f13b785ca77094d0c0fd4339550553b6@changeid
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2022-09-04 18:17:47 +02:00

593 lines
11 KiB
Plaintext
Raw Blame History

// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*
* Google Gru-Chromebook shared properties
*
* Copyright 2018 Google, Inc
*/
#include "rk3399-gru.dtsi"
/ {
pp900_ap: pp900-ap {
compatible = "regulator-fixed";
regulator-name = "pp900_ap";
/* EC turns on w/ pp900_ap_en; always on for AP */
regulator-always-on;
regulator-boot-on;
regulator-min-microvolt = <900000>;
regulator-max-microvolt = <900000>;
vin-supply = <&ppvar_sys>;
};
/* EC turns on w/ pp900_usb_en */
pp900_usb: pp900-ap {
};
/* EC turns on w/ pp900_pcie_en */
pp900_pcie: pp900-ap {
};
pp3000: pp3000 {
compatible = "regulator-fixed";
regulator-name = "pp3000";
pinctrl-names = "default";
pinctrl-0 = <&pp3000_en>;
enable-active-high;
gpio = <&gpio0 12 GPIO_ACTIVE_HIGH>;
regulator-always-on;
regulator-boot-on;
regulator-min-microvolt = <3000000>;
regulator-max-microvolt = <3000000>;
vin-supply = <&ppvar_sys>;
};
ppvar_centerlogic_pwm: ppvar-centerlogic-pwm {
compatible = "pwm-regulator";
regulator-name = "ppvar_centerlogic_pwm";
pwms = <&pwm3 0 3337 0>;
pwm-supply = <&ppvar_sys>;
pwm-dutycycle-range = <100 0>;
pwm-dutycycle-unit = <100>;
/* EC turns on w/ ppvar_centerlogic_en; always on for AP */
regulator-always-on;
regulator-boot-on;
regulator-min-microvolt = <799434>;
regulator-max-microvolt = <1049925>;
};
ppvar_centerlogic: ppvar-centerlogic {
compatible = "vctrl-regulator";
regulator-name = "ppvar_centerlogic";
regulator-min-microvolt = <799434>;
regulator-max-microvolt = <1049925>;
ctrl-supply = <&ppvar_centerlogic_pwm>;
ctrl-voltage-range = <799434 1049925>;
regulator-settling-time-up-us = <378>;
min-slew-down-rate = <225>;
ovp-threshold-percent = <16>;
};
/* Schematics call this PPVAR even though it's fixed */
ppvar_logic: ppvar-logic {
compatible = "regulator-fixed";
regulator-name = "ppvar_logic";
/* EC turns on w/ ppvar_logic_en; always on for AP */
regulator-always-on;
regulator-boot-on;
regulator-min-microvolt = <900000>;
regulator-max-microvolt = <900000>;
vin-supply = <&ppvar_sys>;
};
pp1800_audio: pp1800-audio {
compatible = "regulator-fixed";
regulator-name = "pp1800_audio";
pinctrl-names = "default";
pinctrl-0 = <&pp1800_audio_en>;
enable-active-high;
gpio = <&gpio0 2 GPIO_ACTIVE_HIGH>;
regulator-always-on;
regulator-boot-on;
vin-supply = <&pp1800>;
};
/* gpio is shared with pp3300_wifi_bt */
pp1800_pcie: pp1800-pcie {
compatible = "regulator-fixed";
regulator-name = "pp1800_pcie";
pinctrl-names = "default";
pinctrl-0 = <&wlan_module_pd_l>;
enable-active-high;
gpio = <&gpio0 4 GPIO_ACTIVE_HIGH>;
/*
* Need to wait 1ms + ramp-up time before we can power on WiFi.
* This has been approximated as 8ms total.
*/
regulator-enable-ramp-delay = <8000>;
vin-supply = <&pp1800>;
};
/* Always on; plain and simple */
pp3000_ap: pp3000_emmc: pp3000 {
};
pp1500_ap_io: pp1500-ap-io {
compatible = "regulator-fixed";
regulator-name = "pp1500_ap_io";
pinctrl-names = "default";
pinctrl-0 = <&pp1500_en>;
enable-active-high;
gpio = <&gpio0 10 GPIO_ACTIVE_HIGH>;
regulator-always-on;
regulator-boot-on;
regulator-min-microvolt = <1500000>;
regulator-max-microvolt = <1500000>;
vin-supply = <&pp1800>;
};
pp3300_disp: pp3300-disp {
compatible = "regulator-fixed";
regulator-name = "pp3300_disp";
pinctrl-names = "default";
pinctrl-0 = <&pp3300_disp_en>;
enable-active-high;
gpio = <&gpio4 27 GPIO_ACTIVE_HIGH>;
startup-delay-us = <2000>;
vin-supply = <&pp3300>;
};
/* EC turns on w/ pp3300_usb_en_l */
pp3300_usb: pp3300 {
};
/* gpio is shared with pp1800_pcie and pinctrl is set there */
pp3300_wifi_bt: pp3300-wifi-bt {
compatible = "regulator-fixed";
regulator-name = "pp3300_wifi_bt";
enable-active-high;
gpio = <&gpio0 4 GPIO_ACTIVE_HIGH>;
vin-supply = <&pp3300>;
};
/*
* This is a bit of a hack. The WiFi module should be reset at least
* 1ms after its regulators have ramped up (max rampup time is ~7ms).
* With some stretching of the imagination, we can call the 1.8V
* regulator a supply.
*/
wlan_pd_n: wlan-pd-n {
compatible = "regulator-fixed";
regulator-name = "wlan_pd_n";
pinctrl-names = "default";
pinctrl-0 = <&wlan_module_reset_l>;
enable-active-high;
gpio = <&gpio1 11 GPIO_ACTIVE_HIGH>;
vin-supply = <&pp1800_pcie>;
};
backlight: backlight {
compatible = "pwm-backlight";
enable-gpios = <&gpio1 17 GPIO_ACTIVE_HIGH>;
power-supply = <&pp3300_disp>;
pinctrl-names = "default";
pinctrl-0 = <&bl_en>;
pwm-delay-us = <10000>;
};
gpio_keys: gpio-keys {
compatible = "gpio-keys";
pinctrl-names = "default";
pinctrl-0 = <&bt_host_wake_l>;
wake_on_bt: key-wake-on-bt {
label = "Wake-on-Bluetooth";
gpios = <&gpio0 3 GPIO_ACTIVE_LOW>;
linux,code = <KEY_WAKEUP>;
wakeup-source;
};
};
};
&ppvar_bigcpu {
min-slew-down-rate = <225>;
ovp-threshold-percent = <16>;
};
&ppvar_litcpu {
min-slew-down-rate = <225>;
ovp-threshold-percent = <16>;
};
&ppvar_gpu {
min-slew-down-rate = <225>;
ovp-threshold-percent = <16>;
};
&cdn_dp {
extcon = <&usbc_extcon0>, <&usbc_extcon1>;
};
&dmc {
center-supply = <&ppvar_centerlogic>;
rockchip,pd-idle-dis-freq-hz = <800000000>;
rockchip,sr-idle-dis-freq-hz = <800000000>;
rockchip,sr-mc-gate-idle-dis-freq-hz = <800000000>;
};
&edp {
status = "okay";
/*
* eDP PHY/clk don't sync reliably at anything other than 24 MHz. Only
* set this here, because rk3399-gru.dtsi ensures we can generate this
* off GPLL=600MHz, whereas some other RK3399 boards may not.
*/
assigned-clocks = <&cru PCLK_EDP>;
assigned-clock-rates = <24000000>;
ports {
edp_out: port@1 {
reg = <1>;
#address-cells = <1>;
#size-cells = <0>;
edp_out_panel: endpoint@0 {
reg = <0>;
remote-endpoint = <&panel_in_edp>;
};
};
};
};
&gpio0 {
gpio-line-names = /* GPIO0 A 0-7 */
"AP_RTC_CLK_IN",
"EC_AP_INT_L",
"PP1800_AUDIO_EN",
"BT_HOST_WAKE_L",
"WLAN_MODULE_PD_L",
"H1_INT_OD_L",
"CENTERLOGIC_DVS_PWM",
"",
/* GPIO0 B 0-4 */
"WIFI_HOST_WAKE_L",
"PMUIO2_33_18_L",
"PP1500_EN",
"AP_EC_WARM_RESET_REQ",
"PP3000_EN";
};
&gpio1 {
gpio-line-names = /* GPIO1 A 0-7 */
"",
"",
"SPK_PA_EN",
"",
"TRACKPAD_INT_L",
"AP_EC_S3_S0_L",
"AP_EC_OVERTEMP",
"AP_SPI_FLASH_MISO",
/* GPIO1 B 0-7 */
"AP_SPI_FLASH_MOSI_R",
"AP_SPI_FLASH_CLK_R",
"AP_SPI_FLASH_CS_L_R",
"WLAN_MODULE_RESET_L",
"WIFI_DISABLE_L",
"MIC_INT",
"",
"AP_I2C_DVS_SDA",
/* GPIO1 C 0-7 */
"AP_I2C_DVS_SCL",
"AP_BL_EN",
/*
* AP_FLASH_WP is crossystem ABI. Schematics call it
* AP_FW_WP or CPU1_FW_WP, depending on the variant.
*/
"AP_FLASH_WP",
"LITCPU_DVS_PWM",
"AP_I2C_AUDIO_SDA",
"AP_I2C_AUDIO_SCL",
"",
"HEADSET_INT_L";
};
&gpio2 {
gpio-line-names = /* GPIO2 A 0-7 */
"",
"",
"SD_IO_PWR_EN",
"",
"",
"",
"",
"",
/* GPIO2 B 0-7 */
"",
"",
"",
"",
"",
"",
"",
"",
/* GPIO2 C 0-7 */
"",
"",
"",
"",
"AP_SPI_EC_MISO",
"AP_SPI_EC_MOSI",
"AP_SPI_EC_CLK",
"AP_SPI_EC_CS_L",
/* GPIO2 D 0-4 */
"BT_DEV_WAKE_L",
"",
"WIFI_PCIE_CLKREQ_L",
"WIFI_PERST_L",
"SD_PWR_3000_1800_L";
};
&gpio3 {
gpio-line-names = /* GPIO3 A 0-7 */
"",
"",
"",
"",
"AP_SPI_TPM_MISO",
"AP_SPI_TPM_MOSI_R",
"AP_SPI_TPM_CLK_R",
"AP_SPI_TPM_CS_L_R",
/* GPIO3 B 0-7 */
"EC_IN_RW",
"",
"AP_I2C_TP_SDA",
"AP_I2C_TP_SCL",
"AP_I2C_TP_PU_EN",
"TOUCH_INT_L",
"",
"",
/* GPIO3 C 0-7 */
"",
"",
"",
"",
"",
"",
"",
"",
/* GPIO3 D 0-7 */
"I2S0_SCLK",
"I2S0_LRCK_RX",
"I2S0_LRCK_TX",
"I2S0_SDI_0",
"I2S0_SDI_1",
"",
"I2S0_SDO_1",
"I2S0_SDO_0";
};
&gpio4 {
gpio-line-names = /* GPIO4 A 0-7 */
"I2S_MCLK",
"AP_I2C_MIC_SDA",
"AP_I2C_MIC_SCL",
"",
"",
"",
"",
"",
/* GPIO4 B 0-7 */
"",
"",
"",
"",
"",
"",
"",
"",
/* GPIO4 C 0-7 */
"AP_I2C_TS_SDA",
"AP_I2C_TS_SCL",
"GPU_DVS_PWM",
"UART_DBG_TX_AP_RX",
"UART_AP_TX_DBG_RX",
"",
"BIGCPU_DVS_PWM",
"EDP_HPD_3V0",
/* GPIO4 D 0-5 */
"SD_CARD_DET_L",
"USB_DP_HPD",
"TOUCH_RESET_L",
"PP3300_DISP_EN",
"",
"SD_SLOT_PWR_EN";
};
ap_i2c_mic: &i2c1 {
status = "okay";
clock-frequency = <400000>;
/* These are relatively safe rise/fall times */
i2c-scl-falling-time-ns = <50>;
i2c-scl-rising-time-ns = <300>;
headsetcodec: rt5514@57 {
compatible = "realtek,rt5514";
reg = <0x57>;
realtek,dmic-init-delay-ms = <20>;
};
};
ap_i2c_tp: &i2c5 {
status = "okay";
clock-frequency = <400000>;
/* These are relatively safe rise/fall times */
i2c-scl-falling-time-ns = <50>;
i2c-scl-rising-time-ns = <300>;
/*
* Note strange pullup enable. Apparently this avoids leakage but
* still allows us to get nice 4.7K pullups for high speed i2c
* transfers. Basically we want the pullup on whenever the ap is
* alive, so the "en" pin just gets set to output high.
*/
pinctrl-0 = <&i2c5_xfer &ap_i2c_tp_pu_en>;
};
&cros_ec {
cros_ec_pwm: pwm {
compatible = "google,cros-ec-pwm";
#pwm-cells = <1>;
};
usbc_extcon1: extcon1 {
compatible = "google,extcon-usbc-cros-ec";
google,usb-port-id = <1>;
};
};
&sound {
rockchip,codec = <&max98357a &headsetcodec
&codec &wacky_spi_audio &cdn_dp>;
};
&spi2 {
wacky_spi_audio: spi2@0 {
compatible = "realtek,rt5514";
reg = <0>;
interrupt-parent = <&gpio1>;
interrupts = <13 IRQ_TYPE_LEVEL_HIGH>;
pinctrl-names = "default";
pinctrl-0 = <&mic_int>;
/* May run faster once verified. */
spi-max-frequency = <10000000>;
wakeup-source;
};
};
&pci_rootport {
mvl_wifi: wifi@0,0 {
compatible = "pci1b4b,2b42";
reg = <0x83010000 0x0 0x00000000 0x0 0x00100000
0x83010000 0x0 0x00100000 0x0 0x00100000>;
interrupt-parent = <&gpio0>;
interrupts = <8 IRQ_TYPE_LEVEL_LOW>;
pinctrl-names = "default";
pinctrl-0 = <&wlan_host_wake_l>;
wakeup-source;
};
};
&tcphy1 {
status = "okay";
extcon = <&usbc_extcon1>;
};
&u2phy1 {
status = "okay";
};
&usb_host0_ehci {
status = "okay";
};
&usb_host1_ehci {
status = "okay";
};
&usb_host1_ohci {
status = "okay";
};
&usbdrd3_1 {
status = "okay";
extcon = <&usbc_extcon1>;
};
&usbdrd_dwc3_1 {
status = "okay";
dr_mode = "host";
};
&pinctrl {
discrete-regulators {
pp1500_en: pp1500-en {
rockchip,pins = <0 RK_PB2 RK_FUNC_GPIO
&pcfg_pull_none>;
};
pp1800_audio_en: pp1800-audio-en {
rockchip,pins = <0 RK_PA2 RK_FUNC_GPIO
&pcfg_pull_down>;
};
pp3000_en: pp3000-en {
rockchip,pins = <0 RK_PB4 RK_FUNC_GPIO
&pcfg_pull_none>;
};
pp3300_disp_en: pp3300-disp-en {
rockchip,pins = <4 RK_PD3 RK_FUNC_GPIO
&pcfg_pull_none>;
};
wlan_module_pd_l: wlan-module-pd-l {
rockchip,pins = <0 RK_PA4 RK_FUNC_GPIO
&pcfg_pull_down>;
};
};
};
&wifi {
wifi_perst_l: wifi-perst-l {
rockchip,pins = <2 RK_PD3 RK_FUNC_GPIO &pcfg_pull_none>;
};
wlan_host_wake_l: wlan-host-wake-l {
/* Kevin has an external pull up, but Bob does not */
rockchip,pins = <0 RK_PB0 RK_FUNC_GPIO &pcfg_pull_none>;
};
};
Reference in New Issue View Git Blame Copy Permalink