Message ID | 20211208173609.4064-1-digetx@gmail.com |
---|---|
Headers | show |
Series | NVIDIA Tegra ARM32 device-tree patches for 5.17 (new devices and more) | expand |
On Wed, Dec 08, 2021 at 08:35:48PM +0300, Dmitry Osipenko wrote: > From: Michał Mirosław <mirq-linux@rere.qmqm.pl> > > Add phandle names for memory/I2C/SPI/USB/SDMMC controller nodes to allow > for cleaner device descriptions. > > Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> > --- > arch/arm/boot/dts/tegra30.dtsi | 36 +++++++++++++++++----------------- > 1 file changed, 18 insertions(+), 18 deletions(-) We typically only add those when they are really needed. These are technically harmless because without a reference, DTC won't actually create a phandle property, but dangling labels are the kind of thing that some janitor may at some point want to remove with some scripts, so I'm hesitant to apply this because it'll likely cause churn in the future. Thierry
On Wed, Dec 08, 2021 at 08:35:50PM +0300, Dmitry Osipenko wrote: > From: Nikola Milosavljevic <mnidza@outlook.com> > > Add device-tree for Tegra20-based ASUS Transformer EeePad TF101. > > Link: https://wiki.postmarketos.org/wiki/ASUS_Eee_Pad_Transformer_(asus-tf101) > Co-developed-by: David Heidelberg <david@ixit.cz> > Signed-off-by: David Heidelberg <david@ixit.cz> > Co-developed-by: Svyatoslav Ryhel <clamor95@gmail.com> > Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com> > Co-developed-by: Antoni Aloy Torrens <aaloytorrens@gmail.com> > Signed-off-by: Antoni Aloy Torrens <aaloytorrens@gmail.com> > Signed-off-by: Nikola Milosavljevic <mnidza@outlook.com> > Co-developed-by: Dmitry Osipenko <digetx@gmail.com> > Signed-off-by: Dmitry Osipenko <digetx@gmail.com> > --- > arch/arm/boot/dts/Makefile | 1 + > arch/arm/boot/dts/tegra20-asus-tf101.dts | 1191 ++++++++++++++++++++++ > 2 files changed, 1192 insertions(+) > create mode 100644 arch/arm/boot/dts/tegra20-asus-tf101.dts > > diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile > index 8a2dfdf01ce3..8fdebf7c1afe 100644 > --- a/arch/arm/boot/dts/Makefile > +++ b/arch/arm/boot/dts/Makefile > @@ -1304,6 +1304,7 @@ dtb-$(CONFIG_MACH_SUNIV) += \ > suniv-f1c100s-licheepi-nano.dtb > dtb-$(CONFIG_ARCH_TEGRA_2x_SOC) += \ > tegra20-acer-a500-picasso.dtb \ > + tegra20-asus-tf101.dtb \ > tegra20-harmony.dtb \ > tegra20-colibri-eval-v3.dtb \ > tegra20-colibri-iris.dtb \ > diff --git a/arch/arm/boot/dts/tegra20-asus-tf101.dts b/arch/arm/boot/dts/tegra20-asus-tf101.dts > new file mode 100644 > index 000000000000..4dc0722c28f5 > --- /dev/null > +++ b/arch/arm/boot/dts/tegra20-asus-tf101.dts > @@ -0,0 +1,1191 @@ > +// SPDX-License-Identifier: GPL-2.0 > +/dts-v1/; > + > +#include <dt-bindings/input/atmel-maxtouch.h> > +#include <dt-bindings/input/gpio-keys.h> > +#include <dt-bindings/input/input.h> > +#include <dt-bindings/thermal/thermal.h> > + > +#include "tegra20.dtsi" > +#include "tegra20-cpu-opp.dtsi" > +#include "tegra20-cpu-opp-microvolt.dtsi" > + > +/ { > + model = "ASUS EeePad Transformer TF101"; > + compatible = "asus,tf101", "nvidia,tegra20"; > + chassis-type = "convertible"; > + > + aliases { > + mmc0 = &sdmmc4; /* eMMC */ > + mmc1 = &sdmmc3; /* MicroSD */ > + mmc2 = &sdmmc1; /* WiFi */ > + > + rtc0 = &pmic; > + rtc1 = "/rtc@7000e000"; > + > + serial0 = &uartd; > + serial1 = &uartc; /* Bluetooth */ > + serial2 = &uartb; /* GPS */ > + }; > + > + /* > + * The decompressor and also some bootloaders rely on a > + * pre-existing /chosen node to be available to insert the > + * command line and merge other ATAGS info. > + */ > + chosen {}; > + > + memory@0 { > + reg = <0x00000000 0x40000000>; > + }; > + > + reserved-memory { > + #address-cells = <1>; > + #size-cells = <1>; > + ranges; > + > + ramoops@2ffe0000 { > + compatible = "ramoops"; > + reg = <0x2ffe0000 0x10000>; /* 64kB */ > + console-size = <0x8000>; /* 32kB */ > + record-size = <0x400>; /* 1kB */ > + ecc-size = <16>; > + }; > + > + linux,cma@30000000 { > + compatible = "shared-dma-pool"; > + alloc-ranges = <0x30000000 0x10000000>; > + size = <0x10000000>; /* 256MiB */ > + linux,cma-default; > + reusable; > + }; > + }; > + > + host1x@50000000 { > + dc@54200000 { > + rgb { > + status = "okay"; > + > + port@0 { > + lcd_output: endpoint { > + remote-endpoint = <&lvds_encoder_input>; > + bus-width = <18>; > + }; > + }; > + }; > + }; > + > + hdmi@54280000 { > + status = "okay"; > + > + vdd-supply = <&hdmi_vdd_reg>; > + pll-supply = <&hdmi_pll_reg>; > + hdmi-supply = <&vdd_hdmi_en>; > + > + nvidia,ddc-i2c-bus = <&hdmi_ddc>; > + nvidia,hpd-gpio = <&gpio TEGRA_GPIO(N, 7) > + GPIO_ACTIVE_HIGH>; > + }; > + }; > + > + gpio@6000d000 { > + charging-enable-hog { > + gpio-hog; > + gpios = <TEGRA_GPIO(R, 6) GPIO_ACTIVE_HIGH>; > + output-low; > + }; > + }; Isn't this something that we may want to change at some point? My understanding is that GPIO hogs are permanent, so it won't be possible to grab GPIO R.6 and change this. Are there any plans to allow setting this at runtime? [...] > + i2c2: i2c@7000c400 { > + status = "okay"; > + clock-frequency = <100000>; > + }; > + > + i2cmux { This doesn't belong here. The ordering is by unit-address and everything without unit-address needs to move after the nodes with unit-addresses and be sorted alphabetically. > + compatible = "i2c-mux-pinctrl"; > + #address-cells = <1>; > + #size-cells = <0>; > + > + i2c-parent = <&i2c2>; > + > + pinctrl-names = "ddc", "pta", "idle"; > + pinctrl-0 = <&state_i2cmux_ddc>; > + pinctrl-1 = <&state_i2cmux_pta>; > + pinctrl-2 = <&state_i2cmux_idle>; > + > + hdmi_ddc: i2c@0 { > + reg = <0>; > + #address-cells = <1>; > + #size-cells = <0>; > + }; > + > + lvds_ddc: i2c@1 { > + reg = <1>; > + #address-cells = <1>; > + #size-cells = <0>; > + > + smart-battery@b { > + compatible = "ti,bq20z75", "sbs,sbs-battery"; > + reg = <0xb>; > + sbs,i2c-retry-count = <2>; > + sbs,poll-retry-count = <10>; > + power-supplies = <&mains>; > + }; > + }; > + }; > + > + i2c@7000c500 { > + status = "okay"; > + clock-frequency = <400000>; > + }; > + > + i2c@7000d000 { > + status = "okay"; > + clock-frequency = <400000>; > + > + pmic: pmic@34 { > + compatible = "ti,tps6586x"; > + reg = <0x34>; > + interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>; > + > + ti,system-power-controller; > + > + #gpio-cells = <2>; > + gpio-controller; > + > + sys-supply = <&vdd_5v0_sys>; > + vin-sm0-supply = <&sys_reg>; > + vin-sm1-supply = <&sys_reg>; > + vin-sm2-supply = <&sys_reg>; > + vinldo01-supply = <&sm2_reg>; > + vinldo23-supply = <&sm2_reg>; > + vinldo4-supply = <&sm2_reg>; > + vinldo678-supply = <&sm2_reg>; > + vinldo9-supply = <&sm2_reg>; > + > + regulators { > + sys_reg: sys { > + regulator-name = "vdd_sys"; > + regulator-always-on; > + }; > + > + vdd_core: sm0 { > + regulator-name = "vdd_sm0,vdd_core"; > + regulator-min-microvolt = <950000>; > + regulator-max-microvolt = <1300000>; > + regulator-coupled-with = <&rtc_vdd &vdd_cpu>; > + regulator-coupled-max-spread = <170000 550000>; > + regulator-always-on; > + regulator-boot-on; > + > + nvidia,tegra-core-regulator; > + }; > + > + vdd_cpu: sm1 { > + regulator-name = "vdd_sm1,vdd_cpu"; > + regulator-min-microvolt = <750000>; > + regulator-max-microvolt = <1125000>; > + regulator-coupled-with = <&vdd_core &rtc_vdd>; > + regulator-coupled-max-spread = <550000 550000>; > + regulator-always-on; > + regulator-boot-on; > + > + nvidia,tegra-cpu-regulator; > + }; > + > + sm2_reg: sm2 { > + regulator-name = "vdd_sm2,vin_ldo*"; > + regulator-min-microvolt = <3700000>; > + regulator-max-microvolt = <3700000>; > + regulator-always-on; > + }; > + > + /* LDO0 is not connected to anything */ > + > + ldo1 { > + regulator-name = "vdd_ldo1,avdd_pll*"; > + regulator-min-microvolt = <1100000>; > + regulator-max-microvolt = <1100000>; > + regulator-always-on; > + }; > + > + rtc_vdd: ldo2 { > + regulator-name = "vdd_ldo2,vdd_rtc"; > + regulator-min-microvolt = <950000>; > + regulator-max-microvolt = <1300000>; > + regulator-coupled-with = <&vdd_core &vdd_cpu>; > + regulator-coupled-max-spread = <170000 550000>; > + regulator-always-on; > + regulator-boot-on; > + > + nvidia,tegra-rtc-regulator; > + }; > + > + ldo3 { > + regulator-name = "vdd_ldo3,avdd_usb*"; > + regulator-min-microvolt = <3300000>; > + regulator-max-microvolt = <3300000>; > + regulator-always-on; > + }; > + > + ldo4 { > + regulator-name = "vdd_ldo4,avdd_osc,vddio_sys"; > + regulator-min-microvolt = <1800000>; > + regulator-max-microvolt = <1800000>; > + regulator-always-on; > + }; > + > + vcore_emmc: ldo5 { > + regulator-name = "vdd_ldo5,vcore_mmc"; > + regulator-min-microvolt = <2850000>; > + regulator-max-microvolt = <2850000>; > + regulator-always-on; > + }; > + > + ldo6 { > + regulator-name = "vdd_ldo6,avdd_vdac"; > + regulator-min-microvolt = <1800000>; > + regulator-max-microvolt = <1800000>; > + }; > + > + hdmi_vdd_reg: ldo7 { > + regulator-name = "vdd_ldo7,avdd_hdmi,vdd_fuse"; > + regulator-min-microvolt = <3300000>; > + regulator-max-microvolt = <3300000>; > + }; > + > + hdmi_pll_reg: ldo8 { > + regulator-name = "vdd_ldo8,avdd_hdmi_pll"; > + regulator-min-microvolt = <1800000>; > + regulator-max-microvolt = <1800000>; > + }; > + > + ldo9 { > + regulator-name = "vdd_ldo9,avdd_2v85,vdd_ddr_rx"; > + regulator-min-microvolt = <2850000>; > + regulator-max-microvolt = <2850000>; > + regulator-always-on; > + }; > + > + ldo_rtc { > + regulator-name = "vdd_rtc_out,vdd_cell"; > + regulator-min-microvolt = <3300000>; > + regulator-max-microvolt = <3300000>; > + regulator-always-on; > + }; > + }; > + }; > + > + nct1008: temperature-sensor@4c { > + compatible = "onnn,nct1008"; > + reg = <0x4c>; > + vcc-supply = <&vdd_3v3_sys>; > + > + interrupt-parent = <&gpio>; > + interrupts = <TEGRA_GPIO(N, 6) IRQ_TYPE_EDGE_FALLING>; > + > + #thermal-sensor-cells = <1>; > + }; > + }; > + > + pmc@7000e400 { > + nvidia,invert-interrupt; > + nvidia,suspend-mode = <1>; > + nvidia,cpu-pwr-good-time = <2000>; > + nvidia,cpu-pwr-off-time = <100>; > + nvidia,core-pwr-good-time = <3845 3845>; > + nvidia,core-pwr-off-time = <458>; > + nvidia,sys-clock-req-active-high; > + core-supply = <&vdd_core>; > + }; > + > + /* Peripheral USB via ASUS connector */ > + usb@c5000000 { > + compatible = "nvidia,tegra20-udc"; > + status = "okay"; > + dr_mode = "peripheral"; > + }; > + > + usb-phy@c5000000 { > + status = "okay"; > + dr_mode = "peripheral"; > + nvidia,xcvr-setup-use-fuses; > + nvidia,xcvr-lsfslew = <2>; > + nvidia,xcvr-lsrslew = <2>; > + vbus-supply = <&vdd_5v0_sys>; > + }; > + > + /* Dock's USB port */ > + usb@c5008000 { > + status = "okay"; > + }; > + > + usb-phy@c5008000 { > + status = "okay"; > + nvidia,xcvr-setup-use-fuses; > + vbus-supply = <&vdd_5v0_sys>; > + }; > + > + brcm_wifi_pwrseq: wifi-pwrseq { > + compatible = "mmc-pwrseq-simple"; > + > + clocks = <&tegra_pmc TEGRA_PMC_CLK_BLINK>; > + clock-names = "ext_clock"; > + > + reset-gpios = <&gpio TEGRA_GPIO(K, 6) GPIO_ACTIVE_LOW>; > + post-power-on-delay-ms = <200>; > + power-off-delay-us = <200>; > + }; > + > + sdmmc1: mmc@c8000000 { > + status = "okay"; > + > + #address-cells = <1>; > + #size-cells = <0>; > + > + assigned-clocks = <&tegra_car TEGRA20_CLK_SDMMC1>; > + assigned-clock-parents = <&tegra_car TEGRA20_CLK_PLL_C>; > + assigned-clock-rates = <40000000>; > + > + max-frequency = <40000000>; > + keep-power-in-suspend; > + bus-width = <4>; > + non-removable; > + > + mmc-pwrseq = <&brcm_wifi_pwrseq>; > + vmmc-supply = <&vdd_3v3_sys>; > + vqmmc-supply = <&vdd_3v3_sys>; > + > + /* Azurewave AW-NH615 BCM4329B1 */ > + wifi@1 { > + compatible = "brcm,bcm4329-fmac"; > + reg = <1>; > + > + interrupt-parent = <&gpio>; > + interrupts = <TEGRA_GPIO(S, 0) IRQ_TYPE_LEVEL_HIGH>; > + interrupt-names = "host-wake"; > + }; > + }; > + > + sdmmc3: mmc@c8000400 { > + status = "okay"; > + bus-width = <4>; > + cd-gpios = <&gpio TEGRA_GPIO(I, 5) GPIO_ACTIVE_LOW>; > + wp-gpios = <&gpio TEGRA_GPIO(H, 1) GPIO_ACTIVE_HIGH>; > + power-gpios = <&gpio TEGRA_GPIO(I, 6) GPIO_ACTIVE_HIGH>; > + vmmc-supply = <&vdd_3v3_sys>; > + vqmmc-supply = <&vdd_3v3_sys>; > + }; > + > + sdmmc4: mmc@c8000600 { > + status = "okay"; > + bus-width = <8>; > + vmmc-supply = <&vcore_emmc>; > + vqmmc-supply = <&vdd_3v3_sys>; > + non-removable; > + }; > + > + mains: ac-adapter-detect { > + compatible = "gpio-charger"; > + charger-type = "mains"; > + gpios = <&gpio TEGRA_GPIO(V, 3) GPIO_ACTIVE_LOW>; > + }; > + > + backlight: backlight { > + compatible = "pwm-backlight"; > + > + enable-gpios = <&gpio TEGRA_GPIO(D, 4) GPIO_ACTIVE_HIGH>; > + power-supply = <&vdd_3v3_sys>; > + pwms = <&pwm 2 4000000>; > + > + brightness-levels = <7 255>; > + num-interpolated-steps = <248>; > + default-brightness-level = <20>; > + }; > + > + /* PMIC has a built-in 32KHz oscillator which is used by PMC */ > + clk32k_in: clock-32k-in { > + compatible = "fixed-clock"; > + clock-frequency = <32768>; > + #clock-cells = <0>; > + }; > + > + cpus { > + cpu0: cpu@0 { > + cpu-supply = <&vdd_cpu>; > + operating-points-v2 = <&cpu0_opp_table>; > + #cooling-cells = <2>; > + }; > + > + cpu1: cpu@1 { > + cpu-supply = <&vdd_cpu>; > + operating-points-v2 = <&cpu0_opp_table>; > + #cooling-cells = <2>; > + }; > + }; > + > + gpio-keys { > + compatible = "gpio-keys"; > + > + dock-hall-sensor { > + label = "Lid"; > + gpios = <&gpio TEGRA_GPIO(S, 4) GPIO_ACTIVE_LOW>; > + linux,input-type = <EV_SW>; > + linux,code = <SW_LID>; > + debounce-interval = <500>; > + wakeup-event-action = <EV_ACT_ASSERTED>; > + wakeup-source; > + }; > + > + power { > + label = "Power"; > + gpios = <&gpio TEGRA_GPIO(V, 2) GPIO_ACTIVE_LOW>; > + linux,code = <KEY_POWER>; > + debounce-interval = <10>; > + wakeup-event-action = <EV_ACT_ASSERTED>; > + wakeup-source; > + }; > + > + volume-up { > + label = "Volume Up"; > + gpios = <&gpio TEGRA_GPIO(Q, 5) GPIO_ACTIVE_LOW>; > + linux,code = <KEY_VOLUMEUP>; > + debounce-interval = <10>; > + wakeup-event-action = <EV_ACT_ASSERTED>; > + wakeup-source; > + }; > + > + volume-down { > + label = "Volume Down"; > + gpios = <&gpio TEGRA_GPIO(Q, 4) GPIO_ACTIVE_LOW>; > + linux,code = <KEY_VOLUMEDOWN>; > + debounce-interval = <10>; > + wakeup-event-action = <EV_ACT_ASSERTED>; > + wakeup-source; > + }; > + }; > + > + lvds-encoder { > + compatible = "ti,sn75lvds83", "lvds-encoder"; > + > + powerdown-gpios = <&gpio TEGRA_GPIO(B, 2) GPIO_ACTIVE_LOW>; > + power-supply = <&vdd_3v3_sys>; > + > + ports { > + #address-cells = <1>; > + #size-cells = <0>; > + > + port@0 { > + reg = <0>; > + > + lvds_encoder_input: endpoint { > + remote-endpoint = <&lcd_output>; > + }; > + }; > + > + port@1 { > + reg = <1>; > + > + lvds_encoder_output: endpoint { > + remote-endpoint = <&panel_input>; > + }; > + }; > + }; > + }; > + > + display-panel { > + compatible = "panel-lvds"; > + > + /* AUO B101EW05 using custom timings */ > + > + backlight = <&backlight>; > + ddc-i2c-bus = <&lvds_ddc>; > + power-supply = <&vdd_pnl_reg>; > + > + width-mm = <218>; > + height-mm = <135>; > + > + data-mapping = "jeida-18"; > + > + panel-timing { > + clock-frequency = <71200000>; > + hactive = <1280>; > + vactive = <800>; > + hfront-porch = <8>; > + hback-porch = <18>; > + hsync-len = <184>; > + vsync-len = <3>; > + vfront-porch = <4>; > + vback-porch = <8>; > + }; > + > + port { > + panel_input: endpoint { > + remote-endpoint = <&lvds_encoder_output>; > + }; > + }; > + }; > + > + vdd_5v0_sys: regulator-0 { > + compatible = "regulator-fixed"; > + regulator-name = "vdd_5v0"; > + regulator-min-microvolt = <5000000>; > + regulator-max-microvolt = <5000000>; > + regulator-always-on; > + }; > + > + vdd_3v3_sys: regulator-1 { > + compatible = "regulator-fixed"; > + regulator-name = "vdd_3v3_vs"; > + regulator-min-microvolt = <3300000>; > + regulator-max-microvolt = <3300000>; > + regulator-always-on; > + vin-supply = <&vdd_5v0_sys>; > + }; > + > + regulator-2 { > + compatible = "regulator-fixed"; > + regulator-name = "pcie_vdd"; > + regulator-min-microvolt = <1500000>; > + regulator-max-microvolt = <1500000>; > + gpio = <&pmic 0 GPIO_ACTIVE_HIGH>; > + regulator-always-on; > + }; > + > + vdd_pnl_reg: regulator-3 { > + compatible = "regulator-fixed"; > + regulator-name = "vdd_pnl"; > + regulator-min-microvolt = <2800000>; > + regulator-max-microvolt = <2800000>; > + gpio = <&gpio TEGRA_GPIO(C, 6) GPIO_ACTIVE_HIGH>; > + enable-active-high; > + }; > + > + vdd_1v8_sys: regulator-4 { > + compatible = "regulator-fixed"; > + regulator-name = "vdd_1v8_vs"; > + regulator-min-microvolt = <1800000>; > + regulator-max-microvolt = <1800000>; > + regulator-always-on; > + vin-supply = <&vdd_5v0_sys>; > + }; > + > + vdd_hdmi_en: regulator-5 { > + compatible = "regulator-fixed"; > + regulator-name = "vdd_5v0_hdmi_en"; > + regulator-min-microvolt = <5000000>; > + regulator-max-microvolt = <5000000>; > + regulator-always-on; > + vin-supply = <&vdd_5v0_sys>; > + gpio = <&gpio TEGRA_GPIO(V, 5) GPIO_ACTIVE_HIGH>; > + enable-active-high; > + }; > + > + sound { > + compatible = "asus,tegra-audio-wm8903-tf101", > + "nvidia,tegra-audio-wm8903"; > + nvidia,model = "Asus EeePad Transformer WM8903"; > + > + nvidia,audio-routing = > + "Headphone Jack", "HPOUTR", > + "Headphone Jack", "HPOUTL", > + "Int Spk", "ROP", > + "Int Spk", "RON", > + "Int Spk", "LOP", > + "Int Spk", "LON", > + "Mic Jack", "MICBIAS", > + "IN1L", "Mic Jack"; > + > + nvidia,i2s-controller = <&tegra_i2s1>; > + nvidia,audio-codec = <&wm8903>; > + > + nvidia,spkr-en-gpios = <&wm8903 2 GPIO_ACTIVE_HIGH>; > + nvidia,hp-det-gpios = <&gpio TEGRA_GPIO(W, 2) GPIO_ACTIVE_LOW>; > + nvidia,headset; > + > + clocks = <&tegra_car TEGRA20_CLK_PLL_A>, > + <&tegra_car TEGRA20_CLK_PLL_A_OUT0>, > + <&tegra_car TEGRA20_CLK_CDEV1>; > + clock-names = "pll_a", "pll_a_out0", "mclk"; > + }; > + > + thermal-zones { > + skin-thermal { > + polling-delay-passive = <1000>; /* milliseconds */ > + polling-delay = <0>; /* milliseconds */ > + > + thermal-sensors = <&nct1008 0>; > + }; > + > + cpu-thermal { > + polling-delay-passive = <1000>; /* milliseconds */ > + polling-delay = <5000>; /* milliseconds */ > + > + thermal-sensors = <&nct1008 1>; > + > + trips { > + trip0: cpu-alert0 { > + /* start throttling at 50C */ > + temperature = <50000>; > + hysteresis = <200>; > + type = "passive"; > + }; > + > + trip1: cpu-crit { > + /* shut down at 60C */ > + temperature = <60000>; > + hysteresis = <2000>; > + type = "critical"; > + }; > + }; > + > + cooling-maps { > + map0 { > + trip = <&trip0>; > + cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, > + <&cpu1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; > + }; > + }; > + }; > + }; > + > + memory-controller@7000f400 { > + nvidia,use-ram-code; > + > + emc-tables@3 { > + reg = <0x3>; > + > + #address-cells = <1>; > + #size-cells = <0>; > + > + lpddr2 { > + compatible = "elpida,B8132B2PB-6D-F", "jedec,lpddr2-s4"; > + revision-id1 = <1>; > + density = <2048>; > + io-width = <16>; > + }; > + > + emc-table@25000 { Ugh... looking at the bindings for this the naming here is rather unfortunate. emc-tables@3 and emc-table@*... the top-level emc-tables are really tables, but the emc-table@* are really entries or rows in that table, not tables themselves. It's also rather unfortunate that we duplicate the frequency in both the "reg" and "clock-frequency" properties. One of them would've been enough. Anyway, looks like this has basically been like this since forever, so not much that can be done about it. Again, the memory-controller node needs to be sorted differently. There are other occurrences of this throughout the file. Thierry
On Wed, Dec 08, 2021 at 08:35:51PM +0300, Dmitry Osipenko wrote: > From: Svyatoslav Ryhel <clamor95@gmail.com> > > Add common DTSI for Tegra30 ASUS Transformers. It will be used by multiple > device-trees of ASUS devices. The common part initially was born out of > the ASUS TF300T tablet's device-tree that was created by Michał Mirosław. > It was heavily reworked and improved by Svyatoslav Ryhel, Maxim Schwalm, > Ion Agorria et al. > > [digetx@gmail.com: factored out common part into separate patch and wrote commit message] > Co-developed-by: Ion Agorria <ion@agorria.com> > Signed-off-by: Ion Agorria <ion@agorria.com> > Co-developed-by: Maxim Schwalm <maxim.schwalm@gmail.com> > Signed-off-by: Maxim Schwalm <maxim.schwalm@gmail.com> > Co-developed-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> > Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> > Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com> > Signed-off-by: Dmitry Osipenko <digetx@gmail.com> > --- > .../dts/tegra30-asus-transformer-common.dtsi | 1729 +++++++++++++++++ > 1 file changed, 1729 insertions(+) > create mode 100644 arch/arm/boot/dts/tegra30-asus-transformer-common.dtsi > > diff --git a/arch/arm/boot/dts/tegra30-asus-transformer-common.dtsi b/arch/arm/boot/dts/tegra30-asus-transformer-common.dtsi > new file mode 100644 > index 000000000000..be77212dd8c7 > --- /dev/null > +++ b/arch/arm/boot/dts/tegra30-asus-transformer-common.dtsi > @@ -0,0 +1,1729 @@ > +// SPDX-License-Identifier: GPL-2.0 > + > +#include <dt-bindings/input/gpio-keys.h> > +#include <dt-bindings/input/input.h> > +#include <dt-bindings/thermal/thermal.h> > + > +#include "tegra30.dtsi" > +#include "tegra30-cpu-opp.dtsi" > +#include "tegra30-cpu-opp-microvolt.dtsi" > + > +/ { > + chassis-type = "convertible"; > + > + aliases { > + mmc0 = &sdmmc4; /* eMMC */ Looks like a tab snuck in there... otherwise this also has some nodes sorted in the wrong order. [...] > + pad-keys { Any specific reason why this is called pad-keys? We call it gpio-keys everywhere else. Thierry
10.12.2021 18:22, Thierry Reding пишет: > On Wed, Dec 08, 2021 at 08:35:48PM +0300, Dmitry Osipenko wrote: >> From: Michał Mirosław <mirq-linux@rere.qmqm.pl> >> >> Add phandle names for memory/I2C/SPI/USB/SDMMC controller nodes to allow >> for cleaner device descriptions. >> >> Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> >> --- >> arch/arm/boot/dts/tegra30.dtsi | 36 +++++++++++++++++----------------- >> 1 file changed, 18 insertions(+), 18 deletions(-) > > We typically only add those when they are really needed. These are > technically harmless because without a reference, DTC won't actually > create a phandle property, but dangling labels are the kind of thing > that some janitor may at some point want to remove with some scripts, > so I'm hesitant to apply this because it'll likely cause churn in the > future. The plan is to add labels for T20 and switch all DTs to use those phandles consistently, but that's the plan for the next kernel release. Those labels are practically useful when you porting something from old downstream kernel because it uses those human-readable names instead of the addresses.
10.12.2021 18:46, Thierry Reding пишет: ... >> + gpio@6000d000 { >> + charging-enable-hog { >> + gpio-hog; >> + gpios = <TEGRA_GPIO(R, 6) GPIO_ACTIVE_HIGH>; >> + output-low; >> + }; >> + }; > > Isn't this something that we may want to change at some point? My > understanding is that GPIO hogs are permanent, so it won't be possible > to grab GPIO R.6 and change this. > > Are there any plans to allow setting this at runtime? I'm not aware about plans to change that charging hog. It's not a problem to remove the hog. I don't understand why you're saying that it's permanent. We have such hogs in Nexus7 DT for the 3G modem pins. If we'll ever have a driver for that modem, then we will remove those hogs, not a problem. > [...] >> + i2c2: i2c@7000c400 { >> + status = "okay"; >> + clock-frequency = <100000>; >> + }; >> + >> + i2cmux { > > This doesn't belong here. The ordering is by unit-address and everything > without unit-address needs to move after the nodes with unit-addresses > and be sorted alphabetically. Logically it belongs here, since mux uses i2c2. All other DTs do the same. ... >> + memory-controller@7000f400 { >> + nvidia,use-ram-code; >> + >> + emc-tables@3 { >> + reg = <0x3>; >> + >> + #address-cells = <1>; >> + #size-cells = <0>; >> + >> + lpddr2 { >> + compatible = "elpida,B8132B2PB-6D-F", "jedec,lpddr2-s4"; >> + revision-id1 = <1>; >> + density = <2048>; >> + io-width = <16>; >> + }; >> + >> + emc-table@25000 { > > Ugh... looking at the bindings for this the naming here is rather > unfortunate. emc-tables@3 and emc-table@*... the top-level emc-tables > are really tables, but the emc-table@* are really entries or rows in > that table, not tables themselves. It's also rather unfortunate that we > duplicate the frequency in both the "reg" and "clock-frequency" > properties. One of them would've been enough. It's emc-tables@3 here because initially there were other tables that I removed during preparation of the DT for upstream. Those tables were untested and looked questionable to me. > Anyway, looks like this has basically been like this since forever, so > not much that can be done about it. > > Again, the memory-controller node needs to be sorted differently. There > are other occurrences of this throughout the file. Please feel free to reorder it.
10.12.2021 18:50, Thierry Reding пишет: > On Wed, Dec 08, 2021 at 08:35:51PM +0300, Dmitry Osipenko wrote: >> From: Svyatoslav Ryhel <clamor95@gmail.com> >> >> Add common DTSI for Tegra30 ASUS Transformers. It will be used by multiple >> device-trees of ASUS devices. The common part initially was born out of >> the ASUS TF300T tablet's device-tree that was created by Michał Mirosław. >> It was heavily reworked and improved by Svyatoslav Ryhel, Maxim Schwalm, >> Ion Agorria et al. >> >> [digetx@gmail.com: factored out common part into separate patch and wrote commit message] >> Co-developed-by: Ion Agorria <ion@agorria.com> >> Signed-off-by: Ion Agorria <ion@agorria.com> >> Co-developed-by: Maxim Schwalm <maxim.schwalm@gmail.com> >> Signed-off-by: Maxim Schwalm <maxim.schwalm@gmail.com> >> Co-developed-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> >> Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> >> Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com> >> Signed-off-by: Dmitry Osipenko <digetx@gmail.com> >> --- >> .../dts/tegra30-asus-transformer-common.dtsi | 1729 +++++++++++++++++ >> 1 file changed, 1729 insertions(+) >> create mode 100644 arch/arm/boot/dts/tegra30-asus-transformer-common.dtsi >> >> diff --git a/arch/arm/boot/dts/tegra30-asus-transformer-common.dtsi b/arch/arm/boot/dts/tegra30-asus-transformer-common.dtsi >> new file mode 100644 >> index 000000000000..be77212dd8c7 >> --- /dev/null >> +++ b/arch/arm/boot/dts/tegra30-asus-transformer-common.dtsi >> @@ -0,0 +1,1729 @@ >> +// SPDX-License-Identifier: GPL-2.0 >> + >> +#include <dt-bindings/input/gpio-keys.h> >> +#include <dt-bindings/input/input.h> >> +#include <dt-bindings/thermal/thermal.h> >> + >> +#include "tegra30.dtsi" >> +#include "tegra30-cpu-opp.dtsi" >> +#include "tegra30-cpu-opp-microvolt.dtsi" >> + >> +/ { >> + chassis-type = "convertible"; >> + >> + aliases { >> + mmc0 = &sdmmc4; /* eMMC */ > > Looks like a tab snuck in there... otherwise this also has some nodes > sorted in the wrong order. I was fixing these tabs, but missed that one. Good catch. Apparently I missed to recheck the order after the most recent changes, good that you noticed it. > [...] >> + pad-keys { > > Any specific reason why this is called pad-keys? We call it gpio-keys > everywhere else. Not sure about the name. Perhaps Svyatoslav likes the pad-keys name more. I recall it was named gpio-keys at some point in the past. Again, will you change it all by yourself or should I make v6?
10.12.2021 18:46, Thierry Reding пишет: > Again, the memory-controller node needs to be sorted differently. There > are other occurrences of this throughout the file. Memory-controller node is placed on purpose in the end of DT to keep it readable. Those huge timings make it unreadable. I don't want to change it. Alternatively, we can factor out timings into separate DTSI, but it's unnecessary to me. I leave it up to you to decide what to do. I'll reorder couple nodes alphabetically, those that don't have address and were missed by me. The by-address nodes are all okay to me. Please feel free to reorder nodes to yours liking by yourself while applying if I'll miss something.