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Message-ID: <20151211185916.GM4000@usrtlx11787.corpusers.net>
Date: Fri, 11 Dec 2015 10:59:16 -0800
From: Bjorn Andersson <bjorn.andersson@...ymobile.com>
To: John Stultz <john.stultz@...aro.org>
CC: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
Rob Herring <robh+dt@...nel.org>,
Pawel Moll <pawel.moll@....com>,
Mark Rutland <mark.rutland@....com>,
Ian Campbell <ijc+devicetree@...lion.org.uk>,
Kumar Gala <galak@...eaurora.org>,
Russell King <linux@....linux.org.uk>,
Vinay Simha BN <simhavcs@...il.com>,
"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>
Subject: Re: [RFC][PATCH] devicetree: Add DTS file to support the Nexus7 2013
(flo) device.
On Fri 04 Dec 20:36 PST 2015, John Stultz wrote:
> This patch adds a dts file to support the Nexus7 2013
> device. Its based off of the qcom-apq8064-ifc6410.dts
> which is similar hardware.
>
> Also includes some comments and context folded in
> from Vinay Simha BN <simhavcs@...il.com>
>
> This is my first DTS submission, so thoughts or feedback
> on would be appreciated.
Please remove this from the commit message ;)
[..]
> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> index 30bbc37..c0f9076a 100644
> --- a/arch/arm/boot/dts/Makefile
> +++ b/arch/arm/boot/dts/Makefile
> @@ -502,6 +502,7 @@ dtb-$(CONFIG_ARCH_PRIMA2) += \
> dtb-$(CONFIG_ARCH_QCOM) += \
> qcom-apq8064-cm-qs600.dtb \
> qcom-apq8064-ifc6410.dtb \
> + qcom-apq8064-nexus7-flo.dtb \
The format for the Sony products are <platform>-sony-<product>.dts, I
think we should try to follow this for other devices as well.
> qcom-apq8074-dragonboard.dtb \
> qcom-apq8084-ifc6540.dtb \
> qcom-apq8084-mtp.dtb \
> diff --git a/arch/arm/boot/dts/qcom-apq8064-nexus7-flo.dts b/arch/arm/boot/dts/qcom-apq8064-nexus7-flo.dts
> new file mode 100644
> index 0000000..5183d18
> --- /dev/null
> +++ b/arch/arm/boot/dts/qcom-apq8064-nexus7-flo.dts
> @@ -0,0 +1,306 @@
> +#include "qcom-apq8064-v2.0.dtsi"
> +#include <dt-bindings/gpio/gpio.h>
> +#include <dt-bindings/input/input.h>
> +#include <dt-bindings/pinctrl/qcom,pmic-gpio.h>
> +/ {
> + model = "Qualcomm APQ8064/Nexus7(flo)";
> + compatible = "qcom,apq8064-nexus7-flo", "qcom,apq8064";
The Nexus7 isn't a Qualcomm product, so you should omit that from the
model and I believe the compatible should be "asus,something-flo",
"qcom,apq8064".
> +
> + aliases {
> + serial0 = &gsbi7_serial;
> + serial1 = &gsbi6_serial;
> + };
> +
> + chosen {
> + stdout-path = "serial0:115200n8";
> + };
> +
> + soc {
> + rpm@...000 {
> + regulators {
> + vdd_l1_l2_l12_l18-supply = <&pm8921_s4>;
> + vin_lvs1_3_6-supply = <&pm8921_s4>;
> + vin_lvs4_5_7-supply = <&pm8921_s4>;
> +
> +
> + vdd_l24-supply = <&pm8921_s1>;
> + vdd_l25-supply = <&pm8921_s1>;
> + vin_lvs2-supply = <&pm8921_s1>;
> +
> + vdd_l26-supply = <&pm8921_s7>;
> + vdd_l27-supply = <&pm8921_s7>;
> + vdd_l28-supply = <&pm8921_s7>;
> +
> + vdd_ncp-supply = <&pm8921_l6>;
> +
> + /* Buck SMPS */
> + pm8921_s1: s1 {
These nodes already have labels, from the dtsi. So please omit the
labels.
> + regulator-always-on;
> + regulator-min-microvolt = <1225000>;
> + regulator-max-microvolt = <1225000>;
> + qcom,switch-mode-frequency = <3200000>;
> + bias-pull-down;
> + };
> +
[..]
> + };
> +
> + ext_3p3v: regulator-fixed@1 {
This regulator does not sit on the mmio bus should as such be moved
outside of the soc {}.
> + compatible = "regulator-fixed";
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-name = "ext_3p3v";
> + regulator-type = "voltage";
> + startup-delay-us = <0>;
> + gpio = <&tlmm_pinmux 77 GPIO_ACTIVE_HIGH>;
> + enable-active-high;
> + regulator-boot-on;
> + };
> +
> + gsbi3: gsbi@...00000 {
Please omit this label.
> + status = "okay";
> + qcom,mode = <GSBI_PROT_I2C>;
> + i2c3: i2c@...80000 {
Please omit this label.
> + status = "okay";
> + clock-frequency = <200000>;
> + pinctrl-0 = <&i2c3_pins>;
> + pinctrl-names = "default";
> +
> + trackpad: trackpad@10 {
Please omit this label.
> + compatible = "elan,ekth3500";
> + reg = <0x10>;
> + interrupt-parent = <&tlmm_pinmux>;
> + interrupts = <6 IRQ_TYPE_EDGE_FALLING>;
> + };
> + };
> + };
[..]
> +
> + /* OTG */
> + usb1_phy: phy@...00000 {
Please omit this label.
> + status = "okay";
> + vddcx-supply = <&pm8921_s3>;
> + v3p3-supply = <&pm8921_l3>;
> + v1p8-supply = <&pm8921_l4>;
> + };
> +
> + usb3_phy: phy@...20000 {
Please omit this label.
> + status = "okay";
> + vddcx-supply = <&pm8921_s3>;
> + v3p3-supply = <&pm8921_l3>;
> + v1p8-supply = <&pm8921_l23>;
> + };
> +
> + usb4_phy: phy@...30000 {
Please omit this label.
> + status = "okay";
> + vddcx-supply = <&pm8921_s3>;
> + v3p3-supply = <&pm8921_l3>;
> + v1p8-supply = <&pm8921_l23>;
> + };
Why do you have 3 USB phys enabled on this board? How is this board
designed?
> +
> + gadget1: gadget@...00000 {
Please omit this label.
> + status = "okay";
> + };
> +
> + /* OTG */
> + usb1: usb@...00000 {
Please omit this label.
> + status = "okay";
> + };
> +
> + usb3: usb@...20000 {
Please omit this label.
> + status = "okay";
> + };
> +
> + usb4: usb@...30000 {
Please omit this label.
> + status = "okay";
> + };
Again, 3 usb gadgets?
> +
> + amba {
> + /* eMMC */
> + sdcc1: sdcc@...00000 {
Please omit this label.
> + status = "okay";
> + vmmc-supply = <&pm8921_l5>;
> + vqmmc-supply = <&pm8921_s4>;
> + };
> +
> + /* WLAN */
> + sdcc4: sdcc@...c0000 {
I believe the Nexus7 sports a Qualcomm wifi chip, if so then please
remove this node entirely (it doesn't use sdio)
> + status = "okay";
> + vmmc-supply = <&ext_3p3v>;
> + vqmmc-supply = <&pm8921_lvs1>;
> + };
> + };
> +
> + gpio-keys {
gpio-keys doesn't sit on the mmio bus, so please move it outside soc {}.
> + compatible = "gpio-keys";
> + power {
> + label = "Power";
> + gpios = <&tlmm_pinmux 26 GPIO_ACTIVE_LOW>;
> + linux,code = <KEY_POWER>;
> + gpio-key,wakeup;
> + };
> + volume_up {
> + label = "Volume Up";
> + gpios = <&pm8921_gpio 4 GPIO_ACTIVE_HIGH>;
> + linux,code = <KEY_VOLUMEUP>;
> + };
> + volume_down {
> + label = "Volume Down";
> + gpios = <&pm8921_gpio 38 GPIO_ACTIVE_HIGH>;
> + linux,code = <KEY_VOLUMEDOWN>;
> + };
> + };
> +
> + };
> +};
> diff --git a/arch/arm/boot/dts/qcom-apq8064.dtsi b/arch/arm/boot/dts/qcom-apq8064.dtsi
> index a4c1762..d541438 100644
> --- a/arch/arm/boot/dts/qcom-apq8064.dtsi
> +++ b/arch/arm/boot/dts/qcom-apq8064.dtsi
> @@ -288,6 +288,8 @@
> clocks = <&gcc GSBI3_QUP_CLK>,
> <&gcc GSBI3_H_CLK>;
> clock-names = "core", "iface";
> + #address-cells = <1>;
> + #size-cells = <0>;
Please send this as a separate patch, with my Ack.
Regards,
Bjorn
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